2b149f5bdf | ||
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benches | ||
derive | ||
fuzz | ||
hfuzz | ||
tests | ||
wasmi | ||
.editorconfig | ||
.gitignore | ||
.gitmodules | ||
.travis.yml | ||
Cargo.toml | ||
LICENSE-APACHE | ||
LICENSE-MIT | ||
README.md | ||
check.sh | ||
doc.sh | ||
test.sh |
README.md
wasmi
WASM interpreter (previously lived in parity-wasm)
Primary purpose of wasmi
is to be used with parity (ethereum-like contracts in wasm) and with Polkadot. However, wasmi
is designed to be as flexible as possible and might be suited well for other purposes.
At the moment, the API is rather low-level (especially, in the part related to host functions). But some high-level API is on the roadmap.
License
wasmi
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.
Build & Test
As wasmi
contains a git submodule, you need to use --recursive
for cloning or to checkout the submodule explicitly, otherwise the testing would fail.
git clone https://github.com/paritytech/wasmi.git --recursive
cd wasmi
cargo build
cargo test
no_std
support
This crate supports no_std
environments.
Enable the core
feature and disable default features:
[dependencies]
parity-wasm = {
version = "0.31",
default-features = false,
features = "core"
}
The core
feature requires the core
and alloc
libraries and a nightly compiler.
Also, code related to std::error
is disabled.
Floating point operations in no_std
use libm
, which sometimes panics in debug mode (https://github.com/japaric/libm/issues/4).
So make sure to either use release builds or avoid WASM with floating point operations, for example by using deny_floating_point
.
Contribution
Unless you explicitly state otherwise, any contribution intentionally submitted
for inclusion in wasmi
by you, as defined in the Apache-2.0 license, shall be
dual licensed as above, without any additional terms or conditions.