Method: IO.open

Defined in:

io.c

.open(*args) ⇒ Object

call-seq:

IO.open(fd, mode = 'r', **opts)             -> io
IO.open(fd, mode = 'r', **opts) {|io| ... } -> object

Creates a new IO object, via IO.new with the given arguments.

With no block given, returns the IO object.

With a block given, calls the block with the IO object and returns the block’s value.

# File 'io.c', line 8164

static VALUE
rb_io_s_open(int argc, VALUE *argv, VALUE klass)
{
    VALUE io = rb_class_new_instance_kw(argc, argv, klass, RB_PASS_CALLED_KEYWORDS);

    if (rb_block_given_p()) {
        return rb_ensure(rb_yield, io, io_close, io);
    }

    return io;
}