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51 Commits

Author SHA1 Message Date
Kayne Ruse 7f5e2a29eb Deprecated old v2 docs branch 2026-05-15 08:51:47 +10:00
Kayne Ruse 8b5a991ed1 Update index.md 2026-05-09 13:10:58 +10:00
Kayne Ruse 511c0280df Update index.md
Added info about my gitea.
2026-05-01 19:17:10 +10:00
Kayne Ruse 34e90879d7 Re-added twitter metatags 2026-04-11 01:18:29 +10:00
Kayne Ruse 08a417a66a Stripped back docs website 2026-04-10 12:32:52 +10:00
Kayne Ruse 60c07d64ef Fixed a typo 2025-03-01 16:21:59 +11:00
Kayne Ruse 0f4d474231 Tweaked repo link 2025-02-28 20:57:51 +11:00
Kayne Ruse a6fc01f7be Updated links after moving the repo 2025-02-28 20:11:03 +11:00
Kayne Ruse 9b68589d87 Swapping v1 and v2 sites 2025-02-28 11:42:53 +11:00
Kayne Ruse 3f0deaeb8a Squish da kitty 2025-02-18 00:04:00 +11:00
Kayne Ruse 5028f9a9f6 Invert blacktocat.png 2025-02-17 23:57:17 +11:00
Kayne Ruse 76437cb093 A better link to the repo 2025-02-17 23:53:22 +11:00
Kayne Ruse 92bc0466eb Added google analytics tag 2025-02-17 23:39:19 +11:00
Kayne Ruse 6eecfc31d6 Tweak 2025-02-02 22:42:57 +11:00
Kayne Ruse f7bab4da10 Tweaked wording 2025-02-02 22:33:11 +11:00
Kayne Ruse d95c6e6479 Oh fuck Jekyll. If this doesn't work, I'm leaving it for now. 2025-02-02 17:11:07 +11:00
Kayne Ruse 47e6983ad1 Jekyll is an ass. 2025-02-02 17:04:21 +11:00
Kayne Ruse 66e8c0fa7a ffs. 2025-02-02 17:00:55 +11:00
Kayne Ruse 2ea552fedd Fixed syntax include 2025-02-02 16:55:40 +11:00
Kayne Ruse 3747d0a326 Tweaked syntax highlighting, added control flow to docs
I also found some issues in the code, so I fixed them first.
2025-02-02 16:44:34 +11:00
Kayne Ruse c2a13e4183 Well, I clucked that up. 2025-01-24 17:15:58 +11:00
Kayne Ruse 062f676f52 Nothing to see here. 2025-01-24 17:11:51 +11:00
Kayne Ruse f5ebbdf847 link to source 2025-01-22 10:22:22 +11:00
Kayne Ruse 1a3d08958b That overflow-x is odd 2025-01-22 10:14:52 +11:00
Kayne Ruse b1a08289e2 Fixing bounds 2025-01-22 10:07:51 +11:00
Kayne Ruse f1c2e449ea Oh, come on 2025-01-22 09:59:47 +11:00
Kayne Ruse a95ed58cd8 There we go 2025-01-22 09:54:59 +11:00
Kayne Ruse 74a898aa47 Does this work? 2025-01-22 09:49:19 +11:00
Kayne Ruse 32601ae9a9 Hide title on mobile 2025-01-22 09:42:34 +11:00
Kayne Ruse 8610ac2529 Started writing some docs 2025-01-14 13:21:09 +11:00
Kayne Ruse 782f60da9f Is it done? 2025-01-12 16:21:10 +11:00
Kayne Ruse 3a25df60e3 Tweaked text column 2025-01-12 16:19:22 +11:00
Kayne Ruse 7d35c5b325 Trying to fix sort order 2025-01-12 16:16:38 +11:00
Kayne Ruse 1e432387c2 Moved the badge 2025-01-12 16:11:12 +11:00
Kayne Ruse 42dbe038cf Tweaked the style 2025-01-12 16:05:25 +11:00
Kayne Ruse 9563185ef1 filling out placeholder files 2025-01-12 15:17:47 +11:00
Kayne Ruse 1db834f721 Added deploy workflow file 2025-01-12 12:30:42 +11:00
Kayne Ruse f39d725001 Trying a new jekyll theme 2025-01-12 12:26:23 +11:00
Kayne Ruse 98ccfb4215 Forcing a deploy 2025-01-11 22:11:37 +11:00
Kayne Ruse 9d26f94e25 tweak 2025-01-11 22:02:54 +11:00
Kayne Ruse ba4d4fedc1 Attempting to make a deployment mirror 2025-01-11 21:26:22 +11:00
Kayne Ruse b2825690ec Whoops 2025-01-03 16:17:14 +11:00
Kayne Ruse 46d5d7245a I wonder if... 2025-01-03 16:14:15 +11:00
Kayne Ruse b0194db1c4 Fiddling with DNS stuff 2025-01-01 21:36:56 +11:00
Kayne Ruse dc8845fd0e Starting fiddling with the docs site proper 2024-12-27 13:40:49 +11:00
Kayne Ruse 2c4324db70 Update operators.md 2024-11-17 20:20:31 +11:00
Kayne Ruse 28b5c2dab0 Update reserved-words.md 2024-11-17 20:12:13 +11:00
Kayne Ruse ebdc4c6cff Update README.md 2024-11-17 20:09:37 +11:00
Kayne Ruse 151ad7656d Added more reserved words 2024-10-27 18:09:52 +11:00
Kayne Ruse 94fabf2f4e Added types.md 2024-10-27 17:59:44 +11:00
Kayne Ruse 655827f672 Initial commit with a few basic files 2024-10-19 21:11:00 +11:00
186 changed files with 119 additions and 25337 deletions
-5
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# These are supported funding model platforms
patreon: krgamestudios
ko_fi: krgamestudios
custom: ["https://www.paypal.com/donate/?hosted_button_id=73Q82T2ZHV8AA"]
-29
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@@ -1,29 +0,0 @@
---
name: Bug Report
about: Create a report to help us improve
labels: bug
---
## Describe the bug
A clear and concise description of what the bug is.
## To Reproduce
Steps to reproduce the behaviour:
1. run `git pull` on the repository
2. run `make rebuild` on the code
3. ...
You can include some screenshots here if you'd like!
## Versioning
- OS: [for example MacOS, Windows, iOS, Android]
- Version: [What version of Toy was this running?]
### Additional context
Add any other context about the problem here.
-17
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@@ -1,17 +0,0 @@
---
name: Feature Request
about: Suggest an idea
labels: enhancement
---
### Describe the feature youd like
A clear and concise description of what youd like to be able to do with Toy.
### Describe alternatives you've considered
A clear and concise description of any alternative solutions or workarounds you've considered.
### Additional context
Add any other context about the feature request here.
-10
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@@ -1,10 +0,0 @@
---
name: Question
about: Ask a Question
labels: question
---
### How can I help?
I'm always here to help with any inquiries you have regarding Toy and its related projects.
@@ -1,43 +0,0 @@
name: Continuous Integration v1.x
#trigger when these occur
on:
push:
branches:
- v1
pull_request:
types:
- opened
- edited
- reopened
branches:
- v1
workflow_dispatch:
#testing the CI workflows under multiple supported conditions
jobs:
test-valgrind:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
- name: install valgrind
run: sudo apt install valgrind
- name: make test (valgrind)
run: make test
test-sanitized:
runs-on: ubuntu-latest
steps:
- uses: actions/checkout@v4
- name: make test (sanitized)
run: make test-sanitized
test-mingw32:
runs-on: windows-latest
steps:
- uses: actions/checkout@v4
- name: make test (mingw32)
run: make test
-59
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@@ -1,59 +0,0 @@
# Prerequisites
*.d
# Object files
*.o
*.ko
*.obj
*.elf
# Linker output
*.ilk
*.map
*.exp
# Precompiled Headers
*.gch
*.pch
# Libraries
*.lib
*.a
*.la
*.lo
# Shared objects (inc. Windows DLLs)
*.dll
*.so
*.so.*
*.dylib
# Executables
*.exe
*.out
*.app
*.i*86
*.x86_64
*.hex
# Debug files
*.dSYM/
*.su
*.idb
*.pdb
# Kernel Module Compile Results
*.mod*
*.cmd
.tmp_versions/
modules.order
Module.symvers
Mkfile.old
dkms.conf
.cproject
.project
.settings/
temp/
Release/
out/
+1
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@@ -0,0 +1 @@
v2.toylang.com
-13
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@@ -1,13 +0,0 @@
# License
Copyright (c) 2020-2024 Kayne Ruse, KR Game Studios
This software is provided 'as-is', without any express or implied warranty. In no event will the authors be held liable for any damages arising from the use of this software.
Permission is granted to anyone to use this software for any purpose, including commercial applications, and to alter it and redistribute it freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
+2 -84
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@@ -1,86 +1,4 @@
<p align="center">
<image src="toylogo.png" />
</p>
This git branch is the (now deprecated) documentation website for The Toy Programming Language version 2.x, which can be found at [https://github.com/krgamestudios/Toy](https://github.com/krgamestudios/Toy).
# Toy v1
Toy v2.x is still under active development, so this documentation will change and evolve over time, and may not reflect the current reference implementation.
The Toy programming language is an imperative bytecode-intermediate embedded scripting language. It isn't intended to operate on its own, but rather as part of another program, the "host". This process is intended to allow a decent amount of easy customisation by the host's end user, by exposing logic in script files. Alternatively, binary files in a custom format can be used as well.
The host will provide all of the extensions needed on a case-by-case basis. Script files have the `.toy` file extension, while binary files have the `.tb` file extension.
This is the Toy programming language interpreter, written in C.
# Nifty Features
* Simple C-like syntax
* Bytecode intermediate compilation
* Optional, but robust type system (including `opaque` for arbitrary data)
* Functions and types are first-class citizens
* Import native libraries from the host
* Fancy slice notation for strings, arrays and dictionaries
* Can re-direct output, error and assertion failure messages
* Open source under the zlib license
## Building
For Windows(mingw32 & cygwin), Linux and MacOS, simply run `make` in the root directory.
For Windows(MSVC), Visual Studio project files are included.
Note: MacOS and Windows(MSVC) are not officially supported, but we'll do our best!
## Tools
Run `make install-tools` to install a number of tools, including:
* VSCode syntax highlighting
Other tools such as a disassembler are available, as well - simply run `make` in the correct directory.
## Syntax
```
import standard; //for a bunch of utility functions
print "Hello world"; //"print" is a keyword
var msg = "foobar"; //declare a variable like this
assert true, "This message won't be seen"; //assert is another keyword
//-------------------------
fn makeCounter() { //declare a function like this
var total: int = 0; //declare a variable with a type like this
fn counter(): int { //declare a return type like this
return ++total;
}
return counter; //closures are explicitly supported
}
var tally = makeCounter();
print tally(); //1
print tally(); //2
print tally(); //3
```
# License
This source code is covered by the zlib license (see [LICENSE.md](LICENSE.md)).
# Contributions
@hiperiondev - Disassembler, porting support and feedback
@add00 - Library support
@gruelingpine185 - Unofficial MacOS support
@solar-mist - Minor bugfixes
Unnamed Individuals - Feedback
# Patrons via Patreon
* Seth A. Robinson
Special thanks to http://craftinginterpreters.com/ for their fantastic book that set me on this path.
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<ClInclude Include="source\toy_common.h" />
<ClInclude Include="source\toy_compiler.h" />
<ClInclude Include="source\toy_console_colors.h" />
<ClInclude Include="source\toy_interpreter.h" />
<ClInclude Include="source\toy_keyword_types.h" />
<ClInclude Include="source\toy_lexer.h" />
<ClInclude Include="source\toy_literal.h" />
<ClInclude Include="source\toy_literal_array.h" />
<ClInclude Include="source\toy_literal_dictionary.h" />
<ClInclude Include="source\toy_memory.h" />
<ClInclude Include="source\toy_opcodes.h" />
<ClInclude Include="source\toy_parser.h" />
<ClInclude Include="source\toy_reffunction.h" />
<ClInclude Include="source\toy_refstring.h" />
<ClInclude Include="source\toy_scope.h" />
<ClInclude Include="source\toy_token_types.h" />
</ItemGroup>
<Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
<ImportGroup Label="ExtensionTargets">
</ImportGroup>
</Project>
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Microsoft Visual Studio Solution File, Format Version 12.00
# Visual Studio Version 17
VisualStudioVersion = 17.4.33213.308
MinimumVisualStudioVersion = 10.0.40219.1
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "Toy", "Toy.vcxproj", "{26360002-CC2A-469A-9B28-BA0C1AF41657}"
EndProject
Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "Repl", "Repl.vcxproj", "{97F823E5-3AB8-47EF-B142-C15DD7CADF76}"
ProjectSection(ProjectDependencies) = postProject
{26360002-CC2A-469A-9B28-BA0C1AF41657} = {26360002-CC2A-469A-9B28-BA0C1AF41657}
EndProjectSection
EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|x64 = Debug|x64
Debug|x86 = Debug|x86
Release|x64 = Release|x64
Release|x86 = Release|x86
EndGlobalSection
GlobalSection(ProjectConfigurationPlatforms) = postSolution
{26360002-CC2A-469A-9B28-BA0C1AF41657}.Debug|x64.ActiveCfg = Debug|x64
{26360002-CC2A-469A-9B28-BA0C1AF41657}.Debug|x64.Build.0 = Debug|x64
{26360002-CC2A-469A-9B28-BA0C1AF41657}.Debug|x86.ActiveCfg = Debug|Win32
{26360002-CC2A-469A-9B28-BA0C1AF41657}.Debug|x86.Build.0 = Debug|Win32
{26360002-CC2A-469A-9B28-BA0C1AF41657}.Release|x64.ActiveCfg = Release|x64
{26360002-CC2A-469A-9B28-BA0C1AF41657}.Release|x64.Build.0 = Release|x64
{26360002-CC2A-469A-9B28-BA0C1AF41657}.Release|x86.ActiveCfg = Release|Win32
{26360002-CC2A-469A-9B28-BA0C1AF41657}.Release|x86.Build.0 = Release|Win32
{97F823E5-3AB8-47EF-B142-C15DD7CADF76}.Debug|x64.ActiveCfg = Debug|x64
{97F823E5-3AB8-47EF-B142-C15DD7CADF76}.Debug|x64.Build.0 = Debug|x64
{97F823E5-3AB8-47EF-B142-C15DD7CADF76}.Debug|x86.ActiveCfg = Debug|Win32
{97F823E5-3AB8-47EF-B142-C15DD7CADF76}.Debug|x86.Build.0 = Debug|Win32
{97F823E5-3AB8-47EF-B142-C15DD7CADF76}.Release|x64.ActiveCfg = Release|x64
{97F823E5-3AB8-47EF-B142-C15DD7CADF76}.Release|x64.Build.0 = Release|x64
{97F823E5-3AB8-47EF-B142-C15DD7CADF76}.Release|x86.ActiveCfg = Release|Win32
{97F823E5-3AB8-47EF-B142-C15DD7CADF76}.Release|x86.Build.0 = Release|Win32
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
EndGlobalSection
GlobalSection(ExtensibilityGlobals) = postSolution
SolutionGuid = {7089F1AD-8EC0-4F27-AFD1-5FD43D91AABC}
EndGlobalSection
EndGlobal
+4
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title: The Toy Programming Language
description: Documentation For The Toy Programming Language
keywords: programming,coding
author: Kayne Ruse (Ratstail91)
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<!-- Google tag (gtag.js) -->
<script async src="https://www.googletagmanager.com/gtag/js?id=G-WQ8Q1JV8E8"></script>
<script>
window.dataLayer = window.dataLayer || [];
function gtag(){dataLayer.push(arguments);}
gtag('js', new Date());
gtag('config', 'G-WQ8Q1JV8E8');
</script>
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<!-- site information -->
<meta name="description" content="{{ site.description }}" />
<meta name="author" content="{{ site.author }}" />
<meta name="keywords" content="{{ site.keywords }}" />
<!-- facebook -->
<meta property="og:url" content="{{ site.url }}" />
<meta property="og:type" content="website" />
<meta property="og:image" content="{{ site.baseurl }}/assets/repo-preview.png" />
<meta property="og:title" content="{{ page.title }}" />
<meta property="og:description" content="{{ page.description }}" />
<!-- twitter -->
<meta name="twitter:card" content="{{ site.title }}" />
<meta name="twitter:url" content="{{ site.url}}" />
<meta name="twitter:type" content="website" />
<meta name="twitter:image" content="{{ site.baseurl }}/assets/repo-preview.png" />
<meta name="twitter:title" content="{{ page.title }}" />
<meta name="twitter:description" content="{{ page.description }}" />
<link rel="icon" href="{{ site.baseurl }}/favicon.png">
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<!doctype html>
<html lang="en">
<head>
<!-- device settings -->
<meta charset = "UTF-8" />
<meta name="Content-Type" content="text/html" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<!-- page title -->
<title>{{ page.title }}</title>
{% include metadata.html %}
{% include analytics.html %}
</head>
<body>
{{ content }}
</body>
</html>
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<?xml version="1.0" encoding="utf-8"?>
<browserconfig>
<msapplication>
<tile>
<square150x150logo src="/mstile-150x150.png"/>
<TileColor>#da532c</TileColor>
</tile>
</msapplication>
</browserconfig>
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---
layout: page
title: The Toy Programming Language
---
<div style="justify-self: center;">
<image src="assets/toylogo.png" width="250" height="250" />
</div>
<div style="justify-self: center;">
<a href="https://github.com/krgamestudios/Toy"><img src="https://github.com/krgamestudios/Toy/actions/workflows/continuous-integration-v2.yml/badge.svg"></a>
</div>
The Toy Programming Language is an imperative, bytecode-interpreted, embeddable scripting language. Rather than functioning independently, it serves as part of another program, the "host". This design allows for straightforward customization by both the host's developers and end users, achieved by exposing program logic through text files.
The documentation on this website is under construction, for further information, see the repository: [https://gitea.krgamestudios.com/krgamestudios/Toy](https://gitea.krgamestudios.com/krgamestudios/Toy), or the GitHub mirror: [https://github.com/krgamestudios/Toy](https://github.com/krgamestudios/Toy).
An example of Toy in action: [Vampire Toyvivors](https://gitea.krgamestudios.com/krgamestudios/VampireToyvivors).
-109
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export CFLAGS+=-std=c18 -pedantic -Werror
export TOY_OUTDIR = out
all: $(TOY_OUTDIR) repl
#repl builds
repl: $(TOY_OUTDIR) library
$(MAKE) -j8 -C repl
repl-static: $(TOY_OUTDIR) static
$(MAKE) -j8 -C repl
repl-release: clean $(TOY_OUTDIR) library-release
$(MAKE) -C repl release
repl-static-release: clean $(TOY_OUTDIR) static-release
$(MAKE) -C repl release
#lib builds
library: $(TOY_OUTDIR)
$(MAKE) -j8 -C source library
static: $(TOY_OUTDIR)
$(MAKE) -j8 -C source static
library-release: clean $(TOY_OUTDIR)
$(MAKE) -j8 -C source library-release
static-release: clean $(TOY_OUTDIR)
$(MAKE) -j8 -C source static-release
#distribution
dist: export CFLAGS+=-O2 -mtune=native -march=native
dist: repl-release
#utils
test: clean $(TOY_OUTDIR)
$(MAKE) -C test
test-sanitized: export CFLAGS+=-fsanitize=address,undefined
test-sanitized: export LIBS+=-static-libasan
test-sanitized: export DISABLE_VALGRIND=true
test-sanitized: clean $(TOY_OUTDIR)
$(MAKE) -C test
$(TOY_OUTDIR):
mkdir $(TOY_OUTDIR)
#utils
install-tools:
cp -rf tools/toylang.vscode-highlighting ~/.vscode/extensions
#utils
build-mecha: $(TOY_OUTDIR)
g++ -o $(TOY_OUTDIR)/mecha tools/mecha.cpp
build-docs: build-mecha
$(TOY_OUTDIR)/mecha $(wildcard source/*.h)
$(TOY_OUTDIR)/mecha $(wildcard repl/*.h)
docs:
mkdir docs
move-docs: docs
mv -u $(wildcard source/*.md) docs
mv -u $(wildcard repl/*.md) docs
documentation:
$(MAKE) build-docs
$(MAKE) move-docs
.PHONY: clean
clean:
ifeq ($(findstring CYGWIN, $(shell uname)),CYGWIN)
find . -type f -name '*.o' -exec rm -f -r -v {} \;
find . -type f -name '*.a' -exec rm -f -r -v {} \;
find . -type f -name '*.exe' -exec rm -f -r -v {} \;
find . -type f -name '*.dll' -exec rm -f -r -v {} \;
find . -type f -name '*.lib' -exec rm -f -r -v {} \;
find . -type f -name '*.so' -exec rm -f -r -v {} \;
find . -empty -type d -delete
else ifeq ($(shell uname),Linux)
find . -type f -name '*.o' -exec rm -f -r -v {} \;
find . -type f -name '*.a' -exec rm -f -r -v {} \;
find . -type f -name '*.exe' -exec rm -f -r -v {} \;
find . -type f -name '*.dll' -exec rm -f -r -v {} \;
find . -type f -name '*.lib' -exec rm -f -r -v {} \;
find . -type f -name '*.so' -exec rm -f -r -v {} \;
rm -rf out
find . -empty -type d -delete
else ifeq ($(OS),Windows_NT)
$(RM) *.o *.a *.exe
else ifeq ($(shell uname),Darwin)
find . -type f -name '*.o' -exec rm -f -r -v {} \;
find . -type f -name '*.a' -exec rm -f -r -v {} \;
find . -type f -name '*.exe' -exec rm -f -r -v {} \;
find . -type f -name '*.dll' -exec rm -f -r -v {} \;
find . -type f -name '*.lib' -exec rm -f -r -v {} \;
find . -type f -name '*.dylib' -exec rm -f -r -v {} \;
find . -type f -name '*.so' -exec rm -f -r -v {} \;
rm -rf out
find . -empty -type d -delete
else
@echo "Deletion failed - what platform is this?"
endif
rebuild: clean all
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#include "drive_system.h"
#include "toy_memory.h"
#include "toy_literal_dictionary.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
//file system API
static Toy_LiteralDictionary driveDictionary;
void Toy_initDriveSystem() {
Toy_initLiteralDictionary(&driveDictionary);
}
void Toy_freeDriveSystem() {
Toy_freeLiteralDictionary(&driveDictionary);
}
void Toy_setDrivePath(char* drive, char* path) {
Toy_Literal driveLiteral = TOY_TO_STRING_LITERAL(Toy_createRefString(drive));
Toy_Literal pathLiteral = TOY_TO_STRING_LITERAL(Toy_createRefString(path));
Toy_setLiteralDictionary(&driveDictionary, driveLiteral, pathLiteral);
Toy_freeLiteral(driveLiteral);
Toy_freeLiteral(pathLiteral);
}
Toy_Literal Toy_getDrivePathLiteral(Toy_Interpreter* interpreter, Toy_Literal* drivePathLiteral) {
//check argument types
if (!TOY_IS_STRING(*drivePathLiteral)) {
interpreter->errorOutput("Incorrect argument type passed to Toy_getDrivePathLiteral\n");
return TOY_TO_NULL_LITERAL;
}
Toy_RefString* drivePath = Toy_copyRefString(TOY_AS_STRING(*drivePathLiteral));
//get the drive and path as a string (can't trust that pesky strtok - custom split) TODO: move this to refstring library
size_t driveLength = 0;
while (Toy_toCString(drivePath)[driveLength] != ':') {
if (driveLength >= Toy_lengthRefString(drivePath)) {
interpreter->errorOutput("Incorrect drive path format given to Toy_getDrivePathLiteral\n");
return TOY_TO_NULL_LITERAL;
}
driveLength++;
}
Toy_RefString* drive = Toy_createRefStringLength(Toy_toCString(drivePath), driveLength);
Toy_RefString* filePath = Toy_createRefStringLength( &Toy_toCString(drivePath)[driveLength + 1], Toy_lengthRefString(drivePath) - driveLength );
//get the real drive file path
Toy_Literal driveLiteral = TOY_TO_STRING_LITERAL(drive); //NOTE: driveLiteral takes ownership of the refString
Toy_Literal pathLiteral = Toy_getLiteralDictionary(&driveDictionary, driveLiteral);
if (!TOY_IS_STRING(pathLiteral)) {
interpreter->errorOutput("Incorrect literal type found for drive: ");
Toy_printLiteralCustom(pathLiteral, interpreter->errorOutput);
interpreter->errorOutput("\n");
Toy_freeLiteral(driveLiteral);
Toy_freeLiteral(pathLiteral);
Toy_deleteRefString(filePath);
Toy_deleteRefString(drivePath);
return TOY_TO_NULL_LITERAL;
}
//get the final real file path (concat) TODO: move this concat to refstring library
Toy_RefString* path = Toy_copyRefString(TOY_AS_STRING(pathLiteral));
size_t fileLength = Toy_lengthRefString(path) + Toy_lengthRefString(filePath);
char* file = TOY_ALLOCATE(char, fileLength + 1); //+1 for null
snprintf(file, fileLength, "%s%s", Toy_toCString(path), Toy_toCString(filePath));
//clean up the drive/path stuff
Toy_deleteRefString(drivePath);
Toy_deleteRefString(filePath);
Toy_deleteRefString(path);
Toy_freeLiteral(driveLiteral);
Toy_freeLiteral(pathLiteral);
//check for break-out attempts
for (size_t i = 0; i < fileLength - 1; i++) {
if (file[i] == '.' && file[i + 1] == '.') {
interpreter->errorOutput("Parent directory access not allowed\n");
TOY_FREE_ARRAY(char, file, fileLength + 1);
return TOY_TO_NULL_LITERAL;
}
}
Toy_Literal result = TOY_TO_STRING_LITERAL(Toy_createRefStringLength(file, fileLength));
TOY_FREE_ARRAY(char, file, fileLength + 1);
return result;
}
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#pragma once
/*!
# drive_system.h
When accessing the file system through Toy (such as with the runner library), it's best practice to utilize the drive system - this system (tries to) prevent malicious accessing of files outside of the designated folders. It does this by causing an error when a script tries to access a parent directory.
To use the drive system, first you must designate specific folders which can be accessed, like so:
```c
#include "drive_system.h"
int main(int argc, char* argv[]) {
//the drive system uses a LiteralDictionary, which must be initialized with this
Toy_initDriveSystem();
Toy_setDrivePath("scripts", "assets/scripts");
Toy_setDrivePath("sprites", "assets/sprites");
Toy_setDrivePath("fonts", "assets/fonts");
//TODO: do you stuff here
//clean up the drive dictionary when you're done
Toy_freeDriveSystem();
return 0;
}
```
This utility is intended mainly for libraries to use - as such, the core of Toy does not utilize it.
### Implementation Details
The drive system uses a Toy's Dictionary structure to store the mappings between keys and values - this dictionary object is a static global which persists for the lifetime of the program.
!*/
#include "toy_common.h"
#include "toy_literal.h"
#include "toy_interpreter.h"
/*!
## Defined Functions
!*/
/*!
### void Toy_initDriveSystem()
This function initializes the drive system.
!*/
TOY_API void Toy_initDriveSystem();
/*!
### void Toy_freeDriveSystem()
This function cleans up after the drive system is no longer needed.
!*/
TOY_API void Toy_freeDriveSystem();
/*!
### void Toy_setDrivePath(char* drive, char* path)
This function sets a key-value pair in the drive system. It uses C strings, since its intended to be called directly from `main()`.
!*/
TOY_API void Toy_setDrivePath(char* drive, char* path);
/*!
### Toy_Literal Toy_getDrivePathLiteral(Toy_Interpreter* interpreter, Toy_Literal* drivePathLiteral)
This function, when given a string literal of the correct format, will return a new string literal containing the relative filepath to a specified file.
The correct format is `drive:/path/to/filename`, where `drive` is a drive that was specified with `Toy_setDrivePath()`.
On failure, this function returns a null literal.
