From: Mart Lubbers Date: Thu, 14 Apr 2016 09:21:07 +0000 (+0200) Subject: hoi' X-Git-Url: https://git.martlubbers.net/?a=commitdiff_plain;h=2c6cd7dda8fd06c4457efc8751df343b83616b11;p=cc1516.git hoi' git push oi --- diff --git a/examples/Markus/overloading.spl b/examples/Markus/overloading.spl index 754da17..4d8c615 100644 --- a/examples/Markus/overloading.spl +++ b/examples/Markus/overloading.spl @@ -1,6 +1,8 @@ // At this point you maybe don't see what the problem is. // Wait until you try to implement your code generator. +var a = equal(1, 2); + equal(x, y) { return x == y; diff --git a/sem.icl b/sem.icl index 3438810..820e45d 100644 --- a/sem.icl +++ b/sem.icl @@ -42,13 +42,13 @@ where m :: Env ([VarDecl], [FunDecl]) m = mapM semVarDecl vd >>= \vd1 -> mapM semFunDecl fd >>= \fd1 -> - mapM semVarDecl vd1 >>= \vd2 -> - mapM semFunDecl fd1 >>= \fd2 -> - mapM semVarDecl vd2 >>= \vd3 -> - mapM semFunDecl fd2 >>= \fd3 -> - mapM semVarDecl vd3 >>= \vd4 -> - mapM semFunDecl fd3 >>= \fd4 -> //Dit is puur om te proberen - pure (vd4, fd4) +// mapM semVarDecl vd1 >>= \vd2 -> +// mapM semFunDecl fd1 >>= \fd2 -> +// mapM semVarDecl vd2 >>= \vd3 -> +// mapM semFunDecl fd2 >>= \fd3 -> +// mapM semVarDecl vd3 >>= \vd4 -> +// mapM semFunDecl fd3 >>= \fd4 -> //Dit is puur om te proberen + pure (vd1, fd1) semFunDecl :: FunDecl -> Env FunDecl semFunDecl fd=:(FunDecl p f args mt vds stmts) = @@ -59,15 +59,26 @@ semFunDecl fd=:(FunDecl p f args mt vds stmts) = matchFunctions args ft >>= \tres-> mapM semVarDecl vds >>= \newvds-> mapM (checkStmt tres) stmts >>= \newstmts-> - inferReturnType stmts >>= \returntype-> + inferReturnType stmts >>= \returntype`-> + unify returntype` tres >>= \returntype-> case mt of Nothing = reconstructType args tres + >>= \ftype`->recoverType ftype` >>= \ftype->restoreGamma gamma >>| putIdent f ftype >>| pure ( FunDecl p f args (Just ftype) newvds newstmts) Just t = restoreGamma gamma >>| updateFunType t returntype >>= \tt-> pure (FunDecl p f args (Just tt) newvds newstmts) +recoverType :: Type -> Env Type +recoverType (IdType ident) = gets (\(st, r)->'Map'.get ident st) + >>= \mt->case mt of + Nothing = pure (IdType ident) + Just t = pure t +recoverType (t1 ->> t2) = recoverType t1 >>= \t1`->recoverType t2 + >>= \t2`->pure (t1` ->> t2`) +recoverType t = pure t + updateFunType :: Type Type -> Env Type updateFunType t1 t2 = unify t1 t2 updateFunType (t1 ->> t2) t3 = t1 ->> (updateFunType t2 t3)