Stop running pub get at gclient sync time and fix build bugs

mojo/public/dart/third_party/analyzer/lib/src/generated/sdk_io.dart

+// Copyright (c) 2014, 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 engine.sdk.io;
+
+import 'dart:io';
+
+import 'package:analyzer/src/context/context.dart' as newContext;
+import 'package:analyzer/src/generated/java_engine.dart';
+
+import 'ast.dart';
+import 'engine.dart';
+import 'error.dart';
+import 'java_core.dart';
+import 'java_engine_io.dart';
+import 'java_io.dart';
+import 'parser.dart';
+import 'scanner.dart';
+import 'sdk.dart';
+import 'source_io.dart';
+
+/**
+ * A Dart SDK installed in a specified directory. Typical Dart SDK layout is
+ * something like...
+ *
+ *     dart-sdk/
+ *        bin/
+ *           dart[.exe]  <-- VM
+ *        lib/
+ *           core/
+ *              core.dart
+ *              ... other core library files ...
+ *           ... other libraries ...
+ *        util/
+ *           ... Dart utilities ...
+ *     Chromium/   <-- Dartium typically exists in a sibling directory
+ */
+class DirectoryBasedDartSdk implements DartSdk {
+  /**
+   * The default SDK, or `null` if the default SDK either has not yet been
+   * created or cannot be created for some reason.
+   */
+  static DirectoryBasedDartSdk _DEFAULT_SDK;
+
+  /**
+   * The name of the directory within the SDK directory that contains
+   * executables.
+   */
+  static String _BIN_DIRECTORY_NAME = "bin";
+
+  /**
+   * The name of the directory on non-Mac that contains dartium.
+   */
+  static String _DARTIUM_DIRECTORY_NAME = "chromium";
+
+  /**
+   * The name of the dart2js executable on non-windows operating systems.
+   */
+  static String _DART2JS_EXECUTABLE_NAME = "dart2js";
+
+  /**
+   * The name of the file containing the dart2js executable on Windows.
+   */
+  static String _DART2JS_EXECUTABLE_NAME_WIN = "dart2js.bat";
+
+  /**
+   * The name of the file containing the Dartium executable on Linux.
+   */
+  static String _DARTIUM_EXECUTABLE_NAME_LINUX = "chrome";
+
+  /**
+   * The name of the file containing the Dartium executable on Macintosh.
+   */
+  static String _DARTIUM_EXECUTABLE_NAME_MAC =
+      "Chromium.app/Contents/MacOS/Chromium";
+
+  /**
+   * The name of the file containing the Dartium executable on Windows.
+   */
+  static String _DARTIUM_EXECUTABLE_NAME_WIN = "Chrome.exe";
+
+  /**
+   * The name of the [System] property whose value is the path to the default
+   * Dart SDK directory.
+   */
+  static String _DEFAULT_DIRECTORY_PROPERTY_NAME = "com.google.dart.sdk";
+
+  /**
+   * The name of the directory within the SDK directory that contains
+   * documentation for the libraries.
+   */
+  static String _DOCS_DIRECTORY_NAME = "docs";
+
+  /**
+   * The suffix added to the name of a library to derive the name of the file
+   * containing the documentation for that library.
+   */
+  static String _DOC_FILE_SUFFIX = "_api.json";
+
+  /**
+   * The name of the directory within the SDK directory that contains the
+   * sdk_library_metadata directory.
+   */
+  static String _INTERNAL_DIR = "_internal";
+
+  /**
+   * The name of the sdk_library_metadata directory that contains the package
+   * holding the libraries.dart file.
+   */
+  static String _SDK_LIBRARY_METADATA_DIR = "sdk_library_metadata";
+
+  /**
+   * The name of the directory within the sdk_library_metadata that contains
+   * libraries.dart.
+   */
+  static String _SDK_LIBRARY_METADATA_LIB_DIR = "lib";
+
+  /**
+   * The name of the directory within the SDK directory that contains the
+   * libraries.
+   */
+  static String _LIB_DIRECTORY_NAME = "lib";
+
+  /**
+   * The name of the libraries file.
+   */
+  static String _LIBRARIES_FILE = "libraries.dart";
+
+  /**
+   * The name of the pub executable on windows.
