public override SqlExpression VisitConditional(SqlConditionalExpression conditional)
{
var evalTest = Visit(conditional.TestExpression);
if (evalTest.ExpressionType != SqlExpressionType.Constant)
{
throw new ExpressionEvaluateException("The test expression of a conditional must evaluate to a constant value.");
}
var evalTestValue = ((SqlConstantExpression)evalTest).Value;
if (!(evalTestValue.Type is BooleanType))
{
throw new ExpressionEvaluateException("The test expression of a conditional must be a boolean value.");
}
if (evalTestValue)
{
return(Visit(conditional.TrueExpression));
}
if (conditional.FalseExpression != null)
{
return(Visit(conditional.FalseExpression));
}
return(SqlExpression.Constant(PrimitiveTypes.Null()));
}
/// <summary>
///
/// </summary>
/// <param name="conditional"></param>
/// <returns></returns>
public virtual SqlExpression VisitConditional(SqlConditionalExpression conditional)
{
var test = conditional.TestExpression;
var ifTrue = conditional.TrueExpression;
var ifFalse = conditional.FalseExpression;
if (test != null)
{
test = Visit(test);
}
if (ifTrue != null)
{
ifTrue = Visit(ifTrue);
}
if (ifFalse != null)
{
ifFalse = Visit(ifFalse);
}
return(SqlExpression.Conditional(test, ifTrue, ifFalse));
}
/// <summary>
///
/// </summary>
/// <param name="conditional"></param>
/// <returns></returns>
public virtual SqlExpression VisitConditional(SqlConditionalExpression conditional)
{
var test = conditional.TestExpression;
var ifTrue = conditional.TrueExpression;
var ifFalse = conditional.FalseExpression;
if (test != null)
test = Visit(test);
if (ifTrue != null)
ifTrue = Visit(ifTrue);
if (ifFalse != null)
ifFalse = Visit(ifFalse);
return SqlExpression.Conditional(test, ifTrue, ifFalse);
}
public override SqlExpression VisitConditional(SqlConditionalExpression conditional)
{
var evalTest = Visit(conditional.TestExpression);
if (evalTest.ExpressionType != SqlExpressionType.Constant)
throw new ExpressionEvaluateException("The test expression of a conditional must evaluate to a constant value.");
var evalTestValue = ((SqlConstantExpression) evalTest).Value;
if (!(evalTestValue.Type is BooleanType))
throw new ExpressionEvaluateException("The test expression of a conditional must be a boolean value.");
if (evalTestValue)
return Visit(conditional.TrueExpression);
if (conditional.FalseExpression != null)
return Visit(conditional.FalseExpression);
return SqlExpression.Constant(PrimitiveTypes.Null());
}
public override SqlExpression VisitConditional(SqlConditionalExpression conditional)
{
return base.VisitConditional(conditional);
}
public override SqlExpression VisitConditional(SqlConditionalExpression conditional)
{
return(base.VisitConditional(conditional));
}