Package com.android.dx.cf.code

Class ReturnAddress

java.lang.Object
com.android.dx.cf.code.ReturnAddress
All Implemented Interfaces:
TypeBearer, ToHuman
public final class ReturnAddress extends Object implements TypeBearer
Representation of a subroutine return address. In Java verification, somewhat counterintuitively, the salient bit of information you need to know about a return address is the start address of the subroutine being returned from, not the address being returned to, so that's what instances of this class hang onto.

  • Constructor Details

    • ReturnAddress

      public ReturnAddress(int subroutineAddress)
      Constructs an instance.
      Parameters:
      subroutineAddress - >= 0; the start address of the subroutine being returned from

  • Method Details

    • toString

      public String toString()
      Overrides:
      toString in class Object

    • toHuman

      public String toHuman()
      Return the "human" string form of this instance. This is generally less "debuggy" than toString().
      Specified by:
      toHuman in interface ToHuman
      Returns:
      non-null; the human string form

    • getType

      public Type getType()
      Gets the type associated with this instance.
      Specified by:
      getType in interface TypeBearer
      Returns:
      non-null; the type

    • getFrameType

      public TypeBearer getFrameType()
      Gets the frame type corresponding to this type. This method returns this, except if Type.isIntlike() on the underlying type returns true but the underlying type is not in fact Type.INT, in which case this method returns an instance whose underlying type is INT.
      Specified by:
      getFrameType in interface TypeBearer
      Returns:
      non-null; the frame type for this instance

    • getBasicType

      public int getBasicType()
      Gets the basic type corresponding to this instance.
      Specified by:
      getBasicType in interface TypeBearer
      Returns:
      the basic type; one of the BT_* constants defined by Type

    • getBasicFrameType

      public int getBasicFrameType()
      Gets the basic type corresponding to this instance's frame type. This is equivalent to getFrameType().getBasicType(), and is the same as calling getFrameType() unless this instance is an int-like type, in which case this method returns BT_INT.
      Specified by:
      getBasicFrameType in interface TypeBearer
      Returns:
      the basic frame type; one of the BT_* constants defined by Type
      See Also:

    • isConstant

      public boolean isConstant()
      Returns whether this instance represents a constant value.
      Specified by:
      isConstant in interface TypeBearer
      Returns:
      true if this instance represents a constant value and false if not

    • equals

      public boolean equals(Object other)
      Overrides:
      equals in class Object

    • hashCode

      public int hashCode()
      Overrides:
      hashCode in class Object

    • getSubroutineAddress

      public int getSubroutineAddress()
      Gets the subroutine address.
      Returns:
      >= 0; the subroutine address