src/java.xml/share/classes/com/sun/org/apache/bcel/internal/classfile/StackMapEntry.java - platform/libcore - Git at Google

 /*
  * reserved comment block
  * DO NOT REMOVE OR ALTER!
  */
 /*
  * 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.
  */

 package com.sun.org.apache.bcel.internal.classfile;

 import java.io.DataInput;
 import java.io.DataOutputStream;
 import java.io.IOException;
 import com.sun.org.apache.bcel.internal.Const;

 /**
  * This class represents a stack map entry recording the types of
  * local variables and the the of stack items at a given byte code offset.
  * See CLDC specification 5.3.1.2
  *
  * @see     StackMap
  * @see     StackMapType
  */
 public final class StackMapEntry implements Node, Cloneable
 {

     private int frame_type;
     private int byte_code_offset;
     private StackMapType[] types_of_locals;
     private StackMapType[] types_of_stack_items;
     private ConstantPool constant_pool;


     /**
      * Construct object from input stream.
      *
      * @param input Input stream
      * @throws IOException
      */
     StackMapEntry(final DataInput input, final ConstantPool constantPool) throws IOException {
         this(input.readByte() & 0xFF, -1, null, null, constantPool);

         if (frame_type >= Const.SAME_FRAME && frame_type <= Const.SAME_FRAME_MAX) {
             byte_code_offset = frame_type - Const.SAME_FRAME;
         } else if (frame_type >= Const.SAME_LOCALS_1_STACK_ITEM_FRAME &&
                    frame_type <= Const.SAME_LOCALS_1_STACK_ITEM_FRAME_MAX) {
             byte_code_offset = frame_type - Const.SAME_LOCALS_1_STACK_ITEM_FRAME;
             types_of_stack_items = new StackMapType[1];
             types_of_stack_items[0] = new StackMapType(input, constantPool);
         } else if (frame_type == Const.SAME_LOCALS_1_STACK_ITEM_FRAME_EXTENDED) {
             byte_code_offset = input.readShort();
             types_of_stack_items = new StackMapType[1];
             types_of_stack_items[0] = new StackMapType(input, constantPool);
         } else if (frame_type >= Const.CHOP_FRAME && frame_type <= Const.CHOP_FRAME_MAX) {
             byte_code_offset = input.readShort();
         } else if (frame_type == Const.SAME_FRAME_EXTENDED) {
             byte_code_offset = input.readShort();
         } else if (frame_type >= Const.APPEND_FRAME && frame_type <= Const.APPEND_FRAME_MAX) {
             byte_code_offset = input.readShort();
             final int number_of_locals = frame_type - 251;
             types_of_locals = new StackMapType[number_of_locals];
             for (int i = 0; i < number_of_locals; i++) {
                 types_of_locals[i] = new StackMapType(input, constantPool);
             }
         } else if (frame_type == Const.FULL_FRAME) {
             byte_code_offset = input.readShort();
             final int number_of_locals = input.readShort();
             types_of_locals = new StackMapType[number_of_locals];
             for (int i = 0; i < number_of_locals; i++) {
                 types_of_locals[i] = new StackMapType(input, constantPool);
             }
             final int number_of_stack_items = input.readShort();
             types_of_stack_items = new StackMapType[number_of_stack_items];
             for (int i = 0; i < number_of_stack_items; i++) {
                 types_of_stack_items[i] = new StackMapType(input, constantPool);
             }
         } else {
             /* Can't happen */
             throw new ClassFormatException ("Invalid frame type found while parsing stack map table: " + frame_type);
         }
     }

     /**
      * DO NOT USE
      *
      * @param byteCodeOffset
      * @param numberOfLocals NOT USED
      * @param typesOfLocals array of {@link StackMapType}s of locals
      * @param numberOfStackItems NOT USED
      * @param typesOfStackItems array ot {@link StackMapType}s of stack items
      * @param constantPool the constant pool
      * @deprecated Since 6.0, use {@link #StackMapEntry(int, int, StackMapType[], StackMapType[], ConstantPool)}
      * instead
      */
     @java.lang.Deprecated
     public StackMapEntry(final int byteCodeOffset, final int numberOfLocals,
             final StackMapType[] typesOfLocals, final int numberOfStackItems,
             final StackMapType[] typesOfStackItems, final ConstantPool constantPool) {
         this.byte_code_offset = byteCodeOffset;
         this.types_of_locals = typesOfLocals != null ? typesOfLocals : new StackMapType[0];
         this.types_of_stack_items = typesOfStackItems != null ? typesOfStackItems : new StackMapType[0];
         this.constant_pool = constantPool;
     }

