Parse FunctionDeclarationStatement(s) with Fasta.

pkg/analyzer/test/generated/parser_test.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 analyzer.test.generated.parser_test;
 
 import 'package:analyzer/dart/ast/ast.dart';
 import 'package:analyzer/dart/ast/standard_ast_factory.dart';
 import 'package:analyzer/dart/ast/token.dart';
 import 'package:analyzer/dart/ast/visitor.dart';
@@ skipping 1074 matching lines @@
     expect(constructor.parameters.parameters, isEmpty);
     expect(constructor.separator.type, TokenType.EQ);
     expect(constructor.initializers, isEmpty);
     expect(constructor.redirectedConstructor, isNotNull);
     expect(constructor.redirectedConstructor.type.name.name, 'B');
     expect(constructor.redirectedConstructor.period, isNull);
     expect(constructor.redirectedConstructor.name, isNull);
     expect(constructor.body, new isInstanceOf<EmptyFunctionBody>());
   }
 
+  void test_parseConstructor_assert() {
+    enableAssertInitializer = true;
+    createParser('C(x, y) : _x = x, assert (x < y), _y = y;');
+    ClassMember member = parser.parseClassMember('C');
+    expect(member, isNotNull);
+    assertNoErrors();
+    expect(member, new isInstanceOf<ConstructorDeclaration>());
+    ConstructorDeclaration constructor = member as ConstructorDeclaration;
+    NodeList<ConstructorInitializer> initializers = constructor.initializers;
+    expect(initializers, hasLength(3));
+    ConstructorInitializer initializer = initializers[1];
+    expect(initializer, new isInstanceOf<AssertInitializer>());
+    AssertInitializer assertInitializer = initializer;
+    expect(assertInitializer.condition, isNotNull);
+    expect(assertInitializer.message, isNull);
+  }
+
   void test_parseConstructor_initializers_field() {
     createParser('C(x, y) : _x = x, this._y = y;');
     ClassMember member = parser.parseClassMember('C');
     expect(member, isNotNull);
     assertNoErrors();
     expect(member, new isInstanceOf<ConstructorDeclaration>());
     ConstructorDeclaration constructor = member as ConstructorDeclaration;
     NodeList<ConstructorInitializer> initializers = constructor.initializers;
     expect(initializers, hasLength(2));
 
     {
       var initializer = initializers[0] as ConstructorFieldInitializer;
       expect(initializer.thisKeyword, isNull);
       expect(initializer.period, isNull);
       expect(initializer.fieldName.name, '_x');
       expect(initializer.expression, isNotNull);
     }
 
     {
       var initializer = initializers[1] as ConstructorFieldInitializer;
       expect(initializer.thisKeyword, isNotNull);
       expect(initializer.period, isNotNull);
       expect(initializer.fieldName.name, '_y');
       expect(initializer.expression, isNotNull);
     }
   }
 
-  void test_parseConstructor_assert() {
-    enableAssertInitializer = true;
-    createParser('C(x, y) : _x = x, assert (x < y), _y = y;');
-    ClassMember member = parser.parseClassMember('C');
-    expect(member, isNotNull);
-    assertNoErrors();
-    expect(member, new isInstanceOf<ConstructorDeclaration>());
-    ConstructorDeclaration constructor = member as ConstructorDeclaration;
-    NodeList<ConstructorInitializer> initializers = constructor.initializers;
-    expect(initializers, hasLength(3));
-    ConstructorInitializer initializer = initializers[1];
-    expect(initializer, new isInstanceOf<AssertInitializer>());
-    AssertInitializer assertInitializer = initializer;
-    expect(assertInitializer.condition, isNotNull);
-    expect(assertInitializer.message, isNull);
-  }
-
   void test_parseConstructor_named() {
     createParser('C.foo();');
     var constructor = parser.parseClassMember('C') as ConstructorDeclaration;
     assertNoErrors();
     expect(constructor, isNotNull);
     expect(constructor.externalKeyword, isNull);
     expect(constructor.constKeyword, isNull);
     expect(constructor.factoryKeyword, isNull);
     expect(constructor.returnType.name, 'C');
     _assertIsDeclarationName(constructor.returnType, false);
@@ skipping 3006 matching lines @@
     listener.assertErrorsWithCodes(
         [ParserErrorCode.WRONG_TERMINATOR_FOR_PARAMETER_GROUP]);
   }
 }
 
