Function spl_token_2022::extension::alloc_and_serialize_variable_len_extension

source ·

pub fn alloc_and_serialize_variable_len_extension<S: BaseState, V: Extension + VariableLenPack>(
    account_info: &AccountInfo<'_>,
    new_extension: &V,
    overwrite: bool
) -> Result<(), ProgramError>

Expand description

Packs a variable-length extension into a TLV space

This function reallocates the account as needed to accommodate for the change in space, then reallocates in the TLV buffer, and finally writes the bytes.

NOTE: Unlike the reallocate instruction, this function will reduce the size of an account if it has too many bytes allocated for the given value.