!*/
TOY_API Toy_Literal Toy_getDrivePathLiteral(Toy_Interpreter* interpreter, Toy_Literal* drivePathLiteral);
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#pragma once
#include "toy_interpreter.h"
int Toy_hookMath(Toy_Interpreter* interpreter, Toy_Literal identifier, Toy_Literal alias);
-181
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@@ -1,181 +0,0 @@
#include "lib_random.h"
#include "toy_memory.h"
static int hashInt(int x) {
x = ((x >> 16) ^ x) * 0x45d9f3b;
x = ((x >> 16) ^ x) * 0x45d9f3b;
x = ((x >> 16) ^ x) * 0x45d9f3b;
x = (x >> 16) ^ x;
return x;
}
typedef struct Toy_RandomGenerator {
int seed; //mutated with each call
} Toy_RandomGenerator;
//Toy native functions
static int nativeCreateRandomGenerator(Toy_Interpreter* interpreter, Toy_LiteralArray* arguments) {
//arguments
if (arguments->count != 1) {
interpreter->errorOutput("Incorrect number of arguments to createRandomGenerator\n");
return -1;
}
//get the seed argument
Toy_Literal seedLiteral = Toy_popLiteralArray(arguments);
Toy_Literal seedLiteralIdn = seedLiteral;
if (TOY_IS_IDENTIFIER(seedLiteral) && Toy_parseIdentifierToValue(interpreter, &seedLiteral)) {
Toy_freeLiteral(seedLiteralIdn);
}
if (!TOY_IS_INTEGER(seedLiteral)) {
interpreter->errorOutput("Incorrect literal type passed to createRandomGenerator");
Toy_freeLiteral(seedLiteral);
return -1;
}
//generate the generator object
Toy_RandomGenerator* generator = TOY_ALLOCATE(Toy_RandomGenerator, 1);
generator->seed = TOY_AS_INTEGER(seedLiteral);
Toy_Literal generatorLiteral = TOY_TO_OPAQUE_LITERAL(generator, TOY_OPAQUE_TAG_RANDOM);
//return and cleanup
Toy_pushLiteralArray(&interpreter->stack, generatorLiteral);
Toy_freeLiteral(seedLiteral);
Toy_freeLiteral(generatorLiteral);
return 1;
}
static int nativeGenerateRandomNumber(Toy_Interpreter* interpreter, Toy_LiteralArray* arguments) {
//no arguments
if (arguments->count != 1) {
interpreter->errorOutput("Incorrect number of arguments to generateRandomNumber\n");
return -1;
}
//get the runner object
Toy_Literal generatorLiteral = Toy_popLiteralArray(arguments);
Toy_Literal generatorLiteralIdn = generatorLiteral;
if (TOY_IS_IDENTIFIER(generatorLiteral) && Toy_parseIdentifierToValue(interpreter, &generatorLiteral)) {
Toy_freeLiteral(generatorLiteralIdn);
}
if (TOY_GET_OPAQUE_TAG(generatorLiteral) != TOY_OPAQUE_TAG_RANDOM) {
interpreter->errorOutput("Unrecognized opaque literal in generateRandomNumber\n");
return -1;
}
Toy_RandomGenerator* generator = TOY_AS_OPAQUE(generatorLiteral);
//generate the new value and package up the return
generator->seed = hashInt(generator->seed);
Toy_Literal resultLiteral = TOY_TO_INTEGER_LITERAL(generator->seed);
Toy_pushLiteralArray(&interpreter->stack, resultLiteral);
//cleanup
Toy_freeLiteral(generatorLiteral);
Toy_freeLiteral(resultLiteral);
return 0;
}
static int nativeFreeRandomGenerator(Toy_Interpreter* interpreter, Toy_LiteralArray* arguments) {
//no arguments
if (arguments->count != 1) {
interpreter->errorOutput("Incorrect number of arguments to freeRandomGenerator\n");
return -1;
}
//get the runner object
Toy_Literal generatorLiteral = Toy_popLiteralArray(arguments);
Toy_Literal generatorLiteralIdn = generatorLiteral;
if (TOY_IS_IDENTIFIER(generatorLiteral) && Toy_parseIdentifierToValue(interpreter, &generatorLiteral)) {
Toy_freeLiteral(generatorLiteralIdn);
}
if (TOY_GET_OPAQUE_TAG(generatorLiteral) != TOY_OPAQUE_TAG_RANDOM) {
interpreter->errorOutput("Unrecognized opaque literal in freeRandomGenerator\n");
return -1;
}
Toy_RandomGenerator* generator = TOY_AS_OPAQUE(generatorLiteral);
//clear out the runner object
TOY_FREE(Toy_RandomGenerator, generator);
Toy_freeLiteral(generatorLiteral);
return 0;
}
//call the hook
typedef struct Natives {
const char* name;
Toy_NativeFn fn;
} Natives;
int Toy_hookRandom(Toy_Interpreter* interpreter, Toy_Literal identifier, Toy_Literal alias) {
//build the natives list
Natives natives[] = {
{"createRandomGenerator", nativeCreateRandomGenerator},
{"generateRandomNumber", nativeGenerateRandomNumber},
{"freeRandomGenerator", nativeFreeRandomGenerator},
{NULL, NULL}
};
//store the library in an aliased dictionary
if (!TOY_IS_NULL(alias)) {
//make sure the name isn't taken
if (Toy_isDeclaredScopeVariable(interpreter->scope, alias)) {
interpreter->errorOutput("Can't override an existing variable\n");
Toy_freeLiteral(alias);
return -1;
}
//create the dictionary to load up with functions
Toy_LiteralDictionary* dictionary = TOY_ALLOCATE(Toy_LiteralDictionary, 1);
Toy_initLiteralDictionary(dictionary);
//load the dict with functions
for (int i = 0; natives[i].name; i++) {
Toy_Literal name = TOY_TO_STRING_LITERAL(Toy_createRefString(natives[i].name));
Toy_Literal func = TOY_TO_FUNCTION_NATIVE_LITERAL(natives[i].fn);
Toy_setLiteralDictionary(dictionary, name, func);
Toy_freeLiteral(name);
Toy_freeLiteral(func);
}
//build the type
Toy_Literal type = TOY_TO_TYPE_LITERAL(TOY_LITERAL_DICTIONARY, true);
Toy_Literal strType = TOY_TO_TYPE_LITERAL(TOY_LITERAL_STRING, true);
Toy_Literal fnType = TOY_TO_TYPE_LITERAL(TOY_LITERAL_FUNCTION_NATIVE, true);
TOY_TYPE_PUSH_SUBTYPE(&type, strType);
TOY_TYPE_PUSH_SUBTYPE(&type, fnType);
//set scope
Toy_Literal dict = TOY_TO_DICTIONARY_LITERAL(dictionary);
Toy_declareScopeVariable(interpreter->scope, alias, type);
Toy_setScopeVariable(interpreter->scope, alias, dict, false);
//cleanup
Toy_freeLiteral(dict);
Toy_freeLiteral(type);
return 0;
}
//default
for (int i = 0; natives[i].name; i++) {
Toy_injectNativeFn(interpreter, natives[i].name, natives[i].fn);
}
return 0;
}
-7
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@@ -1,7 +0,0 @@
#pragma once
#include "toy_interpreter.h"
#define TOY_OPAQUE_TAG_RANDOM 200
int Toy_hookRandom(Toy_Interpreter* interpreter, Toy_Literal identifier, Toy_Literal alias);
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@@ -1,511 +0,0 @@
#include "lib_runner.h"
#include "toy_memory.h"
#include "toy_interpreter.h"
#include "repl_tools.h"
#include "drive_system.h"
#include <stdlib.h>
typedef struct Toy_Runner {
Toy_Interpreter interpreter;
const unsigned char* bytecode;
size_t size;
bool dirty;
} Toy_Runner;
//Toy native functions
static int nativeLoadScript(Toy_Interpreter* interpreter, Toy_LiteralArray* arguments) {
//arguments
if (arguments->count != 1) {
interpreter->errorOutput("Incorrect number of arguments to loadScript\n");
return -1;
}
//get the file path literal with a handle
Toy_Literal drivePathLiteral = Toy_popLiteralArray(arguments);
Toy_Literal drivePathLiteralIdn = drivePathLiteral;
if (TOY_IS_IDENTIFIER(drivePathLiteral) && Toy_parseIdentifierToValue(interpreter, &drivePathLiteral)) {
Toy_freeLiteral(drivePathLiteralIdn);
}
Toy_Literal filePathLiteral = Toy_getDrivePathLiteral(interpreter, &drivePathLiteral);
if (TOY_IS_NULL(filePathLiteral)) {
Toy_freeLiteral(filePathLiteral);
Toy_freeLiteral(drivePathLiteral);
return -1;
}
Toy_freeLiteral(drivePathLiteral);
//use raw types - easier
const char* filePath = Toy_toCString(TOY_AS_STRING(filePathLiteral));
size_t filePathLength = Toy_lengthRefString(TOY_AS_STRING(filePathLiteral));
//load and compile the bytecode
size_t fileSize = 0;
const char* source = (const char*)Toy_readFile(filePath, &fileSize);
if (!source) {
interpreter->errorOutput("Failed to load source file\n");
Toy_freeLiteral(filePathLiteral);
return -1;
}
const unsigned char* bytecode = Toy_compileString(source, &fileSize);
free((void*)source);
if (!bytecode) {
interpreter->errorOutput("Failed to compile source file\n");
Toy_freeLiteral(filePathLiteral);
return -1;
}
//build the runner object
Toy_Runner* runner = TOY_ALLOCATE(Toy_Runner, 1);
Toy_setInterpreterPrint(&runner->interpreter, interpreter->printOutput);
Toy_setInterpreterAssert(&runner->interpreter, interpreter->assertOutput);
Toy_setInterpreterError(&runner->interpreter, interpreter->errorOutput);
runner->interpreter.hooks = interpreter->hooks;
runner->interpreter.scope = NULL;
Toy_resetInterpreter(&runner->interpreter);
runner->bytecode = bytecode;
runner->size = fileSize;
runner->dirty = false;
//build the opaque object, and push it to the stack
Toy_Literal runnerLiteral = TOY_TO_OPAQUE_LITERAL(runner, TOY_OPAQUE_TAG_RUNNER);
Toy_pushLiteralArray(&interpreter->stack, runnerLiteral);
//free the drive path
Toy_freeLiteral(filePathLiteral);
return 1;
}
static int nativeLoadScriptBytecode(Toy_Interpreter* interpreter, Toy_LiteralArray* arguments) {
//arguments
if (arguments->count != 1) {
interpreter->errorOutput("Incorrect number of arguments to loadScriptBytecode\n");
return -1;
}
//get the argument
Toy_Literal drivePathLiteral = Toy_popLiteralArray(arguments);
Toy_Literal drivePathLiteralIdn = drivePathLiteral;
if (TOY_IS_IDENTIFIER(drivePathLiteral) && Toy_parseIdentifierToValue(interpreter, &drivePathLiteral)) {
Toy_freeLiteral(drivePathLiteralIdn);
}
Toy_Literal filePathLiteral = Toy_getDrivePathLiteral(interpreter, &drivePathLiteral);
if (TOY_IS_NULL(filePathLiteral)) {
Toy_freeLiteral(filePathLiteral);
Toy_freeLiteral(drivePathLiteral);
return -1;
}
Toy_freeLiteral(drivePathLiteral);
//use raw types - easier
const char* filePath = Toy_toCString(TOY_AS_STRING(filePathLiteral));
size_t filePathLength = Toy_lengthRefString(TOY_AS_STRING(filePathLiteral));
//load the bytecode
size_t fileSize = 0;
unsigned char* bytecode = (unsigned char*)Toy_readFile(filePath, &fileSize);
if (!bytecode) {
interpreter->errorOutput("Failed to load bytecode file\n");
return -1;
}
//build the runner object
Toy_Runner* runner = TOY_ALLOCATE(Toy_Runner, 1);
Toy_setInterpreterPrint(&runner->interpreter, interpreter->printOutput);
Toy_setInterpreterAssert(&runner->interpreter, interpreter->assertOutput);
Toy_setInterpreterError(&runner->interpreter, interpreter->errorOutput);
runner->interpreter.hooks = interpreter->hooks;
runner->interpreter.scope = NULL;
Toy_resetInterpreter(&runner->interpreter);
runner->bytecode = bytecode;
runner->size = fileSize;
runner->dirty = false;
//build the opaque object, and push it to the stack
Toy_Literal runnerLiteral = TOY_TO_OPAQUE_LITERAL(runner, TOY_OPAQUE_TAG_RUNNER);
Toy_pushLiteralArray(&interpreter->stack, runnerLiteral);
//free the drive path
Toy_freeLiteral(filePathLiteral);
return 1;
}
static int nativeRunScript(Toy_Interpreter* interpreter, Toy_LiteralArray* arguments) {
//no arguments
if (arguments->count != 1) {
interpreter->errorOutput("Incorrect number of arguments to runScript\n");
return -1;
}
//get the runner object
Toy_Literal runnerLiteral = Toy_popLiteralArray(arguments);
Toy_Literal runnerIdn = runnerLiteral;
if (TOY_IS_IDENTIFIER(runnerLiteral) && Toy_parseIdentifierToValue(interpreter, &runnerLiteral)) {
Toy_freeLiteral(runnerIdn);
}
if (TOY_GET_OPAQUE_TAG(runnerLiteral) != TOY_OPAQUE_TAG_RUNNER) {
interpreter->errorOutput("Unrecognized opaque literal in runScript\n");
return -1;
}
Toy_Runner* runner = TOY_AS_OPAQUE(runnerLiteral);
//run
if (runner->dirty) {
interpreter->errorOutput("Can't re-run a dirty script (try resetting it first)\n");
Toy_freeLiteral(runnerLiteral);
return -1;
}
unsigned char* bytecodeCopy = TOY_ALLOCATE(unsigned char, runner->size);
memcpy(bytecodeCopy, runner->bytecode, runner->size); //need a COPY of the bytecode, because the interpreter eats it
Toy_runInterpreter(&runner->interpreter, bytecodeCopy, runner->size);
runner->dirty = true;
//cleanup
Toy_freeLiteral(runnerLiteral);
return 0;
}
static int nativeGetScriptVar(Toy_Interpreter* interpreter, Toy_LiteralArray* arguments) {
//no arguments
if (arguments->count != 2) {
interpreter->errorOutput("Incorrect number of arguments to getScriptVar\n");
return -1;
}
//get the runner object
Toy_Literal varName = Toy_popLiteralArray(arguments);
Toy_Literal runnerLiteral = Toy_popLiteralArray(arguments);
Toy_Literal varNameIdn = varName;
if (TOY_IS_IDENTIFIER(varName) && Toy_parseIdentifierToValue(interpreter, &varName)) {
Toy_freeLiteral(varNameIdn);
}
Toy_Literal runnerIdn = runnerLiteral;
if (TOY_IS_IDENTIFIER(runnerLiteral) && Toy_parseIdentifierToValue(interpreter, &runnerLiteral)) {
Toy_freeLiteral(runnerIdn);
}
if (TOY_GET_OPAQUE_TAG(runnerLiteral) != TOY_OPAQUE_TAG_RUNNER) {
interpreter->errorOutput("Unrecognized opaque literal in getScriptVar\n");
return -1;
}
Toy_Runner* runner = TOY_AS_OPAQUE(runnerLiteral);
//dirty check
if (!runner->dirty) {
interpreter->errorOutput("Can't access variable from a non-dirty script (try running it first)\n");
Toy_freeLiteral(runnerLiteral);
return -1;
}
//get the desired variable
Toy_Literal varIdn = TOY_TO_IDENTIFIER_LITERAL(Toy_copyRefString(TOY_AS_STRING(varName)));
Toy_Literal result = TOY_TO_NULL_LITERAL;
Toy_getScopeVariable(runner->interpreter.scope, varIdn, &result);
Toy_pushLiteralArray(&interpreter->stack, result);
//cleanup
Toy_freeLiteral(result);
Toy_freeLiteral(varIdn);
Toy_freeLiteral(varName);
Toy_freeLiteral(runnerLiteral);
return 1;
}
static int nativeCallScriptFn(Toy_Interpreter* interpreter, Toy_LiteralArray* arguments) {
//no arguments
if (arguments->count < 2) {
interpreter->errorOutput("Incorrect number of arguments to callScriptFn\n");
return -1;
}
//get the rest args
Toy_LiteralArray tmp;
Toy_initLiteralArray(&tmp);
while (arguments->count > 2) {
Toy_Literal lit = Toy_popLiteralArray(arguments);
Toy_pushLiteralArray(&tmp, lit);
Toy_freeLiteral(lit);
}
Toy_LiteralArray rest;
Toy_initLiteralArray(&rest);
while (tmp.count > 0) { //correct the order of the rest args
Toy_Literal lit = Toy_popLiteralArray(&tmp);
Toy_pushLiteralArray(&rest, lit);
Toy_freeLiteral(lit);
}
Toy_freeLiteralArray(&tmp);
//get the runner object
Toy_Literal varName = Toy_popLiteralArray(arguments);
Toy_Literal runnerLiteral = Toy_popLiteralArray(arguments);
Toy_Literal varNameIdn = varName;
if (TOY_IS_IDENTIFIER(varName) && Toy_parseIdentifierToValue(interpreter, &varName)) {
Toy_freeLiteral(varNameIdn);
}
Toy_Literal runnerIdn = runnerLiteral;
if (TOY_IS_IDENTIFIER(runnerLiteral) && Toy_parseIdentifierToValue(interpreter, &runnerLiteral)) {
Toy_freeLiteral(runnerIdn);
}
if (TOY_GET_OPAQUE_TAG(runnerLiteral) != TOY_OPAQUE_TAG_RUNNER) {
interpreter->errorOutput("Unrecognized opaque literal in callScriptFn\n");
return -1;
}
Toy_Runner* runner = TOY_AS_OPAQUE(runnerLiteral);
//dirty check
if (!runner->dirty) {
interpreter->errorOutput("Can't access fn from a non-dirty script (try running it first)\n");
Toy_freeLiteral(runnerLiteral);
Toy_freeLiteralArray(&rest);
return -1;
}
//get the desired variable
Toy_Literal varIdn = TOY_TO_IDENTIFIER_LITERAL(Toy_copyRefString(TOY_AS_STRING(varName)));
Toy_Literal fn = TOY_TO_NULL_LITERAL;
Toy_getScopeVariable(runner->interpreter.scope, varIdn, &fn);
if (!TOY_IS_FUNCTION(fn)) {
interpreter->errorOutput("Can't run a non-function literal\n");
Toy_freeLiteral(fn);
Toy_freeLiteral(varIdn);
Toy_freeLiteral(varName);
Toy_freeLiteral(runnerLiteral);
Toy_freeLiteralArray(&rest);
}
//call
Toy_LiteralArray resultArray;
Toy_initLiteralArray(&resultArray);
Toy_callLiteralFn(interpreter, fn, &rest, &resultArray);
Toy_Literal result = TOY_TO_NULL_LITERAL;
if (resultArray.count > 0) {
result = Toy_popLiteralArray(&resultArray);
}
Toy_pushLiteralArray(&interpreter->stack, result);
//cleanup
Toy_freeLiteralArray(&resultArray);
Toy_freeLiteral(result);
Toy_freeLiteral(fn);
Toy_freeLiteral(varIdn);
Toy_freeLiteral(varName);
Toy_freeLiteral(runnerLiteral);
Toy_freeLiteralArray(&rest);
return 1;
}
static int nativeResetScript(Toy_Interpreter* interpreter, Toy_LiteralArray* arguments) {
//no arguments
if (arguments->count != 1) {
interpreter->errorOutput("Incorrect number of arguments to resetScript\n");
return -1;
}
//get the runner object
Toy_Literal runnerLiteral = Toy_popLiteralArray(arguments);
Toy_Literal runnerIdn = runnerLiteral;
if (TOY_IS_IDENTIFIER(runnerLiteral) && Toy_parseIdentifierToValue(interpreter, &runnerLiteral)) {
Toy_freeLiteral(runnerIdn);
}
if (TOY_GET_OPAQUE_TAG(runnerLiteral) != TOY_OPAQUE_TAG_RUNNER) {
interpreter->errorOutput("Unrecognized opaque literal in resetScript\n");
return -1;
}
Toy_Runner* runner = TOY_AS_OPAQUE(runnerLiteral);
//reset
if (!runner->dirty) {
interpreter->errorOutput("Can't reset a non-dirty script (try running it first)\n");
Toy_freeLiteral(runnerLiteral);
return -1;
}
Toy_resetInterpreter(&runner->interpreter);
runner->dirty = false;
Toy_freeLiteral(runnerLiteral);
return 0;
}
static int nativeFreeScript(Toy_Interpreter* interpreter, Toy_LiteralArray* arguments) {
//no arguments
if (arguments->count != 1) {
interpreter->errorOutput("Incorrect number of arguments to freeScript\n");
return -1;
}
//get the runner object
Toy_Literal runnerLiteral = Toy_popLiteralArray(arguments);
Toy_Literal runnerIdn = runnerLiteral;
if (TOY_IS_IDENTIFIER(runnerLiteral) && Toy_parseIdentifierToValue(interpreter, &runnerLiteral)) {
Toy_freeLiteral(runnerIdn);
}
if (TOY_GET_OPAQUE_TAG(runnerLiteral) != TOY_OPAQUE_TAG_RUNNER) {
interpreter->errorOutput("Unrecognized opaque literal in freeScript\n");
return -1;
}
Toy_Runner* runner = TOY_AS_OPAQUE(runnerLiteral);
//clear out the runner object
runner->interpreter.hooks = NULL;
Toy_freeInterpreter(&runner->interpreter);
TOY_FREE_ARRAY(unsigned char, runner->bytecode, runner->size);
TOY_FREE(Toy_Runner, runner);
Toy_freeLiteral(runnerLiteral);
return 0;
}
static int nativeCheckScriptDirty(Toy_Interpreter* interpreter, Toy_LiteralArray* arguments) {
//no arguments
if (arguments->count != 1) {
interpreter->errorOutput("Incorrect number of arguments to checkScriptDirty\n");
return -1;
}
//get the runner object
Toy_Literal runnerLiteral = Toy_popLiteralArray(arguments);
Toy_Literal runnerIdn = runnerLiteral;
if (TOY_IS_IDENTIFIER(runnerLiteral) && Toy_parseIdentifierToValue(interpreter, &runnerLiteral)) {
Toy_freeLiteral(runnerIdn);
}
if (TOY_GET_OPAQUE_TAG(runnerLiteral) != TOY_OPAQUE_TAG_RUNNER) {
interpreter->errorOutput("Unrecognized opaque literal in checkScriptDirty\n");
return -1;
}
Toy_Runner* runner = TOY_AS_OPAQUE(runnerLiteral);
//run
Toy_Literal result = TOY_TO_BOOLEAN_LITERAL(runner->dirty);
Toy_pushLiteralArray(&interpreter->stack, result);
//cleanup
Toy_freeLiteral(result);
Toy_freeLiteral(runnerLiteral);
return 0;
}
//call the hook
typedef struct Natives {
const char* name;
Toy_NativeFn fn;
} Natives;
int Toy_hookRunner(Toy_Interpreter* interpreter, Toy_Literal identifier, Toy_Literal alias) {
//build the natives list
Natives natives[] = {
{"loadScript", nativeLoadScript},
{"loadScriptBytecode", nativeLoadScriptBytecode},
{"runScript", nativeRunScript},
{"getScriptVar", nativeGetScriptVar},
{"callScriptFn", nativeCallScriptFn},
{"resetScript", nativeResetScript},
{"freeScript", nativeFreeScript},
{"checkScriptDirty", nativeCheckScriptDirty},
{NULL, NULL}
};
//store the library in an aliased dictionary
if (!TOY_IS_NULL(alias)) {
//make sure the name isn't taken
if (Toy_isDeclaredScopeVariable(interpreter->scope, alias)) {
interpreter->errorOutput("Can't override an existing variable\n");
Toy_freeLiteral(alias);
return -1;
}
//create the dictionary to load up with functions
Toy_LiteralDictionary* dictionary = TOY_ALLOCATE(Toy_LiteralDictionary, 1);
Toy_initLiteralDictionary(dictionary);
//load the dict with functions
for (int i = 0; natives[i].name; i++) {
Toy_Literal name = TOY_TO_STRING_LITERAL(Toy_createRefString(natives[i].name));
Toy_Literal func = TOY_TO_FUNCTION_NATIVE_LITERAL(natives[i].fn);
Toy_setLiteralDictionary(dictionary, name, func);
Toy_freeLiteral(name);
Toy_freeLiteral(func);
}
//build the type
Toy_Literal type = TOY_TO_TYPE_LITERAL(TOY_LITERAL_DICTIONARY, true);
Toy_Literal strType = TOY_TO_TYPE_LITERAL(TOY_LITERAL_STRING, true);
Toy_Literal fnType = TOY_TO_TYPE_LITERAL(TOY_LITERAL_FUNCTION_NATIVE, true);
TOY_TYPE_PUSH_SUBTYPE(&type, strType);
TOY_TYPE_PUSH_SUBTYPE(&type, fnType);
//set scope
Toy_Literal dict = TOY_TO_DICTIONARY_LITERAL(dictionary);
Toy_declareScopeVariable(interpreter->scope, alias, type);
Toy_setScopeVariable(interpreter->scope, alias, dict, false);
//cleanup
Toy_freeLiteral(dict);
Toy_freeLiteral(type);
return 0;
}
//default
for (int i = 0; natives[i].name; i++) {
Toy_injectNativeFn(interpreter, natives[i].name, natives[i].fn);
}
return 0;
}
-7
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@@ -1,7 +0,0 @@
#pragma once
#include "toy_interpreter.h"
#define TOY_OPAQUE_TAG_RUNNER 100
int Toy_hookRunner(Toy_Interpreter* interpreter, Toy_Literal identifier, Toy_Literal alias);
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-5
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@@ -1,5 +0,0 @@
#pragma once
#include "toy_interpreter.h"
int Toy_hookStandard(Toy_Interpreter* interpreter, Toy_Literal identifier, Toy_Literal alias);
-162
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@@ -1,162 +0,0 @@
#include "lib_toy_version_info.h"
#include "toy_memory.h"
int Toy_hookToyVersionInfo(Toy_Interpreter* interpreter, Toy_Literal identifier, Toy_Literal alias) {
//the info keys
Toy_Literal majorKeyLiteral = TOY_TO_STRING_LITERAL(Toy_createRefString("major"));
Toy_Literal minorKeyLiteral = TOY_TO_STRING_LITERAL(Toy_createRefString("minor"));
Toy_Literal patchKeyLiteral = TOY_TO_STRING_LITERAL(Toy_createRefString("patch"));
Toy_Literal buildKeyLiteral = TOY_TO_STRING_LITERAL(Toy_createRefString("build"));
Toy_Literal authorKeyLiteral = TOY_TO_STRING_LITERAL(Toy_createRefString("author"));
//the info identifiers
Toy_Literal majorIdentifierLiteral = TOY_TO_IDENTIFIER_LITERAL(Toy_createRefString("major"));
Toy_Literal minorIdentifierLiteral = TOY_TO_IDENTIFIER_LITERAL(Toy_createRefString("minor"));
Toy_Literal patchIdentifierLiteral = TOY_TO_IDENTIFIER_LITERAL(Toy_createRefString("patch"));
Toy_Literal buildIdentifierLiteral = TOY_TO_IDENTIFIER_LITERAL(Toy_createRefString("build"));
Toy_Literal authorIdentifierLiteral = TOY_TO_IDENTIFIER_LITERAL(Toy_createRefString("author"));
//the info values
Toy_Literal majorLiteral = TOY_TO_INTEGER_LITERAL(TOY_VERSION_MAJOR);
Toy_Literal minorLiteral = TOY_TO_INTEGER_LITERAL(TOY_VERSION_MINOR);
Toy_Literal patchLiteral = TOY_TO_INTEGER_LITERAL(TOY_VERSION_PATCH);
Toy_Literal buildLiteral = TOY_TO_STRING_LITERAL(Toy_createRefString(TOY_VERSION_BUILD));
Toy_Literal authorLiteral = TOY_TO_STRING_LITERAL(Toy_createRefString("Kayne Ruse, KR Game Studios"));
//store as an aliased dictionary
if (!TOY_IS_NULL(alias)) {
//make sure the name isn't taken
if (Toy_isDeclaredScopeVariable(interpreter->scope, alias)) {
interpreter->errorOutput("Can't override an existing variable\n");
Toy_freeLiteral(alias);
Toy_freeLiteral(majorKeyLiteral);
Toy_freeLiteral(minorKeyLiteral);
Toy_freeLiteral(patchKeyLiteral);
Toy_freeLiteral(buildKeyLiteral);
Toy_freeLiteral(authorKeyLiteral);
Toy_freeLiteral(majorIdentifierLiteral);
Toy_freeLiteral(minorIdentifierLiteral);
Toy_freeLiteral(patchIdentifierLiteral);
Toy_freeLiteral(buildIdentifierLiteral);
Toy_freeLiteral(authorIdentifierLiteral);
Toy_freeLiteral(majorLiteral);
Toy_freeLiteral(minorLiteral);
Toy_freeLiteral(patchLiteral);
Toy_freeLiteral(buildLiteral);
Toy_freeLiteral(authorLiteral);
return -1;
}
//create the dictionary to load up with values
Toy_LiteralDictionary* dictionary = TOY_ALLOCATE(Toy_LiteralDictionary, 1);
Toy_initLiteralDictionary(dictionary);
//set each key/value pair
Toy_setLiteralDictionary(dictionary, majorKeyLiteral, majorLiteral);
Toy_setLiteralDictionary(dictionary, minorKeyLiteral, minorLiteral);
Toy_setLiteralDictionary(dictionary, patchKeyLiteral, patchLiteral);
Toy_setLiteralDictionary(dictionary, buildKeyLiteral, buildLiteral);
Toy_setLiteralDictionary(dictionary, authorKeyLiteral, authorLiteral);
//build the type
Toy_Literal type = TOY_TO_TYPE_LITERAL(TOY_LITERAL_DICTIONARY, true);
Toy_Literal strType = TOY_TO_TYPE_LITERAL(TOY_LITERAL_STRING, true);
Toy_Literal anyType = TOY_TO_TYPE_LITERAL(TOY_LITERAL_ANY, true);
TOY_TYPE_PUSH_SUBTYPE(&type, strType);
TOY_TYPE_PUSH_SUBTYPE(&type, anyType);
//set scope
Toy_Literal dict = TOY_TO_DICTIONARY_LITERAL(dictionary);
Toy_declareScopeVariable(interpreter->scope, alias, type);
Toy_setScopeVariable(interpreter->scope, alias, dict, false);
//cleanup
Toy_freeLiteral(dict);
Toy_freeLiteral(type);
}
//store globally
else {
//make sure the names aren't taken
if (Toy_isDeclaredScopeVariable(interpreter->scope, majorKeyLiteral) ||
Toy_isDeclaredScopeVariable(interpreter->scope, minorKeyLiteral) ||
Toy_isDeclaredScopeVariable(interpreter->scope, patchKeyLiteral) ||
Toy_isDeclaredScopeVariable(interpreter->scope, buildKeyLiteral) ||
Toy_isDeclaredScopeVariable(interpreter->scope, authorKeyLiteral)) {
interpreter->errorOutput("Can't override an existing variable\n");
Toy_freeLiteral(alias);
Toy_freeLiteral(majorKeyLiteral);
Toy_freeLiteral(minorKeyLiteral);
Toy_freeLiteral(patchKeyLiteral);
Toy_freeLiteral(buildKeyLiteral);
Toy_freeLiteral(authorKeyLiteral);
Toy_freeLiteral(majorIdentifierLiteral);
Toy_freeLiteral(minorIdentifierLiteral);
Toy_freeLiteral(patchIdentifierLiteral);
Toy_freeLiteral(buildIdentifierLiteral);
Toy_freeLiteral(authorIdentifierLiteral);
Toy_freeLiteral(majorLiteral);
Toy_freeLiteral(minorLiteral);
Toy_freeLiteral(patchLiteral);
Toy_freeLiteral(buildLiteral);
Toy_freeLiteral(authorLiteral);
return -1;
}
Toy_Literal intType = TOY_TO_TYPE_LITERAL(TOY_LITERAL_INTEGER, true);
Toy_Literal strType = TOY_TO_TYPE_LITERAL(TOY_LITERAL_STRING, true);
//major
Toy_declareScopeVariable(interpreter->scope, majorIdentifierLiteral, intType);
Toy_setScopeVariable(interpreter->scope, majorIdentifierLiteral, majorLiteral, false);
//minor
Toy_declareScopeVariable(interpreter->scope, minorIdentifierLiteral, intType);
Toy_setScopeVariable(interpreter->scope, minorIdentifierLiteral, minorLiteral, false);
//patch
Toy_declareScopeVariable(interpreter->scope, patchIdentifierLiteral, intType);
Toy_setScopeVariable(interpreter->scope, patchIdentifierLiteral, patchLiteral, false);
//build
Toy_declareScopeVariable(interpreter->scope, buildIdentifierLiteral, strType);
Toy_setScopeVariable(interpreter->scope, buildIdentifierLiteral, buildLiteral, false);
//author
Toy_declareScopeVariable(interpreter->scope, authorIdentifierLiteral, strType);
Toy_setScopeVariable(interpreter->scope, authorIdentifierLiteral, authorLiteral, false);
Toy_freeLiteral(intType);
Toy_freeLiteral(strType);
}
//cleanup
Toy_freeLiteral(majorKeyLiteral);
Toy_freeLiteral(minorKeyLiteral);
Toy_freeLiteral(patchKeyLiteral);
Toy_freeLiteral(buildKeyLiteral);
Toy_freeLiteral(authorKeyLiteral);
Toy_freeLiteral(majorIdentifierLiteral);
Toy_freeLiteral(minorIdentifierLiteral);
Toy_freeLiteral(patchIdentifierLiteral);
Toy_freeLiteral(buildIdentifierLiteral);
Toy_freeLiteral(authorIdentifierLiteral);
Toy_freeLiteral(majorLiteral);
Toy_freeLiteral(minorLiteral);
Toy_freeLiteral(patchLiteral);
Toy_freeLiteral(buildLiteral);
Toy_freeLiteral(authorLiteral);
return 0;
}
-5
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@@ -1,5 +0,0 @@
#pragma once
#include "toy_interpreter.h"
int Toy_hookToyVersionInfo(Toy_Interpreter* interpreter, Toy_Literal identifier, Toy_Literal alias);
-36
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@@ -1,36 +0,0 @@
CC=gcc
IDIR+=. ../source
CFLAGS+=$(addprefix -I,$(IDIR)) -g -Wall -W -Wno-unused-parameter -Wno-unused-function -Wno-unused-variable
LIBS+=-ltoy -lm
ODIR = obj
SRC = $(wildcard *.c)
OBJ = $(addprefix $(ODIR)/,$(SRC:.c=.o))
OUTNAME=toy
OUT=../$(TOY_OUTDIR)/toyrepl
all: $(OBJ)
ifeq ($(shell uname),Darwin)
cp $(PWD)/$(TOY_OUTDIR)/lib$(OUTNAME).dylib /usr/local/lib/
$(CC) -DTOY_IMPORT $(CFLAGS) -o $(OUT) $(OBJ) $(LIBS)
else
$(CC) -DTOY_IMPORT $(CFLAGS) -o $(OUT) $(OBJ) -Wl,-rpath,. -L$(realpath $(shell pwd)/../$(TOY_OUTDIR)) $(LIBS)
endif
release: all
strip $(OUT)
$(OBJ): | $(ODIR)
$(ODIR):
mkdir $(ODIR)
$(ODIR)/%.o: %.c
$(CC) -c -o $@ $< $(CFLAGS)
.PHONY: clean
clean:
$(RM) $(ODIR)
rm /usr/local/lib/lib$(OUTNAME).dylib
-233
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@@ -1,233 +0,0 @@
#include "repl_tools.h"
#include "drive_system.h"
#include "lib_toy_version_info.h"
#include "lib_standard.h"
#include "lib_random.h"
#include "lib_runner.h"
#include "lib_math.h"
#include "toy_console_colors.h"
#include "toy.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define INPUT_BUFFER_SIZE 2048
void repl(const char* initialInput) {
//repl does it's own thing for now
bool error = false;
char input[INPUT_BUFFER_SIZE];
memset(input, 0, INPUT_BUFFER_SIZE);
Toy_Interpreter interpreter; //persist the interpreter for the scopes
Toy_initInterpreter(&interpreter);
//inject the libs
Toy_injectNativeHook(&interpreter, "toy_version_info", Toy_hookToyVersionInfo);
Toy_injectNativeHook(&interpreter, "standard", Toy_hookStandard);
Toy_injectNativeHook(&interpreter, "random", Toy_hookRandom);
Toy_injectNativeHook(&interpreter, "runner", Toy_hookRunner);
Toy_injectNativeHook(&interpreter, "math", Toy_hookMath);
for(;;) {
if (!initialInput) {
//handle EOF for exits
printf("> ");
if (!fgets(input, INPUT_BUFFER_SIZE, stdin)) {
break;
}
}
//escape the repl (length of 5 to accomodate the newline)
if (strlen(input) == 5 && (!strncmp(input, "exit", 4) || !strncmp(input, "quit", 4))) {
break;
}
//setup this iteration
Toy_Lexer lexer;
Toy_Parser parser;
Toy_Compiler compiler;
Toy_initLexer(&lexer, initialInput ? initialInput : input);
Toy_private_setComments(&lexer, initialInput != NULL); //BUGFIX: disable comments here
Toy_initParser(&parser, &lexer);
Toy_initCompiler(&compiler);
//run this iteration
Toy_ASTNode* node = Toy_scanParser(&parser);
while(node != NULL) {
//pack up and restart
if (node->type == TOY_AST_NODE_ERROR) {
if (Toy_commandLine.verbose) {
printf(TOY_CC_ERROR "Error node detected\n" TOY_CC_RESET);
}
error = true;
Toy_freeASTNode(node);
break;
}
Toy_writeCompiler(&compiler, node);
Toy_freeASTNode(node);
node = Toy_scanParser(&parser);
}
if (!error) {
//get the bytecode dump
size_t size = 0;
unsigned char* tb = Toy_collateCompiler(&compiler, &size);
//run the bytecode
Toy_runInterpreter(&interpreter, tb, size);
}
//clean up this iteration
Toy_freeCompiler(&compiler);
Toy_freeParser(&parser);
error = false;
if (initialInput) {
free((void*)initialInput);
initialInput = NULL;
if (interpreter.panic) {
break;
}
}
}
Toy_freeInterpreter(&interpreter);
}
//entry point
int main(int argc, const char* argv[]) {
Toy_initCommandLine(argc, argv);
//setup the drive system (for filesystem access)
Toy_initDriveSystem();
Toy_setDrivePath("scripts", "scripts");
//command line specific actions
if (Toy_commandLine.error) {
Toy_usageCommandLine(argc, argv);
return 0;
}
if (Toy_commandLine.help) {
Toy_helpCommandLine(argc, argv);
return 0;
}
if (Toy_commandLine.version) {
Toy_copyrightCommandLine(argc, argv);
return 0;
}
//version
if (Toy_commandLine.verbose) {
printf(TOY_CC_NOTICE "Toy Programming Language Version %d.%d.%d, built '%s'\n" TOY_CC_RESET, TOY_VERSION_MAJOR, TOY_VERSION_MINOR, TOY_VERSION_PATCH, TOY_VERSION_BUILD);
}
//run source file
if (Toy_commandLine.sourcefile) {
//only works on toy files
const char* s = strrchr(Toy_commandLine.sourcefile, '.');
if (!s || strcmp(s, ".toy")) {
fprintf(stderr, TOY_CC_ERROR "Bad file extension passed to %s (expected '.toy', found '%s')" TOY_CC_RESET, argv[0], s);
return -1;
}
//run the source file
Toy_runSourceFile(Toy_commandLine.sourcefile);
//lib cleanup
Toy_freeDriveSystem();
return 0;
}
//run from stdin
if (Toy_commandLine.source) {
Toy_runSource(Toy_commandLine.source);
//lib cleanup
Toy_freeDriveSystem();
return 0;
}
//compile source file
if (Toy_commandLine.compilefile && Toy_commandLine.outfile) {
//only works on toy and tb files
const char* c = strrchr(Toy_commandLine.compilefile, '.');
if (!c || strcmp(c, ".toy")) {
fprintf(stderr, TOY_CC_ERROR "Bad file extension passed to %s (expected '.toy', found '%s')" TOY_CC_RESET, argv[0], c);
return -1;
}
const char* o = strrchr(Toy_commandLine.outfile, '.');
if (!o || strcmp(o, ".tb")) {
fprintf(stderr, TOY_CC_ERROR "Bad file extension passed to %s (expected '.tb', found '%s')" TOY_CC_RESET, argv[0], o);
return -1;
}
//compile and save
size_t size = 0;
const char* source = (const char*)Toy_readFile(Toy_commandLine.compilefile, &size);
if (!source) {
return 1;
}
const unsigned char* tb = Toy_compileString(source, &size);
if (!tb) {
return 1;
}
Toy_writeFile(Toy_commandLine.outfile, tb, size);
return 0;
}
//run binary
if (Toy_commandLine.binaryfile) {
//only works on tb files
const char* c = strrchr(Toy_commandLine.binaryfile, '.');
if (!c || strcmp(c, ".tb")) {
fprintf(stderr, TOY_CC_ERROR "Bad file extension passed to %s (expected '.tb', found '%s')" TOY_CC_RESET, argv[0], c); //this one is never seen
return -1;
}
if (Toy_commandLine.parseBytecodeHeader) {
//only parse the bytecode header
Toy_parseBinaryFileHeader(Toy_commandLine.binaryfile);
}
else {
//run the binary file
Toy_runBinaryFile(Toy_commandLine.binaryfile);
}
//lib cleanup
Toy_freeDriveSystem();
return 0;
}
const char* initialSource = NULL;
if (Toy_commandLine.initialfile) {
//only works on toy files
const char* s = strrchr(Toy_commandLine.initialfile, '.');
if (!s || strcmp(s, ".toy")) {
fprintf(stderr, TOY_CC_ERROR "Bad file extension passed to %s (expected '.toy', found '%s')" TOY_CC_RESET, argv[0], s);
return -1;
}
size_t size;
initialSource = (const char*)Toy_readFile(Toy_commandLine.initialfile, &size);
}
repl(initialSource);
//lib cleanup
Toy_freeDriveSystem();
return 0;
}
-209
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@@ -1,209 +0,0 @@
#include "repl_tools.h"
#include "lib_toy_version_info.h"
#include "lib_standard.h"
#include "lib_random.h"
#include "lib_runner.h"
#include "lib_math.h"
#include "toy_console_colors.h"
#include "toy_lexer.h"
#include "toy_parser.h"
#include "toy_compiler.h"
#include "toy_interpreter.h"
#include <stdio.h>
#include <stdlib.h>
//IO functions
const unsigned char* Toy_readFile(const char* path, size_t* fileSize) {
FILE* file = fopen(path, "rb");
if (file == NULL) {
fprintf(stderr, TOY_CC_ERROR "Could not open file \"%s\"\n" TOY_CC_RESET, path);
return NULL;
}
fseek(file, 0L, SEEK_END);
*fileSize = ftell(file);
rewind(file);
unsigned char* buffer = (unsigned char*)malloc(*fileSize + 1);
if (buffer == NULL) {
fprintf(stderr, TOY_CC_ERROR "Not enough memory to read \"%s\"\n" TOY_CC_RESET, path);
return NULL;
}
size_t bytesRead = fread(buffer, sizeof(unsigned char), *fileSize, file);
buffer[*fileSize] = '\0'; //NOTE: fread doesn't append this
if (bytesRead < *fileSize) {
fprintf(stderr, TOY_CC_ERROR "Could not read file \"%s\"\n" TOY_CC_RESET, path);
return NULL;
}
fclose(file);
return buffer;
}
int Toy_writeFile(const char* path, const unsigned char* bytes, size_t size) {
FILE* file = fopen(path, "wb");
if (file == NULL) {
fprintf(stderr, TOY_CC_ERROR "Could not open file \"%s\"\n" TOY_CC_RESET, path);
return -1;
}
size_t written = fwrite(bytes, size, 1, file);
if (written != 1) {
fprintf(stderr, TOY_CC_ERROR "Could not write file \"%s\"\n" TOY_CC_RESET, path);
return -1;
}
fclose(file);
return 0;
}
//repl functions
const unsigned char* Toy_compileString(const char* source, size_t* size) {
Toy_Lexer lexer;
Toy_Parser parser;
Toy_Compiler compiler;
Toy_initLexer(&lexer, source);
Toy_initParser(&parser, &lexer);
Toy_initCompiler(&compiler);
//step 1 - run the parser until the end of the source
Toy_ASTNode* node = Toy_scanParser(&parser);
while(node != NULL) {
//on error, pack up and leave
if (node->type == TOY_AST_NODE_ERROR) {
Toy_freeASTNode(node);
Toy_freeCompiler(&compiler);
Toy_freeParser(&parser);
return NULL;
}
Toy_writeCompiler(&compiler, node);
Toy_freeASTNode(node);
node = Toy_scanParser(&parser);
}
//step 2 - get the bytecode dump
const unsigned char* tb = Toy_collateCompiler(&compiler, size);
//cleanup
Toy_freeCompiler(&compiler);
Toy_freeParser(&parser);
//no lexer to clean up
//finally
return tb;
}
void Toy_runBinary(const unsigned char* tb, size_t size) {
Toy_Interpreter interpreter;
Toy_initInterpreter(&interpreter);
//inject the libs
Toy_injectNativeHook(&interpreter, "toy_version_info", Toy_hookToyVersionInfo);
Toy_injectNativeHook(&interpreter, "standard", Toy_hookStandard);
Toy_injectNativeHook(&interpreter, "random", Toy_hookRandom);
Toy_injectNativeHook(&interpreter, "runner", Toy_hookRunner);
Toy_injectNativeHook(&interpreter, "math", Toy_hookMath);
Toy_runInterpreter(&interpreter, tb, (int)size);
Toy_freeInterpreter(&interpreter);
}
void Toy_runBinaryFile(const char* fname) {
size_t size = 0; //not used
const unsigned char* tb = Toy_readFile(fname, &size);
if (!tb) {
return;
}
Toy_runBinary(tb, size);
//interpreter takes ownership of the binary data
}
void Toy_runSource(const char* source) {
size_t size = 0;
const unsigned char* tb = Toy_compileString(source, &size);
if (!tb) {
return;
}
Toy_runBinary(tb, size);
}
void Toy_runSourceFile(const char* fname) {
size_t size = 0; //not used
const char* source = (const char*)Toy_readFile(fname, &size);
if (!source) {
return;
}
Toy_runSource(source);
free((void*)source);
}
//utils for debugging the header
static unsigned char readByte(const unsigned char* tb, int* count) {
unsigned char ret = *(unsigned char*)(tb + *count);
*count += 1;
return ret;
}
static const char* readString(const unsigned char* tb, int* count) {
const unsigned char* ret = tb + *count;
*count += (int)strlen((char*)ret) + 1; //+1 for null character
return (const char*)ret;
}
void Toy_parseBinaryFileHeader(const char* fname) {
size_t size = 0; //not used
const unsigned char* tb = Toy_readFile(fname, &size);
if (!tb || size < 4) {
return;
}
int count = 0;
//header section
const unsigned char major = readByte(tb, &count);
const unsigned char minor = readByte(tb, &count);
const unsigned char patch = readByte(tb, &count);
const char* build = readString(tb, &count);
printf("Toy Programming Language Interpreter Version %d.%d.%d (interpreter built on %s)\n\n", TOY_VERSION_MAJOR, TOY_VERSION_MINOR, TOY_VERSION_PATCH, TOY_VERSION_BUILD);
printf("Toy Programming Language Bytecode Version ");
//print the output
if (major == TOY_VERSION_MAJOR && minor == TOY_VERSION_MINOR && patch == TOY_VERSION_PATCH) {
printf("%d.%d.%d", major, minor, patch);
}
else {
printf(TOY_CC_FONT_YELLOW TOY_CC_BACK_BLACK "%d.%d.%d" TOY_CC_RESET, major, minor, patch);
}
printf(" (interpreter built on ");
if (strncmp(build, TOY_VERSION_BUILD, strlen(TOY_VERSION_BUILD)) == 0) {
printf("%s", build);
}
else {
printf(TOY_CC_FONT_YELLOW TOY_CC_BACK_BLACK "%s" TOY_CC_RESET, build);
}
printf(")\n");
//cleanup
free((void*)tb);
}
-84
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@@ -1,84 +0,0 @@
#pragma once
/*!
