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Address review comment
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4 files changed

+32
-102
lines changed

4 files changed

+32
-102
lines changed

‎javascript/ql/lib/semmle/javascript/SSA.qll‎

Lines changed: 8 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -488,6 +488,14 @@ class SsaDefinition extends TSsaDefinition {
488488
string filepath, int startline, int startcolumn, int endline, int endcolumn
489489
);
490490

491+
/** Gets the location of this element. */
492+
final Location getLocation() {
493+
exists(string filepath, int startline, int startcolumn, int endline, int endcolumn |
494+
this.hasLocationInfo(filepath, startline, startcolumn, endline, endcolumn) and
495+
result.hasLocationInfo(filepath, startline, startcolumn, endline, endcolumn)
496+
)
497+
}
498+
491499
/** Gets the function or toplevel to which this definition belongs. */
492500
StmtContainer getContainer() { result = this.getBasicBlock().getContainer() }
493501
}

‎javascript/ql/lib/semmle/javascript/dataflow/DataFlow.qll‎

Lines changed: 23 additions & 99 deletions
Original file line numberDiff line numberDiff line change
@@ -145,20 +145,15 @@ module DataFlow {
145145
* For more information, see
146146
* [Locations](https://codeql.github.com/docs/writing-codeql-queries/providing-locations-in-codeql-queries/).
147147
*/
148-
cached
149-
predicate hasLocationInfo(
148+
final predicate hasLocationInfo(
150149
string filepath, int startline, int startcolumn, int endline, int endcolumn
151150
) {
152-
none()
151+
this.getLocation().hasLocationInfo(filepath, startline, startcolumn, endline, endcolumn)
153152
}
154153

155154
/** Gets the location of this node. */
156-
Location getLocation() {
157-
exists(string filepath, int startline, int startcolumn, int endline, int endcolumn |
158-
this.hasLocationInfo(filepath, startline, startcolumn, endline, endcolumn) and
159-
result.hasLocationInfo(filepath, startline, startcolumn, endline, endcolumn)
160-
)
161-
}
155+
cached
156+
Location getLocation() { none() }
162157

163158
/** Gets the file this data flow node comes from. */
164159
File getFile() { none() } // overridden in subclasses
@@ -300,11 +295,9 @@ module DataFlow {
300295

301296
override BasicBlock getBasicBlock() { astNode = result.getANode() }
302297

303-
override predicate hasLocationInfo(
304-
string filepath, int startline, int startcolumn, int endline, int endcolumn
305-
) {
298+
override Location getLocation() {
306299
Stages::DataFlowStage::ref() and
307-
astNode.getLocation().hasLocationInfo(filepath, startline, startcolumn, endline, endcolumn)
300+
result = astNode.getLocation()
308301
}
309302

310303
override File getFile() { result = astNode.getFile() }
@@ -325,11 +318,7 @@ module DataFlow {
325318

326319
override BasicBlock getBasicBlock() { result = ssa.getBasicBlock() }
327320

328-
override predicate hasLocationInfo(
329-
string filepath, int startline, int startcolumn, int endline, int endcolumn
330-
) {
331-
ssa.hasLocationInfo(filepath, startline, startcolumn, endline, endcolumn)
332-
}
321+
override Location getLocation() { result = ssa.getLocation() }
333322

334323
override string toString() { result = ssa.getSourceVariable().getName() }
335324

@@ -348,13 +337,7 @@ module DataFlow {
348337

349338
override BasicBlock getBasicBlock() { result = prop.(ControlFlowNode).getBasicBlock() }
350339

351-
override predicate hasLocationInfo(
352-
string filepath, int startline, int startcolumn, int endline, int endcolumn
353-
) {
354-
prop.(Locatable)
355-
.getLocation()
356-
.hasLocationInfo(filepath, startline, startcolumn, endline, endcolumn)
357-
}
340+
override Location getLocation() { result = prop.(Locatable).getLocation() }
358341

359342
override string toString() { result = prop.(AstNode).toString() }
360343

@@ -375,11 +358,7 @@ module DataFlow {
375358

376359
override BasicBlock getBasicBlock() { result = rest.getBasicBlock() }
377360

378-
override predicate hasLocationInfo(
379-
string filepath, int startline, int startcolumn, int endline, int endcolumn
380-
) {
381-
rest.getLocation().hasLocationInfo(filepath, startline, startcolumn, endline, endcolumn)
382-
}
361+
override Location getLocation() { result = rest.getLocation() }
383362

