Converted Observatory cpu-profile element

runtime/observatory/lib/src/models/objects/sample_profile.dart

+// Copyright (c) 2016, 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 models;
+
+enum ProfileTreeDirection {
+  inclusive,
+  exclusive
+}
+
+abstract class SampleProfile {
+  int get sampleCount;
+  int get stackDepth;
+  double get sampleRate;
+  double get timeSpan;
+
+  FunctionCallTree loadFunctionTree(ProfileTreeDirection direction);
+  CodeCallTree loadCodeTree(ProfileTreeDirection direction);
+}
+
+abstract class Profile {
+  double get normalizedExclusiveTicks;
+  double get normalizedInclusiveTicks;
+}
+
+abstract class ProfileCode extends Profile {
+  CodeRef get code;
+}
+
+abstract class ProfileFunction extends Profile {
+  FunctionRef get function;
+}
+
+typedef bool CallTreeNodeFilter(CallTreeNode);
+
+abstract class CallTree {
+  CallTree filtered(CallTreeNodeFilter filter);
+}
+
+abstract class CodeCallTree extends CallTree {
+  CodeCallTreeNode get root;
+  CodeCallTree filtered(CallTreeNodeFilter filter);
+}
+
+abstract class FunctionCallTree extends CallTree {
+  FunctionCallTreeNode get root;
+  FunctionCallTree filtered(CallTreeNodeFilter filter);
+}
+
+abstract class CallTreeNode {
+  double get percentage;
+  Iterable<CallTreeNode> get children;
+}
+
+abstract class CodeCallTreeNode extends CallTreeNode {
+  ProfileCode get profileCode;
+  Iterable<CodeCallTreeNode> get children;
+}
+
+abstract class FunctionCallTreeNode extends CallTreeNode {
+  ProfileFunction get profileFunction;
+  Iterable<FunctionCallTreeNode> get children;
+}