Package org.jboss.byteman.rule.expression

Class UnaryOperExpression

java.lang.Object

org.jboss.byteman.rule.RuleElement

org.jboss.byteman.rule.expression.Expression

org.jboss.byteman.rule.expression.OperExpression

org.jboss.byteman.rule.expression.UnaryOperExpression

Direct Known Subclasses:

MinusExpression, NotExpression, TwiddleExpression

public abstract class UnaryOperExpression
extends OperExpression

unary operators includes boolean NOT and arithmetic TWIDDLE n.b. unary MINUS is not currently supported except as part of number parsing

Field Summary

Fields inherited from class org.jboss.byteman.rule.expression.Expression

charPos, line, rule, token, type

Fields inherited from class org.jboss.byteman.rule.expression.OperExpression

AND, ASSIGN, BAND, BINARY, BOR, BXOR, COND, DIV, EQ, GE, GT, LE, LSH, LT, MINUS, MOD, MUL, NE, NOT, oper, OR, PLUS, RSH, TERNARY, TWIDDLE, UMINUS, UNARY, URSH

Constructor Summary

Constructors

Constructor	Description
UnaryOperExpression(Rule rule, int oper, Type type, ParseNode token, Expression operand)

Method Summary

Modifier and Type	Method	Description
void	bind()	verify that variables mentioned in this expression are actually available in the supplied bindings list and infer/validate the type of this expression or its subexpressions where possible
Expression	getOperand(int index)	return the operand with the given index or null if the index is out of range

Methods inherited from class org.jboss.byteman.rule.expression.Expression

getPos, getType, interpret, typeCheck

Methods inherited from class java.lang.Object

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

Methods inherited from class org.jboss.byteman.rule.expression.OperExpression

convertOper, writeTo

Methods inherited from class org.jboss.byteman.rule.RuleElement

compile, getBindings, getTypeGroup, rebox, toString

Constructor Detail

UnaryOperExpression

public UnaryOperExpression(Rule rule,
                           int oper,
                           Type type,
                           ParseNode token,
                           Expression operand)

Method Detail

bind

public void bind()
          throws TypeException

verify that variables mentioned in this expression are actually available in the supplied bindings list and infer/validate the type of this expression or its subexpressions where possible

Specified by:

bind in class Expression

Throws:

TypeException - if any variable is missing or has the wrong type

getOperand

public Expression getOperand(int index)

return the operand with the given index or null if the index is out of range

Specified by:

getOperand in class OperExpression

Parameters:

index - the operand index

Returns:

the operand with the given index