| // Copyright (c) 2018, 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/ast/token.dart'; |
| import 'package:analyzer/dart/ast/visitor.dart'; |
| |
| /// Visitor that collects super-invoked names in a mixin declaration. |
| class MixinSuperInvokedNamesCollector extends RecursiveAstVisitor<void> { |
| final Set<String> _names; |
| |
| MixinSuperInvokedNamesCollector(this._names); |
| |
| @override |
| void visitBinaryExpression(BinaryExpression node) { |
| if (node.leftOperand is SuperExpression) { |
| _names.add(node.operator.lexeme); |
| } |
| super.visitBinaryExpression(node); |
| } |
| |
| @override |
| void visitIndexExpression(IndexExpression node) { |
| if (node.target is SuperExpression) { |
| if (node.inGetterContext()) { |
| _names.add('[]'); |
| } |
| if (node.inSetterContext()) { |
| _names.add('[]='); |
| } |
| } |
| super.visitIndexExpression(node); |
| } |
| |
| @override |
| void visitMethodInvocation(MethodInvocation node) { |
| if (node.target is SuperExpression) { |
| _names.add(node.methodName.name); |
| } |
| super.visitMethodInvocation(node); |
| } |
| |
| @override |
| void visitPrefixExpression(PrefixExpression node) { |
| if (node.operand is SuperExpression) { |
| TokenType operatorType = node.operator.type; |
| if (operatorType == TokenType.MINUS) { |
| _names.add('unary-'); |
| } else if (operatorType == TokenType.TILDE) { |
| _names.add('~'); |
| } |
| } |
| super.visitPrefixExpression(node); |
| } |
| |
| @override |
| void visitPropertyAccess(PropertyAccess node) { |
| if (node.target is SuperExpression) { |
| var name = node.propertyName.name; |
| if (node.propertyName.inGetterContext()) { |
| _names.add(name); |
| } |
| if (node.propertyName.inSetterContext()) { |
| _names.add('$name='); |
| } |
| } |
| super.visitPropertyAccess(node); |
| } |
| } |