org.apache.commons.javaflow.bytecode.transformation.bcel.analyser
Interface Subroutine

public interface Subroutine

This interface defines properties of JVM bytecode subroutines. Note that it is 'abused' to maintain the top-level code in a consistent fashion, too. WARNING! These classes are a fork of the bcel verifier.

Version:

$Id: Subroutine.java 480487 2006-11-29 08:54:42Z bayard $

Author:

Enver Haase

Method Summary

boolean	contains(org.apache.bcel.generic.InstructionHandle inst) Returns if the given InstructionHandle refers to an instruction that is part of this subroutine.
int[]	getAccessedLocalsIndices() Returns an int[] containing the indices of the local variable slots accessed by this Subroutine (read-accessed, write-accessed or both); local variables referenced by subroutines of this subroutine are not included.
org.apache.bcel.generic.InstructionHandle[]	getEnteringJsrInstructions() Returns all the JsrInstructions that have the first instruction of this subroutine as their target.
org.apache.bcel.generic.InstructionHandle[]	getInstructions() Returns all instructions that together form this subroutine.
org.apache.bcel.generic.InstructionHandle	getLeavingRET() Returns the one and only RET that leaves the subroutine.
int[]	getRecursivelyAccessedLocalsIndices() Returns an int[] containing the indices of the local variable slots accessed by this Subroutine (read-accessed, write-accessed or both); local variables referenced by subroutines of this subroutine are included.
Subroutine[]	subSubs() Returns the subroutines that are directly called from this subroutine.

Method Detail

getEnteringJsrInstructions

org.apache.bcel.generic.InstructionHandle[] getEnteringJsrInstructions()

Returns all the JsrInstructions that have the first instruction of this subroutine as their target. Must not be invoked on the 'top-level subroutine'.

getLeavingRET

org.apache.bcel.generic.InstructionHandle getLeavingRET()

Returns the one and only RET that leaves the subroutine. Note that JustIce has a pretty rigid notion of a subroutine. Must not be invoked on the 'top-level subroutine'.

See Also:

org.apache.bcel.verifier.structurals.Subroutines

getInstructions

org.apache.bcel.generic.InstructionHandle[] getInstructions()

Returns all instructions that together form this subroutine. Note that an instruction is part of exactly one subroutine (the top-level code is considered to be a special subroutine) - else it is not reachable at all (dead code).

contains

boolean contains(org.apache.bcel.generic.InstructionHandle inst)

Returns if the given InstructionHandle refers to an instruction that is part of this subroutine. This is a convenience method that saves iteration over the InstructionHandle objects returned by getInstructions().

See Also:

getInstructions()

getAccessedLocalsIndices

int[] getAccessedLocalsIndices()

Returns an int[] containing the indices of the local variable slots accessed by this Subroutine (read-accessed, write-accessed or both); local variables referenced by subroutines of this subroutine are not included.

See Also:

getRecursivelyAccessedLocalsIndices()

getRecursivelyAccessedLocalsIndices

int[] getRecursivelyAccessedLocalsIndices()

Returns an int[] containing the indices of the local variable slots accessed by this Subroutine (read-accessed, write-accessed or both); local variables referenced by subroutines of this subroutine are included.

See Also:

getAccessedLocalsIndices()

subSubs

Subroutine[] subSubs()

Returns the subroutines that are directly called from this subroutine.