Begin hooking up Fasta to analyzer parser tests.

pkg/analyzer/test/generated/parser_test_fasta.dart

+// Copyright (c) 2017, 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.
+
+import 'package:analyzer/dart/ast/ast.dart';
+import 'package:analyzer/dart/element/element.dart';
+import 'package:analyzer/error/error.dart';
+import 'package:front_end/src/fasta/analyzer/ast_builder.dart';
+import 'package:front_end/src/fasta/analyzer/element_store.dart';
+import 'package:front_end/src/fasta/builder/scope.dart';
+import 'package:front_end/src/fasta/kernel/kernel_builder.dart';
+import 'package:front_end/src/fasta/kernel/kernel_library_builder.dart';
+import 'package:front_end/src/fasta/parser/parser.dart';
+import 'package:front_end/src/fasta/scanner/string_scanner.dart';
+import 'package:test/test.dart';
+import 'package:test_reflective_loader/test_reflective_loader.dart';
+
+import 'parser_test.dart';
+
+main() {
+  defineReflectiveSuite(() {
+    defineReflectiveTests(ComplexParserTest_Fasta);
+  });
+}
+
+/**
+ * Proxy implementation of [Builder] used by Fasta parser tests.
+ *
+ * All undeclared identifiers are presumed to resolve via an instance of this
+ * class.
+ */
+class BuilderProxy implements Builder {

[ahe, 2017/02/07 09:47:16]

Do you need to use @proxy?

[Paul Berry, 2017/02/07 13:45:13]

No.  "@proxy" is appropriate when the class's implementation of noSuchMethod is
able to handle the method invocation.  In this case, we are choosing not to
implement some members of the Builder class because we know that at runtime they
won't be called.

Adding "@proxy" would actually be counterproductive because it would suppress
"no such method" warnings in cases where the target of the method invocation is
known to be a BuilderProxy rather than simply a Builder; should a case like that
arise, we would need to implement the corresponding method, so the warning would
be useful.

+  noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
+}
+
+/**
+ * Tests of the fasta parser based on [ComplexParserTestMixin].
+ */
+@reflectiveTest
+class ComplexParserTest_Fasta extends FastaParserTestCase
+    with ComplexParserTestMixin {
+  @override
+  @failingTest
+  void test_additiveExpression_precedence_multiplicative_left_withSuper() {
+    // TODO(paulberry,ahe): AstBuilder doesn't implement
+    // handleSuperExpression().
+    super.test_additiveExpression_precedence_multiplicative_left_withSuper();
+  }
+
+  @override
+  @failingTest
+  void test_additiveExpression_super() {
+    // TODO(paulberry,ahe): AstBuilder doesn't implement
+    // handleSuperExpression().
+    super.test_additiveExpression_super();
+  }
+
+  @override
+  @failingTest
+  void test_assignableExpression_arguments_normal_chain() {
+    // TODO(paulberry,ahe): AstBuilder.doInvocation doesn't handle receiver
+    // other than SimpleIdentifier.
+    super.test_assignableExpression_arguments_normal_chain();
+  }
+
+  @override
+  @failingTest
+  void test_assignableExpression_arguments_normal_chain_typeArgumentComments() {
+    // TODO(paulberry,ahe): Fasta doesn't support generic method comment syntax.
+    super
+        .test_assignableExpression_arguments_normal_chain_typeArgumentComments();

[ahe, 2017/02/07 09:47:16]

Long line.

[Paul Berry, 2017/02/07 13:45:13]

Acknowledged.

