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solana/programs/bpf/rust/invoked/src/instruction.rs

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2020-04-28 14:33:56 -07:00
//! @brief Example Rust-based BPF program that issues a cross-program-invocation
use solana_sdk::{
instruction::{AccountMeta, Instruction},
pubkey::Pubkey,
};
pub fn create_instruction(
program_id: Pubkey,
arguments: &[(&Pubkey, bool, bool)],
data: Vec<u8>,
) -> Instruction {
let accounts = arguments
.iter()
.map(|(key, is_writable, is_signer)| {
if *is_writable {
AccountMeta::new(**key, *is_signer)
} else {
AccountMeta::new_readonly(**key, *is_signer)
}
})
.collect();
Instruction {
program_id,
accounts,
data,
}
}