Package org.aspectj.org.eclipse.jdt.internal.core.util

Class StackMapFrame

java.lang.Object

org.aspectj.org.eclipse.jdt.internal.core.util.ClassFileStruct

org.aspectj.org.eclipse.jdt.internal.core.util.StackMapFrame

All Implemented Interfaces:

IStackMapFrame

public class StackMapFrame
extends ClassFileStruct
implements IStackMapFrame

Default implementation of IStackMapFrame

Constructor Summary

Constructors

Constructor	Description
StackMapFrame(byte[] classFileBytes, IConstantPool constantPool, int offset)	Constructor for StackMapFrame.

Method Summary

Modifier and Type	Method	Description
int	getFrameType()	Answer back the frame type for this entry.
IVerificationTypeInfo[]	getLocals()	Answer back verification infos for the defined locals.
int	getNumberOfLocals()	Answer back the number of locals.
int	getNumberOfStackItems()	Answer back the number of stack items
int	getOffsetDelta()	Answer back the offset delta.
IVerificationTypeInfo[]	getStackItems()	Answer back the verification infos for the stack items.

Methods inherited from class org.aspectj.org.eclipse.jdt.internal.core.util.ClassFileStruct

doubleAt, floatAt, i1At, i2At, i4At, i8At, u1At, u2At, u4At, utf8At

Methods inherited from class java.lang.Object

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

Constructor Details

StackMapFrame

public StackMapFrame(byte[] classFileBytes,
 IConstantPool constantPool,
 int offset)
              throws ClassFormatException

Constructor for StackMapFrame.

Throws:

ClassFormatException

Method Details

getFrameType

public int getFrameType()

Description copied from interface: IStackMapFrame

Answer back the frame type for this entry.

Type	Range
SAME	0-63
SAME_LOCALS_1_STACK_ITEM	64-127
SAME_LOCALS_1_STACK_ITEM_EXTENDED	247
CHOP	248-250
SAME_FRAME_EXTENDED	251
APPEND	252-254
FULL_FRAME	255

Specified by:

getFrameType in interface IStackMapFrame

Returns:

the frame type for this entry

getLocals

public IVerificationTypeInfo[] getLocals()

Description copied from interface: IStackMapFrame

Answer back verification infos for the defined locals.

This is defined only for frame types APPEND and FULL_FRAME.

Specified by:

getLocals in interface IStackMapFrame

Returns:

verification infos for the defined locals

getNumberOfLocals

public int getNumberOfLocals()

Description copied from interface: IStackMapFrame

Answer back the number of locals.

This is defined only for the frame type FULL_FRAME.

Specified by:

getNumberOfLocals in interface IStackMapFrame

Returns:

the number of locals

getNumberOfStackItems

public int getNumberOfStackItems()

Description copied from interface: IStackMapFrame

Answer back the number of stack items

This is defined only for the frame types SAME_LOCALS_1_STACK_ITEM, SAME_LOCALS_1_STACK_ITEM_EXTENDED and FULL_FRAME. For SAME_LOCALS_1_STACK_ITEM and SAME_LOCALS_1_STACK_ITEM_EXTENDED, the answer is implicitely 1.

Specified by:

getNumberOfStackItems in interface IStackMapFrame

Returns:

the number of stack items

getOffsetDelta

public int getOffsetDelta()

Description copied from interface: IStackMapFrame

Answer back the offset delta.

This is not defined only for the frame types SAME and SAME_LOCALS_1_STACK_ITEM.

Specified by:

getOffsetDelta in interface IStackMapFrame

Returns:

the offset delta

getStackItems

public IVerificationTypeInfo[] getStackItems()

Description copied from interface: IStackMapFrame

Answer back the verification infos for the stack items.

Specified by:

getStackItems in interface IStackMapFrame

Returns:

the verification infos for the stack items