pub enum LiteralClass {
    Str,
    ByteStr,
    Byte,
    Char,
    Int,
    Float,
    Bool,
    Any,
}
Expand description

Constrains for literal value type

Variants§

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Str

Literal must be a string

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ByteStr

Literal must be a byte string

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Byte

Literal must be a byte (in form of b'f')

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Char

Literal must be a character

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Int

Literal must be an integer

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Float

Literal must be a float

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Bool

Literal must be a boolean

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Any

Literal must be a verbatim form

Implementations§

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impl LiteralClass

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pub fn check( self, lit: &Lit, attr: impl ToString, arg: impl ToString ) -> Result<(), Error>

Checks the literal against current requirements, generating Error if the requirements are not met.

Trait Implementations§

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impl Clone for LiteralClass

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fn clone(&self) -> LiteralClass

Returns a copy 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 LiteralClass

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

Formats the value using the given formatter. Read more
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impl From<&Lit> for LiteralClass

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fn from(lit: &Lit) -> Self

Converts to this type from the input type.
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impl From<Lit> for LiteralClass

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fn from(lit: Lit) -> Self

Converts to this type from the input type.
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impl From<LiteralClass> for ValueClass

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fn from(cls: LiteralClass) -> Self

Converts to this type from the input type.
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impl Hash for LiteralClass

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fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher. Read more
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fn hash_slice<H>(data: &[Self], state: &mut H)where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher. Read more
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impl Ord for LiteralClass

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fn cmp(&self, other: &LiteralClass) -> Ordering

This method returns an Ordering between self and other. Read more
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fn max(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the maximum of two values. Read more
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fn min(self, other: Self) -> Selfwhere Self: Sized,

Compares and returns the minimum of two values. Read more
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fn clamp(self, min: Self, max: Self) -> Selfwhere Self: Sized + PartialOrd<Self>,

Restrict a value to a certain interval. Read more
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impl PartialEq<LiteralClass> for LiteralClass

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

This method tests for self and other values to be equal, and is used by ==.
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fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.
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impl PartialOrd<LiteralClass> for LiteralClass

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fn partial_cmp(&self, other: &LiteralClass) -> Option<Ordering>

This method returns an ordering between self and other values if one exists. Read more
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fn lt(&self, other: &Rhs) -> bool

This method tests less than (for self and other) and is used by the < operator. Read more
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fn le(&self, other: &Rhs) -> bool

This method tests less than or equal to (for self and other) and is used by the <= operator. Read more
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fn gt(&self, other: &Rhs) -> bool

This method tests greater than (for self and other) and is used by the > operator. Read more
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fn ge(&self, other: &Rhs) -> bool

This method tests greater than or equal to (for self and other) and is used by the >= operator. Read more
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impl Copy for LiteralClass

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impl Eq for LiteralClass

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impl StructuralEq for LiteralClass

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impl StructuralPartialEq for LiteralClass

Auto Trait Implementations§

Blanket Implementations§

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impl<T> Any for Twhere 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 Twhere 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 Twhere 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, U> Into<U> for Twhere 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> ToOwned for Twhere T: Clone,

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type Owned = T

The resulting type after obtaining ownership.
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fn to_owned(&self) -> T

Creates owned data from borrowed data, usually by cloning. Read more
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fn clone_into(&self, target: &mut T)

Uses borrowed data to replace owned data, usually by cloning. Read more
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impl<T, U> TryFrom<U> for Twhere 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 Twhere 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.