# repl_tools.h
This header provides a number of tools for compiling and running Toy, and is used primarily by the repl. However, it can also be modified and used by any host program with a little effort.
This is not a core part of Toy or a library, and as such `repl_tools.h` and `repl_tools.c` can both be found in the `repl/` folder.
!*/
#include "toy_common.h"
/*!
## Defined Functions
!*/
/*!
### const char* Toy_readFile(const char* path, size_t* fileSize)
This function reads in a file, and returns it as a constant buffer. It also sets the variable pointed to by `fileSize` to the size of the given buffer.
On error, this function returns `NULL`.
!*/
const unsigned char* Toy_readFile(const char* path, size_t* fileSize);
/*!
### int Toy_writeFile(const char* path, const unsigned char* bytes, size_t size)
This function writes the buffer pointed to by `bytes` to a file specified by `path`. The buffer's size should be specified by `size`.
On error, this function returns a non-zero value.
!*/
int Toy_writeFile(const char* path, const unsigned char* bytes, size_t size);
/*!
### const unsigned char* Toy_compileString(const char* source, size_t* size)
This function takes a cstring of Toy source code, and returns a compiled buffer based on that source code. The variable pointed to by `size` is set to the size of the bytecode.
On error, this function returns `NULL`.
!*/
const unsigned char* Toy_compileString(const char* source, size_t* size);
/*!
### void Toy_runBinary(const unsigned char* tb, size_t size)
This function takes a bytecode array of `size` size, and executes it. The libraries available to the code are currently:
* lib_toy_version_info
* lib_standard
* lib_random
* lib_runner
!*/
void Toy_runBinary(const unsigned char* tb, size_t size);
/*!
### void Toy_runBinaryFile(const char* fname)
This function loads in the binary file specified by `fname`, and passes it to `Toy_runBinary()`.
!*/
void Toy_runBinaryFile(const char* fname);
/*!
### void Toy_runSource(const char* source)
This function compiles the source with `Toy_compileString()`, and passes it to `Toy_runBinary()`.
!*/
void Toy_runSource(const char* source);
/*!
### void Toy_runSourceFile(const char* fname)
This function loads in the file specified by `fname`, compiles it, and passes it to `Toy_runBinary()`.
!*/
void Toy_runSourceFile(const char* fname);
/*!
### void Toy_parseBinaryFileHeader(const char* fname)
This function parses the header information stored within the bytecode file `fname`.
This is only used for debugging and validation purposes.
!*/
void Toy_parseBinaryFileHeader(const char* fname);
+16
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@@ -0,0 +1,16 @@
<?xml version="1.0" standalone="no"?>
<!DOCTYPE svg PUBLIC "-//W3C//DTD SVG 20010904//EN"
"http://www.w3.org/TR/2001/REC-SVG-20010904/DTD/svg10.dtd">
<svg version="1.0" xmlns="http://www.w3.org/2000/svg"
width="454.000000pt" height="454.000000pt" viewBox="0 0 454.000000 454.000000"
preserveAspectRatio="xMidYMid meet">
<metadata>
Created by potrace 1.14, written by Peter Selinger 2001-2017
</metadata>
<g transform="translate(0.000000,454.000000) scale(0.100000,-0.100000)"
fill="#000000" stroke="none">
<path d="M1178 4533 c-3 -5 -4 -508 -3 -1118 l0 -1111 -565 0 -565 0 -3 -1152
-2 -1152 2230 0 2230 0 -2 1152 -3 1152 -522 0 c-359 0 -523 3 -524 10 0 6 0
509 0 1119 l-1 1107 -1133 0 c-624 0 -1135 -3 -1137 -7z"/>
</g>
</svg>

After

Width:  |  Height:  |  Size: 730 B

-21
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@@ -1,21 +0,0 @@
//memoize the fib function
var memo: [int : int] = [:];
fn fib(n : int) {
if (n < 2) {
return n;
}
var result = memo[n];
if (result == null) {
result = fib(n-1) + fib(n-2);
memo[n] = result;
}
return result;
}
for (var i = 0; i < 40; i++) {
var res = fib(i);
print string i + ": " + string res;
}
-10
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@@ -1,10 +0,0 @@
//WARNING: please think twice before using this in a test
fn fib(n : int) {
if (n < 2) return n;
return fib(n-1) + fib(n-2);
}
for (var i = 0; i <= 35; i++) {
var res = fib(i);
print string i + ": " + string res;
}
-90
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@@ -1,90 +0,0 @@
/*
How to run this program:
toyrepl -n -t scripts/level.toy
How to move around:
move(up);
move(down);
move(left);
move(right);
*/
//constants
var WIDTH: int const = 12;
var HEIGHT: int const = 12;
//WIDTH * HEIGHT in size
var tiles: [[int]] const = [
[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1],
[1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1],
[1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1],
[1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1],
[1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1],
[1, 0, 1, 1, 0, 0, 0, 0, 1, 1, 0, 1],
[1, 0, 1, 1, 0, 0, 0, 0, 1, 1, 0, 1],
[1, 0, 0, 0, 0, 0, 0, 0, 1, 1, 0, 1],
[1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 1],
[1, 0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 1],
[1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1],
[1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] //BUG: map is twisted along this diagonal
];
var tileset: [int: string] const = [
0: " ",
1: "X "
];
//variables
var posX: int = 4;
var posY: int = 4;
//functions
fn draw() {
for (var j: int = 0; j < HEIGHT; j++) {
for (var i: int = 0; i < WIDTH; i++) {
//draw the player pos
if (i == posX && j == posY) {
print "O ";
continue;
}
print tileset[ tiles[i][j] ];
}
print "\n";
}
print "\n";
}
fn moveRelative(xrel: int, yrel: int) {
if (xrel > 1 || xrel < -1 || yrel > 1 || yrel < -1 || (xrel != 0 && yrel != 0)) {
print "too fast!\n";
return;
}
if (tiles[posX + xrel][posY + yrel] > 0) {
print "Can't move that way\n";
return;
}
posX += xrel;
posY += yrel;
draw();
}
//wrap for easy use
var up: [int] const = [0, -1];
var down: [int] const = [0, 1];
var left: [int] const = [-1, 0];
var right: [int] const = [1, 0];
fn move(dir: [int] const) {
return moveRelative(dir[0], dir[1]);
}
//initial display
move([0, 0]);
-36
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@@ -1,36 +0,0 @@
/*
Since this is a pseudo-random generator, and there's no internal state to the algorithm other
than the generator opaque, there needs to be a "call counter" (current depth) to shuffle the
initial seeds, otherwise generators created from other generators will resemble their parents,
but one call greater.
*/
import standard;
import random;
var DEPTH: int const = 20;
var levels = [];
//generate the level seeds
var generator: opaque = createRandomGenerator(clock().hash());
for (var i: int = 0; i < DEPTH; i++) {
levels.push(generator.generateRandomNumber());
}
generator.freeRandomGenerator();
//generate "levels" of a roguelike
for (var i = 0; i < DEPTH; i++) {
var rng: opaque = createRandomGenerator(levels[i] + i);
print "---";
print levels[i];
print rng.generateRandomNumber();
print rng.generateRandomNumber();
print rng.generateRandomNumber();
rng.freeRandomGenerator();
}
-49
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@@ -1,49 +0,0 @@
//number of iterations
var SIZE: int const = 100;
//lookup table
var lookup = [
"*": [
"*": [
"*": " ",
" ": "*"
],
" ": [
"*": "*",
" ": " "
]
], " ": [
"*": [
"*": "*",
" ": "*"
],
" ": [
"*": "*",
" ": " "
]
]];
//initial line to build from
var prev: string = "";
for (var i = 0; i < SIZE -1; i++) {
prev += " ";
}
prev += "*"; //initial
print prev;
//run
for (var iteration = 0; iteration < SIZE -1; iteration++) {
//left
var output = (lookup[" "][prev[0]][prev[1]]);
//middle
for (var i = 1; i < SIZE-1; i++) {
output += (lookup[prev[i-1]][prev[i]][prev[i+1]]);
}
//right
output += (lookup[prev[SIZE-2]][prev[SIZE-1]][" "]);
print output;
prev = output;
}
-13
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@@ -1,13 +0,0 @@
fn f() {
//
}
fn g() {
fn i() {
//
}
}
fn h() {
//
}
+19
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@@ -0,0 +1,19 @@
{
"name": "",
"short_name": "",
"icons": [
{
"src": "/android-chrome-192x192.png",
"sizes": "192x192",
"type": "image/png"
},
{
"src": "/android-chrome-384x384.png",
"sizes": "384x384",
"type": "image/png"
}
],
"theme_color": "#ffffff",
"background_color": "#ffffff",
"display": "standalone"
}
-54
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@@ -1,54 +0,0 @@
CC=gcc
IDIR+=.
CFLAGS+=$(addprefix -I,$(IDIR)) -g -Wall -W -Wno-unused-parameter -Wno-unused-function -Wno-unused-variable
LIBS+=
ODIR = obj
SRC = $(wildcard *.c)
OBJ = $(addprefix $(ODIR)/,$(SRC:.c=.o))
OUTNAME=toy
ifeq ($(findstring CYGWIN, $(shell uname)),CYGWIN)
LIBLINE=-Wl,-rpath,. -Wl,--out-implib=../$(TOY_OUTDIR)/lib$(OUTNAME).dll.a -Wl,--export-all-symbols -Wl,--enable-auto-import -Wl,--whole-archive $(OBJ) -Wl,--no-whole-archive
OUT=../$(TOY_OUTDIR)/$(OUTNAME).dll
else ifeq ($(shell uname),Linux)
LIBLINE=-Wl,-rpath,. -Wl,--out-implib=../$(TOY_OUTDIR)/lib$(OUTNAME).a -Wl,--whole-archive $(OBJ) -Wl,--no-whole-archive
OUT=../$(TOY_OUTDIR)/lib$(OUTNAME).so
CFLAGS += -fPIC
else ifeq ($(OS),Windows_NT)
LIBLINE=-Wl,-rpath,. -Wl,--out-implib=../$(TOY_OUTDIR)/lib$(OUTNAME).dll.a -Wl,--export-all-symbols -Wl,--enable-auto-import -Wl,--whole-archive $(OBJ) -Wl,--no-whole-archive
OUT=../$(TOY_OUTDIR)/$(OUTNAME).dll
else ifeq ($(shell uname),Darwin)
LIBLINE = $(OBJ)
OUT=../$(TOY_OUTDIR)/lib$(OUTNAME).dylib
else
@echo "Platform test failed - what platform is this?"
exit 1
endif
library: $(OBJ)
$(CC) -DTOY_EXPORT $(CFLAGS) -shared -o $(OUT) $(LIBLINE)
static: $(OBJ)
ar crs ../$(TOY_OUTDIR)/lib$(OUTNAME).a $(OBJ)
library-release: $(OBJ) library
strip $(OUT)
static-release: $(OBJ) static
strip -d ../$(TOY_OUTDIR)/lib$(OUTNAME).a
$(OBJ): | $(ODIR)
$(ODIR):
mkdir $(ODIR)
$(ODIR)/%.o: %.c
$(CC) -c -o $@ $< $(CFLAGS)
.PHONY: clean
clean:
$(RM) $(ODIR)
-87
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@@ -1,87 +0,0 @@
#pragma once
/*!
# toy.h - A Toy Programming Language
If you're looking how to use Toy directly, try https://toylang.com/
Otherwise, this header may help learn how Toy works internally.
!*/
/*!
## Utilities
These headers define a bunch of useful macros, based on what platform you build for.
The most important macro is `TOY_API`, which specifies functions intended for the end user.
* [toy_common.h](toy_common_h.md)
* [toy_console_colors.h](toy_console_colors_h.md)
* [toy_memory.h](toy_memory_h.md)
!*/
#include "toy_common.h"
#include "toy_console_colors.h"
#include "toy_memory.h"
/*!
## Core Pipeline
From source to execution, each step is as follows:
```
source -> lexer -> token
token -> parser -> AST
AST -> compiler -> bytecode
bytecode -> interpreter -> result
```
I should note that the parser -> compiler phase is actually made up of two steps - the write step and the collate step. See `Toy_compileString()` in `repl/repl_tools.c` for an example of how to compile properly.
* [toy_lexer.h](toy_lexer_h.md)
* [toy_parser.h](toy_parser_h.md)
* [toy_compiler.h](toy_compiler_h.md)
* [toy_interpreter.h](toy_interpreter_h.md)
!*/
#include "toy_lexer.h"
#include "toy_parser.h"
#include "toy_compiler.h"
#include "toy_interpreter.h"
/*!
## Building Block Structures
Literals represent any value within the language, including some internal ones that you never see.
Literal arrays are contiguous arrays within memory, and are the most heavily used structure in Toy.
Literal dictionaries are unordered key-value hashmaps, that use a running strategy for collisions.
* [toy_literal.h](toy_literal_h.md)
* [toy_literal_array.h](toy_literal_array_h.md)
* [toy_literal_dictionary.h](toy_literal_dictionary_h.md)
!*/
#include "toy_literal.h"
#include "toy_literal_array.h"
#include "toy_literal_dictionary.h"
/*!
## Other Components
You probably won't use these directly, but they're a good learning opportunity.
`Toy_Scope` holds the variables of a specific scope within Toy - be it a script, a function, a block, etc. Scopes are also where the type system lives at runtime. They use identifier literals as keys, exclusively.
`Toy_RefString` is a utility class that wraps traditional C strings, making them less memory intensive and faster to copy and move. In reality, since strings are considered immutable, multiple variables can point to the same string to save memory, and you can just create a new one of these vars pointing to the original rather than copying entirely for a speed boost. This module has it's own memory allocator system that is plugged into the main memory allocator.
`Toy_RefFunction` acts similarly to `Toy_RefString`, but instead operates on function bytecode.
* [toy_scope.h](toy_scope_h.md)
* [toy_refstring.h](toy_refstring_h.md)
* [toy_reffunction.h](toy_reffunction_h.md)
!*/
#include "toy_scope.h"
#include "toy_refstring.h"
#include "toy_reffunction.h"
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#include "toy_ast_node.h"
#include "toy_memory.h"
#include <stdio.h>
#include <stdlib.h>
static void freeASTNodeCustom(Toy_ASTNode* node, bool freeSelf) {
//don't free a NULL node
if (node == NULL) {
return;
}
switch(node->type) {
case TOY_AST_NODE_ERROR:
//NO-OP
break;
case TOY_AST_NODE_LITERAL:
Toy_freeLiteral(node->atomic.literal);
break;
case TOY_AST_NODE_UNARY:
Toy_freeASTNode(node->unary.child);
break;
case TOY_AST_NODE_BINARY:
Toy_freeASTNode(node->binary.left);
Toy_freeASTNode(node->binary.right);
break;
case TOY_AST_NODE_TERNARY:
Toy_freeASTNode(node->ternary.condition);
Toy_freeASTNode(node->ternary.thenPath);
Toy_freeASTNode(node->ternary.elsePath);
break;
case TOY_AST_NODE_GROUPING:
Toy_freeASTNode(node->grouping.child);
break;
case TOY_AST_NODE_BLOCK:
if (node->block.capacity > 0) {
for (int i = 0; i < node->block.count; i++) {
freeASTNodeCustom(node->block.nodes + i, false);
}
TOY_FREE_ARRAY(Toy_ASTNode, node->block.nodes, node->block.capacity);
}
break;
case TOY_AST_NODE_COMPOUND:
if (node->compound.capacity > 0) {
for (int i = 0; i < node->compound.count; i++) {
freeASTNodeCustom(node->compound.nodes + i, false);
}
TOY_FREE_ARRAY(Toy_ASTNode, node->compound.nodes, node->compound.capacity);
}
break;
case TOY_AST_NODE_PAIR:
Toy_freeASTNode(node->pair.left);
Toy_freeASTNode(node->pair.right);
break;
case TOY_AST_NODE_INDEX:
Toy_freeASTNode(node->index.first);
Toy_freeASTNode(node->index.second);
Toy_freeASTNode(node->index.third);
break;
case TOY_AST_NODE_VAR_DECL:
Toy_freeLiteral(node->varDecl.identifier);
Toy_freeLiteral(node->varDecl.typeLiteral);
Toy_freeASTNode(node->varDecl.expression);
break;
case TOY_AST_NODE_FN_COLLECTION:
if (node->fnCollection.capacity > 0) {
for (int i = 0; i < node->fnCollection.count; i++) {
freeASTNodeCustom(node->fnCollection.nodes + i, false);
}
TOY_FREE_ARRAY(Toy_ASTNode, node->fnCollection.nodes, node->fnCollection.capacity);
}
break;
case TOY_AST_NODE_FN_DECL:
Toy_freeLiteral(node->fnDecl.identifier);
Toy_freeASTNode(node->fnDecl.arguments);
Toy_freeASTNode(node->fnDecl.returns);
Toy_freeASTNode(node->fnDecl.block);
break;
case TOY_AST_NODE_FN_CALL:
Toy_freeASTNode(node->fnCall.arguments);
break;
case TOY_AST_NODE_FN_RETURN:
Toy_freeASTNode(node->returns.returns);
break;
case TOY_AST_NODE_IF:
Toy_freeASTNode(node->pathIf.condition);
Toy_freeASTNode(node->pathIf.thenPath);
Toy_freeASTNode(node->pathIf.elsePath);
break;
case TOY_AST_NODE_WHILE:
Toy_freeASTNode(node->pathWhile.condition);
Toy_freeASTNode(node->pathWhile.thenPath);
break;
case TOY_AST_NODE_FOR:
Toy_freeASTNode(node->pathFor.preClause);
Toy_freeASTNode(node->pathFor.postClause);
Toy_freeASTNode(node->pathFor.condition);
Toy_freeASTNode(node->pathFor.thenPath);
break;
case TOY_AST_NODE_BREAK:
//NO-OP
break;
case TOY_AST_NODE_CONTINUE:
//NO-OP
break;
case TOY_AST_NODE_AND:
Toy_freeASTNode(node->pathAnd.left);
Toy_freeASTNode(node->pathAnd.right);
break;
case TOY_AST_NODE_OR:
Toy_freeASTNode(node->pathOr.left);
Toy_freeASTNode(node->pathOr.right);
break;
case TOY_AST_NODE_PREFIX_INCREMENT:
Toy_freeLiteral(node->prefixIncrement.identifier);
break;
case TOY_AST_NODE_PREFIX_DECREMENT:
Toy_freeLiteral(node->prefixDecrement.identifier);
break;
case TOY_AST_NODE_POSTFIX_INCREMENT:
Toy_freeLiteral(node->postfixIncrement.identifier);
break;
case TOY_AST_NODE_POSTFIX_DECREMENT:
Toy_freeLiteral(node->postfixDecrement.identifier);
break;
case TOY_AST_NODE_IMPORT:
Toy_freeLiteral(node->import.identifier);
Toy_freeLiteral(node->import.alias);
break;
case TOY_AST_NODE_PASS:
//EMPTY
break;
}
if (freeSelf) {
TOY_FREE(Toy_ASTNode, node);
}
}
void Toy_freeASTNode(Toy_ASTNode* node) {
freeASTNodeCustom(node, true);
}
//various emitters
void Toy_emitASTNodeLiteral(Toy_ASTNode** nodeHandle, Toy_Literal literal) {
//allocate a new node
*nodeHandle = TOY_ALLOCATE(Toy_ASTNode, 1);
(*nodeHandle)->type = TOY_AST_NODE_LITERAL;
(*nodeHandle)->atomic.literal = Toy_copyLiteral(literal);
}
void Toy_emitASTNodeUnary(Toy_ASTNode** nodeHandle, Toy_Opcode opcode, Toy_ASTNode* child) {
//allocate a new node
*nodeHandle = TOY_ALLOCATE(Toy_ASTNode, 1);
(*nodeHandle)->type = TOY_AST_NODE_UNARY;
(*nodeHandle)->unary.opcode = opcode;
(*nodeHandle)->unary.child = child;
}
void Toy_emitASTNodeBinary(Toy_ASTNode** nodeHandle, Toy_ASTNode* rhs, Toy_Opcode opcode) {
Toy_ASTNode* tmp = TOY_ALLOCATE(Toy_ASTNode, 1);
tmp->type = TOY_AST_NODE_BINARY;
tmp->binary.opcode = opcode;
tmp->binary.left = *nodeHandle;
tmp->binary.right = rhs;
*nodeHandle = tmp;
}
void Toy_emitASTNodeTernary(Toy_ASTNode** nodeHandle, Toy_ASTNode* condition, Toy_ASTNode* thenPath, Toy_ASTNode* elsePath) {
Toy_ASTNode* tmp = TOY_ALLOCATE(Toy_ASTNode, 1);
tmp->type = TOY_AST_NODE_TERNARY;
tmp->ternary.condition = condition;
tmp->ternary.thenPath = thenPath;
tmp->ternary.elsePath = elsePath;
*nodeHandle = tmp;
}
void Toy_emitASTNodeGrouping(Toy_ASTNode** nodeHandle) {
Toy_ASTNode* tmp = TOY_ALLOCATE(Toy_ASTNode, 1);
tmp->type = TOY_AST_NODE_GROUPING;
tmp->grouping.child = *nodeHandle;
*nodeHandle = tmp;
}
void Toy_emitASTNodeBlock(Toy_ASTNode** nodeHandle) {
Toy_ASTNode* tmp = TOY_ALLOCATE(Toy_ASTNode, 1);
tmp->type = TOY_AST_NODE_BLOCK;
tmp->block.nodes = NULL; //NOTE: appended by the parser
tmp->block.capacity = 0;
tmp->block.count = 0;
*nodeHandle = tmp;
}
void Toy_emitASTNodeCompound(Toy_ASTNode** nodeHandle, Toy_LiteralType literalType) {
Toy_ASTNode* tmp = TOY_ALLOCATE(Toy_ASTNode, 1);
tmp->type = TOY_AST_NODE_COMPOUND;
tmp->compound.literalType = literalType;
tmp->compound.nodes = NULL;
tmp->compound.capacity = 0;
tmp->compound.count = 0;
*nodeHandle = tmp;
}
void Toy_setASTNodePair(Toy_ASTNode* node, Toy_ASTNode* left, Toy_ASTNode* right) {
//set - assume the node has already been allocated
node->type = TOY_AST_NODE_PAIR;
node->pair.left = left;
node->pair.right = right;
}
void Toy_emitASTNodeIndex(Toy_ASTNode** nodeHandle, Toy_ASTNode* first, Toy_ASTNode* second, Toy_ASTNode* third) {
Toy_ASTNode* tmp = TOY_ALLOCATE(Toy_ASTNode, 1);
tmp->type = TOY_AST_NODE_INDEX;
tmp->index.first = first;
tmp->index.second = second;
tmp->index.third = third;
*nodeHandle = tmp;
}
void Toy_emitASTNodeVarDecl(Toy_ASTNode** nodeHandle, Toy_Literal identifier, Toy_Literal typeLiteral, Toy_ASTNode* expression) {
Toy_ASTNode* tmp = TOY_ALLOCATE(Toy_ASTNode, 1);
tmp->type = TOY_AST_NODE_VAR_DECL;
tmp->varDecl.identifier = identifier;
tmp->varDecl.typeLiteral = typeLiteral;
tmp->varDecl.expression = expression;
*nodeHandle = tmp;
}
void Toy_emitASTNodeFnCollection(Toy_ASTNode** nodeHandle) { //a collection of nodes, intended for use with functions
Toy_ASTNode* tmp = TOY_ALLOCATE(Toy_ASTNode, 1);
tmp->type = TOY_AST_NODE_FN_COLLECTION;
tmp->fnCollection.nodes = NULL;
tmp->fnCollection.capacity = 0;
tmp->fnCollection.count = 0;
*nodeHandle = tmp;
}
void Toy_emitASTNodeFnDecl(Toy_ASTNode** nodeHandle, Toy_Literal identifier, Toy_ASTNode* arguments, Toy_ASTNode* returns, Toy_ASTNode* block) {
Toy_ASTNode* tmp = TOY_ALLOCATE(Toy_ASTNode, 1);
tmp->type = TOY_AST_NODE_FN_DECL;
tmp->fnDecl.identifier = identifier;
tmp->fnDecl.arguments = arguments;
tmp->fnDecl.returns = returns;
tmp->fnDecl.block = block;
*nodeHandle = tmp;
}
void Toy_emitASTNodeFnCall(Toy_ASTNode** nodeHandle, Toy_ASTNode* arguments) {
Toy_ASTNode* tmp = TOY_ALLOCATE(Toy_ASTNode, 1);
tmp->type = TOY_AST_NODE_FN_CALL;
tmp->fnCall.arguments = arguments;
tmp->fnCall.argumentCount = arguments->fnCollection.count;
*nodeHandle = tmp;
}
void Toy_emitASTNodeFnReturn(Toy_ASTNode** nodeHandle, Toy_ASTNode* returns) {
Toy_ASTNode* tmp = TOY_ALLOCATE(Toy_ASTNode, 1);
tmp->type = TOY_AST_NODE_FN_RETURN;
tmp->returns.returns = returns;
*nodeHandle = tmp;
}
void Toy_emitASTNodeIf(Toy_ASTNode** nodeHandle, Toy_ASTNode* condition, Toy_ASTNode* thenPath, Toy_ASTNode* elsePath) {
Toy_ASTNode* tmp = TOY_ALLOCATE(Toy_ASTNode, 1);
tmp->type = TOY_AST_NODE_IF;
tmp->pathIf.condition = condition;
tmp->pathIf.thenPath = thenPath;
tmp->pathIf.elsePath = elsePath;
*nodeHandle = tmp;
}
void Toy_emitASTNodeWhile(Toy_ASTNode** nodeHandle, Toy_ASTNode* condition, Toy_ASTNode* thenPath) {
Toy_ASTNode* tmp = TOY_ALLOCATE(Toy_ASTNode, 1);
tmp->type = TOY_AST_NODE_WHILE;
tmp->pathWhile.condition = condition;
tmp->pathWhile.thenPath = thenPath;
*nodeHandle = tmp;
}
void Toy_emitASTNodeFor(Toy_ASTNode** nodeHandle, Toy_ASTNode* preClause, Toy_ASTNode* condition, Toy_ASTNode* postClause, Toy_ASTNode* thenPath) {
Toy_ASTNode* tmp = TOY_ALLOCATE(Toy_ASTNode, 1);
tmp->type = TOY_AST_NODE_FOR;
tmp->pathFor.preClause = preClause;
tmp->pathFor.condition = condition;
tmp->pathFor.postClause = postClause;
tmp->pathFor.thenPath = thenPath;
*nodeHandle = tmp;
}
void Toy_emitASTNodeBreak(Toy_ASTNode** nodeHandle) {
Toy_ASTNode* tmp = TOY_ALLOCATE(Toy_ASTNode, 1);
tmp->type = TOY_AST_NODE_BREAK;
*nodeHandle = tmp;
}
void Toy_emitASTNodeContinue(Toy_ASTNode** nodeHandle) {
Toy_ASTNode* tmp = TOY_ALLOCATE(Toy_ASTNode, 1);
tmp->type = TOY_AST_NODE_CONTINUE;
*nodeHandle = tmp;
}
void Toy_emitASTNodeAnd(Toy_ASTNode** nodeHandle, Toy_ASTNode* rhs) {
Toy_ASTNode* tmp = TOY_ALLOCATE(Toy_ASTNode, 1);
tmp->type = TOY_AST_NODE_AND;
tmp->pathAnd.left = *nodeHandle;
tmp->pathAnd.right = rhs;
*nodeHandle = tmp;
}
void Toy_emitASTNodeOr(Toy_ASTNode** nodeHandle, Toy_ASTNode* rhs) {
Toy_ASTNode* tmp = TOY_ALLOCATE(Toy_ASTNode, 1);
tmp->type = TOY_AST_NODE_OR;
tmp->pathOr.left = *nodeHandle;
tmp->pathOr.right = rhs;
*nodeHandle = tmp;
}
void Toy_emitASTNodePrefixIncrement(Toy_ASTNode** nodeHandle, Toy_Literal identifier) {
Toy_ASTNode* tmp = TOY_ALLOCATE(Toy_ASTNode, 1);
tmp->type = TOY_AST_NODE_PREFIX_INCREMENT;
tmp->prefixIncrement.identifier = Toy_copyLiteral(identifier);
*nodeHandle = tmp;
}
void Toy_emitASTNodePrefixDecrement(Toy_ASTNode** nodeHandle, Toy_Literal identifier) {
Toy_ASTNode* tmp = TOY_ALLOCATE(Toy_ASTNode, 1);
tmp->type = TOY_AST_NODE_PREFIX_DECREMENT;
tmp->prefixDecrement.identifier = Toy_copyLiteral(identifier);
*nodeHandle = tmp;
}
void Toy_emitASTNodePostfixIncrement(Toy_ASTNode** nodeHandle, Toy_Literal identifier) {
Toy_ASTNode* tmp = TOY_ALLOCATE(Toy_ASTNode, 1);
tmp->type = TOY_AST_NODE_POSTFIX_INCREMENT;
tmp->postfixIncrement.identifier = Toy_copyLiteral(identifier);
*nodeHandle = tmp;
}
void Toy_emitASTNodePostfixDecrement(Toy_ASTNode** nodeHandle, Toy_Literal identifier) {
Toy_ASTNode* tmp = TOY_ALLOCATE(Toy_ASTNode, 1);
tmp->type = TOY_AST_NODE_POSTFIX_DECREMENT;
tmp->postfixDecrement.identifier = Toy_copyLiteral(identifier);
*nodeHandle = tmp;
}
void Toy_emitASTNodeImport(Toy_ASTNode** nodeHandle, Toy_Literal identifier, Toy_Literal alias) {
Toy_ASTNode* tmp = TOY_ALLOCATE(Toy_ASTNode, 1);
tmp->type = TOY_AST_NODE_IMPORT;
tmp->import.identifier = Toy_copyLiteral(identifier);
tmp->import.alias = Toy_copyLiteral(alias);
*nodeHandle = tmp;
}
void Toy_emitASTNodePass(Toy_ASTNode** nodeHandle) {
Toy_ASTNode* tmp = TOY_ALLOCATE(Toy_ASTNode, 1);
tmp->type = TOY_AST_NODE_PASS;
*nodeHandle = tmp;
}
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#pragma once
#include "toy_common.h"