+  }
+
+  @override
+  @failingTest
+  void test_assignableExpression_arguments_normal_chain_typeArguments() {
+    // TODO(paulberry,ahe): AstBuilder doesn't implement
+    // endTypeArguments().
+    super.test_assignableExpression_arguments_normal_chain_typeArguments();
+  }
+
+  @override
+  @failingTest
+  void test_assignmentExpression_prefixedIdentifier() {
+    // TODO(paulberry,ahe): Analyzer expects "x.y" to be parsed as a
+    // PrefixedIdentifier, even if x is not a prefix.
+    super.test_assignmentExpression_prefixedIdentifier();
+  }
+
+  @override
+  @failingTest
+  void test_assignmentExpression_propertyAccess() {
+    // TODO(paulberry,ahe): AstBuilder doesn't implement
+    // handleSuperExpression().
+    super.test_assignmentExpression_propertyAccess();
+  }
+
+  @override
+  @failingTest
+  void test_bitwiseAndExpression_super() {
+    // TODO(paulberry,ahe): AstBuilder doesn't implement
+    // handleSuperExpression().
+    super.test_bitwiseAndExpression_super();
+  }
+
+  @override
+  @failingTest
+  void test_bitwiseOrExpression_super() {
+    // TODO(paulberry,ahe): AstBuilder doesn't implement
+    // handleSuperExpression().
+    super.test_bitwiseOrExpression_super();
+  }
+
+  @override
+  @failingTest
+  void test_bitwiseXorExpression_super() {
+    // TODO(paulberry,ahe): AstBuilder doesn't implement
+    // handleSuperExpression().
+    super.test_bitwiseXorExpression_super();
+  }
+
+  @override
+  @failingTest
+  void test_cascade_withAssignment() {
+    // TODO(paulberry,ahe): AstBuilder doesn't implement
+    // endConstructorReference().
+    super.test_cascade_withAssignment();
+  }
+
+  @override
+  @failingTest
+  void test_conditionalExpression_precedence_nullableType_as() {
+    // TODO(paulberry,ahe): Fasta doesn't support NNBD syntax yet.
+    super.test_conditionalExpression_precedence_nullableType_as();
+  }
+
+  @override
+  @failingTest
+  void test_conditionalExpression_precedence_nullableType_is() {
+    // TODO(paulberry,ahe): Fasta doesn't support NNBD syntax yet.
+    super.test_conditionalExpression_precedence_nullableType_is();
+  }
+
+  @override
+  @failingTest
+  void test_equalityExpression_normal() {
+    // TODO(paulberry,ahe): bad error recovery
+    super.test_equalityExpression_normal();
+  }
+
+  @override
+  @failingTest
+  void test_equalityExpression_super() {
+    // TODO(paulberry,ahe): AstBuilder doesn't implement
+    // handleSuperExpression().
+    super.test_equalityExpression_super();
+  }
+
+  @override
+  @failingTest
+  void test_logicalAndExpression_precedence_nullableType() {
+    // TODO(paulberry,ahe): Fasta doesn't support NNBD syntax yet.
+    super.test_logicalAndExpression_precedence_nullableType();
+  }
+
+  @override
+  @failingTest
+  void test_logicalOrExpression_precedence_nullableType() {
+    // TODO(paulberry,ahe): Fasta doesn't support NNBD syntax yet.
+    super.test_logicalOrExpression_precedence_nullableType();
+  }
+
+  @override
+  @failingTest
+  void test_multiplicativeExpression_super() {
+    // TODO(paulberry,ahe): AstBuilder doesn't implement
+    // handleSuperExpression().
+    super.test_multiplicativeExpression_super();
+  }
+
+  @override
+  @failingTest
+  void test_shiftExpression_super() {
+    // TODO(paulberry,ahe): AstBuilder doesn't implement
+    // handleSuperExpression().
+    super.test_shiftExpression_super();
+  }
+
+  @override
+  @failingTest
+  void test_topLevelFunction_nestedGenericFunction() {
+    // TODO(paulberry): Implement parseCompilationUnitWithOptions
+    super.test_topLevelFunction_nestedGenericFunction();
+  }
+}
+
+/**
+ * Proxy implementation of [KernelClassElement] used by Fasta parser tests.
+ *
+ * All undeclared identifiers are presumed to resolve to an instance of this
+ * class.
+ */
+class ElementProxy implements KernelClassElement {
+  @override
+  final KernelInterfaceType rawType = new InterfaceTypeProxy();
+
+  noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
+}
+
+/**
+ * Proxy implementation of [KernelClassElement] used by Fasta parser tests.
+ *
+ * Any request for an element is satisfied by creating an instance of
+ * [ElementProxy].
+ */
+class ElementStoreProxy implements ElementStore {
+  final _elements = <Builder, Element>{};
+
+  @override
+  Element operator [](Builder builder) =>
+      _elements.putIfAbsent(builder, () => new ElementProxy());
+
+  noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
+}
+
+/**
+ * Implementation of [AbstractParserTestCase] specialized for testing the
+ * Fasta parser.
+ */
+class FastaParserTestCase implements AbstractParserTestCase {
+  @override
+  set enableGenericMethodComments(bool value) {
+    if (value == true) {
+      // TODO(paulberry,ahe): generic method comment syntax is not supported by
+      // Fasta.
+      throw new UnimplementedError();
+    }
+  }
+
+  @override
+  set enableNnbd(bool value) {
+    if (value == true) {
+      // TODO(paulberry,ahe): non-null-by-default syntax is not supported by
+      // Fasta.
+      throw new UnimplementedError();
+    }
+  }
+
+  @override
+  CompilationUnit parseCompilationUnitWithOptions(String source,
+      [List<ErrorCode> errorCodes = const <ErrorCode>[]]) {
+    // TODO(paulberry): implement parseCompilationUnitWithOptions
+    throw new UnimplementedError();
+  }
+
+  @override
+  Expression parseExpression(String source,
+      [List<ErrorCode> errorCodes = const <ErrorCode>[]]) {
+    var scanner = new StringScanner(source);
+    var token = scanner.tokenize();
+    var library = new KernelLibraryBuilderProxy();
+    var member = new BuilderProxy();
+    var elementStore = new ElementStoreProxy();
+    var scope = new ScopeProxy();
+    var astBuilder = new AstBuilder(library, member, elementStore, scope);
+    var parser = new Parser(astBuilder);
+    var endToken = parser.parseExpression(token);
+    expect(endToken.isEof, isTrue);
+    expect(astBuilder.stack, hasLength(1));
+    var expression = astBuilder.pop() as Expression;
+    return expression;
+  }
+}
+
+/**
+ * Proxy implementation of [KernelClassElement] used by Fasta parser tests.
+ *
+ * Any element used as a type name is presumed to refer to an instance of this
+ * class.
+ */
+class InterfaceTypeProxy implements KernelInterfaceType {
+  noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
+}
+
+/**
+ * Proxy implementation of [KernelLibraryBuilderProxy] used by Fasta parser
+ * tests.
+ */
+class KernelLibraryBuilderProxy implements KernelLibraryBuilder {
+  @override
+  final uri = Uri.parse('file:///test.dart');
+
+  noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
+}
+
+/**
+ * Proxy implementation of [Scope] used by Fasta parser tests.
+ *
+ * Any name lookup request is satisfied by creating an instance of
+ * [BuilderProxy].
+ */
+class ScopeProxy implements Scope {
+  final _locals = <String, Builder>{};
+
+  Builder lookup(String name) =>
+      _locals.putIfAbsent(name, () => new BuilderProxy());
+
+  noSuchMethod(Invocation invocation) => super.noSuchMethod(invocation);
+}