sdk/lib/_internal/js_runtime/lib/developer_patch.dart

// Copyright (c) 2015, 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.

// Patch file for dart:developer library.

import 'dart:_js_helper' show patch;
import 'dart:_foreign_helper' show JS;
import 'dart:async' show Zone;
import 'dart:isolate';

@patch
@pragma('dart2js:tryInline')
bool debugger({bool when = true, String? message}) {
  if (when) {
    JS('', 'debugger');
  }
  return when;
}

@patch
Object? inspect(Object? object) {
  return object;
}

@patch
void log(String message,
    {DateTime? time,
    int? sequenceNumber,
    int level = 0,
    String name = '',
    Zone? zone,
    Object? error,
    StackTrace? stackTrace}) {
  // TODO.
}

final _extensions = <String, ServiceExtensionHandler>{};

@patch
ServiceExtensionHandler? _lookupExtension(String method) {
  return _extensions[method];
}

@patch
_registerExtension(String method, ServiceExtensionHandler handler) {
  _extensions[method] = handler;
}

@patch
void _postEvent(String eventKind, String eventData) {
  // TODO.
}

@patch
bool _isDartStreamEnabled() {
  return false;
}

@patch
int _getTraceClock() {
  // TODO.
  return _clockValue++;
}

int _clockValue = 0;

@patch
void _reportFlowEvent(
    String category, String name, int type, int id, String argumentsAsJson) {
  // TODO.
}

@patch
void _reportInstantEvent(String category, String name, String argumentsAsJson) {
  // TODO.
}

@patch
int _getNextAsyncId() {
  return 0;
}

@patch
void _reportTaskEvent(int taskId, String phase, String category, String name,
    String argumentsAsJson) {
  // TODO.
}

@patch
int _getServiceMajorVersion() {
  return 0;
}

@patch
int _getServiceMinorVersion() {
  return 0;
}

@patch
void _getServerInfo(SendPort sendPort) {
  sendPort.send(null);
}

@patch
void _webServerControl(SendPort sendPort, bool enable, bool? silenceOutput) {
  sendPort.send(null);
}

@patch
String? _getIsolateIDFromSendPort(SendPort sendPort) {
  return null;
}

@patch
class UserTag {
  @patch
  factory UserTag(String label) = _FakeUserTag;

  @patch
  static UserTag get defaultTag => _FakeUserTag._defaultTag;
}

class _FakeUserTag implements UserTag {
  static final _instances = <String, _FakeUserTag>{};

  _FakeUserTag.real(this.label);

  factory _FakeUserTag(String label) {
    // Canonicalize by name.
    var existingTag = _instances[label];
    if (existingTag != null) {
      return existingTag;
    }
    // Throw an exception if we've reached the maximum number of user tags.
    if (_instances.length == UserTag.MAX_USER_TAGS) {
      throw UnsupportedError(
          'UserTag instance limit (${UserTag.MAX_USER_TAGS}) reached.');
    }
    return _instances[label] = _FakeUserTag.real(label);
  }

  final String label;

  UserTag makeCurrent() {
    var old = _currentTag;
    _currentTag = this;
    return old;
  }

  static final UserTag _defaultTag = new _FakeUserTag('Default');
}

var _currentTag = _FakeUserTag._defaultTag;

@patch
UserTag getCurrentTag() => _currentTag;