#include "toy_literal.h"
#include "toy_opcodes.h"
#include "toy_token_types.h"
//nodes are the intermediaries between parsers and compilers
typedef union Toy_private_node Toy_ASTNode;
typedef enum Toy_ASTNodeType {
TOY_AST_NODE_ERROR,
TOY_AST_NODE_LITERAL, //a simple value
TOY_AST_NODE_UNARY, //one child + opcode
TOY_AST_NODE_BINARY, //two children, left and right + opcode
TOY_AST_NODE_TERNARY, //three children, condition, then path & else path
TOY_AST_NODE_GROUPING, //one child
TOY_AST_NODE_BLOCK, //contains a sub-node array
TOY_AST_NODE_COMPOUND, //contains a sub-node array
TOY_AST_NODE_PAIR, //contains a left and right
TOY_AST_NODE_INDEX, //index a variable
TOY_AST_NODE_VAR_DECL, //contains identifier literal, typenode, expression definition
TOY_AST_NODE_FN_DECL, //containd identifier literal, arguments node, returns node, block node
TOY_AST_NODE_FN_COLLECTION, //parts of a function
TOY_AST_NODE_FN_CALL, //call a function
TOY_AST_NODE_FN_RETURN, //for control flow
TOY_AST_NODE_IF, //for control flow
TOY_AST_NODE_WHILE, //for control flow
TOY_AST_NODE_FOR, //for control flow
TOY_AST_NODE_BREAK, //for control flow
TOY_AST_NODE_CONTINUE, //for control flow
TOY_AST_NODE_AND, //for control flow
TOY_AST_NODE_OR, //for control flow
TOY_AST_NODE_PREFIX_INCREMENT, //increment a variable
TOY_AST_NODE_POSTFIX_INCREMENT, //increment a variable
TOY_AST_NODE_PREFIX_DECREMENT, //decrement a variable
TOY_AST_NODE_POSTFIX_DECREMENT, //decrement a variable
TOY_AST_NODE_IMPORT, //import a library
TOY_AST_NODE_PASS, //for doing nothing
} Toy_ASTNodeType;
//literals
void Toy_emitASTNodeLiteral(Toy_ASTNode** nodeHandle, Toy_Literal literal);
typedef struct Toy_NodeLiteral {
Toy_ASTNodeType type;
Toy_Literal literal;
} Toy_NodeLiteral;
//unary operator
void Toy_emitASTNodeUnary(Toy_ASTNode** nodeHandle, Toy_Opcode opcode, Toy_ASTNode* child);
typedef struct Toy_NodeUnary {
Toy_ASTNodeType type;
Toy_Opcode opcode;
Toy_ASTNode* child;
} Toy_NodeUnary;
//binary operator
void Toy_emitASTNodeBinary(Toy_ASTNode** nodeHandle, Toy_ASTNode* rhs, Toy_Opcode opcode); //handled node becomes lhs
typedef struct Toy_NodeBinary {
Toy_ASTNodeType type;
Toy_Opcode opcode;
Toy_ASTNode* left;
Toy_ASTNode* right;
} Toy_NodeBinary;
//ternary operator
void Toy_emitASTNodeTernary(Toy_ASTNode** nodeHandle, Toy_ASTNode* condition, Toy_ASTNode* thenPath, Toy_ASTNode* elsePath);
typedef struct Toy_NodeTernary {
Toy_ASTNodeType type;
Toy_ASTNode* condition;
Toy_ASTNode* thenPath;
Toy_ASTNode* elsePath;
} Toy_NodeTernary;
//grouping of other AST nodes
void Toy_emitASTNodeGrouping(Toy_ASTNode** nodeHandle);
typedef struct Toy_NodeGrouping {
Toy_ASTNodeType type;
Toy_ASTNode* child;
} Toy_NodeGrouping;
//block of statement nodes
void Toy_emitASTNodeBlock(Toy_ASTNode** nodeHandle);
typedef struct Toy_NodeBlock {
Toy_ASTNodeType type;
Toy_ASTNode* nodes;
int capacity;
int count;
} Toy_NodeBlock;
//compound literals (array, dictionary)
void Toy_emitASTNodeCompound(Toy_ASTNode** nodeHandle, Toy_LiteralType literalType);
typedef struct Toy_NodeCompound {
Toy_ASTNodeType type;
Toy_LiteralType literalType;
Toy_ASTNode* nodes;
int capacity;
int count;
} Toy_NodeCompound;
void Toy_setASTNodePair(Toy_ASTNode* node, Toy_ASTNode* left, Toy_ASTNode* right); //NOTE: this is a set function, not an emit function
typedef struct Toy_NodePair {
Toy_ASTNodeType type;
Toy_ASTNode* left;
Toy_ASTNode* right;
} Toy_NodePair;
void Toy_emitASTNodeIndex(Toy_ASTNode** nodeHandle, Toy_ASTNode* first, Toy_ASTNode* second, Toy_ASTNode* third);
typedef struct Toy_NodeIndex {
Toy_ASTNodeType type;
Toy_ASTNode* first;
Toy_ASTNode* second;
Toy_ASTNode* third;
} Toy_NodeIndex;
//variable declaration
void Toy_emitASTNodeVarDecl(Toy_ASTNode** nodeHandle, Toy_Literal identifier, Toy_Literal type, Toy_ASTNode* expression);
typedef struct Toy_NodeVarDecl {
Toy_ASTNodeType type;
Toy_Literal identifier;
Toy_Literal typeLiteral;
Toy_ASTNode* expression;
} Toy_NodeVarDecl;
//NOTE: fnCollection is used by fnDecl, fnCall and fnReturn
void Toy_emitASTNodeFnCollection(Toy_ASTNode** nodeHandle);
typedef struct Toy_NodeFnCollection {
Toy_ASTNodeType type;
Toy_ASTNode* nodes;
int capacity;
int count;
} Toy_NodeFnCollection;
//function declaration
void Toy_emitASTNodeFnDecl(Toy_ASTNode** nodeHandle, Toy_Literal identifier, Toy_ASTNode* arguments, Toy_ASTNode* returns, Toy_ASTNode* block);
typedef struct Toy_NodeFnDecl {
Toy_ASTNodeType type;
Toy_Literal identifier;
Toy_ASTNode* arguments;
Toy_ASTNode* returns;
Toy_ASTNode* block;
} Toy_NodeFnDecl;
//function call
void Toy_emitASTNodeFnCall(Toy_ASTNode** nodeHandle, Toy_ASTNode* arguments);
typedef struct Toy_NodeFnCall {
Toy_ASTNodeType type;
Toy_ASTNode* arguments;
int argumentCount; //NOTE: leave this, so it can be hacked by dottify()
} Toy_NodeFnCall;
//function return
void Toy_emitASTNodeFnReturn(Toy_ASTNode** nodeHandle, Toy_ASTNode* returns);
typedef struct Toy_NodeFnReturn {
Toy_ASTNodeType type;
Toy_ASTNode* returns;
} Toy_NodeFnReturn;
//control flow path - if-else, while, for, break, continue, return
void Toy_emitASTNodeIf(Toy_ASTNode** nodeHandle, Toy_ASTNode* condition, Toy_ASTNode* thenPath, Toy_ASTNode* elsePath);
void Toy_emitASTNodeWhile(Toy_ASTNode** nodeHandle, Toy_ASTNode* condition, Toy_ASTNode* thenPath);
void Toy_emitASTNodeFor(Toy_ASTNode** nodeHandle, Toy_ASTNode* preClause, Toy_ASTNode* condition, Toy_ASTNode* postClause, Toy_ASTNode* thenPath);
void Toy_emitASTNodeBreak(Toy_ASTNode** nodeHandle);
void Toy_emitASTNodeContinue(Toy_ASTNode** nodeHandle);
typedef struct Toy_NodeIf {
Toy_ASTNodeType type;
Toy_ASTNode* condition;
Toy_ASTNode* thenPath;
Toy_ASTNode* elsePath;
} Toy_NodeIf;
typedef struct Toy_NodeWhile {
Toy_ASTNodeType type;
Toy_ASTNode* condition;
Toy_ASTNode* thenPath;
} Toy_NodeWhile;
typedef struct Toy_NodeFor {
Toy_ASTNodeType type;
Toy_ASTNode* preClause;
Toy_ASTNode* condition;
Toy_ASTNode* postClause;
Toy_ASTNode* thenPath;
} Toy_NodeFor;
typedef struct Toy_NodeBreak {
Toy_ASTNodeType type;
} Toy_NodeBreak;
typedef struct Toy_NodeContinue {
Toy_ASTNodeType type;
} Toy_NodeContinue;
//and operator
void Toy_emitASTNodeAnd(Toy_ASTNode** nodeHandle, Toy_ASTNode* rhs); //handled node becomes lhs
typedef struct Toy_NodeAnd {
Toy_ASTNodeType type;
Toy_ASTNode* left;
Toy_ASTNode* right;
} Toy_NodeAnd;
//or operator
void Toy_emitASTNodeOr(Toy_ASTNode** nodeHandle, Toy_ASTNode* rhs); //handled node becomes lhs
typedef struct Toy_NodeOr {
Toy_ASTNodeType type;
Toy_ASTNode* left;
Toy_ASTNode* right;
} Toy_NodeOr;
//pre-post increment/decrement
void Toy_emitASTNodePrefixIncrement(Toy_ASTNode** nodeHandle, Toy_Literal identifier);
void Toy_emitASTNodePrefixDecrement(Toy_ASTNode** nodeHandle, Toy_Literal identifier);
void Toy_emitASTNodePostfixIncrement(Toy_ASTNode** nodeHandle, Toy_Literal identifier);
void Toy_emitASTNodePostfixDecrement(Toy_ASTNode** nodeHandle, Toy_Literal identifier);
typedef struct Toy_NodePrefixIncrement {
Toy_ASTNodeType type;
Toy_Literal identifier;
} Toy_NodePrefixIncrement;
typedef struct Toy_NodePrefixDecrement {
Toy_ASTNodeType type;
Toy_Literal identifier;
} Toy_NodePrefixDecrement;
typedef struct Toy_NodePostfixIncrement {
Toy_ASTNodeType type;
Toy_Literal identifier;
} Toy_NodePostfixIncrement;
typedef struct Toy_NodePostfixDecrement {
Toy_ASTNodeType type;
Toy_Literal identifier;
} Toy_NodePostfixDecrement;
//import a library
void Toy_emitASTNodeImport(Toy_ASTNode** nodeHandle, Toy_Literal identifier, Toy_Literal alias);
typedef struct Toy_NodeImport {
Toy_ASTNodeType type;
Toy_Literal identifier;
Toy_Literal alias;
} Toy_NodeImport;
//for doing nothing
void Toy_emitASTNodePass(Toy_ASTNode** nodeHandle);
union Toy_private_node {
Toy_ASTNodeType type;
Toy_NodeLiteral atomic;
Toy_NodeUnary unary;
Toy_NodeBinary binary;
Toy_NodeTernary ternary;
Toy_NodeGrouping grouping;
Toy_NodeBlock block;
Toy_NodeCompound compound;
Toy_NodePair pair;
Toy_NodeIndex index;
Toy_NodeVarDecl varDecl;
Toy_NodeFnCollection fnCollection;
Toy_NodeFnDecl fnDecl;
Toy_NodeFnCall fnCall;
Toy_NodeFnReturn returns;
Toy_NodeIf pathIf;
Toy_NodeWhile pathWhile;
Toy_NodeFor pathFor;
Toy_NodeBreak pathBreak;
Toy_NodeContinue pathContinue;
Toy_NodeAnd pathAnd;
Toy_NodeOr pathOr;
Toy_NodePrefixIncrement prefixIncrement;
Toy_NodePrefixDecrement prefixDecrement;
Toy_NodePostfixIncrement postfixIncrement;
Toy_NodePostfixDecrement postfixDecrement;
Toy_NodeImport import;
};
//see toy_parser.h for more documentation on this function
TOY_API void Toy_freeASTNode(Toy_ASTNode* node);
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#pragma once
#include "toy_interpreter.h"
//the _index function is a historical oddity - it's used whenever a compound is indexed
int Toy_private_index(Toy_Interpreter* interpreter, Toy_LiteralArray* arguments);
//globally available native functions
int Toy_private_set(Toy_Interpreter* interpreter, Toy_LiteralArray* arguments);
int Toy_private_get(Toy_Interpreter* interpreter, Toy_LiteralArray* arguments);
int Toy_private_push(Toy_Interpreter* interpreter, Toy_LiteralArray* arguments);
int Toy_private_pop(Toy_Interpreter* interpreter, Toy_LiteralArray* arguments);
int Toy_private_length(Toy_Interpreter* interpreter, Toy_LiteralArray* arguments);
int Toy_private_clear(Toy_Interpreter* interpreter, Toy_LiteralArray* arguments);
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#include "toy_common.h"
#include <stdio.h>
#include <string.h>
#include <assert.h>
//test variable sizes based on platform - see issue #35
#define STATIC_ASSERT(test_for_true) static_assert((test_for_true), "(" #test_for_true ") failed")
STATIC_ASSERT(sizeof(char) == 1);
STATIC_ASSERT(sizeof(short) == 2);
STATIC_ASSERT(sizeof(int) == 4);
STATIC_ASSERT(sizeof(float) == 4);
STATIC_ASSERT(sizeof(unsigned char) == 1);
STATIC_ASSERT(sizeof(unsigned short) == 2);
STATIC_ASSERT(sizeof(unsigned int) == 4);
static const char* build = __DATE__ " " __TIME__;
const char* Toy_private_version_build() {
return build;
}
//declare the singleton with default values
Toy_CommandLine Toy_commandLine = {
.error = false,
.help = false,
.version = false,
.binaryfile = NULL,
.sourcefile = NULL,
.compilefile = NULL,
.outfile = "out.tb",
.source = NULL,
.initialfile = NULL,
.enablePrintNewline = true,
.parseBytecodeHeader = false,
.verbose = false
};
void Toy_initCommandLine(int argc, const char* argv[]) {
for (int i = 1; i < argc; i++) { //start at 1 to skip the program name
Toy_commandLine.error = true; //error state by default, set to false by successful flags
if (!strcmp(argv[i], "-h") || !strcmp(argv[i], "--help")) {
Toy_commandLine.help = true;
Toy_commandLine.error = false;
continue;
}
if (!strcmp(argv[i], "-v") || !strcmp(argv[i], "--version")) {
Toy_commandLine.version = true;
Toy_commandLine.error = false;
continue;
}
if (!strcmp(argv[i], "-d") || !strcmp(argv[i], "--debug")) {
Toy_commandLine.verbose = true;
Toy_commandLine.error = false;
continue;
}
if ((!strcmp(argv[i], "-f") || !strcmp(argv[i], "--sourcefile")) && i + 1 < argc) {
Toy_commandLine.sourcefile = (char*)argv[i + 1];
i++;
Toy_commandLine.error = false;
continue;
}
if ((!strcmp(argv[i], "-i") || !strcmp(argv[i], "--input")) && i + 1 < argc) {
Toy_commandLine.source = (char*)argv[i + 1];
i++;
Toy_commandLine.error = false;
continue;
}
if ((!strcmp(argv[i], "-c") || !strcmp(argv[i], "--compile")) && i + 1 < argc) {
Toy_commandLine.compilefile = (char*)argv[i + 1];
i++;
Toy_commandLine.error = false;
continue;
}
if ((!strcmp(argv[i], "-o") || !strcmp(argv[i], "--output")) && i + 1 < argc) {
Toy_commandLine.outfile = (char*)argv[i + 1];
i++;
Toy_commandLine.error = false;
continue;
}
if ((!strcmp(argv[i], "-t") || !strcmp(argv[i], "--initial")) && i + 1 < argc) {
Toy_commandLine.initialfile = (char*)argv[i + 1];
i++;
Toy_commandLine.error = false;
continue;
}
if (!strcmp(argv[i], "-p")) {
Toy_commandLine.parseBytecodeHeader = true;
if (Toy_commandLine.binaryfile) {
Toy_commandLine.error = false;
}
continue;
}
if (!strcmp(argv[i], "-n")) {
Toy_commandLine.enablePrintNewline = false;
Toy_commandLine.error = false;
continue;
}
//option without a flag + ending in .tb = binary input
if (i < argc) {
if (strncmp(&(argv[i][strlen(argv[i]) - 3]), ".tb", 3) == 0) {
Toy_commandLine.binaryfile = (char*)argv[i];
Toy_commandLine.error = false;
continue;
}
}
//don't keep reading in an error state
return;
}
}
void Toy_usageCommandLine(int argc, const char* argv[]) {
printf("Usage: %s [ file.tb | -h | -v | -d | -f file.toy | -i source | -c file.toy -o out.tb | -t file.toy ]\n\n", argv[0]);
}
void Toy_helpCommandLine(int argc, const char* argv[]) {
Toy_usageCommandLine(argc, argv);
printf(" -h, --help\t\t\tShow this help then exit.\n");
printf(" -v, --version\t\t\tShow version and copyright information then exit.\n");
printf(" -d, --debug\t\t\tBe verbose when operating.\n");
printf(" -f, --file filename\t\tParse, compile and execute the source file.\n");
printf(" -i, --input source\t\tParse, compile and execute this given string of source code.\n");
printf(" -c, --compile filename\tParse and compile the specified source file into an output file.\n");
printf(" -o, --output outfile\t\tName of the output file built with --compile (default: out.tb).\n");
printf(" -t, --initial filename\tStart the repl as normal, after first running the given file.\n");
printf(" -p\t\t\t\tParse the given bytecode's header, then exit (requires file.tb).\n");
printf(" -n\t\t\t\tDisable the newline character at the end of the print statement.\n");
}
void Toy_copyrightCommandLine(int argc, const char* argv[]) {
printf("Toy Programming Language Interpreter Version %d.%d.%d (built on %s)\n\n", TOY_VERSION_MAJOR, TOY_VERSION_MINOR, TOY_VERSION_PATCH, TOY_VERSION_BUILD);
printf("Copyright (c) 2020-2023 Kayne Ruse, KR Game Studios\n\n");
printf("This software is provided 'as-is', without any express or implied warranty. In no event will the authors be held liable for any damages arising from the use of this software.\n\n");
printf("Permission is granted to anyone to use this software for any purpose, including commercial applications, and to alter it and redistribute it freely, subject to the following restrictions:\n\n");
printf("1. The origin of this software must not be misrepresented; you must not claim that you wrote the original software. If you use this software in a product, an acknowledgment in the product documentation would be appreciated but is not required.\n\n");
printf("2. Altered source versions must be plainly marked as such, and must not be misrepresented as being the original software.\n\n");
printf("3. This notice may not be removed or altered from any source distribution.\n\n");
}
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#pragma once
/*!
# toy_common.h
This file is generally included in most header files within Toy, as it is where the TOY_API macro is defined. It also has some utilities intended for use only by the repl.
## Defined Macros
!*/
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
/*!
### TOY_API
This definition of this macro is platform-dependant, and used to enable cross-platform compilation of shared and static libraries.
!*/
#if defined(__linux__) || defined(__MINGW32__) || defined(__GNUC__)
#define TOY_API extern
#elif defined(_MSC_VER)
#ifndef TOY_EXPORT
#define TOY_API __declspec(dllimport)
#else
#define TOY_API __declspec(dllexport)
#endif
#else
#define TOY_API extern
#endif
/*!
### TOY_VERSION_MAJOR
The current major version of Toy. This value is embedded into the bytecode, and the interpreter will refuse to run bytecode with a major version that does not match its own version.
This value MUST fit into an unsigned char.
!*/
#define TOY_VERSION_MAJOR 1
/*!
### TOY_VERSION_MINOR
The current minor version of Toy. This value is embedded into the bytecode, and the interpreter will refuse to run bytecode with a minor version that is greater than its own minor version.
This value MUST fit into an unsigned char.
!*/
#define TOY_VERSION_MINOR 3
/*!
### TOY_VERSION_PATCH
The current patch version of Toy. This value is embedded into the bytecode.
This value MUST fit into an unsigned char.
!*/
#define TOY_VERSION_PATCH 2
/*!
### TOY_VERSION_BUILD
The current build version of Toy. This value is embedded into the bytecode.
This evaluates to a c-string, which contains build information such as compilation date and time of the interpreter. When in verbose mode, the compiler will display a warning if the build version of the bytecode does not match the build version of the interpreter.
This macro may also be used to store additonal information about forks of the Toy codebase.
!*/
#define TOY_VERSION_BUILD Toy_private_version_build()
TOY_API const char* Toy_private_version_build();
/*
The following code is intended only for use within the repl.
*/
//for processing the command line arguments in the repl
typedef struct {
bool error;
bool help;
bool version;
char* binaryfile;
char* sourcefile;
char* compilefile;
char* outfile; //defaults to out.tb
char* source;
char* initialfile;
bool enablePrintNewline;
bool parseBytecodeHeader;
bool verbose;
} Toy_CommandLine;
//these are intended for the repl only, despite using the api prefix
TOY_API Toy_CommandLine Toy_commandLine;
TOY_API void Toy_initCommandLine(int argc, const char* argv[]);
TOY_API void Toy_usageCommandLine(int argc, const char* argv[]);
TOY_API void Toy_helpCommandLine(int argc, const char* argv[]);
TOY_API void Toy_copyrightCommandLine(int argc, const char* argv[]);
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#pragma once
/*!
# toy_compiler.h
This header defines the compiler structure, which is used to transform abstract syntax trees into usable intermediate bytecode. There are two steps to generating bytecode - the writing step, and the collation step.
During the writing step, the core of the program is generated, along with a series of literals representing the values within the program; these values are compressed and flattened into semi-unrecognizable forms. If the same literal is used multiple times in a program, such as a variable name, the name itself is replaced by a reference to the flattened literals within the cache.
During the collation step, everything from the core programs execution instructions, the flattened literals, the functions (which have their own sections and protocols within the bytecode) and version information (such as the macros defined in toy_common.h) are all combined into a single buffer of bytes, known as bytecode. This bytecode can then be safely saved to a file or immediately executed.
!*/
#include "toy_common.h"
#include "toy_opcodes.h"
#include "toy_ast_node.h"
#include "toy_literal_array.h"
typedef struct Toy_Compiler {
Toy_LiteralArray literalCache;
unsigned char* bytecode;
int capacity;
int count;
bool panic;
} Toy_Compiler;
/*!
## Define Functions
Executing the following functions out-of-order causes undefiend behaviour.
!*/
/*!
### void Toy_initCompiler(Toy_Compiler* compiler)
This function initializes the given compiler.
!*/
TOY_API void Toy_initCompiler(Toy_Compiler* compiler);
/*!
### void Toy_writeCompiler(Toy_Compiler* compiler, Toy_ASTNode* node)
This function writes the given `node` argument to the compiler. During the writing step, this function may be called repeatedly, with a stream of results from `Toy_scanParser()`, until `Toy_scanParser()` returns `NULL`.
!*/
TOY_API void Toy_writeCompiler(Toy_Compiler* compiler, Toy_ASTNode* node);
/*!
### unsigned char* Toy_collateCompiler(Toy_Compiler* compiler, size_t* size)
This function returns a buffer of bytes, known as "bytecode", created from the given compiler; it also stores the size of the bytecode in the variable pointed to by `size`.
Calling `Toy_collateCompiler()` multiple times on the same compiler will produce undefined behaviour.
!*/
TOY_API unsigned char* Toy_collateCompiler(Toy_Compiler* compiler, size_t* size);
/*!
### void Toy_freeCompiler(Toy_Compiler* compiler)
This function frees a compiler. Calling this on a compiler which has not been collated will free that compiler as expected - anything written to it will be lost.
!*/
TOY_API void Toy_freeCompiler(Toy_Compiler* compiler);
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#pragma once
/* toy_console_colors.h - console utility
This file provides a number of macros that can set the color of text in a console
window. These are used for convenience only. They are supposed to be dropped into
a printf()'s first argument, like so:
printf(TOY_CC_NOTICE "Hello world" TOY_CC_RESET);
NOTE: you need both font AND background for these to work
*/
//platform/compiler-specific instructions
#if defined(__linux__) || defined(__MINGW32__) || defined(__GNUC__)
//fonts color
#define TOY_CC_FONT_BLACK "\033[30;"
#define TOY_CC_FONT_RED "\033[31;"
#define TOY_CC_FONT_GREEN "\033[32;"
#define TOY_CC_FONT_YELLOW "\033[33;"
#define TOY_CC_FONT_BLUE "\033[34;"
#define TOY_CC_FONT_PURPLE "\033[35;"
#define TOY_CC_FONT_DGREEN "\033[6;"
#define TOY_CC_FONT_WHITE "\033[7;"
#define TOY_CC_FONT_CYAN "\x1b[36m"
//background color
#define TOY_CC_BACK_BLACK "40m"
#define TOY_CC_BACK_RED "41m"
#define TOY_CC_BACK_GREEN "42m"
#define TOY_CC_BACK_YELLOW "43m"
#define TOY_CC_BACK_BLUE "44m"
#define TOY_CC_BACK_PURPLE "45m"
#define TOY_CC_BACK_DGREEN "46m"
#define TOY_CC_BACK_WHITE "47m"
//useful
#define TOY_CC_NOTICE TOY_CC_FONT_GREEN TOY_CC_BACK_BLACK
#define TOY_CC_WARN TOY_CC_FONT_YELLOW TOY_CC_BACK_BLACK
#define TOY_CC_ERROR TOY_CC_FONT_RED TOY_CC_BACK_BLACK
#define TOY_CC_RESET "\033[0m"
#else
//fonts color
#define TOY_CC_FONT_BLACK
#define TOY_CC_FONT_RED
#define TOY_CC_FONT_GREEN
#define TOY_CC_FONT_YELLOW
#define TOY_CC_FONT_BLUE
#define TOY_CC_FONT_PURPLE
#define TOY_CC_FONT_DGREEN
#define TOY_CC_FONT_WHITE
#define TOY_CC_FONT_CYAN
//background color
#define TOY_CC_BACK_BLACK
#define TOY_CC_BACK_RED
#define TOY_CC_BACK_GREEN
#define TOY_CC_BACK_YELLOW
#define TOY_CC_BACK_BLUE
#define TOY_CC_BACK_PURPLE
#define TOY_CC_BACK_DGREEN
#define TOY_CC_BACK_WHITE
//useful
#define TOY_CC_NOTICE TOY_CC_FONT_GREEN TOY_CC_BACK_BLACK
#define TOY_CC_WARN TOY_CC_FONT_YELLOW TOY_CC_BACK_BLACK
#define TOY_CC_ERROR TOY_CC_FONT_RED TOY_CC_BACK_BLACK
#define TOY_CC_RESET
#endif
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#pragma once
/*!
# toy_interpreter.h
This header defines the interpreter structure, which is the beating heart of Toy.
`Toy_Interpreter` is a stack-based, bytecode-driven interpreter with a number of customisation options, including "hooks"; native C functions wrapped in `Toy_Literal` instances, injected into the interpreter in order to give the Toy scripts access to libraries via the `import` keyword. The hooks, when invoked this way, can then inject further native functions into the interpreter's current scope. Exactly which hooks are made available varies by host program, but `standard` is the most commonly included one.
Another useful customisation feature is the ability to redicrect output from the `print` and `assert` keywords, as well as any internal errors that occur. This can allow you to add in a logging system, or even hook the `print` statement up to some kind of HUD.
## Defined Interfaces
Note: These interfaces are *actually* defined in [toy_literal.h](toy_literal_h.md) but are documented here, because this is where it matters most.
### typedef void (*Toy_PrintFn)(const char*)
This is the interface used by "print functions" - that is, functions used to print messages from the `print` and `assert` keywords, as well as internal interpreter errors.
### typedef int (*Toy_NativeFn)(struct Toy_Interpreter* interpreter, struct Toy_LiteralArray* arguments)
This is the interface used by "native functions" - that is, functions written in C which can be called directly by Toy scripts.
