Add String.toLocaleLowerCase

builtin_string.go

@@ -486,9 +486,13 @@ func builtinString_localeCompare(call FunctionCall) Value {
 }
 
 /*
-An alternate version
+An alternate version of String.trim
 func builtinString_trim(call FunctionCall) Value {
 	checkObjectCoercible(call.This)
 	return toValue_string(strings.TrimFunc(toString(call.This), isWhiteSpaceOrLineTerminator))
 }
 */
+
+func builtinString_toLocaleLowerCase(call FunctionCall) Value {
+	return builtinString_toLowerCase(call)
+}

inline

@@ -289,6 +289,7 @@ sub newContext {
                 "trimLeft", 0,
                 "trimRight", 0,
                 "localeCompare", 1,
+                "toLocaleLowerCase", 0,
             );
             return
             ".${class}Prototype =",

inline.go

@@ -1731,6 +1731,25 @@ func _newContext(runtime *_runtime) {
 				call: _nativeCallFunction(builtinString_localeCompare),
 			},
 		}
+		toLocaleLowerCase_function := &_object{
+			runtime:     runtime,
+			class:       "Function",
+			objectClass: _classObject,
+			prototype:   runtime.Global.FunctionPrototype,
+			extensible:  true,
+			property: map[string]_property{
+				"length": _property{
+					mode: 0,
+					value: Value{
+						_valueType: valueNumber,
+						value:      0,
+					},
+				},
+			},
+			value: _functionObject{
+				call: _nativeCallFunction(builtinString_toLocaleLowerCase),
+			},
+		}
 		fromCharCode_function := &_object{
 			runtime:     runtime,
 			class:       "Function",
@@ -1905,6 +1924,13 @@ func _newContext(runtime *_runtime) {
 						value:      localeCompare_function,
 					},
 				},
+				"toLocaleLowerCase": _property{
+					mode: 0101,
+					value: Value{
+						_valueType: valueObject,
+						value:      toLocaleLowerCase_function,
+					},
+				},
 			},
 		}
 		runtime.Global.String = &_object{

string_test.go

@@ -218,6 +218,8 @@ func TestString_toCase(t *testing.T) {
 	test := runTest()
 	test(`"abc".toLowerCase()`, "abc")
 	test(`"ABC".toLowerCase()`, "abc")
+	test(`"abc".toLocaleLowerCase()`, "abc")
+	test(`"ABC".toLocaleLowerCase()`, "abc")
 	test(`"abc".toUpperCase()`, "ABC")
 	test(`"ABC".toUpperCase()`, "ABC")
 }