Parity WASM contracts standard library for Rust
pwasm-std is a limited subset of the Rust standard library, along with a custom allocator which delegates the allocation to the runtime-defined externs.
Just add a dependency
[dependencies] pwasm-std = "0.13"
cargo test --features=test
The crate is supposed to be used on nightly Rust only, until the custom allocator api stablizes in Rust.
pwasm-std is itself compiled with no_std and expected to be used within no_std-crates/binaries, since it defines
lang_item-s on it's own, which will conflict with standard library.
But for test scenarios it can be compiled with feature "std" and auxiliary crate "pwasm-test" to support testing of contracts' internal logic.
pwasm-std is primarily distributed under the terms of both the MIT
license and the Apache License (Version 2.0), at your choice.
See LICENSE-APACHE, and LICENSE-MIT for details.
Unless you explicitly state otherwise, any contribution intentionally submitted for inclusion in pwasm-std by you, as defined in the Apache-2.0 license, shall be dual licensed as above, without any additional terms or conditions.