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Add union #maybe

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This commit is contained in:
gingerBill
2020-02-01 11:10:28 +00:00
parent 4bcb667e97
commit 0f399a7294
10 changed files with 244 additions and 66 deletions
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core/fmt/fmt.odin
+12 -1
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@@ -1525,10 +1525,21 @@ fmt_value :: proc(fi: ^Info, v: any, verb: rune) {
return;
}
if info.maybe && len(info.variants) == 1 && reflect.is_pointer(info.variants[0]) {
if v.data == nil {
strings.write_string(fi.buf, "nil");
} else {
id := info.variants[0].id;
fmt_arg(fi, any{v.data, id}, verb);
}
return;
}
tag: i64 = -1;
tag_ptr := uintptr(v.data) + info.tag_offset;
tag_any := any{rawptr(tag_ptr), info.tag_type.id};
tag: i64 = -1;
switch i in tag_any {
case u8: tag = i64(i);
case i8: tag = i64(i);