org.apache.flex.abc.semantics

Class MethodBodyInfo

java.lang.Object

org.apache.flex.abc.semantics.MethodBodyInfo

public class MethodBodyInfo
extends Object

A representation of a method's method body information.

Field Summary

Fields

Modifier and Type	Field and Description
int	code_len
int	initial_scope
int	max_local
int	max_scope
int	max_slot
int	max_stack

Constructor Summary

Constructors

Constructor and Description
MethodBodyInfo() Construct a new MethodBodyInfo.

Method Summary

Methods

Modifier and Type	Method and Description
int	addExceptionInfo(ExceptionInfo ex)
void	computeFrameCounts(IDiagnosticsVisitor diagnosticsVisitor) Compute a functions's max_stack, max_scope, and slot count.
IBasicBlock	getBlock(Label target) Get the block that the label corresponds to.
IBasicBlock	getBlock(Label target, boolean throwOnError) Get the block that the label corresponds to.
byte[]	getBytecode() Retrieve this method's bytecode.
IFlowgraph	getCfg() Get the method's control flow graph, building it as necessary.
List<ExceptionInfo>	getExceptions()
int	getInitScopeDepth()
InstructionList	getInstructionList()
int	getLocalCount()
int	getMaxScopeDepth()
int	getMaxSlotCount()
int	getMaxStack()
MethodInfo	getMethodInfo()
Traits	getTraits()
boolean	hasBytecode() Has this method been serialized to bytecode?
boolean	hasNewclassInstruction() Does this method body contain a newclass instruction?
void	insn(Instruction instruction)
Instruction	insn(int opcode)
Instruction	insn(int opcode, int immed)
Instruction	insn(int opcode, Object pooledValue)
Instruction	insn(int opcode, Object[] operands)
boolean	isCatchTarget(Label l) Does the given Label reference a catch target?
void	labelCurrent(Label l) Pass through a labelCurrent() request to the resident InstructionList.
void	labelNext(Label l) Pass through a labelNext() request to the resident InstructionList.
void	setBytecode(byte[] bytecode) Set this method's serialized ABC.
void	setInstructionList(InstructionList new_list) Set this method body's InstructionList.
void	setMethodInfo(MethodInfo minfo)
void	setTraits(Traits t) Set the method's traits.

Methods inherited from class java.lang.Object

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

Field Detail

max_stack

public int max_stack

max_scope

public int max_scope

initial_scope

public int initial_scope

max_local

public int max_local

max_slot

public int max_slot

code_len

public int code_len

Constructor Detail

MethodBodyInfo

public MethodBodyInfo()

Construct a new MethodBodyInfo.

Method Detail

getMethodInfo

public MethodInfo getMethodInfo()

setMethodInfo

public void setMethodInfo(MethodInfo minfo)

getTraits

public Traits getTraits()

Returns:

the method's traits.

setTraits

public void setTraits(Traits t)

Set the method's traits.

Parameters:

t - - the method's traits.

setBytecode

public void setBytecode(byte[] bytecode)

Set this method's serialized ABC.

Parameters:

bytecode - - the method's instructions serialized to ABC bytecode.

getBytecode

public byte[] getBytecode()

Retrieve this method's bytecode.

Returns:

previously serialized bytecode.

hasBytecode

public boolean hasBytecode()

Has this method been serialized to bytecode?

Returns:

true if the method's serialized bytecode is set.

getCfg

public IFlowgraph getCfg()

Get the method's control flow graph, building it as necessary.

Returns:

the method's control flow graph.

insn

public Instruction insn(int opcode)

insn

public Instruction insn(int opcode,
               Object[] operands)

insn

public Instruction insn(int opcode,
               Object pooledValue)

insn

public Instruction insn(int opcode,
               int immed)

insn

public void insn(Instruction instruction)

computeFrameCounts

public void computeFrameCounts(IDiagnosticsVisitor diagnosticsVisitor)

Compute a functions's max_stack, max_scope, and slot count.

getMaxStack

public int getMaxStack()

getLocalCount

public int getLocalCount()

getMaxSlotCount

public int getMaxSlotCount()

getMaxScopeDepth

public int getMaxScopeDepth()

addExceptionInfo

public int addExceptionInfo(ExceptionInfo ex)

getInitScopeDepth

public int getInitScopeDepth()

getBlock

public IBasicBlock getBlock(Label target)

Get the block that the label corresponds to. Will throw an IllegalArgumentException if the label does not correspond to any known block.

Parameters:

target - the label you want the block for

Returns:

the block that the label refers to.

getBlock

public IBasicBlock getBlock(Label target,
                   boolean throwOnError)

Get the block that the label corresponds to. Will throw an IllegalArgumentException if the label does not correspond to any known block, and throwOnError is true.

Parameters:

target - the label you want the block for

throwOnError - false if you do not want this method to throw an IllegalArgumentException - in this case the method will return null instead.

Returns:

the block that the label refers to.

getExceptions

public List<ExceptionInfo> getExceptions()

Returns:

exception handlers defined in this method.

isCatchTarget

public boolean isCatchTarget(Label l)

Does the given Label reference a catch target?

Parameters:

l - - the Label of interest.

Returns:

true if the Label references a catch target, either by identity or by position.

setInstructionList

public void setInstructionList(InstructionList new_list)

Set this method body's InstructionList. Used by code generators that build up an InstructionList from smaller parts; not relevant if the InstructionList is built by visitInstruction() calls on this object.

getInstructionList

public InstructionList getInstructionList()

Returns:

this method body's InstructionList.

labelCurrent

public void labelCurrent(Label l)

Pass through a labelCurrent() request to the resident InstructionList.

labelNext

public void labelNext(Label l)

Pass through a labelNext() request to the resident InstructionList.

hasNewclassInstruction

public boolean hasNewclassInstruction()

Does this method body contain a newclass instruction?