4f0e2b70b5
Now it no longer needs to do any unsound type punning. The internal parameter that the wrapper has access to has been completely type erased, and only the outer parameter knows about enum T. This also gets rid of strum and replaces it with a custom trait.
30 lines
1.2 KiB
Rust
30 lines
1.2 KiB
Rust
//! Utilities for saving a [crate::plugin::Plugin]'s state.
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use serde::{Deserialize, Serialize};
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use std::collections::HashMap;
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/// A plain, unnormalized value for a parameter.
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#[derive(Debug, Serialize, Deserialize)]
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#[serde(rename_all = "snake_case")]
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pub(crate) enum ParamValue {
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F32(f32),
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I32(i32),
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Bool(bool),
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}
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/// A plugin's state so it can be restored at a later point.
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#[derive(Debug, Serialize, Deserialize)]
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pub(crate) struct State {
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/// The plugin's parameter values. These are stored unnormalized. This mean sthe old values will
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/// be recalled when when the parameter's range gets increased. Doing so may still mess with
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/// parmaeter automation though, depending on how the host impelments that.
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pub params: HashMap<String, ParamValue>,
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/// Arbitrary fields that should be persisted together with the plugin's parameters. Any field
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/// on the [crate::param::internals::Params] struct that's annotated with `#[persist =
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/// "stable_name"]` will be persisted this way.
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///
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/// The individual fields are also serialized as JSON so they can safely be restored
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/// independently of the other fields.
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pub fields: HashMap<String, String>,
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}
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