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Started adding cases to the grammar.

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This commit is contained in:
Samuel Hammersberg 2023-02-17 15:25:06 +01:00
parent d345ccb33b
commit 7cedc2e28c
2 changed files with 28 additions and 19 deletions
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23
Grammar.cf
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@ -1,12 +1,21 @@
Program. Program ::= [Bind]; Program. Program ::= [Bind];
EId. Exp3 ::= Ident;
EInt. Exp3 ::= Integer; EId. Exp3 ::= Ident;
ELet. Exp3 ::= "let" [Bind] "in" Exp; EInt. Exp3 ::= Integer;
EApp. Exp2 ::= Exp2 Exp3; ELet. Exp3 ::= "let" [Bind] "in" Exp;
EAdd. Exp1 ::= Exp1 "+" Exp2; EApp. Exp2 ::= Exp2 Exp3;
EAbs. Exp ::= "\\" Ident ":" Type "." Exp; EAdd. Exp1 ::= Exp1 "+" Exp2;
EAnn. Exp3 ::= "(" Exp ":" Type ")"; EAbs. Exp ::= "\\" Ident ":" Type "." Exp;
EAnn. Exp3 ::= "(" Exp ":" Type ")";
ECase. Exp ::= "case" Exp "of" "{" [CaseMatch] "}";
--
CaseMatch. CaseMatch ::= Case "=>" Exp ;
separator CaseMatch ",";
--terminator CaseMatch ".";
CInt. Case ::= Integer ;
Bind. Bind ::= Ident ":" Type ";" Bind. Bind ::= Ident ":" Type ";"
Ident [Ident] "=" Exp ; Ident [Ident] "=" Exp ;

24
sample-programs/basic-1
View file

@ -4,17 +4,17 @@
--main : Int; --main : Int;
--main = tripplemagic ((\x:Int. x+x+3) ((\x:Int. x) 2)) 5 3 --main = tripplemagic ((\x:Int. x+x+3) ((\x:Int. x) 2)) 5 3
apply : (Int -> Int) -> Int -> Int; --apply : (Int -> Int) -> Int -> Int;
apply f x = f x; --apply f x = f x;
--
main : Int;
main = (\x : Int . x + 5) 5
--apply : (Int -> Int -> Int) -> Int -> Int;
--apply f x y = f x y;
--krimp: Int -> Int -> Int;
--krimp x y = x + y;
--main : Int; --main : Int;
--main = apply (krimp) 2 3;--apply (\y: Int . (\x: Int . x + y + 2)) 5 2; --main = (\x : Int . x + 5) 5
apply : (Int -> Int -> Int) -> Int -> Int -> Int;
apply f x y = f x y;
krimp: Int -> Int -> Int;
krimp x y = x + y;
main : Int;
main = apply (krimp) 2 3;--apply (\y: Int . (\x: Int . x + y + 2)) 5 2;