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6c182564e7
- Cache predicates in the same stage using a cached module. - Introduce `DefUse::defUseVariableUpdate()` and use in `CallableReturns.qll`. The updated file `csharp/ql/test/library-tests/cil/dataflow/Nullness.expected` demonstrates why this is needed. - Utilize CIL analysis in `Guards::nonNullValue()`. - Analyze SSA definitions in `AlwaysNullExpr`, similar to `NonNullExpr`.
17 lines
454 B
Plaintext
17 lines
454 B
Plaintext
import csharp
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import semmle.code.csharp.dataflow.DataFlow::DataFlow
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class FlowConfig extends Configuration {
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FlowConfig() { this = "FlowConfig" }
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override predicate isSource(Node source) { source.asExpr() instanceof Literal }
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override predicate isSink(Node sink) {
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exists(LocalVariable decl | sink.asExpr() = decl.getInitializer())
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}
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}
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from FlowConfig config, Node source, Node sink
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where config.hasFlow(source, sink)
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select source, sink
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