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reanalyze: remove global TypeDependencies buffer
Record type dependency edges immediately instead of buffering them in a global ref and flushing at end-of-file. Note: this reorders debug output in reanalyze logs: addTypeReference lines now appear next to extendTypeDependencies, rather than being emitted in a later end-of-file flush. Signed-Off-By: Cristiano Calcagno <cristiano.calcagno@gmail.com>
1 parent 683aeec commit 0586a95

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4 files changed

+59
-72
lines changed

4 files changed

+59
-72
lines changed

analysis/reanalyze/src/DceFileProcessing.ml

Lines changed: 5 additions & 7 deletions
Original file line numberDiff line numberDiff line change
@@ -19,8 +19,8 @@ let module_name_tagged (file : file_context) =
1919

2020
(* ===== Signature processing ===== *)
2121

22-
let processSignature ~config ~decls ~(file : file_context) ~doValues ~doTypes
23-
(signature : Types.signature) =
22+
let processSignature ~config ~decls ~refs ~(file : file_context) ~doValues
23+
~doTypes (signature : Types.signature) =
2424
let dead_common_file : FileContext.t =
2525
{
2626
source_path = file.source_path;
@@ -31,7 +31,7 @@ let processSignature ~config ~decls ~(file : file_context) ~doValues ~doTypes
3131
signature
3232
|> List.iter (fun sig_item ->
3333
DeadValue.processSignatureItem ~config ~decls ~file:dead_common_file
34-
~doValues ~doTypes ~moduleLoc:Location.none
34+
~refs ~doValues ~doTypes ~moduleLoc:Location.none
3535
~modulePath:ModulePath.initial
3636
~path:[module_name_tagged file]
3737
sig_item)
@@ -67,22 +67,20 @@ let process_cmt_file ~config ~(file : file_context) ~cmtFilePath
6767
(match cmt_infos.cmt_annots with
6868
| Interface signature ->
6969
CollectAnnotations.signature ~state:annotations ~config signature;
70-
processSignature ~config ~decls ~file ~doValues:true ~doTypes:true
70+
processSignature ~config ~decls ~refs ~file ~doValues:true ~doTypes:true
7171
signature.sig_type
7272
| Implementation structure ->
7373
let cmtiExists =
7474
Sys.file_exists ((cmtFilePath |> Filename.remove_extension) ^ ".cmti")
7575
in
7676
CollectAnnotations.structure ~state:annotations ~config
7777
~doGenType:(not cmtiExists) structure;
78-
processSignature ~config ~decls ~file ~doValues:true ~doTypes:false
78+
processSignature ~config ~decls ~refs ~file ~doValues:true ~doTypes:false
7979
structure.str_type;
8080
let doExternals = false in
8181
DeadValue.processStructure ~config ~decls ~refs ~file_deps ~cross_file
8282
~file:dead_common_file ~doTypes:true ~doExternals
8383
~cmt_value_dependencies:cmt_infos.cmt_value_dependencies structure
8484
| _ -> ());
85-
DeadType.TypeDependencies.forceDelayedItems ~config ~refs;
86-
DeadType.TypeDependencies.clear ();
8785
(* Return builders - caller will merge and freeze *)
8886
{annotations; decls; refs; cross_file; file_deps}

analysis/reanalyze/src/DeadType.ml

Lines changed: 24 additions & 35 deletions
Original file line numberDiff line numberDiff line change
@@ -16,32 +16,19 @@ let addTypeReference ~config ~refs ~posFrom ~posTo =
1616
(posTo |> Pos.toString);
1717
References.add_type_ref refs ~posTo ~posFrom
1818

