Enum rquickjs_core::Error

pub enum Error {
    Allocation,
    InvalidString(NulError),
    Utf8(Utf8Error),
    Io(IoError),
    Exception {
        message: StdString,
        file: StdString,
        line: i32,
        stack: StdString,
    },
    FromJs {
        from: &'static str,
        to: &'static str,
        message: Option<StdString>,
    },
    IntoJs {
        from: &'static str,
        to: &'static str,
        message: Option<StdString>,
    },
    NumArgs {
        expected: Range<usize>,
        given: usize,
    },
    Resolving {
        base: StdString,
        name: StdString,
        message: Option<StdString>,
    },
    Loading {
        name: StdString,
        message: Option<StdString>,
    },
    Unknown,
}

Error type of the library.

Variants

Allocation

Could not allocate memory This is generally only triggered when out of memory.

InvalidString(NulError)

Found a string with a internal null byte while converting to C string.

Tuple Fields of InvalidString

0: NulError

Utf8(Utf8Error)

String from rquickjs was not UTF-8

Tuple Fields of Utf8

0: Utf8Error

Io(IoError)

An io error

Tuple Fields of Io

0: IoError

Exception

An exception raised by quickjs itself.

Fields of Exception

message: StdStringfile: StdStringline: i32stack: StdString

FromJs

Error converting from javascript to a rust type.

Fields of FromJs

from: &'static strto: &'static strmessage: Option<StdString>

IntoJs

Error converting to javascript from a rust type.

Fields of IntoJs

from: &'static strto: &'static strmessage: Option<StdString>

NumArgs

Error matching of function arguments

Fields of NumArgs

expected: Range<usize>given: usize

Resolving

This is supported on crate feature loader only.

Error when resolving js module

Fields of Resolving

base: StdStringname: StdStringmessage: Option<StdString>

Loading

This is supported on crate feature loader only.

Error when loading js module

Fields of Loading

name: StdStringmessage: Option<StdString>

Unknown

An error from quickjs from which the specifics are unknown. Should eventually be removed as development progresses.

Implementations

impl Error

pub fn new_resolving<B, N>(base: B, name: N) -> Self where
    StdString: From<B> + From<N>, 

This is supported on crate feature loader only.

Create resolving error

pub fn new_resolving_message<B, N, M>(base: B, name: N, msg: M) -> Self where
    StdString: From<B> + From<N> + From<M>, 

This is supported on crate feature loader only.

Create resolving error with message

pub fn is_resolving(&self) -> bool

This is supported on crate feature loader only.

Returns whether the error is a resolving error

pub fn new_loading<N>(name: N) -> Self where
    StdString: From<N>, 

This is supported on crate feature loader only.

Create loading error

pub fn new_loading_message<N, M>(name: N, msg: M) -> Self where
    StdString: From<N> + From<M>, 

This is supported on crate feature loader only.

Create loading error

pub fn is_loading(&self) -> bool

This is supported on crate feature loader only.

Returns whether the error is a loading error

pub fn is_exception(&self) -> bool

Returns whether the error is a quickjs generated exception.

pub fn new_from_js(from: &'static str, to: &'static str) -> Self

Create from JS conversion error

pub fn new_from_js_message<M>(
    from: &'static str,
    to: &'static str,
    msg: M
) -> Self where
    StdString: From<M>, 

Create from JS conversion error with message

pub fn new_into_js(from: &'static str, to: &'static str) -> Self

Create into JS conversion error

pub fn new_into_js_message<M>(
    from: &'static str,
    to: &'static str,
    msg: M
) -> Self where
    StdString: From<M>, 

Create into JS conversion error with message

pub fn is_from_js(&self) -> bool

Returns whether the error is a from JS conversion error

pub fn is_from_js_to_js(&self) -> bool

Returns whether the error is a from JS to JS type conversion error

pub fn is_into_js(&self) -> bool

Returns whether the error is an into JS conversion error

pub fn new_num_args(expected: Range<usize>, given: usize) -> Self

Create function args mismatch error

pub fn is_num_args(&self) -> bool

Return whether the error is an function args mismatch error

Trait Implementations

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

fn fmt(&self, f: &mut Formatter<'_>) -> FmtResult

Formats the value using the given formatter.

impl Error for Error

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()

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

👎 Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

impl From<Error> for Error

fn from(error: IoError) -> Self

Performs the conversion.

impl From<FromUtf8Error> for Error

fn from(error: FromUtf8Error) -> Self

Performs the conversion.

impl From<NulError> for Error

fn from(error: NulError) -> Self

Performs the conversion.

impl From<Utf8Error> for Error

fn from(error: Utf8Error) -> Self

Performs the conversion.

impl<'js> FromJs<'js> for Error

fn from_js(ctx: Ctx<'js>, value: Value<'js>) -> Result<Self>

impl<'js> IntoJs<'js> for &Error

fn into_js(self, ctx: Ctx<'js>) -> Result<Value<'js>>