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[WIP] C# 14: Support `extension` blocks.#21220

Draft

michaelnebel wants to merge 16 commits intogithub:maingithub/codeql:mainfrom

michaelnebel:csharp14/extensionmichaelnebel/codeql:csharp14/extensionCopy head branch name to clipboard

Conversation Commits16 (16)Checks Files changed

Draft

[WIP] C# 14: Support `extension` blocks.#21220
michaelnebel wants to merge 16 commits intogithub:mainfrom
michaelnebel:csharp14/extension

Commits

Commits on Jan 26, 2026

C#: Extractor support for extension blocks.
michaelnebel
committed
C#: Implicit extension parameters should be fresh entities.
michaelnebel
committed
C#: Add extension types to the db scheme.
michaelnebel
committed
C#: Static extension methods in extension types should also have their call target replaced.
michaelnebel
committed

Commits on Jan 27, 2026

C#: The call to an extension operator should be considered an operator invocation.
michaelnebel
committed
C#: Minor improvements.
michaelnebel
committed

Commits on Jan 28, 2026

C#: Introduce a new expr kind for when accessors are invoked directly.
michaelnebel
committed
C#: Add various extension related classes to the QL library.
michaelnebel
committed
C#: Add extensions tests.
michaelnebel
committed

Commits on Jan 29, 2026

C#: Extract the receiver type for extension types.
michaelnebel
committed
C#: Add a extension receiver type table to the DB scheme.
michaelnebel
committed
C#: Use the relation in the ExtensionType relation in the QL library.
michaelnebel
committed
C#: Add some QL tests for extension types.
michaelnebel
committed
C#: Remove some TODO reminder comments.
michaelnebel
committed
C#: Synthesize the implicit extension parameters for generics.
michaelnebel
committed
C#: Add generic test.
michaelnebel
committed

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