Trait safe_token_2022::extension::BaseStateWithExtensions

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

    // Provided methods
    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> { ... }
}
Expand description

Trait for base state with extension

Required Methods§

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fn get_tlv_data(&self) -> &[u8] ⓘ

Get the buffer containing all extension data

Provided Methods§

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

Unpack a portion of the TLV data as the desired type

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

Iterates through the TLV entries, returning only the types

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

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

Implementors§