hohn/codeql
1
0
Fork 0
mirror of https://github.com/github/codeql.git synced 2025-12-16 16:53:25 +01:00
Code Issues Packages Projects Releases Wiki Activity

Address review comments

Browse Source
This commit is contained in:
Tom Hvitved
2024-09-03 10:13:09 +02:00
parent 1057bb443f
commit 07fcd81e7e
1 changed files with 6 additions and 10 deletions
Download Patch File Download Diff File Expand all files Collapse all files

16
shared/dataflow/codeql/dataflow/internal/DataFlowImpl.qll
View File

@@ -1722,11 +1722,6 @@ module MakeImpl<LocationSig Location, InputSig<Location> Lang> {
if ap instanceof ApNil then emptyAp = true else emptyAp = false
}
bindingset[call, c, p, apa]
private signature predicate callRestrictionSig(
DataFlowCall call, DataFlowCallable c, ParamNodeEx p, ApApprox apa, boolean emptyAp
);
private signature predicate flowThroughSig();
/**
@@ -1737,8 +1732,8 @@ module MakeImpl<LocationSig Location, InputSig<Location> Lang> {
* need to record the argument that flows into the parameter.
*
* For flow through, we do need to record the argument, however, we can restrict
* this to arguments that may actually flow through, using `flowThroughSig`,
* which reduces the argument-to-parameter fan-in significantly.
* this to arguments that may actually flow through, which reduces the
* argument-to-parameter fan-in significantly.
*/
private module FwdFlowIn<flowThroughSig/0 flowThrough> {
pragma[nomagic]
@@ -1747,14 +1742,14 @@ module MakeImpl<LocationSig Location, InputSig<Location> Lang> {
ApApprox apa
) {
exists(boolean allowsFieldFlow |
PrevStage::callEdgeArgParam(call, c, arg, p, allowsFieldFlow, apa) and
if emptyAp = true then apa instanceof PrevStage::ApNil else any()
PrevStage::callEdgeArgParam(call, c, arg, p, allowsFieldFlow, apa)
|
if
PrevStage::callMayFlowThroughRev(call) and
PrevStage::parameterMayFlowThrough(p, apa)
then
emptyAp = true and
apa instanceof PrevStage::ApNil and
flowThrough()
or
emptyAp = false and
@@ -1763,7 +1758,8 @@ module MakeImpl<LocationSig Location, InputSig<Location> Lang> {
else (
not flowThrough() and
(
emptyAp = true
emptyAp = true and
apa instanceof PrevStage::ApNil
or
emptyAp = false and
allowsFieldFlow = true