krgamestudios/Toy
1
0
Fork 0
mirror of https://github.com/krgamestudios/Toy.git synced 2026-04-15 23:04:08 +10:00
Code Issues Packages Projects Releases Wiki Activity

Plumbing for index and dot notations is working

Browse Source
This commit is contained in:
Kayne Ruse
2022-09-05 17:43:42 +01:00
parent 82c03ecb33
commit 304e1a5fb0
14 changed files with 708 additions and 29 deletions
Download Patch File Download Diff File Expand all files Collapse all files

58
source/parser.c
View File

@@ -717,6 +717,60 @@ static Opcode fnCall(Parser* parser, Node** nodeHandle) {
return OP_EOF;
}
static Opcode indexAccess(Parser* parser, Node** nodeHandle) {
advance(parser);
//val[first : second : third]
Node* first = NULL;
Node* second = NULL;
Node* third = NULL;
//eat the first
if (!match(parser, TOKEN_COLON)) {
parsePrecedence(parser, &first, PREC_TERNARY);
}
if (match(parser, TOKEN_BRACKET_RIGHT)) {
emitNodeIndex(nodeHandle, first, second, third);
return OP_INDEX;
}
consume(parser, TOKEN_COLON, "Expected ':' in index notation");
//eat the second
if (!match(parser, TOKEN_COLON)) {
parsePrecedence(parser, &second, PREC_TERNARY);
}
if (match(parser, TOKEN_BRACKET_RIGHT)) {
emitNodeIndex(nodeHandle, first, second, third);
return OP_INDEX;
}
consume(parser, TOKEN_COLON, "Expected ':' in index notation");
//eat the third
parsePrecedence(parser, &third, PREC_TERNARY);
emitNodeIndex(nodeHandle, first, second, third);
consume(parser, TOKEN_BRACKET_RIGHT, "Expected ']' in index notation");
return OP_INDEX;
}
static Opcode dot(Parser* parser, Node** nodeHandle) {
advance(parser); //for the dot
advance(parser); //for the identifier
Node* first = NULL;
identifier(parser, &first); //specific case
emitNodeDot(nodeHandle, first);
return OP_DOT;
}
ParseRule parseRules[] = { //must match the token types
//types
{atomic, NULL, PREC_PRIMARY},// TOKEN_NULL,
@@ -779,7 +833,7 @@ ParseRule parseRules[] = { //must match the token types
//logical operators
{grouping, fnCall, PREC_CALL},// TOKEN_PAREN_LEFT,
{NULL, NULL, PREC_NONE},// TOKEN_PAREN_RIGHT,
{compound, NULL, PREC_CALL},// TOKEN_BRACKET_LEFT,
{compound, indexAccess, PREC_CALL},// TOKEN_BRACKET_LEFT,
{NULL, NULL, PREC_NONE},// TOKEN_BRACKET_RIGHT,
{NULL, NULL, PREC_NONE},// TOKEN_BRACE_LEFT,
{NULL, NULL, PREC_NONE},// TOKEN_BRACE_RIGHT,
@@ -797,7 +851,7 @@ ParseRule parseRules[] = { //must match the token types
{NULL, NULL, PREC_NONE},// TOKEN_COLON,
{NULL, NULL, PREC_NONE},// TOKEN_SEMICOLON,
{NULL, NULL, PREC_NONE},// TOKEN_COMMA,
{NULL, NULL, PREC_NONE},// TOKEN_DOT,
{NULL, dot, PREC_CALL},// TOKEN_DOT,
{NULL, NULL, PREC_NONE},// TOKEN_PIPE,
{NULL, NULL, PREC_NONE},// TOKEN_REST,