Checks for calls to rustc_errors::DiagCtxtHandle::warn from within a register_lints
function.
Dylint lists a library’s lints by calling the library’s register_lints function and
comparing the lints that are registered before and after the call. If the library’s
register_lints functions emits warnings, they will be emitted when a user tries to list
the library’s lints.
pub fn register_lints(sess: &rustc_session::Session, lint_store: &mut rustc_lint::LintStore) {
if condition {
sess.dcx().warn("something bad happened");
}
}
Use instead:
impl<'tcx> rustc_lint::LateLintPass<'tcx> for LintPass {
fn check_crate(&mut self, cx: &rustc_lint::LateContext<'tcx>) {
if condition {
cx.sess().dcx().warn("something bad happened");
}
}
}