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![Ben Konyi](/assets/img/avatar_default.png)
Fixes issue #36163. Change-Id: I33b8324e9c16fb12e80dd91beb275320b64f7316 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/103462 Reviewed-by: Ryan Macnak <rmacnak@google.com>
170 lines
5.2 KiB
Dart
170 lines
5.2 KiB
Dart
// Copyright (c) 2015, 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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/// Note: the VM concatenates all patch files into a single patch file. This
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/// file is the first patch in "dart:developer" which contains all the imports
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/// used by patches of that library. We plan to change this when we have a
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/// shared front end and simply use parts.
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import "dart:_internal" show patch;
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import "dart:async" show Future, Zone;
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import "dart:isolate" show SendPort;
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/// These are the additional parts of this patch library:
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// part "profiler.dart"
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// part "timeline.dart"
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@patch
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bool debugger({bool when: true, String message}) native "Developer_debugger";
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@patch
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Object inspect(Object object) native "Developer_inspect";
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@patch
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void log(String message,
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{DateTime time,
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int sequenceNumber,
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int level: 0,
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String name: '',
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Zone zone,
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Object error,
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StackTrace stackTrace}) {
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if (message is! String) {
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throw new ArgumentError.value(message, "message", "Must be a String");
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}
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time ??= new DateTime.now();
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if (time is! DateTime) {
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throw new ArgumentError.value(time, "time", "Must be a DateTime");
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}
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if (sequenceNumber == null) {
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sequenceNumber = _nextSequenceNumber++;
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} else {
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_nextSequenceNumber = sequenceNumber + 1;
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}
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_log(message, time.millisecondsSinceEpoch, sequenceNumber, level, name, zone,
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error, stackTrace);
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}
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int _nextSequenceNumber = 0;
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_log(String message, int timestamp, int sequenceNumber, int level, String name,
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Zone zone, Object error, StackTrace stackTrace) native "Developer_log";
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@patch
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void _postEvent(String eventKind, String eventData)
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native "Developer_postEvent";
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@patch
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ServiceExtensionHandler _lookupExtension(String method)
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native "Developer_lookupExtension";
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@patch
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_registerExtension(String method, ServiceExtensionHandler handler)
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native "Developer_registerExtension";
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// This code is only invoked when there is no other Dart code on the stack.
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@pragma("vm:entry-point", !const bool.fromEnvironment("dart.vm.product"))
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_runExtension(
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ServiceExtensionHandler handler,
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String method,
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List<String> parameterKeys,
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List<String> parameterValues,
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SendPort replyPort,
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Object id,
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bool trace_service) {
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var parameters = <String, String>{};
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for (var i = 0; i < parameterKeys.length; i++) {
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parameters[parameterKeys[i]] = parameterValues[i];
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}
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var response;
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try {
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response = handler(method, parameters);
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} catch (e, st) {
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var errorDetails = (st == null) ? '$e' : '$e\n$st';
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response = new ServiceExtensionResponse.error(
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ServiceExtensionResponse.kExtensionError, errorDetails);
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_postResponse(replyPort, id, response, trace_service);
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return;
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}
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if (response is! Future) {
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response = new ServiceExtensionResponse.error(
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ServiceExtensionResponse.kExtensionError,
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"Extension handler must return a Future");
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_postResponse(replyPort, id, response, trace_service);
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return;
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}
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response.catchError((e, st) {
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// Catch any errors eagerly and wrap them in a ServiceExtensionResponse.
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var errorDetails = (st == null) ? '$e' : '$e\n$st';
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return new ServiceExtensionResponse.error(
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ServiceExtensionResponse.kExtensionError, errorDetails);
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}).then((response) {
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// Post the valid response or the wrapped error after verifying that
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// the response is a ServiceExtensionResponse.
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if (response is! ServiceExtensionResponse) {
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response = new ServiceExtensionResponse.error(
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ServiceExtensionResponse.kExtensionError,
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"Extension handler must complete to a ServiceExtensionResponse");
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}
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_postResponse(replyPort, id, response, trace_service);
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}).catchError((e, st) {
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// We do not expect any errors to occur in the .then or .catchError blocks
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// but, suppress them just in case.
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});
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}
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// This code is only invoked by _runExtension.
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_postResponse(SendPort replyPort, Object id, ServiceExtensionResponse response,
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bool trace_service) {
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assert(replyPort != null);
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if (id == null) {
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if (trace_service) {
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print("vm-service: posting no response for request");
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}
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// No id -> no response.
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replyPort.send(null);
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return;
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}
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assert(id != null);
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StringBuffer sb = new StringBuffer();
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sb.write('{"jsonrpc":"2.0",');
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if (response.isError()) {
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if (trace_service) {
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print("vm-service: posting error response for request $id");
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}
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sb.write('"error":');
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} else {
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if (trace_service) {
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print("vm-service: posting response for request $id");
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}
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sb.write('"result":');
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}
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sb.write('${response._toString()},');
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if (id is String) {
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sb.write('"id":"$id"}');
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} else {
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sb.write('"id":$id}');
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}
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replyPort.send(sb.toString());
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}
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@patch
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int _getServiceMajorVersion() native "Developer_getServiceMajorVersion";
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@patch
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int _getServiceMinorVersion() native "Developer_getServiceMinorVersion";
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@patch
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void _getServerInfo(SendPort sendPort) native "Developer_getServerInfo";
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@patch
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void _webServerControl(SendPort sendPort, bool enable)
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native "Developer_webServerControl";
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@patch
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String _getIsolateIDFromSendPort(SendPort sendPort)
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native "Developer_getIsolateIDFromSendPort";
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