     /**
      * Create an instance
      *
      * @param tag the frame_type to use
      * @param byteCodeOffset
      * @param typesOfLocals array of {@link StackMapType}s of locals
      * @param typesOfStackItems array ot {@link StackMapType}s of stack items
      * @param constantPool the constant pool
      */
     public StackMapEntry(final int tag, final int byteCodeOffset,
             final StackMapType[] typesOfLocals,
             final StackMapType[] typesOfStackItems, final ConstantPool constantPool) {
         this.frame_type = tag;
         this.byte_code_offset = byteCodeOffset;
         this.types_of_locals = typesOfLocals != null ? typesOfLocals : new StackMapType[0];
         this.types_of_stack_items = typesOfStackItems != null ? typesOfStackItems : new StackMapType[0];
         this.constant_pool = constantPool;
     }


     /**
      * Dump stack map entry
      *
      * @param file Output file stream
      * @throws IOException
      */
     public void dump( final DataOutputStream file ) throws IOException {
         file.write(frame_type);
         if (frame_type >= Const.SAME_FRAME && frame_type <= Const.SAME_FRAME_MAX) {
             // nothing to be done
         } else if (frame_type >= Const.SAME_LOCALS_1_STACK_ITEM_FRAME &&
                    frame_type <= Const.SAME_LOCALS_1_STACK_ITEM_FRAME_MAX) {
             types_of_stack_items[0].dump(file);
         } else if (frame_type == Const.SAME_LOCALS_1_STACK_ITEM_FRAME_EXTENDED) {
             file.writeShort(byte_code_offset);
             types_of_stack_items[0].dump(file);
         } else if (frame_type >= Const.CHOP_FRAME && frame_type <= Const.CHOP_FRAME_MAX) {
             file.writeShort(byte_code_offset);
         } else if (frame_type == Const.SAME_FRAME_EXTENDED) {
             file.writeShort(byte_code_offset);
         } else if (frame_type >= Const.APPEND_FRAME && frame_type <= Const.APPEND_FRAME_MAX) {
             file.writeShort(byte_code_offset);
             for (final StackMapType type : types_of_locals) {
                 type.dump(file);
             }
         } else if (frame_type == Const.FULL_FRAME) {
             file.writeShort(byte_code_offset);
             file.writeShort(types_of_locals.length);
             for (final StackMapType type : types_of_locals) {
                 type.dump(file);
             }
             file.writeShort(types_of_stack_items.length);
             for (final StackMapType type : types_of_stack_items) {
                 type.dump(file);
             }
         } else {
             /* Can't happen */
             throw new ClassFormatException ("Invalid Stack map table tag: " + frame_type);
         }
     }


     /**
      * @return String representation.
      */
     @Override
     public String toString() {
         final StringBuilder buf = new StringBuilder(64);
         buf.append("(");
         if (frame_type >= Const.SAME_FRAME && frame_type <= Const.SAME_FRAME_MAX) {
             buf.append("SAME");
         } else if (frame_type >= Const.SAME_LOCALS_1_STACK_ITEM_FRAME &&
                   frame_type <= Const.SAME_LOCALS_1_STACK_ITEM_FRAME_MAX) {
             buf.append("SAME_LOCALS_1_STACK");
         } else if (frame_type == Const.SAME_LOCALS_1_STACK_ITEM_FRAME_EXTENDED) {
             buf.append("SAME_LOCALS_1_STACK_EXTENDED");
         } else if (frame_type >= Const.CHOP_FRAME && frame_type <= Const.CHOP_FRAME_MAX) {
             buf.append("CHOP ").append(String.valueOf(251-frame_type));
         } else if (frame_type == Const.SAME_FRAME_EXTENDED) {
             buf.append("SAME_EXTENDED");
         } else if (frame_type >= Const.APPEND_FRAME && frame_type <= Const.APPEND_FRAME_MAX) {
             buf.append("APPEND ").append(String.valueOf(frame_type-251));
         } else if (frame_type == Const.FULL_FRAME) {
             buf.append("FULL");
         } else {
             buf.append("UNKNOWN (").append(frame_type).append(")");
         }
         buf.append(", offset delta=").append(byte_code_offset);
         if (types_of_locals.length > 0) {
             buf.append(", locals={");
             for (int i = 0; i < types_of_locals.length; i++) {
                 buf.append(types_of_locals[i]);
                 if (i < types_of_locals.length - 1) {
                     buf.append(", ");
                 }
             }
             buf.append("}");
         }
         if (types_of_stack_items.length > 0) {
             buf.append(", stack items={");
             for (int i = 0; i < types_of_stack_items.length; i++) {
                 buf.append(types_of_stack_items[i]);
                 if (i < types_of_stack_items.length - 1) {
                     buf.append(", ");
                 }
             }
             buf.append("}");
         }
         buf.append(")");
         return buf.toString();
     }


