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//! Error types and utilities. pub use anyhow::Error; use std::fmt; /// Either `Ok(T)` or `Err(failure::Error)`. pub type Result<T> = ::std::result::Result<T, anyhow::Error>; /// A leaf wasm error type. /// /// Just an enum with no further information. Extra diagnostics are attached via /// failure's `context` method. #[derive(Copy, Clone, Eq, PartialEq, Debug)] pub enum ErrorKind { /// Given invalid input wasm. InvalidWasm, } impl fmt::Display for ErrorKind { fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result { match self { ErrorKind::InvalidWasm => "The input WebAssembly is invalid".fmt(f), } } } impl std::error::Error for ErrorKind {}