These types are of questionable value and the API was not entirely
thought out - remove for now, and if a legitimate use is found
later, they may be readded (with a better API), but typically it
seems best to redesign the bad APIs around safe containers...
Even though ownership info belongs to params/returns/etc at syntax
level, we can still store it in the type and turn several API funcs
into one this way.
This is the new ownership system for Eolian, working on params,
returns, struct fields or events directly rather than specifying
ownership at type level. As the new system will evolve it will
gain missing features and necessary checks.
Summary:
Summary : String buffer returned by eina_strbuf_new() is not freed in some cases
@Fix
Signed-off-by: Uma Devika <u.bodapati@samsung.com>
Reviewers: cedric, tasn, jpeg, raster, singh.amitesh
Subscribers: tanwar.umesh07, yashu21985, cedric, jpeg
Differential Revision: https://phab.enlightenment.org/D5000
First steps toward explicit function pointer support in eolian.
To declare a function pointer type, use the following syntax, similar to
a regular eolian method declaration.
function FunctionName {
params {
...
}
return: Return type
}
This allows us to unify retrieval of docs for both regular and
overridden funcs without having two separate APIs. It's currently
missing validation and docgen is still not adjusted properly for
it either, but at least there's this. Enables retrieval of docs
for overridden funcs by default as well.
As there is no need to have separate is_auto, is_empty and
is_pure_virtual for functions and implements (each function has
its own base implement by default) I removed the function ones.
Instead, I added a way to retrieve a function's base implement
so that you can instead do the checks on the implement even when
you only have the function.
I also moved base implement build directly into the parser instead
of the database filler. That allows for significant cleanup. I
also removed distinction of implement pointers in Eolian_Function
for get and set as implements now always contain an entire thing
so the pointer was always the same anyway.
Things should still behave more or less the same, but ordering
of generated functions has changed because ordering of implements
has changed.
Previously one API used just virtual (incorrect) and one used
virtual_pure (which just sounds weird). So unify with a single
name, pure_virtual, similar as in other lanugages.
This does not change eo file syntax yet.
Now all error/unknown/etc values returned from APIs are zero,
previously it was a mix of zeroes and minus ones. Also, some
enums that had no error/invalid value before have one now, which
allows for better distinction between what is an error and what
is an intended result.
Instead of
Other.Class.some_prop.get;
Other.Class.some_prop.set;
you can write
Other.Class.some_prop { get; set; }
The other syntax is deprecated from now on.
Both variables and constants can have extern on them (it means the same thing
as in types, they won't get generated in C). This is different from the previous
semantics which only allowed extern on globals, which makes no sense.
Both globals and constants are allowed to have a value (previously only
constants were); constants are required to have a value. Globals having
a value is just a convenience for initialization during source generation.
This is unlike the previous behavior, where the value was optional for both
globals and constants and only allowed when not marked extern, which makes
no sense either.
Obivously, even when globals have a value, they're not allowed to be used
in expressions, as they cannot be evaluated at compile time (they're mutable).
Future is the read only side of a Promise. For now, I am not removing
Eina_Promise until everything is in place, but eventually the promise
type of eolian will be gone.