lib/compiler/implementation/scanner/scanner_task.dart

// Copyright (c) 2012, 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 scanner;

class ScannerTask extends CompilerTask {
  ScannerTask(Compiler compiler) : super(compiler);
  String get name => 'Scanner';

  void scanLibrary(LibraryElement library) {
    var compilationUnit = library.entryCompilationUnit;
    compiler.log("scanning library ${compilationUnit.script.name}");
    scan(compilationUnit);
  }

  void scan(CompilationUnitElement compilationUnit) {
    measure(() {
      scanElements(compilationUnit);
    });
  }

  void scanElements(CompilationUnitElement compilationUnit) {
    Script script = compilationUnit.script;
    Token tokens = new StringScanner(script.text).tokenize();
    compiler.dietParser.dietParse(compilationUnit, tokens);
  }
}

class DietParserTask extends CompilerTask {
  DietParserTask(Compiler compiler) : super(compiler);
  final String name = 'Diet Parser';

  dietParse(CompilationUnitElement compilationUnit, Token tokens) {
    measure(() {
      Function idGenerator = compiler.getNextFreeClassId;
      ElementListener listener =
          new ElementListener(compiler, compilationUnit, idGenerator);
      PartialParser parser = new PartialParser(listener);
      parser.parseUnit(tokens);
    });
  }
}