Update charted to 0.4.8 and roll

packages/stack_trace/lib/src/frame.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.
 
-library frame;
-
 import 'package:path/path.dart' as path;
 
 import 'trace.dart';
 import 'unparsed_frame.dart';
 
 // #1      Foo._bar (file:///home/nweiz/code/stuff.dart:42:21)
 // #1      Foo._bar (file:///home/nweiz/code/stuff.dart:42)
 // #1      Foo._bar (file:///home/nweiz/code/stuff.dart)
 final _vmFrame = new RegExp(r'^#\d+\s+(\S.*) \((.+?)((?::\d+){0,2})\)$');
 
 //     at Object.stringify (native)
 //     at VW.call$0 (http://pub.dartlang.org/stuff.dart.js:560:28)
 //     at VW.call$0 (eval as fn
 //         (http://pub.dartlang.org/stuff.dart.js:560:28), efn:3:28)
 //     at http://pub.dartlang.org/stuff.dart.js:560:28
-final _v8Frame = new RegExp(
-    r'^\s*at (?:(\S.*?)(?: \[as [^\]]+\])? \((.*)\)|(.*))$');
+final _v8Frame =
+    new RegExp(r'^\s*at (?:(\S.*?)(?: \[as [^\]]+\])? \((.*)\)|(.*))$');
 
 // http://pub.dartlang.org/stuff.dart.js:560:28
 final _v8UrlLocation = new RegExp(r'^(.*):(\d+):(\d+)|native$');
 
 // eval as function (http://pub.dartlang.org/stuff.dart.js:560:28), efn:3:28
 // eval as function (http://pub.dartlang.org/stuff.dart.js:560:28)
 // eval as function (eval as otherFunction
 //     (http://pub.dartlang.org/stuff.dart.js:560:28))
-final _v8EvalLocation = new RegExp(
-    r'^eval at (?:\S.*?) \((.*)\)(?:, .*?:\d+:\d+)?$');
+final _v8EvalLocation =
+    new RegExp(r'^eval at (?:\S.*?) \((.*)\)(?:, .*?:\d+:\d+)?$');
 
 // .VW.call$0@http://pub.dartlang.org/stuff.dart.js:560
 // .VW.call$0("arg")@http://pub.dartlang.org/stuff.dart.js:560
 // .VW.call$0/name<@http://pub.dartlang.org/stuff.dart.js:560
 // .VW.call$0@http://pub.dartlang.org/stuff.dart.js:560:36
 // http://pub.dartlang.org/stuff.dart.js:560
-final _firefoxSafariFrame = new RegExp(
-    r'^'
+final _firefoxSafariFrame = new RegExp(r'^'
     r'(?:' // Member description. Not present in some Safari frames.
-      r'([^@(/]*)' // The actual name of the member.
-      r'(?:\(.*\))?' // Arguments to the member, sometimes captured by Firefox.
-      r'((?:/[^/]*)*)' // Extra characters indicating a nested closure.
-      r'(?:\(.*\))?' // Arguments to the closure.
-      r'@'
+    r'([^@(/]*)' // The actual name of the member.
+    r'(?:\(.*\))?' // Arguments to the member, sometimes captured by Firefox.
+    r'((?:/[^/]*)*)' // Extra characters indicating a nested closure.
+    r'(?:\(.*\))?' // Arguments to the closure.
+    r'@'
     r')?'
     r'(.*?)' // The frame's URL.
     r':'
     r'(\d*)' // The line number. Empty in Safari if it's unknown.
     r'(?::(\d*))?' // The column number. Not present in older browsers and
-                   // empty in Safari if it's unknown.
+    // empty in Safari if it's unknown.
     r'$');
 
