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