rustc_session::output

Function validate_crate_name

Source 
pub fn validate_crate_name(
    sess: &Session,
    crate_name: Symbol,
    span: Option<Span>,
)
Expand description

Validate the given crate name.

Note that this validation is more permissive than identifier parsing. It considers non-empty sequences of alphanumeric and underscore characters to be valid crate names. Most notably, it accepts names starting with a numeric character like 0!

Furthermore, this shouldn’t be taken as the canonical crate name validator. Other places may use a more restrictive grammar (e.g., identifier or ASCII identifier).