Derive Macro LightProgram 

#[derive(LightProgram)]
{
    // Attributes available to this derive:
    #[light_account]
}

Derive macro for manually specifying compressed account variants on an enum.

Generates equivalent code to #[light_program] auto-discovery, but allows specifying account types and seeds explicitly. Useful for external programs where you don’t own the module.

Example

#[derive(LightProgram)]
pub enum ProgramAccounts {
    #[light_account(pda::seeds = [b"record", ctx.owner])]
    Record(MinimalRecord),

    #[light_account(pda::seeds = [RECORD_SEED, ctx.owner], pda::zero_copy)]
    ZeroCopyRecord(ZeroCopyRecord),

    #[light_account(token::seeds = [VAULT_SEED, ctx.mint], token::owner_seeds = [AUTH_SEED])]
    Vault,

    #[light_account(associated_token)]
    Ata,
}

Seed expressions use explicit prefixes:

• ctx.field - context account reference
• data.field - instruction data parameter
• b"literal" or "literal" - byte/string literal
• CONSTANT or path::CONSTANT - constant in SCREAMING_SNAKE_CASE