https://github.com/juliadebug/cassetteoverlay.jl

An experimental simple method overlay mechanism for Julia
https://github.com/juliadebug/cassetteoverlay.jl

Last synced: 8 months ago
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An experimental simple method overlay mechanism for Julia

• Host: GitHub
• URL: https://github.com/juliadebug/cassetteoverlay.jl
• Owner: JuliaDebug
• License: mit
• Created: 2022-11-28T05:35:39.000Z (over 3 years ago)
• Default Branch: master
• Last Pushed: 2025-10-01T09:10:59.000Z (9 months ago)
• Last Synced: 2025-10-14T11:52:25.278Z (9 months ago)
• Language: Julia
• Homepage:
• Size: 88.9 KB
• Stars: 32
• Watchers: 3
• Forks: 4
• Open Issues: 5
• Metadata Files:
  • Readme: README.md
  • License: LICENSE.md

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README

          
# CassetteOverlay.jl

```julia

julia> using CassetteOverlay, Test

julia> @MethodTable sintable;

julia> @overlay sintable sin(x::Union{Float32,Float64}) = cos(x);

julia> pass = @overlaypass sintable;

# run with the overlayed method

julia> @test pass(42) do a

           sin(a) * cos(a)

       end == cos(42)^2

Test Passed

# invalidate the overlayed method and make it return `cos∘sin`

julia> @overlay sintable sin(x::Union{Float32,Float64}) = cos(x) * @nonoverlay sin(x);

julia> @test pass(42) do a

           sin(a) * cos(a)

       end == cos(42)^2 * sin(42)

Test Passed

```