Parse FunctionDeclarationStatement(s) with Fasta.

pkg/analyzer/lib/src/fasta/ast_builder.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 fasta.analyzer.ast_builder;
 
 import 'package:analyzer/analyzer.dart';
 import 'package:analyzer/dart/ast/ast_factory.dart' show AstFactory;
 import 'package:analyzer/dart/ast/standard_ast_factory.dart' as standard;
 import 'package:analyzer/dart/ast/token.dart' as analyzer show Token;
@@ skipping 1399 matching lines @@
   }
 
   void endFieldInitializer(Token assignment) {
     debugEvent("FieldInitializer");
     Expression initializer = pop();
     SimpleIdentifier name = pop();
     push(ast.variableDeclaration(
         name, toAnalyzerToken(assignment), initializer));
   }
 
+  @override
+  void endFunction(Token getOrSet, Token endToken) {
+    debugEvent("Function");
+    FunctionBody body = pop();
+    pop(); // constructor initializers
+    FormalParameterList parameters = pop();
+    TypeParameterList typeParameters = pop();
+    // TODO(scheglov) It is an error if "getOrSet" is not null.
+    push(ast.functionExpression(typeParameters, parameters, body));
+  }
+
+  @override
+  void endFunctionDeclaration(Token token) {
+    debugEvent("FunctionDeclaration");
+    FunctionExpression functionExpression = pop();
+    SimpleIdentifier name = pop();
+    TypeAnnotation returnType = pop();
+    pop(); // modifiers
+    push(ast.functionDeclarationStatement(ast.functionDeclaration(
+        null, null, null, returnType, null, name, functionExpression)));
+  }
+
+  @override
+  void endFunctionName(Token beginToken, Token token) {
+    debugEvent("FunctionName");
+  }
+
   void endTopLevelFields(int count, Token beginToken, Token endToken) {
     debugEvent("TopLevelFields");
     List<VariableDeclaration> variables = popList(count);
     TypeAnnotation type = pop();
     _Modifiers modifiers = pop();
     Token keyword = modifiers?.finalConstOrVarKeyword;
     var variableList = ast.variableDeclarationList(
         null, null, toAnalyzerToken(keyword), type, variables);
     List<Annotation> metadata = pop();
     Comment comment = pop();
@@ skipping 385 matching lines @@
       } else if (identical('static', s)) {
         staticKeyword = token;
       } else if (identical('var', s)) {
         finalConstOrVarKeyword = token;
       } else {
         internalError('Unhandled modifier: $s');
       }
     }
   }
 }