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DataFlowUtil

Module DataFlowUtil

Provides C++-specific definitions for use in the data flow library.


                                import semmle.code.cpp.dataflow.internal.DataFlowUtil

definitionByReferenceNodeFromArgument	Gets the `Node` corresponding to a definition by reference of the variable that is passed as `argument` of a call.
exprNode	Gets the `Node` corresponding to the value of evaluating `e`. For data flowing out of an expression, like when an argument is passed by reference, use `definitionByReferenceNodeFromArgument` instead.
getAnAccessToAssignedVariable
localExprFlow	Holds if data can flow from `e1` to `e2` in zero or more local (intra-procedural) steps.
localFlow	Holds if data flows from `source` to `sink` in zero or more local (intra-procedural) steps.
localFlowStep	Holds if data flows from `nodeFrom` to `nodeTo` in exactly one local (intra-procedural) step.
parameterNode	Gets the `Node` corresponding to the value of `p` at function entry.
simpleLocalFlowStep	INTERNAL: do not use.
uninitializedNode	Gets the `Node` corresponding to the value of an uninitialized local variable `v`.

BarrierGuard	DEPRECATED: Use `BarrierGuard` module instead.
Content	A description of the way data may be stored inside an object. Examples include instance fields, the contents of a collection object, or the contents of an array.
ContentSet	An entity that represents a set of `Content`s.
DefinitionByReferenceNode	A node that represents the value of a variable after a function call that may have changed the variable because it’s passed by reference.
DefinitionByReferenceOrIteratorNode	INTERNAL: do not use.
ExplicitParameterNode	The value of a parameter at function entry, viewed as a node in a data flow graph.
ExprNode	An expression, viewed as a node in a data flow graph.
FieldContent	A reference through an instance field.
ImplicitParameterNode
Node	A node in a data flow graph.
ParameterNode
PostUpdateNode	A node associated with an object after an operation that might have changed its state.
PreConstructorInitThis	INTERNAL: do not use.
PreObjectInitializerNode	INTERNAL: do not use.
RefParameterFinalValueNode	INTERNAL: do not use. The final value of a non-const ref parameter.
UninitializedNode	The value of an uninitialized local variable, viewed as a node in a data flow graph.

Provides a set of barrier nodes for a guard that validates an expression.

Holds if the guard g validates the expression e upon evaluating to branch.