The arguments to the function are passed in as a `Toy_LiteralArray`.
### typedef int (*Toy_HookFn)(struct Toy_Interpreter* interpreter, struct Toy_Literal identifier, struct Toy_Literal alias)
This is the interface used by "hook functions" - that is, functions written in C which are invoked by using the `import` keyword, and are intended to inject other native functions into the current scope. While hook functions are capable of doing other things, this is greatly discouraged.
The identifier of the library (its name) is passed in as a `Toy_Literal`, as is any given alias; if no alias is given, then `alias` will be a null literal. Here, the identifier is `standard`, while the alias is `std`.
```
import standard as std;
```
Conventionally, when an alias is given, all of the functions should instead be inserted into a `Toy_LiteralDictionary` which is then inserted into the scope with the alias as its identifier.
!*/
#include "toy_common.h"
#include "toy_literal.h"
#include "toy_literal_array.h"
#include "toy_literal_dictionary.h"
#include "toy_scope.h"
//the interpreter acts depending on the bytecode instructions
typedef struct Toy_Interpreter {
//input
const unsigned char* bytecode;
int length;
int count;
int codeStart; //BUGFIX: for jumps, must be initialized to -1
Toy_LiteralArray literalCache; //read-only - built from the bytecode, refreshed each time new bytecode is provided
//operation
Toy_Scope* scope;
Toy_LiteralArray stack;
//Library APIs
Toy_LiteralDictionary* hooks;
//debug outputs
Toy_PrintFn printOutput;
Toy_PrintFn assertOutput;
Toy_PrintFn errorOutput;
int depth; //don't overflow
bool panic;
} Toy_Interpreter;
/*!
## Defined Functions
!*/
/*!
### void Toy_initInterpreter(Toy_Interpreter* interpreter)
This function initializes the interpreter. It allocates memory for internal systems such as the stack, and zeroes-out systems that have yet to be invoked. Internally, it also invokes `Toy_resetInterpreter` to initialize the environment.
!*/
TOY_API void Toy_initInterpreter(Toy_Interpreter* interpreter); //start of program
/*!
### void Toy_runInterpreter(Toy_Interpreter* interpreter, const unsigned char* bytecode, size_t length)
This function takes a `Toy_Interpreter` and `bytecode` (as well as the `length` of the bytecode), checks its version information, parses and un-flattens the literal cache, and executes the compiled program stored in the bytecode. This function also consumes the bytecode, so the `bytecode` argument is no longer valid after calls.
If the given bytecode's embedded version is not compatible with the current interpreter, then this function will refuse to execute.
Re-using a `Toy_Interpreter` instance without first resetting it is possible (that's how the repl works), however doing so may have unintended consequences if the scripts are not intended to be used in such a way. Any variables declared will persist.
!*/
TOY_API void Toy_runInterpreter(Toy_Interpreter* interpreter, const unsigned char* bytecode, size_t length);
/*!
### void Toy_resetInterpreter(Toy_Interpreter* interpreter)
This function frees any scopes that the scripts have built up, and generates a new one. It also injects several globally available functions:
* set
* get
* push
* pop
* length
* clear
!*/
TOY_API void Toy_resetInterpreter(Toy_Interpreter* interpreter);
/*!
### void Toy_freeInterpreter(Toy_Interpreter* interpreter)
This function frees a `Toy_Interpreter`, clearing all of the memory used within. That interpreter is no longer valid for use, and must be re-initialized.
!*/
TOY_API void Toy_freeInterpreter(Toy_Interpreter* interpreter);
/*!
### bool Toy_injectNativeFn(Toy_Interpreter* interpreter, const char* name, Toy_NativeFn func)
This function will inject the given native function `func` into the `Toy_Interpreter`'s current scope, with the identifer as `name`. Both the name and function will be converted into literals internally before being stored. It will return true on success, otherwise it will return false.
The primary use of this function is within hooks.
!*/
TOY_API bool Toy_injectNativeFn(Toy_Interpreter* interpreter, const char* name, Toy_NativeFn func);
/*!
### bool Toy_injectNativeHook(Toy_Interpreter* interpreter, const char* name, Toy_HookFn hook)
This function will inject the given native function `hook` into the `Toy_Interpreter`'s hook cache, with the identifier as `name`. Both the name and the function will be converted into literals internally before being stored. It will return true on success, otherwise it will return false.
Hooks are invoked with the `import` keyword within Toy's scripts.
!*/
TOY_API bool Toy_injectNativeHook(Toy_Interpreter* interpreter, const char* name, Toy_HookFn hook);
/*!
### bool Toy_callLiteralFn(Toy_Interpreter* interpreter, Toy_Literal func, Toy_LiteralArray* arguments, Toy_LiteralArray* returns)
This function calls a `Toy_Literal` which contains a function, with the arguments to that function passed in as `arguments` and the results stored in `returns`. It returns true on success, otherwise it returns false.
The literal `func` can be either a native function or a Toy function, but it won't execute a hook.
!*/
TOY_API bool Toy_callLiteralFn(Toy_Interpreter* interpreter, Toy_Literal func, Toy_LiteralArray* arguments, Toy_LiteralArray* returns);
/*!
### bool Toy_callFn(Toy_Interpreter* interpreter, const char* name, Toy_LiteralArray* arguments, Toy_LiteralArray* returns)
This utility function will find a `Toy_literal` within the `Toy_Interpreter`'s scope with an identifier that matches `name`, and will invoke it using `Toy_callLiteralFn` (passing in `arguments` and `returns` as expected).
!*/
TOY_API bool Toy_callFn(Toy_Interpreter* interpreter, const char* name, Toy_LiteralArray* arguments, Toy_LiteralArray* returns);
/*!
### bool Toy_parseIdentifierToValue(Toy_Interpreter* interpreter, Toy_Literal* literalPtr)
Sometimes, native functions will receive `Toy_Literal` identifiers instead of the values - the correct values can be retreived from the given interpreter's scope using the following pattern:
```c
Toy_Literal foobarIdn = foobar;
if (TOY_IS_IDENTIFIER(foobar) && Toy_parseIdentifierToValue(interpreter, &foobar)) {
freeLiteral(foobarIdn); //remember to free the identifier
}
```
!*/
TOY_API bool Toy_parseIdentifierToValue(Toy_Interpreter* interpreter, Toy_Literal* literalPtr);
/*!
### void Toy_setInterpreterPrint(Toy_Interpreter* interpreter, Toy_PrintFn printOutput)
This function sets the function called by the `print` keyword. By default, the following wrapper is used:
```c
static void printWrapper(const char* output) {
printf("%s\n", output);
}
```
Note: The above is a very minor lie - in reality there are some preprocessor directives to allow the repl's `-n` flag to work.
!*/
TOY_API void Toy_setInterpreterPrint(Toy_Interpreter* interpreter, Toy_PrintFn printOutput);
/*!
### void Toy_setInterpreterAssert(Toy_Interpreter* interpreter, Toy_PrintFn assertOutput)
This function sets the function called by the `assert` keyword on failure. By default, the following wrapper is used:
```c
static void assertWrapper(const char* output) {
fprintf(stderr, "Assertion failure: %s\n", output);
}
```
!*/
TOY_API void Toy_setInterpreterAssert(Toy_Interpreter* interpreter, Toy_PrintFn assertOutput);
/*!
### void Toy_setInterpreterError(Toy_Interpreter* interpreter, Toy_PrintFn errorOutput)
This function sets the function called when an error occurs within the interpreter. By default, the following wrapper is used:
```c
static void errorWrapper(const char* output) {
fprintf(stderr, "%s", output); //no newline
}
```
!*/
TOY_API void Toy_setInterpreterError(Toy_Interpreter* interpreter, Toy_PrintFn errorOutput);
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#include "toy_keyword_types.h"
#include "toy_common.h"
#include <string.h>
Toy_KeywordType Toy_keywordTypes[] = {
//type keywords
{TOY_TOKEN_NULL, "null"},
{TOY_TOKEN_BOOLEAN, "bool"},
{TOY_TOKEN_INTEGER, "int"},
{TOY_TOKEN_FLOAT, "float"},
{TOY_TOKEN_STRING, "string"},
{TOY_TOKEN_FUNCTION, "fn"},
{TOY_TOKEN_OPAQUE, "opaque"},
{TOY_TOKEN_ANY, "any"},
//other keywords
{TOY_TOKEN_AS, "as"},
{TOY_TOKEN_ASSERT, "assert"},
{TOY_TOKEN_BREAK, "break"},
{TOY_TOKEN_CLASS, "class"},
{TOY_TOKEN_CONST, "const"},
{TOY_TOKEN_CONTINUE, "continue"},
{TOY_TOKEN_DO, "do"},
{TOY_TOKEN_ELSE, "else"},
{TOY_TOKEN_EXPORT, "export"},
{TOY_TOKEN_FOR, "for"},
{TOY_TOKEN_FOREACH, "foreach"},
{TOY_TOKEN_IF, "if"},
{TOY_TOKEN_IMPORT, "import"},
{TOY_TOKEN_IN, "in"},
{TOY_TOKEN_OF, "of"},
{TOY_TOKEN_PRINT, "print"},
{TOY_TOKEN_RETURN, "return"},
{TOY_TOKEN_TYPE, "type"},
{TOY_TOKEN_ASTYPE, "astype"},
{TOY_TOKEN_TYPEOF, "typeof"},
{TOY_TOKEN_VAR, "var"},
{TOY_TOKEN_WHILE, "while"},
//literal values
{TOY_TOKEN_LITERAL_TRUE, "true"},
{TOY_TOKEN_LITERAL_FALSE, "false"},
//meta tokens
{TOY_TOKEN_PASS, NULL},
{TOY_TOKEN_ERROR, NULL},
{TOY_TOKEN_EOF, NULL},
};
char* Toy_findKeywordByType(Toy_TokenType type) {
if (type == TOY_TOKEN_EOF) {
return "EOF";
}
for(int i = 0; Toy_keywordTypes[i].keyword; i++) {
if (Toy_keywordTypes[i].type == type) {
return Toy_keywordTypes[i].keyword;
}
}
return NULL;
}
Toy_TokenType Toy_findTypeByKeyword(const char* keyword) {
const int length = strlen(keyword);
for (int i = 0; Toy_keywordTypes[i].keyword; i++) {
if (!strncmp(keyword, Toy_keywordTypes[i].keyword, length)) {
return Toy_keywordTypes[i].type;
}
}
return TOY_TOKEN_EOF;
}
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#pragma once
#include "toy_token_types.h"
typedef struct {
Toy_TokenType type;
char* keyword;
} Toy_KeywordType;
extern Toy_KeywordType Toy_keywordTypes[];
char* Toy_findKeywordByType(Toy_TokenType type);
Toy_TokenType Toy_findTypeByKeyword(const char* keyword);
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#include "toy_lexer.h"
#include "toy_console_colors.h"
#include "toy_keyword_types.h"
#include <stdio.h>
#include <string.h>
#include <ctype.h>
//static generic utility functions
static void cleanLexer(Toy_Lexer* lexer) {
lexer->source = NULL;
lexer->start = 0;
lexer->current = 0;
lexer->line = 1;
lexer->commentsEnabled = true;
}
static bool isAtEnd(Toy_Lexer* lexer) {
return lexer->source[lexer->current] == '\0';
}
static char peek(Toy_Lexer* lexer) {
return lexer->source[lexer->current];
}
static char peekNext(Toy_Lexer* lexer) {
if (isAtEnd(lexer)) return '\0';
return lexer->source[lexer->current + 1];
}
static char advance(Toy_Lexer* lexer) {
if (isAtEnd(lexer)) {
return '\0';
}
//new line
if (lexer->source[lexer->current] == '\n') {
lexer->line++;
}
lexer->current++;
return lexer->source[lexer->current - 1];
}
static void eatWhitespace(Toy_Lexer* lexer) {
const char c = peek(lexer);
switch(c) {
case ' ':
case '\r':
case '\n':
case '\t':
advance(lexer);
break;
//comments
case '/':
if (!lexer->commentsEnabled) {
return;
}
//eat the line
if (peekNext(lexer) == '/') {
while (!isAtEnd(lexer) && advance(lexer) != '\n');
break;
}
//eat the block
if (peekNext(lexer) == '*') {
advance(lexer);
advance(lexer);
while(!isAtEnd(lexer) && !(peek(lexer) == '*' && peekNext(lexer) == '/')) advance(lexer);
advance(lexer);
advance(lexer);
break;
}
return;
default:
return;
}
//tail recursion
eatWhitespace(lexer);
}
static bool isDigit(Toy_Lexer* lexer) {
return peek(lexer) >= '0' && peek(lexer) <= '9';
}
static bool isAlpha(Toy_Lexer* lexer) {
return
(peek(lexer) >= 'A' && peek(lexer) <= 'Z') ||
(peek(lexer) >= 'a' && peek(lexer) <= 'z') ||
peek(lexer) == '_'
;
}
static bool match(Toy_Lexer* lexer, char c) {
if (peek(lexer) == c) {
advance(lexer);
return true;
}
return false;
}
//token generators
static Toy_Token makeErrorToken(Toy_Lexer* lexer, char* msg) {
Toy_Token token;
token.type = TOY_TOKEN_ERROR;
token.lexeme = msg;
token.length = strlen(msg);
token.line = lexer->line;
#ifndef TOY_EXPORT
if (Toy_commandLine.verbose) {
printf("err:");
Toy_private_printToken(&token);
}
#endif
return token;
}
static Toy_Token makeToken(Toy_Lexer* lexer, Toy_TokenType type) {
Toy_Token token;
token.type = type;
token.length = lexer->current - lexer->start;
token.lexeme = &lexer->source[lexer->current - token.length];
token.line = lexer->line;
#ifndef TOY_EXPORT
//BUG #10: this shows TOKEN_EOF twice due to the overarching structure of the program - can't be fixed
if (Toy_commandLine.verbose) {
printf("tok:");
Toy_private_printToken(&token);
}
#endif
return token;
}
static Toy_Token makeIntegerOrFloat(Toy_Lexer* lexer) {
Toy_TokenType type = TOY_TOKEN_LITERAL_INTEGER; //what am I making?
while(isDigit(lexer) || peek(lexer) == '_') advance(lexer);
if (peek(lexer) == '.' && (peekNext(lexer) >= '0' && peekNext(lexer) <= '9')) { //BUGFIX: peekNext == digit
type = TOY_TOKEN_LITERAL_FLOAT;
advance(lexer);
while(isDigit(lexer) || peek(lexer) == '_') advance(lexer);
}
Toy_Token token;
token.type = type;
token.lexeme = &lexer->source[lexer->start];
token.length = lexer->current - lexer->start;
token.line = lexer->line;
#ifndef TOY_EXPORT
if (Toy_commandLine.verbose) {
if (type == TOY_TOKEN_LITERAL_INTEGER) {
printf("int:");
} else {
printf("flt:");
}
Toy_private_printToken(&token);
}
#endif
return token;
}
static bool isEscapableCharacter(char c) {
switch (c) {
case 'n':
case 't':
case '\\':
case '"':
return true;
default:
return false;
}
}
static Toy_Token makeString(Toy_Lexer* lexer, char terminator) {
while (!isAtEnd(lexer)) {
//stop if you've hit the terminator
if (peek(lexer) == terminator) {
advance(lexer); //eat terminator
break;
}
//skip escaped control characters
if (peek(lexer) == '\\' && isEscapableCharacter(peekNext(lexer))) {
advance(lexer);
advance(lexer);
continue;
}
//otherwise
advance(lexer);
}
if (isAtEnd(lexer)) {
return makeErrorToken(lexer, "Unterminated string");
}
Toy_Token token;
token.type = TOY_TOKEN_LITERAL_STRING;
token.lexeme = &lexer->source[lexer->start + 1];
token.length = lexer->current - lexer->start - 2;
token.line = lexer->line;
#ifndef TOY_EXPORT
if (Toy_commandLine.verbose) {
printf("str:");
Toy_private_printToken(&token);
}
#endif
return token;
}
static Toy_Token makeKeywordOrIdentifier(Toy_Lexer* lexer) {
advance(lexer); //first letter can only be alpha
while(isDigit(lexer) || isAlpha(lexer)) {
advance(lexer);
}
//scan for a keyword
for (int i = 0; Toy_keywordTypes[i].keyword; i++) {
if (strlen(Toy_keywordTypes[i].keyword) == (size_t)(lexer->current - lexer->start) && !strncmp(Toy_keywordTypes[i].keyword, &lexer->source[lexer->start], lexer->current - lexer->start)) {
Toy_Token token;
token.type = Toy_keywordTypes[i].type;
token.lexeme = &lexer->source[lexer->start];
token.length = lexer->current - lexer->start;
token.line = lexer->line;
#ifndef TOY_EXPORT
if (Toy_commandLine.verbose) {
printf("kwd:");
Toy_private_printToken(&token);
}
#endif
return token;
}
}
//return an identifier
Toy_Token token;
token.type = TOY_TOKEN_IDENTIFIER;
token.lexeme = &lexer->source[lexer->start];
token.length = lexer->current - lexer->start;
token.line = lexer->line;
#ifndef TOY_EXPORT
if (Toy_commandLine.verbose) {
printf("idf:");
Toy_private_printToken(&token);
}
#endif
return token;
}
//exposed functions
void Toy_initLexer(Toy_Lexer* lexer, const char* source) {
cleanLexer(lexer);
lexer->source = source;
}
Toy_Token Toy_private_scanLexer(Toy_Lexer* lexer) {
eatWhitespace(lexer);
lexer->start = lexer->current;
if (isAtEnd(lexer)) return makeToken(lexer, TOY_TOKEN_EOF);
if (isDigit(lexer)) return makeIntegerOrFloat(lexer);
if (isAlpha(lexer)) return makeKeywordOrIdentifier(lexer);
char c = advance(lexer);
switch(c) {
case '(': return makeToken(lexer, TOY_TOKEN_PAREN_LEFT);
case ')': return makeToken(lexer, TOY_TOKEN_PAREN_RIGHT);
case '{': return makeToken(lexer, TOY_TOKEN_BRACE_LEFT);
case '}': return makeToken(lexer, TOY_TOKEN_BRACE_RIGHT);
case '[': return makeToken(lexer, TOY_TOKEN_BRACKET_LEFT);
case ']': return makeToken(lexer, TOY_TOKEN_BRACKET_RIGHT);
case '+': return makeToken(lexer, match(lexer, '=') ? TOY_TOKEN_PLUS_ASSIGN : match(lexer, '+') ? TOY_TOKEN_PLUS_PLUS: TOY_TOKEN_PLUS);
case '-': return makeToken(lexer, match(lexer, '=') ? TOY_TOKEN_MINUS_ASSIGN : match(lexer, '-') ? TOY_TOKEN_MINUS_MINUS: TOY_TOKEN_MINUS);
case '*': return makeToken(lexer, match(lexer, '=') ? TOY_TOKEN_MULTIPLY_ASSIGN : TOY_TOKEN_MULTIPLY);
case '/': return makeToken(lexer, match(lexer, '=') ? TOY_TOKEN_DIVIDE_ASSIGN : TOY_TOKEN_DIVIDE);
case '%': return makeToken(lexer, match(lexer, '=') ? TOY_TOKEN_MODULO_ASSIGN : TOY_TOKEN_MODULO);
case '!': return makeToken(lexer, match(lexer, '=') ? TOY_TOKEN_NOT_EQUAL : TOY_TOKEN_NOT);
case '=': return makeToken(lexer, match(lexer, '=') ? TOY_TOKEN_EQUAL : TOY_TOKEN_ASSIGN);
case '<': return makeToken(lexer, match(lexer, '=') ? TOY_TOKEN_LESS_EQUAL : TOY_TOKEN_LESS);
case '>': return makeToken(lexer, match(lexer, '=') ? TOY_TOKEN_GREATER_EQUAL : TOY_TOKEN_GREATER);
case '&': //TOKEN_AND not used
if (advance(lexer) != '&') {
return makeErrorToken(lexer, "Unexpected '&'");
} else {
return makeToken(lexer, TOY_TOKEN_AND_AND);
}
case '|': return makeToken(lexer, match(lexer, '|') ? TOY_TOKEN_OR_OR : TOY_TOKEN_PIPE);
case '?': return makeToken(lexer, TOY_TOKEN_QUESTION);
case ':': return makeToken(lexer, TOY_TOKEN_COLON);
case ';': return makeToken(lexer, TOY_TOKEN_SEMICOLON);
case ',': return makeToken(lexer, TOY_TOKEN_COMMA);
case '.':
if (peek(lexer) == '.' && peekNext(lexer) == '.') {
advance(lexer);
advance(lexer);
return makeToken(lexer, TOY_TOKEN_REST);
}
return makeToken(lexer, TOY_TOKEN_DOT);
case '"':
return makeString(lexer, c);
//TODO: possibly support interpolated strings
default: {
char buffer[128];
snprintf(buffer, 128, "Unexpected token: %c", c);
return makeErrorToken(lexer, buffer);
}
}
}
static void trim(char** s, int* l) { //all this to remove a newline?
while( isspace(( (*((unsigned char**)(s)))[(*l) - 1] )) ) (*l)--;
while(**s && isspace( **(unsigned char**)(s)) ) { (*s)++; (*l)--; }
}
//for debugging
void Toy_private_printToken(Toy_Token* token) {
if (token->type == TOY_TOKEN_ERROR) {
printf(TOY_CC_ERROR "Error\t%d\t%.*s\n" TOY_CC_RESET, token->line, token->length, token->lexeme);
return;
}
printf("\t%d\t%d\t", token->type, token->line);
if (token->type == TOY_TOKEN_IDENTIFIER || token->type == TOY_TOKEN_LITERAL_INTEGER || token->type == TOY_TOKEN_LITERAL_FLOAT || token->type == TOY_TOKEN_LITERAL_STRING) {
printf("%.*s\t", token->length, token->lexeme);
} else {
char* keyword = Toy_findKeywordByType(token->type);
if (keyword != NULL) {
printf("%s", keyword);
} else {
char* str = (char*)token->lexeme; //strip const-ness for trimming
int length = token->length;
trim(&str, &length);
printf("%.*s", length, str);
}
}
printf("\n");
}
void Toy_private_setComments(Toy_Lexer* lexer, bool enabled) {
lexer->commentsEnabled = enabled;
}
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#pragma once
/*!
# toy_lexer.h
This header defines the lexer and token structures, which can be bound to a piece of source code, and used to tokenize it within a parser.
!*/
#include "toy_common.h"
#include "toy_token_types.h"
//lexers are bound to a string of code, and return a single token every time scan is called
typedef struct {
const char* source;
int start; //start of the token
int current; //current position of the lexer
int line; //track this for error handling
bool commentsEnabled; //BUGFIX: enable comments (disabled in repl)
} Toy_Lexer;
//tokens are intermediaries between lexers and parsers
typedef struct {
Toy_TokenType type;
const char* lexeme;
int length;
int line;
} Toy_Token;
/*!
## Defined Functions
!*/
/*!
### void Toy_initLexer(Toy_Lexer* lexer, const char* source)
This function initializes a lexer, binding it to the `source` parameter; the lexer is now ready to be passed to the parser.
!*/
TOY_API void Toy_initLexer(Toy_Lexer* lexer, const char* source);
/*!
### Toy_Token Toy_private_scanLexer(Toy_Lexer* lexer)
This function "scans" the lexer, returning a token to the parser.
Private functions are not intended for general use.
!*/
TOY_API Toy_Token Toy_private_scanLexer(Toy_Lexer* lexer);
/*!
### void Toy_private_printToken(Toy_Token* token)
This function prints a given token to stdout.
Private functions are not intended for general use.
!*/
TOY_API void Toy_private_printToken(Toy_Token* token);
/*!
### void Toy_private_setComments(Toy_Lexer* lexer, bool enabled)
This function sets whether comments are allowed within source code. By default, comments are allowed, and are only disabled in the repl.
Private functions are not intended for general use.
!*/
TOY_API void Toy_private_setComments(Toy_Lexer* lexer, bool enabled);
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#include "toy_literal.h"
#include "toy_memory.h"
#include "toy_literal_array.h"
#include "toy_literal_dictionary.h"
#include "toy_scope.h"
#include "toy_console_colors.h"
#include <stdio.h>
#include <string.h>
//hash util functions
static unsigned int hashString(const char* string, int length) {
unsigned int hash = 2166136261u;
for (int i = 0; i < length; i++) {
hash *= string[i];
hash ^= 16777619;
}
return hash;
}
static unsigned int hashUInt(unsigned int x) {
x = ((x >> 16) ^ x) * 0x45d9f3b;
x = ((x >> 16) ^ x) * 0x45d9f3b;
x = (x >> 16) ^ x;
return x;
}
//exposed functions
void Toy_freeLiteral(Toy_Literal literal) {
//refstrings
if (TOY_IS_STRING(literal)) {
Toy_deleteRefString(TOY_AS_STRING(literal));
return;
}
if (TOY_IS_IDENTIFIER(literal)) {
Toy_deleteRefString(TOY_AS_IDENTIFIER(literal));
return;
}
//compounds
if (TOY_IS_ARRAY(literal) || literal.type == TOY_LITERAL_ARRAY_INTERMEDIATE || literal.type == TOY_LITERAL_DICTIONARY_INTERMEDIATE || literal.type == TOY_LITERAL_TYPE_INTERMEDIATE) {
Toy_freeLiteralArray(TOY_AS_ARRAY(literal));
TOY_FREE(Toy_LiteralArray, TOY_AS_ARRAY(literal));
return;
}
if (TOY_IS_DICTIONARY(literal)) {
Toy_freeLiteralDictionary(TOY_AS_DICTIONARY(literal));
TOY_FREE(Toy_LiteralDictionary, TOY_AS_DICTIONARY(literal));
return;
}
//complex literals
if (TOY_IS_FUNCTION(literal)) {
Toy_popScope(TOY_AS_FUNCTION(literal).scope);
TOY_AS_FUNCTION(literal).scope = NULL;
Toy_deleteRefFunction((Toy_RefFunction*)(TOY_AS_FUNCTION(literal).inner.ptr));
}
if (TOY_IS_TYPE(literal) && TOY_AS_TYPE(literal).capacity > 0) {
for (int i = 0; i < TOY_AS_TYPE(literal).count; i++) {
Toy_freeLiteral(((Toy_Literal*)(TOY_AS_TYPE(literal).subtypes))[i]);
}
TOY_FREE_ARRAY(Toy_Literal, TOY_AS_TYPE(literal).subtypes, TOY_AS_TYPE(literal).capacity);
return;
}
}
bool Toy_private_isTruthy(Toy_Literal x) {
if (TOY_IS_NULL(x)) {
fprintf(stderr, TOY_CC_ERROR "Null is neither true nor false\n" TOY_CC_RESET);
return false;
}
if (TOY_IS_BOOLEAN(x)) {
return TOY_AS_BOOLEAN(x);
}
return true;
}
Toy_Literal Toy_private_toIdentifierLiteral(Toy_RefString* ptr) {
return ((Toy_Literal){{ .identifier = { .ptr = ptr, .hash = hashString(Toy_toCString(ptr), Toy_lengthRefString(ptr)) }},TOY_LITERAL_IDENTIFIER});
}
Toy_Literal* Toy_private_typePushSubtype(Toy_Literal* lit, Toy_Literal subtype) {
//grow the subtype array
if (TOY_AS_TYPE(*lit).count + 1 > TOY_AS_TYPE(*lit).capacity) {
int oldCapacity = TOY_AS_TYPE(*lit).capacity;
TOY_AS_TYPE(*lit).capacity = TOY_GROW_CAPACITY(oldCapacity);
TOY_AS_TYPE(*lit).subtypes = TOY_GROW_ARRAY(Toy_Literal, TOY_AS_TYPE(*lit).subtypes, oldCapacity, TOY_AS_TYPE(*lit).capacity);
}
//actually push
((Toy_Literal*)(TOY_AS_TYPE(*lit).subtypes))[ TOY_AS_TYPE(*lit).count++ ] = subtype;
return &((Toy_Literal*)(TOY_AS_TYPE(*lit).subtypes))[ TOY_AS_TYPE(*lit).count - 1 ];
}
Toy_Literal Toy_copyLiteral(Toy_Literal original) {
switch(original.type) {
case TOY_LITERAL_NULL:
case TOY_LITERAL_BOOLEAN:
case TOY_LITERAL_INTEGER:
case TOY_LITERAL_FLOAT:
//no copying needed
return original;
case TOY_LITERAL_STRING: {
return TOY_TO_STRING_LITERAL(Toy_copyRefString(TOY_AS_STRING(original)));
}
case TOY_LITERAL_ARRAY: {
Toy_LiteralArray* array = TOY_ALLOCATE(Toy_LiteralArray, 1);
Toy_initLiteralArray(array);
//preallocate enough space
array->capacity = TOY_AS_ARRAY(original)->capacity;
array->literals = TOY_GROW_ARRAY(Toy_Literal, array->literals, 0, array->capacity);
//copy each element
for (int i = 0; i < TOY_AS_ARRAY(original)->count; i++) {
Toy_pushLiteralArray(array, TOY_AS_ARRAY(original)->literals[i]);
}
return TOY_TO_ARRAY_LITERAL(array);
}
case TOY_LITERAL_DICTIONARY: {
Toy_LiteralDictionary* dictionary = TOY_ALLOCATE(Toy_LiteralDictionary, 1);
Toy_initLiteralDictionary(dictionary);
//preallocate enough space
dictionary->capacity = TOY_AS_DICTIONARY(original)->capacity;
dictionary->entries = TOY_ALLOCATE(Toy_private_dictionary_entry, dictionary->capacity);
for (int i = 0; i < dictionary->capacity; i++) {
dictionary->entries[i].key = TOY_TO_NULL_LITERAL;
dictionary->entries[i].value = TOY_TO_NULL_LITERAL;
}
//copy each entry
for (int i = 0; i < TOY_AS_DICTIONARY(original)->capacity; i++) {
if ( !TOY_IS_NULL(TOY_AS_DICTIONARY(original)->entries[i].key) ) {
Toy_setLiteralDictionary(dictionary, TOY_AS_DICTIONARY(original)->entries[i].key, TOY_AS_DICTIONARY(original)->entries[i].value);
}
}
return TOY_TO_DICTIONARY_LITERAL(dictionary);
}
case TOY_LITERAL_FUNCTION: {
Toy_Literal literal = TOY_TO_FUNCTION_LITERAL(Toy_copyRefFunction( TOY_AS_FUNCTION(original).inner.ptr ));
TOY_AS_FUNCTION(literal).scope = Toy_copyScope(TOY_AS_FUNCTION(original).scope);
return literal;
}
case TOY_LITERAL_IDENTIFIER: {
//NOTE: could optimise this by copying the hash manually, but it's a very small increase in performance
return TOY_TO_IDENTIFIER_LITERAL(Toy_copyRefString(TOY_AS_IDENTIFIER(original)));
}
case TOY_LITERAL_TYPE: {
Toy_Literal lit = TOY_TO_TYPE_LITERAL(TOY_AS_TYPE(original).typeOf, TOY_AS_TYPE(original).constant);
for (int i = 0; i < TOY_AS_TYPE(original).count; i++) {
TOY_TYPE_PUSH_SUBTYPE(&lit, Toy_copyLiteral( ((Toy_Literal*)(TOY_AS_TYPE(original).subtypes))[i] ));
}
return lit;
}
case TOY_LITERAL_OPAQUE: {
return original; //literally a shallow copy
}
case TOY_LITERAL_ARRAY_INTERMEDIATE: { //TODO: efficient preallocation?
Toy_LiteralArray* array = TOY_ALLOCATE(Toy_LiteralArray, 1);
Toy_initLiteralArray(array);
//copy each element
for (int i = 0; i < TOY_AS_ARRAY(original)->count; i++) {
Toy_Literal literal = Toy_copyLiteral(TOY_AS_ARRAY(original)->literals[i]);
Toy_pushLiteralArray(array, literal);
Toy_freeLiteral(literal);
}
Toy_Literal ret = TOY_TO_ARRAY_LITERAL(array);
ret.type = TOY_LITERAL_ARRAY_INTERMEDIATE;
return ret;
}
case TOY_LITERAL_DICTIONARY_INTERMEDIATE: { //TODO: efficient preallocation?
Toy_LiteralArray* array = TOY_ALLOCATE(Toy_LiteralArray, 1);
Toy_initLiteralArray(array);
//copy each element
for (int i = 0; i < TOY_AS_ARRAY(original)->count; i++) {
Toy_Literal literal = Toy_copyLiteral(TOY_AS_ARRAY(original)->literals[i]);
Toy_pushLiteralArray(array, literal);
Toy_freeLiteral(literal);
}
Toy_Literal ret = TOY_TO_ARRAY_LITERAL(array);
ret.type = TOY_LITERAL_DICTIONARY_INTERMEDIATE;
return ret;
}
case TOY_LITERAL_TYPE_INTERMEDIATE: { //TODO: efficient preallocation?
