Expose System.Linq.Expressions.CanCompileToIL feature switch

[MichalStrehovsky]

We should add an MSBuild property to allow turning this off and get rid of the IL emit backend.

We could optionally also expose a more general purpose <OptimizationPreference>Size</OptimizationPreference> property that would enable this one (and maybe others if we find more opportunities).

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Issue Details

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We should add an MSBuild property to allow turning this off and get rid of the IL emit backend.

We could optionally also expose a more general purpose <OptimizationPreference>Size</OptimizationPreference> property that would enable this one (and maybe others if we find more opportunities).

Author:	MichalStrehovsky
Assignees:	-
Labels:	area-System.Linq.Expressions, linkable-framework
Milestone:	-

[teo-tsirpanis]

We could optionally also expose a more general purpose <OptimizationPreference>Size</OptimizationPreference> property that would enable this one (and maybe others if we find more opportunities).

Yes please, I had mentioned it some time ago. Another use case for it would be LINQ, which uses a smaller but less optimized implementation on WASM.

[MichalStrehovsky]

Another use case for it would be LINQ, which uses a smaller but less optimized implementation on WASM.

If you have a proposal for how that would be possible, I would be very interested in a feature switch for that (should be discussed in a separate issue). Currently it's only possible to build that flavor at C# compile time and it didn't look trivial to convert to feature switch (but I could be proved wrong on that).