     /**
      * Calculate stack map entry size
      *
      */
     int getMapEntrySize() {
         if (frame_type >= Const.SAME_FRAME && frame_type <= Const.SAME_FRAME_MAX) {
             return 1;
         } else if (frame_type >= Const.SAME_LOCALS_1_STACK_ITEM_FRAME &&
                    frame_type <= Const.SAME_LOCALS_1_STACK_ITEM_FRAME_MAX) {
             return 1 + (types_of_stack_items[0].hasIndex() ? 3 : 1);
         } else if (frame_type == Const.SAME_LOCALS_1_STACK_ITEM_FRAME_EXTENDED) {
             return 3 + (types_of_stack_items[0].hasIndex() ? 3 : 1);
         } else if (frame_type >= Const.CHOP_FRAME && frame_type <= Const.CHOP_FRAME_MAX) {
             return 3;
         } else if (frame_type == Const.SAME_FRAME_EXTENDED) {
             return 3;
         } else if (frame_type >= Const.APPEND_FRAME && frame_type <= Const.APPEND_FRAME_MAX) {
             int len = 3;
             for (final StackMapType types_of_local : types_of_locals) {
                 len += types_of_local.hasIndex() ? 3 : 1;
             }
             return len;
         } else if (frame_type == Const.FULL_FRAME) {
             int len = 7;
             for (final StackMapType types_of_local : types_of_locals) {
                 len += types_of_local.hasIndex() ? 3 : 1;
             }
             for (final StackMapType types_of_stack_item : types_of_stack_items) {
                 len += types_of_stack_item.hasIndex() ? 3 : 1;
             }
             return len;
         } else {
             throw new RuntimeException("Invalid StackMap frame_type: " + frame_type);
         }
     }


     public void setFrameType( final int f ) {
         if (f >= Const.SAME_FRAME && f <= Const.SAME_FRAME_MAX) {
             byte_code_offset = f - Const.SAME_FRAME;
         } else if (f >= Const.SAME_LOCALS_1_STACK_ITEM_FRAME &&
                    f <= Const.SAME_LOCALS_1_STACK_ITEM_FRAME_MAX) {
             byte_code_offset = f - Const.SAME_LOCALS_1_STACK_ITEM_FRAME;
         } else if (f == Const.SAME_LOCALS_1_STACK_ITEM_FRAME_EXTENDED) { // CHECKSTYLE IGNORE EmptyBlock
         } else if (f >= Const.CHOP_FRAME && f <= Const.CHOP_FRAME_MAX) { // CHECKSTYLE IGNORE EmptyBlock
         } else if (f == Const.SAME_FRAME_EXTENDED) { // CHECKSTYLE IGNORE EmptyBlock
         } else if (f >= Const.APPEND_FRAME && f <= Const.APPEND_FRAME_MAX) { // CHECKSTYLE IGNORE EmptyBlock
         } else if (f == Const.FULL_FRAME) { // CHECKSTYLE IGNORE EmptyBlock
         } else {
             throw new RuntimeException("Invalid StackMap frame_type");
         }
         frame_type = f;
     }


     public int getFrameType() {
         return frame_type;
     }


     public void setByteCodeOffset( final int new_offset ) {
         if (new_offset < 0 || new_offset > 32767) {
             throw new RuntimeException("Invalid StackMap offset: " + new_offset);
         }

