Remove processing of dart code, summary.dart, simplified info.dart

pkg/polymer/lib/src/dart_parser.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.
-
-/**
- * Parser for Dart code based on the experimental analyzer.
- */
-library dart_parser;
-
-import 'package:analyzer_experimental/src/generated/ast.dart';
-import 'package:analyzer_experimental/src/generated/error.dart';
-import 'package:analyzer_experimental/src/generated/parser.dart';
-import 'package:analyzer_experimental/src/generated/scanner.dart';
-import 'package:source_maps/span.dart' show SourceFile, SourceFileSegment, Location;
-import 'utils.dart' show escapeDartString;
-
-/** Information extracted from a source Dart file. */
-class DartCodeInfo {
-
-  /** Library qualified identifier, if any. */
-  final String libraryName;
-
-  /** Library which the code is part-of, if any. */
-  final String partOf;
-
-  /** Declared imports, exports, and parts. */
-  final List<Directive> directives;
-
-  /** Source file representation used to compute source map information. */
-  final SourceFile sourceFile;
-
-  /** The parsed code. */
-  final CompilationUnit compilationUnit;
-
-  /** The full source code. */
-  final String code;
-
-  DartCodeInfo(this.libraryName, this.partOf, this.directives, code,
-      this.sourceFile, [compilationUnit])
-      : this.code = code,
-        this.compilationUnit = compilationUnit == null
-          ? _parseCompilationUnit(code) : compilationUnit;
-
-  bool get isPart =>
-      compilationUnit.directives.any((d) => d is PartOfDirective);
-
-  int get directivesEnd {
-    if (compilationUnit.directives.length == 0) return 0;
-    return compilationUnit.directives.last.end;
-  }
-
-  /**
-   * The position of the first "part" directive. If none is found,
-   * this behaves like [directivesEnd].
-   */
-  int get firstPartOffset {
-    for (var directive in compilationUnit.directives) {
-      if (directive is PartDirective) return directive.offset;
-    }
-    // No part directives, just return directives end.
-    return directivesEnd;
-  }
-
-  /** Gets the code after the [directives]. */
-  String codeAfterDirectives() => code.substring(directivesEnd);
-
-  ClassDeclaration findClass(String name) {
-    for (var decl in compilationUnit.declarations) {
-      if (decl is ClassDeclaration) {
-        if (decl.name.name == name) return decl;
-      }
-    }
-    return null;
-  }
-}
-
-SimpleStringLiteral createStringLiteral(String contents) {
-  var lexeme = "'${escapeDartString(contents)}'";
-  var token = new StringToken(TokenType.STRING, lexeme, null);
-  return new SimpleStringLiteral.full(token, contents);
-}
-
-
-/**
- * Parse and extract top-level directives from [code].
- *
- */
-// TODO(sigmund): log emitted error/warning messages
-DartCodeInfo parseDartCode(String path, String code, [Location offset]) {
-  var unit = _parseCompilationUnit(code);
-
-  // Extract some information from the compilation unit.
-  String libraryName, partName;
-  var directives = [];
-  int directiveEnd = 0;
-  for (var directive in unit.directives) {
-    if (directive is LibraryDirective) {
-      libraryName = directive.name.name;
-    } else if (directive is PartOfDirective) {
-      partName = directive.libraryName.name;
-    } else {
-      assert(directive is UriBasedDirective);
-      // Normalize the library URI.
-      var uriNode = directive.uri;
-      if (uriNode is! SimpleStringLiteral) {
-        String uri = uriNode.accept(new ConstantEvaluator());
-        directive.uri = createStringLiteral(uri);
-      }
-      directives.add(directive);
-    }
-  }
-
-  var sourceFile = offset == null
-      ? new SourceFile.text(path, code)
-      : new SourceFileSegment(path, code, offset);
-
-  return new DartCodeInfo(libraryName, partName, directives, code,
-      sourceFile, unit);
-}
-
-CompilationUnit _parseCompilationUnit(String code) {
-  var errorListener = new _ErrorCollector();
-  var scanner = new StringScanner(null, code, errorListener);
-  var token = scanner.tokenize();
-  var parser = new Parser(null, errorListener);
-  return parser.parseCompilationUnit(token);
-}
-
-class _ErrorCollector extends AnalysisErrorListener {
-  final errors = new List<AnalysisError>();
-  onError(error) => errors.add(error);
-}