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Fix #3319

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gingerBill
2024-03-24 13:42:37 +00:00
parent 6da6393735
commit 1ea1229516
1 changed files with 18 additions and 0 deletions
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18
src/parser.cpp
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@@ -3666,6 +3666,7 @@ gb_internal Ast *parse_simple_stmt(AstFile *f, u32 flags) {
expect_token_after(f, Token_Colon, "identifier list");
if ((flags&StmtAllowFlag_Label) && lhs.count == 1) {
bool is_partial = false;
bool is_reverse = false;
Token partial_token = {};
if (f->curr_token.kind == Token_Hash) {
// NOTE(bill): This is purely for error messages
@@ -3675,6 +3676,11 @@ gb_internal Ast *parse_simple_stmt(AstFile *f, u32 flags) {
partial_token = expect_token(f, Token_Hash);
expect_token(f, Token_Ident);
is_partial = true;
} else if (name.kind == Token_Ident && name.string == "reverse" &&
peek_token_n(f, 1).kind == Token_for) {
partial_token = expect_token(f, Token_Hash);
expect_token(f, Token_Ident);
is_reverse = true;
}
}
switch (f->curr_token.kind) {
@@ -3709,6 +3715,18 @@ gb_internal Ast *parse_simple_stmt(AstFile *f, u32 flags) {
break;
}
syntax_error(partial_token, "Incorrect use of directive, use '#partial %.*s: switch'", LIT(ast_token(name).string));
} else if (is_reverse) {
switch (stmt->kind) {
case Ast_RangeStmt:
if (stmt->RangeStmt.reverse) {
syntax_error(token, "#reverse already applied to a 'for in' statement");
}
stmt->RangeStmt.reverse = true;
break;
default:
syntax_error(token, "#reverse can only be applied to a 'for in' statement");
break;
}
}
return stmt;