spl_token_2022/extension/
immutable_owner.rs

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#[cfg(feature = "serde-traits")]
use serde::{Deserialize, Serialize};
use {
    crate::extension::{Extension, ExtensionType},
    bytemuck::{Pod, Zeroable},
};

/// Indicates that the Account owner authority cannot be changed
#[cfg_attr(feature = "serde-traits", derive(Serialize, Deserialize))]
#[cfg_attr(feature = "serde-traits", serde(rename_all = "camelCase"))]
#[derive(Clone, Copy, Debug, Default, PartialEq, Pod, Zeroable)]
#[repr(transparent)]
pub struct ImmutableOwner;

impl Extension for ImmutableOwner {
    const TYPE: ExtensionType = ExtensionType::ImmutableOwner;
}