Struct Declaration 

#[non_exhaustive]
pub struct Declaration {
    pub number: i32,
    pub full_name: String,
    pub type: String,
    pub reserved: bool,
    pub repeated: bool,
    /* private fields */
}

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

number: i32

The extension number declared within the extension range.

full_name: String

The fully-qualified name of the extension field. There must be a leading dot in front of the full name.

type: String

The fully-qualified type name of the extension field. Unlike Metadata.type, Declaration.type must have a leading dot for messages and enums.

reserved: bool

If true, indicates that the number is reserved in the extension range, and any extension field with the number will fail to compile. Set this when a declared extension field is deleted.

repeated: bool

If true, indicates that the extension must be defined as repeated. Otherwise the extension must be defined as optional.

Implementations

impl Declaration

pub fn new() -> Self

pub fn set_number<T: Into<i32>>(self, v: T) -> Self

Sets the value of number.

Example

let x = Declaration::new().set_number(42);

pub fn set_full_name<T: Into<String>>(self, v: T) -> Self

Sets the value of full_name.

Example

let x = Declaration::new().set_full_name("example");

pub fn set_type<T: Into<String>>(self, v: T) -> Self

Sets the value of r#type.

Example

let x = Declaration::new().set_type("example");

pub fn set_reserved<T: Into<bool>>(self, v: T) -> Self

Sets the value of reserved.

Example

let x = Declaration::new().set_reserved(true);

pub fn set_repeated<T: Into<bool>>(self, v: T) -> Self

Sets the value of repeated.

Example

let x = Declaration::new().set_repeated(true);

Trait Implementations

impl Clone for Declaration

fn clone(&self) -> Declaration

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Declaration

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

Formats the value using the given formatter.

impl Default for Declaration

fn default() -> Declaration

Returns the “default value” for a type.

impl Message for Declaration

fn typename() -> &'static str

The typename of this message.

impl PartialEq for Declaration

fn eq(&self, other: &Declaration) -> 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 StructuralPartialEq for Declaration