Struct Repl 

pub struct Repl {
    pub bin: &'static str,
    pub json: bool,
    pub fixed: Vec<&'static str>,
}

Available on crate feature repl only.

A read-eval-print loop over stdin for one binary.

Fields

bin: &'static str

The binary name, which the prompt and the help carry.

json: bool

Whether the session prints JSON, as its --json says.

fixed: Vec<&'static str>

The flags the session fixes when it starts, spelled as a line would (-a, --account): a line setting one is refused naming it. A binary adds its own, as in --backend.

Implementations

impl Repl

pub fn new(bin: &'static str, json: bool) -> Self

Builds the loop of the binary bin, printing JSON when json is set, as the session’s printer does, and fixing the shared account, configuration and log flags.

pub fn run<T: Subcommand, C: ErrorCode>( &self, execute: impl FnMut(&mut StdoutPrinter, T) -> Result<()>, ) -> Result<()>

Runs the loop over stdin until EOF, quit or exit.

T is the binary’s command tree, parsed from each line without the binary name, and C its failure codes. execute runs one parsed command with the printer of its line, JSON when the session or the line asks for it; a repl or mcp line never reaches it. A version T carries (#[command(version)] on the enum) prints after any command. The loop claims stdin first, and fails only when stdin or stdout does.

Trait Implementations

impl Clone for Repl

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Repl

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

Formats the value using the given formatter.