Skip to content

C++: Annotate IR with partial flow info #4501

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
MathiasVP merged 1 commit into from
Oct 18, 2020
Merged

C++: Annotate IR with partial flow info #4501

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
17 changes: 17 additions & 0 deletions cpp/ql/src/semmle/code/cpp/ir/dataflow/internal/PrintIRLocalFlow.qll
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -130,6 +130,23 @@ private string getNodeProperty(DataFlow::Node node, string key) {
|
kind, ", "
)
or
// Is there partial flow from a source to this node?
// This property will only be emitted if partial flow is enabled by overriding
// `DataFlow::Configration::explorationLimit()`.
key = "pflow" and
result =
strictconcat(DataFlow::PartialPathNode sourceNode, DataFlow::PartialPathNode destNode, int dist,
int order1, int order2 |
any(DataFlow::Configuration cfg).hasPartialFlow(sourceNode, destNode, dist) and
destNode.getNode() = node and
// Only print flow from a source in the same function.
sourceNode.getNode().getEnclosingCallable() = node.getEnclosingCallable()
|
nodeId(sourceNode.getNode(), order1, order2) + "+" + dist.toString(), ", "
order by
order1, order2, dist desc
)
}

/**
Expand Down