public static class StackMapTable.Walker extends Object
| Constructor and Description |
|---|
Walker(byte[] data)
Constructs a walker.
|
Walker(StackMapTable smt)
Constructs a walker.
|
| Modifier and Type | Method and Description |
|---|---|
void |
appendFrame(int pos,
int offsetDelta,
int[] tags,
int[] data)
Invoked if the visited frame is a
append_frame. |
void |
chopFrame(int pos,
int offsetDelta,
int k)
Invoked if the visited frame is a
chop_frame. |
void |
fullFrame(int pos,
int offsetDelta,
int[] localTags,
int[] localData,
int[] stackTags,
int[] stackData)
Invoked if the visited frame is
full_frame. |
void |
objectOrUninitialized(int tag,
int data,
int pos)
Invoked if
Object_variable_info
or Uninitialized_variable_info is visited. |
void |
parse()
Visits each entry of the stack map frames.
|
void |
sameFrame(int pos,
int offsetDelta)
Invoked if the visited frame is a
same_frame or
a same_frame_extended. |
void |
sameLocals(int pos,
int offsetDelta,
int stackTag,
int stackData)
Invoked if the visited frame is a
same_locals_1_stack_item_frame
or a same_locals_1_stack_item_frame_extended. |
int |
size()
Returns the number of the entries.
|
public Walker(StackMapTable smt)
smt - the StackMapTable that this walker
walks around.public Walker(byte[] data)
data - the info field of the
attribute_info structure.
It can be obtained by get()
in the AttributeInfo class.public final int size()
public void parse()
throws BadBytecode
BadBytecodepublic void sameFrame(int pos,
int offsetDelta)
throws BadBytecode
same_frame or
a same_frame_extended.pos - the position of this frame in the info
field of attribute_info structure.offsetDelta - BadBytecodepublic void sameLocals(int pos,
int offsetDelta,
int stackTag,
int stackData)
throws BadBytecode
same_locals_1_stack_item_frame
or a same_locals_1_stack_item_frame_extended.pos - the position.offsetDelta - stackTag - stack[0].tag.stackData - stack[0].cpool_index
if the tag is OBJECT,
or stack[0].offset
if the tag is UNINIT.BadBytecodepublic void chopFrame(int pos,
int offsetDelta,
int k)
throws BadBytecode
chop_frame.pos - the position.offsetDelta - k - the k last locals are absent.BadBytecodepublic void appendFrame(int pos,
int offsetDelta,
int[] tags,
int[] data)
throws BadBytecode
append_frame.pos - the position.offsetDelta - tags - locals[i].tag.data - locals[i].cpool_index
or locals[i].offset.BadBytecodepublic void fullFrame(int pos,
int offsetDelta,
int[] localTags,
int[] localData,
int[] stackTags,
int[] stackData)
throws BadBytecode
full_frame.pos - the position.offsetDelta - localTags - locals[i].taglocalData - locals[i].cpool_index
or locals[i].offsetstackTags - stack[i].tagstackData - stack[i].cpool_index
or stack[i].offsetBadBytecodepublic void objectOrUninitialized(int tag,
int data,
int pos)
Object_variable_info
or Uninitialized_variable_info is visited.tag - OBJECT or UNINIT.data - the value of cpool_index or offset.pos - the position of cpool_index or offset.Copyright © 2016 Shigeru Chiba, www.javassist.org. All Rights Reserved.