protected virtual DbLambda VisitLambda(DbLambda lambda)
{
Check.NotNull(lambda, "lambda");
var result = lambda;
var newFormals = VisitList(
lambda.Variables, varRef =>
{
var newVarType = VisitTypeUsage(varRef.ResultType);
if (!ReferenceEquals(varRef.ResultType, newVarType))
{
return(CqtBuilder.Variable(newVarType, varRef.VariableName));
}
else
{
return(varRef);
}
}
);
EnterScope(newFormals.ToArray()); // ToArray: Don't pass the List instance directly to OnEnterScope
var newBody = VisitExpression(lambda.Body);
ExitScope();
if (!ReferenceEquals(lambda.Variables, newFormals)
||
!ReferenceEquals(lambda.Body, newBody))
{
result = CqtBuilder.Lambda(newBody, newFormals);
}
return(result);
}