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[REPL] improve quality of precompile script #55210

Merged
merged 2 commits into from
Jul 25, 2024
Merged

[REPL] improve quality of precompile script #55210

merged 2 commits into from
Jul 25, 2024

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vtjnash
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@vtjnash vtjnash commented Jul 22, 2024

This rewrites the REPL precompile script to no longer rely upon ugly hacks for a cross-process copy and instead supports doing the precompile wholly within in the current process.

@vtjnash vtjnash added REPL Julia's REPL (Read Eval Print Loop) compiler:precompilation Precompilation of modules labels Jul 22, 2024
@vtjnash vtjnash requested a review from vchuravy July 22, 2024 18:55
@IanButterworth
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On Apple Silicon CI this makes REPL precompilation go from 58s to 25s.
That's a surprisingly large improvement!

@vtjnash
use sentinal for REPL_MODULE_REF
91ee1f4 
Working with #undef is unnecessarily trickier and more limited than
using a token, which allows more flexibility with updates.
@vtjnash vtjnash force-pushed the jn/REPL-precompile-corrected branch from 69cb6a8 to f09e95e Compare July 23, 2024 16:29
@vtjnash
[REPL] improve quality of precompile script
5871df1 
Launching a subprocess is buggy and error-prone, as partially evidenced
by the variety of bugs that needed to be fixed.
@vtjnash vtjnash force-pushed the jn/REPL-precompile-corrected branch from f09e95e to 5871df1 Compare July 24, 2024 19:51
@vtjnash vtjnash added the merge me PR is reviewed. Merge when all tests are passing label Jul 24, 2024
@giordano giordano merged commit 0bb650c into master Jul 25, 2024
6 of 8 checks passed
@giordano giordano deleted the jn/REPL-precompile-corrected branch July 25, 2024 10:32
@giordano giordano removed the merge me PR is reviewed. Merge when all tests are passing label Jul 25, 2024
@IanButterworth
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IanButterworth commented Jul 26, 2024 •
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This broke Revise.

% julia +nightly
ERROR: LoadError: InitError: FieldError: type Nothing has no field ast_transforms
Stacktrace:
  [1] getproperty(x::Nothing, f::Symbol)
    @ Base ./Base.jl:49
  [2] __init__()
    @ Revise ~/.julia/packages/Revise/MHio8/src/packagedef.jl:1334
...

https://github.com/timholy/Revise.jl/blob/4ad68c211b9f31db739e451e5f67d842a0f0592e/src/packagedef.jl#L1333-L1335

@IanButterworth IanButterworth mentioned this pull request Jul 26, 2024
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@christiangnrd christiangnrd mentioned this pull request Aug 2, 2024
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@serenity4 serenity4 mentioned this pull request Aug 12, 2024
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lazarusA pushed a commit to lazarusA/julia that referenced this pull request Aug 17, 2024
@vtjnash @lazarusA
[REPL] improve quality of precompile script (JuliaLang#55210)
f4b3177 
This rewrites the REPL precompile script to no longer rely upon ugly
hacks for a cross-process copy and instead supports doing the precompile
wholly within in the current process.
@IanButterworth IanButterworth mentioned this pull request Sep 12, 2024
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@maleadt maleadt mentioned this pull request Feb 20, 2025
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@vchuravy vchuravy vchuravy approved these changes

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@vtjnash @IanButterworth @vchuravy @giordano