}
sub normalized_arg_number {
+ return $_[0]->number_of_args;
+}
+
+sub comparable_arg_number {
return defined($_[0]->number_of_args) ? $_[0]->number_of_args : ~0;
}
handles => {
has_args_constraints => 'count',
args_constraint_count => 'count',
+ all_args_constraints => 'elements',
});
sub _build_args_constraints {
handles => {
has_captures_constraints => 'count',
captures_constraints_count => 'count',
+ all_captures_constraints => 'elements',
});
sub _build_captures_constraints {
# Optimization since Tuple[Int, Int] would fail on 3,4,5 anyway, but this
# way we can avoid calling the constraint when the arg length is incorrect.
if(
- $self->normalized_arg_number == ~0 ||
- scalar( @args ) == $self->normalized_arg_number
+ $self->comparable_arg_number == ~0 ||
+ scalar( @args ) == $self->comparable_arg_number
) {
return $self->args_constraints->[0]->check($args);
} else {
} else {
# Because of the way chaining works, we can expect args that are totally not
# what you'd expect length wise. When they don't match length, thats a fail
- return 0 unless scalar( @args ) == $self->normalized_arg_number;
+ return 0 unless scalar( @args ) == $self->comparable_arg_number;
for my $i(0..$#args) {
$self->args_constraints->[$i]->check($args[$i]) || return 0;
}
} else {
# If infinite args with no constraints, we always match
- return 1 if $self->normalized_arg_number == ~0;
+ return 1 if $self->comparable_arg_number == ~0;
# Otherwise, we just need to match the number of args.
- return scalar( @args ) == $self->normalized_arg_number;
+ return scalar( @args ) == $self->comparable_arg_number;
}
}
sub compare {
my ($a1, $a2) = @_;
- return $a1->normalized_arg_number <=> $a2->normalized_arg_number;
+ return $a1->comparable_arg_number <=> $a2->comparable_arg_number;
}
sub scheme {
=head2 normalized_arg_number
+The number of arguments (starting with zero) that the current action defines, or
+undefined if there is not defined number of args (which is later treated as, "
+as many arguments as you like").
+
+=head2 comparable_arg_number
+
For the purposes of comparison we normalize 'number_of_args' so that if it is
undef we mean ~0 (as many args are we can think of).