Enum wasi_common::WasiCtxBuilderError

pub enum WasiCtxBuilderError {
    Io(Error),
    InvalidUtf8(FromUtf8Error),
    InvalidUtf16(FromUtf16Error),
    UnexpectedNul(NulError),
    VirtualDirEntryRootNotADirectory(PathBuf),
    TooManyFilesOpen,
}

Possible errors when WasiCtxBuilder fails building WasiCtx.

Variants

Io(Error)

General I/O error was encountered.

InvalidUtf8(FromUtf8Error)

Provided sequence of bytes was not a valid UTF-8.

InvalidUtf16(FromUtf16Error)

Provided sequence of bytes was not a valid UTF-16.

This error is expected to only occur on Windows hosts.

UnexpectedNul(NulError)

Provided sequence of bytes contained an unexpected NUL byte.

VirtualDirEntryRootNotADirectory(PathBuf)

The root of a VirtualDirEntry tree must be a VirtualDirEntry::Directory.

TooManyFilesOpen

WasiCtx has too many opened files.

Trait Implementations

impl Debug for WasiCtxBuilderError

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

Formats the value using the given formatter.

impl Display for WasiCtxBuilderError

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

Formats the value using the given formatter.

impl Error for WasiCtxBuilderError

fn source(&self) -> Option<&(dyn Error + 'static)>

The lower-level source of this error, if any.

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

🔬 This is a nightly-only experimental API. (backtrace)

Returns a stack backtrace, if available, of where this error occurred.

fn description(&self) -> &str

👎 Deprecated since 1.42.0:

use the Display impl or to_string()

if let Err(e) = "xc".parse::<u32>() { // Print e itself, no need for description(). eprintln!("Error: {}", e); }

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

👎 Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

impl From<Error> for WasiCtxBuilderError

fn from(source: Error) -> Self

Performs the conversion.

impl From<FromUtf16Error> for WasiCtxBuilderError

fn from(source: FromUtf16Error) -> Self

Performs the conversion.

impl From<FromUtf8Error> for WasiCtxBuilderError

fn from(source: FromUtf8Error) -> Self

Performs the conversion.

impl From<NulError> for WasiCtxBuilderError

fn from(source: NulError) -> Self

Performs the conversion.