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codeql/python/ql/src/analysis/CallGraphEfficiency.ql
Taus Brock-Nannestad f07a7bf8cf Python: Autoformat everything using qlformat.
Will need subsequent PRs fixing up test failures (due to deprecated
methods moving around), but other than that everything should be
straight-forward.
2020-07-07 15:43:52 +02:00

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/**
* Compute the total call-graph facts, the total size of the call-graph relation and
* the ratio of the two in relation to the depth of context.
*/
import python
import semmle.python.pointsto.PointsTo
import semmle.python.pointsto.PointsToContext
from int total_facts, int total_size, int depth, float efficiency
where
total_facts =
strictcount(ControlFlowNode call, CallableValue func |
exists(PointsToContext ctx |
call = func.getACall(ctx) and
depth = ctx.getDepth()
)
) and
total_size =
strictcount(ControlFlowNode call, CallableValue func, PointsToContext ctx |
call = func.getACall(ctx) and
depth = ctx.getDepth()
) and
efficiency = 100.0 * total_facts / total_size
select depth, total_facts, total_size, efficiency