+   */
+  static String _PUB_EXECUTABLE_NAME_WIN = "pub.bat";
+
+  /**
+   * The name of the pub executable on non-windows operating systems.
+   */
+  static String _PUB_EXECUTABLE_NAME = "pub";
+
+  /**
+   * The name of the file within the SDK directory that contains the version
+   * number of the SDK.
+   */
+  static String _VERSION_FILE_NAME = "version";
+
+  /**
+   * The name of the file containing the VM executable on the Windows operating
+   * system.
+   */
+  static String _VM_EXECUTABLE_NAME_WIN = "dart.exe";
+
+  /**
+   * The name of the file containing the VM executable on non-Windows operating
+   * systems.
+   */
+  static String _VM_EXECUTABLE_NAME = "dart";
+
+  /**
+   * Return the default Dart SDK, or `null` if the directory containing the
+   * default SDK cannot be determined (or does not exist).
+   */
+  static DirectoryBasedDartSdk get defaultSdk {
+    if (_DEFAULT_SDK == null) {
+      JavaFile sdkDirectory = defaultSdkDirectory;
+      if (sdkDirectory == null) {
+        return null;
+      }
+      _DEFAULT_SDK = new DirectoryBasedDartSdk(sdkDirectory);
+    }
+    return _DEFAULT_SDK;
+  }
+
+  /**
+   * Return the default directory for the Dart SDK, or `null` if the directory
+   * cannot be determined (or does not exist). The default directory is provided
+   * by a system property named `com.google.dart.sdk`.
+   */
+  static JavaFile get defaultSdkDirectory {
+    String sdkProperty =
+        JavaSystemIO.getProperty(_DEFAULT_DIRECTORY_PROPERTY_NAME);
+    if (sdkProperty == null) {
+      return null;
+    }
+    JavaFile sdkDirectory = new JavaFile(sdkProperty);
+    if (!sdkDirectory.exists()) {
+      return null;
+    }
+    return sdkDirectory;
+  }
+
+  /**
+   * The [AnalysisContext] which is used for all of the sources in this sdk.
+   */
+  InternalAnalysisContext _analysisContext;
+
+  /**
+   * The directory containing the SDK.
+   */
+  JavaFile _sdkDirectory;
+
+  /**
+   * The revision number of this SDK, or `"0"` if the revision number cannot be
+   * discovered.
+   */
+  String _sdkVersion;
+
+  /**
+   * The file containing the dart2js executable.
+   */
+  JavaFile _dart2jsExecutable;
+
+  /**
+   * The file containing the Dartium executable.
+   */
+  JavaFile _dartiumExecutable;
+
+  /**
+   * The file containing the pub executable.
+   */
+  JavaFile _pubExecutable;
+
+  /**
+   * The file containing the VM executable.
+   */
+  JavaFile _vmExecutable;
+
+  /**
+   * A mapping from Dart library URI's to the library represented by that URI.
+   */
+  LibraryMap _libraryMap;
+
+  /**
+   * Initialize a newly created SDK to represent the Dart SDK installed in the
+   * [sdkDirectory]. The flag [useDart2jsPaths] is `true` if the dart2js path
+   * should be used when it is available
+   */
+  DirectoryBasedDartSdk(JavaFile sdkDirectory, [bool useDart2jsPaths = false]) {
+    this._sdkDirectory = sdkDirectory.getAbsoluteFile();
+    _libraryMap = initialLibraryMap(useDart2jsPaths);
+  }
+
+  @override
+  AnalysisContext get context {
+    if (_analysisContext == null) {
+      if (AnalysisEngine.instance.useTaskModel) {
+        _analysisContext = new newContext.SdkAnalysisContext();
+      } else {
+        _analysisContext = new SdkAnalysisContext();
+      }
+      SourceFactory factory = new SourceFactory([new DartUriResolver(this)]);
+      _analysisContext.sourceFactory = factory;
+      List<String> uris = this.uris;
+      ChangeSet changeSet = new ChangeSet();
+      for (String uri in uris) {
+        changeSet.addedSource(factory.forUri(uri));
+      }
+      _analysisContext.applyChanges(changeSet);
+    }
+    return _analysisContext;
+  }
+
+  /**
+   * Return the file containing the dart2js executable, or `null` if it does not
+   * exist.
