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lint: Improve ffi-unsafe enum lint warning #15893

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lint: Improve ffi-unsafe enum lint warning #15893

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6 changes: 3 additions & 3 deletions src/librustc/lint/builtin.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -358,9 +358,9 @@ impl LintPass for CTypes {
def::DefTy(def_id) => {
if !adt::is_ffi_safe(cx.tcx, def_id) {
cx.span_lint(CTYPES, ty.span,
"found enum type without foreign-function-safe \
representation annotation in foreign module");
// hmm... this message could be more helpful
"found enum type without foreign-function-safe
representation annotation in foreign module, consider \
adding a #[repr(...)] attribute to the enumeration");
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Of course, the message is only a suggestion - if someone's got something even better I'll happily change it. As long as the resulting message actually tells me what I could do to fix it, I'll be happy :-)

}
}
_ => ()
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