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ajout parser et un peu lexer

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This commit is contained in:
Nicolas PENELOUX 2023-10-16 22:59:17 +02:00
parent 04e06654de
commit a58be772ac
2 changed files with 59 additions and 16 deletions
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22
flap/src/hopix/hopixLexer.mll
View file

@ -27,12 +27,18 @@ let integers = '-'? (digit+
| bina+
| octa+)
let printable = [' ' '\t' '\n' '\r' (*33-126*)] (*pas sûr*)
let ident = ['a'-'z']['A'-'Z' 'a'-'z' '0'-'9' '_']*
let constr_id = ['A'-'Z']['A'-'Z' 'a'-'z' '0'-'9' '_']*
let type_variable = '\''ident
(*TODO type_con*)
let type_variable = ['\'']['a'-'z']['A'-'Z' 'a'-'z' '0'-'9' '_']*
(* On ne peut pas différencier au niveau du lexer var_id label_id et type_con, il faudra le faire à l'analyseur syntaxique*)
let atom = '"'
let char = ['\'']atom['\'']
let string = ['\"']((atom | '\'' | "\\\""))['\"']
(*let binop = '+' | '-' | '*' | '/' | "&&" | "||"| "=?"| "<=?" |">=?" |"<?" |">?"*)
let binop = '+' | '-' | '*' | '/' | "&&" | "||"| "=?"| "<=?" |">=?" |"<?" |">?"
rule token = parse
(** Layout *)
@ -58,11 +64,14 @@ rule token = parse
| "for" { FOR }
| "from" { FROM }
| "to" { TO }
| "and" { AND }
| "for" { FOR }
(* Fini ? *)
(* binar operation : pas sûr pour celui là*)
(*
| binop as b { BINOP (* TODO *) }
*)
(** Operators *)
| '=' { EQUAL }
@ -72,7 +81,10 @@ rule token = parse
| '[' { LBRACK }
| ']' { RBRACK }
| '_' { WILDCARD }
| ':' { DPOINT }
| "->" { ARROW }
| "<" { INFERIOR }
| ">" { SUPERIOR }
(** Values *)
| integers as i { INT (Mint.of_string i) }

51
flap/src/hopix/hopixParser.mly
View file

@ -5,7 +5,7 @@
%}
%token EOF LET TYPE WILDCARD EXTERN FUN MATCH IF THEN ELSE REF AND WHILE DO UNTIL FOR FROM TO BINOP EQUAL LPAREN RPAREN LBRACK RBRACK
%token EOF LET TYPE WILDCARD STAR INFERIOR SUPERIOR ARROW DPOINT EXTERN FUN MATCH COMMA IF THEN ELSE REF AND WHILE DO UNTIL FOR FROM TO BINOP EQUAL LPAREN RPAREN LBRACK RBRACK
%token<Mint.t> INT
%token<string> ID TID
@ -27,16 +27,23 @@ definition:
vdefinition: // manque le type ici, on met None en attendant
| LET i=located(identifier) EQUAL e=located(expression) {
SimpleValue(i, None, e)
}
}(*
| LET i=located(identifier) DPOINT ts=located(type_scheme) EQUAL e=located(expression){
SimpleValue(i,ts,e)
}*)
(* marche pas*)
| FUN f=fundef AND* f2=fundef* {
RecFunctions([f::f2])
}
| FUN f=fundef {
RecFunctions([f])
}
(*fun : int f a = 1*)
(* de même*)
fundef:
|(*ts est temp*) ts= type_scheme* i=located(identifier) p=pattern EQUAL e=located(expression){
|(*ts est temp*) i=located(identifier) p=pattern EQUAL e=located(expression){
FunctionDefinition(p,e)
}
|(*ts est temp*) DPOINT ts=located(type_scheme) i=located(identifier) p=pattern EQUAL e=located(expression){
FunctionDefinition(p,e)
}
@ -52,14 +59,33 @@ pattern:
ty:
| tc = type_constructor{
TyCon(tc,None)
}
(* Todo version avec l'optionnel*)
| ty1=located(ty) ARROW ty2=located(ty){
TyArrow(ty1,ty2)
}
| ty1=located(ty) STAR ty2=located(ty){
TyTuple([ty1;ty2])
}
| ty1=located(ty) STAR ty2= located(ty) STAR liste_ty = separated_list(STAR,located(ty)){
TyTuple(ty1::ty2::liste_ty)
}
| LPAREN type_var=type_variable RPAREN {
TyVar type_var
}
type_scheme:
| LBRACK type_variable=located(type_variable)+ RBRACK ty=located(ty){
ForallTy(type_variable,ty)
}
type_scheme:
(* il faut peut être modifié le séparateur*)
| LBRACK liste_typevar = separated_list(COMMA,located(type_variable)) RBRACK ty=located(ty){
ForallTy(liste_typevar,ty)
}
| ty=located(ty){
ForallTy([],ty)
}
type_variable:
@ -67,6 +93,11 @@ type_variable:
TId tid
}
type_constructor:
| tcon = TID {
TCon tcon
}