fmrisc.Syntax
Class BinaryExpression

java.lang.Object
  fmrisc.Syntax.ASTBase
      fmrisc.Syntax.ExpressionBase
          fmrisc.Syntax.BinaryExpression

All Implemented Interfaces:

AST, Expression

Direct Known Subclasses:

AndFormula, DividesTerm, EqualsFormula, EquivalentFormula, GreaterEqualFormula, GreaterFormula, ImpliesFormula, LessEqualFormula, LessFormula, MinusTerm, NotEqualsFormula, NotEquivalentFormula, OrFormula, PlusTerm, PowerTerm, TimesTerm

public abstract class BinaryExpression
extends ExpressionBase

Abstract base class of binary expressions

Constructor Summary

BinaryExpression(java.lang.String op, Expression first, Expression second)
constructs binary expression from op, first, and second

Method Summary

AST	accept(ASTVisitor visitor) Accept visitor for a visit.
abstract BinaryExpression	construct(Expression first, Expression second) Construct binary expression of the same kind as this expression.
Expression	getFirst() Returns first subexpression
Expression	getSecond() Returns second subexpression
Expression	instantiate() return copy of AST with value references instantiated by the substitutions set in the corresponding declaration identifiers
void	printCore(java.io.PrintWriter out) Prints text representation of tree on out (without new line termination).

Methods inherited from class fmrisc.Syntax.ExpressionBase

getPriority, printPriority

Methods inherited from class fmrisc.Syntax.ASTBase

print, printParens, toString

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface fmrisc.Syntax.AST

print, printParens, toString

Constructor Detail

BinaryExpression

public BinaryExpression(java.lang.String op,
                        Expression first,
                        Expression second)

constructs binary expression from op, first, and second

Parameters:

op - the name of the operation used for printing

first - the first operand

second - the second operand

Method Detail

getFirst

public Expression getFirst()

Returns first subexpression

Returns:

the first subexpression

getSecond

public Expression getSecond()

Returns second subexpression

Returns:

the second subexpression

printCore

public void printCore(java.io.PrintWriter out)

Prints text representation of tree on out (without new line termination).

Specified by:

printCore in interface AST

Specified by:

printCore in class ASTBase

Parameters:

out - the stream on which the text is written

instantiate

public Expression instantiate()

return copy of AST with value references instantiated by the substitutions set in the corresponding declaration identifiers

Returns:

the instantiated copy

construct

public abstract BinaryExpression construct(Expression first,
                                           Expression second)

Construct binary expression of the same kind as this expression.

Parameters:

first - an expression.

second - an expression.

Returns:

a binary expression of the same kind as this expression with subexpressions first and second.

accept

public AST accept(ASTVisitor visitor)

Accept visitor for a visit.

Parameters:

visitor - the visitor who is accepted by this node.

Returns:

the result of the visit (may be null).