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codeql/swift/ql/lib/change-notes/released/0.3.0.md
github-actions[bot] 9fe993bec3 Release preparation for version 2.15.0
2023-10-04 14:15:27 +00:00

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0.3.0

Deprecated APIs

  • The ArrayContent type in the data flow library has been deprecated and made an alias for the CollectionContent type, to better reflect the hierarchy of the Swift standard library. Uses of ArrayElement in model files will be interpreted as referring to CollectionContent.

Major Analysis Improvements

  • The predicates getABaseType, getABaseTypeDecl, getADerivedType and getADerivedTypeDecl on Type and TypeDecl now behave more usefully and consistently. They now explore through type aliases used in base class declarations, and include protocols added in extensions.

To examine base class declarations at a low level without these enhancements, use TypeDecl.getInheritedType.

Type.getABaseType (only) previously resolved a type alias it was called directly on. This behaviour no longer exists. To find any base type of a type that could be an alias, the construct Type.getUnderlyingType().getABaseType*() is recommended.

Minor Analysis Improvements

  • Modelled varargs function in NSString more accurately.
  • Modelled CustomStringConvertible.description and CustomDebugStringConvertible.debugDescription, replacing ad-hoc models of these properties on derived classes.
  • The regular expressions library now accepts a wider range of mode flags in a regular expression mode flag group (such as (?u)). The (?w) flag has been renamed from "UNICODE" to "UNICODEBOUNDARY", and the (?u) flag is called "UNICODE" in the libraries.
  • Renamed TypeDecl.getBaseType/1 to getInheritedType.
  • Flow through writes via keypaths is now supported by the data flow library.
  • Added flow through variadic arguments, and the getVaList function.
  • Added flow steps through Dictionary keys and values.
  • Added taint models for Numeric conversions.

Bug Fixes

  • The regular expressions library no longer incorrectly matches mode flag characters against the input.