#![no_std]
extern crate alloc;
pub use alloc::boxed::Box;
pub use alloc::vec::Vec;
pub use alloc::string::String;
pub use elrond_codec;
mod types;
pub mod io;
mod proxy;
pub mod storage;
pub mod err_msg;
pub mod call_data;
pub mod non_zero_util;
pub use types::*;
pub use io::*;
pub use storage::{storage_get, storage_set, BorrowedMutStorage};
pub use finish::SCResult;
pub use call_data::*;
pub use proxy::OtherContractHandle;
use core::ops::{Add, Sub, Mul, Div, Rem, Neg};
use core::ops::{AddAssign, SubAssign, MulAssign, DivAssign, RemAssign};
use core::ops::{BitAnd, BitOr, BitXor, Shr, Shl};
use core::ops::{BitAndAssign, BitOrAssign, BitXorAssign, ShrAssign, ShlAssign};
pub trait ContractHookApi<BigInt, BigUint>: Sized
where
BigInt: elrond_codec::Encode + 'static,
BigUint: elrond_codec::Encode + 'static,
{
fn get_sc_address(&self) -> Address;
fn get_owner_address(&self) -> Address;
fn get_caller(&self) -> Address;
fn get_balance(&self, address: &Address) -> BigUint;
fn get_sc_balance(&self) -> BigUint {
self.get_balance(&self.get_sc_address())
}
fn storage_store(&self, key: &[u8], value: &[u8]);
fn storage_load(&self, key: &[u8]) -> Vec<u8>;
fn storage_load_len(&self, key: &[u8]) -> usize;
fn storage_store_bytes32(&self, key: &[u8], value: &[u8; 32]);
fn storage_load_bytes32(&self, key: &[u8]) -> [u8; 32];
fn storage_store_big_uint(&self, key: &[u8], value: &BigUint);
fn storage_load_big_uint(&self, key: &[u8]) -> BigUint;
fn storage_store_big_int(&self, key: &[u8], value: &BigInt);
fn storage_load_big_int(&self, key: &[u8]) -> BigInt;
fn storage_store_i64(&self, key: &[u8], value: i64);
fn storage_load_i64(&self, key: &[u8]) -> Option<i64>;
#[inline]
fn storage_load_cumulated_validator_reward(&self) -> BigUint {
self.storage_load_big_uint(storage::protected_keys::ELROND_REWARD_KEY)
}
fn get_call_value_big_uint(&self) -> BigUint;
fn send_tx(&self, to: &Address, amount: &BigUint, message: &str);
fn async_call(&self, to: &Address, amount: &BigUint, data: &[u8]);
fn get_tx_hash(&self) -> H256;
fn get_gas_left(&self) -> i64;
fn get_block_timestamp(&self) -> u64;
fn get_block_nonce(&self) -> u64;
fn get_block_round(&self) -> u64;
fn get_block_epoch(&self) -> u64;
fn sha256(&self, data: &[u8]) -> [u8; 32];
fn keccak256(&self, data: &[u8]) -> [u8; 32];
}
macro_rules! get_argument_signed_cast {
($method_name:ident, $type:ty) => {
fn $method_name (&self, arg_id: i32) -> $type {
let arg_i64 = self.get_argument_i64(arg_id);
let min = <$type>::MIN as i64;
let max = <$type>::MAX as i64;
if arg_i64 < min || arg_i64 > max {
self.signal_error(err_msg::ARG_OUT_OF_RANGE)
}
arg_i64 as $type
}
};
}
macro_rules! get_argument_unsigned_cast {
($method_name:ident, $type:ty) => {
fn $method_name (&self, arg_id: i32) -> $type {
let arg_i64 = self.get_argument_u64(arg_id);
let min = <$type>::MIN as u64;
let max = <$type>::MAX as u64;
if arg_i64 < min || arg_i64 > max {
self.signal_error(err_msg::ARG_OUT_OF_RANGE)
}
arg_i64 as $type
}
};
}
pub trait ContractIOApi<BigInt, BigUint> {
fn get_num_arguments(&self) -> i32;
fn check_num_arguments(&self, expected: i32) -> bool {
let nr_args = self.get_num_arguments();
if nr_args != expected {
self.signal_error(err_msg::ARG_WRONG_NUMBER);
}
true
}
fn check_not_payable(&self);
fn get_argument_len(&self, arg_index: i32) -> usize;
fn copy_argument_to_slice(&self, arg_index: i32, slice: &mut [u8]);
fn get_argument_vec(&self, arg_index: i32) -> Vec<u8>;
fn get_argument_bytes32(&self, arg_index: i32) -> [u8; 32];
fn get_argument_address(&self, arg_index: i32) -> Address {
self.get_argument_bytes32(arg_index).into()
}
fn get_argument_big_int(&self, arg_id: i32) -> BigInt;
fn get_argument_big_uint(&self, arg_id: i32) -> BigUint;
fn get_argument_i64(&self, arg_id: i32) -> i64;
get_argument_signed_cast!{get_argument_i32, i32}
get_argument_signed_cast!{get_argument_isize, isize}
get_argument_signed_cast!{get_argument_i8, i8}
fn get_argument_u64(&self, arg_id: i32) -> u64 {
let bytes = self.get_argument_vec(arg_id);
if bytes.len() > 8 {
self.signal_error(err_msg::ARG_OUT_OF_RANGE);
}
elrond_codec::bytes_to_number(bytes.as_slice(), false)
