org.apache.xalan.xsltc.compiler.util
Class MethodGenerator

java.lang.Object
  |
  +--org.apache.bcel.classfile.AccessFlags
        |
        +--org.apache.bcel.generic.FieldGenOrMethodGen
              |
              +--org.apache.bcel.generic.MethodGen
                    |
                    +--org.apache.xalan.xsltc.compiler.util.MethodGenerator

Direct Known Subclasses:

AttributeSetMethodGenerator, CompareGenerator, MatchGenerator, NamedMethodGenerator, RtMethodGenerator, TestGenerator

public class MethodGenerator

extends org.apache.bcel.generic.MethodGen

implements Constants

Constructor Summary

MethodGenerator(int access_flags, org.apache.bcel.generic.Type return_type, org.apache.bcel.generic.Type[] arg_types, java.lang.String[] arg_names, java.lang.String method_name, java.lang.String class_name, org.apache.bcel.generic.InstructionList il, org.apache.bcel.generic.ConstantPoolGen cpg)

Method Summary

void	addInstructionList(Pattern pattern, org.apache.bcel.generic.InstructionList ilist) Add a pre-compiled pattern to this mode.
org.apache.bcel.generic.LocalVariableGen	addLocalVariable(java.lang.String name, org.apache.bcel.generic.Type type, org.apache.bcel.generic.InstructionHandle start, org.apache.bcel.generic.InstructionHandle end) Allocates a local variable.
org.apache.bcel.generic.LocalVariableGen	addLocalVariable2(java.lang.String name, org.apache.bcel.generic.Type type, org.apache.bcel.generic.InstructionHandle start)
org.apache.bcel.generic.Instruction	attribute()
org.apache.bcel.generic.Instruction	endDocument()
org.apache.bcel.generic.Instruction	endElement()
org.apache.bcel.generic.InstructionList	getInstructionList(Pattern pattern) Get the instruction list for a pre-compiled pattern.
int	getLocalIndex(java.lang.String name)
org.apache.bcel.generic.LocalVariableGen	getLocalVariable(java.lang.String name)
org.apache.bcel.generic.Instruction	loadContextNode() by default context node is the same as current node.
org.apache.bcel.generic.Instruction	loadCurrentNode()
org.apache.bcel.generic.Instruction	loadDOM()
org.apache.bcel.generic.Instruction	loadHandler()
org.apache.bcel.generic.Instruction	loadIterator()
void	markChunkEnd() Mark the end of an outlineable chunk of code.
void	markChunkStart() Mark the end of the method's InstructionList as the start of an outlineable chunk of code.
org.apache.bcel.generic.Instruction	namespace()
org.apache.bcel.generic.Instruction	nextNode()
org.apache.bcel.classfile.Method[]	outlineChunks(ClassGenerator classGen, int originalMethodSize) Breaks up the IL for this MethodGenerator into separate outlined methods so that no method exceeds the 64KB limit on the length of the byte code associated with a method.
void	removeLocalVariable(org.apache.bcel.generic.LocalVariableGen lvg)
org.apache.bcel.generic.Instruction	reset()
void	setMaxLocals()
org.apache.bcel.generic.Instruction	setStartNode()
org.apache.bcel.generic.Instruction	startDocument()
org.apache.bcel.generic.Instruction	startElement()
org.apache.bcel.generic.Instruction	storeContextNode()
org.apache.bcel.generic.Instruction	storeCurrentNode()
org.apache.bcel.generic.Instruction	storeDOM()
org.apache.bcel.generic.Instruction	storeHandler()
org.apache.bcel.generic.Instruction	storeIterator()
org.apache.bcel.generic.Instruction	uniqueAttribute()

Methods inherited from class org.apache.bcel.generic.MethodGen

addCodeAttribute, addException, addExceptionHandler, addLineNumber, addLocalVariable, addObserver, copy, getArgumentName, getArgumentNames, getArgumentType, getArgumentTypes, getClassName, getCodeAttributes, getExceptionHandlers, getExceptions, getInstructionList, getLineNumbers, getLineNumberTable, getLocalVariables, getLocalVariableTable, getMaxLocals, getMaxStack, getMaxStack, getMethod, getReturnType, getSignature, removeCodeAttribute, removeCodeAttributes, removeException, removeExceptionHandler, removeExceptionHandlers, removeExceptions, removeLineNumber, removeLineNumbers, removeLocalVariables, removeNOPs, removeObserver, setArgumentName, setArgumentNames, setArgumentType, setArgumentTypes, setClassName, setInstructionList, setMaxLocals, setMaxStack, setMaxStack, setReturnType, stripAttributes, toString, update

Methods inherited from class org.apache.bcel.generic.FieldGenOrMethodGen

addAttribute, clone, getAttributes, getConstantPool, getName, getType, removeAttribute, removeAttributes, setConstantPool, setName, setType

