| /* |
| * Copyright 2003-2007 the original author or authors. |
| * |
| * 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 org.codehaus.groovy.ast.expr; |
| |
| import groovy.lang.Closure; |
| |
| import org.codehaus.groovy.ast.ClassHelper; |
| import org.codehaus.groovy.ast.ClassNode; |
| import org.codehaus.groovy.ast.GroovyCodeVisitor; |
| |
| /** |
| * Represents a method pointer on an object such as |
| * foo.&bar which means find the method pointer on foo for the method called "bar" |
| * which is equivalent to |
| * <code> |
| * foo.metaClass.getMethodPointer(foo, "bar") |
| * |
| * @version $Revision$ |
| */ |
| public class MethodPointerExpression extends Expression { |
| |
| private Expression expression; |
| private Expression methodName; |
| |
| public MethodPointerExpression(Expression expression, Expression methodName) { |
| this.expression = expression; |
| this.methodName = methodName; |
| } |
| |
| public Expression getExpression() { |
| if (expression == null) |
| return VariableExpression.THIS_EXPRESSION; |
| else |
| return expression; |
| } |
| |
| public Expression getMethodName() { |
| return methodName; |
| } |
| |
| public void visit(GroovyCodeVisitor visitor) { |
| visitor.visitMethodPointerExpression(this); |
| } |
| |
| public Expression transformExpression(ExpressionTransformer transformer) { |
| Expression ret; |
| Expression mname = transformer.transform(methodName); |
| if (expression == null) { |
| ret = new MethodPointerExpression(VariableExpression.THIS_EXPRESSION, mname); |
| } else { |
| ret = new MethodPointerExpression(transformer.transform(expression), mname); |
| } |
| ret.setSourcePosition(this); |
| return ret; |
| } |
| |
| public String getText() { |
| if (expression == null) { |
| return "&" + methodName; |
| } else { |
| return expression.getText() + ".&" + methodName.getText(); |
| } |
| } |
| |
| public ClassNode getType() { |
| return ClassHelper.CLOSURE_TYPE; |
| } |
| |
| public boolean isDynamic() { |
| return false; |
| } |
| |
| public Class getTypeClass() { |
| return Closure.class; |
| } |
| } |