}
get_argument_unsigned_cast!{get_argument_u32, u32}
get_argument_unsigned_cast!{get_argument_usize, usize}
get_argument_unsigned_cast!{get_argument_u8, u8}
fn get_argument_bool (&self, arg_id: i32) -> bool {
let arg_i64 = self.get_argument_i64(arg_id);
match arg_i64 {
1 => true,
0 => false,
_ => self.signal_error(err_msg::ARG_WRONG_NUMBER)
}
}
fn finish_slice_u8(&self, slice: &[u8]);
fn finish_bytes32(&self, bytes: &[u8; 32]);
fn finish_big_int(&self, b: &BigInt);
fn finish_big_uint(&self, b: &BigUint);
fn finish_i64(&self, value: i64);
fn signal_error(&self, message: &[u8]) -> !;
fn write_log(&self, topics: &[[u8;32]], data: &[u8]);
}
pub trait BigUintApi:
Sized +
From<u64> +
From<u32> +
From<usize> +
Clone +
Add<Output=Self> +
AddAssign +
Sub<Output=Self> +
SubAssign +
Mul<Output=Self> +
MulAssign +
Div<Output=Self> +
DivAssign +
Rem<Output=Self> +
RemAssign +
BitAnd<Output=Self> +
BitAndAssign +
BitOr<Output=Self> +
BitOrAssign +
BitXor<Output=Self> +
BitXorAssign +
Shr<usize, Output=Self> +
ShrAssign<usize> +
Shl<usize, Output=Self> +
ShlAssign<usize> +
PartialEq<Self> +
Eq +
PartialOrd<Self> +
Ord +
PartialEq<u64> +
PartialOrd<u64> +
elrond_codec::Encode +
elrond_codec::Decode +
{
fn zero() -> Self {
0u64.into()
}
fn byte_length(&self) -> i32;
fn copy_to_slice_big_endian(&self, slice: &mut [u8]) -> i32;
fn copy_to_array_big_endian_pad_right(&self, target: &mut [u8; 32]);
fn to_bytes_be(&self) -> Vec<u8>;
fn to_bytes_be_pad_right(&self, nr_bytes: usize) -> Option<Vec<u8>>;
fn from_bytes_be(bytes: &[u8]) -> Self;
}
pub enum Sign {
Minus,
NoSign,
Plus,
}
pub trait BigIntApi<BigUint>:
Sized +
From<BigUint> +
From<i64> +
From<i32> +
Clone +
Add<Output=Self> +
AddAssign +
Sub<Output=Self> +
SubAssign +
Mul<Output=Self> +
MulAssign +
Div<Output=Self> +
DivAssign +
Rem<Output=Self> +
RemAssign +
Neg +
PartialEq<Self> +
Eq +
PartialOrd<Self> +
Ord +
PartialEq<i64> +
PartialOrd<i64> +
elrond_codec::Encode +
elrond_codec::Decode +
{
fn zero() -> Self {
0i64.into()
}
fn abs_uint(&self) -> BigUint;
fn sign(&self) -> Sign;
fn to_signed_bytes_be(&self) -> Vec<u8>;
fn from_signed_bytes_be(bytes: &[u8]) -> Self;
}
pub trait CallableContract {
fn call(&self, fn_name: &'static str);
fn clone_contract(&self) -> Box<dyn CallableContract>;
}
#[macro_export]
macro_rules! contract_proxy {
($s:expr, $address:expr, $proxy_trait:ident) => {
$s.contract_proxy($address) as Box<dyn $proxy_trait<BigInt, BigUint>>
};
}
#[macro_export]
macro_rules! imports {
() => {
use elrond_wasm::{Box, Vec, String, Queue, VarArgs, BorrowedMutStorage};
use elrond_wasm::{SCError, SCResult, SCResult::Ok, SCResult::Err};
use elrond_wasm::{H256, Address, ErrorMessage};
use elrond_wasm::{ContractHookApi, ContractIOApi, BigIntApi, BigUintApi, OtherContractHandle, AsyncCallResult, AsyncCallError};
use elrond_wasm::elrond_codec::{Encode, Decode, DecodeError};
use elrond_wasm::io::*;
use elrond_wasm::non_zero_util::*;
use elrond_wasm::err_msg;
use core::ops::{Add, Sub, Mul, Div, Rem};
use core::ops::{AddAssign, SubAssign, MulAssign, DivAssign, RemAssign};
use core::ops::{BitAnd, BitOr, BitXor, Shr, Shl};
use core::ops::{BitAndAssign, BitOrAssign, BitXorAssign, ShrAssign, ShlAssign};
};
}
#[macro_export]
macro_rules! sc_error {
($s:expr) => {
elrond_wasm::SCResult::Err(elrond_wasm::SCError::Static($s.as_bytes()))
}
}
#[macro_export]
macro_rules! sc_try {
($s:expr) => {
match $s {
elrond_wasm::SCResult::Ok(t) => t,
elrond_wasm::SCResult::Err(e) => { return elrond_wasm::SCResult::Err(e); }
}
}
}
#[macro_export]
macro_rules! require {
($expression:expr, $error_msg:expr) => {
if (!($expression)) {
return sc_error!($error_msg)
}
};
}
#[macro_export]
macro_rules! only_owner {
($trait_self: expr, $error_msg:expr) => {
if ($trait_self.get_caller() != $trait_self.get_owner_address()) {
return sc_error!($error_msg)
}
};
}
#[macro_export]
macro_rules! mut_storage (
($t:ty) => (
BorrowedMutStorage<'_, T, BigInt, BigUint, $t>
)
);
#[macro_export]
macro_rules! non_zero_usize {
($input: expr, $error_msg:expr) => {
if let Some(nz) = NonZeroUsize::new($input) {
nz
} else {
return sc_error!($error_msg)
}
};
}