| java.lang.Object
 gnu.bytecode.Label
gnu.bytecode.CodeFragment
| CodeFragment | | public class CodeFragment extends Label (Code) | | A sequence of bytecode instructions belonging to a method's Code attribute.
This provides a hook for re-arranging instruction sequences.
It currently has limited functionality - no switch instructions,
no non-relative jumps, etc.
In the future this may be the basis for generating better code (e.g.
avoiding needless jumps). Look at gcc/java/jcf-write.c for ideas.
CodeFragment extends Label because it can be viewed as a label with
some code following it.
|
| Field Summary | |
| int | handlerIndex
If handlerIndex >= 0, it is the index in the exception_table
for which this fragment is the handler. | | byte[] | insns
| | int | length
Length of code fragments (in instruction bytes), after genetaing code. | | short[] | linenumbers
Pairs of (relative PC, linenumber). | | CodeFragment | next
| | boolean | unreachable_save
Used to save value of unreachable_here from the CodeAttr. |
| handlerIndex | | int handlerIndex(Code) | | If handlerIndex >= 0, it is the index in the exception_table
for which this fragment is the handler.
|
| length | | int length(Code) | | Length of code fragments (in instruction bytes), after genetaing code.
(While generating code for this fragment, length is the start PC.)
|
| linenumbers | | short[] linenumbers(Code) | | Pairs of (relative PC, linenumber).
|
| unreachable_save | | boolean unreachable_save(Code) | | Used to save value of unreachable_here from the CodeAttr.
|
|
|