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infer_clone/infer/tests/codetoanalyze/java/topl/skip/SkipAfterRemove.topl

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[topl] Support side conditions for transitions. Summary: In addition to state1 -> state2: pattern one can now also write state1 -> state2: pattern if condition where "condition" is some conjunction of comparisons (==,<,>) that involve variables bound by "pattern", registers of the automaton, and constants. Reviewed By: ngorogiannis Differential Revision: D19035496 fbshipit-source-id: 6f6e6a9be
5 years ago
property SkipAfterRemove
prefix "ArrayList"
[topl] Generate simpler monitor for deterministic states. Summary: This is an optimization. We ask the user to tell us which states are nondeterministic, and we generate code that handle nondeterminism only for those states. It is common for only one state per TOPL property to be nondeterministic. This speeds up the biabduction-analysis of the monitor by a factor of ~10. But, using the monitor is only a little faster. Facebook Reviewed By: jvillard Differential Revision: D19160286 fbshipit-source-id: 4dd39769a
5 years ago
nondet (start)
[topl] Support side conditions for transitions. Summary: In addition to state1 -> state2: pattern one can now also write state1 -> state2: pattern if condition where "condition" is some conjunction of comparisons (==,<,>) that involve variables bound by "pattern", registers of the automaton, and constants. Reviewed By: ngorogiannis Differential Revision: D19035496 fbshipit-source-id: 6f6e6a9be
5 years ago
start -> start: *
[topl] Switched to low-level syntax. Summary: This syntax - is less confusing (according to several people who are not me); objectively, there's less magic under the hood - gives fine control over register number (because condition/action are separated) - lets one compare values of different arguments of the same call (e.g., one could have a transition that is taken only if two arguments of a method call are equal) Reviewed By: ngorogiannis Differential Revision: D20005403 fbshipit-source-id: fad8f3b3d
5 years ago
start -> removed: remove(Collection, Index, IgnoreRet) => c := Collection; i := Index
removed -> ok: get(Collection, Index, IgnoreRet) when i == Index && c == Collection
removed -> error: get(Collection, Index, IgnoreRet) when i != Index && c == Collection => j := Index
// TODO(rgrigore): Dropping the assignment above makes it slow. Also, swapping the conjuncts!
// This is weird prover-stuff to be investigated.