register method

void register(
  1. LocalCommand command
)

Registers command under its name and aliases.

Throws ArgumentError if a name/alias is already taken.

Implementation

void register(LocalCommand command) {
  for (final key in [command.name, ...command.aliases]) {
    if (_byName.containsKey(key)) {
      throw ArgumentError.value(key, 'command', 'already registered');
    }
    _byName[key] = command;
  }
}