Trait spl_token_2022::extension::BaseStateWithExtensions

pub trait BaseStateWithExtensions<S: BaseState> {
    fn get_tlv_data(&self) -> &[u8] ;

    fn get_extension<V: Extension>(&self) -> Result<&V, ProgramError> { ... }
    fn get_extension_types(&self) -> Result<Vec<ExtensionType>, ProgramError> { ... }
    fn get_first_extension_type(
        &self
    ) -> Result<Option<ExtensionType>, ProgramError> { ... }
}

Trait for base state with extension

Required Methods

fn get_tlv_data(&self) -> &[u8]

Get the buffer containing all extension data

Provided Methods

fn get_extension<V: Extension>(&self) -> Result<&V, ProgramError>

Unpack a portion of the TLV data as the desired type

fn get_extension_types(&self) -> Result<Vec<ExtensionType>, ProgramError>

Iterates through the TLV entries, returning only the types

fn get_first_extension_type(
    &self
) -> Result<Option<ExtensionType>, ProgramError>

Get just the first extension type, useful to track mixed initializations

Implementors

impl<'a, S: BaseState> BaseStateWithExtensions<S> for StateWithExtensions<'a, S>

impl<'a, S: BaseState> BaseStateWithExtensions<S> for StateWithExtensionsMut<'a, S>

impl<S: BaseState> BaseStateWithExtensions<S> for StateWithExtensionsOwned<S>