Struct WireFnSignature 

pub struct WireFnSignature {
    pub args: Vec<WireArgType>,
    pub returns: WireArgType,
    pub volatility: String,
    pub null_handling: String,
}

Wire-level scalar / aggregate / procedure signature shipped by a plugin’s register export.

String-based for wire stability — plugins shouldn’t have to encode arrow_schema::DataType JSON. Translation to internal FnSignature / AggSignature / ProcedureSignature happens at adapter construction time (M6a.1.5 / M6a.2).

Fields

args: Vec<WireArgType>

Argument types in WireArgType form.

returns: WireArgType

Return type.

volatility: String

Volatility — "immutable", "stable", or "volatile". Default "immutable".

null_handling: String

Null handling — "propagate" (default) or "user_handled".

Trait Implementations

impl Clone for WireFnSignature

fn clone(&self) -> WireFnSignature

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for WireFnSignature

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for WireFnSignature

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Eq for WireFnSignature

impl PartialEq for WireFnSignature

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

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Serialize for WireFnSignature

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for WireFnSignature