CodeQL library for Python

codeql/python-all 3.0.1-dev (changelog, source)

Module TypeTrackerSpecific

Provides Python-specific definitions for use in the type tracker library.

Import path

import semmle.python.dataflow.new.internal.TypeTrackerSpecific

Predicates

basicWithContentStep	Holds if type-tracking should step from `nodeFrom` to `nodeTo` if inside a content matched by `filter`.
basicWithoutContentStep	Holds if type-tracking should step from `nodeFrom` to `nodeTo` but block flow of contents matched by `filter` through here.
compatibleContents
levelStepCall	Holds if there is a level step from `nodeFrom` to `nodeTo`, which may depend on the call graph.
noContent	Gets the content string representing no value.

Classes

Boolean	A utility class that is equivalent to `boolean` but does not require type joining.
ContentFilter	A label to use for `WithContent` and `WithoutContent` steps, restricting which `ContentSet` may pass through. Not currently used in Python.
OptionalTypeTrackerContent	A content name for use by type trackers, or the empty string.
TypeTrackerContent	A content name for use by type trackers.

Aliases

Node	An element, viewed as a node in a data flow graph. Either an SSA variable (`EssaNode`) or a control flow node (`CfgNode`).
TypeTrackingNode	A node that can be used for type tracking or type back-tracking.
basicLoadStep	Holds if `nodeTo` is the result of accessing the `content` content of `nodeFrom`.
basicLoadStoreStep	Holds if the `loadContent` of `nodeFrom` is stored in the `storeContent` of `nodeTo`.
basicStoreStep	Holds if `nodeFrom` is being written to the `content` content of the object in `nodeTo`.
callStep	Holds if `nodeFrom` steps to `nodeTo` by being passed as a parameter in a call.
jumpStep	Holds if data can flow from `node1` to `node2` in a way that discards call contexts.
levelStepNoCall	Holds if there is a level step from `nodeFrom` to `nodeTo`, which does not depend on the call graph.
returnStep	Holds if `nodeFrom` steps to `nodeTo` by being returned from a call.
simpleLocalFlowStep	Holds if there is a simple local flow step from `nodeFrom` to `nodeTo`