| // 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. |
| 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)); |
| Exceptions::ThrowArgumentError( |
| String::Handle( |
| String::New(Error::Cast(error).ToErrorCString()))); |
| } else if (!Dart_IsNull(result)) { |
| Exceptions::ThrowArgumentError( |
| String::Handle(String::New("Illegal environment value"))); |
| } |
| } |
| return default_value.raw(); |
| } |
| |
| } // namespace dart |