private IBoundExpression ResolveProcedureNamespace()
{
/* Namespace tier 1:
* Procedure namespace: A local variable, reference parameter binding or constant whose implicit
* or explicit definition precedes this expression in an enclosing procedure.
*/
if (!_parent.DeclarationType.HasFlag(DeclarationType.Function) && !_parent.DeclarationType.HasFlag(DeclarationType.Procedure))
{
return(null);
}
var parameter = _declarationFinder.FindMemberEnclosingProcedure(_parent, _name, DeclarationType.Parameter);
if (IsValidMatch(parameter, _name))
{
return(new SimpleNameExpression(parameter, ExpressionClassification.Variable, _context));
}
var localVariable = _declarationFinder.FindMemberEnclosingProcedure(_parent, _name, DeclarationType.Variable)
?? _declarationFinder.FindMemberEnclosingProcedure(_parent, _name, DeclarationType.Variable)
;
if (IsValidMatch(localVariable, _name))
{
return(new SimpleNameExpression(localVariable, ExpressionClassification.Variable, _context));
}
var constant = _declarationFinder.FindMemberEnclosingProcedure(_parent, _name, DeclarationType.Constant);
if (IsValidMatch(constant, _name))
{
return(new SimpleNameExpression(constant, ExpressionClassification.Value, _context));
}
return(null);
}