The previously used term "3-Clause BSD License" is not properly
standarized. A common standard is SPDX, therefore "3-Clause BSD License"
is substituted with "BSD-3-Clause" which is a SPDX identifier.
`grep -rl "3-Clause BSD License" | xargs -n1 sed -i "s/3-Clause BSD
License/BSD-3-Clause/g"`
With guidance from Remi Collet, use ZEND_BEGIN_ARG_WITH_TENTATIVE_RETURN_TYPE_EX macro, and use a conditional to fake that macro
for earlier php versions. Tested on 8.1 and 7.4, and deprecation notices gone plus all tests pass
php 8.1 is more strict, and raises some deprecation notices with existing protobuf code. Not all of the
deprecations can be fixed without dropping support for php7.x (eg, the 'mixed' type doesn't appear until
8.1, and union types until 8.0, but as an interim solution the 'ReturnTypeWillChange' attribute can be
used to suppress the notices. In passing, also be explicit about a cast from float to int in 'zigZagEncode64'
which 8.1 also complains about when running tests.
* Fix comment syntax in any.proto
Remove extra spaces which cause incorrect indentation in godoc.
Remove the "====" style title which is not rendered by godoc.
* Run ./generate_descriptor_proto.sh
The well-known types generate C code into wkt.inc, and this C code was
not testing isset($msg->submsg_field) like the generated code does:
```php
// PHP generated getter: checks isset().
public function getOptions()
{
return isset($this->options) ? $this->options : null;
}
```
```c
// C generated getter, does not check upb_msg_has()
static PHP_METHOD(google_protobuf_Value, getListValue) {
Message* intern = (Message*)Z_OBJ_P(getThis());
const upb_fielddef *f = upb_msgdef_ntofz(intern->desc->msgdef,
"list_value");
zval ret;
Message_get(intern, f, &ret);
RETURN_COPY_VALUE(&ret);
}
```
This led to an error where we wnuld try to get a sub-message field from upb
when it `upb_msg_has(msg, field) == false`, which is an error according to upb.
There are two possible fixes for this bug. A guiding principle is that we want
the generated C code in wkt.inc to have the same behavior as PHP generated
code. Following this principle, the two possible fixes are:
1. Change the code generator for wkt.inc to check upb_msg_has(f) before
calling Message_get(). This would match the isset() check that the
The PHP generated code does, and we would leave the PHP code unchanged.
2. Change Message_get() to itself perform the upb_msg_has(f) check for
sub-message fields. This means that generated code would no longer need
to perform an isset() check, so we would want to remove this check from
the PHP generated code also to avoid a redundant check.
Both of these are reasonable fixes, and it is not immediately obvious which is
better. (1) has the benefit of resolving this case when we are in more
specialized code (a getter function that already knows this is a sub-message
field), and therefore avoids performing the check later in more generic code
that would have to test the type again. On the other hand, the isset() check is
not needed for the pure PHP implementation, as an unset PHP variable will
return `null` anyway. And for the C extension, we'd rather check upb_msg_has()
at the C level instead of PHP.
So this change implements (2). The generated code in wkt.inc remains unchanged,
and the PHP generated code for sub-message fields is changed to remove the
isset() check.