+   */
+  JavaFile get dart2JsExecutable {
+    if (_dart2jsExecutable == null) {
+      _dart2jsExecutable = _verifyExecutable(new JavaFile.relative(
+          new JavaFile.relative(_sdkDirectory, _BIN_DIRECTORY_NAME),
+          OSUtilities.isWindows()
+              ? _DART2JS_EXECUTABLE_NAME_WIN
+              : _DART2JS_EXECUTABLE_NAME));
+    }
+    return _dart2jsExecutable;
+  }
+
+  /**
+   * Return the name of the file containing the Dartium executable.
+   */
+  String get dartiumBinaryName {
+    if (OSUtilities.isWindows()) {
+      return _DARTIUM_EXECUTABLE_NAME_WIN;
+    } else if (OSUtilities.isMac()) {
+      return _DARTIUM_EXECUTABLE_NAME_MAC;
+    } else {
+      return _DARTIUM_EXECUTABLE_NAME_LINUX;
+    }
+  }
+
+  /**
+   * Return the file containing the Dartium executable, or `null` if it does not
+   * exist.
+   */
+  JavaFile get dartiumExecutable {
+    if (_dartiumExecutable == null) {
+      _dartiumExecutable = _verifyExecutable(
+          new JavaFile.relative(dartiumWorkingDirectory, dartiumBinaryName));
+    }
+    return _dartiumExecutable;
+  }
+
+  /**
+   * Return the directory where dartium can be found (the directory that will be
+   * the working directory is Dartium is invoked without changing the default).
+   */
+  JavaFile get dartiumWorkingDirectory =>
+      getDartiumWorkingDirectory(_sdkDirectory.getParentFile());
+
+  /**
+   * Return the directory containing the SDK.
+   */
+  JavaFile get directory => _sdkDirectory;
+
+  /**
+   * Return the directory containing documentation for the SDK.
+   */
+  JavaFile get docDirectory =>
+      new JavaFile.relative(_sdkDirectory, _DOCS_DIRECTORY_NAME);
+
+  /**
+   * Return `true` if this SDK includes documentation.
+   */
+  bool get hasDocumentation => docDirectory.exists();
+
+  /**
+   * Return `true` if the Dartium binary is available.
+   */
+  bool get isDartiumInstalled => dartiumExecutable != null;
+
+  /**
+   * Return the directory within the SDK directory that contains the libraries.
+   */
+  JavaFile get libraryDirectory =>
+      new JavaFile.relative(_sdkDirectory, _LIB_DIRECTORY_NAME);
+
+  /**
+   * Return the file containing the Pub executable, or `null` if it does not exist.
+   */
+  JavaFile get pubExecutable {
+    if (_pubExecutable == null) {
+      _pubExecutable = _verifyExecutable(new JavaFile.relative(
+          new JavaFile.relative(_sdkDirectory, _BIN_DIRECTORY_NAME),
+          OSUtilities.isWindows()
+              ? _PUB_EXECUTABLE_NAME_WIN
+              : _PUB_EXECUTABLE_NAME));
+    }
+    return _pubExecutable;
+  }
+
+  @override
+  List<SdkLibrary> get sdkLibraries => _libraryMap.sdkLibraries;
+
+  /**
+   * Return the revision number of this SDK, or `"0"` if the revision number
+   * cannot be discovered.
+   */
+  @override
+  String get sdkVersion {
+    if (_sdkVersion == null) {
+      _sdkVersion = DartSdk.DEFAULT_VERSION;
+      JavaFile revisionFile =
+          new JavaFile.relative(_sdkDirectory, _VERSION_FILE_NAME);
+      try {
+        String revision = revisionFile.readAsStringSync();
+        if (revision != null) {
+          _sdkVersion = revision.trim();
+        }
+      } on FileSystemException {
+        // Fall through to return the default.
+      }
+    }
+    return _sdkVersion;
+  }
+
+  @override
+  List<String> get uris => _libraryMap.uris;
+
+  /**
+   * Return the name of the file containing the VM executable.
+   */
+  String get vmBinaryName {
+    if (OSUtilities.isWindows()) {
+      return _VM_EXECUTABLE_NAME_WIN;
+    } else {
+      return _VM_EXECUTABLE_NAME;
+    }
+  }
+
+  /**
+   * Return the file containing the VM executable, or `null` if it does not
+   * exist.
