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Check for main func return values (and error if it has any)

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Bruce Hill 2025-03-09 18:17:57 -04:00
parent 46f9cebad1
commit 7fbba1b790
1 changed files with 4 additions and 0 deletions
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tomo.c
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@ -562,6 +562,10 @@ void transpile_code(env_t *base_env, Text_t filename, bool force_retranspile)
binding_t *main_binding = get_binding(module_env, "main");
if (main_binding && main_binding->type->tag == FunctionType) {
type_t *ret = Match(main_binding->type, FunctionType)->ret;
if (ret->tag != VoidType && ret->tag != AbortType)
compiler_err(ast->file, ast->start, ast->end, "The main() function in this file has a return type of %T, but it should not have any return value!", ret);
CORD_put(CORD_all(
"int ", main_binding->code, "$parse_and_run(int argc, char *argv[]) {\n"
"#line 1\n"