Struct Shell

pub struct Shell {
    pub stack: Stack,
    /* private fields */
}

An interactive shell that runs glue commands using a stack. Commands are incrementally added and executed as they are passed to cin from prompt.

Fields

stack: Stack

The Stack instance of the shell. This instance lives for the entire Shell instance lifetime.

Implementations

impl Shell

pub fn new(verbose: bool) -> Self

Creates a new Shell instance with an empty Stack.

pub async fn start(&mut self)

Start the prompt loop asynchronously. The loop executes a glue command at each iteration, or ends when a None is provided as command.

Note that a None command equals to a prompt with a exit or quit string: empty string will just be ignored and the loop will continue.

pub fn load_file(&mut self, path: String) -> Result<(), String>

Load content of a file into the execution stack.

pub async fn execute_all(&mut self) -> Result<(), String>

Execute all runners in the stack consecutively.

pub fn command(&mut self, command: String) -> Result<(), String>

Add command to execution stack.