| // Copyright 2014 The Bazel Authors. All rights reserved. |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); |
| // you may not use this file except in compliance with the License. |
| // You may obtain a copy of the License at |
| // |
| // http://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, |
| // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| // See the License for the specific language governing permissions and |
| // limitations under the License. |
| |
| package com.google.devtools.build.lib.syntax; |
| |
| import java.io.IOException; |
| |
| /** Syntax node for an augmented assignment statement. */ |
| // TODO(adonovan): merge with AssignmentStatement. |
| public final class AugmentedAssignmentStatement extends Statement { |
| |
| private final Expression lhs; // same constraint as AssignmentStatement |
| private final TokenKind op; |
| private final Expression rhs; |
| |
| /** Constructs an augmented assignment. */ |
| AugmentedAssignmentStatement(TokenKind op, Expression lhs, Expression rhs) { |
| this.lhs = lhs; |
| this.op = op; |
| this.rhs = rhs; |
| } |
| |
| /** Returns the operator of the assignment. */ |
| public TokenKind getOperator() { |
| return op; |
| } |
| |
| /** Returns the LHS of the assignment. */ |
| public Expression getLHS() { |
| return lhs; |
| } |
| |
| /** Returns the RHS of the assignment. */ |
| public Expression getRHS() { |
| return rhs; |
| } |
| |
| @Override |
| public void prettyPrint(Appendable buffer, int indentLevel) throws IOException { |
| printIndent(buffer, indentLevel); |
| lhs.prettyPrint(buffer); |
| buffer.append(' '); |
| buffer.append(op.toString()); |
| buffer.append("= "); |
| rhs.prettyPrint(buffer); |
| buffer.append('\n'); |
| } |
| |
| @Override |
| public void accept(SyntaxTreeVisitor visitor) { |
| visitor.visit(this); |
| } |
| |
| @Override |
| public Kind kind() { |
| return Kind.AUGMENTED_ASSIGNMENT; |
| } |
| } |