         if (frame_type >= Const.SAME_FRAME &&
             frame_type <= Const.SAME_FRAME_MAX) {
             if (new_offset > Const.SAME_FRAME_MAX) {
                 frame_type = Const.SAME_FRAME_EXTENDED;
             } else {
                 frame_type = new_offset;
             }
         } else if (frame_type >= Const.SAME_LOCALS_1_STACK_ITEM_FRAME &&
                    frame_type <= Const.SAME_LOCALS_1_STACK_ITEM_FRAME_MAX) {
             if (new_offset > Const.SAME_FRAME_MAX) {
                 frame_type = Const.SAME_LOCALS_1_STACK_ITEM_FRAME_EXTENDED;
             } else {
                 frame_type = Const.SAME_LOCALS_1_STACK_ITEM_FRAME + new_offset;
             }
         } else if (frame_type == Const.SAME_LOCALS_1_STACK_ITEM_FRAME_EXTENDED) { // CHECKSTYLE IGNORE EmptyBlock
         } else if (frame_type >= Const.CHOP_FRAME &&
                    frame_type <= Const.CHOP_FRAME_MAX) { // CHECKSTYLE IGNORE EmptyBlock
         } else if (frame_type == Const.SAME_FRAME_EXTENDED) { // CHECKSTYLE IGNORE EmptyBlock
         } else if (frame_type >= Const.APPEND_FRAME &&
                    frame_type <= Const.APPEND_FRAME_MAX) { // CHECKSTYLE IGNORE EmptyBlock
         } else if (frame_type == Const.FULL_FRAME) { // CHECKSTYLE IGNORE EmptyBlock
         } else {
             throw new RuntimeException("Invalid StackMap frame_type: " + frame_type);
         }
         byte_code_offset = new_offset;
     }


     /**
      * Update the distance (as an offset delta) from this StackMap
      * entry to the next.  Note that this might cause the the
      * frame type to change.  Note also that delta may be negative.
      *
      * @param delta offset delta
      */
     public void updateByteCodeOffset(final int delta) {
         setByteCodeOffset(byte_code_offset + delta);
     }


     public int getByteCodeOffset() {
         return byte_code_offset;
     }


     /**
      *
      * @deprecated since 6.0
      */
     @java.lang.Deprecated
     public void setNumberOfLocals( final int n ) { // TODO unused
     }


     public int getNumberOfLocals() {
         return types_of_locals.length;
     }


     public void setTypesOfLocals( final StackMapType[] types ) {
         types_of_locals = types != null ? types : new StackMapType[0];
     }


     public StackMapType[] getTypesOfLocals() {
         return types_of_locals;
     }


     /**
      *
      * @deprecated since 6.0
      */
     @java.lang.Deprecated
     public void setNumberOfStackItems( final int n ) { // TODO unused
     }


     public int getNumberOfStackItems() {
         return types_of_stack_items.length;
     }


     public void setTypesOfStackItems( final StackMapType[] types ) {
         types_of_stack_items = types != null ? types : new StackMapType[0];
     }


     public StackMapType[] getTypesOfStackItems() {
         return types_of_stack_items;
     }


     /**
      * @return deep copy of this object
      */
     public StackMapEntry copy() {
         StackMapEntry e;
         try {
             e = (StackMapEntry) clone();
         } catch (final CloneNotSupportedException ex) {
             throw new Error("Clone Not Supported");
         }

         e.types_of_locals = new StackMapType[types_of_locals.length];
         for (int i = 0; i < types_of_locals.length; i++) {
             e.types_of_locals[i] = types_of_locals[i].copy();
         }
         e.types_of_stack_items = new StackMapType[types_of_stack_items.length];
         for (int i = 0; i < types_of_stack_items.length; i++) {
             e.types_of_stack_items[i] = types_of_stack_items[i].copy();
         }
         return e;
     }


     /**
      * Called by objects that are traversing the nodes of the tree implicitely
      * defined by the contents of a Java class. I.e., the hierarchy of methods,
      * fields, attributes, etc. spawns a tree of objects.
      *
      * @param v Visitor object
      */
     @Override
     public void accept( final Visitor v ) {
         v.visitStackMapEntry(this);
     }


     /**
      * @return Constant pool used by this object.
      */
     public ConstantPool getConstantPool() {
         return constant_pool;
     }


