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Guards: Add support for assertions that exit rather than throw.

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This commit is contained in:
Anders Schack-Mulligen
2025-10-27 15:42:41 +01:00
parent 72f1fe5d58
commit 500fdb8723
1 changed files with 10 additions and 3 deletions
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13
shared/controlflow/codeql/controlflow/Guards.qll
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@@ -297,7 +297,7 @@ module Make<
*/
predicate isIntRange(int bound, boolean upper) { this = TIntRange(bound, upper) }
/** Holds if this value represents throwing an exception. */
/** Holds if this value represents throwing an exception (or exiting). */
predicate isThrowsException() { this = TException(true) }
/** Gets a textual representation of this value. */
@@ -368,12 +368,19 @@ module Make<
e instanceof NonNullExpr and v.isNonNullValue()
}
/** Holds if `t` is an exception-like successor type. */
private predicate exceptionLike(SuccessorType t) {
t instanceof ExceptionSuccessor or
t instanceof ExitSuccessor
}
private predicate exceptionBranchPoint(BasicBlock bb1, BasicBlock normalSucc, BasicBlock excSucc) {
exists(SuccessorType norm, ExceptionSuccessor exc |
exists(SuccessorType norm, SuccessorType exc |
bb1.getASuccessor(norm) = normalSucc and
bb1.getASuccessor(exc) = excSucc and
normalSucc != excSucc and
not norm instanceof ExceptionSuccessor
exceptionLike(exc) and
not exceptionLike(norm)
)
}