FieldType

Enum FieldType 

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pub enum FieldType {
    U64,
    I64,
    F64,
    String,
    Bool,
    Null,
    Array(Box<FieldType>),
    Any,
}
Expand description

Field types supported in schema encoding

Each field in the schema has a declared type. These types map to JSON types and are encoded with 4-bit type tags in the binary format.

§Type Mapping

  • U64 - JSON numbers (positive integers)
  • I64 - JSON numbers (negative integers)
  • F64 - JSON numbers (floats)
  • String - JSON strings
  • Bool - JSON booleans
  • Null - JSON null
  • Array(T) - JSON arrays (homogeneous element type)
  • Any - Mixed-type values (reserved for future use)

Variants§

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U64

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I64

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F64

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String

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Bool

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Null

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Array(Box<FieldType>)

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Any

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impl FieldType

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pub fn type_tag(&self) -> u8

Get the 4-bit type tag for binary encoding

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pub fn display_name(&self) -> String

Get user-friendly display name for error messages

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pub fn from_type_tag( tag: u8, element_type: Option<Box<FieldType>>, ) -> Result<Self, SchemaError>

Construct a FieldType from a 4-bit type tag

Trait Implementations§

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impl Clone for FieldType

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fn clone(&self) -> FieldType

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 FieldType

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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 FieldType

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fn eq(&self, other: &FieldType) -> 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 StructuralPartialEq for FieldType

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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> 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> Same for T

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type Output = T

Should always be Self
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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, 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<V, T> VZip<V> for T
where V: MultiLane<T>,

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fn vzip(self) -> V