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Move where help is computed

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greg 2019-03-19 21:12:10 -07:00
parent 3a98096b61
commit 04253543e9
1 changed files with 19 additions and 18 deletions
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37
schala-repl/src/repl/mod.rs
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@ -141,31 +141,35 @@ impl Repl {
} }
} }
fn print_help_message(&mut self) -> String { fn print_help_message(&mut self, commands_passed_to_help: &[&str] ) -> String {
let mut buf = String::new(); let mut buf = String::new();
let directives = match self.get_directives() { let directives = match self.get_directives() {
CommandTree::Top(children) => children, CommandTree::Top(children) => children,
_ => panic!("Top-level CommandTree not Top") _ => panic!("Top-level CommandTree not Top")
}; };
writeln!(buf, "MetaInterpreter options").unwrap(); match commands_passed_to_help {
writeln!(buf, "-----------------------").unwrap(); [] => {
writeln!(buf, "MetaInterpreter options").unwrap();
writeln!(buf, "-----------------------").unwrap();
for directive in directives { for directive in directives {
let trailer = " "; let trailer = " ";
writeln!(buf, "{}{}- {}", directive.get_cmd(), trailer, directive.get_help()).unwrap(); writeln!(buf, "{}{}- {}", directive.get_cmd(), trailer, directive.get_help()).unwrap();
} }
let ref lang = self.get_cur_language_state(); let ref lang = self.get_cur_language_state();
writeln!(buf, "").unwrap(); writeln!(buf, "").unwrap();
writeln!(buf, "Language-specific help for {}", lang.get_language_name()).unwrap(); writeln!(buf, "Language-specific help for {}", lang.get_language_name()).unwrap();
writeln!(buf, "-----------------------").unwrap(); writeln!(buf, "-----------------------").unwrap();
//writeln!(buf, "{}", lang.custom_interpreter_directives_help()).unwrap(); },
//writeln!(buf, "{}", "<not implemented>").unwrap(); _ => {
writeln!(buf, "Command-specific help not available yet").unwrap();
}
};
buf buf
} }
fn get_cur_language_state(&mut self) -> &mut Box<ProgrammingLanguageInterface> { fn get_cur_language_state(&mut self) -> &mut Box<ProgrammingLanguageInterface> {
//TODO this is obviously not complete //TODO this is obviously not complete
&mut self.language_states[0] &mut self.language_states[0]
@ -209,10 +213,7 @@ impl Repl {
::std::process::exit(0) ::std::process::exit(0)
})), })),
CommandTree::term_with_function("help", Some("Print this help message"), Box::new(|repl: &mut Repl, cmds: &[&str]| { CommandTree::term_with_function("help", Some("Print this help message"), Box::new(|repl: &mut Repl, cmds: &[&str]| {
Some(match cmds { Some(repl.print_help_message(cmds))
[] => repl.print_help_message(),
_ => format!("ARGS: {:?}", cmds)
})
})), })),
CommandTree::nonterm("debug", 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"), Some("show or hide pass debug info for a given pass, or display the names of all passes, or turn timing on/off"),