Trait ExtensionState 

pub trait ExtensionState:
    Sized
    + Serialize
    + for<'de> Deserialize<'de> {
    const EXTENSION_NAME: &'static str;
    const VERSION: &'static str;

    // Provided methods
    fn from_value(value: &Value) -> Result<Self> { ... }
    fn to_value(&self) -> Result<Value> { ... }
    fn from_extension_data(extension_data: &ExtensionData) -> Option<Self> { ... }
    fn to_extension_data(
        &self,
        extension_data: &mut ExtensionData,
    ) -> Result<()> { ... }
}

Helper trait for extension-specific state management

Required Associated Constants

const EXTENSION_NAME: &'static str

The name of the extension

const VERSION: &'static str

The version of the extension state format

Provided Methods

fn from_value(value: &Value) -> Result<Self>

Convert from JSON value

fn to_value(&self) -> Result<Value>

Convert to JSON value

fn from_extension_data(extension_data: &ExtensionData) -> Option<Self>

Get state from extension data

fn to_extension_data(&self, extension_data: &mut ExtensionData) -> Result<()>

Save state to extension data

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementors

impl ExtensionState for EnabledExtensionsState

const EXTENSION_NAME: &'static str = "enabled_extensions"

const VERSION: &'static str = "v0"

impl ExtensionState for TodoState

const EXTENSION_NAME: &'static str = "todo"

const VERSION: &'static str = "v0"