Enum cranelift_wasm::WasmError

pub enum WasmError {
    InvalidWebAssembly {
        message: &'static str,
        offset: usize,
    },
    Unsupported(&'static str),
    ImplLimitExceeded,
    User(String),
}

A WebAssembly translation error.

When a WebAssembly function can't be translated, one of these error codes will be returned to describe the failure.

Variants

InvalidWebAssembly

The input WebAssembly code is invalid.

This error code is used by a WebAssembly translator when it encounters invalid WebAssembly code. This should never happen for validated WebAssembly code.

Fields of InvalidWebAssembly

message: &'static str

A string describing the validation error.

offset: usize

The bytecode offset where the error occurred.

Unsupported(&'static str)

A feature used by the WebAssembly code is not supported by the embedding environment.

Embedding environments may have their own limitations and feature restrictions.

ImplLimitExceeded

An implementation limit was exceeded.

Cranelift can compile very large and complicated functions, but the implementation has limits that cause compilation to fail when they are exceeded.

User(String)

Any user-defined error.

Trait Implementations

impl Display for WasmError

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Debug for WasmError

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl From<BinaryReaderError> for WasmError

fn from(e: BinaryReaderError) -> Self

Convert from a BinaryReaderError to a WasmError.

impl Fail for WasmError

fn name(&self) -> Option<&str>

Returns the "name" of the error.

fn cause(&self) -> Option<&dyn Fail>

Returns a reference to the underlying cause of this failure, if it is an error that wraps other errors.

fn backtrace(&self) -> Option<&Backtrace>

Returns a reference to the Backtrace carried by this failure, if it carries one.

fn context<D>(self, context: D) -> Context<D> where
    D: Display + Send + Sync + 'static, 

Provides context for this failure.

fn compat(self) -> Compat<Self>

Wraps this failure in a compatibility wrapper that implements std::error::Error.