microsoft / microsoft/CsWinRT

Handle scenarios when the transitive closure of types is known.

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enhancement performance
Dominant language
C#
Stars
665
Forks
134
Avg merge
1d 3h
Merged PRs (30d)
32

Description

There are scenarios in WinRT where the transitive closure of all types is known. This would imply there are opportunities to optimize the RCW code generation logic and avoid querying the runtime for these types - see https://github.com/microsoft/CsWinRT/blob/4e73245f7465e3adf2ec4cbcfe0e54e9cc988786/cswinrt/strings/WinRT_Wrappers.cs#L121

Reasons for considering this are: AOT and linkability (reduce memory footprint).

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Research direction

Start with cswinrt/strings/WinRT_Wrappers.cs around line 121 and trace the RCW code generation logic that queries the runtime for type information. Investigate how known transitive closures relate to AOT and linker behavior. Done means the applicable scenarios avoid unnecessary runtime queries while preserving correct RCW generation and reducing the footprint.

Written by the indexing model from the issue text.

Assessment

Tech stack
csharp
Domain
desktop, tooling
Issue type
Feature
Difficulty
5/5
Estimated time
Over a week
Activity status
Stale
Clarity
Mostly clear
Newbie friendliness
30/100

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