Revert "Move dart2js from sdk/lib/_internal/compiler to pkg/compiler"

pkg/compiler/lib/src/apiimpl.dart

Index: pkg/compiler/lib/src/apiimpl.dart
diff --git a/pkg/compiler/lib/src/apiimpl.dart b/pkg/compiler/lib/src/apiimpl.dart
deleted file mode 100644
index a81aabc837a3e89c78c6acd9d4c75bee50c21a53..0000000000000000000000000000000000000000
--- a/pkg/compiler/lib/src/apiimpl.dart
+++ /dev/null
@@ -1,363 +0,0 @@
-// 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.
-
-library leg_apiimpl;
-
-import 'dart:async';
-
-import '../compiler.dart' as api;
-import 'dart2jslib.dart' as leg;
-import 'tree/tree.dart' as tree;
-import 'elements/elements.dart' as elements;
-import 'package:_internal/libraries.dart';
-import 'source_file.dart';
-
-const bool forceIncrementalSupport =
-    const bool.fromEnvironment('DART2JS_EXPERIMENTAL_INCREMENTAL_SUPPORT');
-
-class Compiler extends leg.Compiler {
-  api.CompilerInputProvider provider;
-  api.DiagnosticHandler handler;
-  final Uri libraryRoot;
-  final Uri packageRoot;
-  List<String> options;
-  Map<String, dynamic> environment;
-  bool mockableLibraryUsed = false;
-  final Set<String> allowedLibraryCategories;
-
-  leg.GenericTask userHandlerTask;
-  leg.GenericTask userProviderTask;
-
-  Compiler(this.provider,
-           api.CompilerOutputProvider outputProvider,
-           this.handler,
-           this.libraryRoot,
-           this.packageRoot,
-           List<String> options,
-           this.environment)
-      : this.options = options,
-        this.allowedLibraryCategories = getAllowedLibraryCategories(options),
-        super(
-            outputProvider: outputProvider,
-            enableTypeAssertions: hasOption(options, '--enable-checked-mode'),
-            enableUserAssertions: hasOption(options, '--enable-checked-mode'),
-            trustTypeAnnotations:
-                hasOption(options, '--trust-type-annotations'),
-            enableMinification: hasOption(options, '--minify'),
-            preserveUris: hasOption(options, '--preserve-uris'),
-            enableNativeLiveTypeAnalysis:
-                !hasOption(options, '--disable-native-live-type-analysis'),
-            emitJavaScript: !(hasOption(options, '--output-type=dart') ||
-                              hasOption(options, '--output-type=dart-multi')),
-            dart2dartMultiFile: hasOption(options, '--output-type=dart-multi'),
-            generateSourceMap: !hasOption(options, '--no-source-maps'),
-            analyzeAllFlag: hasOption(options, '--analyze-all'),
-            analyzeOnly: hasOption(options, '--analyze-only'),
-            analyzeMain: hasOption(options, '--analyze-main'),
-            analyzeSignaturesOnly:
-                hasOption(options, '--analyze-signatures-only'),
-            strips: extractCsvOption(options, '--force-strip='),
-            enableConcreteTypeInference:
-                hasOption(options, '--enable-concrete-type-inference'),
-            disableTypeInferenceFlag:
-                hasOption(options, '--disable-type-inference'),
-            preserveComments: hasOption(options, '--preserve-comments'),
-            verbose: hasOption(options, '--verbose'),
-            sourceMapUri: extractUriOption(options, '--source-map='),
-            outputUri: extractUriOption(options, '--out='),
-            terseDiagnostics: hasOption(options, '--terse'),
-            dumpInfo: hasOption(options, '--dump-info'),
-            buildId: extractStringOption(
-                options, '--build-id=',
-                "build number could not be determined"),
-            showPackageWarnings:
-                hasOption(options, '--show-package-warnings'),
-            useContentSecurityPolicy: hasOption(options, '--csp'),
-            hasIncrementalSupport:
-                forceIncrementalSupport ||
-                hasOption(options, '--incremental-support'),
-            suppressWarnings: hasOption(options, '--suppress-warnings'),
-            enableAsyncAwait: hasOption(options, '--enable-async')) {
-    tasks.addAll([
-        userHandlerTask = new leg.GenericTask('Diagnostic handler', this),
-        userProviderTask = new leg.GenericTask('Input provider', this),
-    ]);
-    if (!libraryRoot.path.endsWith("/")) {
-      throw new ArgumentError("libraryRoot must end with a /");
-    }
-    if (packageRoot != null && !packageRoot.path.endsWith("/")) {
-      throw new ArgumentError("packageRoot must end with a /");
-    }
-    if (enableAsyncAwait && !analyzeOnly) {
-      throw new ArgumentError(
-          "--enable-async is currently only supported with --analyze-only");
-    }
-  }
-
-  static String extractStringOption(List<String> options,
-                                    String prefix,
-                                    String defaultValue) {
-    for (String option in options) {
-      if (option.startsWith(prefix)) {
-        return option.substring(prefix.length);
-      }
-    }
-    return defaultValue;
-  }
-
-  static Uri extractUriOption(List<String> options, String prefix) {
-    var option = extractStringOption(options, prefix, null);
-    return (option == null) ? null : Uri.parse(option);
-  }
-
-  // CSV: Comma separated values.
