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// force-host
#![feature(rustc_private)]
// Load rustc as a plugin to get macros.
extern crate rustc_driver;
extern crate rustc_hir;
#[macro_use]
extern crate rustc_lint;
#[macro_use]
extern crate rustc_session;
use rustc_driver::plugin::Registry;
use rustc_lint::{LateContext, LateLintPass, LintArray, LintContext, LintId, LintPass};
declare_lint!(TEST_LINT, Warn, "Warn about items named 'lintme'");
declare_lint!(PLEASE_LINT, Warn, "Warn about items named 'pleaselintme'");
declare_lint_pass!(Pass => [TEST_LINT, PLEASE_LINT]);
impl<'tcx> LateLintPass<'tcx> for Pass {
fn check_item(&mut self, cx: &LateContext, it: &rustc_hir::Item) {
match it.ident.as_str() {
"lintme" => cx.lint(TEST_LINT, |lint| {
lint.build("item is named 'lintme'").set_span(it.span).emit();
}),
"pleaselintme" => cx.lint(PLEASE_LINT, |lint| {
lint.build("item is named 'pleaselintme'").set_span(it.span).emit();
}),
_ => {}
}
}
}
#[no_mangle]
fn __rustc_plugin_registrar(reg: &mut Registry) {
reg.lint_store.register_lints(&[&TEST_LINT, &PLEASE_LINT]);
reg.lint_store.register_late_pass(|_| Box::new(Pass));
reg.lint_store.register_group(
true,
"lint_me",
None,
vec![LintId::of(&TEST_LINT), LintId::of(&PLEASE_LINT)],
);
}
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