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Remove lambda patterns

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This commit is contained in:
Martin Fredin 2023-05-06 23:45:27 +02:00
parent 019ed0d45a
commit b5b6d96f77
2 changed files with 12 additions and 12 deletions
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4
Grammar.cf
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@ -65,8 +65,8 @@ internal EVar. Exp4 ::= LIdent;
EApp. Exp3 ::= Exp3 Exp4;
EAdd. Exp2 ::= Exp2 "+" Exp3;
ELet. Exp1 ::= "let" Bind "in" Exp1;
EAbsS. Exp1 ::= "\\" Pattern "." Exp1;
internal EAbs. Exp1 ::= "\\" LIdent "." Exp1;
-- EAbsS. Exp1 ::= "\\" Pattern "." Exp1;
EAbs. Exp1 ::= "\\" LIdent "." Exp1;
ECase. Exp1 ::= "case" Exp "of" "{" [Branch] "}";
EAnn. Exp ::= Exp1 ":" Type;

20
src/Desugar/Desugar.hs
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@ -62,18 +62,18 @@ desugarInj (Inj ident typ) = Inj ident (desugarType typ)
desugarExp :: Exp -> Exp
desugarExp = \case
EApp e1 e2 -> EApp (desugarExp e1) (desugarExp e2)
EAdd e1 e2 -> EAdd (desugarExp e1) (desugarExp e2)
EAbs i e -> EAbs i (desugarExp e)
EAbsS pat e -> EAbs (LIdent "$zz$") (ECase (EVar "$zz$") [Branch (desugarPattern pat) (desugarExp e)])
ELet b e -> ELet (desugarBind b) (desugarExp e)
ECase e br -> ECase (desugarExp e) (map desugarBranch br)
EAnn e t -> EAnn (desugarExp e) t
EApp e1 e2 -> EApp (desugarExp e1) (desugarExp e2)
EAdd e1 e2 -> EAdd (desugarExp e1) (desugarExp e2)
EAbs i e -> EAbs i (desugarExp e)
-- EAbsS pat e -> EAbs (LIdent "$zz$") (ECase (EVar "$zz$") [Branch (desugarPattern pat) (desugarExp e)])
ELet b e -> ELet (desugarBind b) (desugarExp e)
ECase e br -> ECase (desugarExp e) (map desugarBranch br)
EAnn e t -> EAnn (desugarExp e) t
EVarS (VSymbol (Symbol symb)) -> EVar (LIdent $ fixName symb)
EVarS (VIdent (LIdent ident)) -> EVar $ LIdent $ fixName ident
EVar i -> EVar i
ELit l -> ELit l
EInj i -> EInj i
EVar i -> EVar i
ELit l -> ELit l
EInj i -> EInj i
desugarBranch :: Branch -> Branch
desugarBranch (Branch p e) = Branch (desugarPattern p) (desugarExp e)