Package com.tonic.analysis.ssa.type

Enum PrimitiveType

java.lang.Object

java.lang.Enum<PrimitiveType>

com.tonic.analysis.ssa.type.PrimitiveType

All Implemented Interfaces:

IRType, Serializable, Comparable<PrimitiveType>

public enum PrimitiveType
extends Enum<PrimitiveType>
implements IRType

Represents JVM primitive types.

Enum Constant Summary

Enum Constants

Enum Constant	Description
BOOLEAN	Truth value, descriptor Z, treated as integral since the JVM carries it as an int.
BYTE	8-bit signed integer, descriptor B, integral and one slot wide.
CHAR	16-bit unsigned integer, descriptor C, counted as integral here.
DOUBLE	64-bit floating point, descriptor D, occupying two local or stack slots.
FLOAT	32-bit floating point, descriptor F, occupying one slot.
INT	32-bit signed integer, descriptor I, and the width the narrower integral types compute in.
LONG	64-bit signed integer, descriptor J, occupying two local or stack slots.
SHORT	16-bit signed integer, descriptor S, integral and one slot wide.

Method Summary

Modifier and Type	Method	Description
String	getDescriptor()
int	getSize()
boolean	isArray()
boolean	isFloatingPoint()	Checks if this is a floating-point type.
boolean	isIntegral()	Checks if this is an integral type.
boolean	isPrimitive()
boolean	isReference()
boolean	isTwoSlot()
boolean	isVoid()
static PrimitiveType	valueOf(String name)	Returns the enum constant of this type with the specified name.
static PrimitiveType[]	values()	Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

compareTo, equals, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

BOOLEAN

public static final PrimitiveType BOOLEAN

Truth value, descriptor Z, treated as integral since the JVM carries it as an int.

BYTE

public static final PrimitiveType BYTE

8-bit signed integer, descriptor B, integral and one slot wide.

CHAR

public static final PrimitiveType CHAR

16-bit unsigned integer, descriptor C, counted as integral here.

SHORT

public static final PrimitiveType SHORT

16-bit signed integer, descriptor S, integral and one slot wide.

INT

public static final PrimitiveType INT

32-bit signed integer, descriptor I, and the width the narrower integral types compute in.

LONG

public static final PrimitiveType LONG

64-bit signed integer, descriptor J, occupying two local or stack slots.

FLOAT

public static final PrimitiveType FLOAT

32-bit floating point, descriptor F, occupying one slot.

DOUBLE

public static final PrimitiveType DOUBLE

64-bit floating point, descriptor D, occupying two local or stack slots.

Method Detail

values

public static PrimitiveType[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (PrimitiveType c : PrimitiveType.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static PrimitiveType valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

getDescriptor

public String getDescriptor()

Specified by:

getDescriptor in interface IRType

Returns:

the JVM type descriptor for this type

getSize

public int getSize()

Specified by:

getSize in interface IRType

Returns:

the number of stack or local slots a value of this type occupies

isReference

public boolean isReference()

Specified by:

isReference in interface IRType

Returns:

true for object and array types

isPrimitive

public boolean isPrimitive()

Specified by:

isPrimitive in interface IRType

Returns:

true for the eight primitive types

isVoid

public boolean isVoid()

Specified by:

isVoid in interface IRType

Returns:

true for the void type

isArray

public boolean isArray()

Specified by:

isArray in interface IRType

Returns:

true for array types

isTwoSlot

public boolean isTwoSlot()

Specified by:

isTwoSlot in interface IRType

Returns:

true for long and double, which occupy two slots

isIntegral

public boolean isIntegral()

Checks if this is an integral type.

Returns:

true if boolean, byte, char, short, or int

isFloatingPoint

public boolean isFloatingPoint()

Checks if this is a floating-point type.

Returns:

true if float or double