src/test/auxiliary/lint_for_crate.rs

   1 // Copyright 2015 The Rust Project Developers. See the COPYRIGHT
   2 // file at the top-level directory of this distribution and at
   3 // http://rust-lang.org/COPYRIGHT.
   4 //
   5 // Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
   6 // http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
   7 // <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
   8 // option. This file may not be copied, modified, or distributed
   9 // except according to those terms.
  10
  11 // force-host
  12
  13 #![feature(plugin_registrar, rustc_private)]
  14 #![feature(box_syntax)]
  15
  16 #[macro_use] extern crate rustc;
  17 extern crate rustc_plugin;
  18 extern crate syntax;
  19
  20 use rustc::lint::{LateContext, LintContext, LintPass, LateLintPass, LateLintPassObject, LintArray};
  21 use rustc_plugin::Registry;
  22 use rustc::hir;
  23 use syntax::attr;
  24
  25 declare_lint!(CRATE_NOT_OKAY, Warn, "crate not marked with #![crate_okay]");
  26
  27 struct Pass;
  28
  29 impl LintPass for Pass {
  30     fn get_lints(&self) -> LintArray {
  31         lint_array!(CRATE_NOT_OKAY)
  32     }
  33 }
  34
  35 impl LateLintPass for Pass {
  36     fn check_crate(&mut self, cx: &LateContext, krate: &hir::Crate) {
  37         if !attr::contains_name(&krate.attrs, "crate_okay") {
  38             cx.span_lint(CRATE_NOT_OKAY, krate.span,
  39                          "crate is not marked with #![crate_okay]");
  40         }
  41     }
  42 }
  43
  44 #[plugin_registrar]
  45 pub fn plugin_registrar(reg: &mut Registry) {
  46     reg.register_late_lint_pass(box Pass as LateLintPassObject);
  47 }