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java.lang.Objectjavassist.bytecode.StackMapTable.Walker
public static class StackMapTable.Walker
A code walker for a StackMapTable attribute.
Constructor Summary | |
---|---|
StackMapTable.Walker(byte[] data)
Constructs a walker. |
|
StackMapTable.Walker(StackMapTable smt)
Constructs a walker. |
Method Summary | |
---|---|
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 |
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. |
Methods inherited from class java.lang.Object |
---|
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Constructor Detail |
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public StackMapTable.Walker(StackMapTable smt)
smt
- the StackMapTable that this walker
walks around.public StackMapTable.Walker(byte[] data)
data
- the info
field of the
attribute_info
structure.
It can be obtained by get()
in the AttributeInfo
class.Method Detail |
---|
public final int size()
public void parse() throws BadBytecode
BadBytecode
public 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
-
BadBytecode
public 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
.
BadBytecode
public void chopFrame(int pos, int offsetDelta, int k) throws BadBytecode
chop_frame
.
pos
- the position.offsetDelta
- k
- the BadBytecode
public 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 BadBytecode
public 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].tag
localData
- locals[i].cpool_index
or locals[i].offset
stackTags
- stack[i].tag
stackData
- stack[i].cpool_index
or stack[i].offset
BadBytecode
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