Top Description Fields Constructors Methods
org.droidparts.dexmaker.dx.rop.cst

public final Class CstKnownNull

extends CstLiteralBits
Class Inheritance
Imports
org.droidparts.dexmaker.dx.rop.type.Type

Constant type to represent a known-null value.

Field Summary

Modifier and TypeField and Description
public static final CstKnownNull
THE_ONE

non-null; unique instance of this class

Constructor Summary

AccessConstructor and Description
private
CstKnownNull()

Constructs an instance.

Method Summary

Modifier and TypeMethod and Description
protected int
compareTo0(Constant
non-null; the instance to compare to
other
)

Implements abstract org.droidparts.dexmaker.dx.rop.cst.Constant.compareTo0.

Compare the values of this and another instance, which are guaranteed to be of the same class.
public boolean
equals(Object
the reference object with which to compare.
other
)

Overrides java.lang.Object.equals.

Indicates whether some other object is "equal to" this one.
public boolean
fitsInInt()

Implements abstract org.droidparts.dexmaker.dx.rop.cst.CstLiteralBits.fitsInInt.

Returns whether or not this instance's value may be accurately represented as an int.
public int
getIntBits()

Implements abstract org.droidparts.dexmaker.dx.rop.cst.CstLiteralBits.getIntBits.

Gets the value as int bits.
public long
getLongBits()

Implements abstract org.droidparts.dexmaker.dx.rop.cst.CstLiteralBits.getLongBits.

Gets the value as long bits.
public Type
getType()

Implements org.droidparts.dexmaker.dx.rop.type.TypeBearer.getType.

Gets the type associated with this instance.
public int
hashCode()

Overrides java.lang.Object.hashCode.

Returns a hash code value for this object.
public boolean
isCategory2()

Implements abstract org.droidparts.dexmaker.dx.rop.cst.Constant.isCategory2.

Returns true if this instance is a category-2 constant, meaning it takes up two slots in the constant pool, or false if this instance is category-1.
public String
toHuman()

Implements org.droidparts.dexmaker.dx.util.ToHuman.toHuman.

Return the "human" string form of this instance.
public String
toString()

Overrides java.lang.Object.toString.

Returns a string representation of the object.
public String
typeName()

Implements abstract org.droidparts.dexmaker.dx.rop.cst.Constant.typeName.

Returns the human name for the particular type of constant this instance is.
Inherited from org.droidparts.dexmaker.dx.rop.cst.CstLiteralBits:
fitsIn16BitsfitsIn8Bits

Field Detail

THE_ONEback to summary
public static final CstKnownNull THE_ONE

non-null; unique instance of this class

Constructor Detail

CstKnownNullback to summary
private CstKnownNull()

Constructs an instance. This class is not publicly instantiable. Use THE_ONE.

Method Detail

compareTo0back to summary
protected int compareTo0(Constant other)

Implements abstract org.droidparts.dexmaker.dx.rop.cst.Constant.compareTo0.

Doc from org.droidparts.dexmaker.dx.rop.cst.Constant.compareTo0.

Compare the values of this and another instance, which are guaranteed to be of the same class. Subclasses must implement this.

Parameters
other:Constant

non-null; the instance to compare to

Returns:int

-1, 0, or 1, as usual for a comparison

Annotations
@Override
equalsback to summary
public boolean equals(Object other)

Overrides java.lang.Object.equals.

Doc from java.lang.Object.equals.

Indicates whether some other object is "equal to" this one.

The equals method implements an equivalence relation on non-null object references:

  • It is reflexive: for any non-null reference value x, x.equals(x) should return true.
  • It is symmetric: for any non-null reference values x and y, x.equals(y) should return true if and only if y.equals(x) returns true.
  • It is transitive: for any non-null reference values x, y, and z, if x.equals(y) returns true and y.equals(z) returns true, then x.equals(z) should return true.
  • It is consistent: for any non-null reference values x and y, multiple invocations of x.equals(y) consistently return true or consistently return false, provided no information used in equals comparisons on the objects is modified.
  • For any non-null reference value x, x.equals(null) should return false.