-// foo/bar.dart 10:11 in Foo._bar
-// http://dartlang.org/foo/bar.dart in Foo._bar
-final _friendlyFrame = new RegExp(
-    r'^(\S+)(?: (\d+)(?::(\d+))?)?\s+([^\d]\S*)$');
+// foo/bar.dart 10:11 Foo._bar
+// foo/bar.dart 10:11 (anonymous function).dart.fn
+// http://dartlang.org/foo/bar.dart Foo._bar
+// data:... 10:11 Foo._bar
+final _friendlyFrame = new RegExp(r'^(\S+)(?: (\d+)(?::(\d+))?)?\s+([^\d].*)$');
 
 /// A regular expression that matches asynchronous member names generated by the
 /// VM.
 final _asyncBody = new RegExp(r'<(<anonymous closure>|[^>]+)_async_body>');
 
 final _initialDot = new RegExp(r"^\.");
 
 /// A single stack frame. Each frame points to a precise location in Dart code.
 class Frame {
   /// The URI of the file in which the code is located.
@@ skipping 43 matching lines @@
     if (line == null) return library;
     if (column == null) return '$library $line';
     return '$library $line:$column';
   }
 
   /// Returns a single frame of the current stack.
   ///
   /// By default, this will return the frame above the current method. If
   /// [level] is `0`, it will return the current method's frame; if [level] is
   /// higher than `1`, it will return higher frames.
-  factory Frame.caller([int level=1]) {
+  factory Frame.caller([int level = 1]) {
     if (level < 0) {
       throw new ArgumentError("Argument [level] must be greater than or equal "
           "to 0.");
     }
 
     return new Trace.current(level + 1).frames.first;
   }
 
   /// Parses a string representation of a Dart VM stack frame.
   factory Frame.parseVM(String frame) => _catchFormatException(frame, () {
-    // The VM sometimes folds multiple stack frames together and replaces them
-    // with "...".
-    if (frame == '...') {
-      return new Frame(new Uri(), null, null, '...');
-    }
+        // The VM sometimes folds multiple stack frames together and replaces them
+        // with "...".
+        if (frame == '...') {
+          return new Frame(new Uri(), null, null, '...');
+        }
 
-    var match = _vmFrame.firstMatch(frame);
-    if (match == null) return new UnparsedFrame(frame);
+        var match = _vmFrame.firstMatch(frame);
+        if (match == null) return new UnparsedFrame(frame);
 
-    // Get the pieces out of the regexp match. Function, URI and line should
-    // always be found. The column is optional.
-    var member = match[1]
-        .replaceAll(_asyncBody, "<async>")
-        .replaceAll("<anonymous closure>", "<fn>");
-    var uri = Uri.parse(match[2]);
+        // Get the pieces out of the regexp match. Function, URI and line should
+        // always be found. The column is optional.
+        var member = match[1]
+            .replaceAll(_asyncBody, "<async>")
+            .replaceAll("<anonymous closure>", "<fn>");
+        var uri = Uri.parse(match[2]);
 
-    var lineAndColumn = match[3].split(':');
-    var line = lineAndColumn.length > 1 ? int.parse(lineAndColumn[1]) : null;
-    var column = lineAndColumn.length > 2 ? int.parse(lineAndColumn[2]) : null;
-    return new Frame(uri, line, column, member);
-  });
+        var lineAndColumn = match[3].split(':');
+        var line =
+            lineAndColumn.length > 1 ? int.parse(lineAndColumn[1]) : null;
+        var column =
+            lineAndColumn.length > 2 ? int.parse(lineAndColumn[2]) : null;
+        return new Frame(uri, line, column, member);
+      });
 
   /// Parses a string representation of a Chrome/V8 stack frame.
   factory Frame.parseV8(String frame) => _catchFormatException(frame, () {
-    var match = _v8Frame.firstMatch(frame);
-    if (match == null) return new UnparsedFrame(frame);
+        var match = _v8Frame.firstMatch(frame);
+        if (match == null) return new UnparsedFrame(frame);
 