     /**
      * @param constant_pool Constant pool to be used for this object.
      */
     public void setConstantPool( final ConstantPool constant_pool ) {
         this.constant_pool = constant_pool;
     }
 }
	/*
	* reserved comment block
	* DO NOT REMOVE OR ALTER!
	*/
	/*
	* 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.
	*/

	package com.sun.org.apache.bcel.internal.classfile;

	import java.io.DataInput;
	import java.io.DataOutputStream;
	import java.io.IOException;
	import com.sun.org.apache.bcel.internal.Const;

	/**
	* This class represents a stack map entry recording the types of
	* local variables and the the of stack items at a given byte code offset.
	* See CLDC specification 5.3.1.2
	*
	* @see StackMap
	* @see StackMapType
	*/
	public final class StackMapEntry implements Node, Cloneable
	{

	private int frame_type;
	private int byte_code_offset;
	private StackMapType[] types_of_locals;
	private StackMapType[] types_of_stack_items;
	private ConstantPool constant_pool;


	/**
	* Construct object from input stream.
	*
	* @param input Input stream
	* @throws IOException
	*/
	StackMapEntry(final DataInput input, final ConstantPool constantPool) throws IOException {
	this(input.readByte() & 0xFF, -1, null, null, constantPool);

	if (frame_type >= Const.SAME_FRAME && frame_type <= Const.SAME_FRAME_MAX) {
	byte_code_offset = frame_type - Const.SAME_FRAME;
	} else if (frame_type >= Const.SAME_LOCALS_1_STACK_ITEM_FRAME &&
	frame_type <= Const.SAME_LOCALS_1_STACK_ITEM_FRAME_MAX) {
	byte_code_offset = frame_type - Const.SAME_LOCALS_1_STACK_ITEM_FRAME;
	types_of_stack_items = new StackMapType[1];
	types_of_stack_items[0] = new StackMapType(input, constantPool);
	} else if (frame_type == Const.SAME_LOCALS_1_STACK_ITEM_FRAME_EXTENDED) {
	byte_code_offset = input.readShort();
	types_of_stack_items = new StackMapType[1];
	types_of_stack_items[0] = new StackMapType(input, constantPool);
	} else if (frame_type >= Const.CHOP_FRAME && frame_type <= Const.CHOP_FRAME_MAX) {
	byte_code_offset = input.readShort();
	} else if (frame_type == Const.SAME_FRAME_EXTENDED) {
	byte_code_offset = input.readShort();
	} else if (frame_type >= Const.APPEND_FRAME && frame_type <= Const.APPEND_FRAME_MAX) {
	byte_code_offset = input.readShort();
	final int number_of_locals = frame_type - 251;
	types_of_locals = new StackMapType[number_of_locals];
	for (int i = 0; i < number_of_locals; i++) {
	types_of_locals[i] = new StackMapType(input, constantPool);
	}
	} else if (frame_type == Const.FULL_FRAME) {
	byte_code_offset = input.readShort();
	final int number_of_locals = input.readShort();
	types_of_locals = new StackMapType[number_of_locals];
	for (int i = 0; i < number_of_locals; i++) {
	types_of_locals[i] = new StackMapType(input, constantPool);
	}
	final int number_of_stack_items = input.readShort();
	types_of_stack_items = new StackMapType[number_of_stack_items];
	for (int i = 0; i < number_of_stack_items; i++) {
	types_of_stack_items[i] = new StackMapType(input, constantPool);
	}
	} else {
	/* Can't happen */
	throw new ClassFormatException ("Invalid frame type found while parsing stack map table: " + frame_type);
	}
	}

	/**
	* DO NOT USE
	*
	* @param byteCodeOffset
	* @param numberOfLocals NOT USED
	* @param typesOfLocals array of {@link StackMapType}s of locals
	* @param numberOfStackItems NOT USED
	* @param typesOfStackItems array ot {@link StackMapType}s of stack items
	* @param constantPool the constant pool
	* @deprecated Since 6.0, use {@link #StackMapEntry(int, int, StackMapType[], StackMapType[], ConstantPool)}
	* instead
	*/
	@java.lang.Deprecated
	public StackMapEntry(final int byteCodeOffset, final int numberOfLocals,
	final StackMapType[] typesOfLocals, final int numberOfStackItems,
	final StackMapType[] typesOfStackItems, final ConstantPool constantPool) {
	this.byte_code_offset = byteCodeOffset;
	this.types_of_locals = typesOfLocals != null ? typesOfLocals : new StackMapType[0];
	this.types_of_stack_items = typesOfStackItems != null ? typesOfStackItems : new StackMapType[0];
	this.constant_pool = constantPool;
	}

