Function syntax::diagnostics::metadata::output_metadata [] [src]

pub fn output_metadata(ecx: &ExtCtxt,
                       prefix: &str,
                       name: &str,
                       err_map: &ErrorMap)
                       -> Result<(), Box<Error>>
🔬 This is a nightly-only experimental API. (rustc_private)

Write metadata for the errors in err_map to disk, to a file corresponding to prefix/name.

For our current purposes the prefix is the target architecture and the name is a crate name. If an error occurs steps will be taken to ensure that no file is created.