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src/java.xml/share/classes/com/sun/org/apache/bcel/internal/classfile/StackMap.java
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*** 19,152 ****
* limitations under the License.
*/
package com.sun.org.apache.bcel.internal.classfile;
! import com.sun.org.apache.bcel.internal.Constants;
! import java.io.*;
/**
* This class represents a stack map attribute used for
* preverification of Java classes for the <a
* href="http://java.sun.com/j2me/"> Java 2 Micro Edition</a>
* (J2ME). This attribute is used by the <a
* href="http://java.sun.com/products/cldc/">KVM</a> and contained
* within the Code attribute of a method. See CLDC specification
* 5.3.1.2
*
! * @author <A HREF="mailto:markus.dahm@berlin.de">M. Dahm</A>
* @see Code
* @see StackMapEntry
* @see StackMapType
*/
! public final class StackMap extends Attribute implements Node {
! private int map_length;
private StackMapEntry[] map; // Table of stack map entries
/*
* @param name_index Index of name
* @param length Content length in bytes
* @param map Table of stack map entries
* @param constant_pool Array of constants
*/
! public StackMap(int name_index, int length, StackMapEntry[] map,
! ConstantPool constant_pool)
! {
! super(Constants.ATTR_STACK_MAP, name_index, length, constant_pool);
!
! setStackMap(map);
}
/**
! * Construct object from file stream.
* @param name_index Index of name
* @param length Content length in bytes
! * @param file Input stream
! * @throws IOException
* @param constant_pool Array of constants
*/
! StackMap(int name_index, int length, DataInputStream file,
! ConstantPool constant_pool) throws IOException
! {
! this(name_index, length, (StackMapEntry[])null, constant_pool);
!
! map_length = file.readUnsignedShort();
map = new StackMapEntry[map_length];
!
! for(int i=0; i < map_length; i++)
! map[i] = new StackMapEntry(file, constant_pool);
}
/**
* Dump line number table attribute to file stream in binary format.
*
* @param file Output file stream
* @throws IOException
*/
! public final void dump(DataOutputStream file) throws IOException
! {
super.dump(file);
! file.writeShort(map_length);
! for(int i=0; i < map_length; i++)
! map[i].dump(file);
}
/**
* @return Array of stack map entries
*/
! public final StackMapEntry[] getStackMap() { return map; }
/**
* @param map Array of stack map entries
*/
! public final void setStackMap(StackMapEntry[] map) {
this.map = map;
!
! map_length = (map == null)? 0 : map.length;
}
/**
* @return String representation.
*/
public final String toString() {
! StringBuffer buf = new StringBuffer("StackMap(");
!
! for(int i=0; i < map_length; i++) {
! buf.append(map[i].toString());
!
! if(i < map_length - 1)
buf.append(", ");
}
!
buf.append(')');
-
return buf.toString();
}
/**
* @return deep copy of this attribute
*/
! public Attribute copy(ConstantPool constant_pool) {
! StackMap c = (StackMap)clone();
!
! c.map = new StackMapEntry[map_length];
! for(int i=0; i < map_length; i++)
c.map[i] = map[i].copy();
!
! c.constant_pool = constant_pool;
return c;
}
/**
* 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
*/
! public void accept(Visitor v) {
v.visitStackMap(this);
}
! public final int getMapLength() { return map_length; }
}
--- 19,165 ----
* 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 attribute used for
* preverification of Java classes for the <a
* href="http://java.sun.com/j2me/"> Java 2 Micro Edition</a>
* (J2ME). This attribute is used by the <a
* href="http://java.sun.com/products/cldc/">KVM</a> and contained
* within the Code attribute of a method. See CLDC specification
* 5.3.1.2
*
! * @version $Id: StackMap.java 1749603 2016-06-21 20:50:19Z ggregory $
* @see Code
* @see StackMapEntry
* @see StackMapType
*/
! public final class StackMap extends Attribute {
!
private StackMapEntry[] map; // Table of stack map entries
+
/*
* @param name_index Index of name
* @param length Content length in bytes
* @param map Table of stack map entries
* @param constant_pool Array of constants
*/
! public StackMap(final int name_index, final int length, final StackMapEntry[] map, final ConstantPool constant_pool) {
! super(Const.ATTR_STACK_MAP, name_index, length, constant_pool);
! this.map = map;
}
+
/**
! * Construct object from input stream.
! *
* @param name_index Index of name
* @param length Content length in bytes
! * @param input Input stream
* @param constant_pool Array of constants
+ * @throws IOException
*/
! StackMap(final int name_index, final int length, final DataInput input, final ConstantPool constant_pool) throws IOException {
! this(name_index, length, (StackMapEntry[]) null, constant_pool);
! final int map_length = input.readUnsignedShort();
map = new StackMapEntry[map_length];
! for (int i = 0; i < map_length; i++) {
! map[i] = new StackMapEntry(input, constant_pool);
}
+ }
+
/**
* Dump line number table attribute to file stream in binary format.
*
* @param file Output file stream
* @throws IOException
*/
! @Override
! public final void dump( final DataOutputStream file ) throws IOException {
super.dump(file);
! file.writeShort(map.length);
! for (final StackMapEntry entry : map) {
! entry.dump(file);
}
+ }
+
/**
* @return Array of stack map entries
*/
! public final StackMapEntry[] getStackMap() {
! return map;
! }
!
/**
* @param map Array of stack map entries
*/
! public final void setStackMap( final StackMapEntry[] map ) {
this.map = map;
! int len = 2; // Length of 'number_of_entries' field prior to the array of stack maps
! for (final StackMapEntry element : map) {
! len += element.getMapEntrySize();
! }
! setLength(len);
}
+
/**
* @return String representation.
*/
+ @Override
public final String toString() {
! final StringBuilder buf = new StringBuilder("StackMap(");
! for (int i = 0; i < map.length; i++) {
! buf.append(map[i]);
! if (i < map.length - 1) {
buf.append(", ");
}
! }
buf.append(')');
return buf.toString();
}
+
/**
* @return deep copy of this attribute
*/
! @Override
! public Attribute copy( final ConstantPool _constant_pool ) {
! final StackMap c = (StackMap) clone();
! c.map = new StackMapEntry[map.length];
! for (int i = 0; i < map.length; i++) {
c.map[i] = map[i].copy();
! }
! c.setConstantPool(_constant_pool);
return c;
}
+
/**
* 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.visitStackMap(this);
}
!
! public final int getMapLength() {
! return map == null ? 0 : map.length;
! }
}
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