Trait ExtensionProtoConvert 

pub trait ExtensionProtoConvert<T> {
    // Required method
    fn convert(&self) -> Result<T, ExtensionError>;
}

Conversion between extension arguments and Substrait protobuf values.

Extension arguments are the structured values exposed to Explainable implementations, such as ExtensionArgs, ExtensionValue, and ExtensionColumn. This trait adapts those values to and from protobuf types without going through text.

Implementations may convert in either direction; the target type T determines the direction.

Required Methods

fn convert(&self) -> Result<T, ExtensionError>

Convert this value into T.

Implementations on Foreign Types

impl ExtensionProtoConvert<NamedStruct> for [ExtensionColumn]

fn convert(&self) -> Result<NamedStruct, ExtensionError>

impl ExtensionProtoConvert<Vec<ExtensionColumn>> for NamedStruct

fn convert(&self) -> Result<Vec<ExtensionColumn>, ExtensionError>

Implementors