 @reflectiveTest
 class ExpressionParserTest extends ParserTestCase
     with ExpressionParserTestMixin {}
 
 abstract class ExpressionParserTestMixin implements AbstractParserTestCase {
+  void test_namedArgument() {
+    var invocation = parseExpression('m(a: 1, b: 2)') as MethodInvocation;
+    List<Expression> arguments = invocation.argumentList.arguments;
+
+    var a = arguments[0] as NamedExpression;
+    expect(a.name.label.name, 'a');
+    expect(a.expression, isNotNull);
+
+    var b = arguments[1] as NamedExpression;
+    expect(b.name.label.name, 'b');
+    expect(b.expression, isNotNull);
+  }
+
   void test_parseAdditiveExpression_normal() {
     Expression expression = parseAdditiveExpression('x + y');
     expect(expression, isNotNull);
     assertNoErrors();
     var binaryExpression = expression as BinaryExpression;
     expect(binaryExpression.leftOperand, isNotNull);
     expect(binaryExpression.operator, isNotNull);
     expect(binaryExpression.operator.type, TokenType.PLUS);
     expect(binaryExpression.rightOperand, isNotNull);
   }
@@ skipping 1437 matching lines @@
     expect(expression, isNotNull);
     assertNoErrors();
     var methodInvocation = expression as MethodInvocation;
     expect(methodInvocation.target, isNotNull);
     expect(methodInvocation.operator.type, TokenType.PERIOD);
     expect(methodInvocation.methodName, isNotNull);
     expect(methodInvocation.typeArguments, isNull);
     expect(methodInvocation.argumentList, isNotNull);
   }
 
-  void test_namedArgument() {
-    var invocation = parseExpression('m(a: 1, b: 2)') as MethodInvocation;
-    List<Expression> arguments = invocation.argumentList.arguments;
-
-    var a = arguments[0] as NamedExpression;
-    expect(a.name.label.name, 'a');
-    expect(a.expression, isNotNull);
-
-    var b = arguments[1] as NamedExpression;
-    expect(b.name.label.name, 'b');
-    expect(b.expression, isNotNull);
-  }
-
   void test_parsePostfixExpression_none_methodInvocation_question_dot() {
     Expression expression = parsePostfixExpression('a?.m()');
     expect(expression, isNotNull);
     assertNoErrors();
     var methodInvocation = expression as MethodInvocation;
     expect(methodInvocation.target, isNotNull);
     expect(methodInvocation.operator.type, TokenType.QUESTION_PERIOD);
     expect(methodInvocation.methodName, isNotNull);
     expect(methodInvocation.typeArguments, isNull);
     expect(methodInvocation.argumentList, isNotNull);
@@ skipping 5449 matching lines @@
 
   void test_parseFunctionBody_skip_expression() {
     ParserTestCase.parseFunctionBodies = false;
     createParser('=> y;');
     FunctionBody functionBody = parser.parseFunctionBody(false, null, false);
     expectNotNullIfNoErrors(functionBody);
     listener.assertNoErrors();
     expect(functionBody, new isInstanceOf<EmptyFunctionBody>());
   }
 
