Enum dsdl_parser::Directive

pub enum Directive {
    Union,
}

An Uavcan Directive

A directive is a single case-sensitive word starting with an “at sign” (@), possibly followed by space-separated arguments.

Variants

Union

This directive instructs the DSDL compiler that the current message or the current part of a service data type (request or response) is a tagged union. A tagged union is a data structure that may encode either of its fields at a time. Such a data structure contains one implicit field, a union tag that indicates what particular field the data structure is holding at the moment. Unions are required to have at least two fields.

Trait Implementations

impl Display for Directive

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

Formats the value using the given formatter.

impl Clone for Directive

fn clone(&self) -> Directive

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Copy for Directive

impl Debug for Directive

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl PartialEq for Directive

fn eq(&self, __arg_0: &Directive) -> bool

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl Eq for Directive

impl FromStr for Directive

type Err = ParseDirectiveError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Directive, Self::Err>

Parses a string s to return a value of this type.