fix Base.copy definitions

[penelopeysm]

No description provided.

[github-actions]

Benchmark Report

• this PR's head: c9a636b7775fcbf68d8a1619e7899d2133a5eff3
• base branch: 1285327a0230030f286d64ce2329444729b97e30

Computer Information

Julia Version 1.11.9
Commit 53a02c0720c (2026-02-06 00:27 UTC)
Build Info:
  Official https://julialang.org/ release
Platform Info:
  OS: Linux (x86_64-linux-gnu)
  CPU: 4 × AMD EPYC 7763 64-Core Processor
  WORD_SIZE: 64
  LLVM: libLLVM-16.0.6 (ORCJIT, znver3)
Threads: 1 default, 0 interactive, 1 GC (on 4 virtual cores)

Benchmark Results

┌───────────────────────┬───────┬─────────────┬────────┬───────────────────────────────┬────────────────────────────┬─────────────────────────────────┐
│                       │       │             │        │       t(eval) / t(ref)        │     t(grad) / t(eval)      │        t(grad) / t(ref)         │
│                       │       │             │        │ ─────────┬──────────┬──────── │ ───────┬─────────┬──────── │ ──────────┬───────────┬──────── │
│                 Model │   Dim │  AD Backend │ Linked │     base │  this PR │ speedup │   base │ this PR │ speedup │      base │   this PR │ speedup │
├───────────────────────┼───────┼─────────────┼────────┼──────────┼──────────┼─────────┼────────┼─────────┼─────────┼───────────┼───────────┼─────────┤
│               Dynamic │    10 │    mooncake │   true │   289.77 │   285.95 │    1.01 │   7.76 │    8.27 │    0.94 │   2249.71 │   2365.85 │    0.95 │
│                   LDA │    12 │ reversediff │   true │  2703.91 │  3848.07 │    0.70 │   4.46 │    4.09 │    1.09 │  12064.05 │  15728.29 │    0.77 │
│   Loop univariate 10k │ 10000 │    mooncake │   true │ 31336.61 │ 31315.60 │    1.00 │   6.57 │    6.38 │    1.03 │ 205797.15 │ 199787.13 │    1.03 │
├───────────────────────┼───────┼─────────────┼────────┼──────────┼──────────┼─────────┼────────┼─────────┼─────────┼───────────┼───────────┼─────────┤
│    Loop univariate 1k │  1000 │    mooncake │   true │  3175.90 │  3184.86 │    1.00 │   6.54 │    6.34 │    1.03 │  20780.39 │  20180.94 │    1.03 │
│      Multivariate 10k │ 10000 │    mooncake │   true │ 30659.96 │ 31078.48 │    0.99 │  10.29 │   10.27 │    1.00 │ 315467.53 │ 319218.19 │    0.99 │
│       Multivariate 1k │  1000 │    mooncake │   true │  3255.41 │  3313.94 │    0.98 │   9.65 │    9.67 │    1.00 │  31410.88 │  32032.64 │    0.98 │
├───────────────────────┼───────┼─────────────┼────────┼──────────┼──────────┼─────────┼────────┼─────────┼─────────┼───────────┼───────────┼─────────┤
│ Simple assume observe │     1 │ forwarddiff │  false │     0.88 │     0.88 │    1.00 │  10.52 │   10.48 │    1.00 │      9.23 │      9.23 │    1.00 │
│           Smorgasbord │   201 │ forwarddiff │  false │   956.26 │   950.75 │    1.01 │  69.28 │   72.13 │    0.96 │  66244.96 │  68573.55 │    0.97 │
│           Smorgasbord │   201 │      enzyme │   true │  1286.98 │  1298.21 │    0.99 │   4.89 │    4.86 │    1.01 │   6290.46 │   6308.33 │    1.00 │
├───────────────────────┼───────┼─────────────┼────────┼──────────┼──────────┼─────────┼────────┼─────────┼─────────┼───────────┼───────────┼─────────┤
│           Smorgasbord │   201 │ forwarddiff │   true │  1297.45 │  1323.72 │    0.98 │  68.92 │   65.97 │    1.04 │  89425.64 │  87323.26 │    1.02 │
│           Smorgasbord │   201 │    mooncake │   true │  1282.49 │  1288.18 │    1.00 │   4.71 │    4.76 │    0.99 │   6038.68 │   6131.41 │    0.98 │
│           Smorgasbord │   201 │ reversediff │   true │  1280.49 │  1290.68 │    0.99 │ 132.83 │  129.71 │    1.02 │ 170089.24 │ 167418.47 │    1.02 │
├───────────────────────┼───────┼─────────────┼────────┼──────────┼──────────┼─────────┼────────┼─────────┼─────────┼───────────┼───────────┼─────────┤
│              Submodel │     1 │    mooncake │   true │     0.88 │     0.88 │    1.00 │  26.87 │   28.92 │    0.93 │     23.58 │     25.41 │    0.93 │
└───────────────────────┴───────┴─────────────┴────────┴──────────┴──────────┴─────────┴────────┴─────────┴─────────┴───────────┴───────────┴─────────┘

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 78.13%. Comparing base (1285327) to head (c9a636b).
⚠️ Report is 2 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1339      +/-   ##
==========================================
+ Coverage   77.93%   78.13%   +0.19%     
==========================================
  Files          50       50              
  Lines        3585     3590       +5     
==========================================
+ Hits         2794     2805      +11     
+ Misses        791      785       -6     

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