public static ITokenMatching <T> HasOne <T>(
this ITokenMatching self,
Func <ITokenMatching, ITokenMatching <T> >[] items,
out T res)
{
if (!(self is IMatchedTokenMatching matchedTokenMatching))
{
res = default;
return(TokenMatching <T> .MakeNotMatch(self.Context));
}
var results = items.Select(x => x(self)).ToArray();
var goodResults = results.OfType <IMatchedTokenMatching <T> >().ToArray();
if (goodResults.Count() > 1)
{
throw new Exception("more than one should not match!");
}
if (goodResults.Count() == 1)
{
res = goodResults.First().Value;
return(goodResults.First());
}
res = default;
return(TokenMatching <T> .MakeNotMatch(self.Context));
}
public IPopulateScope <IFrontendCodeElement, ISetUpSideNode> ParseParenthesisOrElement(IToken token)
{
if (token is ElementToken elementToken)
{
// smells
// why did i write this agian?
// why would an element be wrapped in parenthesis ?
// maybe I can just remove??
// maybe we have a parentthesis matcher?
if (elementToken.Tokens.Count() == 1 && elementToken.Tokens.First() is ParenthesisToken parenthesisToken)
{
return(ParseLine(parenthesisToken.Tokens));
}
foreach (var tryMatch in elementMakers)
{
if (TokenMatching <IPopulateScope <IFrontendCodeElement, ISetUpSideNode> > .MakeStart(elementToken.Tokens, this)
.Has(tryMatch, out var res)
.Has(new DoneMaker())
is IMatchedTokenMatching)
{
return(res);
}
}
}
else if (token is ParenthesisToken parenthesisToken)
{
return(ParseLine(parenthesisToken.Tokens));
}
throw new Exception("");
}
public static ITokenMatching <T> HasOne <T>(
this ITokenMatching self,
Func <ITokenMatching, ITokenMatching <T> > first,
Func <ITokenMatching, ITokenMatching <T> > second,
out T res)
{
if (!(self is IMatchedTokenMatching))
{
res = default;
return(TokenMatching <T> .MakeNotMatch(self.Context));
}
var firstResult = first(self);
var secondResult = second(self);
if (firstResult is IMatchedTokenMatching <T> && secondResult is IMatchedTokenMatching <T> )
{
throw new Exception("should not match both!");
}
if (firstResult is IMatchedTokenMatching <T> firstMatched)
{
res = firstMatched.Value;
return(firstResult);
}
if (secondResult is IMatchedTokenMatching <T> secondMatched)
{
res = secondMatched.Value;
return(secondResult);
}
res = default;
return(TokenMatching <T> .MakeNotMatch(self.Context));
}
public static ITokenMatching HasLine(this ITokenMatching self, Func <IMatchedTokenMatching, ITokenMatching> inner)
{
if (!(self is IMatchedTokenMatching matchedTokenMatching))
{
return(self);
}
if (matchedTokenMatching.AllTokens.Count <= matchedTokenMatching.EndIndex)
{
return(TokenMatching <object> .MakeNotMatch(self.Context));
}
if (matchedTokenMatching.AllTokens[matchedTokenMatching.EndIndex].Is1(out var token) && token.SafeIs(out LineToken line))
{
if (inner(TokenMatching <object> .MakeStart(line.Tokens.Select(x => OrType.Make <IToken, ISetUp>(x)).ToList(), self.Context, 0)) is IMatchedTokenMatching)
{
// uhhh new object?
