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Truncate command list passed to command function 

Only pass it the arguments after its own path, if any exist
This commit is contained in:
greg 2019-03-16 18:33:31 -07:00
parent d06cf90fce
commit ac0050e5d1
2 changed files with 15 additions and 9 deletions
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2
schala-repl/src/repl/command_tree.rs
View File

@ -1,6 +1,6 @@
use super::Repl;
pub type BoxedCommandFunction = Box<(fn(&mut Repl, Vec<&str>) -> Option<String>)>;
pub type BoxedCommandFunction = Box<(fn(&mut Repl, &[&str]) -> Option<String>)>;
#[derive(Clone)]
pub enum CommandTree {

22
schala-repl/src/repl/mod.rs
View File

@ -92,7 +92,7 @@ impl Repl {
*/
}
fn get_function_from_directives<'a>(directives: &'a CommandTree, commands: &Vec<&str>) -> Result<&'a BoxedCommandFunction, String> {
fn get_function_from_directives<'a>(directives: &'a CommandTree, commands: &Vec<&str>) -> Result<(&'a BoxedCommandFunction, usize), String> {
let mut dir_pointer: &CommandTree = &directives;
let mut idx = 0;
@ -112,7 +112,10 @@ impl Repl {
};
},
CommandTree::Terminal { name, function, .. } => {
break function.as_ref().ok_or(format!("No action specified for: {:?}", commands));
break match function.as_ref() {
Some(f) => Ok((f, idx)),
None => Err(format!("No action specified for: {:?}", commands)),
};
}
}
}
@ -131,9 +134,9 @@ impl Repl {
}
let directives = self.get_directives();
let result: Result<&BoxedCommandFunction, String> = Repl::get_function_from_directives(&directives, &commands);
let result: Result<(&BoxedCommandFunction, _), String> = Repl::get_function_from_directives(&directives, &commands);
match result {
Ok(f) => f(self, commands),
Ok((f, idx)) => f(self, &commands[idx..]),
Err(err) => Some(err.red().to_string())
}
}
@ -208,16 +211,19 @@ impl Repl {
*/
CommandTree::Top(vec![
CommandTree::term_with_function("exit", Some("exit the REPL"), Box::new(|repl: &mut Repl, _cmds: Vec<&str>| {
CommandTree::term_with_function("exit", Some("exit the REPL"), Box::new(|repl: &mut Repl, _cmds: &[&str]| {
repl.save_before_exit();
::std::process::exit(0)
})),
CommandTree::term_with_function("quit", Some("exit the REPL"), Box::new(|repl: &mut Repl, _cmds: Vec<&str>| {
CommandTree::term_with_function("quit", Some("exit the REPL"), Box::new(|repl: &mut Repl, _cmds: &[&str]| {
repl.save_before_exit();
::std::process::exit(0)
})),
CommandTree::term_with_function("help", Some("Print this help message"), Box::new(|repl: &mut Repl, _cmds: Vec<&str>| {
Some(repl.print_help_message())
CommandTree::term_with_function("help", Some("Print this help message"), Box::new(|repl: &mut Repl, cmds: &[&str]| {
Some(match cmds {
[] => repl.print_help_message(),
_ => format!("ARGS: {:?}", cmds)
})
})),
CommandTree::nonterm("debug",
Some("show or hide pass debug info for a given pass, or display the names of all passes, or turn timing on/off"),