/* | |
* 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.classgen; | |
import java.util.Iterator; | |
import java.util.List; | |
import org.codehaus.groovy.ast.ASTNode; | |
import org.codehaus.groovy.ast.GroovyCodeVisitor; | |
import org.codehaus.groovy.ast.stmt.Statement; | |
/** | |
* This class repersents a sequence of BytecodeInstructions | |
* or ASTNodes. The evaluation is dpeending on the type of | |
* the visitor. | |
* | |
* @see BytecodeInstruction | |
* @see ASTNode | |
*/ | |
public class BytecodeSequence extends Statement { | |
private final List instructions; | |
public BytecodeSequence(List instructions) { | |
this.instructions = instructions; | |
} | |
/** | |
* Delegates to the visit method used for this class. | |
* If the visitor is a ClassGenerator, then | |
* {@link ClassGenerator#visitBytecodeSequence(BytecodeSequence)} | |
* is called with this instance. If the visitor is no | |
* ClassGenerator, then this method will call visit on | |
* each ASTNode element sotred by this class. If one | |
* element is a BytecodeInstruction, then it will be skipped | |
* as it is no ASTNode. | |
* | |
* @param visitor the visitor | |
* @see ClassGenerator | |
*/ | |
public void visit(GroovyCodeVisitor visitor) { | |
if (visitor instanceof ClassGenerator) { | |
ClassGenerator gen = (ClassGenerator) visitor; | |
gen.visitBytecodeSequence(this); | |
return; | |
} | |
for (Iterator iterator = instructions.iterator(); iterator.hasNext();) { | |
Object part = (Object) iterator.next(); | |
if (part instanceof ASTNode) { | |
((ASTNode)part).visit(visitor); | |
} | |
} | |
} | |
public List getInstructions() { | |
return instructions; | |
} | |
} |