// todo make a IMatchedTokenMatching with out a generic just for this
return(TokenMatching <object> .MakeMatch(matchedTokenMatching, new object(), matchedTokenMatching.EndIndex + 1));
}
;
return(TokenMatching <object> .MakeNotMatch(self.Context));
}
return(TokenMatching <object> .MakeNotMatch(self.Context));
}
//public static ITokenMatching<T> HasStruct<T>(this ITokenMatching self, IMaker<T> pattern, out T t)
// where T : struct
//{
// if (!(self is IMatchedTokenMatching firstMatched))
// {
// t = default;
// return TokenMatching<T>.MakeNotMatch(self.Context);
// }
// var res = pattern.TryMake(firstMatched);
// if (res is IMatchedTokenMatching<T> matched)
// {
// t = matched.Value;
// return res;
// }
// t = default;
// return res;
//}
public static ITokenMatching HasSquare(this ITokenMatching self, Func <IMatchedTokenMatching, ITokenMatching> inner)
{
if (!(self is IMatchedTokenMatching matchedTokenMatching))
{
return(self);
}
var index = matchedTokenMatching.EndIndex;
if (matchedTokenMatching.AllTokens.Count < index)
{
return(TokenMatching <object> .MakeNotMatch(self.Context));
}
if (matchedTokenMatching.AllTokens[index].Is1(out var token) && token.SafeIs(out SquareBacketToken squareBacketToken))
{
if (inner(TokenMatching <object> .MakeStart(squareBacketToken.Tokens.Select(x => OrType.Make <IToken, ISetUp>(x)).ToList(), self.Context, 0)) is IMatchedTokenMatching <object> mtm)
{
return(TokenMatching <object> .MakeMatch(matchedTokenMatching, mtm.Value, index + 1));
}
;
return(TokenMatching <object> .MakeNotMatch(self.Context));
}
return(TokenMatching <object> .MakeNotMatch(self.Context));
}
public static ITokenMatching <T> ConvertIfMatched <T>(this ITokenMatching tokenMatching, Func <T> convert, IMatchedTokenMatching source)
{
if (tokenMatching.SafeIs(out IMatchedTokenMatching matched))
{
return(TokenMatching <T> .MakeMatch(source, convert(), matched.EndIndex));
}
return(TokenMatching <T> .MakeNotMatch(tokenMatching.Context));
}
public static ITokenMatching <T> ConvertIfMatched <T, T1, T2, T3>(this ITokenMatching <T1, T2, T3> tokenMatching, Func <T1, T2, T3, T> convert, IMatchedTokenMatching source)
{
if (tokenMatching.SafeIs(out IMatchedTokenMatching <T1, T2, T3> matched))
{
return(TokenMatching <T> .MakeMatch(source, convert(matched.Value1, matched.Value2, matched.Value3), matched.EndIndex));
}
return(TokenMatching <T> .MakeNotMatch(tokenMatching.Context));
}
public ITokenMatching <ISetUp <IBox <IFrontendCodeElement>, Tpn.ITypeProblemNode> > TryMake(IMatchedTokenMatching elementToken)
{
if (elementToken.AllTokens[elementToken.EndIndex].Is1(out var token) && token.SafeIs(out ParenthesisToken parenthesisToken))
{
var res = elementToken.Context.ParseParenthesis(parenthesisToken);
if (res.Is1(out var setUp))
{
return(TokenMatching <ISetUp <IBox <IFrontendCodeElement>, Tpn.ITypeProblemNode> > .MakeMatch(elementToken, setUp, elementToken.EndIndex + 1));
}
}
return(TokenMatching <ISetUp <IBox <IFrontendCodeElement>, Tpn.ITypeProblemNode> > .MakeNotMatch(elementToken.Context));
}
public static ITokenMatching <T1, T2> Has <T1, T2>(this ITokenMatching <T1> self, IMaker <T2> pattern)
where T1 : class
where T2 : class
{
if (self is IMatchedTokenMatching <T1> firstMatched)
{
var res = pattern.TryMake(firstMatched);
if (res is IMatchedTokenMatching <T2> matched)
{
return(TokenMatching <T1, T2> .MakeMatch(firstMatched, firstMatched.Value, matched.Value, matched.EndIndex));
}
}
return(TokenMatching <T1, T2> .MakeNotMatch(self.Context));
}
public static ITokenMatching <T> Has <T>(this ITokenMatching <T> self, IMaker pattern)
{
if (!(self is IMatchedTokenMatching <T> matchedTokenMatching))
{
return(self);
}
var patternMatch = pattern.TryMake(self);
if (!(patternMatch is IMatchedTokenMatching matchedPattern))
{
return(TokenMatching <T> .MakeNotMatch(patternMatch.Context));
}
return(TokenMatching <T> .MakeMatch(matchedPattern.Tokens, matchedPattern.Context, matchedTokenMatching.Value));
}
