Move NoSideEffectToString to C++

test/cctest/test-object.cc

+// Copyright 2016 the V8 project authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "src/v8.h"
+
+#include "test/cctest/cctest.h"
+
+using namespace v8::internal;
+
+static void CheckObject(Isolate* isolate, Handle<Object> obj,
+                        const char* string) {
+  Object* print_string = *Object::NoSideEffectsToString(isolate, obj);
+  CHECK(String::cast(print_string)->IsUtf8EqualTo(CStrVector(string)));
+}
+
+static void CheckSmi(Isolate* isolate, int value, const char* string) {
+  Handle<Object> handle(Smi::FromInt(value), isolate);
+  CheckObject(isolate, handle, string);
+}
+
+static void CheckString(Isolate* isolate, const char* value,
+                        const char* string) {
+  Handle<String> handle(isolate->factory()->NewStringFromAsciiChecked(value));
+  CheckObject(isolate, handle, string);
+}
+
+static void CheckNumber(Isolate* isolate, double value, const char* string) {
+  Handle<Object> number = isolate->factory()->NewNumber(value);
+  CHECK(number->IsNumber());
+  CheckObject(isolate, number, string);
+}
+
+static void CheckBoolean(Isolate* isolate, bool value, const char* string) {
+  CheckObject(isolate, value ? isolate->factory()->true_value()
+                             : isolate->factory()->false_value(),
+              string);
+}
+
+TEST(NoSideEffectsToString) {
+  CcTest::InitializeVM();
+  Isolate* isolate = CcTest::i_isolate();
+  Factory* factory = isolate->factory();
+
+  HandleScope scope(isolate);
+
+  CheckString(isolate, "fisk hest", "fisk hest");
+  CheckNumber(isolate, 42.3, "42.3");
+  CheckSmi(isolate, 42, "42");
+  CheckBoolean(isolate, true, "true");
+  CheckBoolean(isolate, false, "false");
+  CheckBoolean(isolate, false, "false");
+  CheckObject(isolate, factory->undefined_value(), "undefined");
+  CheckObject(isolate, factory->null_value(), "null");
+
+  int lanes[] = {0, 1, 2, 3};
+  CheckObject(isolate, factory->NewInt32x4(lanes), "SIMD.Int32x4(0, 1, 2, 3)");
+
+  CheckObject(isolate, factory->error_to_string(), "[object Error]");
+  CheckObject(isolate, factory->stack_trace_symbol(),
+              "Symbol(stack_trace_symbol)");
+  CheckObject(isolate, factory->NewError(isolate->error_function(),
+                                         factory->empty_string()),
+              "Error");
+  CheckObject(isolate, factory->NewError(
+                           isolate->error_function(),
+                           factory->NewStringFromAsciiChecked("fisk hest")),
+              "Error: fisk hest");
+  CheckObject(isolate, factory->NewJSObject(isolate->object_function()),
+              "#<Object>");
+}