-  void test_parseFunctionDeclarationStatement() {
-    createParser('void f(int p) => p * 2;');
-    FunctionDeclarationStatement statement =
-        parser.parseFunctionDeclarationStatement();
-    expectNotNullIfNoErrors(statement);
-    listener.assertNoErrors();
-    expect(statement.functionDeclaration, isNotNull);
-  }
-
-  void test_parseFunctionDeclarationStatement_typeParameterComments() {
-    enableGenericMethodComments = true;
-    createParser('/*=E*/ f/*<E>*/(/*=E*/ p) => p * 2;');
-    FunctionDeclarationStatement statement =
-        parser.parseFunctionDeclarationStatement();
-    expectNotNullIfNoErrors(statement);
-    listener.assertNoErrors();
-    FunctionDeclaration f = statement.functionDeclaration;
-    expect(f, isNotNull);
-    expect(f.functionExpression.typeParameters, isNotNull);
-    expect(f.returnType, isNotNull);
-    SimpleFormalParameter p = f.functionExpression.parameters.parameters[0];
-    expect(p.type, isNotNull);
-  }
-
-  void test_parseFunctionDeclarationStatement_typeParameters() {
-    createParser('E f<E>(E p) => p * 2;');
-    FunctionDeclarationStatement statement =
-        parser.parseFunctionDeclarationStatement();
-    expectNotNullIfNoErrors(statement);
-    listener.assertNoErrors();
-    expect(statement.functionDeclaration, isNotNull);
-    expect(statement.functionDeclaration.functionExpression.typeParameters,
-        isNotNull);
-  }
-
-  void test_parseFunctionDeclarationStatement_typeParameters_noReturnType() {
-    createParser('f<E>(E p) => p * 2;');
-    FunctionDeclarationStatement statement =
-        parser.parseFunctionDeclarationStatement();
-    expectNotNullIfNoErrors(statement);
-    listener.assertNoErrors();
-    expect(statement.functionDeclaration, isNotNull);
-    expect(statement.functionDeclaration.functionExpression.typeParameters,
-        isNotNull);
-  }
-
   void test_parseIdentifierList_multiple() {
     createParser('a, b, c');
     List<SimpleIdentifier> list = parser.parseIdentifierList();
     expectNotNullIfNoErrors(list);
     listener.assertNoErrors();
     expect(list, hasLength(3));
   }
 
   void test_parseIdentifierList_single() {
     createParser('a');
@@ skipping 1349 matching lines @@
     expect(forStatement.variables, isNull);
     expect(forStatement.initialization, isNull);
     expect(forStatement.leftSeparator, isNotNull);
     expect(forStatement.condition, isNull);
     expect(forStatement.rightSeparator, isNotNull);
     expect(forStatement.updaters, hasLength(1));
     expect(forStatement.rightParenthesis, isNotNull);
     expect(forStatement.body, isNotNull);
   }
 
+  void test_parseFunctionDeclarationStatement() {
+    var statement = parseStatement('void f(int p) => p * 2;')
+        as FunctionDeclarationStatement;
+    assertNoErrors();
+    expect(statement.functionDeclaration, isNotNull);
+  }
+
+  void test_parseFunctionDeclarationStatement_typeParameterComments() {
+    enableGenericMethodComments = true;
+    var statement = parseStatement('/*=E*/ f/*<E>*/(/*=E*/ p) => p * 2;')
+        as FunctionDeclarationStatement;
+    assertNoErrors();
+    FunctionDeclaration f = statement.functionDeclaration;
+    expect(f, isNotNull);
+    expect(f.functionExpression.typeParameters, isNotNull);
+    expect(f.returnType, isNotNull);
+    SimpleFormalParameter p = f.functionExpression.parameters.parameters[0];
+    expect(p.type, isNotNull);
+  }
+
+  void test_parseFunctionDeclarationStatement_typeParameters() {
+    var statement =
+        parseStatement('E f<E>(E p) => p * 2;') as FunctionDeclarationStatement;
+    assertNoErrors();
+    expect(statement.functionDeclaration, isNotNull);
+    expect(statement.functionDeclaration.functionExpression.typeParameters,
+        isNotNull);
+  }
+
+  void test_parseFunctionDeclarationStatement_typeParameters_noReturnType() {
+    var statement =
+        parseStatement('f<E>(E p) => p * 2;') as FunctionDeclarationStatement;
+    assertNoErrors();
+    expect(statement.functionDeclaration, isNotNull);
+    expect(statement.functionDeclaration.functionExpression.typeParameters,
+        isNotNull);
+  }
+
   void test_parseIfStatement_else_block() {
     var statement = parseStatement('if (x) {} else {}') as IfStatement;
     assertNoErrors();
     expect(statement.ifKeyword, isNotNull);
     expect(statement.leftParenthesis, isNotNull);
     expect(statement.condition, isNotNull);
     expect(statement.rightParenthesis, isNotNull);
     expect(statement.thenStatement, isNotNull);
     expect(statement.elseKeyword, isNotNull);
     expect(statement.elseStatement, isNotNull);
@@ skipping 2251 matching lines @@
     expectCommentText(typeVariable.documentationComment, '/// Doc');
   }
 
   /**
    * Assert that the given [name] is in declaration context.
    */
   void _assertIsDeclarationName(SimpleIdentifier name) {
     expect(name.inDeclarationContext(), isTrue);
   }
 }