Methods inherited from class org.apache.bcel.classfile.AccessFlags

getAccessFlags, isAbstract, isAbstract, isFinal, isFinal, isInterface, isInterface, isNative, isNative, isPrivate, isPrivate, isProtected, isProtected, isPublic, isPublic, isStatic, isStatic, isStrictfp, isStrictfp, isSynchronized, isSynchronized, isTransient, isTransient, isVolatile, isVolatile, setAccessFlags

Methods inherited from class java.lang.Object

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

Constructor Detail

MethodGenerator

public MethodGenerator(int access_flags,
                       org.apache.bcel.generic.Type return_type,
                       org.apache.bcel.generic.Type[] arg_types,
                       java.lang.String[] arg_names,
                       java.lang.String method_name,
                       java.lang.String class_name,
                       org.apache.bcel.generic.InstructionList il,
                       org.apache.bcel.generic.ConstantPoolGen cpg)

Method Detail

addLocalVariable

public org.apache.bcel.generic.LocalVariableGen addLocalVariable(java.lang.String name,
                                                                 org.apache.bcel.generic.Type type,
                                                                 org.apache.bcel.generic.InstructionHandle start,
                                                                 org.apache.bcel.generic.InstructionHandle end)

Allocates a local variable. If the slot allocator has already been initialized, then call addLocalVariable2() so that the new variable is known to the allocator. Failing to do this may cause the allocator to return a slot that is already in use.

Overrides:

addLocalVariable in class org.apache.bcel.generic.MethodGen

addLocalVariable2

public org.apache.bcel.generic.LocalVariableGen addLocalVariable2(java.lang.String name,
                                                                  org.apache.bcel.generic.Type type,
                                                                  org.apache.bcel.generic.InstructionHandle start)

removeLocalVariable

public void removeLocalVariable(org.apache.bcel.generic.LocalVariableGen lvg)

Overrides:

removeLocalVariable in class org.apache.bcel.generic.MethodGen

loadDOM

public org.apache.bcel.generic.Instruction loadDOM()

storeDOM

public org.apache.bcel.generic.Instruction storeDOM()

storeHandler

public org.apache.bcel.generic.Instruction storeHandler()

loadHandler

public org.apache.bcel.generic.Instruction loadHandler()

storeIterator

public org.apache.bcel.generic.Instruction storeIterator()

loadIterator

public org.apache.bcel.generic.Instruction loadIterator()

setStartNode

public final org.apache.bcel.generic.Instruction setStartNode()

reset

public final org.apache.bcel.generic.Instruction reset()

nextNode

public final org.apache.bcel.generic.Instruction nextNode()

startElement

public final org.apache.bcel.generic.Instruction startElement()

endElement

public final org.apache.bcel.generic.Instruction endElement()

startDocument

public final org.apache.bcel.generic.Instruction startDocument()

endDocument

public final org.apache.bcel.generic.Instruction endDocument()

attribute

public final org.apache.bcel.generic.Instruction attribute()

uniqueAttribute

public final org.apache.bcel.generic.Instruction uniqueAttribute()

namespace

public final org.apache.bcel.generic.Instruction namespace()

loadCurrentNode

public org.apache.bcel.generic.Instruction loadCurrentNode()

storeCurrentNode

public org.apache.bcel.generic.Instruction storeCurrentNode()

loadContextNode

public org.apache.bcel.generic.Instruction loadContextNode()

by default context node is the same as current node. MK437

storeContextNode

public org.apache.bcel.generic.Instruction storeContextNode()

getLocalIndex

public int getLocalIndex(java.lang.String name)

getLocalVariable

public org.apache.bcel.generic.LocalVariableGen getLocalVariable(java.lang.String name)

setMaxLocals

public void setMaxLocals()

Overrides:

setMaxLocals in class org.apache.bcel.generic.MethodGen

addInstructionList

public void addInstructionList(Pattern pattern,
                               org.apache.bcel.generic.InstructionList ilist)

Add a pre-compiled pattern to this mode.

getInstructionList

public org.apache.bcel.generic.InstructionList getInstructionList(Pattern pattern)

Get the instruction list for a pre-compiled pattern. Used by test sequences to avoid compiling patterns more than once.

outlineChunks

public org.apache.bcel.classfile.Method[] outlineChunks(ClassGenerator classGen,
                                                        int originalMethodSize)

Breaks up the IL for this MethodGenerator into separate outlined methods so that no method exceeds the 64KB limit on the length of the byte code associated with a method.

Parameters:

classGen - The ClassGen with which the generated methods will be associated

originalMethodSize - The number of bytes of bytecode represented by the InstructionList of this method

Returns:

an array of the outlined Methods and the original method itself

markChunkStart

public void markChunkStart()

Mark the end of the method's InstructionList as the start of an outlineable chunk of code. The outlineable chunk begins after the InstructionHandle that is at the end of the method's InstructionList, or at the start of the method if the InstructionList is empty. See OutlineableChunkStart for more information.

markChunkEnd

public void markChunkEnd()

Mark the end of an outlineable chunk of code. See OutlineableChunkStart for more information.