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use std::io::Write;
use clap::{App, ArgMatches, Shell};
/// An abstraction over `clap::App` functionality needed for initializing `Runtime`. Different
/// implementations can be used for testing `imag` binaries without running them as separate
/// processes.
pub trait CliSpec<'a> {
fn name(&self) -> &str;
fn matches(self) -> ArgMatches<'a>;
fn completions<W: Write, S: Into<String>>(&mut self, _: S, _: Shell, _: &mut W) {}
}
impl<'a> CliSpec<'a> for App<'a, 'a> {
fn name(&self) -> &str {
self.get_name()
}
fn matches(self) -> ArgMatches<'a> {
self.get_matches()
}
fn completions<W: Write, S: Into<String>>(&mut self,
bin_name: S,
for_shell: Shell,
buf: &mut W) {
self.gen_completions_to(bin_name, for_shell, buf);
}
}
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