pkg/front_end/test/text_representation/empty_reference_test.dart

// Copyright (c) 2020, 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:expect/expect.dart';
import 'package:kernel/ast.dart';

import 'text_representation_test.dart';

void testExpression(
  Expression node,
  String normal, {
  String? verbose,
  String? limited,
}) {
  Expect.stringEquals(
    normal,
    node.toText(normalStrategy),
    "Unexpected normal strategy text for ${node.runtimeType}",
  );
  Expect.stringEquals(
    verbose ?? normal,
    node.toText(verboseStrategy),
    "Unexpected verbose strategy text for ${node.runtimeType}",
  );
  Expect.stringEquals(
    limited ?? normal,
    node.toText(limitedStrategy),
    "Unexpected limited strategy text for ${node.runtimeType}",
  );
}

void testType(
  DartType node,
  String normal, {
  String? verbose,
  String? limited,
}) {
  Expect.stringEquals(
    normal,
    node.toText(normalStrategy),
    "Unexpected normal strategy text for ${node.runtimeType}",
  );
  Expect.stringEquals(
    verbose ?? normal,
    node.toText(verboseStrategy),
    "Unexpected verbose strategy text for ${node.runtimeType}",
  );
  Expect.stringEquals(
    limited ?? normal,
    node.toText(limitedStrategy),
    "Unexpected limited strategy text for ${node.runtimeType}",
  );
}

void main() {
  testTypes();
  testMembers();
}

void testTypes() {
  Reference unlinkedClassName = new Reference();
  testType(
    new InterfaceType.byReference(
      unlinkedClassName,
      Nullability.nonNullable,
      [],
    ),
    '<unlinked-class-reference>',
  );
  testType(
    new TypedefType.byReference(unlinkedClassName, Nullability.nonNullable, []),
    '<unlinked-typedef-reference>',
  );

  CanonicalName root = new CanonicalName.root();
  Reference rootReference = new Reference()..canonicalName = root;
  testType(
    new InterfaceType.byReference(rootReference, Nullability.nonNullable, []),
    '<root>',
  );
  testType(
    new TypedefType.byReference(rootReference, Nullability.nonNullable, []),
    '<root>',
  );

  CanonicalName library = root.getChild('lib');
  Reference libraryReference = new Reference()..canonicalName = library;
  testType(
    new InterfaceType.byReference(
      libraryReference,
      Nullability.nonNullable,
      [],
    ),
    'library lib',
  );
  testType(
    new TypedefType.byReference(libraryReference, Nullability.nonNullable, []),
    'library lib',
  );

  CanonicalName className = library.getChild('Class');
  Reference classNameReference = new Reference()..canonicalName = className;
  testType(
    new InterfaceType.byReference(
      classNameReference,
      Nullability.nonNullable,
      [],
    ),
    'Class',
    verbose: 'library lib::Class',
  );
  testType(
    new TypedefType.byReference(
      classNameReference,
      Nullability.nonNullable,
      [],
    ),
    'Class',
    verbose: 'library lib::Class',
  );
}

void testMembers() {
  Reference unlinkedMemberName = new Reference();
  testExpression(
    new InstanceGet.byReference(
      InstanceAccessKind.Instance,
      new IntLiteral(0),
      new Name('foo'),
      interfaceTargetReference: unlinkedMemberName,
      resultType: const DynamicType(),
    ),
    '''
0.foo''',
  );
  testExpression(new StaticGet.byReference(unlinkedMemberName), '''
<unlinked-member-reference>''');

  CanonicalName root = new CanonicalName.root();
  Reference rootReference = new Reference()..canonicalName = root;
  testExpression(
    new InstanceGet.byReference(
      InstanceAccessKind.Instance,
      new IntLiteral(0),
      new Name('foo'),
      interfaceTargetReference: rootReference,
      resultType: const DynamicType(),
    ),
    '''
0.foo''',
  );
  testExpression(new StaticGet.byReference(rootReference), '''
<root>''');

  CanonicalName library = root.getChild('lib');
  Reference libraryReference = new Reference()..canonicalName = library;
  testExpression(
    new InstanceGet.byReference(
      InstanceAccessKind.Instance,
      new IntLiteral(0),
      new Name('foo'),
      interfaceTargetReference: libraryReference,
      resultType: const DynamicType(),
    ),
    '''
0.foo''',
  );
  testExpression(new StaticGet.byReference(libraryReference), '''
library lib''');

  CanonicalName topLevelMemberName = library
      .getChild(CanonicalName.methodsName)
      .getChild('member');
  Reference topLevelMemberNameReference = new Reference()
    ..canonicalName = topLevelMemberName;
  testExpression(
    new InstanceGet.byReference(
      InstanceAccessKind.Instance,
      new IntLiteral(0),
      new Name('foo'),
      interfaceTargetReference: topLevelMemberNameReference,
      resultType: const DynamicType(),
    ),
    '''
0.foo''',
  );
  testExpression(
    new StaticGet.byReference(topLevelMemberNameReference),
    '''
member''',
    verbose: '''
library lib::member''',
  );

  CanonicalName className = library.getChild('Class');
  Reference classNameReference = new Reference()..canonicalName = className;
  testExpression(
    new InstanceGet.byReference(
      InstanceAccessKind.Instance,
      new IntLiteral(0),
      new Name('foo'),
      interfaceTargetReference: classNameReference,
      resultType: const DynamicType(),
    ),
    '''
0.foo''',
  );
  testExpression(
    new StaticGet.byReference(classNameReference),
    '''
Class''',
    verbose: '''
library lib::Class''',
  );

  CanonicalName classMemberName = className
      .getChild(CanonicalName.methodsName)
      .getChild('member');
  Reference classMemberNameReference = new Reference()
    ..canonicalName = classMemberName;
  testExpression(
    new InstanceGet.byReference(
      InstanceAccessKind.Instance,
      new IntLiteral(0),
      new Name('foo'),
      interfaceTargetReference: classMemberNameReference,
      resultType: const DynamicType(),
    ),
    '''
0.foo''',
  );
  testExpression(
    new StaticGet.byReference(classMemberNameReference),
    '''
Class.member''',
    verbose: '''
library lib::Class.member''',
  );
}