19-
module TypeDependencies = struct
20-
let delayedItems = ref []
21-
let add loc1 loc2 = delayedItems := (loc1, loc2) :: !delayedItems
22-
let clear () = delayedItems := []
23-
24-
let processTypeDependency ~config ~refs
25-
( ({loc_start = posTo; loc_ghost = ghost1} : Location.t),
26-
({loc_start = posFrom; loc_ghost = ghost2} : Location.t) ) =
27-
if (not ghost1) && (not ghost2) && posTo <> posFrom then
28-
addTypeReference ~config ~refs ~posTo ~posFrom
29-
30-
let forceDelayedItems ~config ~refs =
31-
List.iter (processTypeDependency ~config ~refs) !delayedItems
32-
end
33-
34-
let extendTypeDependencies ~config (loc1 : Location.t) (loc2 : Location.t) =
35-
if loc1.loc_start <> loc2.loc_start then (
19+
let extendTypeDependencies ~config ~refs (loc1 : Location.t) (loc2 : Location.t)
20+
=
21+
let {Location.loc_start = posTo; loc_ghost = ghost1} = loc1 in
22+
let {Location.loc_start = posFrom; loc_ghost = ghost2} = loc2 in
23+
if (not ghost1) && (not ghost2) && posTo <> posFrom then (
3624
if config.DceConfig.cli.debug then
37-
Log_.item "extendTypeDependencies %s --> %s@."
38-
(loc1.loc_start |> Pos.toString)
39-
(loc2.loc_start |> Pos.toString);
40-
TypeDependencies.add loc1 loc2)
25+
Log_.item "extendTypeDependencies %s --> %s@." (posTo |> Pos.toString)
26+
(posFrom |> Pos.toString);
27+
addTypeReference ~config ~refs ~posFrom ~posTo)
4128

4229
(* Type dependencies between Foo.re and Foo.rei *)
43-
let addTypeDependenciesAcrossFiles ~config ~file ~pathToType ~loc ~typeLabelName
44-
=
30+
let addTypeDependenciesAcrossFiles ~config ~refs ~file ~pathToType ~loc
31+
~typeLabelName =
4532
let isInterface = file.FileContext.is_interface in
4633
if not isInterface then (
4734
let path_1 = pathToType |> DcePath.moduleToInterface in
@@ -53,34 +40,35 @@ let addTypeDependenciesAcrossFiles ~config ~file ~pathToType ~loc ~typeLabelName
5340
match TypeLabels.find path2 with
5441
| None -> ()
5542
| Some loc2 ->
56-
extendTypeDependencies ~config loc loc2;
43+
extendTypeDependencies ~config ~refs loc loc2;
5744
if not Config.reportTypesDeadOnlyInInterface then
58-
extendTypeDependencies ~config loc2 loc)
45+
extendTypeDependencies ~config ~refs loc2 loc)
5946
| Some loc1 ->
60-
extendTypeDependencies ~config loc loc1;
47+
extendTypeDependencies ~config ~refs loc loc1;
6148
if not Config.reportTypesDeadOnlyInInterface then
62-
extendTypeDependencies ~config loc1 loc)
49+
extendTypeDependencies ~config ~refs loc1 loc)
6350
else
6451
let path_1 = pathToType |> DcePath.moduleToImplementation in
6552
let path1 = typeLabelName :: path_1 in
6653
match TypeLabels.find path1 with
6754
| None -> ()
6855
| Some loc1 ->
69-
extendTypeDependencies ~config loc1 loc;
56+
extendTypeDependencies ~config ~refs loc1 loc;
7057
if not Config.reportTypesDeadOnlyInInterface then
71-
extendTypeDependencies ~config loc loc1
58+
extendTypeDependencies ~config ~refs loc loc1
7259

7360
(* Add type dependencies between implementation and interface in inner module *)
74-
let addTypeDependenciesInnerModule ~config ~pathToType ~loc ~typeLabelName =
61+
let addTypeDependenciesInnerModule ~config ~refs ~pathToType ~loc ~typeLabelName
62+
=
7563
let path = typeLabelName :: pathToType in
7664
match TypeLabels.find path with
7765
| Some loc2 ->
78-
extendTypeDependencies ~config loc loc2;
66+
extendTypeDependencies ~config ~refs loc loc2;
7967
if not Config.reportTypesDeadOnlyInInterface then
80-
extendTypeDependencies ~config loc2 loc
68+
extendTypeDependencies ~config ~refs loc2 loc
8169
| None -> TypeLabels.add path loc
8270

