This is an MWE simplified from some code that tries to implement * for a type and AbstractStrings. In this MWE, the intention is to return a Foo whenever any argument is a Foo. Is this a bug, or user error? I think that the * method should be more specific than the *(s1::Union{AbstractChar, Abstra…

Like you said, Base doesn’t have a *(::AbstractString, ::AbstractString...) method. Replace that 3rd method and you find: julia> f(s1::Union{AbstractChar, AbstractString}, ss::Union{AbstractChar, AbstractString}...) = 0 f (generic function with 3 methods) julia> f("h", "i") ERROR: MethodError: f(:…

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[image] Tamas_Papp: I think that the * method should be more specific than the *(s1::Union{AbstractChar, AbstractString}, ss::Union{AbstractChar, AbstractString}...) in Base It’s actually ambiguous for *(::String, ::String), you can see the MethodError by making a new function with the argum…

[image] Benny: you can see the MethodError by making a new function with the argument signatures That seems to work for me. julia> struct Foo end julia> f(::Foo, ::AbstractString...) = Foo() f (generic function with 1 method) julia> f(::AbstractString, ::Union{AbstractString,Foo}...) = Foo…

Fatal: error thrown and no exception handler available for a * method

General Usage

oheil August 28, 2023, 8:09am 2

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Fatal: error thrown and no exception handler available for a * method

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