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Assignment target is now an AST node

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This will make assigning to arbitrary targets easier.
This commit is contained in:
Kayne Ruse
2024-12-04 19:24:58 +11:00
parent 62ca7a1fb7
commit 03dce296cb
7 changed files with 93 additions and 82 deletions
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18
source/toy_parser.c
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@@ -266,8 +266,12 @@ static Toy_ValueType readType(Toy_Parser* parser) {
}
static Toy_AstFlag nameString(Toy_Bucket** bucketHandle, Toy_Parser* parser, Toy_Ast** rootHandle) {
//emit the name string
Toy_String* name = Toy_createNameStringLength(bucketHandle, parser->previous.lexeme, parser->previous.length, TOY_VALUE_UNKNOWN, false);
Toy_Value value = TOY_VALUE_FROM_STRING(name);
Toy_private_emitAstValue(bucketHandle, rootHandle, value);
//check for an assignment
Toy_AstFlag flag = TOY_AST_FLAG_NONE;
if (match(parser, TOY_TOKEN_OPERATOR_ASSIGN)) {
@@ -289,16 +293,16 @@ static Toy_AstFlag nameString(Toy_Bucket** bucketHandle, Toy_Parser* parser, Toy
flag = TOY_AST_FLAG_MODULO_ASSIGN;
}
//assignment
//emit the assignment if found
if (flag != TOY_AST_FLAG_NONE) {
Toy_Ast* expr = NULL;
parsePrecedence(bucketHandle, parser, &expr, PREC_ASSIGNMENT); //this makes chained assignment possible, I think
Toy_private_emitAstVariableAssignment(bucketHandle, rootHandle, name, flag, expr);
Toy_private_emitAstVariableAssignment(bucketHandle, rootHandle, flag, expr);
return TOY_AST_FLAG_NONE;
}
//assume it's an access
Toy_private_emitAstVariableAccess(bucketHandle, rootHandle, name);
//assume it's an access instead
Toy_private_emitAstVariableAccess(bucketHandle, rootHandle);
return TOY_AST_FLAG_NONE;
}
@@ -643,9 +647,6 @@ static void parsePrecedence(Toy_Bucket** bucketHandle, Toy_Parser* parser, Toy_A
return;
}
//grab this for name storage
Toy_Token prevToken = parser->previous;
Toy_Ast* ptr = NULL;
Toy_AstFlag flag = infix(bucketHandle, parser, &ptr);
@@ -656,8 +657,7 @@ static void parsePrecedence(Toy_Bucket** bucketHandle, Toy_Parser* parser, Toy_A
}
//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);
Toy_private_emitAstVariableAssignment(bucketHandle, rootHandle, flag, ptr);
}
else if (flag >= 20 && flag <= 29) {
Toy_private_emitAstCompare(bucketHandle, rootHandle, flag, ptr);