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From: David Bremner <david@tethera.net>
To: Kamil Klimkiewicz <miglanz@gmail.com>, notmuch@notmuchmail.org
Subject: Re: [PATCH] go: update bindings to compile with notmuch 0.25
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Date: Sat, 12 Aug 2017 10:15:40 -0400
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Kamil Klimkiewicz <miglanz@gmail.com> writes:

> Attached is a simple patch that fixes go bindings to compile with
> notmuch 0.25. Please note it doesn't change the go API, ie. go methods
> *don't* return Status values. I am not sure you also want to break go
> API with the update. If you do, I can update the patch to return
> go-idiomatic (*Messages, Status) tuple.

for some reason this patch doesn't apply to current master

> ---
>  contrib/go/src/notmuch/notmuch.go | 18 +++++++++++-------
>  1 file changed, 11 insertions(+), 7 deletions(-)
>
> diff --git a/contrib/go/src/notmuch/notmuch.go
> b/contrib/go/src/notmuch/notmuch.go
> index 2d684311..936f927c 100644
> --- a/contrib/go/src/notmuch/notmuch.go
> +++ b/contrib/go/src/notmuch/notmuch.go
> @@ -455,11 +455,12 @@ func (self *Query) GetSort() Sort {
>   * If a Xapian exception occurs this function will return NULL.
>   */
>  func (self *Query) SearchThreads() *Threads {
> -       threads := C.notmuch_query_search_threads(self.query)
> -       if threads == nil {
> +       var threads Threads
> +       C.notmuch_query_search_threads(self.query, &threads.threads)
> +       if threads.threads == nil {

it seems like it would be better to check the return value of
notmuch_query_search_threads here, wouldn't it?
>  /* Destroy a notmuch_query_t along with any associated resources.
> @@ -531,7 +533,9 @@ func (self *Query) Destroy() {
>   * printing a message).
>   */
>  func (self *Query) CountMessages() uint {
> -       return uint(C.notmuch_query_count_messages(self.query))
> +       var count C.uint
> +       C.notmuch_query_count_messages(self.query, &count)
> +       return uint(count)
>  }

Here especially you should check the return value since the API does not
promise anything about the value of count in case of errors.

d