72 lines
2.1 KiB
Rust
72 lines
2.1 KiB
Rust
use crate::account::KeyedAccount;
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use crate::pubkey::Pubkey;
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use std;
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/// Reasons a program might have rejected an instruction.
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#[derive(Debug, PartialEq, Eq, Clone)]
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pub enum ProgramError {
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/// The program instruction returned an error
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GenericError,
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/// The arguments provided to a program instruction where invalid
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InvalidArgument,
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/// An instruction resulted in an account with a negative balance
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/// The difference from InsufficientFundsForFee is that the transaction was executed by the
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/// contract
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ResultWithNegativeTokens,
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/// Program's instruction token balance does not equal the balance after the instruction
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UnbalancedInstruction,
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/// Program modified an account's program id
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ModifiedProgramId,
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/// Program spent the tokens of an account that doesn't belong to it
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ExternalAccountTokenSpend,
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/// An account's userdata contents was invalid
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InvalidUserdata,
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/// An account's userdata was too small
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UserdataTooSmall,
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/// SystemInstruction::Assign was attempted on an account unowned by the system program
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AssignOfUnownedAccount,
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}
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impl std::fmt::Display for ProgramError {
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fn fmt(&self, f: &mut std::fmt::Formatter) -> std::fmt::Result {
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write!(f, "error")
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}
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}
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impl std::error::Error for ProgramError {}
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// All native programs export a symbol named process()
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pub const ENTRYPOINT: &str = "process";
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// Native program ENTRYPOINT prototype
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pub type Entrypoint = unsafe extern "C" fn(
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program_id: &Pubkey,
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keyed_accounts: &mut [KeyedAccount],
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data: &[u8],
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tick_height: u64,
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) -> Result<(), ProgramError>;
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// Convenience macro to define the native program entrypoint. Supply a fn to this macro that
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// conforms to the `Entrypoint` type signature.
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#[macro_export]
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macro_rules! solana_entrypoint(
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($entrypoint:ident) => (
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#[no_mangle]
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pub extern "C" fn process(
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program_id: &Pubkey,
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keyed_accounts: &mut [KeyedAccount],
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data: &[u8],
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tick_height: u64
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) -> Result<(), ProgramError> {
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$entrypoint(program_id, keyed_accounts, data, tick_height)
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}
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)
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);
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