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30 lines
927 B
Plaintext
30 lines
927 B
Plaintext
/** Compute the marginal increase call-graph facts, the total size of the call-graph relation and
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* the ratio of the two in relation to the depth of context.
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*/
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import python
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import semmle.python.pointsto.PointsTo
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import semmle.python.pointsto.PointsToContext
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from int total_facts, int total_size, int depth, float efficiency
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where
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total_facts = strictcount(ControlFlowNode call, CallableValue func |
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exists(PointsToContext ctx |
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call = func.getACall(ctx) and
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depth = ctx.getDepth()
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and not
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exists(PointsToContext shallower |
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call = func.getACall(shallower) and
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shallower.getDepth() < depth
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)
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)
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)
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and
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total_size = strictcount(ControlFlowNode call, CallableValue func, PointsToContext ctx |
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call = func.getACall(ctx) and
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depth = ctx.getDepth()
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)
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and
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efficiency = 100.0 * total_facts / total_size
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select depth, total_facts, total_size, efficiency
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