Struct Error

pub struct Error { /* private fields */ }

Error reference class

Implementations

impl Error

pub fn new(kind: ErrorKind<'_>, message: &str, traceback: &str) -> Self

pub fn new_with_cause_and_extra_context( kind: ErrorKind<'_>, message: &str, traceback: &str, cause_chain: Option<&Error>, extra_context: Option<&ObjectRef>, ) -> Self

Create an error retaining its cause and any application-specific context.

pub fn from_raised() -> Self

Create a new error by moving from raised error

Returns

The error from the raised error

pub fn set_raised(error: &Self)

Set the error as raised

Arguments

• error - The error to set as raised

pub fn kind(&self) -> ErrorKind<'_>

Get the kind of the error

Returns

The kind of the error

pub fn message(&self) -> &str

Get the message of the error

Returns

The message of the error

pub fn backtrace(&self) -> &str

Get the backtrace of the error

Returns

The backtrace of the error

pub fn cause_chain(&self) -> Option<Error>

Return the cause, if one was attached to this error.

pub fn extra_context(&self) -> Option<ObjectRef>

Return the application-specific context, if present.

pub fn traceback_most_recent_call_last(&self) -> String

Get the traceback of the error in the order of most recent call last

Returns

The traceback of the error

pub fn with_appended_backtrace(this: Self, backtrace: &str) -> Self

Append the backtrace to the error

Arguments

• this - The error to append the backtrace to
• backtrace - The backtrace to append

Returns

The error with the appended backtrace

Trait Implementations

impl AnyCompatible for Error

unsafe fn is_undefined(field: *const Self) -> bool

Whether field, which holds a value of this type or all-zero bytes, holds all-zero bytes that are no value of this type, as a null object reference, a string of type index None or a zero device type: a field that a creator left undefined for reflection to set, as C++ UnsafeInit leaves a reference undefined (null). Unlike a C++ undefined reference, it is no value; a nullable reference is Option<T>, whose None is a defined value.

fn type_str() -> String

the type string of the type

unsafe fn copy_to_any_view(src: &Self, data: &mut TVMFFIAny)

the value to copy to TVMFFIAny

unsafe fn check_any_strict(data: &TVMFFIAny) -> bool

unsafe fn copy_from_any_view_after_check(data: &TVMFFIAny) -> Self

Copy value from TVMFFIAny after checking caller must ensure that the value is compatible with the type

unsafe fn move_to_any(src: Self, data: &mut TVMFFIAny)

consume the value to move to Any

unsafe fn move_from_any_after_check(data: &mut TVMFFIAny) -> Self

the value to move from TVMFFIAny NOTE: pay very careful attention to avoid memory leak!

unsafe fn try_cast_from_any_view(data: &TVMFFIAny) -> Result<Self, ()>

try to cast the value from AnyView

fn get_mismatch_type_info(data: &TVMFFIAny) -> String

Get the type key of a type when TryCastFromAnyView fails.

fn type_schema() -> String

The type schema of the type: the JSON object C++ TypeTraits<T>::TypeSchema writes, which the type schemas of functions and fields embed.

fn to_any(&self) -> Any

Borrow self into an owned Any, increfing object-backed values.

impl<'a> ArgIntoRef for &'a Error

type Target = Error

fn to_ref(&self) -> &Self::Target

impl ArgIntoRef for Error

type Target = Error

fn to_ref(&self) -> &Self::Target

impl Clone for Error

fn clone(&self) -> Error

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

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<'_>) -> Result

Formats the value using the given formatter.

impl Error for Error

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

Returns the lower-level source of this error, if any.

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

fn provide<'a>(&'a self, request: &mut Request<'a>)

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

Provides type-based access to context intended for error reports.

impl From<&Error> for Error

fn from(value: &Error) -> Self

Converts to this type from the input type.

impl<'a> IntoArgHolder for &'a Error

type Target = &'a Error

fn into_arg_holder(self) -> Self::Target

impl IntoArgHolder for Error

type Target = Error

fn into_arg_holder(self) -> Self::Target

impl ObjectRefCore for Error

type ContainerType = <ObjectArc<ErrorObj> as Deref>::Target

fn data(this: &Self) -> &ObjectArc<Self::ContainerType>

fn into_data(this: Self) -> ObjectArc<Self::ContainerType>

unsafe fn from_data(data: ObjectArc<Self::ContainerType>) -> Self

Construct a reference view from an owning container handle.

fn same_as<Other: ObjectRefCore>(&self, other: &Other) -> bool

Return whether two object references point to the same allocation.

fn downcast_ref<T: ObjectCore>(&self) -> Option<&T>

Borrow the underlying object as T when its runtime type is T or a subtype.

impl TryFrom<Any> for Error

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: Any) -> Result<Self, Self::Error>

Performs the conversion.

impl<'a> TryFrom<AnyView<'a>> for Error

type Error = Error

The type returned in the event of a conversion error.

fn try_from(value: AnyView<'a>) -> Result<Self, Self::Error>

Performs the conversion.