2010-06-21 18:19:58 +02:00
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%{
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open Signature
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open Names
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2010-07-23 19:45:19 +02:00
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open Idents
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2010-06-21 18:19:58 +02:00
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open Types
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open Location
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open Minils
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open Mls_utils
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2010-06-21 18:19:58 +02:00
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%}
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%token DOT LPAREN RPAREN LBRACE RBRACE COLON SEMICOL
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%token EQUAL EQUALEQUAL BARBAR COMMA BAR LET TEL
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%token <string> CONSTRUCTOR
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%token <string> NAME
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%token <int> INT
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%token <float> FLOAT
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%token <bool> BOOL
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%token <string * string> PRAGMA
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%token TYPE NODE RETURNS VAR OPEN
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%token FBY PRE WHEN
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%token OR STAR NOT
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%token AMPERSAND
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%token AMPERAMPER
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%token RESET
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%token IF THEN ELSE
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%token DOUBLE_LESS DOUBLE_GREATER
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%token ARROW
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%token MERGE
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%token POWER
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%token AROBASE
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%token WITH
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%token DOTDOT
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%token DEFAULT
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%token LBRACKET RBRACKET
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%token MAP FOLD MAPFOLD
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%token <string> PREFIX
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%token <string> INFIX0
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%token <string> INFIX1
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%token <string> INFIX2
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%token <string> SUBTRACTIVE
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%token <string> INFIX3
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%token <string> INFIX4
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%token EOF
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%right AROBASE
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%left ELSE
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%left OR
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%left AMPERSAND
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%left INFIX0 EQUAL
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%right INFIX1 EQUALEQUAL BARBAR AMPERAMPER
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%left INFIX2 prefixs
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%left STAR INFIX3
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%left INFIX4
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%left WHEN
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%right FBY
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%right PRE
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%right POWER
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%start program
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%type <Minils.program> program
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%%
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/** Tools **/
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%inline slist(S, x) : l=separated_list(S, x) {l}
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%inline snlist(S, x) : l=separated_nonempty_list(S, x) {l}
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%inline tuple(x) : LPAREN h=x COMMA t=snlist(COMMA,x) RPAREN { h::t }
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%inline option(P,x):
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|/* empty */ { None }
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| P v=x { Some(v) }
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qualified(x) :
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| n=x { Name(n) }
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| m=CONSTRUCTOR DOT n=x { Modname({ qual = m; id = n }) }
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structure(field): LBRACE s=snlist(SEMICOL,field) RBRACE {s}
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localize(x): y=x { y, (Loc($startpos(y),$endpos(y))) }
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program:
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| pragma_headers open_modules type_decs node_decs EOF /*TODO const decs */
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{{ p_pragmas = List.rev $1;
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p_opened = List.rev $2;
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p_types = $3;
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p_nodes = $4;
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p_consts = []}} /*TODO consts dans program*/
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pragma_headers: l=list(PRAGMA) {l}
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open_modules: l=list(opens) {l}
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opens: OPEN c=CONSTRUCTOR {c}
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name: n=NAME | LPAREN n=infix_ RPAREN | LPAREN n=prefix_ RPAREN { n }
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ident: n=name { ident_of_name n }
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field_type : n=NAME COLON t=type_ident { mk_field n t }
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type_ident: NAME { Tid(Name($1)) }
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type_decs: t=list(type_dec) {t}
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type_dec:
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| TYPE n=NAME
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{ mk_type_dec ~loc:(Loc ($startpos,$endpos)) ~type_desc:Type_abs n }
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| TYPE n=NAME EQUAL e=snlist(BAR,NAME)
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{ mk_type_dec ~loc:(Loc ($startpos,$endpos)) ~type_desc:(Type_enum e) n }
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| TYPE n=NAME EQUAL s=structure(field_type)
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{ mk_type_dec ~loc:(Loc ($startpos,$endpos)) ~type_desc:(Type_struct s) n }
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node_decs: ns=list(node_dec) {ns}
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node_dec:
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NODE n=name p=params(n_param) LPAREN args=args RPAREN
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RETURNS LPAREN out=args RPAREN vars=loc_vars eqs=equs
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{ mk_node ~input:args ~output:out ~local:vars
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~eq:eqs ~loc:(Loc ($startpos,$endpos)) n }
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args_t: SEMICOL p=args {p}
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args:
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| /* empty */ {[]}
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| h=var t=loption(args_t) {h@t}
