spin_locked_app

Trait MetadataExt

Source 
pub trait MetadataExt {
    // Required method
    fn get_value(&self, key: &str) -> Option<&Value>;

    // Provided methods
    fn get_typed<'a, T: Deserialize<'a>>(
        &'a self,
        key: MetadataKey<T>,
    ) -> Result<Option<T>> { ... }
    fn require_typed<'a, T: Deserialize<'a>>(
        &'a self,
        key: MetadataKey<T>,
    ) -> Result<T> { ... }
}
Expand description

Helper functions for reading LockedApp metadata

Required Methods§

Source

fn get_value(&self, key: &str) -> Option<&Value>

Get a value from a metadata map

Provided Methods§

Source

fn get_typed<'a, T: Deserialize<'a>>( &'a self, key: MetadataKey<T>, ) -> Result<Option<T>>

Get a typed value from a metadata map

Source

fn require_typed<'a, T: Deserialize<'a>>( &'a self, key: MetadataKey<T>, ) -> Result<T>

Get a required value from a metadata map, returning an error if it is not present

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§