switchboard-on-demand 0.5.2

A Rust library to interact with the Switchboard Solana program.
Documentation 
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#[cfg(feature = "anchor")]
use anchor_lang::solana_program;
use anyhow::Error as AnyhowError;

use crate::sysvar::ed25519_sysvar::{Ed25519Sysvar, ParsedEd25519SignatureDataRef};

#[derive(Copy, Clone, Default, serde::Serialize, serde::Deserialize)]
pub struct Instructions;

#[cfg(feature = "anchor")]
impl anchor_lang::solana_program::sysvar::SysvarId for Instructions {
    fn id() -> solana_program::pubkey::Pubkey {
        solana_program::sysvar::instructions::id().to_bytes().into()
    }

    fn check_id(id: &solana_program::pubkey::Pubkey) -> bool {
        solana_program::sysvar::instructions::id() == id.to_bytes().into()
    }
}
#[cfg(feature = "anchor")]
impl anchor_lang::solana_program::sysvar::Sysvar for Instructions {
    // override
    fn size_of() -> usize {
        // hard-coded so that we don't have to construct an empty
        0 // golden, update if MAX_ENTRIES changes
    }
    fn from_account_info(
        _account_info: &anchor_lang::prelude::AccountInfo,
    ) -> Result<Self, solana_program::program_error::ProgramError> {
        Ok(Self {})
    }
}

impl Instructions {
    pub fn parse_ed25519_from_data(
        data: &[u8],
    ) -> Result<([ParsedEd25519SignatureDataRef<'_>; 8], u8, &[u8], u64, u8), AnyhowError> {
        Ed25519Sysvar::parse_instruction_zero_copy(data).map_err(|e| e)
    }
}