	/**
	* Create an instance
	*
	* @param tag the frame_type to use
	* @param byteCodeOffset
	* @param typesOfLocals array of {@link StackMapType}s of locals
	* @param typesOfStackItems array ot {@link StackMapType}s of stack items
	* @param constantPool the constant pool
	*/
	public StackMapEntry(final int tag, final int byteCodeOffset,
	final StackMapType[] typesOfLocals,
	final StackMapType[] typesOfStackItems, final ConstantPool constantPool) {
	this.frame_type = tag;
	this.byte_code_offset = byteCodeOffset;
	this.types_of_locals = typesOfLocals != null ? typesOfLocals : new StackMapType[0];
	this.types_of_stack_items = typesOfStackItems != null ? typesOfStackItems : new StackMapType[0];
	this.constant_pool = constantPool;
	}


	/**
	* Dump stack map entry
	*
	* @param file Output file stream
	* @throws IOException
	*/
	public void dump( final DataOutputStream file ) throws IOException {
	file.write(frame_type);
	if (frame_type >= Const.SAME_FRAME && frame_type <= Const.SAME_FRAME_MAX) {
	// nothing to be done
	} else if (frame_type >= Const.SAME_LOCALS_1_STACK_ITEM_FRAME &&
	frame_type <= Const.SAME_LOCALS_1_STACK_ITEM_FRAME_MAX) {
	types_of_stack_items[0].dump(file);
	} else if (frame_type == Const.SAME_LOCALS_1_STACK_ITEM_FRAME_EXTENDED) {
	file.writeShort(byte_code_offset);
	types_of_stack_items[0].dump(file);
	} else if (frame_type >= Const.CHOP_FRAME && frame_type <= Const.CHOP_FRAME_MAX) {
	file.writeShort(byte_code_offset);
	} else if (frame_type == Const.SAME_FRAME_EXTENDED) {
	file.writeShort(byte_code_offset);
	} else if (frame_type >= Const.APPEND_FRAME && frame_type <= Const.APPEND_FRAME_MAX) {
	file.writeShort(byte_code_offset);
	for (final StackMapType type : types_of_locals) {
	type.dump(file);
	}
	} else if (frame_type == Const.FULL_FRAME) {
	file.writeShort(byte_code_offset);
	file.writeShort(types_of_locals.length);
	for (final StackMapType type : types_of_locals) {
	type.dump(file);
	}
	file.writeShort(types_of_stack_items.length);
	for (final StackMapType type : types_of_stack_items) {
	type.dump(file);
	}
	} else {
	/* Can't happen */
	throw new ClassFormatException ("Invalid Stack map table tag: " + frame_type);
	}
	}


	/**
	* @return String representation.
	*/
	@Override
	public String toString() {
	final StringBuilder buf = new StringBuilder(64);
	buf.append("(");
	if (frame_type >= Const.SAME_FRAME && frame_type <= Const.SAME_FRAME_MAX) {
	buf.append("SAME");
	} else if (frame_type >= Const.SAME_LOCALS_1_STACK_ITEM_FRAME &&
	frame_type <= Const.SAME_LOCALS_1_STACK_ITEM_FRAME_MAX) {
	buf.append("SAME_LOCALS_1_STACK");
	} else if (frame_type == Const.SAME_LOCALS_1_STACK_ITEM_FRAME_EXTENDED) {
	buf.append("SAME_LOCALS_1_STACK_EXTENDED");
	} else if (frame_type >= Const.CHOP_FRAME && frame_type <= Const.CHOP_FRAME_MAX) {
	buf.append("CHOP ").append(String.valueOf(251-frame_type));
	} else if (frame_type == Const.SAME_FRAME_EXTENDED) {
	buf.append("SAME_EXTENDED");
	} else if (frame_type >= Const.APPEND_FRAME && frame_type <= Const.APPEND_FRAME_MAX) {
	buf.append("APPEND ").append(String.valueOf(frame_type-251));
	} else if (frame_type == Const.FULL_FRAME) {
	buf.append("FULL");
	} else {
	buf.append("UNKNOWN (").append(frame_type).append(")");
	}
	buf.append(", offset delta=").append(byte_code_offset);
	if (types_of_locals.length > 0) {
	buf.append(", locals={");
	for (int i = 0; i < types_of_locals.length; i++) {
	buf.append(types_of_locals[i]);
	if (i < types_of_locals.length - 1) {
	buf.append(", ");
	}
	}
	buf.append("}");
	}
	if (types_of_stack_items.length > 0) {
	buf.append(", stack items={");
	for (int i = 0; i < types_of_stack_items.length; i++) {
	buf.append(types_of_stack_items[i]);
	if (i < types_of_stack_items.length - 1) {
	buf.append(", ");
	}
	}
	buf.append("}");
	}
	buf.append(")");
	return buf.toString();
	}


