Class LookupSwitchInstruction

Method Details

• getStackChange

  public int getStackChange()

  Description copied from class: Instruction

  Return the number of stack positions this instruction pushes or pops during its execution.

  Overrides:

  getStackChange in class Instruction

  Returns:

  0 if the stack is not affected by this instruction, a positive number if it pushes onto the stack, and a negative number if it pops from the stack

• getDefaultTarget

  public Instruction getDefaultTarget()

  Synonymous with JumpInstruction.getTarget().

• setDefaultTarget

  public LookupSwitchInstruction setDefaultTarget(Instruction ins)

  Synonymous with JumpInstruction.setTarget(serp.bytecode.Instruction).

• getDefaultOffset

  public int getDefaultOffset()

  Synonymous with JumpInstruction.getOffset().

• setDefaultOffset

  public LookupSwitchInstruction setDefaultOffset(int offset)

  Synonymous with JumpInstruction.setOffset(int).

• setCases

  public LookupSwitchInstruction setCases(int[] matches, Instruction[] targets)

  Set the match-jumppt pairs for this switch.

  Returns:

  this instruction, for method chaining

• getOffsets

  public int[] getOffsets()

• getMatches

  public int[] getMatches()

  Return the values of the case statements for this switch.

• getTargets

  public Instruction[] getTargets()

  Return the targets of the case statements for this switch.

• addCase

  public LookupSwitchInstruction addCase(int match, Instruction target)

  Add a case to this switch.

  Returns:

  this instruction, for method chaining

• updateTargets

  public void updateTargets()

  Description copied from interface: InstructionPtr

  Use the byte indexes read from the class file to calculate and set references to the target instruction(s) for this ptr. This method will be called after the byte code has been read in for the first time and before it is written after modification.

  Specified by:

  updateTargets in interface InstructionPtr

  Overrides:

  updateTargets in class JumpInstruction

• replaceTarget

  public void replaceTarget(Instruction oldTarget, Instruction newTarget)

  Description copied from interface: InstructionPtr

  Replace the given old, likely invalid, target with a new target. The new target Instruction is guaranteed to be in the same code block as this InstructionPtr.

  Specified by:

  replaceTarget in interface InstructionPtr

  Overrides:

  replaceTarget in class JumpInstruction

• acceptVisit

  public void acceptVisit(BCVisitor visit)

  Description copied from interface: VisitAcceptor

  Accept a visit from a BCVisitor, calling the appropriate methods to notify the visitor that it has entered this entity, and to provide it with the proper callbacks for each sub-entity owned by this one.

  Specified by:

  acceptVisit in interface VisitAcceptor

  Overrides:

  acceptVisit in class JumpInstruction