cpg-core/de.fraunhofer.aisec.cpg.helpers/SubgraphWalker/ScopedWalker

ScopedWalker

class ScopedWalker

This class traverses the graph in a similar way as the IterativeGraphWalker, but with the added feature, that a ScopeManager is populated with the scope information of the current node. This way, we can call functions on the supplied scopeManager and emulate that we are currently in the scope of the "consumed" node in the callback. This can be useful for resolving declarations or other scope-related tasks.

Constructors

constructor(lang: LanguageFrontend<*, *>)

constructor(scopeManager: ScopeManager, strategy: (Node) -> Iterator<Node> = Strategy::AST_FORWARD)

Properties

lateinit var strategy: (Node) -> Iterator<Node>

Functions

fun clearCallbacks()

fun iterate(root: Node)

Wraps IterativeGraphWalker to handle declaration scopes.

registerHandler

fun registerHandler(handler: TriConsumer<RecordDeclaration?, Node?, Node?>)

fun registerHandler(handler: BiConsumer<Node?, RecordDeclaration?>)

fun registerHandler(handler: Consumer<Node?>)

registerReplacement

fun registerReplacement(from: Node, to: Node)

fun SubgraphWalker.ScopedWalker.replace(parent: Node?, old: Expression, new: Expression): Boolean

Tries to replace the old expression with a new one, given the parent.

replaceCallWithCast

fun SubgraphWalker.ScopedWalker.replaceCallWithCast(type: Type, parent: Node, call: CallExpression, pointer: Boolean)

replaceCallWithConstruct

fun SubgraphWalker.ScopedWalker.replaceCallWithConstruct(type: ObjectType, parent: Node, call: CallExpression)