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Error

Struct Error 

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pub struct Error {
    pub message: String,
    pub content: Vec<String>,
}
Expand description

§Error

This is the error struct used in all the lib it implements some based functionality to show the error in a beautifull format.

There are to basic ways to create a new error, with a preset and additional information, or a custom, for your own error.

§Example 1

use grp_core::{ErrorType, Error};
 
Error::new(
    ErrorType::ResponseParsing,
    vec!["description", "{}"]
);

Error contains a vector to emulate various parameter to allow a more usefull message to the user. In this case, the ErrorType::ResponseParsing needs at least 2 parameters, one for the description of the error, and other for the text that generates the error.

§Example 2

use grp_core::{ErrorType, Error};
 
Error::new_custom(
    "Custom error message",
    vec!["something whent wrong after...", "don't be afraid"] // here, every item is trated as a new line (if printed)
);

You also can create custom errors using the build in method new_custom this is usefull if you whant to canvert between error in your aplication, a good example is present in https://github.com/feraxhp/grp, where the errors from git2 are parsed to grp_core errors, in order to keep the same error throughout all the aplication.

§Example 3

use grp_core::{ErrorType, Error};
 
let normal_error = Error::new(
    ErrorType::ResponseParsing,
    vec!["description", "{}"]
);
 
let error_custom = Error::new_custom(
    "Custom error message",
    vec!["something whent wrong after...", "don't be afraid"] // here, every item is trated as a new line (if printed)
);
 
let collection_error = Error::colection(vec![normal_error, error_custom]);

There is a 3 type and is a collection, this allows to return multiple errors in just one grp_core::Error. usefull for paggination errors, or concations of multiple of them.

Fields§

§message: String§content: Vec<String>

Implementations§

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impl Error

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pub fn new<T: Into<String>>(error: ErrorType, content: Vec<T>) -> Error

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pub fn colection(errors: Vec<Error>) -> Error

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pub fn new_custom<T: Into<String>>(message: T, content: Vec<T>) -> Error

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pub fn show(&self)

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pub fn show_with_offset(&self, offset: usize)

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impl Error

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pub fn from_serde(text: &String) -> impl Fn(JsonError) -> Error

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impl Debug for Error

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

Formats the value using the given formatter. Read more

Auto Trait Implementations§

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impl Freeze for Error

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impl RefUnwindSafe for Error

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impl Send for Error

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impl Sync for Error

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impl Unpin for Error

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impl UnwindSafe for Error

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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> 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> 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