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Pass the error to inject_listener_closed method (#1517)

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* Pass the error to inject_listener_closed method

If there is an error when the listener closes, found in the
`NetworkEvent::ListenerClosed` `reason` field, we would like to pass it
on to the `inject_listener_closed()` method so that implementors of this
method have access to it.

Add an error parameter to `inject_listener_closed`.  Convert the
`reason` field from a `Result` to an `Option` and if there is an error
pass `Some(error)` at the method call site.

* Pass 'reason' as a Result

* Finish change

Co-authored-by: Pierre Krieger <pierre.krieger1708@gmail.com>
This commit is contained in:
Tobin Harding
2020-04-01 22:49:42 +10:00
committed by GitHub
parent 3f12a5ceaa
commit b1059cd801
3 changed files with 8 additions and 6 deletions
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6
misc/core-derive/src/lib.rs
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@ -271,8 +271,8 @@ fn build_struct(ast: &DeriveInput, data_struct: &DataStruct) -> TokenStream {
return None
}
Some(match field.ident {
Some(ref i) => quote!(self.#i.inject_listener_closed(id);),
None => quote!(self.#field_n.inject_listener_closed(id);)
Some(ref i) => quote!(self.#i.inject_listener_closed(id, reason);),
None => quote!(self.#field_n.inject_listener_closed(id, reason);)
})
})
};
@ -469,7 +469,7 @@ fn build_struct(ast: &DeriveInput, data_struct: &DataStruct) -> TokenStream {
#(#inject_listener_error_stmts);*
}
fn inject_listener_closed(&mut self, id: #listener_id) {
fn inject_listener_closed(&mut self, id: #listener_id, reason: Result<(), &std::io::Error>) {
#(#inject_listener_closed_stmts);*
}