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pkg/dev_compiler/tool/input_sdk/lib/developer/timeline.dart

Index: pkg/dev_compiler/tool/input_sdk/lib/developer/timeline.dart
diff --git a/pkg/dev_compiler/tool/input_sdk/lib/developer/timeline.dart b/pkg/dev_compiler/tool/input_sdk/lib/developer/timeline.dart
deleted file mode 100644
index b6118af6eabf3a337c7f9a5b1a36b864e1e7798d..0000000000000000000000000000000000000000
--- a/pkg/dev_compiler/tool/input_sdk/lib/developer/timeline.dart
+++ /dev/null
@@ -1,328 +0,0 @@
-// 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.
-
-part of dart.developer;
-
-const bool _isProduct = const bool.fromEnvironment("dart.vm.product");
-
-typedef dynamic TimelineSyncFunction();
-typedef Future TimelineAsyncFunction();
-
-/// Add to the timeline.
-class Timeline {
-  /// Start a synchronous operation labeled [name]. Optionally takes
-  /// a [Map] of [arguments]. This operation must be finished before
-  /// returning to the event queue.
-  static void startSync(String name, {Map arguments}) {
-    if (_isProduct) {
-      return;
-    }
-    if (name is! String) {
-      throw new ArgumentError.value(name,
-                                    'name',
-                                    'Must be a String');
-    }
-    if (!_isDartStreamEnabled()) {
-      // Push a null onto the stack and return.
-      _stack.add(null);
-      return;
-    }
-    var block = new _SyncBlock._(name, _getTraceClock(), _getThreadCpuClock());
-    if (arguments is Map) {
-      block._appendArguments(arguments);
-    }
-    _stack.add(block);
-  }
-
-  /// Finish the last synchronous operation that was started.
-  static void finishSync() {
-    if (_isProduct) {
-      return;
-    }
-    if (_stack.length == 0) {
-      throw new StateError(
-          'Uneven calls to startSync and finishSync');
-    }
-    // Pop top item off of stack.
-    var block = _stack.removeLast();
-    if (block == null) {
-      // Dart stream was disabled when startSync was called.
-      return;
-    }
-    // Finish it.
-    block.finish();
-  }
-
-  /// Emit an instant event.
-  static void instantSync(String name, {Map arguments}) {
-    if (_isProduct) {
-      return;
-    }
-    if (name is! String) {
-      throw new ArgumentError.value(name,
-                                    'name',
-                                    'Must be a String');
-    }
-    if (!_isDartStreamEnabled()) {
-      // Stream is disabled.
-      return;
-    }
-    Map instantArguments;
-    if (arguments is Map) {
-      instantArguments = new Map.from(arguments);
-    }
-    _reportInstantEvent(_getTraceClock(),
-                        'Dart',
-                        name,
-                        _argumentsAsJson(instantArguments));
-  }
-
-
-  /// A utility method to time a synchronous [function]. Internally calls
-  /// [function] bracketed by calls to [startSync] and [finishSync].
-  static dynamic timeSync(String name,
-                          TimelineSyncFunction function,
-                          {Map arguments}) {
-    startSync(name, arguments: arguments);
-    try {
-      return function();
-    } finally {
-      finishSync();
-    }
-  }
-
-  /// The current time stamp from the clock used by the timeline. Units are
-  /// microseconds.
-  static int get now => _getTraceClock();
-  static final List<_SyncBlock> _stack = new List<_SyncBlock>();
-  static final int _isolateId = _getIsolateNum();
-  static final String _isolateIdString = _isolateId.toString();
-}
-
-/// An asynchronous task on the timeline. An asynchronous task can have many
-/// (nested) synchronous operations. Synchronous operations can live longer than
-/// the current isolate event. To pass a [TimelineTask] to another isolate,
-/// you must first call [pass] to get the task id and then construct a new
-/// [TimelineTask] in the other isolate.
-class TimelineTask {
-  /// Create a task. [taskId] will be set by the system.
-  TimelineTask()
-      : _taskId = _getNextAsyncId() {
-  }
-
-  /// Create a task with an explicit [taskId]. This is useful if you are
-  /// passing a task from one isolate to another.
-  TimelineTask.withTaskId(int taskId)
-      : _taskId = taskId {
-    if (taskId is! int) {
-      throw new ArgumentError.value(taskId,
-                                    'taskId',
-                                    'Must be an int');
-    }
-  }
-
-  /// Start a synchronous operation within this task named [name].
-  /// Optionally takes a [Map] of [arguments].
-  void start(String name, {Map arguments}) {
-    if (_isProduct) {
-      return;
-    }
-    if (name is! String) {
-      throw new ArgumentError.value(name,
-                                    'name',
-                                    'Must be a String');
-    }
-    var block = new _AsyncBlock._(name, _taskId);
-    if (arguments is Map) {
-      block._appendArguments(arguments);
-    }
-    _stack.add(block);
-    block._start();
-  }
-
-  /// Emit an instant event for this task.
