typeid

core/_preload.odin

@@ -49,6 +49,7 @@ Type_Info_Complex  :: struct {};
 Type_Info_String   :: struct {is_cstring: bool};
 Type_Info_Boolean  :: struct {};
 Type_Info_Any      :: struct {};
+Type_Info_Type_Id  :: struct {};
 Type_Info_Pointer  :: struct {
 	elem: ^Type_Info // nil -> rawptr
 };
@@ -114,6 +115,7 @@ Type_Info :: struct {
 		Type_Info_String,
 		Type_Info_Boolean,
 		Type_Info_Any,
+		Type_Info_Type_Id,
 		Type_Info_Pointer,
 		Type_Info_Procedure,
 		Type_Info_Array,
@@ -237,6 +239,11 @@ type_info_base_without_enum :: proc(info: ^Type_Info) -> ^Type_Info {
 	return base;
 }
 
+type_info_from_typeid :: proc(t: typeid) -> ^Type_Info {
+	index := transmute(uintptr)t;
+	return &__type_table[index];
+}
+
 
 
 @(default_calling_convention = "c")

core/fmt.odin

@@ -150,6 +150,10 @@ fprint_type :: proc(fd: os.Handle, info: ^Type_Info) {
 	os.write(fd, buf[..]);
 }
 
+write_typeid :: proc(buf: ^String_Buffer, id: typeid) {
+	write_type(buf, type_info_from_typeid(id));
+}
+
 write_type :: proc(buf: ^String_Buffer, ti: ^Type_Info) {
 	if ti == nil {
 		write_string(buf, "nil");
@@ -194,6 +198,9 @@ write_type :: proc(buf: ^String_Buffer, ti: ^Type_Info) {
 	case Type_Info_Any:
 		write_string(buf, "any");
 
+	case Type_Info_Type_Id:
+		write_string(buf, "typeid");
+
 	case Type_Info_Pointer:
 		if info.elem == nil {
 			write_string(buf, "rawptr");
@@ -914,6 +921,10 @@ fmt_value :: proc(fi: ^Fmt_Info, v: any, verb: rune) {
 			write_string(fi.buf, " @ ");
 			fmt_pointer(fi, ptr, 'p');
 		}
+
+	case Type_Info_Type_Id:
+		id := (^typeid)(v.data)^;
+		write_typeid(fi.buf, id);
 	}
 }
 
@@ -983,7 +994,9 @@ fmt_arg :: proc(fi: ^Fmt_Info, arg: any, verb: rune) {
 	case string:  fmt_string(fi, a, verb);
 	case cstring: fmt_cstring(fi, a, verb);
 
-	case:         fmt_value(fi, arg, verb);
+	case typeid:  write_typeid(fi.buf, a);
+
+	case: fmt_value(fi, arg, verb);
 	}
 
 }