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F# RFC FS-1015 - Support for "fixed" #1270

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merged 18 commits into from Jun 27, 2016
Merged

F# RFC FS-1015 - Support for "fixed" #1270

merged 18 commits into from Jun 27, 2016

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dsyme
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@dsyme dsyme commented Jun 20, 2016 •
edited

This is the PR for RFC FS-1015 - Support for 'fixed'

  • Complete implementation
  • Add tests
  • Fix baselines

Some tests are present but more are needed.

OmarTawfik
OmarTawfik reviewed Jun 21, 2016
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build.cmd
if /i '%ARG%' == 'ci_part3' (
set BUILD_PROTO=1
set SKIP_EXPENSIVE_TESTS=1
set BUILD_CORECLR=1
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Why are we building CORECLR without testing it? shouldn't it be already covered in ci_part2?

@dsyme dsyme changed the title [WIP] F# RFC FS-1015 - Support for "fixed" F# RFC FS-1015 - Support for "fixed" Jun 21, 2016
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dsyme commented Jun 21, 2016

This is now ready for review and commit

vladima
vladima reviewed Jun 21, 2016
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src/fsharp/lexhelp.fs
@@ -284,7 +285,7 @@ module Keywords =
[ "atomic"; "break";
"checked"; "component"; "constraint"; "constructor"; "continue";
"eager";
"fixed"; "fori"; "functor";
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yay! :)

@dsyme
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dsyme commented Jun 22, 2016

OK, this is now green - please review!

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ghost commented Jun 22, 2016

It looks like, for str a string, that both

use pStr = fixed str
use (pStr: nativeptr<char>) = fixed str

compile to the native int type in IL, whereas the C# fixed (char* pStr = str) compiles to the char* type in IL.

Not being an expert in how the CLR works, is this a cause for concern?

mexx
mexx reviewed Jun 23, 2016
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src/absil/ilwrite.fs
locals |> ILList.iter (fun l ->
if l.IsPinned then
bb.EmitByte et_PINNED
EmitType cenv env bb l.Type)
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Can we please remove the duplication for this logic?
How about a new function EmitTypeOfLocal?

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thanks, will do

@dsyme
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dsyme commented Jun 23, 2016

@codymack As far as I understand things that's not a cause for concern. F# has always used nativeint for pointers, at least within method body code - but operationally there is no difference between the two.

@KevinRansom
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@dotnet-bot test this please

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KevinRansom commented Jun 24, 2016 •
edited

@dsyme can you fix the merge issues

@KevinRansom KevinRansom merged commit 858eddf into dotnet:master Jun 27, 2016
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6 participants
@dsyme @KevinRansom @mexx @vladima @OmarTawfik @msftclas