Fix type spec for AMQP 1.0 address

The target address can be null which denotes the anonymous terminus.
https://docs.oasis-open.org/amqp/anonterm/v1.0/anonterm-v1.0.html

Author: ansd

deps/amqp10_client/src/amqp10_client.erl

@@ -47,6 +47,7 @@
 
 -type terminus_durability() :: amqp10_client_session:terminus_durability().
 
+-type terminus_address() :: amqp10_client_session:terminus_address().
 -type target_def() :: amqp10_client_session:target_def().
 -type source_def() :: amqp10_client_session:source_def().
 
@@ -64,6 +65,7 @@
               snd_settle_mode/0,
               rcv_settle_mode/0,
               terminus_durability/0,
+              terminus_address/0,
               target_def/0,
               source_def/0,
               attach_role/0,
@@ -170,7 +172,7 @@ attach_sender_link_sync(Session, Name, Target) ->
 %% @doc Synchronously attach a link on 'Session'.
 %% This is a convenience function that awaits attached event
 %% for the link before returning.
--spec attach_sender_link_sync(pid(), binary(), binary(),
+-spec attach_sender_link_sync(pid(), binary(), terminus_address(),
                               snd_settle_mode()) ->
     {ok, link_ref()} | link_timeout.
 attach_sender_link_sync(Session, Name, Target, SettleMode) ->
@@ -179,7 +181,7 @@ attach_sender_link_sync(Session, Name, Target, SettleMode) ->
 %% @doc Synchronously attach a link on 'Session'.
 %% This is a convenience function that awaits attached event
 %% for the link before returning.
--spec attach_sender_link_sync(pid(), binary(), binary(),
+-spec attach_sender_link_sync(pid(), binary(), terminus_address(),
                               snd_settle_mode(), terminus_durability()) ->
     {ok, link_ref()} | link_timeout.
 attach_sender_link_sync(Session, Name, Target, SettleMode, Durability) ->
@@ -199,7 +201,7 @@ attach_sender_link_sync(Session, Name, Target, SettleMode, Durability) ->
 %% This is asynchronous and will notify completion of the attach request to the
 %% caller using an amqp10_event of the following format:
 %% {amqp10_event, {link, LinkRef, attached | {detached, Why}}}
--spec attach_sender_link(pid(), binary(), binary()) -> {ok, link_ref()}.
+-spec attach_sender_link(pid(), binary(), terminus_address()) -> {ok, link_ref()}.
 attach_sender_link(Session, Name, Target) ->
     % mixed should work with any type of msg
     attach_sender_link(Session, Name, Target, mixed).
@@ -208,7 +210,7 @@ attach_sender_link(Session, Name, Target) ->
 %% This is asynchronous and will notify completion of the attach request to the
 %% caller using an amqp10_event of the following format:
 %% {amqp10_event, {link, LinkRef, attached | {detached, Why}}}
--spec attach_sender_link(pid(), binary(), binary(),
+-spec attach_sender_link(pid(), binary(), terminus_address(),
                          snd_settle_mode()) ->
     {ok, link_ref()}.
 attach_sender_link(Session, Name, Target, SettleMode) ->
@@ -218,7 +220,7 @@ attach_sender_link(Session, Name, Target, SettleMode) ->
 %% This is asynchronous and will notify completion of the attach request to the
 %% caller using an amqp10_event of the following format:
 %% {amqp10_event, {link, LinkRef, attached | {detached, Why}}}
--spec attach_sender_link(pid(), binary(), binary(),
+-spec attach_sender_link(pid(), binary(), terminus_address(),
                          snd_settle_mode(), terminus_durability()) ->
     {ok, link_ref()}.
 attach_sender_link(Session, Name, Target, SettleMode, Durability) ->

deps/amqp10_client/src/amqp10_client_session.erl

@@ -65,19 +65,22 @@
 -define(INITIAL_DELIVERY_COUNT, ?UINT_MAX - 2).
 
 -type link_name() :: binary().
--type link_address() :: binary().
+%% https://docs.oasis-open.org/amqp/core/v1.0/os/amqp-core-messaging-v1.0-os.html#type-address-string
+%% or
+%% https://docs.oasis-open.org/amqp/anonterm/v1.0/anonterm-v1.0.html
+-type terminus_address() :: binary() | null.
 -type link_role() :: sender | receiver.
--type link_target() :: {pid, pid()} | binary() | undefined.
+-type link_target() :: {pid, pid()} | terminus_address() | undefined.
 %% "The locally chosen handle is referred to as the output handle." [2.6.2]
 -type output_handle() :: link_handle().
 %% "The remotely chosen handle is referred to as the input handle." [2.6.2]
 -type input_handle() :: link_handle().
 
 -type terminus_durability() :: none | configuration | unsettled_state.
 
--type target_def() :: #{address => link_address(),
+-type target_def() :: #{address => terminus_address(),
                         durable => terminus_durability()}.
--type source_def() :: #{address => link_address(),
+-type source_def() :: #{address => terminus_address(),
                         durable => terminus_durability()}.
 
 -type attach_role() :: {sender, target_def()} | {receiver, source_def(), pid()}.
@@ -112,6 +115,7 @@
               terminus_durability/0,
               attach_args/0,
               attach_role/0,
+              terminus_address/0,
               target_def/0,
               source_def/0,
               filter/0,