83-
let addDeclaration ~config ~decls ~file ~(modulePath : ModulePath.t)
71+
let addDeclaration ~config ~decls ~refs ~file ~(modulePath : ModulePath.t)
8472
~(typeId : Ident.t) ~(typeKind : Types.type_kind) =
8573
let pathToType =
8674
(typeId |> Ident.name |> Name.create)
@@ -90,8 +78,9 @@ let addDeclaration ~config ~decls ~file ~(modulePath : ModulePath.t)
9078
~(loc : Location.t) =
9179
addDeclaration_ ~config ~decls ~file ~declKind ~path:pathToType ~loc
9280
~moduleLoc:modulePath.loc ~posAdjustment typeLabelName;
93-
addTypeDependenciesAcrossFiles ~config ~file ~pathToType ~loc ~typeLabelName;
94-
addTypeDependenciesInnerModule ~config ~pathToType ~loc ~typeLabelName;
81+
addTypeDependenciesAcrossFiles ~config ~refs ~file ~pathToType ~loc
82+
~typeLabelName;
83+
addTypeDependenciesInnerModule ~config ~refs ~pathToType ~loc ~typeLabelName;
9584
TypeLabels.add (typeLabelName :: pathToType) loc
9685
in
9786
match typeKind with

analysis/reanalyze/src/DeadValue.ml

Lines changed: 7 additions & 7 deletions
Original file line numberDiff line numberDiff line change
@@ -242,12 +242,12 @@ let rec getSignature (moduleType : Types.module_type) =
242242
| Mty_functor (_, _mtParam, mt) -> getSignature mt
243243
| _ -> []
244244

245-
let rec processSignatureItem ~config ~decls ~file ~doTypes ~doValues ~moduleLoc
246-
~(modulePath : ModulePath.t) ~path (si : Types.signature_item) =
245+
let rec processSignatureItem ~config ~decls ~refs ~file ~doTypes ~doValues
246+
~moduleLoc ~(modulePath : ModulePath.t) ~path (si : Types.signature_item) =
247247
match si with
248248
| Sig_type (id, t, _) when doTypes ->
249249
if !Config.analyzeTypes then
250-
DeadType.addDeclaration ~config ~decls ~file ~modulePath ~typeId:id
250+
DeadType.addDeclaration ~config ~decls ~refs ~file ~modulePath ~typeId:id
251251
~typeKind:t.type_kind
252252
| Sig_value (id, {Types.val_loc = loc; val_kind = kind; val_type})
253253
when doValues ->
@@ -283,7 +283,7 @@ let rec processSignatureItem ~config ~decls ~file ~doTypes ~doValues ~moduleLoc
283283
if collect then
284284
getSignature moduleType
285285
|> List.iter
286-
(processSignatureItem ~config ~decls ~file ~doTypes ~doValues
286+
(processSignatureItem ~config ~decls ~refs ~file ~doTypes ~doValues
287287
~moduleLoc ~modulePath:modulePath'
288288
~path:((id |> Ident.name |> Name.create) :: path))
289289
| _ -> ()
@@ -323,7 +323,7 @@ let traverseStructure ~config ~decls ~refs ~file_deps ~cross_file ~file ~doTypes
323323
| Mty_signature signature ->
324324
signature
325325
|> List.iter
326-
(processSignatureItem ~config ~decls ~file ~doTypes
326+
(processSignatureItem ~config ~decls ~refs ~file ~doTypes
327327
~doValues:false ~moduleLoc:mb_expr.mod_loc
328328
~modulePath:modulePath'
329329
~path:
@@ -361,7 +361,7 @@ let traverseStructure ~config ~decls ~refs ~file_deps ~cross_file ~file ~doTypes
361361
typeDeclarations
362362
|> List.iter
363363
(fun (typeDeclaration : Typedtree.type_declaration) ->
364-
DeadType.addDeclaration ~config ~decls ~file
364+
DeadType.addDeclaration ~config ~decls ~refs ~file
365365
~modulePath ~typeId:typeDeclaration.typ_id
366366
~typeKind:typeDeclaration.typ_type.type_kind);
367367
None
@@ -373,7 +373,7 @@ let traverseStructure ~config ~decls ~refs ~file_deps ~cross_file ~file ~doTypes
373373
in
374374
incl_type
375375
|> List.iter
376-
(processSignatureItem ~config ~decls ~file ~doTypes
376+
(processSignatureItem ~config ~decls ~refs ~file ~doTypes
377377
~doValues:false (* TODO: also values? *)
378378
~moduleLoc:incl_mod.mod_loc ~modulePath
379379
~path:currentPath)