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loc_vars_t: SEMICOL h=var t=loc_vars_t {h@t}
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loc_vars_h: VAR h=var t=loc_vars_t {h@t}
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loc_vars: l=loption(loc_vars_h) {l}
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var:
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| ns=snlist(COMMA, NAME) COLON t=type_ident
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{ List.map (fun id -> mk_var_dec (ident_of_name id) t) ns }
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equs: LET e=slist(SEMICOL, equ) TEL { e }
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equ: p=pat EQUAL e=exp { mk_equation ~loc:(Loc ($startpos,$endpos)) p e }
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pat:
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| n=NAME {Evarpat (ident_of_name n)}
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| LPAREN p=snlist(COMMA, pat) RPAREN {Etuplepat p}
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longname: l=qualified(name) {l} /* qualified var (not a constructor) */
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constructor: /* of type longname */
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| ln=qualified(CONSTRUCTOR) {ln}
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| b=BOOL { Name(if b then "true" else "false") }
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const:
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| INT { Cint($1) }
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| FLOAT { Cfloat($1) }
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| constructor { Cconstr($1) }
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exps: LPAREN e=slist(COMMA, exp) RPAREN {e}
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field_exp: longname EQUAL exp { ($1, $3) }
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simple_exp:
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| e=_simple_exp {mk_exp e ~loc:(Loc ($startpos,$endpos)) }
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_simple_exp:
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| NAME { Evar (ident_of_name $1) }
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| s=structure(field_exp) { Estruct s }
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| t=tuple(exp) { Eapp(mk_op ~op_kind:Etuple, t, None) }
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| LPAREN e=_exp RPAREN { e }
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exp:
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| e=simple_exp { e }
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| e=_exp { mk_exp e ~loc:(Loc ($startpos,$endpos)) }
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_exp:
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| e=simple_exp { e }
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| c=const { Econst c }
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| const FBY exp { Efby(Some($1),$3) }
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| PRE exp { Efby(None,$2) }
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| op=funop a=exps r=reset { Ecall(op, a, r) }
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| e1=exp i_op=infix e2=exp
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{ Eapp(mk_op ~op_kind:Efun i_op, [e1; e2], None) }
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| p_op=prefix e=exp %prec prefixs
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{ Eapp(mk_op ~op_kind:Efun p_op, [e], None) }
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| IF e1=exp THEN e2=exp ELSE e3=exp { Eifthenelse(e1, e2, e3) }
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| e=simple_exp DOT m=longname { Efield(e, m) }
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| e=exp WHEN c=constructor LPAREN n=ident RPAREN
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{ Ewhen(e, c, n) }
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| MERGE n=ident h=handlers { Emerge(n, h) }
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| LPAREN r=exp WITH DOT ln=longname EQUAL nv=exp
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{ Efield_update(ln, r, nv) }
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| op=array_op { Earray_op op }
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| LBRACKET es=slist(COMMA, exp) RBRACKET { Earray es }
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array_op:
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| e=exp POWER p=e_param { Erepeat(p, e) }
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| e=simple_exp i=indexes(e_param) { Eselect(i, e) }
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| e=exp i=indexes(exp) DEFAULT d=exp { Eselect_dyn(i, e ,d) }
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| LPAREN e=exp WITH i=indexes(e_param) EQUAL nv=exp { Eupdate(i, e, nv) }
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| e=simple_exp LBRACKET i1=e_param DOTDOT i2=e_param RBRACKET
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{ Eselect_slice(i1, i2, e) }
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| e1=exp AROBASE e2=exp { Econcat(e1,e2) }
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| LPAREN f=iterator LPAREN op=funop RPAREN
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DOUBLE_LESS p=e_param DOUBLE_GREATER
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RPAREN a=exps r=reset { Eiterator(f,op,p,a,r) }
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/* Static indexes [p1][p2]... */
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indexes(param): is=nonempty_list(index(param)) { is }
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index(param): LBRACKET p=param RBRACKET { p }
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/* Merge handlers ( B -> e)( C -> ec)... */
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handlers: hs=nonempty_list(handler) { hs }
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handler: LPAREN c=constructor ARROW e=exp RPAREN { c,e }
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iterator:
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| MAP { Imap }
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| FOLD { Ifold }
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| MAPFOLD { Imapfold }
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reset: r=option(RESET,ident) { r }
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funop: ln=longname p=params(e_param) { mk_op ~op_kind:Enode ~op_params:p ln }
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e_param: e=exp { static_exp_of_exp e }
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n_param: n=NAME { mk_param n }
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params(param):
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| /*empty*/ { [] }
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| DOUBLE_LESS p=slist(COMMA, param) DOUBLE_GREATER { p }
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/*Inlining is compulsory in order to preserve priorities*/
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%inline infix: op=infix_ { Name(op) }
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%inline infix_:
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| op=INFIX0 | op=INFIX1 | op=INFIX2 | op=INFIX3 | op=INFIX4 { op }
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| STAR { "*" }
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| EQUAL { "=" }
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| EQUALEQUAL { "==" }
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| AMPERSAND { "&" } | AMPERAMPER { "&&" }
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| OR { "or" } | BARBAR { "||" }
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prefix: op=prefix_ { Name(op) }
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prefix_:
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| op = PREFIX { op }
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| NOT { "not" }
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| op = SUBTRACTIVE { "~" ^ op } /*TODO test 3 * -2 and co */
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%%
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