/// <summary>
/// Translate a fully formed expression. Partial expressions
/// are not trnaslated, however!
/// </summary>
/// <param name="expr"></param>
/// <param name="cookies">List of cookies - a trail of variable renames we've done</param>
/// <returns></returns>
public static Expression Translate(Expression expr, List <string> cookies, Func <Expression, Expression> resolver)
{
// Remove Tuple's and custom objects.
var exprObjsRemoved = ObjectPropertyExpressionVisitor.RemoveObjectAndTupleReferences(expr);
// Now, do our custom translations.
var oldResolver = _impl.Value.Resolver;
_impl.Value.Resolver = resolver;
var oldRenameList = _impl.Value.RenameList;
_impl.Value.RenameList = new List <string>();
try {
var result = _impl.Value.Visit(exprObjsRemoved);
// Track all cookies going out!
cookies.AddRange(_impl.Value.RenameList);
return(result);
}
finally
{
// Reset to previous state.
_impl.Value.Resolver = oldResolver;
_impl.Value.RenameList = oldRenameList;
}
}
/// <summary>
/// Run the expression.
/// </summary>
/// <param name="xpr"></param>
/// <returns></returns>
Expression DoTranslate(Expression expr)
{
// Remove Tuple's and similar things.
var objlift = new ObjectPropertyExpressionVisitor();
var exprObjsRemoved = objlift.VisitExpression(expr);
return exprObjsRemoved;
}
/// <summary>
/// Run the expression.
/// </summary>
/// <param name="xpr"></param>
/// <returns></returns>
Expression DoTranslate(Expression expr)
{
// Remove Tuple's and similar things.
var objlift = new ObjectPropertyExpressionVisitor();
var exprObjsRemoved = objlift.VisitExpression(expr);
return(exprObjsRemoved);
}