tests/analysis_tests/tests-reanalyze/deadcode/expected/deadcode.txt

Lines changed: 23 additions & 23 deletions
Original file line numberDiff line numberDiff line change
@@ -67,14 +67,14 @@
6767
Scanning DeadRT.cmti Source:DeadRT.resi
6868
addVariantCaseDeclaration Root DeadRT.resi:2:2 path:DeadRT.moduleAccessPath
6969
extendTypeDependencies DeadRT.res:2:2 --> DeadRT.resi:2:2
70+
addTypeReference DeadRT.resi:2:2 --> DeadRT.res:2:2
7071
extendTypeDependencies DeadRT.resi:2:2 --> DeadRT.res:2:2
72+
addTypeReference DeadRT.res:2:2 --> DeadRT.resi:2:2
7173
addVariantCaseDeclaration Kaboom DeadRT.resi:3:2 path:DeadRT.moduleAccessPath
7274
extendTypeDependencies DeadRT.res:3:2 --> DeadRT.resi:3:2
75+
addTypeReference DeadRT.resi:3:2 --> DeadRT.res:3:2
7376
extendTypeDependencies DeadRT.resi:3:2 --> DeadRT.res:3:2
7477
addTypeReference DeadRT.res:3:2 --> DeadRT.resi:3:2
75-
addTypeReference DeadRT.resi:3:2 --> DeadRT.res:3:2
76-
addTypeReference DeadRT.res:2:2 --> DeadRT.resi:2:2
77-
addTypeReference DeadRT.resi:2:2 --> DeadRT.res:2:2
7878
Scanning DeadTest.cmt Source:DeadTest.res
7979
addValueDeclaration +fortytwo DeadTest.res:2:4 path:+DeadTest
8080
addValueDeclaration +fortyTwoButExported DeadTest.res:5:4 path:+DeadTest
@@ -117,7 +117,9 @@
117117
addVariantCaseDeclaration A DeadTest.res:35:11 path:+DeadTest.VariantUsedOnlyInImplementation.t
118118
addVariantCaseDeclaration A DeadTest.res:38:11 path:+DeadTest.VariantUsedOnlyInImplementation.t
119119
extendTypeDependencies DeadTest.res:38:11 --> DeadTest.res:35:11
120+
addTypeReference DeadTest.res:35:11 --> DeadTest.res:38:11
120121
extendTypeDependencies DeadTest.res:35:11 --> DeadTest.res:38:11
122+
addTypeReference DeadTest.res:38:11 --> DeadTest.res:35:11
121123
addValueDeclaration +a DeadTest.res:39:6 path:+DeadTest.VariantUsedOnlyInImplementation
122124
addTypeReference DeadTest.res:39:10 --> DeadTest.res:38:11
123125
addValueReference DeadTest.res:42:17 --> DeadTest.res:36:2
@@ -170,7 +172,9 @@
170172
addVariantCaseDeclaration A DeadTest.res:137:13 path:+DeadTest.WithInclude.T.t
171173
addVariantCaseDeclaration A DeadTest.res:137:13 path:+DeadTest.WithInclude.t
172174
extendTypeDependencies DeadTest.res:137:13 --> DeadTest.res:134:11
175+
addTypeReference DeadTest.res:134:11 --> DeadTest.res:137:13
173176
extendTypeDependencies DeadTest.res:134:11 --> DeadTest.res:137:13
177+
addTypeReference DeadTest.res:137:13 --> DeadTest.res:134:11
174178
addTypeReference DeadTest.res:142:7 --> DeadTest.res:134:11
175179
addValueDeclaration +x DeadTest.res:146:6 path:+DeadTest
176180
addValueDeclaration +y DeadTest.res:147:6 path:+DeadTest
@@ -203,10 +207,6 @@
203207
addValueReference DeadTest.res:36:2 --> DeadTest.res:39:6
204208
addValueReference DeadTest.res:60:2 --> DeadTest.res:64:6
205209
addValueReference DeadTest.res:61:2 --> DeadTest.res:63:6
206-
addTypeReference DeadTest.res:137:13 --> DeadTest.res:134:11
207-
addTypeReference DeadTest.res:134:11 --> DeadTest.res:137:13
208-
addTypeReference DeadTest.res:38:11 --> DeadTest.res:35:11
209-
addTypeReference DeadTest.res:35:11 --> DeadTest.res:38:11
210210