+   */
+  JavaFile get vmExecutable {
+    if (_vmExecutable == null) {
+      _vmExecutable = _verifyExecutable(new JavaFile.relative(
+          new JavaFile.relative(_sdkDirectory, _BIN_DIRECTORY_NAME),
+          vmBinaryName));
+    }
+    return _vmExecutable;
+  }
+
+  /**
+   * Determine the search order for trying to locate the [_LIBRARIES_FILE].
+   */
+  Iterable<JavaFile> get _libraryMapLocations sync* {
+    yield new JavaFile.relative(
+        new JavaFile.relative(
+            new JavaFile.relative(
+                new JavaFile.relative(libraryDirectory, _INTERNAL_DIR),
+                _SDK_LIBRARY_METADATA_DIR),
+            _SDK_LIBRARY_METADATA_LIB_DIR),
+        _LIBRARIES_FILE);
+    yield new JavaFile.relative(
+        new JavaFile.relative(libraryDirectory, _INTERNAL_DIR),
+        _LIBRARIES_FILE);
+  }
+
+  @override
+  Source fromFileUri(Uri uri) {
+    JavaFile file = new JavaFile.fromUri(uri);
+    String filePath = file.getAbsolutePath();
+    String libPath = libraryDirectory.getAbsolutePath();
+    if (!filePath.startsWith("$libPath${JavaFile.separator}")) {
+      return null;
+    }
+    filePath = filePath.substring(libPath.length + 1);
+    for (SdkLibrary library in _libraryMap.sdkLibraries) {
+      String libraryPath = library.path;
+      if (filePath.replaceAll('\\', '/') == libraryPath) {
+        String path = library.shortName;
+        try {
+          return new FileBasedSource(file, parseUriWithException(path));
+        } on URISyntaxException catch (exception, stackTrace) {
+          AnalysisEngine.instance.logger.logInformation(
+              "Failed to create URI: $path",
+              new CaughtException(exception, stackTrace));
+          return null;
+        }
+      }
+      libraryPath = new JavaFile(libraryPath).getParent();
+      if (filePath.startsWith("$libraryPath${JavaFile.separator}")) {
+        String path =
+            "${library.shortName}/${filePath.substring(libraryPath.length + 1)}";
+        try {
+          return new FileBasedSource(file, parseUriWithException(path));
+        } on URISyntaxException catch (exception, stackTrace) {
+          AnalysisEngine.instance.logger.logInformation(
+              "Failed to create URI: $path",
+              new CaughtException(exception, stackTrace));
+          return null;
+        }
+      }
+    }
+    return null;
+  }
+
+  /**
+   * Return the directory where dartium can be found (the directory that will be
+   * the working directory if Dartium is invoked without changing the default),
+   * assuming that the Editor was installed in the [installDir].
+   */
+  JavaFile getDartiumWorkingDirectory(JavaFile installDir) =>
+      new JavaFile.relative(installDir, _DARTIUM_DIRECTORY_NAME);
+
+  /**
+   * Return the auxiliary documentation file for the library with the given
+   * [libraryName], or `null` if no such file exists.
+   */
+  JavaFile getDocFileFor(String libraryName) {
+    JavaFile dir = docDirectory;
+    if (!dir.exists()) {
+      return null;
+    }
+    JavaFile libDir = new JavaFile.relative(dir, libraryName);
+    JavaFile docFile =
+        new JavaFile.relative(libDir, "$libraryName$_DOC_FILE_SUFFIX");
+    if (docFile.exists()) {
+      return docFile;
+    }
+    return null;
+  }
+
+  @override
+  SdkLibrary getSdkLibrary(String dartUri) => _libraryMap.getLibrary(dartUri);
+
+  /**
+   * Read all of the configuration files to initialize the library maps. The
+   * flag [useDart2jsPaths] is `true` if the dart2js path should be used when it
+   * is available. Return the initialized library map.
