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https://github.com/krgamestudios/Toy.git
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54 lines
2.1 KiB
C
54 lines
2.1 KiB
C
#pragma once
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#include "toy_common.h"
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#include "toy_literal.h"
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#include "toy_literal_array.h"
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#include "toy_literal_dictionary.h"
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#include "toy_scope.h"
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typedef void (*Toy_PrintFn)(const char*);
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//the interpreter acts depending on the bytecode instructions
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typedef struct Toy_Interpreter {
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//input
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const unsigned char* bytecode;
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int length;
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int count;
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int codeStart; //BUGFIX: for jumps, must be initialized to -1
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Toy_LiteralArray literalCache; //read-only - built from the bytecode, refreshed each time new bytecode is provided
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//operation
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Toy_Scope* scope;
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Toy_LiteralArray stack;
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//Library APIs
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Toy_LiteralDictionary* hooks;
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//debug outputs
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Toy_PrintFn printOutput;
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Toy_PrintFn assertOutput;
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Toy_PrintFn errorOutput;
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int depth; //don't overflow
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bool panic;
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} Toy_Interpreter;
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//native API
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TOY_API bool Toy_injectNativeFn(Toy_Interpreter* interpreter, const char* name, Toy_NativeFn func);
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TOY_API bool Toy_injectNativeHook(Toy_Interpreter* interpreter, const char* name, Toy_HookFn hook);
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TOY_API bool Toy_callLiteralFn(Toy_Interpreter* interpreter, Toy_Literal func, Toy_LiteralArray* arguments, Toy_LiteralArray* returns);
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TOY_API bool Toy_callFn(Toy_Interpreter* interpreter, const char* name, Toy_LiteralArray* arguments, Toy_LiteralArray* returns);
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//utilities for the host program
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TOY_API bool Toy_parseIdentifierToValue(Toy_Interpreter* interpreter, Toy_Literal* literalPtr);
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TOY_API void Toy_setInterpreterPrint(Toy_Interpreter* interpreter, Toy_PrintFn printOutput);
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TOY_API void Toy_setInterpreterAssert(Toy_Interpreter* interpreter, Toy_PrintFn assertOutput);
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TOY_API void Toy_setInterpreterError(Toy_Interpreter* interpreter, Toy_PrintFn errorOutput);
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//main access
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TOY_API void Toy_initInterpreter(Toy_Interpreter* interpreter); //start of program
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TOY_API void Toy_runInterpreter(Toy_Interpreter* interpreter, const unsigned char* bytecode, int length); //run the code
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TOY_API void Toy_resetInterpreter(Toy_Interpreter* interpreter); //use this to reset the interpreter's environment between runs
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TOY_API void Toy_freeInterpreter(Toy_Interpreter* interpreter); //end of program
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