-    // v8 location strings can be arbitrarily-nested, since it adds a layer of
-    // nesting for each eval performed on that line.
-    parseLocation(location, member) {
-      var evalMatch = _v8EvalLocation.firstMatch(location);
-      while (evalMatch != null) {
-        location = evalMatch[1];
-        evalMatch = _v8EvalLocation.firstMatch(location);
-      }
+        // v8 location strings can be arbitrarily-nested, since it adds a layer of
+        // nesting for each eval performed on that line.
+        parseLocation(location, member) {
+          var evalMatch = _v8EvalLocation.firstMatch(location);
+          while (evalMatch != null) {
+            location = evalMatch[1];
+            evalMatch = _v8EvalLocation.firstMatch(location);
+          }
 
-      if (location == 'native') {
-        return new Frame(Uri.parse('native'), null, null, member);
-      }
+          if (location == 'native') {
+            return new Frame(Uri.parse('native'), null, null, member);
+          }
 
-      var urlMatch = _v8UrlLocation.firstMatch(location);
-      if (urlMatch == null) return new UnparsedFrame(frame);
+          var urlMatch = _v8UrlLocation.firstMatch(location);
+          if (urlMatch == null) return new UnparsedFrame(frame);
 
-      return new Frame(
-          _uriOrPathToUri(urlMatch[1]),
-          int.parse(urlMatch[2]),
-          int.parse(urlMatch[3]),
-          member);
-    }
+          return new Frame(_uriOrPathToUri(urlMatch[1]), int.parse(urlMatch[2]),
+              int.parse(urlMatch[3]), member);
+        }
 
-    // V8 stack frames can be in two forms.
-    if (match[2] != null) {
-      // The first form looks like " at FUNCTION (LOCATION)". V8 proper lists
-      // anonymous functions within eval as "<anonymous>", while IE10 lists them
-      // as "Anonymous function".
-      return parseLocation(match[2],
-          match[1].replaceAll("<anonymous>", "<fn>")
-                  .replaceAll("Anonymous function", "<fn>"));
-    } else {
-      // The second form looks like " at LOCATION", and is used for anonymous
-      // functions.
-      return parseLocation(match[3], "<fn>");
-    }
-  });
+        // V8 stack frames can be in two forms.
+        if (match[2] != null) {
+          // The first form looks like " at FUNCTION (LOCATION)". V8 proper lists
+          // anonymous functions within eval as "<anonymous>", while IE10 lists them
+          // as "Anonymous function".
+          return parseLocation(
+              match[2],
+              match[1]
+                  .replaceAll("<anonymous>", "<fn>")
+                  .replaceAll("Anonymous function", "<fn>")
+                  .replaceAll("(anonymous function)", "<fn>"));
+        } else {
+          // The second form looks like " at LOCATION", and is used for anonymous
+          // functions.
+          return parseLocation(match[3], "<fn>");
+        }
+      });
 
   /// Parses a string representation of a JavaScriptCore stack trace.
   factory Frame.parseJSCore(String frame) => new Frame.parseV8(frame);
 
   /// Parses a string representation of an IE stack frame.
   ///
   /// IE10+ frames look just like V8 frames. Prior to IE10, stack traces can't
   /// be retrieved.
   factory Frame.parseIE(String frame) => new Frame.parseV8(frame);
 
   /// Parses a string representation of a Firefox stack frame.
   factory Frame.parseFirefox(String frame) => _catchFormatException(frame, () {
-    var match = _firefoxSafariFrame.firstMatch(frame);
-    if (match == null) return new UnparsedFrame(frame);
+        var match = _firefoxSafariFrame.firstMatch(frame);
+        if (match == null) return new UnparsedFrame(frame);
 
-    // Normally this is a URI, but in a jsshell trace it can be a path.
-    var uri = _uriOrPathToUri(match[3]);
+        // Normally this is a URI, but in a jsshell trace it can be a path.
+        var uri = _uriOrPathToUri(match[3]);
 
-    var member;
-    if (match[1] != null) {
-      member = match[1];
-      member +=
-          new List.filled('/'.allMatches(match[2]).length, ".<fn>").join();
-      if (member == '') member = '<fn>';
+        var member;
+        if (match[1] != null) {
+          member = match[1];
+          member +=
+              new List.filled('/'.allMatches(match[2]).length, ".<fn>").join();
+          if (member == '') member = '<fn>';
 
