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<'de> Deserialize<'de> for Func

fn deserialize<D>(deserializer: D) -> Result<Self, D::Error>

where D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

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 PartialEq for Func

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

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 Func