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Merge pull request #4668 from aschackmull/dataflow/refactor-pruning

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Dataflow: Refactor pruning stages.
This commit is contained in:
Anders Schack-Mulligen
2020-11-30 09:37:04 +01:00
committed by GitHub
parent 74af41c76d fec9758252
commit 931322e4c5
32 changed files with 41216 additions and 30855 deletions
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java/ql/src/semmle/code/java/dataflow/internal/DataFlowImpl.qll
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java/ql/src/semmle/code/java/dataflow/internal/DataFlowImplCommon.qll
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@@ -802,14 +802,9 @@ abstract class AccessPathFront extends TAccessPathFront {
abstract boolean toBoolNonEmpty();
predicate headUsesContent(TypedContent tc) { this = TFrontHead(tc) }
TypedContent getHead() { this = TFrontHead(result) }
predicate isClearedAt(Node n) {
exists(TypedContent tc |
this.headUsesContent(tc) and
clearsContent(n, tc.getContent())
)
}
predicate isClearedAt(Node n) { clearsContent(n, getHead().getContent()) }
}
class AccessPathFrontNil extends AccessPathFront, TFrontNil {