blob: 42584436425fc40dcccc23ed8fd03edefc79fdf8 [file] [log] [blame]
// Copyright (c) 2019, 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/dart/element/type.dart';
/// Provider of types for local variables and formal parameters.
abstract class LocalVariableTypeProvider {
/// Given that the [node] is a reference to a local variable, or a parameter,
/// return the type of the variable at the node - declared or promoted.
DartType getType(SimpleIdentifier node, {required bool isRead});
/// Implementation of [LocalVariableTypeProvider] that does not promote, for use
/// in situations where no flow analysis is being done. This happens in some
/// analyzer internal unit tests.
class NonPromotingLocalVariableTypeProvider
implements LocalVariableTypeProvider {
const NonPromotingLocalVariableTypeProvider();
DartType getType(SimpleIdentifier node, {required bool isRead}) =>
(node.staticElement as VariableElement).type;