classUtils.javassist.bytecode
Class CodeAttribute

java.lang.Object
  classUtils.javassist.bytecode.AttributeInfo
      classUtils.javassist.bytecode.CodeAttribute

All Implemented Interfaces:

Opcode

public class CodeAttribute
extends AttributeInfo
implements Opcode

Code_attribute.

To browse the code field of a Code_attribute structure, use CodeIterator.

See Also:

CodeIterator

Nested Class Summary

static class

CodeAttribute.RuntimeCopyException An exception that may be thrown by copy() in CodeAttribute.

Field Summary

static java.lang.String

tag The name of this attribute "Code".

Fields inherited from interface classUtils.javassist.bytecode.Opcode

AALOAD, AASTORE, ACONST_NULL, ALOAD, ALOAD_0, ALOAD_1, ALOAD_2, ALOAD_3, ANEWARRAY, ARETURN, ARRAYLENGTH, ASTORE, ASTORE_0, ASTORE_1, ASTORE_2, ASTORE_3, ATHROW, BALOAD, BASTORE, BIPUSH, CALOAD, CASTORE, CHECKCAST, D2F, D2I, D2L, DADD, DALOAD, DASTORE, DCMPG, DCMPL, DCONST_0, DCONST_1, DDIV, DLOAD, DLOAD_0, DLOAD_1, DLOAD_2, DLOAD_3, DMUL, DNEG, DREM, DRETURN, DSTORE, DSTORE_0, DSTORE_1, DSTORE_2, DSTORE_3, DSUB, DUP, DUP_X1, DUP_X2, DUP2, DUP2_X1, DUP2_X2, F2D, F2I, F2L, FADD, FALOAD, FASTORE, FCMPG, FCMPL, FCONST_0, FCONST_1, FCONST_2, FDIV, FLOAD, FLOAD_0, FLOAD_1, FLOAD_2, FLOAD_3, FMUL, FNEG, FREM, FRETURN, FSTORE, FSTORE_0, FSTORE_1, FSTORE_2, FSTORE_3, FSUB, GETFIELD, GETSTATIC, GOTO, GOTO_W, I2B, I2C, I2D, I2F, I2L, I2S, IADD, IALOAD, IAND, IASTORE, ICONST_0, ICONST_1, ICONST_2, ICONST_3, ICONST_4, ICONST_5, ICONST_M1, IDIV, IF_ACMPEQ, IF_ACMPNE, IF_ICMPEQ, IF_ICMPGE, IF_ICMPGT, IF_ICMPLE, IF_ICMPLT, IF_ICMPNE, IFEQ, IFGE, IFGT, IFLE, IFLT, IFNE, IFNONNULL, IFNULL, IINC, ILOAD, ILOAD_0, ILOAD_1, ILOAD_2, ILOAD_3, IMUL, INEG, INSTANCEOF, INVOKEINTERFACE, INVOKESPECIAL, INVOKESTATIC, INVOKEVIRTUAL, IOR, IREM, IRETURN, ISHL, ISHR, ISTORE, ISTORE_0, ISTORE_1, ISTORE_2, ISTORE_3, ISUB, IUSHR, IXOR, JSR, JSR_W, L2D, L2F, L2I, LADD, LALOAD, LAND, LASTORE, LCMP, LCONST_0, LCONST_1, LDC, LDC_W, LDC2_W, LDIV, LLOAD, LLOAD_0, LLOAD_1, LLOAD_2, LLOAD_3, LMUL, LNEG, LOOKUPSWITCH, LOR, LREM, LRETURN, LSHL, LSHR, LSTORE, LSTORE_0, LSTORE_1, LSTORE_2, LSTORE_3, LSUB, LUSHR, LXOR, MONITORENTER, MONITOREXIT, MULTIANEWARRAY, NEW, NEWARRAY, NOP, POP, POP2, PUTFIELD, PUTSTATIC, RET, RETURN, SALOAD, SASTORE, SIPUSH, STACK_GROW, SWAP, T_BOOLEAN, T_BYTE, T_CHAR, T_DOUBLE, T_FLOAT, T_INT, T_LONG, T_SHORT, TABLESWITCH, WIDE

Constructor Summary

CodeAttribute(ConstPool cp, int stack, int locals, byte[] code, ExceptionTable etable)
Constructs a Code_attribute.

