viewcvs.cgi/parser/ast.ml

(*  Abstract syntax as produced by the parsed *)

open Location

type pprog = pmodule_item list

and pmodule_item = pmodule_item' located
and pmodule_item' =
  | TypeDecl of string * ppat
  | PatDecl of string * ppat
  | FunDecl of abstr
  | LetDecl of ppat * pexpr
  | EvalStatement of pexpr
  | Debug of debug_directive
and debug_directive =
  [ `Filter of ppat * ppat
  | `Accept of ppat
  | `Compile of ppat * ppat list 
  | `Normal_record of ppat
  | `Compile2 of ppat * ppat list
  ]


and pexpr = pexpr' located
and pexpr' = 
  | Forget of pexpr * ppat    
  (* CDuce is a Lambda-calculus ... *)
  | Var of string
  | Apply of pexpr * pexpr
  | Abstraction of abstr
      
  (* Data constructors *)
  | Cst of Types.const
  | Pair of pexpr * pexpr
  | Xml of pexpr * pexpr
  | RecordLitt of (Types.label * pexpr) list
      
  (* Data destructors *)
  | Op of string * pexpr list
  | Match of pexpr * branches
  | Map of pexpr * branches
  | Dot of (pexpr* Types.label)

  (* Exceptions *)
  | Try of pexpr * branches

and abstr = { 
  fun_name : string option; 
  fun_iface : (ppat * ppat) list;
  fun_body : branches
}

and branches = (ppat * pexpr) list
    
(* A common syntactic class for patterns and types *) 

and ppat = ppat' located
and ppat' =
  | PatVar of string
  | Recurs of ppat * (string * ppat) list
  | Internal of Types.descr
  | Or of ppat * ppat
  | And of ppat * ppat
  | Diff of ppat * ppat
  | Prod of ppat * ppat
  | XmlT of ppat * ppat
  | Arrow of ppat * ppat
  | Record of Types.label * bool * ppat
  | Capture of Patterns.capture
  | Constant of Patterns.capture * Types.const
  | Regexp of regexp * ppat

and regexp =
  | Epsilon
  | Elem of ppat
  | Seq of regexp * regexp
  | Alt of regexp * regexp
  | Star of regexp
  | WeakStar of regexp
  | SeqCapture of Patterns.capture * regexp
 
1	(* Abstract syntax as produced by the parsed *)
2
3	open Location
4
5	type pprog = pmodule_item list
6
7	and pmodule_item = pmodule_item' located
8	and pmodule_item' =
9	\| TypeDecl of string * ppat
10	\| PatDecl of string * ppat
11	\| FunDecl of abstr
12	\| LetDecl of ppat * pexpr
13	\| EvalStatement of pexpr
14	\| Debug of debug_directive
15	and debug_directive =
16	[ `Filter of ppat * ppat
17	\| `Accept of ppat
18	\| `Compile of ppat * ppat list
19	\| `Normal_record of ppat
20	\| `Compile2 of ppat * ppat list
21	]
22
23
24	and pexpr = pexpr' located
25	and pexpr' =
26	\| Forget of pexpr * ppat
27	(* CDuce is a Lambda-calculus ... *)
28	\| Var of string
29	\| Apply of pexpr * pexpr
30	\| Abstraction of abstr
31
32	(* Data constructors *)
33	\| Cst of Types.const
34	\| Pair of pexpr * pexpr
35	\| Xml of pexpr * pexpr
36	\| RecordLitt of (Types.label * pexpr) list
37
38	(* Data destructors *)
39	\| Op of string * pexpr list
40	\| Match of pexpr * branches
41	\| Map of pexpr * branches
42	\| Dot of (pexpr* Types.label)
43
44	(* Exceptions *)
45	\| Try of pexpr * branches
46
47	and abstr = {
48	fun_name : string option;
49	fun_iface : (ppat * ppat) list;
50	fun_body : branches
51	}
52
53	and branches = (ppat * pexpr) list
54
55	(* A common syntactic class for patterns and types *)
56
57	and ppat = ppat' located
58	and ppat' =
59	\| PatVar of string
60	\| Recurs of ppat * (string * ppat) list
61	\| Internal of Types.descr
62	\| Or of ppat * ppat
63	\| And of ppat * ppat
64	\| Diff of ppat * ppat
65	\| Prod of ppat * ppat
66	\| XmlT of ppat * ppat
67	\| Arrow of ppat * ppat
68	\| Record of Types.label * bool * ppat
69	\| Capture of Patterns.capture
70	\| Constant of Patterns.capture * Types.const
71	\| Regexp of regexp * ppat
72
73	and regexp =
74	\| Epsilon
75	\| Elem of ppat
76	\| Seq of regexp * regexp
77	\| Alt of regexp * regexp
78	\| Star of regexp
79	\| WeakStar of regexp
80	\| SeqCapture of Patterns.capture * regexp
81