Toy_LiteralArray* array = TOY_ALLOCATE(Toy_LiteralArray, 1);
Toy_initLiteralArray(array);
//copy each element
for (int i = 0; i < TOY_AS_ARRAY(original)->count; i++) {
Toy_Literal literal = Toy_copyLiteral(TOY_AS_ARRAY(original)->literals[i]);
Toy_pushLiteralArray(array, literal);
Toy_freeLiteral(literal);
}
Toy_Literal ret = TOY_TO_ARRAY_LITERAL(array);
ret.type = TOY_LITERAL_TYPE_INTERMEDIATE;
return ret;
}
case TOY_LITERAL_FUNCTION_INTERMEDIATE: //caries a compiler
case TOY_LITERAL_FUNCTION_NATIVE:
case TOY_LITERAL_FUNCTION_HOOK:
case TOY_LITERAL_INDEX_BLANK:
//no copying possible
return original;
default:
fprintf(stderr, TOY_CC_ERROR "Can't copy that literal type: %d\n" TOY_CC_RESET, original.type);
return TOY_TO_NULL_LITERAL;
}
}
bool Toy_literalsAreEqual(Toy_Literal lhs, Toy_Literal rhs) {
//utility for other things
if (lhs.type != rhs.type) {
// ints and floats are compatible
if ((TOY_IS_INTEGER(lhs) || TOY_IS_FLOAT(lhs)) && (TOY_IS_INTEGER(rhs) || TOY_IS_FLOAT(rhs))) {
if (TOY_IS_INTEGER(lhs)) {
return TOY_AS_INTEGER(lhs) == TOY_AS_FLOAT(rhs);
}
else {
return TOY_AS_FLOAT(lhs) == TOY_AS_INTEGER(rhs);
}
}
return false;
}
switch(lhs.type) {
case TOY_LITERAL_NULL:
return true; //can only be true because of the check above
case TOY_LITERAL_BOOLEAN:
return TOY_AS_BOOLEAN(lhs) == TOY_AS_BOOLEAN(rhs);
case TOY_LITERAL_INTEGER:
return TOY_AS_INTEGER(lhs) == TOY_AS_INTEGER(rhs);
case TOY_LITERAL_FLOAT:
return TOY_AS_FLOAT(lhs) == TOY_AS_FLOAT(rhs);
case TOY_LITERAL_STRING:
return Toy_equalsRefString(TOY_AS_STRING(lhs), TOY_AS_STRING(rhs));
case TOY_LITERAL_ARRAY:
case TOY_LITERAL_ARRAY_INTERMEDIATE:
case TOY_LITERAL_DICTIONARY_INTERMEDIATE: //BUGFIX
case TOY_LITERAL_TYPE_INTERMEDIATE: //BUGFIX: used for storing types as an array
//mismatched sizes
if (TOY_AS_ARRAY(lhs)->count != TOY_AS_ARRAY(rhs)->count) {
return false;
}
//mismatched elements (in order)
for (int i = 0; i < TOY_AS_ARRAY(lhs)->count; i++) {
if (!Toy_literalsAreEqual( TOY_AS_ARRAY(lhs)->literals[i], TOY_AS_ARRAY(rhs)->literals[i] )) {
return false;
}
}
return true;
case TOY_LITERAL_DICTIONARY:
//relatively slow, especially when nested
for (int i = 0; i < TOY_AS_DICTIONARY(lhs)->capacity; i++) {
if (!TOY_IS_NULL(TOY_AS_DICTIONARY(lhs)->entries[i].key)) { //only compare non-null keys
//check it exists in rhs
if (!Toy_existsLiteralDictionary(TOY_AS_DICTIONARY(rhs), TOY_AS_DICTIONARY(lhs)->entries[i].key)) {
return false;
}
//compare the values
Toy_Literal val = Toy_getLiteralDictionary(TOY_AS_DICTIONARY(rhs), TOY_AS_DICTIONARY(lhs)->entries[i].key); //TODO: could be more efficient
if (!Toy_literalsAreEqual(TOY_AS_DICTIONARY(lhs)->entries[i].value, val)) {
Toy_freeLiteral(val);
return false;
}
Toy_freeLiteral(val);
}
}
return true;
case TOY_LITERAL_FUNCTION:
case TOY_LITERAL_FUNCTION_NATIVE:
case TOY_LITERAL_FUNCTION_HOOK:
return false; //functions are never equal
break;
case TOY_LITERAL_IDENTIFIER:
//check shortcuts
if (TOY_HASH_I(lhs) != TOY_HASH_I(rhs)) {
return false;
}
return Toy_equalsRefString(TOY_AS_IDENTIFIER(lhs), TOY_AS_IDENTIFIER(rhs));
case TOY_LITERAL_TYPE:
//check types
if (TOY_AS_TYPE(lhs).typeOf != TOY_AS_TYPE(rhs).typeOf) {
return false;
}
//const don't match
if (TOY_AS_TYPE(lhs).constant != TOY_AS_TYPE(rhs).constant) {
return false;
}
//check subtypes
if (TOY_AS_TYPE(lhs).count != TOY_AS_TYPE(rhs).count) {
return false;
}
//check array|dictionary signatures are the same (in order)
if (TOY_AS_TYPE(lhs).typeOf == TOY_LITERAL_ARRAY || TOY_AS_TYPE(lhs).typeOf == TOY_LITERAL_DICTIONARY) {
for (int i = 0; i < TOY_AS_TYPE(lhs).count; i++) {
if (!Toy_literalsAreEqual(((Toy_Literal*)(TOY_AS_TYPE(lhs).subtypes))[i], ((Toy_Literal*)(TOY_AS_TYPE(rhs).subtypes))[i])) {
return false;
}
}
}
return true;
case TOY_LITERAL_OPAQUE:
return false; //IDK what this is!
case TOY_LITERAL_ANY:
return true;
case TOY_LITERAL_FUNCTION_INTERMEDIATE:
fprintf(stderr, TOY_CC_ERROR "[internal] Can't compare intermediate functions\n" TOY_CC_RESET);
return false;
case TOY_LITERAL_INDEX_BLANK:
return false;
default:
//should never be seen
fprintf(stderr, TOY_CC_ERROR "[internal] Unrecognized literal type in equality: %d\n" TOY_CC_RESET, lhs.type);
return false;
}
return false;
}
int Toy_hashLiteral(Toy_Literal lit) {
switch(lit.type) {
case TOY_LITERAL_NULL:
return 0;
case TOY_LITERAL_BOOLEAN:
return TOY_AS_BOOLEAN(lit) ? 1 : 0;
case TOY_LITERAL_INTEGER:
return hashUInt((unsigned int)TOY_AS_INTEGER(lit));
case TOY_LITERAL_FLOAT: {
unsigned int* ptr = (unsigned int*)(&TOY_AS_FLOAT(lit));
return hashUInt(*ptr);
}
case TOY_LITERAL_STRING:
return hashString(Toy_toCString(TOY_AS_STRING(lit)), Toy_lengthRefString(TOY_AS_STRING(lit)));
case TOY_LITERAL_ARRAY: {
unsigned int res = 0;
for (int i = 0; i < TOY_AS_ARRAY(lit)->count; i++) {
res += Toy_hashLiteral(TOY_AS_ARRAY(lit)->literals[i]);
}
return hashUInt(res);
}
case TOY_LITERAL_DICTIONARY: {
unsigned int res = 0;
for (int i = 0; i < TOY_AS_DICTIONARY(lit)->capacity; i++) {
if (!TOY_IS_NULL(TOY_AS_DICTIONARY(lit)->entries[i].key)) { //only hash non-null keys
res += Toy_hashLiteral(TOY_AS_DICTIONARY(lit)->entries[i].key);
res += Toy_hashLiteral(TOY_AS_DICTIONARY(lit)->entries[i].value);
}
}
return hashUInt(res);
}
case TOY_LITERAL_FUNCTION:
case TOY_LITERAL_FUNCTION_NATIVE:
case TOY_LITERAL_FUNCTION_HOOK:
return -1; //can't hash these
case TOY_LITERAL_IDENTIFIER:
return TOY_HASH_I(lit); //pre-computed
case TOY_LITERAL_TYPE:
return -1; //not much i can really do
case TOY_LITERAL_OPAQUE:
case TOY_LITERAL_ANY:
return -1;
default:
//should never be seen
fprintf(stderr, TOY_CC_ERROR "[internal] Unrecognized literal type in hash: %d\n" TOY_CC_RESET, lit.type);
return 0;
}
}
//utils
static void stdoutWrapper(const char* output) {
printf("%s", output);
}
//buffer the prints
static char* globalPrintBuffer = NULL;
static size_t globalPrintCapacity = 0;
static size_t globalPrintCount = 0;
//BUGFIX: string quotes shouldn't show when just printing strings, but should show when printing them as members of something else
static char quotes = 0; //set to 0 to not show string quotes
static void printToBuffer(const char* str) {
while (strlen(str) + globalPrintCount + 1 > globalPrintCapacity) {
int oldCapacity = globalPrintCapacity;
globalPrintCapacity = TOY_GROW_CAPACITY(globalPrintCapacity);
globalPrintBuffer = TOY_GROW_ARRAY(char, globalPrintBuffer, oldCapacity, globalPrintCapacity);
}
size_t total = snprintf(globalPrintBuffer + globalPrintCount, strlen(str) + 1, "%s", str ? str : "\0");
globalPrintCount += total;
}
//exposed functions
void Toy_printLiteral(Toy_Literal literal) {
Toy_printLiteralCustom(literal, stdoutWrapper);
}
void Toy_printLiteralCustom(Toy_Literal literal, Toy_PrintFn printFn) {
switch(literal.type) {
case TOY_LITERAL_NULL:
printFn("null");
break;
case TOY_LITERAL_BOOLEAN:
printFn(TOY_AS_BOOLEAN(literal) ? "true" : "false");
break;
case TOY_LITERAL_INTEGER: {
char buffer[256];
snprintf(buffer, 256, "%d", TOY_AS_INTEGER(literal));
printFn(buffer);
}
break;
case TOY_LITERAL_FLOAT: {
char buffer[256];
if (TOY_AS_FLOAT(literal) - (int)TOY_AS_FLOAT(literal)) {
snprintf(buffer, 256, "%g", TOY_AS_FLOAT(literal));
}
else {
snprintf(buffer, 256, "%.1f", TOY_AS_FLOAT(literal));
}
printFn(buffer);
}
break;
case TOY_LITERAL_STRING: {
char buffer[TOY_MAX_STRING_LENGTH];
if (!quotes) {
snprintf(buffer, TOY_MAX_STRING_LENGTH, "%.*s", (int)Toy_lengthRefString(TOY_AS_STRING(literal)), Toy_toCString(TOY_AS_STRING(literal)));
}
else {
snprintf(buffer, TOY_MAX_STRING_LENGTH, "%c%.*s%c", quotes, (int)Toy_lengthRefString(TOY_AS_STRING(literal)), Toy_toCString(TOY_AS_STRING(literal)), quotes);
}
printFn(buffer);
}
break;
case TOY_LITERAL_ARRAY: {
Toy_LiteralArray* ptr = TOY_AS_ARRAY(literal);
//hold potential parent-call buffers on the C stack
char* cacheBuffer = globalPrintBuffer;
globalPrintBuffer = NULL;
int cacheCapacity = globalPrintCapacity;
globalPrintCapacity = 0;
int cacheCount = globalPrintCount;
globalPrintCount = 0;
//print the contents to the global buffer
printToBuffer("[");
for (int i = 0; i < ptr->count; i++) {
quotes = '"';
Toy_printLiteralCustom(ptr->literals[i], printToBuffer);
if (i + 1 < ptr->count) {
printToBuffer(",");
}
}
printToBuffer("]");
//swap the parent-call buffer back into place
char* printBuffer = globalPrintBuffer;
int printCapacity = globalPrintCapacity;
int printCount = globalPrintCount;
globalPrintBuffer = cacheBuffer;
globalPrintCapacity = cacheCapacity;
globalPrintCount = cacheCount;
//finally, output and cleanup
printFn(printBuffer);
TOY_FREE_ARRAY(char, printBuffer, printCapacity);
quotes = 0;
}
break;
case TOY_LITERAL_DICTIONARY: {
Toy_LiteralDictionary* ptr = TOY_AS_DICTIONARY(literal);
//hold potential parent-call buffers on the C stack
char* cacheBuffer = globalPrintBuffer;
globalPrintBuffer = NULL;
int cacheCapacity = globalPrintCapacity;
globalPrintCapacity = 0;
int cacheCount = globalPrintCount;
globalPrintCount = 0;
//print the contents to the global buffer
int delimCount = 0;
printToBuffer("[");
for (int i = 0; i < ptr->capacity; i++) {
if (TOY_IS_NULL(ptr->entries[i].key)) {
continue;
}
if (delimCount++ > 0) {
printToBuffer(",");
}
quotes = '"';
Toy_printLiteralCustom(ptr->entries[i].key, printToBuffer);
printToBuffer(":");
quotes = '"';
Toy_printLiteralCustom(ptr->entries[i].value, printToBuffer);
}
//empty dicts MUST have a ":" printed
if (ptr->count == 0) {
printToBuffer(":");
}
printToBuffer("]");
//swap the parent-call buffer back into place
char* printBuffer = globalPrintBuffer;
int printCapacity = globalPrintCapacity;
int printCount = globalPrintCount;
globalPrintBuffer = cacheBuffer;
globalPrintCapacity = cacheCapacity;
globalPrintCount = cacheCount;
//finally, output and cleanup
printFn(printBuffer);
TOY_FREE_ARRAY(char, printBuffer, printCapacity);
quotes = 0;
}
break;
case TOY_LITERAL_FUNCTION:
case TOY_LITERAL_FUNCTION_NATIVE:
case TOY_LITERAL_FUNCTION_HOOK:
printFn("(function)");
break;
case TOY_LITERAL_IDENTIFIER: {
char buffer[256];
snprintf(buffer, 256, "%.*s", (int)Toy_lengthRefString(TOY_AS_IDENTIFIER(literal)), Toy_toCString(TOY_AS_IDENTIFIER(literal)));
printFn(buffer);
}
break;
case TOY_LITERAL_TYPE: {
//hold potential parent-call buffers on the C stack
char* cacheBuffer = globalPrintBuffer;
globalPrintBuffer = NULL;
int cacheCapacity = globalPrintCapacity;
globalPrintCapacity = 0;
int cacheCount = globalPrintCount;
globalPrintCount = 0;
//print the type correctly
printToBuffer("<");
switch(TOY_AS_TYPE(literal).typeOf) {
case TOY_LITERAL_NULL:
printToBuffer("null");
break;
case TOY_LITERAL_BOOLEAN:
printToBuffer("bool");
break;
case TOY_LITERAL_INTEGER:
printToBuffer("int");
break;
case TOY_LITERAL_FLOAT:
printToBuffer("float");
break;
case TOY_LITERAL_STRING:
printToBuffer("string");
break;
case TOY_LITERAL_ARRAY:
//print all in the array
printToBuffer("[");
for (int i = 0; i < TOY_AS_TYPE(literal).count; i++) {
Toy_printLiteralCustom(((Toy_Literal*)(TOY_AS_TYPE(literal).subtypes))[i], printToBuffer);
}
printToBuffer("]");
break;
case TOY_LITERAL_DICTIONARY:
printToBuffer("[");
for (int i = 0; i < TOY_AS_TYPE(literal).count; i += 2) {
Toy_printLiteralCustom(((Toy_Literal*)(TOY_AS_TYPE(literal).subtypes))[i], printToBuffer);
printToBuffer(":");
Toy_printLiteralCustom(((Toy_Literal*)(TOY_AS_TYPE(literal).subtypes))[i + 1], printToBuffer);
}
printToBuffer("]");
break;
case TOY_LITERAL_FUNCTION:
printToBuffer("function");
break;
case TOY_LITERAL_FUNCTION_NATIVE:
printToBuffer("native");
break;
case TOY_LITERAL_IDENTIFIER:
printToBuffer("identifier");
break;
case TOY_LITERAL_TYPE:
printToBuffer("type");
break;
case TOY_LITERAL_OPAQUE:
printToBuffer("opaque");
break;
case TOY_LITERAL_ANY:
printToBuffer("any");
break;
default:
//should never be seen
fprintf(stderr, TOY_CC_ERROR "[internal] Unrecognized literal type in print type: %d\n" TOY_CC_RESET, TOY_AS_TYPE(literal).typeOf);
}
//const (printed last)
if (TOY_AS_TYPE(literal).constant) {
printToBuffer(" const");
}
printToBuffer(">");
//swap the parent-call buffer back into place
char* printBuffer = globalPrintBuffer;
int printCapacity = globalPrintCapacity;
int printCount = globalPrintCount;
globalPrintBuffer = cacheBuffer;
globalPrintCapacity = cacheCapacity;
globalPrintCount = cacheCount;
//finally, output and cleanup
printFn(printBuffer);
TOY_FREE_ARRAY(char, printBuffer, printCapacity);
quotes = 0;
}
break;
case TOY_LITERAL_TYPE_INTERMEDIATE:
case TOY_LITERAL_FUNCTION_INTERMEDIATE:
printFn("Unprintable literal found");
break;
case TOY_LITERAL_OPAQUE:
printFn("(opaque)");
break;
case TOY_LITERAL_ANY:
printFn("(any)");
break;
default:
//should never be seen
fprintf(stderr, TOY_CC_ERROR "[internal] Unrecognized literal type in print: %d\n" TOY_CC_RESET, literal.type);
}
}
-380
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@@ -1,380 +0,0 @@
#pragma once
/*!
# toy_literal.h
This header defines the literal structure, which is used extensively throughout Toy to represent values of some kind.
The main way of interacting with literals is to use a macro of some kind, as the exact implementation of `Toy_Literal` has and will change based on the needs of Toy.
User data can be passed around within Toy as an opaque type - use the tag value for determining what kind of opaque it is, or leave it as 0.
!*/
#include "toy_common.h"
#include "toy_refstring.h"
#include "toy_reffunction.h"
//forward delcare stuff
struct Toy_Literal;
struct Toy_Interpreter;
struct Toy_LiteralArray;
struct Toy_LiteralDictionary;
struct Toy_Scope;
typedef int (*Toy_NativeFn)(struct Toy_Interpreter* interpreter, struct Toy_LiteralArray* arguments);
typedef int (*Toy_HookFn)(struct Toy_Interpreter* interpreter, struct Toy_Literal identifier, struct Toy_Literal alias);
typedef void (*Toy_PrintFn)(const char*);
/*!
## Defined Enums
### Toy_LiteralType
* `TOY_LITERAL_NULL`
* `TOY_LITERAL_BOOLEAN`
* `TOY_LITERAL_INTEGER`
* `TOY_LITERAL_FLOAT`
* `TOY_LITERAL_STRING`
* `TOY_LITERAL_ARRAY`
* `TOY_LITERAL_DICTIONARY`
* `TOY_LITERAL_FUNCTION`
* `TOY_LITERAL_FUNCTION_NATIVE`
* `TOY_LITERAL_FUNCTION_HOOK`
* `TOY_LITERAL_IDENTIFIER`
* `TOY_LITERAL_TYPE`
* `TOY_LITERAL_OPAQUE`
* `TOY_LITERAL_ANY`
These are the main values of `Toy_LiteralType`, each of which represents a potential state of the `Toy_Literal` structure. Do not interact with a literal without determining its type with the `IS_*` macros first.
Other type values are possible, but are only used internally.
!*/
typedef enum {
TOY_LITERAL_NULL,
TOY_LITERAL_BOOLEAN,
TOY_LITERAL_INTEGER,
TOY_LITERAL_FLOAT,
TOY_LITERAL_STRING,
TOY_LITERAL_ARRAY,
TOY_LITERAL_DICTIONARY,
TOY_LITERAL_FUNCTION,
TOY_LITERAL_IDENTIFIER,
TOY_LITERAL_TYPE,
TOY_LITERAL_OPAQUE,
TOY_LITERAL_ANY,
//these are meta-level types - not for general use
TOY_LITERAL_TYPE_INTERMEDIATE, //used to process types in the compiler only
TOY_LITERAL_ARRAY_INTERMEDIATE, //used to process arrays in the compiler only
TOY_LITERAL_DICTIONARY_INTERMEDIATE, //used to process dictionaries in the compiler only
TOY_LITERAL_FUNCTION_INTERMEDIATE, //used to process functions in the compiler only
TOY_LITERAL_FUNCTION_ARG_REST, //used to process function rest parameters only
TOY_LITERAL_FUNCTION_NATIVE, //for handling native functions only
TOY_LITERAL_FUNCTION_HOOK, //for handling hook functions within literals only
TOY_LITERAL_INDEX_BLANK, //for blank indexing i.e. arr[:]
} Toy_LiteralType;
typedef struct Toy_Literal {
union {
bool boolean; //1
int integer; //4
float number;//4
struct {
Toy_RefString* ptr; //8
//string hash?
} string; //8
struct Toy_LiteralArray* array; //8
struct Toy_LiteralDictionary* dictionary; //8
struct {
union {
Toy_RefFunction* ptr; //8
Toy_NativeFn native; //8
Toy_HookFn hook; //8
} inner; //8
struct Toy_Scope* scope; //8
} function; //16
struct { //for variable names
Toy_RefString* ptr; //8
int hash; //4
} identifier; //16
struct {
struct Toy_Literal* subtypes; //8
Toy_LiteralType typeOf; //4
unsigned char capacity; //1
unsigned char count; //1
bool constant; //1
} type; //16
struct {
void* ptr; //8
int tag; //4
} opaque; //16
void* generic; //8
} as; //16
Toy_LiteralType type; //4
//4 - unused
//shenanigans with byte alignment reduces the size of Toy_Literal
} Toy_Literal;
/*!
## Defined Macros
!*/
/*!
The following macros are used to determine if a given literal, passed in as `value`, is of a specific type. It should be noted that `TOY_IS_FUNCTION` will return false for native and hook functions.
* `TOY_IS_NULL(value)`
* `TOY_IS_BOOLEAN(value)`
* `TOY_IS_INTEGER(value)`
* `TOY_IS_FLOAT(value)`
* `TOY_IS_STRING(value)`
* `TOY_IS_ARRAY(value)`
* `TOY_IS_DICTIONARY(value)`
* `TOY_IS_FUNCTION(value)`
* `TOY_IS_FUNCTION_NATIVE(value)`
* `TOY_IS_FUNCTION_HOOK(value)`
* `TOY_IS_IDENTIFIER(value)`
* `TOY_IS_TYPE(value)`
* `TOY_IS_OPAQUE(value)`
!*/
#define TOY_IS_NULL(value) ((value).type == TOY_LITERAL_NULL)
#define TOY_IS_BOOLEAN(value) ((value).type == TOY_LITERAL_BOOLEAN)
#define TOY_IS_INTEGER(value) ((value).type == TOY_LITERAL_INTEGER)
#define TOY_IS_FLOAT(value) ((value).type == TOY_LITERAL_FLOAT)
#define TOY_IS_STRING(value) ((value).type == TOY_LITERAL_STRING)
#define TOY_IS_ARRAY(value) ((value).type == TOY_LITERAL_ARRAY)
#define TOY_IS_DICTIONARY(value) ((value).type == TOY_LITERAL_DICTIONARY)
#define TOY_IS_FUNCTION(value) ((value).type == TOY_LITERAL_FUNCTION)
#define TOY_IS_FUNCTION_NATIVE(value) ((value).type == TOY_LITERAL_FUNCTION_NATIVE)
#define TOY_IS_FUNCTION_HOOK(value) ((value).type == TOY_LITERAL_FUNCTION_HOOK)
#define TOY_IS_IDENTIFIER(value) ((value).type == TOY_LITERAL_IDENTIFIER)
#define TOY_IS_TYPE(value) ((value).type == TOY_LITERAL_TYPE)
#define TOY_IS_OPAQUE(value) ((value).type == TOY_LITERAL_OPAQUE)
/*!
The following macros are used to cast a literal to a specific C type to be used.
* `TOY_AS_BOOLEAN(value)`
* `TOY_AS_INTEGER(value)`
* `TOY_AS_FLOAT(value)`
* `TOY_AS_STRING(value)`
* `TOY_AS_ARRAY(value)`
* `TOY_AS_DICTIONARY(value)`
* `TOY_AS_FUNCTION(value)`
* `TOY_AS_FUNCTION_NATIVE(value)`
* `TOY_AS_FUNCTION_HOOK(value)`
* `TOY_AS_IDENTIFIER(value)`
* `TOY_AS_TYPE(value)`
* `TOY_AS_OPAQUE(value)`
!*/
#define TOY_AS_BOOLEAN(value) ((value).as.boolean)
#define TOY_AS_INTEGER(value) ((value).as.integer)
#define TOY_AS_FLOAT(value) ((value).as.number)
#define TOY_AS_STRING(value) ((value).as.string.ptr)
#define TOY_AS_ARRAY(value) ((Toy_LiteralArray*)((value).as.array))
#define TOY_AS_DICTIONARY(value) ((Toy_LiteralDictionary*)((value).as.dictionary))
#define TOY_AS_FUNCTION(value) ((value).as.function)
#define TOY_AS_FUNCTION_NATIVE(value) ((value).as.function.inner.native)
#define TOY_AS_FUNCTION_HOOK(value) ((value).as.function.inner.hook)
#define TOY_AS_IDENTIFIER(value) ((value).as.identifier.ptr)
#define TOY_AS_TYPE(value) ((value).as.type)
#define TOY_AS_OPAQUE(value) ((value).as.opaque.ptr)
/*!
The following macros are used to create a new literal, with the given `value` as it's internal value.
* `TOY_TO_NULL_LITERAL` - does not need parantheses
* `TOY_TO_BOOLEAN_LITERAL(value)`
* `TOY_TO_INTEGER_LITERAL(value)`
* `TOY_TO_FLOAT_LITERAL(value)`
* `TOY_TO_STRING_LITERAL(value)`
* `TOY_TO_ARRAY_LITERAL(value)`
* `TOY_TO_DICTIONARY_LITERAL(value)`
* `TOY_TO_FUNCTION_LITERAL(value, l)` - `l` represents the length of the bytecode passed as `value`
* `TOY_TO_FUNCTION_NATIVE_LITERAL(value)`
* `TOY_TO_FUNCTION_HOOK_LITERAL(value)`
* `TOY_TO_IDENTIFIER_LITERAL(value)`
* `TOY_TO_TYPE_LITERAL(value, c)` - `c` is the true of the type should be const
* `TOY_TO_OPAQUE_LITERAL(value, t)` - `t` is the integer tag
!*/
#define TOY_TO_NULL_LITERAL ((Toy_Literal){{ .integer = 0 }, TOY_LITERAL_NULL})
#define TOY_TO_BOOLEAN_LITERAL(value) ((Toy_Literal){{ .boolean = value }, TOY_LITERAL_BOOLEAN})
#define TOY_TO_INTEGER_LITERAL(value) ((Toy_Literal){{ .integer = value }, TOY_LITERAL_INTEGER})
#define TOY_TO_FLOAT_LITERAL(value) ((Toy_Literal){{ .number = value }, TOY_LITERAL_FLOAT})
#define TOY_TO_STRING_LITERAL(value) ((Toy_Literal){{ .string = { .ptr = value }},TOY_LITERAL_STRING})
#define TOY_TO_ARRAY_LITERAL(value) ((Toy_Literal){{ .array = value }, TOY_LITERAL_ARRAY})
#define TOY_TO_DICTIONARY_LITERAL(value) ((Toy_Literal){{ .dictionary = value }, TOY_LITERAL_DICTIONARY})
#define TOY_TO_FUNCTION_LITERAL(value) ((Toy_Literal){{ .function = { .inner = { .ptr = value }, .scope = NULL }}, TOY_LITERAL_FUNCTION})
#define TOY_TO_FUNCTION_NATIVE_LITERAL(value) ((Toy_Literal){{ .function = { .inner = { .native = value }, .scope = NULL }}, TOY_LITERAL_FUNCTION_NATIVE})
#define TOY_TO_FUNCTION_HOOK_LITERAL(value) ((Toy_Literal){{ .function = { .inner = { .hook = value }, .scope = NULL }}, TOY_LITERAL_FUNCTION_HOOK})
#define TOY_TO_IDENTIFIER_LITERAL(value) Toy_private_toIdentifierLiteral(value)
#define TOY_TO_TYPE_LITERAL(value, c) ((Toy_Literal){{ .type = { .typeOf = value, .constant = c, .subtypes = NULL, .capacity = 0, .count = 0 }}, TOY_LITERAL_TYPE})
#define TOY_TO_OPAQUE_LITERAL(value, t) ((Toy_Literal){{ .opaque = { .ptr = value, .tag = t }}, TOY_LITERAL_OPAQUE})
//BUGFIX: For blank indexing - not for general use
#define TOY_IS_INDEX_BLANK(value) ((value).type == TOY_LITERAL_INDEX_BLANK)
#define TOY_TO_INDEX_BLANK_LITERAL ((Toy_Literal){{ .integer = 0 }, TOY_LITERAL_INDEX_BLANK})
/*!
## More Defined Macros
The following macros are utilities used throughout Toy's internals, and are available for the user as well.
!*/
/*!
### TOY_IS_TRUTHY(x)
Returns true of the literal `x` is truthy, otherwise it returns false.
Currently, every value is considered truthy except `false`, which is falsy and `null`, which is neither true or false.
!*/
#define TOY_IS_TRUTHY(x) Toy_private_isTruthy(x)
/*!
### TOY_AS_FUNCTION_BYTECODE_LENGTH(lit)
Returns the length of a Toy function's bytecode.
This macro is only valid on `TOY_LITERAL_FUNCTION`.
!*/
#define TOY_AS_FUNCTION_BYTECODE_LENGTH(lit) (Toy_lengthRefFunction((lit).inner.ptr))
/*!
### TOY_MAX_STRING_LENGTH
The maximum length of a string in Toy, which is 4096 bytes by default. This can be changed at compile time, but the results of doing so are not officially supported.
!*/
#define TOY_MAX_STRING_LENGTH 4096
/*!
### TOY_HASH_I(lit)
Identifiers are the names of values within Toy; to speed up execution, their "hash value" is computed at compile time and stored within them. Use this to access it, if needed.
This macro is only valid on `TOY_LITERAL_IDENTIFIER`.
!*/
#define TOY_HASH_I(lit) ((lit).as.identifier.hash)
/*!
### TOY_TYPE_PUSH_SUBTYPE(lit, subtype)
When building a complex type, such as the type of an array or dictionary, you may need to specify inner types. Use this to push a `subtype`. calling `Toy_freeLiteral()` on the outermost type should clean up all inner types, as expected.
This macro returns the index of the newly pushed value within it's parent.
This macro is only valid on `TOY_LITERAL_TYPE`, for both `type` and `subtype`.
!*/
#define TOY_TYPE_PUSH_SUBTYPE(lit, subtype) Toy_private_typePushSubtype(lit, subtype)
/*!
### TOY_GET_OPAQUE_TAG(o)
Returns the value of the opaque `o`'s tag.
This macro is only valid on `TOY_LITERAL_OPAQUE`.
!*/
#define TOY_GET_OPAQUE_TAG(o) o.as.opaque.tag
/*!
## Defined Functions
!*/
/*!
### void Toy_freeLiteral(Toy_Literal literal)
This function frees the given literal's memory. Any internal pointers are now invalid.
This function should be called on EVERY literal when it is no longer needed, regardless of type.
!*/
TOY_API void Toy_freeLiteral(Toy_Literal literal);
/*!
### Toy_Literal Toy_copyLiteral(Toy_Literal original)
This function returns a copy of the given literal. Literals should never be copied without this function, as it handles a lot of internal memory allocations.
!*/
TOY_API Toy_Literal Toy_copyLiteral(Toy_Literal original);
/*!
### bool Toy_literalsAreEqual(Toy_Literal lhs, Toy_Literal rhs)
This checks to see if two given literals are equal.
When an integer and a float are compared, the integer is cooerced into a float for the duration of the call.
Arrays or dictionaries are equal only if their keys and values all equal. Likewise, types only equal if all subtypes are equal, in order.
Functions and opaques are never equal to anything, while values with the type `TOY_LITERAL_ANY` are always equal.
!*/
TOY_API bool Toy_literalsAreEqual(Toy_Literal lhs, Toy_Literal rhs);
/*!
### int Toy_hashLiteral(Toy_Literal lit)
This finds the hash of a literal, for various purposes. Different hashing algorithms are used for different types, and some types can't be hashed at all.
types that can't be hashed are
* all kinds of functions
* type
* opaque
* any
In the case of identifiers, their hashes are precomputed on creation and are stored within the literal.
!*/
TOY_API int Toy_hashLiteral(Toy_Literal lit);
/*!
### void Toy_printLiteral(Toy_Literal literal)
This wraps a call to `Toy_printLiteralCustom`, with a printf-stdout wrapper as `printFn`.
!*/
TOY_API void Toy_printLiteral(Toy_Literal literal);
/*!
### void Toy_printLiteralCustom(Toy_Literal literal, PrintFn printFn)
This function passes the string representation of `literal` to `printFn`.
This function is not thread safe - due to the loopy and recursive nature of printing compound values, this function uses some globally persistent variables.
!*/
TOY_API void Toy_printLiteralCustom(Toy_Literal literal, Toy_PrintFn);
/*!
### bool Toy_private_isTruthy(Toy_Literal x)
Utilized by the `TOY_IS_TRUTHY` macro.
Private functions are not intended for general use.
!*/
TOY_API bool Toy_private_isTruthy(Toy_Literal x);
/*!
### bool Toy_private_toIdentifierLiteral(Toy_RefString* ptr)
Utilized by the `TOY_TO_IDENTIFIER_LITERAL` macro.
Private functions are not intended for general use.
!*/
TOY_API Toy_Literal Toy_private_toIdentifierLiteral(Toy_RefString* ptr);
/*!
### bool Toy_private_typePushSubtype(Toy_Literal* lit, Toy_Literal subtype)
Utilized by the `TOY_TYPE_PUSH_SUBTYPE` macro.
Private functions are not intended for general use.
