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// Copyright 2018-2022 Parity Technologies (UK) Ltd.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
//! The `ink_env` utilities used to interoperate with the contract executor.
//!
//! Mainly provides entities to work on a contract's storage
//! as well as high-level collections on top of those.
//! Also provides environmental utilities, such as storage allocators,
//! FFI to interface with FRAME contracts and a primitive blockchain
//! emulator for simple off-chain testing.
#![cfg_attr(not(feature = "std"), no_std)]
#![deny(
missing_docs,
bad_style,
bare_trait_objects,
const_err,
improper_ctypes,
non_shorthand_field_patterns,
no_mangle_generic_items,
overflowing_literals,
path_statements,
patterns_in_fns_without_body,
private_in_public,
unconditional_recursion,
unused_allocation,
unused_comparisons,
unused_parens,
while_true,
trivial_casts,
trivial_numeric_casts,
unused_extern_crates
)]
#[cfg(all(not(feature = "std"), target_arch = "wasm32"))]
#[allow(unused_extern_crates)]
extern crate rlibc;
#[cfg(all(not(feature = "std"), target_arch = "wasm32"))]
#[allow(unused_variables)]
#[panic_handler]
fn panic(info: &core::panic::PanicInfo) -> ! {
// This code gets removed in release builds where the macro will expand into nothing.
debug_print!("{}\n", info);
// We only use this operation if we are guaranteed to be in Wasm32 compilation.
// This is used in order to make any panic a direct abort avoiding Rust's general
// panic infrastructure.
core::arch::wasm32::unreachable();
}
// This extern crate definition is required since otherwise rustc
// is not recognizing its allocator and panic handler definitions.
#[cfg(not(feature = "std"))]
extern crate ink_allocator;
mod api;
mod arithmetic;
mod backend;
pub mod call;
pub mod chain_extension;
mod engine;
mod error;
pub mod hash;
#[doc(hidden)]
pub mod topics;
mod types;
#[cfg(test)]
mod tests;
#[cfg(any(feature = "std", test, doc))]
#[doc(inline)]
pub use self::engine::off_chain::test_api as test;
use self::backend::{
EnvBackend,
TypedEnvBackend,
};
pub use self::{
api::*,
backend::{
CallFlags,
ReturnFlags,
},
error::{
Error,
Result,
},
topics::Topics,
types::{
AccountId,
Clear,
DefaultEnvironment,
Environment,
FromLittleEndian,
Hash,
NoChainExtension,
},
};
cfg_if::cfg_if! {
if #[cfg(any(feature = "ink-debug", feature = "std"))] {
/// Required by the `debug_print*` macros below, because there is no guarantee that
/// contracts will have a direct `ink_prelude` dependency. In the future we could introduce
/// an "umbrella" crate containing all the `ink!` crates which could also host these macros.
#[doc(hidden)]
pub use ink_prelude::format;
/// Appends a formatted string to the `debug_message` buffer if message recording is
/// enabled in the contracts pallet and if the call is performed via RPC (**not** via an
/// extrinsic). The `debug_message` buffer will be:
/// - Returned to the RPC caller.
/// - Logged as a `debug!` message on the Substrate node, which will be printed to the
/// node console's `stdout` when the log level is set to `-lruntime::contracts=debug`.
///
/// # Note
///
/// This depends on the `seal_debug_message` interface which requires the
/// `"pallet-contracts/unstable-interface"` feature to be enabled in the target runtime.
#[macro_export]
macro_rules! debug_print {
($($arg:tt)*) => ($crate::debug_message(&$crate::format!($($arg)*)));
}
/// Appends a formatted string to the `debug_message` buffer, as per [`debug_print`] but
/// with a newline appended.
///
/// # Note
///
/// This depends on the `seal_debug_message` interface which requires the
/// `"pallet-contracts/unstable-interface"` feature to be enabled in the target runtime.
#[macro_export]
macro_rules! debug_println {
() => ($crate::debug_print!("\n"));
($($arg:tt)*) => (
$crate::debug_print!("{}\n", $crate::format!($($arg)*));
)
}
} else {
#[macro_export]
/// Debug messages disabled. Enable the `ink-debug` feature for contract debugging.
macro_rules! debug_print {
($($arg:tt)*) => ();
}
#[macro_export]
/// Debug messages disabled. Enable the `ink-debug` feature for contract debugging.
macro_rules! debug_println {
() => ();
($($arg:tt)*) => ();
}
}
}