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use crate::{Diagnostic, DiagnosticsContext};
// Diagnostic: unresolved-extern-crate
//
// This diagnostic is triggered if rust-analyzer is unable to discover referred extern crate.
pub(crate) fn unresolved_extern_crate(
ctx: &DiagnosticsContext<'_>,
d: &hir::UnresolvedExternCrate,
) -> Diagnostic {
Diagnostic::new(
"unresolved-extern-crate",
"unresolved extern crate",
ctx.sema.diagnostics_display_range(d.decl.clone().map(|it| it.into())).range,
)
}
#[cfg(test)]
mod tests {
use crate::tests::check_diagnostics;
#[test]
fn unresolved_extern_crate() {
check_diagnostics(
r#"
//- /main.rs crate:main deps:core
extern crate core;
extern crate doesnotexist;
//^^^^^^^^^^^^^^^^^^^^^^^^^^ unresolved extern crate
//- /lib.rs crate:core
"#,
);
}
#[test]
fn extern_crate_self_as() {
cov_mark::check!(extern_crate_self_as);
check_diagnostics(
r#"
//- /lib.rs
extern crate doesnotexist;
//^^^^^^^^^^^^^^^^^^^^^^^^^^ unresolved extern crate
// Should not error.
extern crate self as foo;
struct Foo;
use foo::Foo as Bar;
"#,
);
}
}
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