File.open options hash "mode" as int

[Roger Pack]

Hello.
in 1.9.x, I see that these work:
File.open('yo', 'w')
File.open('yo', File::WRONLY|File::TRUNC|File::CREAT)
File.open('yo', :mode => 'w')

So shouldn't this also work?
TypeError: can't convert Fixnum into String

-roger-

 

[7stud --]

Well, the docs say this:

=3D=3D=3D
Ipen(fd, mode_string=3D"r" [, opt] ) =E2=86=92 io
Ipen(fd, mode_string=3D"r" [, opt] ) {|io| block } =E2=86=92 obj

Document-method: IO:pen

With no associated block, open is a synonym for IO.new.
=3D=3D=3D

=3D=3D=3D
IO.new(fd [, mode] [, opt]) =E2=86=92 io

Returns a new IO object (a stream) for the given IO object or integer =

file descriptor and mode string. See also IO.sysopen and IO.for_fd.
Parameters
fd: numeric file descriptor
mode: file mode. a string or an integer
opt: hash for specifying mode by name.
=3D=3D=3D

The last line there seems to be why you are getting the error.

-- =

Posted via http://www.ruby-forum.com/.=

 

[Roger Pack]

mode: file mode. a string or an integer

The last line there seems to explain why you are getting the error.
Although, you aren't supplying a *numeric* file descriptor either, so
who knows.

File::WRONLY|File::TRUNC|File::CREAT is numeric...

 

[7stud --]

Roger Pack wrote in post #999326:

File::WRONLY|File::TRUNC|File::CREAT is numeric...

...and what does the last line of the docs I posted say?

 

[Roger Pack]

opt: hash for specifying mode by name.

I guess this is why. I just don't see quite *why* it requires mode by =

name in opts, but accepts it by int when given as a parameter. But that =

makes sense.

A few more notes.

Ipen(fd, mode_string=3D"r" [, opt] ) =E2=86=92 io

Yeah, interestingly, this doesn't look at all like
File.open('filename')
so...the docs just lack the most common usage of File.open apparently? =

Odd.

-- =

Posted via http://www.ruby-forum.com/.=

 

[7stud --]

Don't get me started on how piss poor the ruby docs are.

 

[Phillip Gawlowski]

Don't get me started on how piss poor the ruby docs are.

http://blog.steveklabnik.com/2011/05/10/contributing-to-ruby-s-documentatio=
n.html

--=20
Phillip Gawlowski

A method of solution is perfect if we can forsee from the start,
and even prove, that following that method we shall attain our aim.
=A0 =A0 =A0 =A0 =A0 =A0 =A0 =A0-- Leibnitz