CodeWriter

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org.objectweb.asm
Class CodeWriter

java.lang.Object
  org.objectweb.asm.CodeWriter

All Implemented Interfaces:: CodeVisitor

public class CodeWriter
extends java.lang.Object
implements CodeVisitor

A CodeVisitor that generates Java bytecode instructions. Each visit method of this class appends the bytecode corresponding to the visited instruction to a byte vector, in the order these methods are called.

Constructor Summary
`protected`	`CodeWriter(ClassWriter cw, boolean computeMaxs)` Constructs a CodeWriter.

Method Summary
`protected byte[]`	`getCode()` Returns the current bytecode of this method.
`protected int`	`getCodeSize()` Returns the current size of the bytecode of this method.
`protected void`	`init(int access, java.lang.String name, java.lang.String desc, java.lang.String[] exceptions)` Initializes this CodeWriter to define the bytecode of the specified method.
`protected int[]`	`resizeInstructions(int[] indexes, int[] sizes, int len)` Resizes the designated instructions, while keeping jump offsets and instruction addresses consistent.
`void`	`visitFieldInsn(int opcode, java.lang.String owner, java.lang.String name, java.lang.String desc)` Visits a field instruction.
`void`	`visitIincInsn(int var, int increment)` Visits an IINC instruction.
`void`	`visitInsn(int opcode)` Visits a zero operand instruction.
`void`	`visitIntInsn(int opcode, int operand)` Visits an instruction with a single int operand.
`void`	`visitJumpInsn(int opcode, Label label)` Visits a jump instruction.
`void`	`visitLabel(Label label)` Visits a label.
`void`	`visitLdcInsn(java.lang.Object cst)` Visits a LDC instruction.
`void`	`visitLineNumber(int line, Label start)` Visits a line number declaration.
`void`	`visitLocalVariable(java.lang.String name, java.lang.String desc, Label start, Label end, int index)` Visits a local variable declaration.
`void`	`visitLookupSwitchInsn(Label dflt, int[] keys, Label[] labels)` Visits a LOOKUPSWITCH instruction.
`void`	`visitMaxs(int maxStack, int maxLocals)` Visits the maximum stack size and the maximum number of local variables of the method.
`void`	`visitMethodInsn(int opcode, java.lang.String owner, java.lang.String name, java.lang.String desc)` Visits a method instruction.
`void`	`visitMultiANewArrayInsn(java.lang.String desc, int dims)` Visits a MULTIANEWARRAY instruction.
`void`	`visitTableSwitchInsn(int min, int max, Label dflt, Label[] labels)` Visits a TABLESWITCH instruction.
`void`	`visitTryCatchBlock(Label start, Label end, Label handler, java.lang.String type)` Visits a try catch block.
`void`	`visitTypeInsn(int opcode, java.lang.String desc)` Visits a type instruction.
`void`	`visitVarInsn(int opcode, int var)` Visits a local variable instruction.

Methods inherited from class java.lang.Object

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

Constructor Detail

CodeWriter

protected CodeWriter(ClassWriter cw,
                     boolean computeMaxs)

Constructs a CodeWriter.
Parameters:: cw - the class writer in which the method must be added.; computeMaxs - true if the maximum stack size and number of local variables must be automatically computed.

Method Detail

init

protected void init(int access,
                    java.lang.String name,
                    java.lang.String desc,
                    java.lang.String[] exceptions)

Initializes this CodeWriter to define the bytecode of the specified method.

Parameters:: access - the method's access flags (see Constants).; name - the method's name.; desc - the method's descriptor (see Type).; exceptions - the internal names of the method's exceptions. May be null.