fschneider@google.com
16857e0b13
It caused severe performance regressions that should be addressed. TBR=asiva@google.com Review URL: https://codereview.chromium.org//177733002 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@32959 260f80e4-7a28-3924-810f-c04153c831b5
47 lines
1.6 KiB
C++
47 lines
1.6 KiB
C++
// Copyright (c) 2012, the Dart project authors. Please see the AUTHORS file
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// for details. All rights reserved. Use of this source code is governed by a
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// BSD-style license that can be found in the LICENSE file.
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#include "vm/bootstrap_natives.h"
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#include "include/dart_api.h"
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#include "vm/bigint_operations.h"
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#include "vm/dart_entry.h"
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#include "vm/dart_api_impl.h"
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#include "vm/exceptions.h"
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#include "vm/isolate.h"
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#include "vm/native_entry.h"
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#include "vm/object.h"
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#include "vm/object_store.h"
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#include "vm/symbols.h"
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namespace dart {
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DEFINE_NATIVE_ENTRY(Bool_fromEnvironment, 3) {
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GET_NON_NULL_NATIVE_ARGUMENT(String, name, arguments->NativeArgAt(1));
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GET_NATIVE_ARGUMENT(Bool, default_value, arguments->NativeArgAt(2));
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// Call the embedder to supply us with the environment.
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Dart_EnvironmentCallback callback = isolate->environment_callback();
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if (callback != NULL) {
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Dart_Handle result = callback(Api::NewHandle(isolate, name.raw()));
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if (Dart_IsString(result)) {
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const char *chars;
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Dart_StringToCString(result, &chars);
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if (strcmp("true", chars) == 0) return Bool::True().raw();
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if (strcmp("false", chars) == 0) return Bool::False().raw();
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} else if (Dart_IsError(result)) {
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const Object& error =
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Object::Handle(isolate, Api::UnwrapHandle(result));
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Exceptions::ThrowArgumentError(
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String::Handle(
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String::New(Error::Cast(error).ToErrorCString())));
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} else if (!Dart_IsNull(result)) {
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Exceptions::ThrowArgumentError(
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String::Handle(String::New("Illegal environment value")));
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}
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}
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return default_value.raw();
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}
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} // namespace dart
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