!*/
TOY_API Toy_Literal* Toy_private_typePushSubtype(Toy_Literal* lit, Toy_Literal subtype);
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#include "toy_literal_array.h"
#include "toy_memory.h"
#include <stdio.h>
#include <string.h>
//exposed functions
void Toy_initLiteralArray(Toy_LiteralArray* array) {
array->capacity = 0;
array->count = 0;
array->literals = NULL;
}
void Toy_freeLiteralArray(Toy_LiteralArray* array) {
//clean up memory
for(int i = 0; i < array->count; i++) {
Toy_freeLiteral(array->literals[i]);
}
if (array->capacity > 0) {
TOY_FREE_ARRAY(Toy_Literal, array->literals, array->capacity);
Toy_initLiteralArray(array);
}
}
int Toy_pushLiteralArray(Toy_LiteralArray* array, Toy_Literal literal) {
if (array->capacity < array->count + 1) {
int oldCapacity = array->capacity;
array->capacity = TOY_GROW_CAPACITY(oldCapacity);
array->literals = TOY_GROW_ARRAY(Toy_Literal, array->literals, oldCapacity, array->capacity);
}
array->literals[array->count] = Toy_copyLiteral(literal);
return array->count++;
}
Toy_Literal Toy_popLiteralArray(Toy_LiteralArray* array) {
if (array->count <= 0) {
return TOY_TO_NULL_LITERAL;
}
//get the return
Toy_Literal ret = array->literals[array->count-1];
//null the existing data
array->literals[array->count-1] = TOY_TO_NULL_LITERAL;
array->count--;
return ret;
}
//find a literal in the array that matches the "literal" argument
int Toy_private_findLiteralIndex(Toy_LiteralArray* array, Toy_Literal literal) {
for (int i = 0; i < array->count; i++) {
//not the same type
if (array->literals[i].type != literal.type) {
continue;
}
//types match?
if (Toy_literalsAreEqual(array->literals[i], literal)) {
return i;
}
}
return -1;
}
bool Toy_setLiteralArray(Toy_LiteralArray* array, Toy_Literal index, Toy_Literal value) {
if (!TOY_IS_INTEGER(index)) {
return false;
}
int idx = TOY_AS_INTEGER(index);
if (idx < 0 || idx >= array->count) {
return false;
}
Toy_freeLiteral(array->literals[idx]);
array->literals[idx] = Toy_copyLiteral(value);
return true;
}
Toy_Literal Toy_getLiteralArray(Toy_LiteralArray* array, Toy_Literal index) {
if (!TOY_IS_INTEGER(index)) {
return TOY_TO_NULL_LITERAL;
}
int idx = TOY_AS_INTEGER(index);
if (idx < 0 || idx >= array->count) {
return TOY_TO_NULL_LITERAL;
}
return Toy_copyLiteral(array->literals[idx]);
}
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#pragma once
/*!
# literal_array.h
This header defines the array structure, which manages a series of `Toy_Literal` instances in sequential memory. The array does not take ownership of given literals, instead it makes an internal copy.
The array type is one of two fundemental data structures used throughout Toy - the other is the dictionary.
!*/
#include "toy_common.h"
#include "toy_literal.h"
typedef struct Toy_LiteralArray {
Toy_Literal* literals;
int capacity;
int count;
} Toy_LiteralArray;
/*!
## Defined Functions
!*/
/*
### void Toy_initLiteralArray(Toy_LiteralArray* array)
This function initializes a `Toy_LiteralArray` pointed to by `array`.
*/
TOY_API void Toy_initLiteralArray(Toy_LiteralArray* array);
/*!
### void Toy_freeLiteralArray(Toy_LiteralArray* array)
This function frees a `Toy_LiteralArray` pointed to by `array`. Every literal within is passed to `Toy_freeLiteral()` before its memory is released.
!*/
TOY_API void Toy_freeLiteralArray(Toy_LiteralArray* array);
/*!
### int Toy_pushLiteralArray(Toy_LiteralArray* array, Toy_Literal literal)
This function adds a new `literal` to the end of the `array`, growing the array's internal buffer if needed.
This function returns the index of the inserted value.
!*/
TOY_API int Toy_pushLiteralArray(Toy_LiteralArray* array, Toy_Literal literal);
/*!
### Toy_Literal Toy_popLiteralArray(Toy_LiteralArray* array)
This function removes the literal at the end of the `array`, and returns it.
!*/
TOY_API Toy_Literal Toy_popLiteralArray(Toy_LiteralArray* array);
/*!
### bool Toy_setLiteralArray(Toy_LiteralArray* array, Toy_Literal index, Toy_Literal value)
This function frees the literal at the position represented by the integer literal `index`, and stores `value` in its place.
This function returns true on success, otherwise it returns false.
!*/
TOY_API bool Toy_setLiteralArray(Toy_LiteralArray* array, Toy_Literal index, Toy_Literal value);
/*!
### Toy_Literal Toy_getLiteralArray(Toy_LiteralArray* array, Toy_Literal index)
This function returns the literal at the position represented by the integer literal `index`, or returns a null literal if none is found.
If `index` is not an integer literal or is out of bounds, this function returns a null literal.
!*/
TOY_API Toy_Literal Toy_getLiteralArray(Toy_LiteralArray* array, Toy_Literal index);
/*!
### int Toy_private_findLiteralIndex(Toy_LiteralArray* array, Toy_Literal literal)
This function scans through the array, and returns the index of the first element that matches the given `literal`, otherwise it returns -1.
Private functions are not intended for general use.
!*/
int Toy_private_findLiteralIndex(Toy_LiteralArray* array, Toy_Literal literal);
//TODO: add a function to get the capacity & count
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#include "toy_literal_dictionary.h"
#include "toy_memory.h"
#include "toy_console_colors.h"
#include <stdio.h>
//util functions
static void setEntryValues(Toy_private_dictionary_entry* entry, Toy_Literal key, Toy_Literal value) {
//much simpler now
Toy_freeLiteral(entry->key);
entry->key = Toy_copyLiteral(key);
Toy_freeLiteral(entry->value);
entry->value = Toy_copyLiteral(value);
}
static Toy_private_dictionary_entry* getEntryArray(Toy_private_dictionary_entry* array, int capacity, Toy_Literal key, unsigned int hash, bool mustExist) {
if (!capacity) {
return NULL;
}
//find "key", starting at index
int index = hash % capacity;
int start = index;
//increment once, so it can't equal start
if (++index >= capacity) {
index = 0;
}
//literal probing and collision checking
while (index != start) { //WARNING: this is the only function allowed to retrieve an entry from the array
Toy_private_dictionary_entry* entry = &array[index];
if (TOY_IS_NULL(entry->key)) { //if key is empty, it's either empty or tombstone
if (TOY_IS_NULL(entry->value) && !mustExist) {
//found a truly empty bucket
return entry;
}
//else it's a tombstone - ignore
} else {
if (Toy_literalsAreEqual(key, entry->key)) {
return entry;
}
}
if (++index >= capacity) {
index = 0;
}
//index = (index + 1) % capacity;
}
return NULL;
}
static void adjustEntryCapacity(Toy_private_dictionary_entry** dictionaryHandle, int oldCapacity, int capacity) {
//new entry space
Toy_private_dictionary_entry* newEntries = TOY_ALLOCATE(Toy_private_dictionary_entry, capacity);
for (int i = 0; i < capacity; i++) {
newEntries[i].key = TOY_TO_NULL_LITERAL;
newEntries[i].value = TOY_TO_NULL_LITERAL;
}
//move the old array into the new one
for (int i = 0; i < oldCapacity; i++) {
if (TOY_IS_NULL((*dictionaryHandle)[i].key)) {
continue;
}
//place the key and value in the new array (reusing string memory)
Toy_private_dictionary_entry* entry = getEntryArray(newEntries, capacity, TOY_TO_NULL_LITERAL, Toy_hashLiteral((*dictionaryHandle)[i].key), false);
entry->key = (*dictionaryHandle)[i].key;
entry->value = (*dictionaryHandle)[i].value;
}
//clear the old array
if (oldCapacity > 0) {
TOY_FREE_ARRAY(Toy_private_dictionary_entry, *dictionaryHandle, oldCapacity);
}
*dictionaryHandle = newEntries;
}
static bool setEntryArray(Toy_private_dictionary_entry** dictionaryHandle, int* capacityPtr, int contains, Toy_Literal key, Toy_Literal value, int hash) {
//expand array if needed
if (contains + 1 > *capacityPtr * TOY_DICTIONARY_MAX_LOAD) {
int oldCapacity = *capacityPtr;
*capacityPtr = TOY_GROW_CAPACITY(*capacityPtr);
adjustEntryCapacity(dictionaryHandle, oldCapacity, *capacityPtr); //custom rather than automatic reallocation
}
Toy_private_dictionary_entry* entry = getEntryArray(*dictionaryHandle, *capacityPtr, key, hash, false);
//true = contains increase
if (TOY_IS_NULL(entry->key)) {
setEntryValues(entry, key, value);
return true;
}
else {
setEntryValues(entry, key, value);
return false;
}
return false;
}
static void freeEntry(Toy_private_dictionary_entry* entry) {
Toy_freeLiteral(entry->key);
Toy_freeLiteral(entry->value);
entry->key = TOY_TO_NULL_LITERAL;
entry->value = TOY_TO_NULL_LITERAL;
}
static void freeEntryArray(Toy_private_dictionary_entry* array, int capacity) {
if (array == NULL) {
return;
}
for (int i = 0; i < capacity; i++) {
if (!TOY_IS_NULL(array[i].key)) {
freeEntry(&array[i]);
}
}
TOY_FREE_ARRAY(Toy_private_dictionary_entry, array, capacity);
}
//exposed functions
void Toy_initLiteralDictionary(Toy_LiteralDictionary* dictionary) {
dictionary->entries = NULL;
dictionary->capacity = 0;
dictionary->contains = 0;
dictionary->count = 0;
dictionary->capacity = 0;
}
void Toy_freeLiteralDictionary(Toy_LiteralDictionary* dictionary) {
if (dictionary->capacity > 0) {
freeEntryArray(dictionary->entries, dictionary->capacity);
dictionary->capacity = 0;
dictionary->contains = 0;
}
}
void Toy_setLiteralDictionary(Toy_LiteralDictionary* dictionary, Toy_Literal key, Toy_Literal value) {
if (TOY_IS_NULL(key)) {
fprintf(stderr, TOY_CC_ERROR "Dictionaries can't have null keys (set)\n" TOY_CC_RESET);
return;
}
//BUGFIX: Can't hash a function
if (TOY_IS_FUNCTION(key) || TOY_IS_FUNCTION_NATIVE(key) || TOY_IS_FUNCTION_HOOK(key)) {
fprintf(stderr, TOY_CC_ERROR "Dictionaries can't have function keys (set)\n" TOY_CC_RESET);
return;
}
if (TOY_IS_OPAQUE(key)) {
fprintf(stderr, TOY_CC_ERROR "Dictionaries can't have opaque keys (set)\n" TOY_CC_RESET);
return;
}
const int increment = setEntryArray(&dictionary->entries, &dictionary->capacity, dictionary->contains, key, value, Toy_hashLiteral(key));
if (increment) {
dictionary->contains++;
dictionary->count++;
}
}
Toy_Literal Toy_getLiteralDictionary(Toy_LiteralDictionary* dictionary, Toy_Literal key) {
if (TOY_IS_NULL(key)) {
fprintf(stderr, TOY_CC_ERROR "Dictionaries can't have null keys (get)\n" TOY_CC_RESET);
return TOY_TO_NULL_LITERAL;
}
//BUGFIX: Can't hash a function
if (TOY_IS_FUNCTION(key) || TOY_IS_FUNCTION_NATIVE(key) || TOY_IS_FUNCTION_HOOK(key)) {
fprintf(stderr, TOY_CC_ERROR "Dictionaries can't have function keys (get)\n" TOY_CC_RESET);
return TOY_TO_NULL_LITERAL;
}
if (TOY_IS_OPAQUE(key)) {
fprintf(stderr, TOY_CC_ERROR "Dictionaries can't have opaque keys (get)\n" TOY_CC_RESET);
return TOY_TO_NULL_LITERAL;
}
Toy_private_dictionary_entry* entry = getEntryArray(dictionary->entries, dictionary->capacity, key, Toy_hashLiteral(key), true);
if (entry != NULL) {
return Toy_copyLiteral(entry->value);
}
else {
return TOY_TO_NULL_LITERAL;
}
}
void Toy_removeLiteralDictionary(Toy_LiteralDictionary* dictionary, Toy_Literal key) {
if (TOY_IS_NULL(key)) {
fprintf(stderr, TOY_CC_ERROR "Dictionaries can't have null keys (remove)\n" TOY_CC_RESET);
return;
}
//BUGFIX: Can't hash a function
if (TOY_IS_FUNCTION(key) || TOY_IS_FUNCTION_NATIVE(key) || TOY_IS_FUNCTION_HOOK(key)) {
fprintf(stderr, TOY_CC_ERROR "Dictionaries can't have function keys (remove)\n" TOY_CC_RESET);
return;
}
if (TOY_IS_OPAQUE(key)) {
fprintf(stderr, TOY_CC_ERROR "Dictionaries can't have opaque keys (remove)\n" TOY_CC_RESET);
return;
}
Toy_private_dictionary_entry* entry = getEntryArray(dictionary->entries, dictionary->capacity, key, Toy_hashLiteral(key), true);
if (entry != NULL) {
freeEntry(entry);
entry->value = TOY_TO_BOOLEAN_LITERAL(true); //tombstone
dictionary->count--;
}
}
bool Toy_existsLiteralDictionary(Toy_LiteralDictionary* dictionary, Toy_Literal key) {
//null & not tombstoned
Toy_private_dictionary_entry* entry = getEntryArray(dictionary->entries, dictionary->capacity, key, Toy_hashLiteral(key), false);
return entry != NULL && !(TOY_IS_NULL(entry->key) && TOY_IS_NULL(entry->value));
}
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#pragma once
/*!
# toy_literal_dictionary.h
This header defines the dictionary structure (as well as the private entry structure), which manages a series of `Toy_Literal` instances stored in a key-value hash map. The dictionary does not take ownership of given literals, instead it makes an internal copy.
The dictionary type is one of two fundemental data structures used throughout Toy - the other is the array.
!*/
#include "toy_common.h"
#include "toy_literal.h"
/*!
## Defined Macros
!*/
/*!
### TOY_DICTIONARY_MAX_LOAD
If the contents of a dictionary exceeds this percentage of it's capacity, then a new buffer is created, the old contents are copied over one-by-one, and the original buffer is freed.
Since this process can be memory and time intensive, a configurable macro is used to allow for fine-grained control across the lang.
The current default value is `0.75`, representing 75% capacity.
!*/
//TODO: benchmark this
#define TOY_DICTIONARY_MAX_LOAD 0.75
typedef struct Toy_private_dictionary_entry {
Toy_Literal key;
Toy_Literal value;
} Toy_private_dictionary_entry;
typedef struct Toy_LiteralDictionary {
Toy_private_dictionary_entry* entries;
int capacity;
int count;
int contains; //count + tombstones, for internal use
} Toy_LiteralDictionary;
/*!
## Defined Functions
!*/
/*!
### void Toy_initLiteralDictionary(Toy_LiteralDictionary* dictionary)
This function initializes the `Toy_LiteralDictionary` pointed to by `dictionary`.
!*/
TOY_API void Toy_initLiteralDictionary(Toy_LiteralDictionary* dictionary);
/*!
### void Toy_freeLiteralDictionary(Toy_LiteralDictionary* dictionary)
This function frees a `Toy_LiteralDictionary` pointed to by `dictionary`. Every literal within is passed to `Toy_freeLiteral()` before its memory is released.
!*/
TOY_API void Toy_freeLiteralDictionary(Toy_LiteralDictionary* dictionary);
/*!
### void Toy_setLiteralDictionary(Toy_LiteralDictionary* dictionary, Toy_Literal key, Toy_Literal value)
This function inserts the given key-value pair of literals into `dictionary`, creating it if it doesn't exist, or freeing and overwriting it if `key` is already present. This function may also expand the memory buffer if needed.
When expanding the memory buffer, a full copy of the existing dictionary's contents is created - this can be memory intensive.
Literal functions and opaques cannot be used as keys.
!*/
TOY_API void Toy_setLiteralDictionary(Toy_LiteralDictionary* dictionary, Toy_Literal key, Toy_Literal value);
/*!
### Toy_Literal Toy_getLiteralDictionary(Toy_LiteralDictionary* dictionary, Toy_Literal key)
This function returns the value of the literal within `dictionary` identified by `key`, or a null literal if it doesn't exist.
Literal functions and opaques cannot be used as keys.
!*/
TOY_API Toy_Literal Toy_getLiteralDictionary(Toy_LiteralDictionary* dictionary, Toy_Literal key);
/*!
### void Toy_removeLiteralDictionary(Toy_LiteralDictionary* dictionary, Toy_Literal key)
This function removes the key-value pair of literals from `dictionary` identified by `key`, if it exists.
Literal functions and opaques cannot be used as keys.
!*/
TOY_API void Toy_removeLiteralDictionary(Toy_LiteralDictionary* dictionary, Toy_Literal key);
/*!
### bool Toy_existsLiteralDictionary(Toy_LiteralDictionary* dictionary, Toy_Literal key)
This function returns true if the key-value pair identified by `key` exists within `dictionary`, otherwise it returns false.
!*/
TOY_API bool Toy_existsLiteralDictionary(Toy_LiteralDictionary* dictionary, Toy_Literal key);
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#include "toy_memory.h"
#include "toy_refstring.h"
#include "toy_reffunction.h"
#include "toy_console_colors.h"
#include <stdio.h>
#include <stdlib.h>
//default allocator
void* Toy_private_defaultMemoryAllocator(void* pointer, size_t oldSize, size_t newSize) {
//causes issues, so just skip out with a NO-OP (DISABLED for performance reasons)
// if (newSize == 0 && oldSize == 0) {
// return NULL;
// }
if (newSize == 0) {
free(pointer);
return NULL;
}
void* mem = realloc(pointer, newSize);
if (mem == NULL) {
fprintf(stderr, TOY_CC_ERROR "[internal] Memory allocation error (requested %d, replacing %d)\n" TOY_CC_RESET, (int)newSize, (int)oldSize);
return NULL;
}
return mem;
}
//static variables
static Toy_MemoryAllocatorFn allocator = Toy_private_defaultMemoryAllocator;
//exposed API
void* Toy_reallocate(void* pointer, size_t oldSize, size_t newSize) {
return allocator(pointer, oldSize, newSize);
}
void Toy_setMemoryAllocator(Toy_MemoryAllocatorFn fn) {
if (fn == NULL) {
fprintf(stderr, TOY_CC_ERROR "[internal] Memory allocator error (can't be null)\n" TOY_CC_RESET);
exit(-1);
}
if (fn == Toy_reallocate) {
fprintf(stderr, TOY_CC_ERROR "[internal] Memory allocator error (can't loop the Toy_reallocate function)\n" TOY_CC_RESET);
exit(-1);
}
allocator = fn;
Toy_setRefStringAllocatorFn(fn);
Toy_setRefFunctionAllocatorFn(fn);
}
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#pragma once
/*!
# toy_memory.h
This header defines all of the memory management utilities. Any and all heap-based memory management goes through these utilities.
A default memory allocator function is used internally, but it can be overwritten for diagnostic and platform related purposes.
!*/
#include "toy_common.h"
/*!
## Defined Macros
!*/
/*!
### TOY_GROW_CAPACITY(capacity)
This macro calculates, in place, what size of memory should be allocated based on the previous size.
!*/
#define TOY_GROW_CAPACITY(capacity) ((capacity) < 8 ? 8 : (capacity) * 2)
/*!
### TOY_GROW_CAPACITY_FAST(capacity)
This macro calculates, in place, what size of memory should be allocated based on the previous size. It grows faster than `TOY_GROW_CAPACITY`.
!*/
#define TOY_GROW_CAPACITY_FAST(capacity) ((capacity) < 32 ? 32 : (capacity) * 2)
/*
### TOY_ALLOCATE(type, count)
This macro wraps `Toy_reallocate()`, which itself calls the allocator function. `type` is the type that will be allocated, and `count` is the number which will be needed (usually calculated with `TOY_GROW_CAPACITY`).
This returns a pointer of `type`.
*/
#define TOY_ALLOCATE(type, count) ((type*)Toy_reallocate(NULL, 0, sizeof(type) * (count)))
/*!
### TOY_FREE(type, pointer)
This macro wraps `Toy_reallocate()`, which itself calls the allocator function. `type` is the type that will be freed, and `pointer` is to what is being freed. This should only be used when a single element has been allocated, as opposed to an array.
!*/
#define TOY_FREE(type, pointer) Toy_reallocate(pointer, sizeof(type), 0)
/*!
### TOY_FREE_ARRAY(type, pointer, oldCount)
This macro wraps `Toy_reallocate()`, which itself calls the allocator function. `type` is the type that will be freed, `pointer` is a reference to what is being freed, and `oldCount` is the size of the array being freed. This should only be used when an array has been allocated, as opposed to a single element.
!*/
#define TOY_FREE_ARRAY(type, pointer, oldCount) Toy_reallocate((type*)pointer, sizeof(type) * (oldCount), 0)
/*!
### TOY_GROW_ARRAY(type, pointer, oldCount, count)
This macro wraps `Toy_reallocate()`, which itself calls the allocator function. `type` is the type that is being operated on, `pointer` is what is being resized, `oldCount` is the previous size of the array and `count` is the new size of the array (usually calculated with `TOY_GROW_CAPACITY`).
This returns a pointer of `type`.
!*/
#define TOY_GROW_ARRAY(type, pointer, oldCount, count) (type*)Toy_reallocate((type*)pointer, sizeof(type) * (oldCount), sizeof(type) * (count))
/*!
### TOY_SHRINK_ARRAY(type, pointer, oldCount, count)
This macro wraps `Toy_reallocate()`, which itself calls the allocator function. `type` is the type that is being operated on, `pointer` is what is being resized, `oldCount` is the previous size of the array and `count` is the new size of the array.
This returns a pointer of `type`.
!*/
#define TOY_SHRINK_ARRAY(type, pointer, oldCount, count) (type*)Toy_reallocate((type*)pointer, sizeof(type) * (oldCount), sizeof(type) * (count))
/*!
## Defined Interfaces
!*/
/*!
### typedef void* (*Toy_MemoryAllocatorFn)(void* pointer, size_t oldSize, size_t newSize)
This function interface is used for defining any memory allocator functions.
Any and all memory allocator functions should:
* Take a `pointer` to a previously allocated block of memory, or `NULL`
* Take the `oldSize`, which is the previous size of the `pointer` allocated, in bytes (`oldSize` can be 0)
* Take the `newSize`, which is the new size of the buffer to be allocaated, in bytes (`newSize` can be 0)
* Return the newly allocated buffer, or `NULL` if `newSize` is zero
* Return `NULL` on error
!*/
typedef void* (*Toy_MemoryAllocatorFn)(void* pointer, size_t oldSize, size_t newSize);
/*!
## Defined Functions
!*/
/*!
### TOY_API void* Toy_reallocate(void* pointer, size_t oldSize, size_t newSize)
This function shouldn't be called directly. Instead, use one of the given macros.
This function wraps a call to the internal assigned memory allocator.
!*/
TOY_API void* Toy_reallocate(void* pointer, size_t oldSize, size_t newSize);
/*!
### void Toy_setMemoryAllocator(Toy_MemoryAllocatorFn)
This function sets the memory allocator, replacing the default memory allocator.
This function also overwrites any given refstring and reffunction memory allocators, see [toy_refstring.h](toy_refstring_h.md).
!*/
TOY_API void Toy_setMemoryAllocator(Toy_MemoryAllocatorFn);
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#pragma once
typedef enum Toy_Opcode {
TOY_OP_EOF,
//do nothing
TOY_OP_PASS,
//basic statements
TOY_OP_ASSERT,
TOY_OP_PRINT,
//data
TOY_OP_LITERAL,
TOY_OP_LITERAL_LONG, //for more than 256 literals in a chunk
TOY_OP_LITERAL_RAW, //forcibly get the raw value of the literal
//arithmetic operators
TOY_OP_NEGATE,
TOY_OP_ADDITION,
TOY_OP_SUBTRACTION,
TOY_OP_MULTIPLICATION,
TOY_OP_DIVISION,
TOY_OP_MODULO,
TOY_OP_GROUPING_BEGIN,
TOY_OP_GROUPING_END,
//variable stuff
TOY_OP_SCOPE_BEGIN,
TOY_OP_SCOPE_END,
TOY_OP_TYPE_DECL_removed,
TOY_OP_TYPE_DECL_LONG_removed,
TOY_OP_VAR_DECL, //declare a variable to be used (as a literal)
TOY_OP_VAR_DECL_LONG, //declare a variable to be used (as a long literal)
TOY_OP_FN_DECL, //declare a function to be used (as a literal)
TOY_OP_FN_DECL_LONG, //declare a function to be used (as a long literal)
TOY_OP_VAR_ASSIGN, //assign to a literal
TOY_OP_VAR_ADDITION_ASSIGN,
TOY_OP_VAR_SUBTRACTION_ASSIGN,
TOY_OP_VAR_MULTIPLICATION_ASSIGN,
TOY_OP_VAR_DIVISION_ASSIGN,
TOY_OP_VAR_MODULO_ASSIGN,
TOY_OP_TYPE_CAST, //temporarily change a type of an atomic value
TOY_OP_TYPE_OF, //get the type of a variable
TOY_OP_IMPORT,
TOY_OP_EXPORT_removed,
//for indexing
TOY_OP_INDEX,
TOY_OP_INDEX_ASSIGN,
TOY_OP_INDEX_ASSIGN_INTERMEDIATE,
TOY_OP_DOT,
//comparison of values
TOY_OP_COMPARE_EQUAL,
TOY_OP_COMPARE_NOT_EQUAL,
TOY_OP_COMPARE_LESS,
TOY_OP_COMPARE_LESS_EQUAL,
TOY_OP_COMPARE_GREATER,
TOY_OP_COMPARE_GREATER_EQUAL,
TOY_OP_INVERT, //for booleans
//logical operators
TOY_OP_AND,
TOY_OP_OR,
//jumps, and conditional jumps (absolute)
TOY_OP_JUMP,
TOY_OP_IF_FALSE_JUMP,
TOY_OP_FN_CALL,
TOY_OP_FN_RETURN,
//pop the stack at the end of a complex statement
TOY_OP_POP_STACK,
//ternary shorthand
TOY_OP_TERNARY,
//meta
TOY_OP_FN_END, //different from SECTION_END
TOY_OP_SECTION_END = 255,
//TODO: add more
//prefix & postfix signals (used internally)
TOY_OP_PREFIX,
TOY_OP_POSTFIX,
} Toy_Opcode;
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#pragma once
/*!
# toy_parser.h
This header defines the parser structure which, after being initialized with a lexer produces a series of abstract syntax trees to be passed to the compiler. The following is a utility function provided by [repl_tools.h](repl_tools_h.md), demonstrating how to use the parser.
```c
//generate bytecode from a given string
const unsigned char* Toy_compileString(const char* source, size_t* size) {
//declare the relevant instances
Toy_Lexer lexer;
Toy_Parser parser;
Toy_Compiler compiler;
//initialize each of them
Toy_initLexer(&lexer, source);
Toy_initParser(&parser, &lexer);
Toy_initCompiler(&compiler);
//when the parser returns NULL, it is finished
Toy_ASTNode* node = Toy_scanParser(&parser);
while(node != NULL) {
//if the parser returns an error node, clean up and exit gracefully
if (node->type == TOY_AST_NODE_ERROR) {
Toy_freeASTNode(node);
Toy_freeCompiler(&compiler);
Toy_freeParser(&parser);
//no need to clean the lexer
return NULL;
}
//write the node to the compiler
Toy_writeCompiler(&compiler, node);
Toy_freeASTNode(node);
//grab the next node
node = Toy_scanParser(&parser);
}
//get the bytecode to be returned
const unsigned char* tb = Toy_collateCompiler(&compiler, size);
//cleanup
Toy_freeCompiler(&compiler);
Toy_freeParser(&parser);
//no need to clean the lexer
//finally
return tb;
}
```
!*/
#include "toy_common.h"
#include "toy_lexer.h"
#include "toy_ast_node.h"
//Parsers are bound to a lexer, and turn the outputted tokens into AST nodes
typedef struct {
Toy_Lexer* lexer;
bool error; //I've had an error
bool panic; //I am processing an error
//track the last two outputs from the lexer
Toy_Token current;
Toy_Token previous;
} Toy_Parser;
/*!
## Defined Functions
!*/
/*!
### void Toy_initParser(Toy_Parser* parser, Toy_Lexer* lexer)
This function initializes a `Toy_Parser`, binding the given `Toy_Lexer` to it.
!*/
TOY_API void Toy_initParser(Toy_Parser* parser, Toy_Lexer* lexer);
/*!
### void Toy_freeParser(Toy_Parser* parser)
This function frees a `Toy_Parser` once its task is completed.
!*/
TOY_API void Toy_freeParser(Toy_Parser* parser);
/*!
### Toy_ASTNode* Toy_scanParser(Toy_Parser* parser)
This function returns an abstract syntax tree representing part of the program, or an error node. The abstract syntax tree must be passed to `Toy_writeCompiler()` and/or `Toy_freeASTNode()`.
This function should be called repeatedly until it returns `NULL`, indicating the end of the program.
!*/
TOY_API Toy_ASTNode* Toy_scanParser(Toy_Parser* parser);
/*!
### void Toy_freeASTNode(Toy_ASTNode* node)
This function cleans up any valid instance of `Toy_ASTNode` pointer passed to it. It is most commonly used to clean up the values returned by `Toy_scanParser`, after they have been passsed to `Toy_writeCompiler`, or when the node is an error node.
Note: this function is *actually* defined in toy_ast_node.h, but documented here, because this is where it matters most.
!*/
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#include "toy_reffunction.h"
#include <string.h>
//memory allocation
extern void* Toy_private_defaultMemoryAllocator(void* pointer, size_t oldSize, size_t newSize);
static Toy_RefFunctionAllocatorFn allocate = Toy_private_defaultMemoryAllocator;
void Toy_setRefFunctionAllocatorFn(Toy_RefFunctionAllocatorFn allocator) {
allocate = allocator;
}
//API
Toy_RefFunction* Toy_createRefFunction(const void* data, size_t length) {
//allocate the memory area (including metadata space)
Toy_RefFunction* refFunction = allocate(NULL, 0, sizeof(size_t) + sizeof(int) + sizeof(char) * length);
if (refFunction == NULL) {
return NULL;
}
//set the data
refFunction->refCount = 1;
refFunction->length = length;
memcpy(refFunction->data, data, refFunction->length);
return refFunction;
}
void Toy_deleteRefFunction(Toy_RefFunction* refFunction) {
//decrement, then check
refFunction->refCount--;
if (refFunction->refCount <= 0) {
allocate(refFunction, sizeof(size_t) + sizeof(int) + sizeof(char) * (refFunction->length + 1), 0);
}
}
int Toy_countRefFunction(Toy_RefFunction* refFunction) {
return refFunction->refCount;
}
size_t Toy_lengthRefFunction(Toy_RefFunction* refFunction) {
return refFunction->length;
}
Toy_RefFunction* Toy_copyRefFunction(Toy_RefFunction* refFunction) {
//Cheaty McCheater Face
refFunction->refCount++;
return refFunction;
}
Toy_RefFunction* Toy_deepCopyRefFunction(Toy_RefFunction* refFunction) {
//create a new function, with a new refCount
return Toy_createRefFunction(refFunction->data, refFunction->length);
}
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#pragma once
/*!
# toy_reffunction.h
This header defines the Toy_RefFunction structure, as well as all of the related utilities.
See [Toy_RefString](toy_refstring_h.md) for more information about the reference pattern.
This module reserves the right to instead preform a deep copy when it sees fit (this is for future debugging purposes).
!*/
#include "toy_common.h"
//the RefFunction structure
typedef struct Toy_RefFunction {
size_t length;
int refCount;
unsigned char data[];
} Toy_RefFunction;
/*!
## Defined Interfaces
!*/
/*!
### typedef void* (*Toy_RefFunctionAllocatorFn)(void* pointer, size_t oldSize, size_t newSize)
This interface conforms to Toy's memory API, and generally shouldn't be used without a good reason.
!*/
typedef void* (*Toy_RefFunctionAllocatorFn)(void* pointer, size_t oldSize, size_t newSize);
/*!
## Defined Functions
!*/
/*!
### void Toy_setRefFunctionAllocatorFn(Toy_RefFunctionAllocatorFn)
This function conforms to and is invoked by Toy's memory API, and generally shouldn't be used without a good reason.
!*/
TOY_API void Toy_setRefFunctionAllocatorFn(Toy_RefFunctionAllocatorFn);
/*!
### Toy_RefFunction* Toy_createRefFunction(const void* data, size_t length)
This function returns a new `Toy_RefFunction`, containing a copy of `data`, or `NULL` on error.
This function also sets the returned `refFunction`'s reference counter to 1.
!*/
TOY_API Toy_RefFunction* Toy_createRefFunction(const void* data, size_t length);
/*!
### void Toy_deleteRefFunction(Toy_RefFunction* refFunction)
This function reduces the `refFunction`'s reference counter by 1 and, if it reaches 0, frees the memory.
!*/
TOY_API void Toy_deleteRefFunction(Toy_RefFunction* refFunction);
/*!
### int Toy_countRefFunction(Toy_RefFunction* refFunction)
This function returns the total number of references to `refFunction`, for debugging.
!*/
TOY_API int Toy_countRefFunction(Toy_RefFunction* refFunction);
/*!
### size_t Toy_lengthRefFunction(Toy_RefFunction* refFunction)
This function returns the length of the underlying bytecode of `refFunction`.
!*/
TOY_API size_t Toy_lengthRefFunction(Toy_RefFunction* refFunction);
/*!
### Toy_RefFunction* Toy_copyRefFunction(Toy_RefFunction* refFunction)
This function increases the reference counter of `refFunction` by 1, before returning the given pointer.
