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This is a simple renaming of the files/modules.
Note that in OCaml, module names are derived from filenames by
capitalizing the first letter. Thus the old module names had the form
"Generator_api_versions". The new modules names have the form
"Api_versions".
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These would break if the buffer contained a \0 character.
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This allows lists of strings to be passed as an optional argument.
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In C, a function called 'func' which has once_had_no_optargs=true will
(because of the previous commit) generate 'func_opts' and a
backwards-compatibility function called 'func'.
This commit changes some of the non-C bindings so that they also
generate 'func_opts' which is merely a wrapper that calls 'func'.
This avoids incompatibility when we rename 'mkfs_opts' etc back to
plain 'mkfs', and it also makes it easier to translate between other
language bindings and C code.
NB: Some bindings do not include aliases:
PHP: There's no way to easily alias methods in PHP < 5.3, and we
can't assume everyone has this minimum version.
GObject: Very complex to add aliases, but we should probably do this
at some point.
Haskell: No support for optargs in these bindings. Unfortunately
this means that we can no longer bind 'Guestfs.add_drive'
(since it will be changed to add optional arguments) making
the Haskell bindings even less useful than they were already.
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This updates commit 9286f556c6a9e6967fcac8aacdae3660821c4c7a.
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This field, which is generated internally by the generator, is the
name of the C function corresponding to each action.
For actions that have NO optional arguments, it's just "guestfs_<name>".
For actions that have any optional arguments, it is
"guestfs_<name>_argv" (since any binding has to construct the optional
argument struct explicitly).
In a future commit, this mapping may become more complex.
This commit also "fixes" the C# bindings which didn't handle optional
arguments properly at all. In fact, it doesn't fix this, it just
changes it enough that it probably now compiles. We should either
compile and test the bindings routinely with Mono, or drop them, since
they are starting to bit-rot.
In the GObject bindings, I have added a space between the C function
name and the first paren.
Apart from the C# and GObject changes, this is just code motion. It
was verified by diffing the output of the generator before and after.
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Each action changes from a tuple like this:
("cat", (RString "content", [Pathname "path"], []), 4,
[ProtocolLimitWarning],
[InitISOFS, Always, TestOutput (
[["cat"; "/known-2"]], "abcdef\n")],
"list the contents of a file",
"[...]");
to a slightly longer but more readable struct:
{ defaults with
name = "cat";
style = RString "content", [Pathname "path"], [];
proc_nr = Some 4;
protocol_limit_warning = true;
tests = [
InitISOFS, Always, TestOutput (
[["cat"; "/known-2"]], "abcdef\n")
];
shortdesc = "list the contents of a file";
longdesc = "[...]" };
["defaults" is a struct which contains the defaults for every field,
allowing us to use the "{ defaults with ... }" syntax to just update
the fields we want to be different from the defaults.]
This is a mechanical change and there is no change to the output of
the generator. I checked the output before and after with diff to
verify this. There are no changes in the output apart from UUIDs
which are expected to change with each run.
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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
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