public static ITokenMatching <T> Has <T>(this ITokenMatching self, IMaker <T> pattern, out T t)
{
t = default;
if (!(self is IMatchedTokenMatching firstMatched))
{
return(TokenMatching <T> .MakeNotMatch(self.Context));
}
var res = pattern.TryMake(firstMatched);
if (res is IMatchedTokenMatching <T> matched)
{
t = matched.Value;
}
return(res);
}
public static ITokenMatching <T> Has <T>(this ITokenMatching self, IMaker <T> pattern)
where T : class
{
if (!(self is IMatchedTokenMatching firstMatched))
{
return(TokenMatching <T> .MakeNotMatch(self.Context));
}
var res = pattern.TryMake(firstMatched);
if (res is IMatchedTokenMatching <T> matched)
{
return(matched);
}
return(res);
}
public IPopulateScope <IFrontendType, ISetUpSideNode> ParseTypeLine(IEnumerable <IToken> tokens)
{
foreach (var operationMatcher in typeOperationMatchers)
{
if (TokenMatching <IPopulateScope <ICodeElement, ISetUpSideNode> > .MakeStart(tokens.ToArray(), this)
.Has(operationMatcher, out var res)
is IMatchedTokenMatching)
{
return(res);
}
}
if (tokens.Count() == 1)
{
return(ParseParenthesisOrElementType(tokens.Single()));
}
throw new Exception("");
}
private IOrType <ISetUp <IBox <T>, Tpn.ITypeProblemNode>, IError> InnerParseLine <T>(IReadOnlyList <IToken> tokens, IMaker <ISetUp <IBox <T>, Tpn.ITypeProblemNode> >[] makers)
{
var myList = tokens.Select(x => OrType.Make <IToken, ISetUp <IBox <T>, Tpn.ITypeProblemNode> >(x)).ToList();
foreach (var maker in makers)
{
// TODO
// {796AF658-9160-41E2-AD6D-A6D5B905482F}
// some makers actually want to go right to left
// x := aggregate < filter < transform < filter < somelist
// x := y := z := 1
// ++ ++ ++ ++ a
// a of b of c (as opposed to c.b.a)
top:
for (int i = 0; i < myList.Count; i++)
{
var matching = TokenMatching <ISetUp <ICodeElement, Tpn.ITypeProblemNode> > .MakeStart(myList, this, i);
if (matching.Has(maker, out var element).SafeIs(out IMatchedTokenMatching <ISetUp <IBox <T>, Tpn.ITypeProblemNode> > matched))
{
myList.RemoveRange(matched.StartIndex, matched.EndIndex - matched.StartIndex);
myList.Insert(matched.StartIndex, OrType.Make <IToken, ISetUp <IBox <T>, Tpn.ITypeProblemNode> >(matched.Value));
goto top;
}
}
}
if (myList.Count > 1)
{
return(OrType.Make <ISetUp <IBox <T>, Tpn.ITypeProblemNode>, IError>(Error.Other("expected to parse down to one element (this can mean your as missing a ;)")));
}
var single = myList.Single();
if (single.Is2(out var setup))
{
return(OrType.Make <ISetUp <IBox <T>, Tpn.ITypeProblemNode>, IError>(setup));
}
return(OrType.Make <ISetUp <IBox <T>, Tpn.ITypeProblemNode>, IError>(Error.Other("token could not be matched")));
}
public static ITokenMatching <T> Has <T>(this ITokenMatching self, IMaker <T> pattern, out T t)
{
if (!(self is IMatchedTokenMatching firstMatched))
{
#pragma warning disable CS8601 // Possible null reference assignment.
t = default;
#pragma warning restore CS8601 // Possible null reference assignment.
return(TokenMatching <T> .MakeNotMatch(self.Context));
}
var res = pattern.TryMake(firstMatched);
if (res is IMatchedTokenMatching <T> matched)
{
t = matched.Value;
return(res);
}
#pragma warning disable CS8601 // Possible null reference assignment.
t = default;
#pragma warning restore CS8601 // Possible null reference assignment.
return(res);
}
public static ITokenMatching HasElement(this ITokenMatching self, Func <IMatchedTokenMatching, ITokenMatching> inner)
{
if (!(self is IMatchedTokenMatching matchedTokenMatching))
{
return(self);
}
if (matchedTokenMatching.Tokens.Any().Not())
{
return(TokenMatching <object> .MakeNotMatch(self.Context));
}
if (matchedTokenMatching.Tokens.First() is ElementToken elementToken)
{
if (inner(TokenMatching <object> .MakeStart(elementToken.Tokens, self.Context)) is IMatchedTokenMatching matched)
{
return(TokenMatching <object> .MakeStart(matched.Tokens.Skip(1).ToArray(), self.Context));
}
;
return(TokenMatching <object> .MakeNotMatch(self.Context));
}
return(TokenMatching <object> .MakeNotMatch(self.Context));
}
