JuliaLang / julia / #37996

77%

Build Type

push

local

Committed by web-flow

Commit Message

bpart: Give a warning when accessing a backdated const binding (#57133)

This implements the strategy proposed in
https://github.com/JuliaLang/julia/pull/57102#issuecomment-2605511266.
Example:
```
julia> function foo(i)
           eval(:(const x = $i))
           x
       end
foo (generic function with 1 method)

julia> foo(1)
WARNING: Detected access to binding Main.x in a world prior to its definition world.
  Julia 1.12 has introduced more strict world age semantics for global bindings.
  !!! This code may malfunction under Revise.
  !!! This code will error in future versions of Julia.
Hint: Add an appropriate `invokelatest` around the access to this binding.
1
```

The warning is triggered once per binding to avoid spamming for repeated
access.

Run Details

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459 existing lines in 18 files now uncovered.

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