Struct yash_syntax::syntax::SimpleCommand

pub struct SimpleCommand {
    pub assigns: Vec<Assign>,
    pub words: Vec<Word>,
    pub redirs: Rc<Vec<Redir>>,
}

Command that involves assignments, redirections, and word expansions.

In the shell language syntax, a valid simple command must contain at least one of assignments, redirections, and words. The parser must not produce a completely empty simple command.

Fields

assigns: Vec<Assign>

words: Vec<Word>

redirs: Rc<Vec<Redir>>

Implementations

impl SimpleCommand

pub fn is_empty(&self) -> bool

Returns true if the simple command does not contain any assignments, words, or redirections.

pub fn is_one_word(&self) -> bool

Returns true if the simple command contains only one word.

Trait Implementations

impl Clone for SimpleCommand

fn clone(&self) -> SimpleCommand

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for SimpleCommand

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

Formats the value using the given formatter.

impl Display for SimpleCommand

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

Formats the value using the given formatter.

impl FromStr for SimpleCommand

Converts a string to a simple command.

This implementation does not support parsing a command that contains a here-document.

type Err = Option<Error>

Optional error value

The error is None if the first token does not start a simple command. A proper error is returned in Some(_) in case of a syntax error.

fn from_str(s: &str) -> Result<SimpleCommand, Option<Error>>

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

impl PartialEq<SimpleCommand> for SimpleCommand

fn eq(&self, other: &SimpleCommand) -> 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 !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for SimpleCommand

impl StructuralEq for SimpleCommand

impl StructuralPartialEq for SimpleCommand