Package com.tonic.analysis.instruction

Enum CompareInstruction.CompareType

java.lang.Object

java.lang.Enum<CompareInstruction.CompareType>

com.tonic.analysis.instruction.CompareInstruction.CompareType

All Implemented Interfaces:

Serializable, Comparable<CompareInstruction.CompareType>

Enclosing class:

CompareInstruction

public static enum CompareInstruction.CompareType
extends Enum<CompareInstruction.CompareType>

The compare operation kinds, each pairing a JVM opcode with its mnemonic.

Enum Constant Summary

Enum Constants

Enum Constant	Description
DCMPG	Compares two doubles, pushing 1 when either operand is NaN.
DCMPL	Compares two doubles, pushing -1 when either operand is NaN.
FCMPG	Compares two floats, pushing 1 when either operand is NaN.
FCMPL	Compares two floats, pushing -1 when either operand is NaN.
LCMP	Compares two longs, pushing -1, 0, or 1; longs have no NaN, so there is only one variant.

Method Summary

Modifier and Type	Method	Description
static CompareInstruction.CompareType	fromOpcode(int opcode)	Looks up the compare type for a JVM opcode.
String	getMnemonic()
int	getOpcode()
static CompareInstruction.CompareType	valueOf(String name)	Returns the enum constant of this type with the specified name.
static CompareInstruction.CompareType[]	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

LCMP

public static final CompareInstruction.CompareType LCMP

Compares two longs, pushing -1, 0, or 1; longs have no NaN, so there is only one variant.

FCMPL

public static final CompareInstruction.CompareType FCMPL

Compares two floats, pushing -1 when either operand is NaN.

FCMPG

public static final CompareInstruction.CompareType FCMPG

Compares two floats, pushing 1 when either operand is NaN.

DCMPL

public static final CompareInstruction.CompareType DCMPL

Compares two doubles, pushing -1 when either operand is NaN.

DCMPG

public static final CompareInstruction.CompareType DCMPG

Compares two doubles, pushing 1 when either operand is NaN.

Method Detail

values

public static CompareInstruction.CompareType[] 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 (CompareInstruction.CompareType c : CompareInstruction.CompareType.values())
    System.out.println(c);

Returns:

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

valueOf

public static CompareInstruction.CompareType 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

getOpcode

public int getOpcode()

Returns:

the opcode

getMnemonic

public String getMnemonic()

Returns:

the mnemonic

fromOpcode

public static CompareInstruction.CompareType fromOpcode(int opcode)

Looks up the compare type for a JVM opcode.

Parameters:

opcode - the JVM opcode

Returns:

the matching type, or null if the opcode is not a compare opcode