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Add error hint for MethodErrors on LogDensityModel #146

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merged 6 commits into from
Sep 12, 2024
Merged

Add error hint for MethodErrors on LogDensityModel #146

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f73b630
Add hint for MethodErrors on LogDensityModel
penelopeysm Sep 11, 2024
4ca1769
Apply suggestions from code review
penelopeysm Sep 11, 2024
63e50dc
Bump patch version
penelopeysm Sep 11, 2024
6dfce50
Bump minor version instead
penelopeysm Sep 11, 2024
d514c33
Test that error message is correctly thrown
penelopeysm Sep 11, 2024
03d0c72
Only test error hint if it can be defined
penelopeysm Sep 12, 2024
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15 changes: 15 additions & 0 deletions src/AbstractMCMC.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -88,4 +88,19 @@ include("stepper.jl")
include("transducer.jl")
include("logdensityproblems.jl")

function __init__()
if isdefined(Base.Experimental, :register_error_hint)
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Base.Experimental.register_error_hint(MethodError) do io, exc, argtypes, _
if Base.parentmodule(exc.f) == LogDensityProblems &&
any(a -> a <: LogDensityModel, argtypes)
printstyled(
io,
"\nAbstractMCMC.LogDensityModel is a wrapper and does not itself implement the LogDensityProblems.jl interface. To use LogDensityProblems.jl methods, access the inner type with (e.g.) `logdensity(model.logdensity, params)` instead of `logdensity(model, params)`.";
color=:cyan,
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)
end
end
end
end

end # module AbstractMCMC
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