SubLocalVarGen

Type Parameters:: V - the class of p-code variable node in the use-def graph

All Superinterfaces:: LocalVarGen<V>, ValGen<V>, VarGen<V>

All Known Implementing Classes:: SubInputVarGen, SubLocalOutVarGen

public interface SubLocalVarGen<V extends JitVarnodeVar> extends LocalVarGen<V>

A generator for a subpiece of a local variable

Nested Class Summary

Nested classes/interfaces inherited from interface ghidra.pcode.emu.jit.gen.var.VarGen
VarGen.BlockTransition<THIS extends JitCompiledPassage>
Method Summary

Modifier and Type

Method

Description

int

byteOffset()

Returns .

default VarHandler

getHandler(JitCodeGenerator<?> gen, V v)

Get the handler for a given p-code variable

int

maxByteSize()

Returns the size of the subpiece.

default ValGen<V>

subpiece(int byteOffset, int maxByteSize)

Create a generator for a PcodeOp.SUBPIECE of a value.

Methods inherited from interface ghidra.pcode.emu.jit.gen.var.LocalVarGen
genReadLegToStack, genReadToArray, genReadToBool, genReadToOpnd, genReadToStack, genValInit

Methods inherited from interface ghidra.pcode.emu.jit.gen.var.VarGen
genWriteFromArray, genWriteFromOpnd, genWriteFromStack

Method Details
- byteOffset
  
  int byteOffset()
  
  Returns . the number of bytes to the right of the subpiece
  
  Returns:
- maxByteSize
  
  int maxByteSize()
  
  Returns the size of the subpiece.
  
  Returns:
  
  the size of the subpiece
- getHandler
  
  default VarHandler getHandler(JitCodeGenerator<?> gen, V v)
  
  Description copied from interface: LocalVarGen
  
  Get the handler for a given p-code variable
  This is made to be overridden for the implementation of subpiece handlers.
  
  Specified by:
  
  getHandler in interface LocalVarGen<V extends JitVarnodeVar>
  
  Parameters:
  
  gen - the code generator
  
  v - the value
  
  Returns:
  
  the handler
- subpiece
  
  default ValGen<V> subpiece(int byteOffset, int maxByteSize)
  
  Description copied from interface: ValGen
  
  Create a generator for a PcodeOp.SUBPIECE of a value.
  
  Specified by:
  
  subpiece in interface ValGen<V extends JitVarnodeVar>
  
  Parameters:
  
  byteOffset - the number of least-significant bytes to remove
  
  maxByteSize - the maximum size of the resulting variable. In general, a subpiece should never exceed the size of the parent varnode, but if it does, this will truncate that excess.
  
  Returns:
  
  the resulting subpiece generator