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[qfcc] Support compound initializers for return

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This commit is contained in:
Bill Currie 2020-03-13 09:58:52 +09:00
parent 047131a737
commit 8d10b0f4aa
2 changed files with 19 additions and 14 deletions
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27
tools/qfcc/source/expr.c
View file

@ -1930,9 +1930,10 @@ expr_t *
return_expr (function_t *f, expr_t *e)
{
type_t *t;
type_t *ret_type = f->sym->type->t.func.type;
if (!e) {
if (f->sym->type->t.func.type != &type_void) {
if (ret_type != &type_void) {
if (options.traditional) {
if (options.warnings.traditional)
warning (e,
@ -1950,25 +1951,31 @@ return_expr (function_t *f, expr_t *e)
}
}
if (e->type == ex_compound) {
e = expr_file_line (initialized_temp_expr (ret_type, e), e);
}
t = get_type (e);
if (e->type == ex_error)
if (e->type == ex_error) {
return e;
if (f->sym->type->t.func.type == &type_void) {
}
if (ret_type == &type_void) {
if (!options.traditional)
return error (e, "returning a value for a void function");
if (options.warnings.traditional)
warning (e, "returning a value for a void function");
}
if (e->type == ex_bool)
e = convert_from_bool (e, f->sym->type->t.func.type);
if (f->sym->type->t.func.type == &type_float && is_integer_val (e)) {
if (e->type == ex_bool) {
e = convert_from_bool (e, ret_type);
}
if (ret_type == &type_float && is_integer_val (e)) {
convert_int (e);
t = &type_float;
}
if (t == &type_void) {
if (e->type == ex_nil) {
t = f->sym->type->t.func.type;
t = ret_type;
convert_nil (e, t);
if (e->type == ex_nil)
return error (e, "invalid return type for NIL");
@ -1980,7 +1987,7 @@ return_expr (function_t *f, expr_t *e)
//FIXME does anything need to be done here?
}
}
if (!type_assignable (f->sym->type->t.func.type, t)) {
if (!type_assignable (ret_type, t)) {
if (!options.traditional)
return error (e, "type mismatch for return value of %s",
f->sym->name);
@ -1988,8 +1995,8 @@ return_expr (function_t *f, expr_t *e)
warning (e, "type mismatch for return value of %s",
f->sym->name);
} else {
if (f->sym->type->t.func.type != t) {
e = cast_expr (f->sym->type->t.func.type, e);
if (ret_type != t) {
e = cast_expr (ret_type, e);
t = f->sym->type->t.func.type;
}
}

6
tools/qfcc/source/qc-parse.y
View file

@ -1267,10 +1267,8 @@ statement
| error ';' { $$ = 0; yyerrok; }
| compound_statement { $$ = $1; }
| local_def { $$ = $1; }
| RETURN opt_expr ';'
{
$$ = return_expr (current_func, $2);
}
| RETURN opt_expr ';' { $$ = return_expr (current_func, $2); }
| RETURN compound_init ';' { $$ = return_expr (current_func, $2); }
| BREAK ';'
{
$$ = 0;