+   */
+  LibraryMap initialLibraryMap(bool useDart2jsPaths) {
+    List<String> searchedPaths = <String>[];
+    var lastStackTrace = null;
+    var lastException = null;
+    for (JavaFile librariesFile in _libraryMapLocations) {
+      try {
+        String contents = librariesFile.readAsStringSync();
+        return new SdkLibrariesReader(useDart2jsPaths)
+            .readFromFile(librariesFile, contents);
+      } catch (exception, stackTrace) {
+        searchedPaths.add(librariesFile.getAbsolutePath());
+        lastException = exception;
+        lastStackTrace = stackTrace;
+      }
+    }
+    AnalysisEngine.instance.logger.logError(
+        "Could not initialize the library map from $searchedPaths",
+        new CaughtException(lastException, lastStackTrace));
+    return new LibraryMap();
+  }
+
+  @override
+  Source mapDartUri(String dartUri) {
+    String libraryName;
+    String relativePath;
+    int index = dartUri.indexOf('/');
+    if (index >= 0) {
+      libraryName = dartUri.substring(0, index);
+      relativePath = dartUri.substring(index + 1);
+    } else {
+      libraryName = dartUri;
+      relativePath = "";
+    }
+    SdkLibrary library = getSdkLibrary(libraryName);
+    if (library == null) {
+      return null;
+    }
+    try {
+      JavaFile file = new JavaFile.relative(libraryDirectory, library.path);
+      if (!relativePath.isEmpty) {
+        file = file.getParentFile();
+        file = new JavaFile.relative(file, relativePath);
+      }
+      return new FileBasedSource(file, parseUriWithException(dartUri));
+    } on URISyntaxException {
+      return null;
+    }
+  }
+
+  /**
+   * Return the given [file] if it exists and is executable, or `null` if it
+   * does not exist or is not executable.
+   */
+  JavaFile _verifyExecutable(JavaFile file) =>
+      file.isExecutable() ? file : null;
+}
+
+/**
+ * An object used to read and parse the libraries file
+ * (dart-sdk/lib/_internal/sdk_library_metadata/lib/libraries.dart) for information
+ * about the libraries in an SDK. The library information is represented as a
+ * Dart file containing a single top-level variable whose value is a const map.
+ * The keys of the map are the names of libraries defined in the SDK and the
+ * values in the map are info objects defining the library. For example, a
+ * subset of a typical SDK might have a libraries file that looks like the
+ * following:
+ *
+ *     final Map<String, LibraryInfo> LIBRARIES = const <LibraryInfo> {
+ *       // Used by VM applications
+ *       "builtin" : const LibraryInfo(
+ *         "builtin/builtin_runtime.dart",
+ *         category: "Server",
+ *         platforms: VM_PLATFORM),
+ *
+ *       "compiler" : const LibraryInfo(
+ *         "compiler/compiler.dart",
+ *         category: "Tools",
+ *         platforms: 0),
+ *     };
+ */
+class SdkLibrariesReader {
+  /**
+   * A flag indicating whether the dart2js path should be used when it is
+   * available.
+   */
+  final bool _useDart2jsPaths;
+
+  /**
+   * Initialize a newly created library reader to use the dart2js path if
+   * [_useDart2jsPaths] is `true`.
+   */
+  SdkLibrariesReader(this._useDart2jsPaths);
+
+  /**
+   * Return the library map read from the given [file], given that the content
+   * of the file is already known to be [libraryFileContents].
+   */
+  LibraryMap readFromFile(JavaFile file, String libraryFileContents) =>
+      readFromSource(new FileBasedSource(file), libraryFileContents);
+
+  /**
+   * Return the library map read from the given [source], given that the content
+   * of the file is already known to be [libraryFileContents].
+   */
+  LibraryMap readFromSource(Source source, String libraryFileContents) {
+    BooleanErrorListener errorListener = new BooleanErrorListener();
+    Scanner scanner = new Scanner(
+        source, new CharSequenceReader(libraryFileContents), errorListener);
+    Parser parser = new Parser(source, errorListener);
+    CompilationUnit unit = parser.parseCompilationUnit(scanner.tokenize());
+    SdkLibrariesReader_LibraryBuilder libraryBuilder =
+        new SdkLibrariesReader_LibraryBuilder(_useDart2jsPaths);
+    // If any syntactic errors were found then don't try to visit the AST
+    // structure.
+    if (!errorListener.errorReported) {
+      unit.accept(libraryBuilder);
+    }
+    return libraryBuilder.librariesMap;
+  }
+}