[Rust] Provide option to override default package / file names

[andygrove]

Language: Rust
OS: Ubuntu 16.04
GCC: 5.4.0

When generating Rust code, I could not find any option to specify a package name to use and had to hand-modify the generated code to use the desired package name. I also had to rename the generated files to remove the _generated suffix and make the file names lower case.

[rw]

@aardappel Do you have any thoughts on how to re-use functionality for this from the other language ports?

[aardappel]

I am not sure what the problem is. Your schemas have e.g. namespace org.apache.arrow.flatbuf, which I presume generate the corresponding package name in Rust, what needs to be changed about this?

Why do the files have to be renamed?

so I had to manually search and replace to change type__typetotype_type. A union appends typeto a field. I guess the base field name got renamed totypebecausetype` is reserved? I guess you could special-case this, but I'm not sure it is worth it.

[andygrove]

The issue I'm having is described well in #342 but the summary is that the Java-style namespace specified in the schema file is not friendly for Rust. The flatc generator has namespace overrides for some languages but not Rust. I guess I am requesting that feature e.g. --rust-namespace

[rope-hmg]

I would like to remove the _generated from filename because in typescript we have a linter rule that forces PascalCase for file names and MyFile_generated.ts is making it sad. Does this options exist? I have a look though the cli output for -h, but couldn't see anything. That could just have been me being blind though.

Thanks

[mavam]

I'm having the same problem as @rope-hmg. I'd like to to rename my *_generated.h files, but the C++ headers hardcode #include "foo_generated.h", so it would be really tedious to do this.

What would be great to have is a switch --suffix .hpp so that I can have foo.hpp instead of foo_generated.h as output.

[rw]

Might be worth creating a separate issue that is not Rust-specific.

[github-actions]

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