public void AddFunction(AspectMetadata meta)
{
if (_alreadyAddedFunctions.Contains(meta.Name))
{
// already added
return;
}
_alreadyAddedFunctions.Add(meta.Name);
var possibleTags = meta.PossibleTags() ?? new Dictionary <string, HashSet <string> >();
int numberOfCombinations;
numberOfCombinations = possibleTags.Values.Select(lst => 1 + lst.Count).Multiply();
var usedParams = meta.UsedParameters();
var funcNameDeclaration = "";
meta.Visit(e => {
if (e is Function f && f.Name.Equals(Funcs.MemberOf.Name))
{
funcNameDeclaration = $"\n local funcName = \"{meta.Name.AsLuaIdentifier()}\"";
}
return(true);
});
var expression = meta.ExpressionImplementation;
var ctx = Context;
_context = _context.WithAspectName(meta.Name);
var body = "";
if (_useSnippets)
{
if (expression.Types.First() is Curry c)
{
expression = expression.Apply(new LuaLiteral(Typs.Tags, "tags"));
}
body = Utils.Lines(
" local r = nil",
" " + Snippets.Convert(this, "r", expression).Indent(),
" return r"
);
}
else
{
body = " return " + ToLua(expression);
}
var impl = Utils.Lines(
"--[[",
meta.Description,
"",
"Unit: " + meta.Unit,
"Created by " + meta.Author,
"Uses tags: " + string.Join(", ", possibleTags.Keys),
"Used parameters: " + string.Join(", ", usedParams),
"Number of combintations: " + numberOfCombinations,
"Returns values: ",
"]]",
"function " + meta.Name.AsLuaIdentifier() + "(parameters, tags, result)" + funcNameDeclaration,
body,
"end"
);
_context = ctx;
_functionImplementations.Add(impl);
}