43 lines
1.3 KiB
Rust
43 lines
1.3 KiB
Rust
// Copyright 2018 The Rust Project Developers. See the COPYRIGHT
|
|
// file at the top-level directory of this distribution and at
|
|
// http://rust-lang.org/COPYRIGHT.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
|
|
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
|
|
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
|
|
// option. This file may not be copied, modified, or distributed
|
|
// except according to those terms.
|
|
|
|
#[macro_use]
|
|
extern crate rustc;
|
|
extern crate syntax_pos;
|
|
|
|
use rustc::session::Session;
|
|
use syntax_pos::Span;
|
|
|
|
pub fn validate_crate_name(sess: Option<&Session>, s: &str, sp: Option<Span>) {
|
|
let mut err_count = 0;
|
|
{
|
|
let mut say = |s: &str| {
|
|
match (sp, sess) {
|
|
(_, None) => bug!("{}", s),
|
|
(Some(sp), Some(sess)) => sess.span_err(sp, s),
|
|
(None, Some(sess)) => sess.err(s),
|
|
}
|
|
err_count += 1;
|
|
};
|
|
if s.is_empty() {
|
|
say("crate name must not be empty");
|
|
}
|
|
for c in s.chars() {
|
|
if c.is_alphanumeric() { continue }
|
|
if c == '_' { continue }
|
|
say(&format!("invalid character `{}` in crate name: `{}`", c, s));
|
|
}
|
|
}
|
|
|
|
if err_count > 0 {
|
|
sess.unwrap().abort_if_errors();
|
|
}
|
|
}
|