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Add functions for non-ptr style virtual calls in GDExtension

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This adds two functions to `GDExtensionClassCreationInfo` that allow for developers to supply a generic virtual call function along with user data to be sent to that call.

If `get_virutal_call_data_func` is not null, extensions call this function to get user data to pass to a supplied `call_virtual_with_data_func`. Both must be provided is one is provided.

If `get_virtual_call_data_func` is null, Godot falls back to the old `get_virtual_func` logic.

Fixes #63275

Co-authored-by: David Snopek <dsnopek@gmail.com>
This commit is contained in:
Jeff Ward
2023-08-15 20:03:49 -04:00
parent 571cd0eb79
commit 60851af4da
4 changed files with 42 additions and 11 deletions
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27
core/object/make_virtuals.py
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@@ -2,7 +2,7 @@ proto = """
#define GDVIRTUAL$VER($RET m_name $ARG) \\
StringName _gdvirtual_##m_name##_sn = #m_name;\\
mutable bool _gdvirtual_##m_name##_initialized = false;\\
mutable GDExtensionClassCallVirtual _gdvirtual_##m_name = nullptr;\\
mutable void* _gdvirtual_##m_name = nullptr;\\
template<bool required>\\
_FORCE_INLINE_ bool _gdvirtual_##m_name##_call($CALLARGS) $CONST { \\
ScriptInstance *_script_instance = ((Object*)(this))->get_script_instance();\\
@@ -16,15 +16,24 @@ _FORCE_INLINE_ bool _gdvirtual_##m_name##_call($CALLARGS) $CONST { \\
} \\
}\\
if (unlikely(_get_extension() && !_gdvirtual_##m_name##_initialized)) {\\
/* TODO: C-style cast because GDExtensionStringNamePtr's const qualifier is broken (see https://github.com/godotengine/godot/pull/67751) */\\
_gdvirtual_##m_name = (_get_extension() && _get_extension()->get_virtual) ? _get_extension()->get_virtual(_get_extension()->class_userdata, (GDExtensionStringNamePtr)&_gdvirtual_##m_name##_sn) : (GDExtensionClassCallVirtual) nullptr;\\
_gdvirtual_##m_name = nullptr;\\
if (_get_extension()->get_virtual_call_data && _get_extension()->call_virtual_with_data) {\\
_gdvirtual_##m_name = _get_extension()->get_virtual_call_data(_get_extension()->class_userdata, &_gdvirtual_##m_name##_sn);\\
} else if (_get_extension()->get_virtual) {\\
_gdvirtual_##m_name = (void *)_get_extension()->get_virtual(_get_extension()->class_userdata, &_gdvirtual_##m_name##_sn);\\
}\\
_gdvirtual_##m_name##_initialized = true;\\
}\\
if (_gdvirtual_##m_name) {\\
$CALLPTRARGS\\
$CALLPTRRETDEF\\
_gdvirtual_##m_name(_get_extension_instance(),$CALLPTRARGPASS,$CALLPTRRETPASS);\\
$CALLPTRRET\\
if (_get_extension()->get_virtual_call_data && _get_extension()->call_virtual_with_data) {\\
_get_extension()->call_virtual_with_data(_get_extension_instance(), &_gdvirtual_##m_name##_sn, _gdvirtual_##m_name, $CALLPTRARGPASS,$CALLPTRRETPASS);\\
$CALLPTRRET\\
} else {\\
((GDExtensionClassCallVirtual)_gdvirtual_##m_name)(_get_extension_instance(),$CALLPTRARGPASS,$CALLPTRRETPASS);\\
$CALLPTRRET\\
}\\
return true;\\
}\\
\\
@@ -41,8 +50,12 @@ _FORCE_INLINE_ bool _gdvirtual_##m_name##_overridden() const { \\
return _script_instance->has_method(_gdvirtual_##m_name##_sn);\\
}\\
if (unlikely(_get_extension() && !_gdvirtual_##m_name##_initialized)) {\\
/* TODO: C-style cast because GDExtensionStringNamePtr's const qualifier is broken (see https://github.com/godotengine/godot/pull/67751) */\\
_gdvirtual_##m_name = (_get_extension() && _get_extension()->get_virtual) ? _get_extension()->get_virtual(_get_extension()->class_userdata, (GDExtensionStringNamePtr)&_gdvirtual_##m_name##_sn) : (GDExtensionClassCallVirtual) nullptr;\\
_gdvirtual_##m_name = nullptr;\\
if (_get_extension()->get_virtual_call_data && _get_extension()->call_virtual_with_data) {\\
_gdvirtual_##m_name = _get_extension()->get_virtual_call_data(_get_extension()->class_userdata, &_gdvirtual_##m_name##_sn);\\
} else if (_get_extension()->get_virtual) {\\
_gdvirtual_##m_name = (void *)_get_extension()->get_virtual(_get_extension()->class_userdata, &_gdvirtual_##m_name##_sn);\\
}\\
_gdvirtual_##m_name##_initialized = true;\\
}\\
if (_gdvirtual_##m_name) {\\