Package com.tonic.analysis.instruction

Enum ConditionalBranchInstruction.BranchType

java.lang.Object

java.lang.Enum<ConditionalBranchInstruction.BranchType>

com.tonic.analysis.instruction.ConditionalBranchInstruction.BranchType

All Implemented Interfaces:

Serializable, Comparable<ConditionalBranchInstruction.BranchType>

Enclosing class:

ConditionalBranchInstruction

public static enum ConditionalBranchInstruction.BranchType
extends Enum<ConditionalBranchInstruction.BranchType>

The conditional branch kinds, each pairing a JVM opcode with its mnemonic.

Enum Constant Summary

Enum Constants

Enum Constant	Description
IF_ACMPEQ	Branches when two popped references point at the same object.
IF_ACMPNE	Branches when two popped references do not point at the same object.
IF_ICMPEQ	Branches when two popped ints are equal.
IF_ICMPGE	Branches when the first of two popped ints is >= the second.
IF_ICMPGT	Branches when the first of two popped ints is > the second.
IF_ICMPLE	Branches when the first of two popped ints is <= the second.
IF_ICMPLT	Branches when the first of two popped ints is < the second.
IF_ICMPNE	Branches when two popped ints differ.
IFEQ	Branches when the popped int is zero, the usual test for a false boolean.
IFGE	Branches when the popped int is >= 0.
IFGT	Branches when the popped int is > 0.
IFLE	Branches when the popped int is <= 0.
IFLT	Branches when the popped int is < 0.
IFNE	Branches when the popped int is non-zero, the usual test for a true boolean.
IFNONNULL	Branches when the popped reference is not null.
IFNULL	Branches when the popped reference is null.

Method Summary

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

IFEQ

public static final ConditionalBranchInstruction.BranchType IFEQ

Branches when the popped int is zero, the usual test for a false boolean.

IFNE

public static final ConditionalBranchInstruction.BranchType IFNE

Branches when the popped int is non-zero, the usual test for a true boolean.

IFLT

public static final ConditionalBranchInstruction.BranchType IFLT

Branches when the popped int is < 0.

IFGE

public static final ConditionalBranchInstruction.BranchType IFGE

Branches when the popped int is >= 0.

IFGT

public static final ConditionalBranchInstruction.BranchType IFGT

Branches when the popped int is > 0.

IFLE

public static final ConditionalBranchInstruction.BranchType IFLE

Branches when the popped int is <= 0.

IF_ICMPEQ

public static final ConditionalBranchInstruction.BranchType IF_ICMPEQ

Branches when two popped ints are equal.

IF_ICMPNE

public static final ConditionalBranchInstruction.BranchType IF_ICMPNE

Branches when two popped ints differ.

IF_ICMPLT

public static final ConditionalBranchInstruction.BranchType IF_ICMPLT

Branches when the first of two popped ints is < the second.

IF_ICMPGE

public static final ConditionalBranchInstruction.BranchType IF_ICMPGE

Branches when the first of two popped ints is >= the second.

IF_ICMPGT

public static final ConditionalBranchInstruction.BranchType IF_ICMPGT

Branches when the first of two popped ints is > the second.

IF_ICMPLE

public static final ConditionalBranchInstruction.BranchType IF_ICMPLE

Branches when the first of two popped ints is <= the second.

IF_ACMPEQ

public static final ConditionalBranchInstruction.BranchType IF_ACMPEQ

Branches when two popped references point at the same object.

IF_ACMPNE

public static final ConditionalBranchInstruction.BranchType IF_ACMPNE

Branches when two popped references do not point at the same object.

IFNULL

public static final ConditionalBranchInstruction.BranchType IFNULL

Branches when the popped reference is null.

IFNONNULL

public static final ConditionalBranchInstruction.BranchType IFNONNULL

Branches when the popped reference is not null.

Method Detail

values

public static ConditionalBranchInstruction.BranchType[] 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 (ConditionalBranchInstruction.BranchType c : ConditionalBranchInstruction.BranchType.values())
    System.out.println(c);

Returns:

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

valueOf

public static ConditionalBranchInstruction.BranchType 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 ConditionalBranchInstruction.BranchType fromOpcode(int opcode)

Looks up the branch type for a JVM opcode.

Parameters:

opcode - the JVM opcode

Returns:

the matching type, or null if the opcode is not a conditional branch opcode