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Dataflow: Add language specific predicates.

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This commit is contained in:
Anders Schack-Mulligen
2021-10-29 11:11:35 +02:00
parent 00df6798b1
commit 5951ae79b9
5 changed files with 30 additions and 0 deletions
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6
cpp/ql/lib/semmle/code/cpp/dataflow/internal/DataFlowPrivate.qll
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@@ -3,6 +3,12 @@ private import DataFlowUtil
private import DataFlowDispatch
private import FlowVar
/** Gets the callable in which this node occurs. */
DataFlowCallable nodeGetEnclosingCallable(Node n) { result = n.getEnclosingCallable() }
/** Holds if `p` is a `ParameterNode` of `c` with position `pos`. */
predicate isParameterNode(ParameterNode p, DataFlowCallable c, int pos) { p.isParameterOf(c, pos) }
/** Gets the instance argument of a non-static call. */
private Node getInstanceArgument(Call call) {
result.asExpr() = call.getQualifier()

6
cpp/ql/lib/semmle/code/cpp/ir/dataflow/internal/DataFlowPrivate.qll
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@@ -3,6 +3,12 @@ private import DataFlowUtil
private import semmle.code.cpp.ir.IR
private import DataFlowDispatch
/** Gets the callable in which this node occurs. */
DataFlowCallable nodeGetEnclosingCallable(Node n) { result = n.getEnclosingCallable() }
/** Holds if `p` is a `ParameterNode` of `c` with position `pos`. */
predicate isParameterNode(ParameterNode p, DataFlowCallable c, int pos) { p.isParameterOf(c, pos) }
/**
* A data flow node that occurs as the argument of a call and is passed as-is
* to the callable. Instance arguments (`this` pointer) and read side effects