-  static List<String> extractCsvOption(List<String> options, String prefix) {
-    for (String option in options) {
-      if (option.startsWith(prefix)) {
-        return option.substring(prefix.length).split(',');
-      }
-    }
-    return const <String>[];
-  }
-
-  static Set<String> getAllowedLibraryCategories(List<String> options) {
-    var result = extractCsvOption(options, '--categories=');
-    if (result.isEmpty) {
-      result = ['Client'];
-    }
-    result.add('Shared');
-    result.add('Internal');
-    return new Set<String>.from(result);
-  }
-
-  static bool hasOption(List<String> options, String option) {
-    return options.indexOf(option) >= 0;
-  }
-
-  // TODO(johnniwinther): Merge better with [translateDartUri] when
-  // [scanBuiltinLibrary] is removed.
-  String lookupLibraryPath(String dartLibraryName) {
-    LibraryInfo info = LIBRARIES[dartLibraryName];
-    if (info == null) return null;
-    if (!info.isDart2jsLibrary) return null;
-    if (!allowedLibraryCategories.contains(info.category)) return null;
-    String path = info.dart2jsPath;
-    if (path == null) {
-      path = info.path;
-    }
-    return "lib/$path";
-  }
-
-  String lookupPatchPath(String dartLibraryName) {
-    LibraryInfo info = LIBRARIES[dartLibraryName];
-    if (info == null) return null;
-    if (!info.isDart2jsLibrary) return null;
-    String path = info.dart2jsPatchPath;
-    if (path == null) return null;
-    return "lib/$path";
-  }
-
-  void log(message) {
-    handler(null, null, null, message, api.Diagnostic.VERBOSE_INFO);
-  }
-
-  /// See [leg.Compiler.translateResolvedUri].
-  Uri translateResolvedUri(elements.LibraryElement importingLibrary,
-                           Uri resolvedUri, tree.Node node) {
-    if (resolvedUri.scheme == 'dart') {
-      return translateDartUri(importingLibrary, resolvedUri, node);
-    }
-    return resolvedUri;
-  }
-
-  /**
-   * Reads the script designated by [readableUri].
-   */
-  Future<leg.Script> readScript(leg.Spannable node, Uri readableUri) {
-    if (!readableUri.isAbsolute) {
-      if (node == null) node = leg.NO_LOCATION_SPANNABLE;
-      internalError(node,
-          'Relative uri $readableUri provided to readScript(Uri).');
-    }
-
-    // We need to store the current element since we are reporting read errors
-    // asynchronously and therefore need to restore the current element for
-    // [node] to be valid.
-    elements.Element element = currentElement;
-    void reportReadError(exception) {
-      withCurrentElement(element, () {
-        reportError(node,
-                    leg.MessageKind.READ_SCRIPT_ERROR,
-                    {'uri': readableUri, 'exception': exception});
-      });
-    }
-
-    Uri resourceUri = translateUri(node, readableUri);
-    // TODO(johnniwinther): Wrap the result from [provider] in a specialized
-    // [Future] to ensure that we never execute an asynchronous action without
-    // setting up the current element of the compiler.
-    return new Future.sync(() => callUserProvider(resourceUri)).then((data) {
-      SourceFile sourceFile;
-      String resourceUriString = resourceUri.toString();
-      if (data is List<int>) {
-        sourceFile = new Utf8BytesSourceFile(resourceUriString, data);
-      } else if (data is String) {
-        sourceFile = new StringSourceFile(resourceUriString, data);
-      } else {
-        String message = "Expected a 'String' or a 'List<int>' from the input "
-                         "provider, but got: ${Error.safeToString(data)}.";
-        reportReadError(message);
-      }
-      // We use [readableUri] as the URI for the script since need to preserve
-      // the scheme in the script because [Script.uri] is used for resolving
-      // relative URIs mentioned in the script. See the comment on
-      // [LibraryLoader] for more details.
-      return new leg.Script(readableUri, resourceUri, sourceFile);
-    }).catchError((error) {
-      reportReadError(error);
-      return null;
-    });
-  }
-
-  /**
-   * Translates a readable URI into a resource URI.
-   *
-   * See [LibraryLoader] for terminology on URIs.
