com.caucho.quercus.expr
Class UnaryGenerateExpr

java.lang.Object
  com.caucho.quercus.expr.GenerateExpr
      com.caucho.quercus.expr.UnaryGenerateExpr

public abstract class UnaryGenerateExpr
extends GenerateExpr

Represents a PHP boolean negation

Field Summary

Fields inherited from class com.caucho.quercus.expr.GenerateExpr

COMPILE_ARG_MAX

Constructor Summary

UnaryGenerateExpr(Location location)

Method Summary

void	analyze(AnalyzeInfo info) Analyze the expression
protected abstract GenerateExpr	getExpr() Returns the child expression.
VarState	getVarState(ProVarExpr var, ProVarExpr owner) Returns the variables state.
boolean	isVarAssigned(VarExpr var) Returns true if the variable is ever assigned.

Methods inherited from class com.caucho.quercus.expr.GenerateExpr

analyzeAssign, analyzeSetModified, analyzeSetReference, analyzeTop, analyzeUnset, combineBinaryVarState, generate, generateAppend, generateArg, generateArray, generateAssign, generateAssignRef, generateAssignRef, generateBoolean, generateChar, generateCopy, generateDirty, generateDouble, generateExpr, generateGetOut, generateInt, generateLong, generateModifiedRead, generateObject, generatePrint, generateRef, generateReturn, generateStatement, generateString, generateStringValue, generateTop, generateUnset, generateValue, getLocation, isBoolean, isDouble, isLong, isNumber, isString

Methods inherited from class java.lang.Object

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

Constructor Detail

UnaryGenerateExpr

public UnaryGenerateExpr(Location location)

Method Detail

getExpr

protected abstract GenerateExpr getExpr()

Returns the child expression.

analyze

public void analyze(AnalyzeInfo info)

Analyze the expression

Specified by:

analyze in class GenerateExpr

getVarState

public VarState getVarState(ProVarExpr var,
                            ProVarExpr owner)

Returns the variables state.

Parameters:

var - the variables to test

owner - the owning expression

isVarAssigned

public boolean isVarAssigned(VarExpr var)

Returns true if the variable is ever assigned.

Overrides:

isVarAssigned in class GenerateExpr

Parameters:

var - the variable to test