mokuya 0.0.7

Generic procedural macro helpers for parsing, type analysis, and derive macro generation.
Documentation 
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use quote::quote;
use syn::Path;

pub fn get_function_args(syn_path: &Path) -> Option<proc_macro2::TokenStream> {
    if let Some(segment) = syn_path.segments.last()
        && let syn::PathArguments::AngleBracketed(args) = &segment.arguments
    {
        let args_tokens = args
            .args
            .iter()
            .filter_map(|arg| {
                if let syn::GenericArgument::Type(ty) = arg {
                    Some(quote! { #ty })
                } else {
                    None
                }
            })
            .collect::<Vec<_>>();
        return Some(quote! { #(#args_tokens),* });
    }
    None
}