Scanning DeadTestBlacklist.cmt Source:DeadTestBlacklist.res
211211
addValueDeclaration +x DeadTestBlacklist.res:1:4 path:+DeadTestBlacklist
212212
Scanning DeadTestWithInterface.cmt Source:DeadTestWithInterface.res
@@ -234,35 +234,35 @@
234234
Scanning DeadTypeTest.cmti Source:DeadTypeTest.resi
235235
addVariantCaseDeclaration A DeadTypeTest.resi:2:2 path:DeadTypeTest.t
236236
extendTypeDependencies DeadTypeTest.res:2:2 --> DeadTypeTest.resi:2:2
237+
addTypeReference DeadTypeTest.resi:2:2 --> DeadTypeTest.res:2:2
237238
extendTypeDependencies DeadTypeTest.resi:2:2 --> DeadTypeTest.res:2:2
239+
addTypeReference DeadTypeTest.res:2:2 --> DeadTypeTest.resi:2:2
238240
addVariantCaseDeclaration B DeadTypeTest.resi:3:2 path:DeadTypeTest.t
239241
extendTypeDependencies DeadTypeTest.res:3:2 --> DeadTypeTest.resi:3:2
242+
addTypeReference DeadTypeTest.resi:3:2 --> DeadTypeTest.res:3:2
240243
extendTypeDependencies DeadTypeTest.resi:3:2 --> DeadTypeTest.res:3:2
244+
addTypeReference DeadTypeTest.res:3:2 --> DeadTypeTest.resi:3:2
241245
addValueDeclaration +a DeadTypeTest.resi:4:0 path:DeadTypeTest
242246
addVariantCaseDeclaration OnlyInImplementation DeadTypeTest.resi:7:2 path:DeadTypeTest.deadType
243247
extendTypeDependencies DeadTypeTest.res:7:2 --> DeadTypeTest.resi:7:2
248+
addTypeReference DeadTypeTest.resi:7:2 --> DeadTypeTest.res:7:2
244249
extendTypeDependencies DeadTypeTest.resi:7:2 --> DeadTypeTest.res:7:2
250+
addTypeReference DeadTypeTest.res:7:2 --> DeadTypeTest.resi:7:2
245251
addVariantCaseDeclaration OnlyInInterface DeadTypeTest.resi:8:2 path:DeadTypeTest.deadType
246252
extendTypeDependencies DeadTypeTest.res:8:2 --> DeadTypeTest.resi:8:2
253+
addTypeReference DeadTypeTest.resi:8:2 --> DeadTypeTest.res:8:2
247254
extendTypeDependencies DeadTypeTest.resi:8:2 --> DeadTypeTest.res:8:2
255+
addTypeReference DeadTypeTest.res:8:2 --> DeadTypeTest.resi:8:2
248256
addVariantCaseDeclaration InBoth DeadTypeTest.resi:9:2 path:DeadTypeTest.deadType
249257
extendTypeDependencies DeadTypeTest.res:9:2 --> DeadTypeTest.resi:9:2
258+
addTypeReference DeadTypeTest.resi:9:2 --> DeadTypeTest.res:9:2
250259
extendTypeDependencies DeadTypeTest.resi:9:2 --> DeadTypeTest.res:9:2
260+
addTypeReference DeadTypeTest.res:9:2 --> DeadTypeTest.resi:9:2
251261
addVariantCaseDeclaration InNeither DeadTypeTest.resi:10:2 path:DeadTypeTest.deadType
252262
extendTypeDependencies DeadTypeTest.res:10:2 --> DeadTypeTest.resi:10:2
263+
addTypeReference DeadTypeTest.resi:10:2 --> DeadTypeTest.res:10:2
253264
extendTypeDependencies DeadTypeTest.resi:10:2 --> DeadTypeTest.res:10:2
254265
addTypeReference DeadTypeTest.res:10:2 --> DeadTypeTest.resi:10:2
255-
addTypeReference DeadTypeTest.resi:10:2 --> DeadTypeTest.res:10:2
256-
addTypeReference DeadTypeTest.res:9:2 --> DeadTypeTest.resi:9:2
257-
addTypeReference DeadTypeTest.resi:9:2 --> DeadTypeTest.res:9:2
258-
addTypeReference DeadTypeTest.res:8:2 --> DeadTypeTest.resi:8:2
259-
addTypeReference DeadTypeTest.resi:8:2 --> DeadTypeTest.res:8:2
260-
addTypeReference DeadTypeTest.res:7:2 --> DeadTypeTest.resi:7:2
261-
addTypeReference DeadTypeTest.resi:7:2 --> DeadTypeTest.res:7:2
