Error occurred when I Push! this to Array{Any}

[cheng wang]

Hello everyone,

I got this error by the compiler (Julia 0.4rc):

ERROR: LoadError: MethodError: `push!` has no method matching push!(::Array{Any,1}, ::Tuple{Array{ASCIIString,1},Array{ASCIIString,1},TestFilter})

As far as I see, this pushing should be ok. Could someone help ?

Best,

Cheng

[Simon Danisch]

This should work and nowadays overwritting push! should throw an error, so it's unlikely that you did this.

What usually helps is to give a minimal reproducable example, e.g. via a github gist.

Best,

Simon

[cheng wang]

Simon, I defined a new push! methods.

However the error thrown is "MethodError: `push!` has no method..." followed by "you may have intended to import Base.push!"

So I misunderstood the error message.

After I changed the function name, the error is fixed. Thanks very much!

Btw, what is the right way to add new methods for `push!`? Is this discouraged?

[Kristoffer Carlsson]

The right way is to import Base.push! and then add your owns. You probably shouldn't overwrite the ones for Base types but for your own types, it is perfectly acceptable.

[cheng wang]

Thanks!