44 lines
1.1 KiB
Rust
44 lines
1.1 KiB
Rust
// force-host
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#![feature(rustc_private)]
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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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extern crate rustc_ast;
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extern crate rustc_span;
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use rustc_ast::attr;
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use rustc_driver::plugin::Registry;
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use rustc_lint::{LateContext, LateLintPass, LintContext};
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use rustc_span::def_id::CRATE_DEF_ID;
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use rustc_span::symbol::Symbol;
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declare_lint! {
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CRATE_NOT_OKAY,
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Warn,
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"crate not marked with #![crate_okay]"
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}
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declare_lint_pass!(Pass => [CRATE_NOT_OKAY]);
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impl<'tcx> LateLintPass<'tcx> for Pass {
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fn check_crate(&mut self, cx: &LateContext) {
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let attrs = cx.tcx.hir().attrs(rustc_hir::CRATE_HIR_ID);
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let span = cx.tcx.def_span(CRATE_DEF_ID);
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if !attr::contains_name(attrs, Symbol::intern("crate_okay")) {
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cx.lint(CRATE_NOT_OKAY, "crate is not marked with #![crate_okay]", |lint| {
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lint.set_span(span)
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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(&[&CRATE_NOT_OKAY]);
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reg.lint_store.register_late_pass(|_| Box::new(Pass));
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}
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