greg/schala
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Truncate command list passed to command function

Browse Source 
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
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

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"),