pub enum DataType {
Show 13 variants Any, Text, Integer, Float, Boolean, Date, Time, DateTime, Undefined, Null, Variant(Vec<DataType>), Optional(Box<DataType>), Varargs(Box<DataType>),
}
Expand description

Represent the data types for values to be used in type checker

Variants§

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Any

Represent general type so can be equal to any other type

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Text

Represent String Type

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Integer

Represent Integer 64 bit type

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Float

Represent Float 64 bit type

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Boolean

Represent Boolean (true | false) type

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Date

Represent Date type

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Time

Represent Time type

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DateTime

Represent Date with Time type

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Undefined

Represent Undefined value

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Null

Represent NULL value

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Variant(Vec<DataType>)

Represent a set of valid variant of types

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Optional(Box<DataType>)

Represent an optional type so it can passed or not, must be last parameter

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Varargs(Box<DataType>)

Represent variable arguments so can pass 0 or more value with spastic type, must be last parameter

Implementations§

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impl DataType

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pub fn is_any(&self) -> bool

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pub fn is_bool(&self) -> bool

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pub fn is_int(&self) -> bool

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pub fn is_float(&self) -> bool

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pub fn is_number(&self) -> bool

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pub fn is_text(&self) -> bool

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pub fn is_time(&self) -> bool

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pub fn is_date(&self) -> bool

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pub fn is_datetime(&self) -> bool

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pub fn is_null(&self) -> bool

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pub fn is_undefined(&self) -> bool

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pub fn is_variant(&self) -> bool

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pub fn is_optional(&self) -> bool

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pub fn is_varargs(&self) -> bool

Trait Implementations§

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impl Clone for DataType

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fn clone(&self) -> DataType

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 Display for DataType

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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 PartialEq for DataType

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fn eq(&self, other: &Self) -> 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.

Auto Trait Implementations§

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> 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 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> ToOwned for T
where 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> ToString for T
where T: Display + ?Sized,

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default fn to_string(&self) -> String

Converts the given value to a String. 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.