262-
addTypeReference DeadTypeTest.res:3:2 --> DeadTypeTest.resi:3:2
263-
addTypeReference DeadTypeTest.resi:3:2 --> DeadTypeTest.res:3:2
264-
addTypeReference DeadTypeTest.res:2:2 --> DeadTypeTest.resi:2:2
265-
addTypeReference DeadTypeTest.resi:2:2 --> DeadTypeTest.res:2:2
266266
Scanning DeadValueTest.cmt Source:DeadValueTest.res
267267
addValueDeclaration +valueAlive DeadValueTest.res:1:4 path:+DeadValueTest
268268
addValueDeclaration +valueDead DeadValueTest.res:2:4 path:+DeadValueTest
@@ -388,15 +388,15 @@
388388
Scanning FirstClassModulesInterface.cmti Source:FirstClassModulesInterface.resi
389389
addRecordLabelDeclaration x FirstClassModulesInterface.resi:3:2 path:FirstClassModulesInterface.record
390390
extendTypeDependencies FirstClassModulesInterface.res:2:2 --> FirstClassModulesInterface.resi:3:2
391+
addTypeReference FirstClassModulesInterface.resi:3:2 --> FirstClassModulesInterface.res:2:2
391392
extendTypeDependencies FirstClassModulesInterface.resi:3:2 --> FirstClassModulesInterface.res:2:2
393+
addTypeReference FirstClassModulesInterface.res:2:2 --> FirstClassModulesInterface.resi:3:2
392394
addRecordLabelDeclaration y FirstClassModulesInterface.resi:4:2 path:FirstClassModulesInterface.record
393395
extendTypeDependencies FirstClassModulesInterface.res:3:2 --> FirstClassModulesInterface.resi:4:2
396+
addTypeReference FirstClassModulesInterface.resi:4:2 --> FirstClassModulesInterface.res:3:2
394397
extendTypeDependencies FirstClassModulesInterface.resi:4:2 --> FirstClassModulesInterface.res:3:2
395-
addValueDeclaration +r FirstClassModulesInterface.resi:7:0 path:FirstClassModulesInterface
396398
addTypeReference FirstClassModulesInterface.res:3:2 --> FirstClassModulesInterface.resi:4:2
397-
addTypeReference FirstClassModulesInterface.resi:4:2 --> FirstClassModulesInterface.res:3:2
398-
addTypeReference FirstClassModulesInterface.res:2:2 --> FirstClassModulesInterface.resi:3:2
399-
addTypeReference FirstClassModulesInterface.resi:3:2 --> FirstClassModulesInterface.res:2:2
399+
addValueDeclaration +r FirstClassModulesInterface.resi:7:0 path:FirstClassModulesInterface
400400
Scanning Hooks.cmt Source:Hooks.res
401401
addValueDeclaration +make Hooks.res:4:4 path:+Hooks
402402
addValueDeclaration +default Hooks.res:25:4 path:+Hooks
@@ -994,9 +994,9 @@
994994
Scanning InnerModuleTypes.cmti Source:InnerModuleTypes.resi
995995
addVariantCaseDeclaration Foo InnerModuleTypes.resi:2:11 path:InnerModuleTypes.I.t
996996
extendTypeDependencies InnerModuleTypes.res:2:11 --> InnerModuleTypes.resi:2:11
997+
addTypeReference InnerModuleTypes.resi:2:11 --> InnerModuleTypes.res:2:11
997998
extendTypeDependencies InnerModuleTypes.resi:2:11 --> InnerModuleTypes.res:2:11
998999
addTypeReference InnerModuleTypes.res:2:11 --> InnerModuleTypes.resi:2:11
999-
addTypeReference InnerModuleTypes.resi:2:11 --> InnerModuleTypes.res:2:11
10001000
Scanning JSResource.cmt Source:JSResource.res
10011001
Scanning JsxV4.cmt Source:JsxV4.res
10021002
addValueDeclaration +make JsxV4.res:4:23 path:+JsxV4.C

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