-      // Some Firefox members have initial dots. We remove them for consistency
-      // with other platforms.
-      member = member.replaceFirst(_initialDot, '');
-    } else {
-      member = '<fn>';
-    }
+          // Some Firefox members have initial dots. We remove them for consistency
+          // with other platforms.
+          member = member.replaceFirst(_initialDot, '');
+        } else {
+          member = '<fn>';
+        }
 
-    var line = match[4] == '' ? null : int.parse(match[4]);
-    var column = match[5] == null || match[5] == '' ?
-        null : int.parse(match[5]);
-    return new Frame(uri, line, column, member);
-  });
+        var line = match[4] == '' ? null : int.parse(match[4]);
+        var column =
+            match[5] == null || match[5] == '' ? null : int.parse(match[5]);
+        return new Frame(uri, line, column, member);
+      });
 
   /// Parses a string representation of a Safari 6.0 stack frame.
   @Deprecated("Use Frame.parseSafari instead.")
   factory Frame.parseSafari6_0(String frame) => new Frame.parseFirefox(frame);
 
   /// Parses a string representation of a Safari 6.1+ stack frame.
   @Deprecated("Use Frame.parseSafari instead.")
   factory Frame.parseSafari6_1(String frame) => new Frame.parseFirefox(frame);
 
   /// Parses a string representation of a Safari stack frame.
   factory Frame.parseSafari(String frame) => new Frame.parseFirefox(frame);
 
   /// Parses this package's string representation of a stack frame.
   factory Frame.parseFriendly(String frame) => _catchFormatException(frame, () {
-    var match = _friendlyFrame.firstMatch(frame);
-    if (match == null) {
-      throw new FormatException(
-          "Couldn't parse package:stack_trace stack trace line '$frame'.");
-    }
+        var match = _friendlyFrame.firstMatch(frame);
+        if (match == null) {
+          throw new FormatException(
+              "Couldn't parse package:stack_trace stack trace line '$frame'.");
+        }
+        // Fake truncated data urls generated by the friendly stack trace format
+        // cause Uri.parse to throw an exception so we have to special case them.
+        var uri = match[1] == 'data:...'
+            ? new Uri.dataFromString('')
+            : Uri.parse(match[1]);
+        // If there's no scheme, this is a relative URI. We should interpret it as
+        // relative to the current working directory.
+        if (uri.scheme == '') {
+          uri = path.toUri(path.absolute(path.fromUri(uri)));
+        }
 
-    var uri = Uri.parse(match[1]);
-    // If there's no scheme, this is a relative URI. We should interpret it as
-    // relative to the current working directory.
-    if (uri.scheme == '') {
-      uri = path.toUri(path.absolute(path.fromUri(uri)));
-    }
-
-    var line = match[2] == null ? null : int.parse(match[2]);
-    var column = match[3] == null ? null : int.parse(match[3]);
-    return new Frame(uri, line, column, match[4]);
-  });
+        var line = match[2] == null ? null : int.parse(match[2]);
+        var column = match[3] == null ? null : int.parse(match[3]);
+        return new Frame(uri, line, column, match[4]);
+      });
 
   /// A regular expression matching an absolute URI.
   static final _uriRegExp = new RegExp(r'^[a-zA-Z][-+.a-zA-Z\d]*://');
 
   /// A regular expression matching a Windows path.
   static final _windowsRegExp = new RegExp(r'^([a-zA-Z]:[\\/]|\\\\)');
 
   /// Converts [uriOrPath], which can be a URI, a Windows path, or a Posix path,
   /// to a URI (absolute if possible).
   static Uri _uriOrPathToUri(String uriOrPath) {
@@ skipping 21 matching lines @@
       return body();
     } on FormatException catch (_) {
       return new UnparsedFrame(text);
     }
   }
 
   Frame(this.uri, this.line, this.column, this.member);
 
   String toString() => '$location in $member';
 }