384363
override string toString() { result = "..." + rest.toString() }
385364

@@ -400,11 +379,7 @@ module DataFlow {
400379

401380
override BasicBlock getBasicBlock() { result = elt.getBasicBlock() }
402381

403-
override predicate hasLocationInfo(
404-
string filepath, int startline, int startcolumn, int endline, int endcolumn
405-
) {
406-
elt.getLocation().hasLocationInfo(filepath, startline, startcolumn, endline, endcolumn)
407-
}
382+
override Location getLocation() { result = elt.getLocation() }
408383

409384
override string toString() { result = elt.toString() }
410385

@@ -429,11 +404,7 @@ module DataFlow {
429404

430405
override BasicBlock getBasicBlock() { result = elt.getBasicBlock() }
431406

432-
override predicate hasLocationInfo(
433-
string filepath, int startline, int startcolumn, int endline, int endcolumn
434-
) {
435-
elt.getLocation().hasLocationInfo(filepath, startline, startcolumn, endline, endcolumn)
436-
}
407+
override Location getLocation() { result = elt.getLocation() }
437408

438409
override string toString() { result = elt.toString() }
439410

@@ -453,11 +424,7 @@ module DataFlow {
453424

454425
override BasicBlock getBasicBlock() { result = call.getBasicBlock() }
455426

456-
override predicate hasLocationInfo(
457-
string filepath, int startline, int startcolumn, int endline, int endcolumn
458-
) {
459-
call.getLocation().hasLocationInfo(filepath, startline, startcolumn, endline, endcolumn)
460-
}
427+
override Location getLocation() { result = call.getLocation() }
461428

462429
override string toString() { result = "reflective call" }
463430

@@ -474,11 +441,7 @@ module DataFlow {
474441

475442
override BasicBlock getBasicBlock() { result = imprt.getBasicBlock() }
476443

477-
override predicate hasLocationInfo(
478-
string filepath, int startline, int startcolumn, int endline, int endcolumn
479-
) {
480-
imprt.getLocation().hasLocationInfo(filepath, startline, startcolumn, endline, endcolumn)
481-
}
444+
override Location getLocation() { result = imprt.getLocation() }
482445

483446
override string toString() { result = imprt.toString() }
484447

@@ -968,11 +931,7 @@ module DataFlow {
968931

969932
override string toString() { result = attr.toString() }
970933

971-
override predicate hasLocationInfo(
972-
string filepath, int startline, int startcolumn, int endline, int endcolumn
973-
) {
974-
attr.getLocation().hasLocationInfo(filepath, startline, startcolumn, endline, endcolumn)
975-
}
934+
override Location getLocation() { result = attr.getLocation() }
976935

977936
/** Gets the attribute corresponding to this data flow node. */
978937
HTML::Attribute getAttribute() { result = attr }
@@ -990,11 +949,7 @@ module DataFlow {
990949

991950
override string toString() { result = attr.toString() }
992951

993-
override predicate hasLocationInfo(
994-
string filepath, int startline, int startcolumn, int endline, int endcolumn
995-
) {
996-
attr.getLocation().hasLocationInfo(filepath, startline, startcolumn, endline, endcolumn)
997-
}
952+
override Location getLocation() { result = attr.getLocation() }
998953

999954
/** Gets the attribute corresponding to this data flow node. */
1000955
XmlAttribute getAttribute() { result = attr }
@@ -1012,11 +967,7 @@ module DataFlow {
1012967

1013968
override string toString() { result = "exceptional return of " + function.describe() }
1014969

1015-
override predicate hasLocationInfo(
1016-
string filepath, int startline, int startcolumn, int endline, int endcolumn
1017-
) {
1018-
function.getLocation().hasLocationInfo(filepath, startline, startcolumn, endline, endcolumn)
1019-
}
970+
override Location getLocation() { result = function.getLocation() }
1020971

1021972
override BasicBlock getBasicBlock() { result = function.getExit().getBasicBlock() }
1022973

@@ -1038,11 +989,7 @@ module DataFlow {
1038989

1039990
override string toString() { result = "return of " + function.describe() }
1040991

1041-
override predicate hasLocationInfo(
1042-
string filepath, int startline, int startcolumn, int endline, int endcolumn
1043-
) {
1044-
function.getLocation().hasLocationInfo(filepath, startline, startcolumn, endline, endcolumn)
1045-
}
992+
override Location getLocation() { result = function.getLocation() }
1046993

