com.caucho.quercus.expr
Class ToBooleanExpr

java.lang.Object
  extended by com.caucho.quercus.expr.Expr
      extended by com.caucho.quercus.expr.AbstractUnaryExpr
          extended by com.caucho.quercus.expr.ToBooleanExpr
Direct Known Subclasses:
ToBooleanExprPro

public class ToBooleanExpr
extends AbstractUnaryExpr

Converts to a boolean


Field Summary
 
Fields inherited from class com.caucho.quercus.expr.AbstractUnaryExpr
_expr
 
Fields inherited from class com.caucho.quercus.expr.Expr
COMPILE_ARG_MAX
 
Constructor Summary
ToBooleanExpr(Expr expr)
           
ToBooleanExpr(Location location, Expr expr)
           
 
Method Summary
 Value eval(Env env)
          Evaluates the expression.
 java.lang.String toString()
           
 
Methods inherited from class com.caucho.quercus.expr.AbstractUnaryExpr
getExpr
 
Methods inherited from class com.caucho.quercus.expr.Expr
assign, canRead, createAssign, createAssignFrom, createAssignRef, createCall, createClassConst, createClassField, createClassField, createCopy, createDeref, createFieldGet, createFieldGet, createIsset, createRef, createUnset, evalArg, evalArgs, evalArray, evalArrayAssign, evalAssignRef, evalAssignValue, evalBoolean, evalChar, evalConstant, evalConstantPrefix, evalConstantSuffix, evalCopy, evalDirty, evalDouble, evalIsset, evalLong, evalObject, evalPostIncrement, evalPreIncrement, evalRef, evalString, evalStringValue, evalTop, evalUnsetArray, evalValue, evalVar, getFileName, getFunctionLocation, getLine, getLocation, getLocationLine, isArray, isAssign, isBoolean, isConstant, isDouble, isFalse, isLiteral, isLong, isNumber, isRef, isString, isTrue, isVar, print
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

ToBooleanExpr

public ToBooleanExpr(Location location,
                     Expr expr)

ToBooleanExpr

public ToBooleanExpr(Expr expr)
Method Detail

eval

public Value eval(Env env)
Evaluates the expression.

Specified by:
eval in class Expr
Parameters:
env - the calling environment.
Returns:
the expression value.

toString

public java.lang.String toString()
Overrides:
toString in class Expr