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[qfcc] Add a comment about why obj_type_assignable

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It's not exactly intuitive.
This commit is contained in:
Bill Currie 2025-02-16 17:20:36 +09:00
parent f8099c9977
commit de0b8bf476
1 changed files with 3 additions and 1 deletions
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4
tools/qfcc/source/function.c
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@ -659,7 +659,7 @@ check_type (const type_t *type, callparm_t param, unsigned *cost, bool promote)
if (is_reference (param.type)) {
return type_same (type, dereference_type (param.type));
} else {
// pass by references is a free conversion, but no promotion
// pass by reference is a free conversion, but no promotion
return type_same (type, param.type);
}
}
@ -671,6 +671,8 @@ check_type (const type_t *type, callparm_t param, unsigned *cost, bool promote)
if (type_same (type, param.type)) {
return true;
}
// the class system flags any promotions it can do, but type_assignable
// returns true even when promotions happen
int ret = obj_type_assignable (type, param.type);
if (ret >= 0) {
return ret;