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JuliaLang / julia / 1451
77%
master: 77%

Build:
Build:
LAST BUILD BRANCH: main
DEFAULT BRANCH: master
Ran 28 Sep 2025 07:49AM UTC
Jobs 3
Files 344
Run time 1min
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27 Sep 2025 08:07PM UTC coverage: 77.173%. Remained the same
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force specialization of dims arguments that may be `Colon` (#59474)

In Julia, the colon (`:`, `Colon`) is a function for constructing
ranges. We have:

```julia
(:) isa Function
```

However, sadly, as an instance of punning, the same object is often also
used as an index for choosing an entire dimension.

A problem is that `Function` objects are a special case when it comes to
specializing method code for given argument types: by default a `:`
argument will get specialized as a `Function`, instead of as a `Colon`.

This change forces specialization of dims arguments in a bunch of
methods in `base/reducedim.jl`. Probably similar changes would be
beneficial across the code base, and across the ecosystem.

I believe this change will make the sysimage more resistant to
invalidation, we'll see once it builds.

35 of 35 new or added lines in 5 files covered. (100.0%)

46 existing lines in 12 files now uncovered.

61443 of 79617 relevant lines covered (77.17%)

22581853.64 hits per line

Uncovered Existing Lines

Lines Coverage ∆ File
1
86.88
-0.63% base/experimental.jl
1
94.51
-0.2% base/io.jl
1
72.29
-0.18% base/runtime_internals.jl
1
81.99
-0.13% base/stream.jl
1
33.33
-1.52% base/Terminals.jl
2
76.81
-0.47% base/boot.jl
2
68.81
0.13% base/errorshow.jl
3
95.83
-2.08% base/asyncmap.jl
5
69.56
-0.71% base/reflection.jl
5
89.89
-2.81% base/threadingconstructs.jl
9
73.82
-0.31% base/loading.jl
15
80.98
-0.96% stdlib/REPL/src/LineEdit.jl
Jobs
ID Job ID Ran Files Coverage
1451 linux-coverage - 1451 28 Sep 2025 10:17AM UTC 343
76.05
1451 macos-coverage - 1451 28 Sep 2025 07:49AM UTC 344
76.02
1451 windows-coverage - 1451 28 Sep 2025 11:37AM UTC 299
65.81
Source Files on build 1451
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  • List 344
  • Changed 180
  • Source Changed 0
  • Coverage Changed 180
Coverage ∆ File Lines Relevant Covered Missed Hits/Line
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