ErrorBuilder

mpl_core::error

Struct ErrorBuilder 

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pub struct ErrorBuilder { /* private fields */ }
Expand description

Builder for constructing detailed errors with context

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impl ErrorBuilder

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pub fn new() -> Self

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pub fn with_context( self, key: impl Into<String>, value: impl Into<String>, ) -> Self

Add context to the error

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pub fn validation_error(self, message: impl Into<String>) -> MplError

Build a validation error with context

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pub fn internal_error(self, message: impl Into<String>) -> MplError

Build an internal error with context

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impl Default for ErrorBuilder

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fn default() -> Self

Returns the “default value” for a type. Read more

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impl<T> Any for T
where T: 'static + ?Sized,

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fn type_id(&self) -> TypeId

Gets the TypeId of self. Read more
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impl<T> AnyExt for T
where T: Any + ?Sized,

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fn downcast_ref<T>(this: &Self) -> Option<&T>
where T: Any,

Attempts to downcast this to T behind reference
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fn downcast_mut<T>(this: &mut Self) -> Option<&mut T>
where T: Any,

Attempts to downcast this to T behind mutable reference
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fn downcast_rc<T>(this: Rc<Self>) -> Result<Rc<T>, Rc<Self>>
where T: Any,

Attempts to downcast this to T behind Rc pointer
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fn downcast_arc<T>(this: Arc<Self>) -> Result<Arc<T>, Arc<Self>>
where T: Any,

Attempts to downcast this to T behind Arc pointer
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fn downcast_box<T>(this: Box<Self>) -> Result<Box<T>, Box<Self>>
where T: Any,

Attempts to downcast this to T behind Box pointer
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fn downcast_move<T>(this: Self) -> Option<T>
where T: Any, Self: Sized,

Attempts to downcast owned Self to T, useful only in generic context as a workaround for specialization
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impl<T> Borrow<T> for T
where T: ?Sized,

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fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more
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impl<T> BorrowMut<T> for T
where T: ?Sized,

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fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more
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impl<T, X> CoerceTo<T> for X
where T: CoerceFrom<X> + ?Sized,

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fn coerce_rc_to(self: Rc<X>) -> Rc<T>

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fn coerce_box_to(self: Box<X>) -> Box<T>

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fn coerce_ref_to(&self) -> &T

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fn coerce_mut_to(&mut self) -> &mut T

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impl<T> From<T> for T

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fn from(t: T) -> T

Returns the argument unchanged.

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impl<T> Instrument for T

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fn instrument(self, span: Span) -> Instrumented<Self>

Instruments this type with the provided Span, returning an Instrumented wrapper. Read more
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fn in_current_span(self) -> Instrumented<Self>

Instruments this type with the current Span, returning an Instrumented wrapper. Read more
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impl<T, U> Into<U> for T
where U: From<T>,

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fn into(self) -> U

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

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impl<T> PolicyExt for T
where T: ?Sized,

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fn and<P, B, E>(self, other: P) -> And<T, P>
where T: Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns Action::Follow only if self and other return Action::Follow. Read more
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fn or<P, B, E>(self, other: P) -> Or<T, P>
where T: Policy<B, E>, P: Policy<B, E>,

Create a new Policy that returns Action::Follow if either self or other returns Action::Follow. Read more
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impl<T, U> TryFrom<U> for T
where U: Into<T>,

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type Error = Infallible

The type returned in the event of a conversion error.
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.
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impl<T, U> TryInto<U> for T
where U: TryFrom<T>,

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type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.
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fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.
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impl<T> WithSubscriber for T

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fn with_subscriber<S>(self, subscriber: S) -> WithDispatch<Self>
where S: Into<Dispatch>,

Attaches the provided Subscriber to this type, returning a WithDispatch wrapper. Read more
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fn with_current_subscriber(self) -> WithDispatch<Self>

Attaches the current default Subscriber to this type, returning a WithDispatch wrapper. Read more