Rename State to PluginState

Now that it is part of the public API.

src/context.rs

@@ -3,7 +3,7 @@
 use crate::param::internals::ParamPtr;
 use crate::param::Param;
 use crate::plugin::NoteEvent;
-use crate::wrapper::state::State;
+use crate::wrapper::state::PluginState;
 
 // TODO: ProcessContext for parameter automation and sending events
 
@@ -83,13 +83,13 @@ pub trait GuiContext: Send + Sync + 'static {
 
     /// Serialize the plugin's current state to a serde-serializable object. Useful for implementing
     /// preset handling within a plugin's GUI.
-    fn get_state(&self) -> State;
+    fn get_state(&self) -> PluginState;
 
     /// Restore the state from a previously serialized state object. This will block the GUI thread
     /// until the state has been restored and a parameter value rescan has been requested from the
     /// host. If the plugin is currently processing audio, then the parameter values will be
     /// restored at the end of the current processing cycle.
-    fn set_state(&self, state: State);
+    fn set_state(&self, state: PluginState);
 }
 
 /// Information about the plugin's transport. Depending on the plugin API and the host not all

src/prelude.rs

@@ -22,4 +22,4 @@ pub use crate::plugin::{
     BufferConfig, BusConfig, ClapPlugin, Editor, NoteEvent, ParentWindowHandle, Plugin,
     ProcessStatus, Vst3Plugin,
 };
-pub use crate::wrapper::state::State;
+pub use crate::wrapper::state::PluginState;

src/wrapper/clap/context.rs

@@ -80,11 +80,11 @@ impl<P: ClapPlugin> GuiContext for WrapperGuiContext<P> {
         }
     }
 
-    fn get_state(&self) -> crate::wrapper::state::State {
+    fn get_state(&self) -> crate::wrapper::state::PluginState {
         self.wrapper.get_state_object()
     }
 
-    fn set_state(&self, state: crate::wrapper::state::State) {
+    fn set_state(&self, state: crate::wrapper::state::PluginState) {
         self.wrapper.set_state_object(state)
     }
 }

src/wrapper/clap/wrapper.rs

@@ -75,7 +75,7 @@ use crate::plugin::{
     BufferConfig, BusConfig, ClapPlugin, Editor, NoteEvent, ParentWindowHandle, ProcessStatus,
 };
 use crate::util::permit_alloc;
-use crate::wrapper::state::{self, State};
+use crate::wrapper::state::{self, PluginState};
 use crate::wrapper::util::{hash_param_id, process_wrapper, strlcpy};
 
 /// How many output parameter changes we can store in our output parameter change queue. Storing
@@ -139,9 +139,9 @@ pub struct Wrapper<P: ClapPlugin> {
     /// In other words, the GUI thread acts as a sender and then as a receiver, while the audio
     /// thread acts as a receiver and then as a sender. That way deallocation can happen on the GUI
     /// thread. All of this happens without any blocking on the audio thread.
-    updated_state_sender: channel::Sender<State>,
+    updated_state_sender: channel::Sender<PluginState>,
     /// The receiver belonging to [`new_state_sender`][Self::new_state_sender].
-    updated_state_receiver: channel::Receiver<State>,
+    updated_state_receiver: channel::Receiver<PluginState>,
 
     /// Needs to be boxed because the plugin object is supposed to contain a static reference to
     /// this.
@@ -928,7 +928,7 @@ impl<P: ClapPlugin> Wrapper<P> {
     /// Get the plugin's state object, may be called by the plugin's GUI as part of its own preset
     /// management. The wrapper doesn't use these functions and serializes and deserializes directly
     /// the JSON in the relevant plugin API methods instead.
-    pub fn get_state_object(&self) -> State {
+    pub fn get_state_object(&self) -> PluginState {
         unsafe {
             state::serialize_object(
                 self.params.clone(),
@@ -941,7 +941,7 @@ impl<P: ClapPlugin> Wrapper<P> {
     /// Update the plugin's internal state, called by the plugin itself from the GUI thread. To
     /// prevent corrupting data and changing parameters during processing the actual state is only
     /// updated at the end of the audio processing cycle.
-    pub fn set_state_object(&self, mut state: State) {
+    pub fn set_state_object(&self, mut state: PluginState) {
         // Use a loop and timeouts to handle the super rare edge case when this function gets called
         // between a process call and the host disabling the plugin
         loop {

src/wrapper/state.rs

@@ -24,7 +24,7 @@ pub enum ParamValue {
 /// A plugin's state so it can be restored at a later point. This object can be serialized and
 /// deserialized using serde.
 #[derive(Debug, Clone, Serialize, Deserialize)]
-pub struct State {
+pub struct PluginState {
     /// The plugin's parameter values. These are stored unnormalized. This mean sthe old values will
     /// be recalled when when the parameter's range gets increased. Doing so may still mess with
     /// parmaeter automation though, depending on how the host impelments that.
@@ -44,7 +44,7 @@ pub(crate) unsafe fn serialize_object(
     plugin_params: Arc<dyn Params>,
     param_by_hash: &HashMap<u32, ParamPtr>,
     param_id_to_hash: &HashMap<String, u32>,
-) -> State {
+) -> PluginState {
     // We'll serialize parmaeter values as a simple `string_param_id: display_value` map.
     let params: HashMap<_, _> = param_id_to_hash
         .iter()
@@ -78,7 +78,7 @@ pub(crate) unsafe fn serialize_object(
     // storing things like sample data.
     let fields = plugin_params.serialize_fields();
 
