Package com.android.dx.rop.code

Class PlainInsn

java.lang.Object
com.android.dx.rop.code.Insn
com.android.dx.rop.code.PlainInsn
All Implemented Interfaces:
ToHuman
public final class PlainInsn extends Insn
Plain instruction, which has no embedded data and which cannot possibly throw an exception.

  • Constructor Details

    • PlainInsn

      public PlainInsn(Rop opcode, SourcePosition position, RegisterSpec result, RegisterSpecList sources)
      Constructs an instance.
      Parameters:
      opcode - non-null; the opcode
      position - non-null; source position
      result - null-ok; spec for the result, if any
      sources - non-null; specs for all the sources

    • PlainInsn

      public PlainInsn(Rop opcode, SourcePosition position, RegisterSpec result, RegisterSpec source)
      Constructs a single-source instance.
      Parameters:
      opcode - non-null; the opcode
      position - non-null; source position
      result - null-ok; spec for the result, if any
      source - non-null; spec for the source

  • Method Details

    • getCatches

      public TypeList getCatches()
      Gets the list of possibly-caught exceptions. This returns StdTypeList.EMPTY if this instruction has no handlers, which can be either if this instruction can't possibly throw or if it merely doesn't handle any of its possible exceptions. To determine whether this instruction can throw, use Insn.canThrow().
      Specified by:
      getCatches in class Insn
      Returns:
      non-null; the catches list

    • accept

      public void accept(Insn.Visitor visitor)
      Calls the appropriate method on the given visitor, depending on the class of this instance. Subclasses must override this.
      Specified by:
      accept in class Insn
      Parameters:
      visitor - non-null; the visitor to call on

    • withAddedCatch

      public Insn withAddedCatch(Type type)
      Returns an instance that is just like this one, except that it has a catch list with the given item appended to the end. This method throws an exception if this instance can't possibly throw. To determine whether this instruction can throw, use Insn.canThrow().
      Specified by:
      withAddedCatch in class Insn
      Parameters:
      type - non-null; type to append to the catch list
      Returns:
      non-null; an appropriately-constructed instance

    • withRegisterOffset

      public Insn withRegisterOffset(int delta)
      Returns an instance that is just like this one, except that all register references have been offset by the given delta.
      Specified by:
      withRegisterOffset in class Insn
      Parameters:
      delta - the amount to offset register references by
      Returns:
      non-null; an appropriately-constructed instance

    • withSourceLiteral

      public Insn withSourceLiteral()
      Returns an instance that is just like this one, except that, if possible, the insn is converted into a version in which a source (if it is a constant) is represented directly rather than as a register reference. this is returned in cases where the translation is not possible.
      Overrides:
      withSourceLiteral in class Insn
      Returns:
      non-null; an appropriately-constructed instance

    • withNewRegisters

      public Insn withNewRegisters(RegisterSpec result, RegisterSpecList sources)
      Returns an instance that is just like this one, except with new result and source registers.
      Specified by:
      withNewRegisters in class Insn
      Parameters:
      result - null-ok; new result register
      sources - non-null; new sources registers
      Returns:
      non-null; an appropriately-constructed instance