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
  ]


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 * bool
  | 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	]
21
22
23	and pexpr = pexpr' located
24	and pexpr' =
25	\| Forget of pexpr * ppat
26	(* CDuce is a Lambda-calculus ... *)
27	\| Var of string
28	\| Apply of pexpr * pexpr
29	\| Abstraction of abstr
30
31	(* Data constructors *)
32	\| Cst of Types.const
33	\| Pair of pexpr * pexpr
34	\| Xml of pexpr * pexpr
35	\| RecordLitt of (Types.label * pexpr) list
36
37	(* Data destructors *)
38	\| Op of string * pexpr list
39	\| Match of pexpr * branches
40	\| Map of pexpr * branches
41	\| Dot of (pexpr* Types.label)
42
43	(* Exceptions *)
44	\| Try of pexpr * branches
45
46	and abstr = {
47	fun_name : string option;
48	fun_iface : (ppat * ppat) list;
49	fun_body : branches
50	}
51
52	and branches = (ppat * pexpr) list
53
54	(* A common syntactic class for patterns and types *)
55
56	and ppat = ppat' located
57	and ppat' =
58	\| PatVar of string
59	\| Recurs of ppat * (string * ppat) list
60	\| Internal of Types.descr
61	\| Or of ppat * ppat
62	\| And of ppat * ppat * bool
63	\| Diff of ppat * ppat
64	\| Prod of ppat * ppat
65	\| XmlT of ppat * ppat
66	\| Arrow of ppat * ppat
67	\| Record of Types.label * bool * ppat
68	\| Capture of Patterns.capture
69	\| Constant of Patterns.capture * Types.const
70	\| Regexp of regexp * ppat
71
72	and regexp =
73	\| Epsilon
74	\| Elem of ppat
75	\| Seq of regexp * regexp
76	\| Alt of regexp * regexp
77	\| Star of regexp
78	\| WeakStar of regexp
79	\| SeqCapture of Patterns.capture * regexp
80