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Guards: Generalise ValidationWrapper to support GuardValue-based BarrierGuards.

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This commit is contained in:
Anders Schack-Mulligen
2025-12-09 16:17:46 +01:00
parent 4a1abc7beb
commit ebb989962c
3 changed files with 11 additions and 9 deletions
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10
shared/controlflow/codeql/controlflow/Guards.qll
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@@ -1280,21 +1280,21 @@ module Make<
}
}
signature predicate guardChecksSig(Guard g, Expr e, boolean branch);
signature predicate guardChecksSig(Guard g, Expr e, GuardValue gv);
bindingset[this]
signature class StateSig;
private module WithState<StateSig State> {
signature predicate guardChecksSig(Guard g, Expr e, boolean branch, State state);
signature predicate guardChecksSig(Guard g, Expr e, GuardValue gv, State state);
}
/**
* Extends a `BarrierGuard` input predicate with wrapped invocations.
*/
module ValidationWrapper<guardChecksSig/3 guardChecks0> {
private predicate guardChecksWithState(Guard g, Expr e, boolean branch, Unit state) {
guardChecks0(g, e, branch) and exists(state)
private predicate guardChecksWithState(Guard g, Expr e, GuardValue gv, Unit state) {
guardChecks0(g, e, gv) and exists(state)
}
private module StatefulWrapper = ValidationWrapperWithState<Unit, guardChecksWithState/4>;
@@ -1366,7 +1366,7 @@ module Make<
* Holds if the guard `g` validates the expression `e` upon evaluating to `val`.
*/
private predicate guardChecks(Guard g, Expr e, GuardValue val, State state) {
guardChecks0(g, e, val.asBooleanValue(), state)
guardChecks0(g, e, val, state)
or
exists(NonOverridableMethodCall call, ParameterPosition ppos, ArgumentPosition apos |
g = call and