org.eclipse.jdt.core.util
Interface IStackMapFrame

All Known Implementing Classes:

DefaultStackMapFrame, StackMapFrame

public interface IStackMapFrame

Description of a stack map frame as specified in the JVM specifications. This interface may be implemented by clients.

Since:

3.2

Method Summary

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.

Method Detail

getFrameType

int getFrameType()

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

Returns:

the frame type for this entry

getOffsetDelta

int getOffsetDelta()

Answer back the offset delta.

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

Returns:

the offset delta

getNumberOfLocals

int getNumberOfLocals()

Answer back the number of locals.

This is defined only for the frame type FULL_FRAME.

Returns:

the number of locals

getLocals

IVerificationTypeInfo[] getLocals()

Answer back verification infos for the defined locals.

This is defined only for frame types APPEND and FULL_FRAME.

Returns:

verification infos for the defined locals

getNumberOfStackItems

int getNumberOfStackItems()

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.

Returns:

the number of stack items

getStackItems

IVerificationTypeInfo[] getStackItems()

Answer back the verification infos for the stack items.

Returns:

the verification infos for the stack items