Add constructors for reading extension support

src/common/serialization/clap/host.cpp

@@ -26,5 +26,8 @@ Host::Host(const clap_host_t& original)
       url(original.url ? std::optional(original.url) : std::nullopt),
       version((assert(original.version), original.version)) {}
 
+// TODO: Add extensions
+SupportedHostExtensions::SupportedHostExtensions(const clap_host& host) {}
+
 }  // namespace host
 }  // namespace clap

src/common/serialization/clap/host.h

@@ -77,6 +77,14 @@ struct Host {
  * same extensions available to the bridged CLAP plugins using proxies.
  */
 struct SupportedHostExtensions {
+    /**
+     * Read the supported extensions from a native CLAP host. This is only valid
+     * once the native host has called `clap_host::init()`.
+     */
+    SupportedHostExtensions(const clap_host& host);
+
+    SupportedHostExtensions() noexcept {}
+
     // Don't forget to add new extensions to the log output
     // TODO: Support extensions
 

src/common/serialization/clap/plugin.cpp

@@ -74,5 +74,9 @@ const clap_plugin_descriptor_t* Descriptor::get() const {
     return &clap_descriptor;
 }
 
+// TODO: Add extensions
+SupportedPluginExtensions::SupportedPluginExtensions(
+    const clap_plugin& plugin) {}
+
 }  // namespace plugin
 }  // namespace clap

src/common/serialization/clap/plugin.h

@@ -110,6 +110,14 @@ struct Descriptor {
  * Extensions supported by the plugin. Queried after `clap_plugin::init()`.
  */
 struct SupportedPluginExtensions {
+    /**
+     * Read the supported extensions from a CLAP plugin. This is only valid
+     * after `clap_plugin::init()` has been called on the plugin.
+     */
+    SupportedPluginExtensions(const clap_plugin& plugin);
+
+    SupportedPluginExtensions() noexcept {}
+
     // Don't forget to add new extensions to the log output
     // TODO: Support extensions