Method Summary

AttributeInfo	copy(ConstPool newCp, java.util.Map classnames) Makes a copy.
byte[]	get() This method is not available.
AttributeInfo	getAttribute(java.lang.String name) Returns the attribute with the specified name.
java.util.List	getAttributes() Returns attributes[].
byte[]	getCode() Returns code[].
int	getCodeLength() Returns code_length.
java.lang.String	getDeclaringClass() Returns the name of the class declaring the method including this code attribute.
ExceptionTable	getExceptionTable() Returns exception_table[].
int	getMaxLocals() Returns max_locals.
int	getMaxStack() Returns max_stack.
CodeIterator	iterator() Makes a new iterator for reading this code attribute.
int	length() Returns the length of this attribute_info structure.
void	set(byte[] newinfo) This method is not available.
void	setMaxLocals(int value) Sets max_locals.
void	setMaxStack(int value) Sets max_stack.

Methods inherited from class classUtils.javassist.bytecode.AttributeInfo

getConstPool, getName

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

tag

public static final java.lang.String tag

The name of this attribute "Code".

See Also:

Constant Field Values

Constructor Detail

CodeAttribute

public CodeAttribute(ConstPool cp,
                     int stack,
                     int locals,
                     byte[] code,
                     ExceptionTable etable)

Constructs a Code_attribute.

Parameters:

cp - constant pool table

stack - max_stack

locals - max_locals

code - code[]

etable - exception_table[]

Method Detail

copy

public AttributeInfo copy(ConstPool newCp,
                          java.util.Map classnames)
                   throws CodeAttribute.RuntimeCopyException

Makes a copy. Class names are replaced according to the given Map object.

Overrides:

copy in class AttributeInfo

Parameters:

newCp - the constant pool table used by the new copy.

classnames - pairs of replaced and substituted class names.

Returns:

CodeAttribute object.

Throws:

CodeAttribute.RuntimeCopyException - if a BadBytecode exception is thrown, it is converted into RuntimeCopyException.

length

public int length()

Returns the length of this attribute_info structure. The returned value is attribute_length + 6.

Overrides:

length in class AttributeInfo

get

public byte[] get()

This method is not available.

Overrides:

get in class AttributeInfo

Throws:

java.lang.UnsupportedOperationException - always thrown.

set

public void set(byte[] newinfo)

This method is not available.

Overrides:

set in class AttributeInfo

Throws:

java.lang.UnsupportedOperationException - always thrown.

getDeclaringClass

public java.lang.String getDeclaringClass()

Returns the name of the class declaring the method including this code attribute.

getMaxStack

public int getMaxStack()

Returns max_stack.

setMaxStack

public void setMaxStack(int value)

Sets max_stack.

getMaxLocals

public int getMaxLocals()

Returns max_locals.

setMaxLocals

public void setMaxLocals(int value)

Sets max_locals.

getCodeLength

public int getCodeLength()

Returns code_length.

getCode

public byte[] getCode()

Returns code[].

iterator

public CodeIterator iterator()

Makes a new iterator for reading this code attribute.

getExceptionTable

public ExceptionTable getExceptionTable()

Returns exception_table[].

getAttributes

public java.util.List getAttributes()

Returns attributes[]. It returns a list of AttributeInfo.

See Also:

AttributeInfo

getAttribute

public AttributeInfo getAttribute(java.lang.String name)

Returns the attribute with the specified name. If it is not found, this method returns null.

Parameters:

name - attribute name

Returns:

an AttributeInfo object or null.