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[smlnj] Annotation of /sml/trunk/src/cm/semant/members.sml
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Annotation of /sml/trunk/src/cm/semant/members.sml

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1 : blume 267 (*
2 :     * Collections of members in CM descriptions.
3 :     * Involves:
4 :     * - running tools
5 :     * - fully analyzing sub-groups and sub-libraries
6 :     * - parsing ML files and getting their export lists
7 :     *
8 :     * (C) 1999 Lucent Technologies, Bell Laboratories
9 :     *
10 :     * Author: Matthias Blume (blume@kurims.kyoto-u.ac.jp)
11 :     *)
12 :     signature MEMBERCOLLECTION = sig
13 :    
14 : blume 278 type symbol = Symbol.symbol
15 : blume 270 type smlinfo = SmlInfo.info
16 : blume 269
17 : blume 267 type collection
18 :    
19 : blume 278 type farlooker =
20 :     AbsPath.t ->
21 :     (DependencyGraph.farnode * DependencyGraph.env) SymbolMap.map
22 :    
23 : blume 274 val empty : collection
24 :    
25 : blume 278 val expandOne : farlooker
26 : blume 275 -> { sourcepath: AbsPath.t, group: AbsPath.t, class: string option,
27 : blume 277 error : string -> (PrettyPrint.ppstream -> unit) -> unit }
28 : blume 270 -> collection
29 : blume 275 val sequential : collection * collection * (string -> unit) -> collection
30 : blume 267
31 : blume 268 val num_look : collection -> string -> int
32 : blume 278 val ml_look : collection -> symbol -> bool
33 : blume 268 val cm_look : collection -> string -> bool
34 : blume 267 end
35 :    
36 :     structure MemberCollection :> MEMBERCOLLECTION = struct
37 :    
38 : blume 269 structure DG = DependencyGraph
39 : blume 277 structure EM = GenericVC.ErrorMsg
40 : blume 278 structure CBE = GenericVC.BareEnvironment
41 : blume 267
42 : blume 270 type smlinfo = SmlInfo.info
43 : blume 275 type symbol = Symbol.symbol
44 : blume 267
45 : blume 269 datatype collection =
46 : blume 278 COLLECTION of { subexports: (DG.farnode * DG.env) SymbolMap.map,
47 : blume 269 smlfiles: smlinfo list,
48 :     localdefs: smlinfo SymbolMap.map }
49 :    
50 : blume 278 type farlooker =
51 :     AbsPath.t ->
52 :     (DependencyGraph.farnode * DependencyGraph.env) SymbolMap.map
53 :    
54 : blume 274 val empty =
55 :     COLLECTION { subexports = SymbolMap.empty,
56 :     smlfiles = [],
57 :     localdefs = SymbolMap.empty }
58 :    
59 : blume 278 fun convertEnv cmenv = let
60 :     fun modulesOnly sl = let
61 :     fun addModule (sy, set) =
62 :     case Symbol.nameSpace sy of
63 :     (Symbol.STRspace | Symbol.SIGspace |
64 :     Symbol.FCTspace | Symbol.FSIGspace) =>
65 :     SymbolSet.add (set, sy)
66 :     | _ => set
67 :     in
68 :     foldl addModule SymbolSet.empty sl
69 :     end
70 :     fun cvt CBE.CM_NONE = NONE
71 :     | cvt (CBE.CM_ENV { look, symbols }) =
72 :     SOME (DG.FCTENV { looker = cvt o look,
73 :     domain = modulesOnly o symbols })
74 :     in
75 :     valOf (cvt cmenv)
76 :     end
77 :    
78 : blume 275 fun sequential (COLLECTION c1, COLLECTION c2, error) = let
79 :     fun describeSymbol (s, r) = let
80 :     val ns = Symbol.nameSpace s
81 :     in
82 :     Symbol.nameSpaceToString ns :: " " :: Symbol.name s :: r
83 :     end
84 : blume 278 fun se_error (s, x as ((_, n1), _), ((_, n2), _)) =
85 : blume 275 (error (concat (describeSymbol
86 :     (s, [" imported from ", DG.describeNode n1,
87 :     " and also from ", DG.describeNode n2])));
88 :     x)
89 : blume 269 val se_union = SymbolMap.unionWithi se_error
90 : blume 270 fun ld_error (s, f1, f2) =
91 : blume 275 (error (concat (describeSymbol
92 :     (s, [" defined in ", SmlInfo.describe f1,
93 :     " and also in ", SmlInfo.describe f2])));
94 :     f1)
95 : blume 269 val ld_union = SymbolMap.unionWithi ld_error
96 :     in
97 :     COLLECTION { subexports = se_union (#subexports c1, #subexports c2),
98 :     smlfiles = #smlfiles c1 @ #smlfiles c2,
99 :     localdefs = ld_union (#localdefs c1, #localdefs c2) }
100 :     end
101 :    
102 : blume 275 fun expandOne gexports { sourcepath, group, class, error } = let
103 : blume 274 fun noPrimitive () = let
104 : blume 277 fun e0 s = error s EM.nullErrorBody
105 :     val expansions = PrivateTools.expand e0 (sourcepath, class)
106 : blume 274 fun exp2coll (PrivateTools.GROUP p) =
107 :     COLLECTION { subexports = gexports p,
108 :     smlfiles = [],
109 :     localdefs = SymbolMap.empty }
110 :     | exp2coll (PrivateTools.SMLSOURCE src) = let
111 :     val { sourcepath = p, history = h, share = s } = src
112 : blume 276 val i = SmlInfo.info
113 : blume 274 Policy.default
114 : blume 275 { sourcepath = p, group = group,
115 :     error = error, history = h,
116 : blume 277 share = s }
117 : blume 274 val exports = SmlInfo.exports i
118 :     fun addLD (s, m) = SymbolMap.insert (m, s, i)
119 :     val ld = SymbolSet.foldl addLD SymbolMap.empty exports
120 :     in
121 :     COLLECTION { subexports = SymbolMap.empty,
122 :     smlfiles = [i],
123 :     localdefs = ld }
124 :     end
125 :     val collections = map exp2coll expansions
126 : blume 277 fun combine (c1, c2) = sequential (c2, c1, e0)
127 : blume 274 in
128 :     foldl combine empty collections
129 :     end
130 :     in
131 :     if isSome class then noPrimitive ()
132 :     else case Primitive.fromString (AbsPath.spec sourcepath) of
133 :     SOME p => let
134 : blume 270 val exports = Primitive.exports p
135 : blume 278 fun addFN (s, m) = let
136 :     val cmenv = Primitive.lookup p s
137 :     val env = convertEnv cmenv
138 :     in
139 :     SymbolMap.insert (m, s, ((NONE, DG.PNODE p), env))
140 :     end
141 : blume 270 val se = SymbolSet.foldl addFN SymbolMap.empty exports
142 :     in
143 :     COLLECTION { subexports = se,
144 :     smlfiles = [],
145 :     localdefs = SymbolMap.empty }
146 :     end
147 : blume 274 | NONE => noPrimitive ()
148 : blume 270 end
149 :    
150 : blume 268 fun num_look (c: collection) (s: string) = 0
151 : blume 269
152 : blume 268 fun cm_look (c: collection) (s: string) = false
153 : blume 269
154 :     fun ml_look (COLLECTION { subexports, localdefs, ... }) s =
155 :     isSome (SymbolMap.find (subexports, s)) orelse
156 :     isSome (SymbolMap.find (localdefs, s))
157 : blume 267 end

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