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Added indexing to strings, tests still needed

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This commit is contained in:
Kayne Ruse
2024-11-09 13:06:48 +11:00
parent 5588986042
commit 1925d41940
8 changed files with 229 additions and 42 deletions
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29
source/toy_parser.c
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@@ -116,6 +116,7 @@ static Toy_AstFlag literal(Toy_Bucket** bucketHandle, Toy_Parser* parser, Toy_As
static Toy_AstFlag unary(Toy_Bucket** bucketHandle, Toy_Parser* parser, Toy_Ast** rootHandle);
static Toy_AstFlag binary(Toy_Bucket** bucketHandle, Toy_Parser* parser, Toy_Ast** rootHandle);
static Toy_AstFlag group(Toy_Bucket** bucketHandle, Toy_Parser* parser, Toy_Ast** rootHandle);
static Toy_AstFlag compound(Toy_Bucket** bucketHandle, Toy_Parser* parser, Toy_Ast** rootHandle);
//precedence definitions
static ParsingTuple parsingRulesetTable[] = {
@@ -194,7 +195,7 @@ static ParsingTuple parsingRulesetTable[] = {
//structural operators
{PREC_NONE,group,NULL},// TOY_TOKEN_OPERATOR_PAREN_LEFT,
{PREC_NONE,NULL,NULL},// TOY_TOKEN_OPERATOR_PAREN_RIGHT,
{PREC_NONE,NULL,NULL},// TOY_TOKEN_OPERATOR_BRACKET_LEFT,
{PREC_CALL,NULL,compound},// TOY_TOKEN_OPERATOR_BRACKET_LEFT,
{PREC_NONE,NULL,NULL},// TOY_TOKEN_OPERATOR_BRACKET_RIGHT,
{PREC_NONE,NULL,NULL},// TOY_TOKEN_OPERATOR_BRACE_LEFT,
{PREC_NONE,NULL,NULL},// TOY_TOKEN_OPERATOR_BRACE_RIGHT,
@@ -207,7 +208,7 @@ static ParsingTuple parsingRulesetTable[] = {
{PREC_NONE,NULL,NULL},// TOY_TOKEN_OPERATOR_COLON,
{PREC_NONE,NULL,NULL},// TOY_TOKEN_OPERATOR_SEMICOLON, // ;
{PREC_NONE,NULL,NULL},// TOY_TOKEN_OPERATOR_COMMA, // ,
{PREC_CALL,NULL,compound},// TOY_TOKEN_OPERATOR_COMMA, // ,
{PREC_NONE,NULL,NULL},// TOY_TOKEN_OPERATOR_DOT, // .
{PREC_CALL,NULL,binary},// TOY_TOKEN_OPERATOR_CONCAT, // ..
@@ -557,6 +558,26 @@ static Toy_AstFlag group(Toy_Bucket** bucketHandle, Toy_Parser* parser, Toy_Ast*
return TOY_AST_FLAG_NONE;
}
static Toy_AstFlag compound(Toy_Bucket** bucketHandle, Toy_Parser* parser, Toy_Ast** rootHandle) {
//infix must advance
advance(parser);
if (parser->previous.type == TOY_TOKEN_OPERATOR_COMMA) {
parsePrecedence(bucketHandle, parser, rootHandle, PREC_ASSIGNMENT + 1);
return TOY_AST_FLAG_COMPOUND_COLLECTION;
}
else if (parser->previous.type == TOY_TOKEN_OPERATOR_BRACKET_LEFT) {
parsePrecedence(bucketHandle, parser, rootHandle, PREC_ASSIGNMENT + 1);
consume(parser, TOY_TOKEN_OPERATOR_BRACKET_RIGHT, "Expected ']' at the end of index expression");
return TOY_AST_FLAG_COMPOUND_INDEX;
}
else {
printError(parser, parser->previous, "Unexpected token passed to compound precedence rule");
Toy_private_emitAstError(bucketHandle, rootHandle);
return TOY_AST_FLAG_NONE;
}
}
static ParsingTuple* getParsingRule(Toy_TokenType type) {
return &parsingRulesetTable[type];
}
@@ -605,6 +626,7 @@ static void parsePrecedence(Toy_Bucket** bucketHandle, Toy_Parser* parser, Toy_A
(*rootHandle) = ptr;
return;
}
//eww, gross
else if (flag >= 10 && flag <= 19) {
Toy_String* name = Toy_createNameStringLength(bucketHandle, prevToken.lexeme, prevToken.length, TOY_VALUE_UNKNOWN, false);
Toy_private_emitAstVariableAssignment(bucketHandle, rootHandle, name, flag, ptr);
@@ -612,6 +634,9 @@ static void parsePrecedence(Toy_Bucket** bucketHandle, Toy_Parser* parser, Toy_A
else if (flag >= 20 && flag <= 29) {
Toy_private_emitAstCompare(bucketHandle, rootHandle, flag, ptr);
}
else if (flag >= 30 && flag <= 39) {
Toy_private_emitAstCompound(bucketHandle, rootHandle, flag, ptr);
}
else {
Toy_private_emitAstBinary(bucketHandle, rootHandle, flag, ptr);
}