1047994
override BasicBlock getBasicBlock() { result = function.getExit().getBasicBlock() }
1048995

@@ -1064,11 +1011,7 @@ module DataFlow {
10641011

10651012
override string toString() { result = "'arguments' object of " + function.describe() }
10661013

1067-
override predicate hasLocationInfo(
1068-
string filepath, int startline, int startcolumn, int endline, int endcolumn
1069-
) {
1070-
function.getLocation().hasLocationInfo(filepath, startline, startcolumn, endline, endcolumn)
1071-
}
1014+
override Location getLocation() { result = function.getLocation() }
10721015

10731016
override BasicBlock getBasicBlock() { result = function.getEntry().getBasicBlock() }
10741017

@@ -1090,11 +1033,7 @@ module DataFlow {
10901033

10911034
override string toString() { result = "exceptional return of " + invoke.toString() }
10921035

1093-
override predicate hasLocationInfo(
1094-
string filepath, int startline, int startcolumn, int endline, int endcolumn
1095-
) {
1096-
invoke.getLocation().hasLocationInfo(filepath, startline, startcolumn, endline, endcolumn)
1097-
}
1036+
override Location getLocation() { result = invoke.getLocation() }
10981037

10991038
override BasicBlock getBasicBlock() { result = invoke.getBasicBlock() }
11001039

@@ -1366,15 +1305,10 @@ module DataFlow {
13661305
exists(StmtContainer container | this = TThisNode(container) | result = container.getEntry())
13671306
}
13681307

1369-
override predicate hasLocationInfo(
1370-
string filepath, int startline, int startcolumn, int endline, int endcolumn
1371-
) {
1308+
override Location getLocation() {
13721309
// Use the function entry as the location
13731310
exists(StmtContainer container | this = TThisNode(container) |
1374-
container
1375-
.getEntry()
1376-
.getLocation()
1377-
.hasLocationInfo(filepath, startline, startcolumn, endline, endcolumn)
1311+
result = container.getEntry().getLocation()
13781312
)
13791313
}
13801314

@@ -1393,11 +1327,7 @@ module DataFlow {
13931327

13941328
override BasicBlock getBasicBlock() { result = variable.getDeclaringContainer().getStartBB() }
13951329

1396-
override predicate hasLocationInfo(
1397-
string filepath, int startline, int startcolumn, int endline, int endcolumn
1398-
) {
1399-
variable.getLocation().hasLocationInfo(filepath, startline, startcolumn, endline, endcolumn)
1400-
}
1330+
override Location getLocation() { result = variable.getLocation() }
14011331

14021332
override string toString() { result = variable.getName() }
14031333
}
@@ -1409,13 +1339,7 @@ module DataFlow {
14091339

14101340
override BasicBlock getBasicBlock() { none() }
14111341

1412-
override predicate hasLocationInfo(
1413-
string filepath, int startline, int startcolumn, int endline, int endcolumn
1414-
) {
1415-
this.getTag()
1416-
.getLocation()
1417-
.hasLocationInfo(filepath, startline, startcolumn, endline, endcolumn)
1418-
}
1342+
override Location getLocation() { result = this.getTag().getLocation() }
14191343

14201344
override string toString() { result = this.getTag().toString() }
14211345
}

‎javascript/ql/lib/semmle/javascript/internal/CachedStages.qll‎

Lines changed: 0 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -136,8 +136,6 @@ module Stages {
136136
or
137137
exists(DataFlow::ssaDefinitionNode(_))
138138
or
139-
any(DataFlow::Node node).hasLocationInfo(_, _, _, _, _)
140-
or
141139
exists(any(DataFlow::Node node).getLocation())
142140
or
143141
exists(any(DataFlow::Node node).toString())

‎javascript/ql/lib/semmle/javascript/internal/Locations.qll‎

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -9,7 +9,7 @@ import javascript
99
newtype TLocation =
1010
TDbLocation(@location loc) or
1111
TSynthLocation(string filepath, int startline, int startcolumn, int endline, int endcolumn) {
12-
any(DataFlow::Node n).hasLocationInfo(filepath, startline, startcolumn, endline, endcolumn) and
12+
any(SsaDefinition def).hasLocationInfo(filepath, startline, startcolumn, endline, endcolumn) and
1313
// avoid overlap with existing DB locations
1414
not exists(File f |
1515
locations_default(_, f, startline, startcolumn, endline, endcolumn) and

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