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pkg/dev_compiler/tool/input_sdk/lib/core/stacktrace.dart

-// Copyright (c) 2013, 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.core;
-
-/**
- * An interface implemented by all stack trace objects.
- *
- * A [StackTrace] is intended to convey information to the user about the call
- * sequence that triggered an exception.
- *
- * These objects are created by the runtime, it is not possible to create
- * them programmatically.
- */
-abstract class StackTrace {
-  StackTrace();  // In case existing classes extend StackTrace.
-
-  /**
-   * Create a `StackTrace` object from [stackTraceString].
-   *
-   * The created stack trace will have a `toString` method returning
-   * `stackTraceString`.
-   *
-   * The `stackTraceString` can be a string returned by some other
-   * stack trace, or it can be any string at all.
-   * If the string doesn't look like a stack trace, code that interprets
-   * stack traces is likely to fail, so fake stack traces should be used
-   * with care.
-   */
-  factory StackTrace.fromString(String stackTraceString) = _StringStackTrace;
-
-  /**
-   * Returns a representation of the current stack trace.
-   *
-   * This is similar to what can be achieved by doing:
-   *
-   *     try { throw 0; } catch (_, stack) { return stack; }
-   *
-   * The getter achieves this without throwing, except on platforms that
-   * have no other way to get a stack trace.
-   */
-  external static StackTrace get current;
-
-  /**
-   * Returns a [String] representation of the stack trace.
-   *
-   * The string represents the full stack trace starting from
-   * the point where a throw ocurred to the top of the current call sequence.
-   *
-   * The exact format of the string representation is not final.
-   */
-  String toString();
-}
-
-class _StringStackTrace implements StackTrace {
-  final String _stackTrace;
-  _StringStackTrace(this._stackTrace);
-  String toString() => _stackTrace;
-}