dk.brics.tajs.flowgraph.jsnodes

Class BinaryOperatorNode

java.lang.Object

dk.brics.tajs.flowgraph.AbstractNode

dk.brics.tajs.flowgraph.jsnodes.Node

dk.brics.tajs.flowgraph.jsnodes.LoadNode

dk.brics.tajs.flowgraph.jsnodes.BinaryOperatorNode

public class BinaryOperatorNode
extends LoadNode

Binary operator node.

v_result = <op>(v₁,v₁)

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	BinaryOperatorNode.Op The different kinds of binary operators.

Field Summary

Fields inherited from class dk.brics.tajs.flowgraph.AbstractNode

EXCEPTION_REG, FIRST_ORDINARY_REG, NO_VALUE, RETURN_REG

Constructor Summary

Constructors

Constructor and Description
BinaryOperatorNode(BinaryOperatorNode.Op op, int arg1_reg, int arg2_reg, int result_reg, SourceLocation location) Constructs a new binary operator node.

Method Summary

Methods

Modifier and Type	Method and Description
boolean	canThrowExceptions() Returns true if this node may throw exceptions.
void	check(BasicBlock b) Perform a consistency check of this node.
int	getArg1Register() Returns the first argument register.
int	getArg2Register() Returns the second argument register.
BinaryOperatorNode.Op	getOperator() Returns the operator.
String	operatorToString() Returns the operator in human readable form.
void	setArg1Register(int arg1_reg) Sets the first argument register.
void	setArg2Register(int arg2_reg) Sets the second argument register.
String	toString() Returns a string description of this node.
<ArgType> void	visitBy(NodeVisitor<ArgType> v, ArgType a) Visits this node with the given visitor.

Methods inherited from class dk.brics.tajs.flowgraph.jsnodes.LoadNode

getResultRegister

Methods inherited from class dk.brics.tajs.flowgraph.jsnodes.Node

visitBy

Methods inherited from class dk.brics.tajs.flowgraph.AbstractNode

getBlock, getDuplicateOf, getIndex, getSourceLocation, isArtificial, isDead, isRegistersDone, setArtificial, setBlock, setDead, setDuplicateOf, setIndex, setRegistersDone

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

BinaryOperatorNode

public BinaryOperatorNode(BinaryOperatorNode.Op op,
                  int arg1_reg,
                  int arg2_reg,
                  int result_reg,
                  SourceLocation location)

Constructs a new binary operator node.

Parameters:

op - The operator

arg1_reg - The register for the first argument.

arg2_reg - The register for the second argument.

result_reg - The register for the result.

location - The source location.

Method Detail

canThrowExceptions

public boolean canThrowExceptions()

Description copied from class: AbstractNode

Returns true if this node may throw exceptions.

Specified by:

canThrowExceptions in class AbstractNode

check

public void check(BasicBlock b)

Description copied from class: AbstractNode

Perform a consistency check of this node. Default implementation does nothing.

Overrides:

check in class AbstractNode

Parameters:

b - basic block containing this node

getArg1Register

public int getArg1Register()

Returns the first argument register.

getArg2Register

public int getArg2Register()

Returns the second argument register.

getOperator

public BinaryOperatorNode.Op getOperator()

Returns the operator.

operatorToString

public String operatorToString()

Returns the operator in human readable form.

setArg1Register

public void setArg1Register(int arg1_reg)

Sets the first argument register.

setArg2Register

public void setArg2Register(int arg2_reg)

Sets the second argument register.

toString

public String toString()

Description copied from class: AbstractNode

Returns a string description of this node.

Specified by:

toString in class AbstractNode

visitBy

public <ArgType> void visitBy(NodeVisitor<ArgType> v,
                     ArgType a)

Description copied from class: Node

Visits this node with the given visitor.

Specified by:

visitBy in class Node