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// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
// for details. All rights reserved. Use of this source code is governed by a
// BSD-style license that can be found in the LICENSE file.
#include "vm/bootstrap_natives.h"
#include "include/dart_api.h"
#include "vm/bigint_operations.h"
#include "vm/dart_entry.h"
#include "vm/dart_api_impl.h"
#include "vm/exceptions.h"
#include "vm/isolate.h"
#include "vm/native_entry.h"
#include "vm/object.h"
#include "vm/object_store.h"
#include "vm/symbols.h"
namespace dart {
DEFINE_NATIVE_ENTRY(Bool_fromEnvironment, 3) {
GET_NON_NULL_NATIVE_ARGUMENT(String, name, arguments->NativeArgAt(1));
GET_NATIVE_ARGUMENT(Bool, default_value, arguments->NativeArgAt(2));
// Call the embedder to supply us with the environment.
Api::Scope api_scope(isolate);
Dart_EnvironmentCallback callback = isolate->environment_callback();
if (callback != NULL) {
Dart_Handle result = callback(Api::NewHandle(isolate, name.raw()));
if (Dart_IsString(result)) {
const char *chars;
Dart_StringToCString(result, &chars);
if (strcmp("true", chars) == 0) return Bool::True().raw();
if (strcmp("false", chars) == 0) return Bool::False().raw();
} else if (Dart_IsError(result)) {
const Object& error =
Object::Handle(isolate, Api::UnwrapHandle(result));
} else if (!Dart_IsNull(result)) {
String::Handle(String::New("Illegal environment value")));
return default_value.raw();
} // namespace dart