	/**
	* Calculate stack map entry size
	*
	*/
	int getMapEntrySize() {
	if (frame_type >= Const.SAME_FRAME && frame_type <= Const.SAME_FRAME_MAX) {
	return 1;
	} else if (frame_type >= Const.SAME_LOCALS_1_STACK_ITEM_FRAME &&
	frame_type <= Const.SAME_LOCALS_1_STACK_ITEM_FRAME_MAX) {
	return 1 + (types_of_stack_items[0].hasIndex() ? 3 : 1);
	} else if (frame_type == Const.SAME_LOCALS_1_STACK_ITEM_FRAME_EXTENDED) {
	return 3 + (types_of_stack_items[0].hasIndex() ? 3 : 1);
	} else if (frame_type >= Const.CHOP_FRAME && frame_type <= Const.CHOP_FRAME_MAX) {
	return 3;
	} else if (frame_type == Const.SAME_FRAME_EXTENDED) {
	return 3;
	} else if (frame_type >= Const.APPEND_FRAME && frame_type <= Const.APPEND_FRAME_MAX) {
	int len = 3;
	for (final StackMapType types_of_local : types_of_locals) {
	len += types_of_local.hasIndex() ? 3 : 1;
	}
	return len;
	} else if (frame_type == Const.FULL_FRAME) {
	int len = 7;
	for (final StackMapType types_of_local : types_of_locals) {
	len += types_of_local.hasIndex() ? 3 : 1;
	}
	for (final StackMapType types_of_stack_item : types_of_stack_items) {
	len += types_of_stack_item.hasIndex() ? 3 : 1;
	}
	return len;
	} else {
	throw new RuntimeException("Invalid StackMap frame_type: " + frame_type);
	}
	}


	public void setFrameType( final int f ) {
	if (f >= Const.SAME_FRAME && f <= Const.SAME_FRAME_MAX) {
	byte_code_offset = f - Const.SAME_FRAME;
	} else if (f >= Const.SAME_LOCALS_1_STACK_ITEM_FRAME &&
	f <= Const.SAME_LOCALS_1_STACK_ITEM_FRAME_MAX) {
	byte_code_offset = f - Const.SAME_LOCALS_1_STACK_ITEM_FRAME;
	} else if (f == Const.SAME_LOCALS_1_STACK_ITEM_FRAME_EXTENDED) { // CHECKSTYLE IGNORE EmptyBlock
	} else if (f >= Const.CHOP_FRAME && f <= Const.CHOP_FRAME_MAX) { // CHECKSTYLE IGNORE EmptyBlock
	} else if (f == Const.SAME_FRAME_EXTENDED) { // CHECKSTYLE IGNORE EmptyBlock
	} else if (f >= Const.APPEND_FRAME && f <= Const.APPEND_FRAME_MAX) { // CHECKSTYLE IGNORE EmptyBlock
	} else if (f == Const.FULL_FRAME) { // CHECKSTYLE IGNORE EmptyBlock
	} else {
	throw new RuntimeException("Invalid StackMap frame_type");
	}
	frame_type = f;
	}


	public int getFrameType() {
	return frame_type;
	}


	public void setByteCodeOffset( final int new_offset ) {
	if (new_offset < 0 \|\| new_offset > 32767) {
	throw new RuntimeException("Invalid StackMap offset: " + new_offset);
	}