-    State { params, fields }
+    PluginState { params, fields }
 }
 
 /// Serialize a plugin's state to a vector containing JSON data. This can (and should) be shared
@@ -92,14 +92,14 @@ pub(crate) unsafe fn serialize_json(
     serde_json::to_vec(&plugin_state)
 }
 
-/// Deserialize a plugin's state from a [`State`] object. This is used to allow the plugin to do its
-/// own internal preset management. Returns `false` and logs an error if the state could not be
-/// deserialized.
+/// Deserialize a plugin's state from a [`PluginState`] object. This is used to allow the plugin to
+/// do its own internal preset management. Returns `false` and logs an error if the state could not
+/// be deserialized.
 ///
 /// Make sure to reinitialize plugin after deserializing the state so it can react to the new
 /// parameter values. The smoothers have already been reset by this function.
 pub(crate) unsafe fn deserialize_object(
-    state: &State,
+    state: &PluginState,
     plugin_params: Arc<dyn Params>,
     param_by_hash: &HashMap<u32, ParamPtr>,
     param_id_to_hash: &HashMap<String, u32>,
@@ -162,7 +162,7 @@ pub(crate) unsafe fn deserialize_json(
     param_id_to_hash: &HashMap<String, u32>,
     current_buffer_config: Option<&BufferConfig>,
 ) -> bool {
-    let state: State = match serde_json::from_slice(state) {
+    let state: PluginState = match serde_json::from_slice(state) {
         Ok(s) => s,
         Err(err) => {
             nih_debug_assert_failure!("Error while deserializing state: {}", err);

src/wrapper/vst3/context.rs

@@ -9,7 +9,7 @@ use crate::context::{GuiContext, ProcessContext, Transport};
 use crate::event_loop::EventLoop;
 use crate::param::internals::ParamPtr;
 use crate::plugin::{NoteEvent, Vst3Plugin};
-use crate::wrapper::state::State;
+use crate::wrapper::state::PluginState;
 
 /// A [`GuiContext`] implementation for the wrapper. This is passed to the plugin in
 /// [`Editor::spawn()`][crate::prelude::Editor::spawn()] so it can interact with the rest of the plugin and
@@ -89,11 +89,11 @@ impl<P: Vst3Plugin> GuiContext for WrapperGuiContext<P> {
         }
     }
 
-    fn get_state(&self) -> State {
+    fn get_state(&self) -> PluginState {
         self.inner.get_state_object()
     }
 
-    fn set_state(&self, state: State) {
+    fn set_state(&self, state: PluginState) {
         self.inner.set_state_object(state)
     }
 }

src/wrapper/vst3/inner.rs

@@ -21,7 +21,7 @@ use crate::event_loop::{EventLoop, MainThreadExecutor, OsEventLoop};
 use crate::param::internals::{ParamPtr, Params};
 use crate::param::ParamFlags;
 use crate::plugin::{BufferConfig, BusConfig, Editor, NoteEvent, ProcessStatus, Vst3Plugin};
-use crate::wrapper::state::{self, State};
+use crate::wrapper::state::{self, PluginState};
 use crate::wrapper::util::{hash_param_id, process_wrapper};
 
 /// The actual wrapper bits. We need this as an `Arc<T>` so we can safely use our event loop API.
@@ -91,9 +91,9 @@ pub(crate) struct WrapperInner<P: Vst3Plugin> {
     /// In other words, the GUI thread acts as a sender and then as a receiver, while the audio
     /// thread acts as a receiver and then as a sender. That way deallocation can happen on the GUI
     /// thread. All of this happens without any blocking on the audio thread.
-    pub updated_state_sender: channel::Sender<State>,
+    pub updated_state_sender: channel::Sender<PluginState>,
     /// The receiver belonging to [`new_state_sender`][Self::new_state_sender].
-    pub updated_state_receiver: channel::Receiver<State>,
+    pub updated_state_receiver: channel::Receiver<PluginState>,
 
     /// The keys from `param_map` in a stable order.
     pub param_hashes: Vec<u32>,
@@ -324,7 +324,7 @@ impl<P: Vst3Plugin> WrapperInner<P> {
     /// Get the plugin's state object, may be called by the plugin's GUI as part of its own preset
     /// management. The wrapper doesn't use these functions and serializes and deserializes directly
     /// the JSON in the relevant plugin API methods instead.
-    pub fn get_state_object(&self) -> State {
+    pub fn get_state_object(&self) -> PluginState {
         unsafe {
             state::serialize_object(
                 self.params.clone(),
@@ -337,7 +337,7 @@ impl<P: Vst3Plugin> WrapperInner<P> {
     /// Update the plugin's internal state, called by the plugin itself from the GUI thread. To
     /// prevent corrupting data and changing parameters during processing the actual state is only
     /// updated at the end of the audio processing cycle.
-    pub fn set_state_object(&self, mut state: State) {
+    pub fn set_state_object(&self, mut state: PluginState) {
         // Use a loop and timeouts to handle the super rare edge case when this function gets called
         // between a process call and the host disabling the plugin
         loop {