Revert "Update all Angular libs (run update_all.sh)."

third_party/pkg/di/lib/transformer/refactor.dart

-library di.transformers.refactor;
-
-import 'package:analyzer/src/generated/ast.dart';
-import 'package:analyzer/src/generated/element.dart';
-import 'package:barback/barback.dart';
-import 'package:code_transformers/resolver.dart';
-import 'package:source_maps/refactor.dart';
-
-
-/// Transforms all simple identifiers of [identifier] to be
-/// [importPrefix].[replacement] in the entry point of the application.
-///
-/// When the identifier is replaced, this function also adds a prefixed import
-/// of the form `import "[importUrl]" as [importPrefix]`.
-///
-/// This will resolve the full name of [identifier] and warn if it cannot be
-/// resolved. This will only modify the main entry point of the application and
-/// will not traverse into parts.
-void transformIdentifiers(Transform transform, Resolver resolver,
-    {String identifier, String replacement, String importUrl,
-    String importPrefix}) {
-
-  var identifierElement = resolver.getLibraryVariable(identifier);
-  if (identifierElement != null) {
-    identifierElement = identifierElement.getter;
-  } else {
-    identifierElement = resolver.getLibraryFunction(identifier);
-  }
-
-  if (identifierElement == null) {
-    // TODO(blois) enable once on barback 0.12.0
-    // transform.logger.fine('Unable to resolve $identifier, not '
-    //     'transforming entry point.');
-    transform.addOutput(transform.primaryInput);
-    return;
-  }
-
-  var lib = resolver.getLibrary(transform.primaryInput.id);
-  var transaction = resolver.createTextEditTransaction(lib);
-  var unit = lib.definingCompilationUnit.node;
-
-  unit.accept(new _IdentifierTransformer(transaction, identifierElement,
-      '$importPrefix.$replacement', transform.logger));
-
-  if (transaction.hasEdits) {
-    _addImport(transaction, unit, importUrl, importPrefix);
-  }
-  _commitTransaction(transaction, transform);
-}
-
-/// Commits the transaction if there have been edits, otherwise just adds
-/// the input as an output.
-void _commitTransaction(TextEditTransaction transaction, Transform transform) {
-  var id = transform.primaryInput.id;
-
-  if (transaction.hasEdits) {
-    var printer = transaction.commit();
-    var url = id.path.startsWith('lib/')
-        ? 'package:${id.package}/${id.path.substring(4)}' : id.path;
-    printer.build(url);
-    transform.addOutput(new Asset.fromString(id, printer.text));
-  } else {
-    // No modifications, so just pass the source through.
-    transform.addOutput(transform.primaryInput);
-  }
-}
-
-/// Injects an import into the list of imports in the file.
-void _addImport(TextEditTransaction transaction, CompilationUnit unit,
-    String uri, String prefix) {
-  var libDirective;
-  for (var directive in unit.directives) {
-    if (directive is ImportDirective) {
-      transaction.edit(directive.keyword.offset, directive.keyword.offset,
-          'import \'$uri\' as $prefix;\n');
-      return;
-    } else if (directive is LibraryDirective) {
-      libDirective = directive;
-    }
-  }
-
-  // No imports, add after the library directive if there was one.
-  if (libDirective != null) {
-    transaction.edit(libDirective.endToken.offset + 2,
-        libDirective.endToken.offset + 2,
-        'import \'$uri\' as $prefix;\n');
-  }
-}
-
-/// Vistior which changes every reference to a resolved element to a specific
-/// string value.
-class _IdentifierTransformer extends GeneralizingAstVisitor {
-  final TextEditTransaction transaction;
-  /// The element which all references to should be replaced.
-  final Element original;
-  /// The text which should replace [original].
-  final String replacement;
-  /// The current logger.
-  final TransformLogger logger;
-
-  _IdentifierTransformer(this.transaction, this.original, this.replacement,
-      this.logger);
-
-  visitIdentifier(Identifier node) {
-    if (node.bestElement == original) {
-      transaction.edit(node.beginToken.offset, node.endToken.end, replacement);
-      return;
-    }
-
-    super.visitIdentifier(node);
-  }
-
-  // Top-level methods are not treated as prefixed identifiers, so handle those
-  // here.
-  visitMethodInvocation(MethodInvocation m) {
-    if (m.methodName.bestElement == original) {
-      if (m.target is SimpleIdentifier) {
-        // Include the prefix in the rename.
-        transaction.edit(m.target.beginToken.offset, m.methodName.endToken.end,
-            replacement);
-      } else {
-        transaction.edit(m.methodName.beginToken.offset,
-            m.methodName.endToken.end, replacement);
-      }
-      return;
-    }
-    super.visitMethodInvocation(m);
-  }
-
-  // Skip the contents of imports/exports/parts
-  visitUriBasedDirective(ImportDirective d) {}
-
-  visitPartDirective(PartDirective node) {
-    logger.warning('Not transforming code within ${node.uri}.');
-  }
-}