Files
libguestfs/generator
Matthew Booth 0a7b734d2f generator: Create a separate type for optional arguments
Previously, optional arguments had the same type as regular arguments, but were
constrained by various runtime tests to be only Bool, Int, Int64 or String. This
change makes the type of optional arguments stronger by giving them their own
type.

A convenience function, optargs_to_args is defined to convert optargs in the few
places where they are genuinely treated identically to mandatory arguments.

It also allows for future changes to optional arguments which do not affect
mandatory arguments.

RWMJ:
 - removed redundant parens
 - readded the check for > 64 optargs, but changed it to > 63
 - changed the new function to args_of_optargs
2012-01-09 13:30:34 +00:00
..

This program generates a large amount of code and documentation for
all the daemon actions.

To add a new action there are only two files you need to change,
'generator_actions.ml' to describe the interface, and
daemon/<somefile>.c to write the implementation.

After editing these files, build it (make -C generator) to regenerate
all the output files.  'make' will rerun this automatically when
necessary.

IMPORTANT: This program should NOT print any warnings at compile time
or run time.  If it prints warnings, you should treat them as errors.

OCaml tips:

(1) In emacs, install tuareg-mode to display and format OCaml code
correctly.  'vim' comes with a good OCaml editing mode by default.

(2) Read the resources at http://ocaml-tutorial.org/

(3) A module called 'Generator_foo' is defined in one or two files
called 'generator_foo.mli' and 'generator_foo.ml' (NB: lowercase first
letter).  The *.mli file, if present, defines the public interface for
the module.  The *.ml file is the implementation.  If the *.mli file
is missing then everything is exported.

Some notable files in this directory:

generator_actions.ml          The libguestfs API.
generator_structs.ml          Structures returned by the API.
generator_c.ml                Generate C API.
generator_<lang>.ml           Generate bindings for <lang>.
generator_main.ml             The main generator program.