Struct RawCtxMetadata 

pub struct RawCtxMetadata {
    pub dtype: String,
    pub shape: Option<Vec<usize>>,
    pub nullable: Option<bool>,
    pub extra: Option<Value>,
}

RawCtx input buffer descriptor provided by the host.

Fields

dtype: String

shape: Option<Vec<usize>>

nullable: Option<bool>

extra: Option<Value>

Implementations

impl RawCtxMetadata

pub fn new(dtype: impl Into<String>) -> Self

Create metadata with a required dtype.

pub fn with_shape(self, shape: Vec<usize>) -> Self

Attach an optional shape (e.g. [rows, cols]).

pub fn with_nullable(self, nullable: bool) -> Self

Mark whether the data is nullable.

pub fn with_extra(self, extra: JsonValue) -> Result<Self>

Merge additional metadata fields (must be an object).

Trait Implementations

impl Clone for RawCtxMetadata

fn clone(&self) -> RawCtxMetadata

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for RawCtxMetadata

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

Formats the value using the given formatter.