-   */
-  Uri translateUri(leg.Spannable node, Uri readableUri) {
-    switch (readableUri.scheme) {
-      case 'package': return translatePackageUri(node, readableUri);
-      default: return readableUri;
-    }
-  }
-
-  Uri translateDartUri(elements.LibraryElement importingLibrary,
-                       Uri resolvedUri, tree.Node node) {
-    LibraryInfo libraryInfo = LIBRARIES[resolvedUri.path];
-    String path = lookupLibraryPath(resolvedUri.path);
-    if (libraryInfo != null &&
-        libraryInfo.category == "Internal") {
-      bool allowInternalLibraryAccess = false;
-      if (importingLibrary != null) {
-        if (importingLibrary.isPlatformLibrary || importingLibrary.isPatch) {
-          allowInternalLibraryAccess = true;
-        } else if (importingLibrary.canonicalUri.path.contains(
-                       'dart/tests/compiler/dart2js_native')) {
-          allowInternalLibraryAccess = true;
-        }
-      }
-      if (!allowInternalLibraryAccess) {
-        if (importingLibrary != null) {
-          reportError(
-              node,
-              leg.MessageKind.INTERNAL_LIBRARY_FROM,
-              {'resolvedUri': resolvedUri,
-               'importingUri': importingLibrary.canonicalUri});
-        } else {
-          reportError(
-              node,
-              leg.MessageKind.INTERNAL_LIBRARY,
-              {'resolvedUri': resolvedUri});
-        }
-      }
-    }
-    if (path == null) {
-      reportError(node, leg.MessageKind.LIBRARY_NOT_FOUND,
-                  {'resolvedUri': resolvedUri});
-      return null;
-    }
-    if (resolvedUri.path == 'html' ||
-        resolvedUri.path == 'io') {
-      // TODO(ahe): Get rid of mockableLibraryUsed when test.dart
-      // supports this use case better.
-      mockableLibraryUsed = true;
-    }
-    return libraryRoot.resolve(path);
-  }
-
-  Uri resolvePatchUri(String dartLibraryPath) {
-    String patchPath = lookupPatchPath(dartLibraryPath);
-    if (patchPath == null) return null;
-    return libraryRoot.resolve(patchPath);
-  }
-
-  Uri translatePackageUri(leg.Spannable node, Uri uri) {
-    if (packageRoot == null) {
-      reportFatalError(
-          node, leg.MessageKind.PACKAGE_ROOT_NOT_SET, {'uri': uri});
-    }
-    return packageRoot.resolve(uri.path);
-  }
-
-  Future<bool> run(Uri uri) {
-    log('Allowed library categories: $allowedLibraryCategories');
-    return super.run(uri).then((bool success) {
-      int cumulated = 0;
-      for (final task in tasks) {
-        int elapsed = task.timing;
-        if (elapsed != 0) {
-          cumulated += elapsed;
-          log('${task.name} took ${elapsed}msec');
-        }
-      }
-      int total = totalCompileTime.elapsedMilliseconds;
-      log('Total compile-time ${total}msec;'
-          ' unaccounted ${total - cumulated}msec');
-      return success;
-    });
-  }
-
-  void reportDiagnostic(leg.Spannable node,
-                        leg.Message message,
-                        api.Diagnostic kind) {
-    leg.SourceSpan span = spanFromSpannable(node);
-    if (identical(kind, api.Diagnostic.ERROR)
-        || identical(kind, api.Diagnostic.CRASH)) {
-      compilationFailed = true;
-    }
-    // [:span.uri:] might be [:null:] in case of a [Script] with no [uri]. For
-    // instance in the [Types] constructor in typechecker.dart.
-    if (span == null || span.uri == null) {
-      callUserHandler(null, null, null, '$message', kind);
-    } else {
-      callUserHandler(
-          translateUri(null, span.uri), span.begin, span.end, '$message', kind);
-    }
-  }
-
-  bool get isMockCompilation {
-    return mockableLibraryUsed
-      && (options.indexOf('--allow-mock-compilation') != -1);
-  }
-
-  void callUserHandler(Uri uri, int begin, int end,
-                       String message, api.Diagnostic kind) {
-    try {
-      userHandlerTask.measure(() {
-        handler(uri, begin, end, message, kind);
-      });
-    } catch (ex, s) {
-      diagnoseCrashInUserCode(
-          'Uncaught exception in diagnostic handler', ex, s);
-      rethrow;
-    }
-  }
-
-  Future callUserProvider(Uri uri) {
-    try {
-      return userProviderTask.measure(() => provider(uri));
-    } catch (ex, s) {
-      diagnoseCrashInUserCode('Uncaught exception in input provider', ex, s);
-      rethrow;
-    }
-  }
-
-  void diagnoseCrashInUserCode(String message, exception, stackTrace) {
-    hasCrashed = true;
-    print('$message: ${tryToString(exception)}');
-    print(tryToString(stackTrace));
-  }
-
-  fromEnvironment(String name) => environment[name];
-}