Struct Func 

pub struct Func {
    pub parameter_types: Vec<Type>,
    pub return_type: Option<Box<Type>>,
    pub nullability: i32,
}

A function type for higher-order functions. Represents a function that takes parameters of specified types and returns a value of a specified type.

Fields

parameter_types: Vec<Type>

Types of parameters this function type accepts.

return_type: Option<Box<Type>>

Return type of the function.

nullability: i32

Nullability of the function value itself, not its return type. A nullable function type (e.g., func?<i32 -> i32>) means the function reference may be null. This is distinct from the return type’s nullability (e.g., func<i32 -> i32?> where the function always exists but may return null).

Implementations

impl Func

pub fn nullability(&self) -> Nullability

Returns the enum value of nullability, or the default if the field is set to an invalid enum value.

pub fn set_nullability(&mut self, value: Nullability)

Sets nullability to the provided enum value.

Trait Implementations

impl Clone for Func

fn clone(&self) -> Func

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Func

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

Formats the value using the given formatter.

impl Default for Func

fn default() -> Self

Returns the “default value” for a type.

impl Message for Func

fn encoded_len(&self) -> usize

Returns the encoded length of the message without a length delimiter.

fn clear(&mut self)

Clears the message, resetting all fields to their default.

fn encode(&self, buf: &mut impl BufMut) -> Result<(), EncodeError>

where Self: Sized,

Encodes the message to a buffer.

fn encode_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message to a newly allocated buffer.

fn encode_length_delimited( &self, buf: &mut impl BufMut, ) -> Result<(), EncodeError>

where Self: Sized,

Encodes the message with a length-delimiter to a buffer.

fn encode_length_delimited_to_vec(&self) -> Vec<u8>

where Self: Sized,

Encodes the message with a length-delimiter to a newly allocated buffer.

fn decode(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes an instance of the message from a buffer.

fn decode_length_delimited(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes a length-delimited instance of the message from the buffer.

fn merge(&mut self, buf: impl Buf) -> Result<(), DecodeError>

where Self: Sized,

Decodes an instance of the message from a buffer, and merges it into self.

fn merge_length_delimited(&mut self, buf: impl Buf) -> Result<(), DecodeError>

where Self: Sized,

Decodes a length-delimited instance of the message from buffer, and merges it into self.

impl Name for Func

const NAME: &'static str = "Func"

Simple name for this Message. This name is the same as it appears in the source .proto file, e.g. FooBar.

const PACKAGE: &'static str = "substrait"

Package name this message type is contained in. They are domain-like and delimited by ., e.g. google.protobuf.

fn full_name() -> String

Fully-qualified unique name for this Message. It’s prefixed with the package name and names of any parent messages, e.g. google.rpc.BadRequest.FieldViolation. By default, this is the package name followed by the message name. Fully-qualified names must be unique within a domain of Type URLs.

fn type_url() -> String

Type URL for this Message, which by default is the full name with a leading slash, but may also include a leading domain name, e.g. type.googleapis.com/google.profile.Person. This can be used when serializing into the google.protobuf.Any type.

impl PartialEq for Func

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Func