rust port: use `enum` for `tag` in load module

[fahdfady]

functions like from_single_file in load module use tag as parameter:

pub fn from_single_file(
    tag: impl ToString,
    script: impl AsRef<Path>,
) -> Result<(), MetaCallLoaderError> {
    from_file(tag, [script])
}

and usage of this in example:

   // Load the file
    load::from_single_file("ts", "sum.ts").unwrap();

the problem is, MetaCall uses a set of tags. so for example if you tried to pass rust it'll fail, because it is expecting rs as a tag parameter.

Solution

Use enum for our provided tags, this will help developers predict the tag names through LSP

[fahdfady]

@viferga can you help by providing where we can find the tag names we're expecting in metacall? like node rs ts

[hulxv]

It seems very cool. You are right at LSP point. We can make a simple enum contains all supported languages via metacall and just implement ToString

[hulxv]

@viferga can you help by providing where we can find the tag names we're expecting in metacall? like node rs ts

You can find list of loaders here

https://github.com/metacall/core/tree/develop/source/loaders