This function reserves the right to create a deep copy where needed.
!*/
TOY_API Toy_RefFunction* Toy_copyRefFunction(Toy_RefFunction* refFunction);
/*!
### Toy_RefFunction* Toy_deepCopyRefFunction(Toy_RefFunction* refFunction)
This function behaves identically to `Toy_copyRefFunction`, except that it explicitly forces a deep copy of the internal memory. Using this function should be done carefully, as it incurs a performance penalty that negates the benefit of this module.
!*/
TOY_API Toy_RefFunction* Toy_deepCopyRefFunction(Toy_RefFunction* refFunction);
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#include "toy_refstring.h"
//memory allocation
extern void* Toy_private_defaultMemoryAllocator(void* pointer, size_t oldSize, size_t newSize);
static Toy_RefStringAllocatorFn allocate = Toy_private_defaultMemoryAllocator;
void Toy_setRefStringAllocatorFn(Toy_RefStringAllocatorFn allocator) {
allocate = allocator;
}
//API
Toy_RefString* Toy_createRefString(const char* cstring) {
size_t length = strlen(cstring);
return Toy_createRefStringLength(cstring, length);
}
Toy_RefString* Toy_createRefStringLength(const char* cstring, size_t length) {
//allocate the memory area (including metadata space)
Toy_RefString* refString = allocate(NULL, 0, sizeof(size_t) + sizeof(int) + sizeof(char) * (length + 1));
if (refString == NULL) {
return NULL;
}
//set the data
refString->refCount = 1;
refString->length = length;
strncpy(refString->data, cstring, refString->length);
refString->data[refString->length] = '\0'; //string terminator
return refString;
}
void Toy_deleteRefString(Toy_RefString* refString) {
//decrement, then check
refString->refCount--;
if (refString->refCount <= 0) {
allocate(refString, sizeof(size_t) + sizeof(int) + sizeof(char) * (refString->length + 1), 0);
}
}
int Toy_countRefString(Toy_RefString* refString) {
return refString->refCount;
}
size_t Toy_lengthRefString(Toy_RefString* refString) {
return refString->length;
}
Toy_RefString* Toy_copyRefString(Toy_RefString* refString) {
//Cheaty McCheater Face
refString->refCount++;
return refString;
}
Toy_RefString* Toy_deepCopyRefString(Toy_RefString* refString) {
//create a new string, with a new refCount
return Toy_createRefStringLength(refString->data, refString->length);
}
const char* Toy_toCString(Toy_RefString* refString) {
return refString->data;
}
bool Toy_equalsRefString(Toy_RefString* lhs, Toy_RefString* rhs) {
//same pointer
if (lhs == rhs) {
return true;
}
//different length
if (lhs->length != rhs->length) {
return false;
}
//same string
return strncmp(lhs->data, rhs->data, lhs->length) == 0;
}
bool Toy_equalsRefStringCString(Toy_RefString* lhs, char* cstring) {
//get the rhs length
size_t length = strlen(cstring);
//different length
if (lhs->length != length) {
return false;
}
//same string
return strncmp(lhs->data, cstring, lhs->length) == 0;
}
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#pragma once
/*!
# toy_refstring.h
This header defines the structure `Toy_RefString`, as well as all of the related utilities.
[refstring](https://github.com/Ratstail91/refstring) is a stand-alone utility written to reduce the amount of memory manipulation used within Toy. It was independantly written and tested, before being incorporated into Toy proper. As such it has it's own memory management API, which by default is tied into Toy's [core memory API](toy_memory_h.md).
Instances of `Toy_RefString` are reference counted - that is, rather than copying an existing string in memory, a pointer to the refstring is returned, and the internal reference counter is increased by 1. When the pointer is no longer needed, `Toy_DeleteRefString` can be called; this will decrement the internal reference counter by 1, and only free it when it reaches 0. This has multiple benefits, when used correctly:
* Reduced memory usage
* Faster program execution
This module reserves the right to instead preform a deep copy when it sees fit (this is for future debugging purposes).
!*/
#include "toy_common.h"
#include <string.h>
//the RefString structure
typedef struct Toy_RefString {
size_t length;
int refCount;
char data[];
} Toy_RefString;
/*!
## Defined Interfaces
!*/
/*!
### typedef void* (*Toy_RefStringAllocatorFn)(void* pointer, size_t oldSize, size_t newSize)
This interface conforms to Toy's memory API, and generally shouldn't be used without a good reason.
!*/
typedef void* (*Toy_RefStringAllocatorFn)(void* pointer, size_t oldSize, size_t newSize);
/*!
## Defined Functions
!*/
/*!
### void Toy_setRefStringAllocatorFn(Toy_RefStringAllocatorFn)
This function conforms to and is invoked by Toy's memory API, and generally shouldn't be used without a good reason.
!*/
TOY_API void Toy_setRefStringAllocatorFn(Toy_RefStringAllocatorFn);
/*!
### Toy_RefString* Toy_createRefString(const char* cstring)
This function wraps `Toy_CreateRefStringLength`, by determining the length of the given `cstring` and passing it to the other function.
!*/
TOY_API Toy_RefString* Toy_createRefString(const char* cstring);
/*!
### Toy_RefString* Toy_createRefStringLength(const char* cstring, size_t length)
This function returns a new `Toy_RefString`, containing a copy of `cstring`, or `NULL` on error.
This function also sets the returned refstring's reference counter to 1.
!*/
TOY_API Toy_RefString* Toy_createRefStringLength(const char* cstring, size_t length);
/*!
### void Toy_deleteRefString(Toy_RefString* refString)
This function reduces the `refString`'s reference counter by 1 and, if it reaches 0, frees the memory.
!*/
TOY_API void Toy_deleteRefString(Toy_RefString* refString);
/*!
### int Toy_countRefString(Toy_RefString* refString)
This function returns the total number of references to `refString`, for debugging.
!*/
TOY_API int Toy_countRefString(Toy_RefString* refString);
/*!
### size_t Toy_lengthRefString(Toy_RefString* refString)
This function returns the length of the underlying cstring of `refString`.
!*/
TOY_API size_t Toy_lengthRefString(Toy_RefString* refString);
/*!
### Toy_RefString* Toy_copyRefString(Toy_RefString* refString)
This function increases the reference counter of `refString` by 1, before returning the given pointer.
This function reserves the right to create a deep copy where needed.
!*/
TOY_API Toy_RefString* Toy_copyRefString(Toy_RefString* refString);
/*!
### Toy_RefString* Toy_deepCopyRefString(Toy_RefString* refString)
This function behaves identically to `Toy_copyRefString`, except that it explicitly forces a deep copy of the internal memory. Using this function should be done carefully, as it incurs a performance penalty that negates the benefit of this module.
!*/
TOY_API Toy_RefString* Toy_deepCopyRefString(Toy_RefString* refString);
/*!
### const char* Toy_toCString(Toy_RefString* refString)
This function exposes the interal cstring of `refString`. Only use this function when dealing with external APIs.
!*/
TOY_API const char* Toy_toCString(Toy_RefString* refString);
/*!
### bool Toy_equalsRefString(Toy_RefString* lhs, Toy_RefString* rhs)
This function returns true when the two refstrings are either the same refstring, or contain the same value. Otherwise it returns false.
!*/
TOY_API bool Toy_equalsRefString(Toy_RefString* lhs, Toy_RefString* rhs);
/*!
### bool Toy_equalsRefStringCString(Toy_RefString* lhs, char* cstring)
This function returns true when the `refString` contains the same value as the `cstring`. Otherwise it returns false.
!*/
TOY_API bool Toy_equalsRefStringCString(Toy_RefString* lhs, char* cstring);
//TODO: merge refstring memory
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#include "toy_scope.h"
#include "toy_memory.h"
//run up the ancestor chain, freeing anything with 0 references left
static void freeAncestorChain(Toy_Scope* scope) {
while (scope != NULL) {
Toy_Scope* next = scope->ancestor;
scope->references--;
if (scope->references <= 0) {
Toy_freeLiteralDictionary(&scope->variables);
Toy_freeLiteralDictionary(&scope->types);
TOY_FREE(Toy_Scope, scope);
}
scope = next;
}
}
//return false if invalid type
static bool checkType(Toy_Literal typeLiteral, Toy_Literal original, Toy_Literal value, bool constCheck) {
//for constants, fail if original != value
if (constCheck && TOY_AS_TYPE(typeLiteral).constant && !Toy_literalsAreEqual(original, value)) {
return false;
}
//for any types
if (TOY_AS_TYPE(typeLiteral).typeOf == TOY_LITERAL_ANY) {
return true;
}
//don't allow null types
if (TOY_AS_TYPE(typeLiteral).typeOf == TOY_LITERAL_NULL) {
return false;
}
//always allow null values
if (TOY_IS_NULL(value)) {
return true;
}
//for each type, if a mismatch is found, return false
if (TOY_AS_TYPE(typeLiteral).typeOf == TOY_LITERAL_BOOLEAN && !TOY_IS_BOOLEAN(value)) {
return false;
}
if (TOY_AS_TYPE(typeLiteral).typeOf == TOY_LITERAL_INTEGER && !TOY_IS_INTEGER(value)) {
return false;
}
if (TOY_AS_TYPE(typeLiteral).typeOf == TOY_LITERAL_FLOAT && !TOY_IS_FLOAT(value)) {
return false;
}
if (TOY_AS_TYPE(typeLiteral).typeOf == TOY_LITERAL_STRING && !TOY_IS_STRING(value)) {
return false;
}
if (TOY_AS_TYPE(typeLiteral).typeOf == TOY_LITERAL_ARRAY && !TOY_IS_ARRAY(value)) {
return false;
}
if (TOY_IS_ARRAY(value)) {
//check value's type
if (TOY_AS_TYPE(typeLiteral).typeOf != TOY_LITERAL_ARRAY) {
return false;
}
//if null, assume it's a new array variable that needs checking
if (TOY_IS_NULL(original)) {
for (int i = 0; i < TOY_AS_ARRAY(value)->count; i++) {
if (!checkType( ((Toy_Literal*)(TOY_AS_TYPE(typeLiteral).subtypes))[0], TOY_TO_NULL_LITERAL, TOY_AS_ARRAY(value)->literals[i], constCheck)) {
return false;
}
}
return true;
}
//check children
for (int i = 0; i < TOY_AS_ARRAY(value)->count; i++) {
if (TOY_AS_ARRAY(original)->count <= i) {
return true; //assume new entry pushed
}
if (!checkType(((Toy_Literal*)(TOY_AS_TYPE(typeLiteral).subtypes))[0], TOY_AS_ARRAY(original)->literals[i], TOY_AS_ARRAY(value)->literals[i], constCheck)) {
return false;
}
}
}
if (TOY_AS_TYPE(typeLiteral).typeOf == TOY_LITERAL_DICTIONARY && !TOY_IS_DICTIONARY(value)) {
return false;
}
if (TOY_IS_DICTIONARY(value)) {
//check value's type
if (TOY_AS_TYPE(typeLiteral).typeOf != TOY_LITERAL_DICTIONARY) {
return false;
}
//if null, assume it's a new dictionary variable that needs checking
if (TOY_IS_NULL(original)) {
for (int i = 0; i < TOY_AS_DICTIONARY(value)->capacity; i++) {
//check the type of key and value
if (!checkType(((Toy_Literal*)(TOY_AS_TYPE(typeLiteral).subtypes))[0], TOY_TO_NULL_LITERAL, TOY_AS_DICTIONARY(value)->entries[i].key, constCheck)) {
return false;
}
if (!checkType(((Toy_Literal*)(TOY_AS_TYPE(typeLiteral).subtypes))[1], TOY_TO_NULL_LITERAL, TOY_AS_DICTIONARY(value)->entries[i].value, constCheck)) {
return false;
}
}
return true;
}
//check each child of value against the child of original
for (int i = 0; i < TOY_AS_DICTIONARY(value)->capacity; i++) {
if (TOY_IS_NULL(TOY_AS_DICTIONARY(value)->entries[i].key)) { //only non-tombstones
continue;
}
//find the internal child of original that matches this child of value
Toy_private_dictionary_entry* ptr = NULL;
for (int j = 0; j < TOY_AS_DICTIONARY(original)->capacity; j++) {
if (Toy_literalsAreEqual(TOY_AS_DICTIONARY(original)->entries[j].key, TOY_AS_DICTIONARY(value)->entries[i].key)) {
ptr = &TOY_AS_DICTIONARY(original)->entries[j];
break;
}
}
//if not found, assume it's a new entry
if (!ptr) {
continue;
}
//check the type of key and value
if (!checkType(((Toy_Literal*)(TOY_AS_TYPE(typeLiteral).subtypes))[0], ptr->key, TOY_AS_DICTIONARY(value)->entries[i].key, constCheck)) {
return false;
}
if (!checkType(((Toy_Literal*)(TOY_AS_TYPE(typeLiteral).subtypes))[1], ptr->value, TOY_AS_DICTIONARY(value)->entries[i].value, constCheck)) {
return false;
}
}
}
if (TOY_AS_TYPE(typeLiteral).typeOf == TOY_LITERAL_FUNCTION && !TOY_IS_FUNCTION(value)) {
return false;
}
if (TOY_AS_TYPE(typeLiteral).typeOf == TOY_LITERAL_TYPE && !TOY_IS_TYPE(value)) {
return false;
}
if (TOY_AS_TYPE(typeLiteral).typeOf == TOY_LITERAL_OPAQUE && !TOY_IS_OPAQUE(value)) {
return false;
}
return true;
}
//exposed functions
Toy_Scope* Toy_pushScope(Toy_Scope* ancestor) {
Toy_Scope* scope = TOY_ALLOCATE(Toy_Scope, 1);
scope->ancestor = ancestor;
Toy_initLiteralDictionary(&scope->variables);
Toy_initLiteralDictionary(&scope->types);
//tick up all scope reference counts
scope->references = 0;
for (Toy_Scope* ptr = scope; ptr != NULL; ptr = ptr->ancestor) {
ptr->references++;
}
return scope;
}
Toy_Scope* Toy_popScope(Toy_Scope* scope) {
if (scope == NULL) { //CAN pop a null
return NULL;
}
Toy_Scope* ret = scope->ancestor;
//BUGFIX: when freeing a scope, free the functions' scopes manually - I *think* this is related to the closure hack-in
for (int i = 0; i < scope->variables.capacity; i++) {
//handle keys, just in case
if (TOY_IS_FUNCTION(scope->variables.entries[i].key)) {
Toy_popScope(TOY_AS_FUNCTION(scope->variables.entries[i].key).scope);
TOY_AS_FUNCTION(scope->variables.entries[i].key).scope = NULL;
}
if (TOY_IS_FUNCTION(scope->variables.entries[i].value)) {
Toy_popScope(TOY_AS_FUNCTION(scope->variables.entries[i].value).scope);
TOY_AS_FUNCTION(scope->variables.entries[i].value).scope = NULL;
}
}
freeAncestorChain(scope);
return ret;
}
Toy_Scope* Toy_copyScope(Toy_Scope* original) {
if (original == NULL) {
return NULL;
}
Toy_Scope* scope = TOY_ALLOCATE(Toy_Scope, 1);
scope->ancestor = original->ancestor;
Toy_initLiteralDictionary(&scope->variables);
Toy_initLiteralDictionary(&scope->types);
//tick up all scope reference counts
scope->references = 0;
for (Toy_Scope* ptr = scope; ptr != NULL; ptr = ptr->ancestor) {
ptr->references++;
}
//copy the contents of the dictionaries
for (int i = 0; i < original->variables.capacity; i++) {
if (!TOY_IS_NULL(original->variables.entries[i].key)) {
Toy_setLiteralDictionary(&scope->variables, original->variables.entries[i].key, original->variables.entries[i].value);
}
}
for (int i = 0; i < original->types.capacity; i++) {
if (!TOY_IS_NULL(original->types.entries[i].key)) {
Toy_setLiteralDictionary(&scope->types, original->types.entries[i].key, original->types.entries[i].value);
}
}
return scope;
}
//returns false if error
bool Toy_declareScopeVariable(Toy_Scope* scope, Toy_Literal key, Toy_Literal type) {
//don't redefine a variable within this scope
if (Toy_existsLiteralDictionary(&scope->variables, key)) {
return false;
}
if (!TOY_IS_TYPE(type)) {
return false;
}
//store the type, for later checking on assignment
Toy_setLiteralDictionary(&scope->types, key, type);
Toy_setLiteralDictionary(&scope->variables, key, TOY_TO_NULL_LITERAL);
return true;
}
bool Toy_isDeclaredScopeVariable(Toy_Scope* scope, Toy_Literal key) {
while (scope != NULL) {
if (Toy_existsLiteralDictionary(&scope->variables, key)) {
return true;
}
scope = scope->ancestor;
}
return false;
}
//return false if undefined, or can't be assigned
bool Toy_setScopeVariable(Toy_Scope* scope, Toy_Literal key, Toy_Literal value, bool constCheck) {
while (scope != NULL) {
//if it's not in this scope, keep searching up the chain
if (!Toy_existsLiteralDictionary(&scope->variables, key)) {
scope = scope->ancestor;
continue;
}
//type checking
Toy_Literal typeLiteral = Toy_getLiteralDictionary(&scope->types, key);
Toy_Literal original = Toy_getLiteralDictionary(&scope->variables, key);
if (!checkType(typeLiteral, original, value, constCheck)) {
Toy_freeLiteral(typeLiteral);
Toy_freeLiteral(original);
return false;
}
//actually assign
Toy_setLiteralDictionary(&scope->variables, key, value); //key & value are copied here
Toy_freeLiteral(typeLiteral);
Toy_freeLiteral(original);
return true;
}
return false;
}
bool Toy_getScopeVariable(Toy_Scope* scope, Toy_Literal key, Toy_Literal* valueHandle) {
//optimized to reduce call stack
while (scope != NULL) {
if (Toy_existsLiteralDictionary(&scope->variables, key)) {
*valueHandle = Toy_getLiteralDictionary(&scope->variables, key);
return true;
}
scope = scope->ancestor;
}
return false;
}
Toy_Literal Toy_getScopeType(Toy_Scope* scope, Toy_Literal key) {
while (scope != NULL) {
if (Toy_existsLiteralDictionary(&scope->types, key)) {
return Toy_getLiteralDictionary(&scope->types, key);
}
scope = scope->ancestor;
}
return TOY_TO_NULL_LITERAL;
}
-90
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@@ -1,90 +0,0 @@
#pragma once
/*!
# toy_scope.h
This header defines the scope structure, which stores all of the variables used within a given block of code.
Scopes are arranged into a linked list of ancestors, each of which is reference counted. When a scope is popped off the end of the chain, every ancestor scope has it's reference counter reduced by 1 and, if any reach 0, they are freed.
This is also where Toy's type system lives.
!*/
#include "toy_literal.h"
#include "toy_literal_array.h"
#include "toy_literal_dictionary.h"
typedef struct Toy_Scope {
Toy_LiteralDictionary variables; //only allow identifiers as the keys
Toy_LiteralDictionary types; //the types, indexed by identifiers
struct Toy_Scope* ancestor;
int references; //how many scopes point here
} Toy_Scope;
/*!
## Defined Functions
!*/
/*!
### Toy_Scope* Toy_pushScope(Toy_Scope* scope)
This function creates a new `Toy_scope` with `scope` as it's ancestor, and returns it.
!*/
TOY_API Toy_Scope* Toy_pushScope(Toy_Scope* scope);
/*!
### Toy_Scope* Toy_popScope(Toy_Scope* scope)
This function frees the given `scope`, and returns it's ancestor.
!*/
TOY_API Toy_Scope* Toy_popScope(Toy_Scope* scope);
/*!
### Toy_Scope* Toy_copyScope(Toy_Scope* original)
This function copies an existing scope, and returns the copy.
This copies the internal dictionaries, so it can be memory intensive.
!*/
TOY_API Toy_Scope* Toy_copyScope(Toy_Scope* original);
/*!
### bool Toy_declareScopeVariable(Toy_Scope* scope, Toy_Literal key, Toy_Literal type)
This function declares a new variable `key` within `scope`, giving it the type of `type`.
This function returns true on success, otherwise it returns failure (such as if the given key already exists).
!*/
TOY_API bool Toy_declareScopeVariable(Toy_Scope* scope, Toy_Literal key, Toy_Literal type);
/*!
### bool Toy_isDeclaredScopeVariable(Toy_Scope* scope, Toy_Literal key)
This function checks to see if a given variable with the name `key` has been previously declared.
!*/
TOY_API bool Toy_isDeclaredScopeVariable(Toy_Scope* scope, Toy_Literal key);
/*!
### bool Toy_setScopeVariable(Toy_Scope* scope, Toy_Literal key, Toy_Literal value, bool constCheck)
This function sets an existing variable named `key` to the value of `value`. This function fails if `constCheck` is true and the given key's type has the constaant flag set. It also fails if the given key doesn't exist.
This function returns true on success, otherwise it returns false.
!*/
TOY_API bool Toy_setScopeVariable(Toy_Scope* scope, Toy_Literal key, Toy_Literal value, bool constCheck);
/*!
### bool Toy_getScopeVariable(Toy_Scope* scope, Toy_Literal key, Toy_Literal* value)
This function sets the literal pointed to by `value` to equal the variable named `key`.
This function returns true on success, otherwise it returns false.
!*/
TOY_API bool Toy_getScopeVariable(Toy_Scope* scope, Toy_Literal key, Toy_Literal* value);
/*!
### Toy_Literal Toy_getScopeType(Toy_Scope* scope, Toy_Literal key)
This function returns a new `Toy_Literal` representing the type of the variable named `key`.
!*/
TOY_API Toy_Literal Toy_getScopeType(Toy_Scope* scope, Toy_Literal key);
-93
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@@ -1,93 +0,0 @@
#pragma once
typedef enum Toy_TokenType {
//types
TOY_TOKEN_NULL,
TOY_TOKEN_BOOLEAN,
TOY_TOKEN_INTEGER,
TOY_TOKEN_FLOAT,
TOY_TOKEN_STRING,
TOY_TOKEN_ARRAY,
TOY_TOKEN_DICTIONARY,
TOY_TOKEN_FUNCTION,
TOY_TOKEN_OPAQUE,
TOY_TOKEN_ANY,
//keywords and reserved words
TOY_TOKEN_AS,
TOY_TOKEN_ASSERT,
TOY_TOKEN_BREAK,
TOY_TOKEN_CLASS,
TOY_TOKEN_CONST,
TOY_TOKEN_CONTINUE,
TOY_TOKEN_DO,
TOY_TOKEN_ELSE,
TOY_TOKEN_EXPORT,
TOY_TOKEN_FOR,
TOY_TOKEN_FOREACH,
TOY_TOKEN_IF,
TOY_TOKEN_IMPORT,
TOY_TOKEN_IN,
TOY_TOKEN_OF,
TOY_TOKEN_PRINT,
TOY_TOKEN_RETURN,
TOY_TOKEN_TYPE,
TOY_TOKEN_ASTYPE,
TOY_TOKEN_TYPEOF,
TOY_TOKEN_VAR,
TOY_TOKEN_WHILE,
//literal values
TOY_TOKEN_IDENTIFIER,
TOY_TOKEN_LITERAL_TRUE,
TOY_TOKEN_LITERAL_FALSE,
TOY_TOKEN_LITERAL_INTEGER,
TOY_TOKEN_LITERAL_FLOAT,
TOY_TOKEN_LITERAL_STRING,
//math operators
TOY_TOKEN_PLUS,
TOY_TOKEN_MINUS,
TOY_TOKEN_MULTIPLY,
TOY_TOKEN_DIVIDE,
TOY_TOKEN_MODULO,
TOY_TOKEN_PLUS_ASSIGN,
TOY_TOKEN_MINUS_ASSIGN,
TOY_TOKEN_MULTIPLY_ASSIGN,
TOY_TOKEN_DIVIDE_ASSIGN,
TOY_TOKEN_MODULO_ASSIGN,
TOY_TOKEN_PLUS_PLUS,
TOY_TOKEN_MINUS_MINUS,
TOY_TOKEN_ASSIGN,
//logical operators
TOY_TOKEN_PAREN_LEFT,
TOY_TOKEN_PAREN_RIGHT,
TOY_TOKEN_BRACKET_LEFT,
TOY_TOKEN_BRACKET_RIGHT,
TOY_TOKEN_BRACE_LEFT,
TOY_TOKEN_BRACE_RIGHT,
TOY_TOKEN_NOT,
TOY_TOKEN_NOT_EQUAL,
TOY_TOKEN_EQUAL,
TOY_TOKEN_LESS,
TOY_TOKEN_GREATER,
TOY_TOKEN_LESS_EQUAL,
TOY_TOKEN_GREATER_EQUAL,
TOY_TOKEN_AND_AND,
TOY_TOKEN_OR_OR,
//other operators
TOY_TOKEN_QUESTION,
TOY_TOKEN_COLON,
TOY_TOKEN_SEMICOLON,
TOY_TOKEN_COMMA,
TOY_TOKEN_DOT,
TOY_TOKEN_PIPE,
TOY_TOKEN_REST,
//meta tokens
TOY_TOKEN_PASS,
TOY_TOKEN_ERROR,
TOY_TOKEN_EOF,
} Toy_TokenType;
-37
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@@ -1,37 +0,0 @@
CC=gcc
IDIR +=. ../source ../repl
CFLAGS +=$(addprefix -I,$(IDIR)) -g -Wall -W -Wno-unused-parameter -Wno-unused-function -Wno-unused-variable
LIBS +=-lm
ODIR = obj
TARGETS = $(wildcard ../source/*.c) $(wildcard ../repl/lib_*.c) ../repl/repl_tools.c ../repl/drive_system.c
TESTS = $(wildcard test_*.c)
OBJ = $(addprefix $(ODIR)/,$(TARGETS:../source/%.c=%.o)) $(addprefix $(ODIR)/,$(TESTS:.c=.o))
.PRECIOUS: $(TESTS:%.c=../$(TOY_OUTDIR)/%.exe)
all: $(OBJ) $(TESTS:%.c=../$(TOY_OUTDIR)/%.exe)
../$(TOY_OUTDIR)/%.exe: $(ODIR)/%.o
@$(CC) -o $@ $< $(TARGETS:../source/%.c=$(ODIR)/%.o) $(CFLAGS) $(LIBS)
ifeq ($(shell uname)$(DISABLE_VALGRIND),Linux)
valgrind --leak-check=full --track-origins=yes --show-leak-kinds=all $@
else
$@
endif
$(OBJ): | $(ODIR)
$(ODIR):
mkdir $(ODIR)
$(ODIR)/%.o: %.c
@$(CC) -c -o $@ $< $(CFLAGS)
$(ODIR)/%.o: ../source/%.c
@$(CC) -c -o $@ $< $(CFLAGS)
.PHONY: clean
clean:
$(RM) $(ODIR)
-49
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@@ -1,49 +0,0 @@
//test operators (integers)
assert 1 + 1 == 2, "1 + 1 == 2";
assert 1 - 1 == 0, "1 - 1 == 0";
assert 2 * 2 == 4, "2 * 2 == 4";
assert 1 / 2 == 0, "1 / 2 == 0"; //integer division
assert 5 % 2 == 1, "5 % 2 == 1";
//test operators (floats)
assert 1.0 + 1.0 == 2.0, "1.0 + 1.0 == 2.0";
assert 1.0 - 1.0 == 0.0, "1.0 - 1.0 == 0.0";
assert 2.0 * 2.0 == 4.0, "2.0 * 2.0 == 4.0";
assert 1.0 / 2.0 == 0.5, "1.0 / 2.0 == 0.5";
var a = 10;
a += 20;
a -= 25;
assert a == 5, "+= or -= failed";
a *= 5;
a /= 2;
assert a == 12, "*= or /= failed";
a %= 8;
assert a == 4, "%= failed";
//strings as special cases
var s = "foo";
assert s + "bar" == "foobar", "string addition failed";
assert s == "foo", "string addition failed (was too sticky)";
s += "bar";
assert s == "foobar", "string addition failed (wasn't sticky enough)";
//check order of operations
assert 30 / 3 * 2 == 20, "Order of operations failed (raw numbers)";
var x = 30;
var y = 3;
var z = 2;
assert x / y * z == 20, "Order of operations failed (variables)";
print "All good";
-23
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@@ -1,23 +0,0 @@
//create a bunch of toy functions as literals to be called from C
fn answer() {
return 42;
}
fn identity(x) {
return x;
}
fn makeCounter() {
var total = 0;
fn counter() {
return ++total;
}
return counter;
}
fn fail() {
assert false, "Failed correctly";
}
@@ -1,7 +0,0 @@
var s = "42";
var t = "69";
assert int (s + t) - 1 == 4268, "casting parentheses failed";
print "All good";
-37
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@@ -1,37 +0,0 @@
//boolean origin
var b: bool = true;
assert bool b == true, "bool -> bool";
assert int b == 1, "bool -> int";
assert float b == 1, "bool -> float";
assert string b == "true", "bool -> string";
//integer origin
var i: int = 42;
assert bool i == true, "int -> bool";
assert int i == 42, "int -> int";
assert float i == 42, "int -> float";
assert string i == "42", "int -> string";
//float origin
var f: float = 3.14;
assert bool f == true, "float -> bool";
assert int f == 3, "float -> int";
assert float f == 3.14, "float -> float";
assert string f == "3.14", "float -> string";
//string origin
var s: string = "78.9";
assert bool s == true, "string -> bool";
assert int s == 78, "string -> int";
assert float s == 78.9, "string -> float";
assert string s == "78.9", "string -> string";
print "All good";
-29
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@@ -1,29 +0,0 @@
//test int -> float coercion
{
var f: float = 0;
assert typeof f == float, "coercion on decl failed";
f = 42;
assert typeof f == float, "coercion on assign failed";
}
//test function coercion
{
fn f(arg: float) {
assert typeof arg == float, "argument coercion failed";
}
f(42);
fn g(): float {
return 42;
}
assert typeof g() == float, "return coercion failed";
}
print "All good";
-30
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@@ -1,30 +0,0 @@
//test numbers
assert 1 < 2, "1 < 2";
assert 1 == 1, "1 == 1";
assert 2 > 1, "2 > 1";
assert 1 <= 2, "1 <= 2";
assert 2 >= 1, "2 >= 1";
//test variables
var a = 1;
var b = 2;
assert a < b, "a < b";
assert a == a, "a == a";
assert b > a, "b > a";
assert a <= b, "a <= b";
assert b >= a, "b >= a";
//test negation
assert !false, "!false";
var c = false;
assert !c, "!c";
//test multiple comparisons
assert 1 == 2 == false, "Left-accociative equality failed";
print "All good";
-12
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@@ -1,12 +0,0 @@
fn fib(n : int) {
if (n < 2) {
return n;
}
return fib(n-1) + fib(n-2);
}
for (var i = 0; i < 20; i++) {
var res = fib(i);
print string i + ": " + string res;
}
-68
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@@ -1,68 +0,0 @@
//dot product
var a = [1, 2, 3];
var b = [4, 5, 6];
assert length(a) == length(b), "a and b lengths are wrong";
var acc = 0;
for (var i = 0; i < length(a); i++) {
acc += get(a, i) * get(b, i);
}
assert acc == 32, "dot product failed";
//assume the args are matrices
fn matrix(first, second) {
//get the matrix size
var l1 = length(first); //rows
var l2 = length(get(first, 0)); //cols
var l3 = length(second); //rows
var l4 = length(get(second, 0)); //cols
//pre-allocate the matrix
var row = [];
for (var j = 0; j < l4; j++) {
push(row, 0);
}
var result = [];
for (var i = 0; i < l1; i++) {
push(result, row);
}
//assign the values
for (var i = 0; i < length(first); i++) {
//select each element of "first"
var firstElement = get(first, i);
//for each element of second
for (var i2 = 0; i2 < length(second); i2++) {
for (var j2 = 0; j2 < length(get(second, 0)); j2++) {
var val = get(get(first, i), i2) * get(get(second, i2), j2);
//TODO: needs better notation than this tmpRow variable
var tmpRow = get(result, i);
set(tmpRow, j2, val);
set(result, i, tmpRow);
//result[ i ][ j2 ] += first[i][i2] * second[i2][j2]
}
}
}
return result;
}
//matrix multiply
var c = [[4], [5], [6]]; //this is a 3x1
var d = [[1, 2, 3]]; //this is a 1x3
// c x d = 3x3
// d x c = 1x1
assert matrix(c, d) == [[4,8,12],[5,10,15],[6,12,18]], "Matrix multiplication failed";
print "All good";
-20
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@@ -1,20 +0,0 @@
/*
NOTES: For some reason, this code results in the error:
Undeclared variable "inner"
It only occurs under these very specific conditions.
It appears to be a compiler issue, see issue #38 for more info.
*/
fn getValue(self) {
return self;
}
var cache;
cache = 42.getValue(); //assignment, rather than declaration, allows the bug
print "All good";
-30
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@@ -1,30 +0,0 @@
//test function chaining with the dot operator
fn identity(self) {
return self;
}
fn check(self) {
assert self == 42, "dot chaining failed";
return self;
}
var val = 42;
val
.identity()
.check()
.identity()
.check()
;
//test the value is actually altered
fn increment(self) {
return self + 1;
}
assert 3.increment().increment() == 5, "dot chaining increment failed";
print "All good";
-23
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@@ -1,23 +0,0 @@
var days = [
"sunday",
"monday",
"tuesday",
"wednesday",
"thursday",
"friday",
"saturday"
];
var rng = 10; //for chosen at random
var index = rng % days.length();
assert index == 3, "dot modulo bugfix failed";
rng %= days.length();
assert rng == 3, "dot modulo assign bugfix failed";
print "All good";

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