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/*
* reserved comment block
* DO NOT REMOVE OR ALTER!
*/
/*
* Copyright 2001-2004 The Apache Software Foundation.
*
* 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.
*/
/*
* $Id: MethodGenerator.java,v 1.10 2010-11-01 04:34:19 joehw Exp $
*/
package com.sun.org.apache.xalan.internal.xsltc.compiler.util;
import com.sun.org.apache.bcel.internal.generic.Instruction;
/**
* <p>This pseudo-instruction marks the beginning of a region of byte code that
* can be copied into a new method, termed an "outlineable" chunk. The size of
* the Java stack must be the same at the start of the region as it is at the
* end of the region, any value on the stack at the start of the region must not
* be consumed by an instruction in the region of code, the region must not
* contain a return instruction, no branch instruction in the region is
* permitted to have a target that is outside the region, and no branch
* instruction outside the region is permitted to have a target that is inside
* the region.</p>
* <p>The end of the region is marked by an {@link OutlineableChunkEnd}
* pseudo-instruction.</p>
* <p>Such a region of code may contain other outlineable regions.</p>
*/
class OutlineableChunkStart extends MarkerInstruction {
/**
* A constant instance of {@link OutlineableChunkStart}. As it has no fields,
* there should be no need to create an instance of this class.
*/
public static final Instruction OUTLINEABLECHUNKSTART =
new OutlineableChunkStart();
/**
* Private default constructor. As it has no fields,
* there should be no need to create an instance of this class. See
* {@link OutlineableChunkStart#OUTLINEABLECHUNKSTART}.
*/
private OutlineableChunkStart() {
}
/**
* Get the name of this instruction. Used for debugging.
* @return the instruction name
*/
public String getName() {
return OutlineableChunkStart.class.getName();
}
/**
* Get the name of this instruction. Used for debugging.
* @return the instruction name
*/
public String toString() {
return getName();
}
/**
* Get the name of this instruction. Used for debugging.
* @return the instruction name
*/
public String toString(boolean verbose) {
return getName();
}
}
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