| package org.apache.commons.ognl; |
| |
| /* |
| * Licensed to the Apache Software Foundation (ASF) under one |
| * or more contributor license agreements. See the NOTICE file |
| * distributed with this work for additional information |
| * regarding copyright ownership. The ASF licenses this file |
| * to you 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. |
| */ |
| |
| import org.apache.commons.ognl.enhance.OrderedReturn; |
| import org.apache.commons.ognl.enhance.UnsupportedCompilationException; |
| |
| /** |
| * $Id$ |
| */ |
| class ASTAssign |
| extends SimpleNode |
| { |
| public ASTAssign( int id ) |
| { |
| super( id ); |
| } |
| |
| public ASTAssign( OgnlParser p, int id ) |
| { |
| super( p, id ); |
| } |
| |
| protected Object getValueBody( OgnlContext context, Object source ) |
| throws OgnlException |
| { |
| Object result = children[1].getValue( context, source ); |
| children[0].setValue( context, source, result ); |
| return result; |
| } |
| |
| public String toGetSourceString( OgnlContext context, Object target ) |
| { |
| String result = ""; |
| |
| String first = children[0].toGetSourceString( context, target ); |
| String second = ""; |
| |
| if (children[1] instanceof ASTProperty) |
| { |
| second += "((" + OgnlRuntime.getCompiler( context ).getClassName( target.getClass() ) + ")$2)."; |
| } |
| |
| second += children[1].toGetSourceString( context, target ); |
| |
| if ( ASTSequence.class.isAssignableFrom( children[1].getClass() ) ) |
| { |
| ASTSequence seq = (ASTSequence) children[1]; |
| |
| context.setCurrentType( Object.class ); |
| |
| String core = seq.getCoreExpression(); |
| if ( core.endsWith( ";" ) ) |
| { |
| core = core.substring( 0, core.lastIndexOf( ";" ) ); |
| } |
| |
| second = |
| OgnlRuntime.getCompiler( context ).createLocalReference( context, |
| "org.apache.commons.ognl.OgnlOps.returnValue(($w)" |
| + core + ", ($w) " + seq.getLastExpression() + ")", |
| Object.class ); |
| } |
| |
| if ( children[1] instanceof NodeType && !(children[1] instanceof ASTProperty) |
| && ( (NodeType) children[1] ).getGetterClass() != null && !(children[1] instanceof OrderedReturn)) |
| { |
| |
| second = "new " + ( (NodeType) children[1] ).getGetterClass().getName() + "(" + second + ")"; |
| } |
| |
| if ( OrderedReturn.class.isAssignableFrom( children[0].getClass() ) |
| && ( (OrderedReturn) children[0] ).getCoreExpression() != null ) |
| { |
| context.setCurrentType( Object.class ); |
| |
| result = first + second + ")"; |
| |
| // System.out.println("building ordered ret from child[0] with result of:" + result); |
| |
| result = |
| OgnlRuntime |
| .getCompiler( context ) |
| .createLocalReference( context, |
| "org.apache.commons.ognl.OgnlOps.returnValue(($w)" + result + ", ($w)" |
| + ( (OrderedReturn) children[0] ).getLastExpression() + ")", |
| Object.class ); |
| } |
| |
| return result; |
| } |
| |
| public String toSetSourceString( OgnlContext context, Object target ) |
| { |
| String result = ""; |
| |
| result += children[0].toSetSourceString( context, target ); |
| |
| if (children[1] instanceof ASTProperty) |
| { |
| result += "((" + OgnlRuntime.getCompiler( context ).getClassName( target.getClass() ) + ")$2)."; |
| } |
| |
| String value = children[1].toSetSourceString( context, target ); |
| |
| if ( value == null ) |
| { |
| throw new UnsupportedCompilationException( |
| "Value for assignment is null, can't enhance statement to bytecode." ); |
| } |
| |
| if ( ASTSequence.class.isAssignableFrom( children[1].getClass() ) ) |
| { |
| ASTSequence seq = (ASTSequence) children[1]; |
| result = seq.getCoreExpression() + result; |
| value = seq.getLastExpression(); |
| } |
| |
| if ( children[1] instanceof NodeType && !(children[1] instanceof ASTProperty) |
| && ( (NodeType) children[1] ).getGetterClass() != null ) |
| { |
| |
| value = "new " + ( (NodeType) children[1] ).getGetterClass().getName() + "(" + value + ")"; |
| } |
| |
| return result + value + ")"; |
| } |
| |
| public <R, P> R accept( NodeVisitor<? extends R, ? super P> visitor, P data ) |
| throws OgnlException |
| { |
| return visitor.visit( this, data ); |
| } |
| } |