An equivalence relation partitions the elements it operates on into equivalence classes; all the members of an equivalence class are equal to each other. Members of an equivalence class are substitutable for each other, at least for some purposes.

Parameters
other:Object

the reference object with which to compare.

Returns:boolean

true if this object is the same as the obj argument; false otherwise.

Annotations
@Override
fitsInIntback to summary
public boolean fitsInInt()

Implements abstract org.droidparts.dexmaker.dx.rop.cst.CstLiteralBits.fitsInInt.

Doc from org.droidparts.dexmaker.dx.rop.cst.CstLiteralBits.fitsInInt.

Returns whether or not this instance's value may be accurately represented as an int. The rule is that if there is an int which may be sign-extended to yield this instance's value, then this method returns true. Otherwise, it returns false.

Returns:boolean

true iff this instance fits in an int

Annotations
@Override
getIntBitsback to summary
public int getIntBits()

Implements abstract org.droidparts.dexmaker.dx.rop.cst.CstLiteralBits.getIntBits.

Doc from org.droidparts.dexmaker.dx.rop.cst.CstLiteralBits.getIntBits.

Gets the value as int bits. If this instance contains more bits than fit in an int, then this returns only the low-order bits. As "literal bits," a known-null is always represented as the number zero.

Returns:int

the bits

Annotations
@Override
getLongBitsback to summary
public long getLongBits()

Implements abstract org.droidparts.dexmaker.dx.rop.cst.CstLiteralBits.getLongBits.

Doc from org.droidparts.dexmaker.dx.rop.cst.CstLiteralBits.getLongBits.

Gets the value as long bits. If this instance contains fewer bits than fit in a long, then the result of this method is the sign extension of the value. As "literal bits," a known-null is always represented as the number zero.

Returns:long

the bits

Annotations
@Override
getTypeback to summary
public Type getType()

Implements org.droidparts.dexmaker.dx.rop.type.TypeBearer.getType.

Doc from org.droidparts.dexmaker.dx.rop.type.TypeBearer.getType.

Gets the type associated with this instance.

Returns:Type

non-null; the type

hashCodeback to summary
public int hashCode()

Overrides java.lang.Object.hashCode.

Doc from java.lang.Object.hashCode.

Returns a hash code value for this object. This method is supported for the benefit of hash tables such as those provided by java.util.HashMap.

The general contract of hashCode is:

  • Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
  • If two objects are equal according to the equals method, then calling the hashCode method on each of the two objects must produce the same integer result.
  • It is not required that if two objects are unequal according to the equals method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hash tables.
Returns:int

a hash code value for this object

Annotations
@Override
isCategory2back to summary
public boolean isCategory2()

Implements abstract org.droidparts.dexmaker.dx.rop.cst.Constant.isCategory2.

Doc from org.droidparts.dexmaker.dx.rop.cst.Constant.isCategory2.

Returns true if this instance is a category-2 constant, meaning it takes up two slots in the constant pool, or false if this instance is category-1.

Returns:boolean

true iff this instance is category-2

Annotations
@Override
toHumanback to summary
public String toHuman()

Implements org.droidparts.dexmaker.dx.util.ToHuman.toHuman.

Doc from org.droidparts.dexmaker.dx.util.ToHuman.toHuman.

Return the "human" string form of this instance. This is generally less "debuggy" than toString().

Returns:String

non-null; the human string form

toStringback to summary
public String toString()

Overrides java.lang.Object.toString.

Doc from java.lang.Object.toString.

Returns a string representation of the object.

Returns:String

a string representation of the object

Annotations
@Override
typeNameback to summary
public String typeName()

Implements abstract org.droidparts.dexmaker.dx.rop.cst.Constant.typeName.

Doc from org.droidparts.dexmaker.dx.rop.cst.Constant.typeName.

Returns the human name for the particular type of constant this instance is.

Returns:String

non-null; the name

Annotations
@Override