Enum Command 

pub enum Command {
    SetVariables(SetVariables),
    PrintVariables(PrintVariables),
    SetFunctions(SetFunctions),
    PrintFunctions(PrintFunctions),
}

Set of information that defines the behavior of a single invocation of the typeset built-in

The syntax::interpret function returns a value of this type after parsing the arguments. Call the execute method to perform the actual operation.

Variants

SetVariables(SetVariables)

PrintVariables(PrintVariables)

SetFunctions(SetFunctions)

PrintFunctions(PrintFunctions)

Implementations

impl Command

pub fn execute<S>( self, env: &mut Env<S>, print_context: &PrintContext<'_>, ) -> Result<String, Vec<ExecuteError>>

Executes the command (except for actual printing).

This method updates the shell environment according to the command. If there are no errors, the method returns a string that should be printed to the standard output. Otherwise, the method returns a non-empty vector of errors.

Trait Implementations

impl Clone for Command

fn clone(&self) -> Command

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Command

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

Formats the value using the given formatter.

impl From<PrintFunctions> for Command

fn from(v: PrintFunctions) -> Self

Converts to this type from the input type.

impl From<PrintVariables> for Command

fn from(v: PrintVariables) -> Self

Converts to this type from the input type.

impl From<SetFunctions> for Command

fn from(v: SetFunctions) -> Self

Converts to this type from the input type.

impl From<SetVariables> for Command

fn from(v: SetVariables) -> Self

Converts to this type from the input type.

impl PartialEq for Command

fn eq(&self, other: &Command) -> 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 Eq for Command

impl StructuralPartialEq for Command