method
parameters
ruby latest stable - Class:
Method
parameters()public
Returns the parameter information of this method.
def foo(bar); end method(:foo).parameters #=> [[:req, :bar]] def foo(bar, baz, bat, &blk); end method(:foo).parameters #=> [[:req, :bar], [:req, :baz], [:req, :bat], [:block, :blk]] def foo(bar, *args); end method(:foo).parameters #=> [[:req, :bar], [:rest, :args]] def foo(bar, baz, *args, &blk); end method(:foo).parameters #=> [[:req, :bar], [:req, :baz], [:rest, :args], [:block, :blk]]
static VALUE
rb_method_parameters(VALUE method)
{
const rb_iseq_t *iseq = rb_method_iseq(method);
if (!iseq) {
return unnamed_parameters(method_arity(method));
}
return rb_iseq_parameters(iseq, 0);
}