Interpolated String hack-around.

pkg/analyzer/lib/src/services/writer.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 source_writer;
 
 
+/// DEBUG flag indicating whether to use the experimental line-breaker
+const _USE_LINE_BREAKER = false;
+
+
 class Line {
 
   final tokens = <LineToken>[];
   final bool useTabs;
   final int spacesPerIndent;
   final int indent;
   final LinePrinter printer;
 
   Line({this.indent: 0, this.useTabs: false, this.spacesPerIndent: 2,
       this.printer: const SimpleLinePrinter()}) {
@@ skipping 231 matching lines @@
   Line currentLine;
 
   final String lineSeparator;
   int indentCount = 0;
 
   LinePrinter linePrinter;
   LineToken _lastToken;
 
   SourceWriter({this.indentCount: 0, this.lineSeparator: NEW_LINE,
       bool useTabs: false, int spacesPerIndent: 2, int maxLineLength: 80}) {
-//    linePrinter = new SimpleLineBreaker(maxLineLength, (n) =>
-//        getIndentString(n, useTabs: useTabs, spacesPerIndent: spacesPerIndent));
-    linePrinter = new SimpleLinePrinter();
+    if (_USE_LINE_BREAKER) {
+      linePrinter = new SimpleLineBreaker(maxLineLength, (n) =>
+          getIndentString(n, useTabs: useTabs, spacesPerIndent: spacesPerIndent));
+    } else {
+      linePrinter = new SimpleLinePrinter();
+    }
     currentLine = new Line(indent: indentCount, printer: linePrinter);
   }
 
   LineToken get lastToken => _lastToken;
 
   _addToken(LineToken token) {
     _lastToken = token;
     currentLine.addToken(token);
   }
 
@@ skipping 95 matching lines @@
 
 String getTabs(int n) => n < TABS.length ? TABS[n] : repeat('\t', n);
 
 String repeat(String ch, int times) {
   var sb = new StringBuffer();
   for (var i = 0; i < times; ++i) {
     sb.write(ch);
   }
   return sb.toString();
 }