Serialize and resynthesize labels.

pkg/analyzer/lib/src/summary/summarize_ast.dart

 // Copyright (c) 2016, 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 serialization.summarize_ast;
 
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/ast/token.dart';
 import 'package:analyzer/dart/ast/visitor.dart';
 import 'package:analyzer/src/generated/utilities_dart.dart';
@@ skipping 175 matching lines @@
    */
   List<UnlinkedExecutableBuilder> executables = <UnlinkedExecutableBuilder>[];
 
   /**
    * List of objects which should be written to [UnlinkedUnit.exports].
    */
   final List<UnlinkedExportNonPublicBuilder> exports =
       <UnlinkedExportNonPublicBuilder>[];
 
   /**
+   * List of objects which should be written to
+   * [UnlinkedExecutable.localLabels].
+   */
+  List<UnlinkedLabelBuilder> labels = <UnlinkedLabelBuilder>[];
+
+  /**
    * List of objects which should be written to [UnlinkedUnit.parts].
    */
   final List<UnlinkedPartBuilder> parts = <UnlinkedPartBuilder>[];
 
   /**
    * List of objects which should be written to [UnlinkedUnit.typedefs].
    */
   final List<UnlinkedTypedefBuilder> typedefs = <UnlinkedTypedefBuilder>[];
 
   /**
@@ skipping 338 matching lines @@
    * when we process a synthetic variable initializer function.
    */
   void serializeFunctionBody(UnlinkedExecutableBuilder b, AstNode body) {
     if (body is BlockFunctionBody || body is ExpressionFunctionBody) {
       for (UnlinkedParamBuilder parameter in b.parameters) {
         parameter.visibleOffset = body.offset;
         parameter.visibleLength = body.length;
       }
     }
     List<UnlinkedExecutableBuilder> oldExecutables = executables;
+    List<UnlinkedLabelBuilder> oldLabels = labels;
     List<UnlinkedVariableBuilder> oldVariables = variables;
     executables = <UnlinkedExecutableBuilder>[];
+    labels = <UnlinkedLabelBuilder>[];
     variables = <UnlinkedVariableBuilder>[];
     body.accept(this);
     b.localFunctions = executables;
+    b.localLabels = labels;
     b.localVariables = variables;
     executables = oldExecutables;
+    labels = oldLabels;
     variables = oldVariables;
   }
 
   /**
    * Serialize the return type and parameters of a function-typed formal
    * parameter and store them in [b].
    */
   void serializeFunctionTypedParameterDetails(UnlinkedParamBuilder b,
       TypeName returnType, FormalParameterList parameters) {
     EntityRefBuilder serializedReturnType = serializeTypeName(returnType);
@@ skipping 440 matching lines @@
       b.prefixOffset = node.prefix.offset;
     }
     b.isDeferred = node.deferredKeyword != null;
     b.uri = node.uri.stringValue;
     b.uriOffset = node.uri.offset;
     b.uriEnd = node.uri.end;
     unlinkedImports.add(b);
   }
 
   @override
+  void visitLabel(Label node) {
+    AstNode parent = node.parent;
+    labels.add(new UnlinkedLabelBuilder(
+        name: node.label.name,
+        nameOffset: node.offset,
+        isOnSwitchMember: parent is SwitchMember,
+        isOnSwitchStatement:
+            parent is LabeledStatement && parent.statement is SwitchStatement));
+  }
+
+  @override
   void visitLibraryDirective(LibraryDirective node) {
     libraryName =
         node.name.components.map((SimpleIdentifier id) => id.name).join('.');
     libraryNameOffset = node.name.offset;
     libraryNameLength = node.name.length;
     libraryDocumentationComment =
         serializeDocumentation(node.documentationComment);
     libraryAnnotations = serializeAnnotations(node.metadata);
   }
 
@@ skipping 68 matching lines @@
 /**
  * A [_TypeParameterScope] is a [_Scope] which defines [_ScopedTypeParameter]s.
  */
 class _TypeParameterScope extends _Scope {
   /**
    * Get the number of [_ScopedTypeParameter]s defined in this
    * [_TypeParameterScope].
    */
   int get length => _definedNames.length;
 }