cranelift

rust jit wasm webassembly runtime wasi cranelift sandbox wasmtime

Josh Triplett 56ce6e9c9f Migrate from failure to thiserror and anyhow (#436 ) * Migrate from failure to thiserror and anyhow The failure crate invents its own traits that don't use std::error::Error (because failure predates certain features added to Error); this prevents using ? on an error from failure in a function using Error. The thiserror and anyhow crates integrate with the standard Error trait instead. This change does not attempt to semantically change or refactor the approach to error-handling in any portion of the code, to ensure that the change remains straightforward to review. Modules using specific differentiated error types move from failure_derive and derive(Fail) to thiserror and derive(Error). Modules boxing all errors opaquely move from failure::Error to anyhow. Modules using String as an error type continue to do so. Code using unwrap or expect continues to do so. Drop Display implementations when thiserror can easily derive an identical instance. Drop manual traversal of iter_causes; anyhow's Debug instance prints the chain of causes by default. Use anyhow's type alias anyhow::Result<T> in place of std::result::Result<T, anyhow::Error> whenever possible. * wasm2obj: Simplify error handling using existing messages handle_module in wasm2obj manually maps cranelift_codegen::isa::LookupError values to strings, but LookupError values already have strings that say almost exactly the same thing. Rely on the strings from cranelift. * wasmtime: Rely on question-mark-in-main The main() wrapper around rmain() completely matches the behavior of question-mark-in-main (print error to stderr and return 1), so switch to question-mark-in-main. * Update to walrus 0.13 and wasm-webidl-bindings 0.6 Both crates switched from failure to anyhow; updating lets us avoid a translation from failure to anyhow within wasmtime-interface-types.		5 years ago
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js-polyfill	Recognize "wasi_unstable_preview0" in addition to "wasi_unstable".	5 years ago
sandboxed-system-primitives	Update wasmtime-wasi-c to cloudabi-utils 223dadc5.	5 years ago
src	wasmtime-wasi-c: allow(non_snake_case) to suppress warnings on consecutive underscores (#461)	5 years ago
Cargo.toml	Migrate from failure to thiserror and anyhow (#436)	5 years ago
LICENSE	Provide the C WASI implementation as an option.	6 years ago
README.md	Provide the C WASI implementation as an option.	6 years ago
build.rs	Provide the C WASI implementation as an option.	6 years ago

README.md

This is the wasmtime-wasi-c crate, which implements the WebAssembly System Interface (WASI) API in C.

WASI is greatly inspired by and directly derived from CloudABI. It differs in that it has aspirations to expand to a greater scope, and to better support the needs of WebAssembly engines.