edu.jmu.decaf

Class ASTBinaryExpr

java.lang.Object

edu.jmu.decaf.ASTNode

edu.jmu.decaf.ASTExpression

edu.jmu.decaf.ASTBinaryExpr

public class ASTBinaryExpr
extends ASTExpression

Decaf binary operation with an operation tag and two child sub-expressions. When executed, the program should evaluate the left-hand side and the right-hand side separately and then perform the given operation on the two values. Some operations (e.g., boolean AND and OR) can be short-circuited.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ASTBinaryExpr.BinOp List of permitted binary operations.

Nested classes/interfaces inherited from class edu.jmu.decaf.ASTNode

ASTNode.DataType

Field Summary

Fields

Modifier and Type	Field and Description
ASTExpression	leftChild
ASTBinaryExpr.BinOp	operator
ASTExpression	rightChild

Fields inherited from class edu.jmu.decaf.ASTNode

attributes

Constructor Summary

Constructors

Constructor and Description
ASTBinaryExpr(ASTBinaryExpr.BinOp operator, ASTExpression leftChild, ASTExpression rightChild)

Method Summary

Modifier and Type	Method and Description
static String	opToString(ASTBinaryExpr.BinOp op)
String	toString()
void	traverse(ASTVisitor visitor) Generic traversal method for the visitor pattern.

Methods inherited from class edu.jmu.decaf.ASTNode

getASTTypeStr, getDepth, getParent, getSourceInfo, getType, setDepth, setParent, setSourceInfo, setType, typeToString

Methods inherited from class java.lang.Object

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

Field Detail

operator

public ASTBinaryExpr.BinOp operator

leftChild

public ASTExpression leftChild

rightChild

public ASTExpression rightChild

Constructor Detail

ASTBinaryExpr

public ASTBinaryExpr(ASTBinaryExpr.BinOp operator,
                     ASTExpression leftChild,
                     ASTExpression rightChild)

Method Detail

opToString

public static String opToString(ASTBinaryExpr.BinOp op)

traverse

public void traverse(ASTVisitor visitor)

Description copied from class: ASTNode

Generic traversal method for the visitor pattern. This will be overloaded by all child classes.

Overrides:

traverse in class ASTNode

Parameters:

visitor - Visitor object

toString

public String toString()

Overrides:

toString in class Object