-  void instant(String name, {Map arguments}) {
-    if (_isProduct) {
-      return;
-    }
-    if (name is! String) {
-      throw new ArgumentError.value(name,
-                                    'name',
-                                    'Must be a String');
-    }
-    Map instantArguments;
-    if (arguments is Map) {
-      instantArguments = new Map.from(arguments);
-    }
-    _reportTaskEvent(_getTraceClock(),
-                     _taskId,
-                     'n',
-                     'Dart',
-                     name,
-                     _argumentsAsJson(instantArguments));
-  }
-
-  /// Finish the last synchronous operation that was started.
-  void finish() {
-    if (_isProduct) {
-      return;
-    }
-    if (_stack.length == 0) {
-      throw new StateError(
-          'Uneven calls to start and finish');
-    }
-    // Pop top item off of stack.
-    var block = _stack.removeLast();
-    block._finish();
-  }
-
-  /// Retrieve the [TimelineTask]'s task id. Will throw an exception if the
-  /// stack is not empty.
-  int pass() {
-    if (_stack.length > 0) {
-      throw new StateError(
-          'You cannot pass a TimelineTask without finishing all started '
-          'operations');
-    }
-    int r = _taskId;
-    return r;
-  }
-
-  final int _taskId;
-  final List<_AsyncBlock> _stack = [];
-}
-
-/// An asynchronous block of time on the timeline. This block can be kept
-/// open across isolate messages.
-class _AsyncBlock {
-  /// The category this block belongs to.
-  final String category = 'Dart';
-  /// The name of this block.
-  final String name;
-  /// The asynchronous task id.
-  final int _taskId;
-  /// An (optional) set of arguments which will be serialized to JSON and
-  /// associated with this block.
-  Map _arguments;
-
-  _AsyncBlock._(this.name, this._taskId);
-
-  // Emit the start event.
-  void _start() {
-    _reportTaskEvent(_getTraceClock(),
-                     _taskId,
-                     'b',
-                     category,
-                     name,
-                     _argumentsAsJson(_arguments));
-  }
-
-  // Emit the finish event.
-  void _finish() {
-    _reportTaskEvent(_getTraceClock(),
-                     _taskId,
-                     'e',
-                     category,
-                     name,
-                     _argumentsAsJson(null));
-  }
-
-  void _appendArguments(Map arguments) {
-    if (_arguments == null) {
-      _arguments = {};
-    }
-    _arguments.addAll(arguments);
-  }
-}
-
-/// A synchronous block of time on the timeline. This block should not be
-/// kept open across isolate messages.
-class _SyncBlock {
-  /// The category this block belongs to.
-  final String category = 'Dart';
-  /// The name of this block.
-  final String name;
-  /// An (optional) set of arguments which will be serialized to JSON and
-  /// associated with this block.
-  Map _arguments;
-  // The start time stamp.
-  final int _start;
-  // The start time stamp of the thread cpu clock.
-  final int _startCpu;
-
-  _SyncBlock._(this.name,
-               this._start,
-               this._startCpu);
-
-  /// Finish this block of time. At this point, this block can no longer be
-  /// used.
-  void finish() {
-    // Report event to runtime.
-    _reportCompleteEvent(_start,
-                         _startCpu,
-                         category,
-                         name,
-                         _argumentsAsJson(_arguments));
-  }
-
-  void _appendArguments(Map arguments) {
-    if (arguments == null) {
-      return;
-    }
-    if (_arguments == null) {
-      _arguments = {};
-    }
-    _arguments.addAll(arguments);
-  }
-}
-
-String _fastPathArguments;
-String _argumentsAsJson(Map arguments) {
-  if ((arguments == null) || (arguments.length == 0)) {
-    // Fast path no arguments. Avoid calling JSON.encode.
-    if (_fastPathArguments == null) {
-      _fastPathArguments = '{"isolateNumber":"${Timeline._isolateId}"}';
-    }
-    return _fastPathArguments;
-  }
-  // Add isolateNumber to arguments map.
-  arguments['isolateNumber'] = Timeline._isolateIdString;
-  return JSON.encode(arguments);
-}
-
-/// Returns true if the Dart Timeline stream is enabled.
-external bool _isDartStreamEnabled();
-
-/// Returns the next async task id.
-external int _getNextAsyncId();
-
-/// Returns the current value from the trace clock.
-external int _getTraceClock();
-
-/// Returns the current value from the thread CPU usage clock.
-external int _getThreadCpuClock();
-
-/// Returns the isolate's main port number.
-external int _getIsolateNum();
-
-/// Reports an event for a task.
-external void _reportTaskEvent(int start,
-                               int taskId,
-                               String phase,
-                               String category,
-                               String name,
-                               String argumentsAsJson);
-
-/// Reports a complete synchronous event.
-external void _reportCompleteEvent(int start,
-                                   int startCpu,
-                                   String category,
-                                   String name,
-                                   String argumentsAsJson);
-
-/// Reports an instant event.
-external void _reportInstantEvent(int start,
-                                  String category,
-                                  String name,
-                                  String argumentsAsJson);