	if (frame_type >= Const.SAME_FRAME &&
	frame_type <= Const.SAME_FRAME_MAX) {
	if (new_offset > Const.SAME_FRAME_MAX) {
	frame_type = Const.SAME_FRAME_EXTENDED;
	} else {
	frame_type = new_offset;
	}
	} else if (frame_type >= Const.SAME_LOCALS_1_STACK_ITEM_FRAME &&
	frame_type <= Const.SAME_LOCALS_1_STACK_ITEM_FRAME_MAX) {
	if (new_offset > Const.SAME_FRAME_MAX) {
	frame_type = Const.SAME_LOCALS_1_STACK_ITEM_FRAME_EXTENDED;
	} else {
	frame_type = Const.SAME_LOCALS_1_STACK_ITEM_FRAME + new_offset;
	}
	} else if (frame_type == Const.SAME_LOCALS_1_STACK_ITEM_FRAME_EXTENDED) { // CHECKSTYLE IGNORE EmptyBlock
	} else if (frame_type >= Const.CHOP_FRAME &&
	frame_type <= Const.CHOP_FRAME_MAX) { // CHECKSTYLE IGNORE EmptyBlock
	} else if (frame_type == Const.SAME_FRAME_EXTENDED) { // CHECKSTYLE IGNORE EmptyBlock
	} else if (frame_type >= Const.APPEND_FRAME &&
	frame_type <= Const.APPEND_FRAME_MAX) { // CHECKSTYLE IGNORE EmptyBlock
	} else if (frame_type == Const.FULL_FRAME) { // CHECKSTYLE IGNORE EmptyBlock
	} else {
	throw new RuntimeException("Invalid StackMap frame_type: " + frame_type);
	}
	byte_code_offset = new_offset;
	}


	/**
	* Update the distance (as an offset delta) from this StackMap
	* entry to the next. Note that this might cause the the
	* frame type to change. Note also that delta may be negative.
	*
	* @param delta offset delta
	*/
	public void updateByteCodeOffset(final int delta) {
	setByteCodeOffset(byte_code_offset + delta);
	}


	public int getByteCodeOffset() {
	return byte_code_offset;
	}


	/**
	*
	* @deprecated since 6.0
	*/
	@java.lang.Deprecated
	public void setNumberOfLocals( final int n ) { // TODO unused
	}


	public int getNumberOfLocals() {
	return types_of_locals.length;
	}


	public void setTypesOfLocals( final StackMapType[] types ) {
	types_of_locals = types != null ? types : new StackMapType[0];
	}


	public StackMapType[] getTypesOfLocals() {
	return types_of_locals;
	}


	/**
	*
	* @deprecated since 6.0
	*/
	@java.lang.Deprecated
	public void setNumberOfStackItems( final int n ) { // TODO unused
	}


	public int getNumberOfStackItems() {
	return types_of_stack_items.length;
	}


	public void setTypesOfStackItems( final StackMapType[] types ) {
	types_of_stack_items = types != null ? types : new StackMapType[0];
	}


	public StackMapType[] getTypesOfStackItems() {
	return types_of_stack_items;
	}


	/**
	* @return deep copy of this object
	*/
	public StackMapEntry copy() {
	StackMapEntry e;
	try {
	e = (StackMapEntry) clone();
	} catch (final CloneNotSupportedException ex) {
	throw new Error("Clone Not Supported");
	}

	e.types_of_locals = new StackMapType[types_of_locals.length];
	for (int i = 0; i < types_of_locals.length; i++) {
	e.types_of_locals[i] = types_of_locals[i].copy();
	}
	e.types_of_stack_items = new StackMapType[types_of_stack_items.length];
	for (int i = 0; i < types_of_stack_items.length; i++) {
	e.types_of_stack_items[i] = types_of_stack_items[i].copy();
	}
	return e;
	}


	/**
	* Called by objects that are traversing the nodes of the tree implicitely
	* defined by the contents of a Java class. I.e., the hierarchy of methods,
	* fields, attributes, etc. spawns a tree of objects.
	*
	* @param v Visitor object
	*/
	@Override
	public void accept( final Visitor v ) {
	v.visitStackMapEntry(this);
	}


	/**
	* @return Constant pool used by this object.
	*/
	public ConstantPool getConstantPool() {
	return constant_pool;
	}


	/**
	* @param constant_pool Constant pool to be used for this object.
	*/
	public void setConstantPool( final ConstantPool constant_pool ) {
	this.constant_pool = constant_pool;
	}
	}