Enum Reason

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pub enum Reason {
    FieldValueInvalid,
    FieldValueForbidden,
    FieldValueRequired,
    FieldValueDuplicate,
}

Expand description

Reason is a machine-readable value providing more detail about why a field failed the validation.

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FieldValueInvalid

FieldValueInvalid is used to report malformed values (e.g. failed regex match, too long, out of bounds).

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FieldValueForbidden

FieldValueForbidden is used to report valid (as per formatting rules) values which would be accepted under some conditions, but which are not permitted by the current conditions (such as security policy).

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FieldValueRequired

FieldValueRequired is used to report required values that are not provided (e.g. empty strings, null values, or empty arrays).

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FieldValueDuplicate

FieldValueDuplicate is used to report collisions of values that must be unique (e.g. unique IDs).

Trait Implementations§

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impl Clone for Reason

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fn clone(&self) -> Reason

Returns a duplicate of the value. Read more

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

Performs copy-assignment from source. Read more

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impl Debug for Reason

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

Formats the value using the given formatter. Read more

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impl Default for Reason

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fn default() -> Reason

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

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impl<'de> Deserialize<'de> for Reason

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fn deserialize<D>( deserializer: D, ) -> Result<Reason, <D as Deserializer<'de>>::Error>
where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer. Read more

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impl FromStr for Reason

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type Err = Error

The associated error which can be returned from parsing.

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fn from_str(s: &str) -> Result<Reason, <Reason as FromStr>::Err>

Parses a string s to return a value of this type. Read more

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impl PartialEq for Reason

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fn eq(&self, other: &Reason) -> bool

Tests for self and other values to be equal, and is used by ==.

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fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

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impl Serialize for Reason

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fn serialize<S>( &self, serializer: S, ) -> Result<<S as Serializer>::Ok, <S as Serializer>::Error>
where S: Serializer,

Serialize this value into the given Serde serializer. Read more

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impl StructuralPartialEq for Reason

Auto Trait Implementations§

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impl UnwindSafe for Reason

Blanket Implementations§

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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> CloneToUninit for T
where T: Clone,

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unsafe fn clone_to_uninit(&self, dest: *mut u8)

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

Performs copy-assignment from self to dest. Read more

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impl<T> DynClone for T
where T: Clone,

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fn __clone_box(&self, _: Private) -> *mut ()

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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 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> IntoEither for T

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fn into_either(self, into_left: bool) -> Either<Self, Self>

Converts self into a Left variant of Either<Self, Self> if into_left is true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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fn into_either_with<F>(self, into_left: F) -> Either<Self, Self>
where F: FnOnce(&Self) -> bool,

Converts self into a Left variant of Either<Self, Self> if into_left(&self) returns true. Converts self into a Right variant of Either<Self, Self> otherwise. Read more

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