Change is_utf16 field to encoding and use an enum

core/encoding/cbor/tags.odin

@@ -298,7 +298,7 @@ tag_base64_unmarshal :: proc(_: ^Tag_Implementation, d: Decoder, _: Tag_Number,
 
 	#partial switch t in ti.variant {
 	case reflect.Type_Info_String:
-		assert(!t.is_utf16)
+		assert(t.encoding == .UTF_8)
 		if t.is_cstring {
 			length  := base64.decoded_len(bytes)
 			builder := strings.builder_make(0, length+1)

core/encoding/cbor/unmarshal.odin

@@ -335,7 +335,7 @@ _unmarshal_value :: proc(d: Decoder, v: any, hdr: Header, allocator := context.a
 _unmarshal_bytes :: proc(d: Decoder, v: any, ti: ^reflect.Type_Info, hdr: Header, add: Add, allocator := context.allocator, loc := #caller_location) -> (err: Unmarshal_Error) {
 	#partial switch t in ti.variant {
 	case reflect.Type_Info_String:
-		assert(!t.is_utf16)
+		assert(t.encoding == .UTF_8)
 
 		bytes := err_conv(_decode_bytes(d, add, allocator=allocator, loc=loc)) or_return
 

core/encoding/json/unmarshal.odin

@@ -571,7 +571,7 @@ unmarshal_object :: proc(p: ^Parser, v: any, end_token: Token_Kind) -> (err: Unm
 
 			#partial switch tk in t.key.variant {
 				case runtime.Type_Info_String:
-					assert(!tk.is_utf16)
+					assert(tk.encoding == .UTF_8)
 
 					key_ptr = rawptr(&key)
 					key_cstr: cstring

core/flags/internal_rtti.odin

@@ -127,7 +127,7 @@ parse_and_set_pointer_by_base_type :: proc(ptr: rawptr, str: string, type_info:
 		}
 
 	case runtime.Type_Info_String:
-		assert(!specific_type_info.is_utf16)
+		assert(specific_type_info.encoding == .UTF_8)
 
 		if specific_type_info.is_cstring {
 			cstr_ptr := (^cstring)(ptr)

core/reflect/types.odin

@@ -514,8 +514,9 @@ write_type_writer :: #force_no_inline proc(w: io.Writer, ti: ^Type_Info, n_writt
 			io.write_byte(w, 'c', &n) or_return
 		}
 		io.write_string(w, "string", &n)  or_return
-		if info.is_utf16 {
-			io.write_string(w, "16", &n) or_return
+		switch info.encoding {
+		case .UTF_8:  /**/
+		case .UTF_16: io.write_string(w, "16", &n) or_return
 		}
 	case Type_Info_Boolean:
 		switch ti.id {