Struct design_pattern_examples_rust::command::command_commands::CommandNoParameters

pub struct CommandNoParameters {
    name: String,
    operation: fn(source: &mut CommandTextObject),
}

Represents an operation that can be applied to a CommandTextObject with no additional parameters.

This struct implements the ICommand trait so it can be treated the same as any other kind of command.

Fields

name: String

Easy-to-read command name.

operation: fn(source: &mut CommandTextObject)

No parameter operation to apply to a CommandTextObject.

Implementations

impl CommandNoParameters

pub fn new( name: &str, operation: fn(source: &mut CommandTextObject) ) -> Box<dyn ICommand>

Constructor for a command that applies an operation to a CommandTextObject but does not require any additional parameters.

Parameters

• name

  Easy-to-read name of the command.

• operation

  The operation to apply to a CommandTextObject and that takes no parameters.

Returns

Returns an ICommand object representing the command.

Trait Implementations

impl ICommand for CommandNoParameters

fn execute(&self, receiver: &mut CommandTextObject)

Execute the command on the given CommandTextObject.

fn to_string(&self) -> String

Convert the command to a string representation.