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proto = """
#define GDVIRTUAL$VER($RET m_name $ARG) \\
StringName _gdvirtual_##m_name##_sn = #m_name;\\
mutable bool _gdvirtual_##m_name##_initialized = false;\\
mutable GDNativeExtensionClassCallVirtual _gdvirtual_##m_name = nullptr;\\
template<bool required>\\
_FORCE_INLINE_ bool _gdvirtual_##m_name##_call($CALLARGS) $CONST { \\
ScriptInstance *_script_instance = ((Object*)(this))->get_script_instance();\\
if (_script_instance) {\\
Callable::CallError ce; \\
$CALLSIARGS\\
$CALLSIBEGIN_script_instance->callp(_gdvirtual_##m_name##_sn, $CALLSIARGPASS, ce);\\
if (ce.error == Callable::CallError::CALL_OK) {\\
$CALLSIRET\\
return true;\\
} \\
}\\
if (unlikely(_get_extension() && !_gdvirtual_##m_name##_initialized)) {\\
/* TODO: C-style cast because GDNativeStringNamePtr'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, (GDNativeStringNamePtr)&_gdvirtual_##m_name##_sn) : (GDNativeExtensionClassCallVirtual) nullptr;\\
_gdvirtual_##m_name##_initialized = true;\\
}\\
if (_gdvirtual_##m_name) {\\
$CALLPTRARGS\\
$CALLPTRRETDEF\\
_gdvirtual_##m_name(_get_extension_instance(),$CALLPTRARGPASS,$CALLPTRRETPASS);\\
$CALLPTRRET\\
return true;\\
}\\
\\
if (required) {\\
ERR_PRINT_ONCE("Required virtual method " + get_class() + "::" + #m_name + " must be overridden before calling.");\\
$RVOID\\
}\\
\\
return false;\\
}\\
_FORCE_INLINE_ bool _gdvirtual_##m_name##_overridden() const { \\
ScriptInstance *_script_instance = ((Object*)(this))->get_script_instance();\\
if (_script_instance) {\\
return _script_instance->has_method(_gdvirtual_##m_name##_sn);\\
}\\
if (unlikely(_get_extension() && !_gdvirtual_##m_name##_initialized)) {\\
/* TODO: C-style cast because GDNativeStringNamePtr'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, (GDNativeStringNamePtr)&_gdvirtual_##m_name##_sn) : (GDNativeExtensionClassCallVirtual) nullptr;\\
_gdvirtual_##m_name##_initialized = true;\\
}\\
if (_gdvirtual_##m_name) {\\
return true;\\
}\\
return false;\\
}\\
\\
_FORCE_INLINE_ static MethodInfo _gdvirtual_##m_name##_get_method_info() { \\
MethodInfo method_info;\\
method_info.name = #m_name;\\
method_info.flags = METHOD_FLAG_VIRTUAL;\\
$FILL_METHOD_INFO\\
return method_info;\\
}
"""
def generate_version(argcount, const=False, returns=False):
s = proto
sproto = str(argcount)
method_info = ""
if returns:
sproto += "R"
s = s.replace("$RET", "m_ret, ")
s = s.replace("$RVOID", "(void)r_ret;") # If required, may lead to uninitialized errors
s = s.replace("$CALLPTRRETDEF", "PtrToArg<m_ret>::EncodeT ret;")
method_info += "\tmethod_info.return_val = GetTypeInfo<m_ret>::get_class_info();\\\n"
else:
s = s.replace("$RET", "")
s = s.replace("$RVOID", "")
s = s.replace("$CALLPTRRETDEF", "")
if const:
sproto += "C"
s = s.replace("$CONST", "const")
method_info += "\tmethod_info.flags|=METHOD_FLAG_CONST;\\\n"
else:
s = s.replace("$CONST", "")
s = s.replace("$VER", sproto)
argtext = ""
callargtext = ""
callsiargs = ""
callsiargptrs = ""
callptrargsptr = ""
if argcount > 0:
argtext += ", "
callsiargs = "Variant vargs[" + str(argcount) + "]={"
callsiargptrs = "\t\tconst Variant *vargptrs[" + str(argcount) + "]={"
callptrargsptr = "\t\tGDNativeConstTypePtr argptrs[" + str(argcount) + "]={"
callptrargs = ""
for i in range(argcount):
if i > 0:
argtext += ", "
callargtext += ", "
callsiargs += ", "
callsiargptrs += ", "
callptrargs += "\t\t"
callptrargsptr += ", "
argtext += "m_type" + str(i + 1)
callargtext += "m_type" + str(i + 1) + " arg" + str(i + 1)
callsiargs += "Variant(arg" + str(i + 1) + ")"
callsiargptrs += "&vargs[" + str(i) + "]"
callptrargs += (
"PtrToArg<m_type" + str(i + 1) + ">::EncodeT argval" + str(i + 1) + " = arg" + str(i + 1) + ";\\\n"
)
callptrargsptr += "&argval" + str(i + 1)
method_info += "\tmethod_info.arguments.push_back(GetTypeInfo<m_type" + str(i + 1) + ">::get_class_info());\\\n"
if argcount:
callsiargs += "};\\\n"
callsiargptrs += "};\\\n"
s = s.replace("$CALLSIARGS", callsiargs + callsiargptrs)
s = s.replace("$CALLSIARGPASS", "(const Variant **)vargptrs," + str(argcount))
callptrargsptr += "};\\\n"
s = s.replace("$CALLPTRARGS", callptrargs + callptrargsptr)
s = s.replace("$CALLPTRARGPASS", "reinterpret_cast<GDNativeConstTypePtr*>(argptrs)")
else:
s = s.replace("$CALLSIARGS", "")
s = s.replace("$CALLSIARGPASS", "nullptr, 0")
s = s.replace("$CALLPTRARGS", "")
s = s.replace("$CALLPTRARGPASS", "nullptr")
if returns:
if argcount > 0:
callargtext += ","
callargtext += " m_ret& r_ret"
s = s.replace("$CALLSIBEGIN", "Variant ret = ")
s = s.replace("$CALLSIRET", "r_ret = VariantCaster<m_ret>::cast(ret);")
s = s.replace("$CALLPTRRETPASS", "&ret")
s = s.replace("$CALLPTRRET", "r_ret = (m_ret)ret;")
else:
s = s.replace("$CALLSIBEGIN", "")
s = s.replace("$CALLSIRET", "")
s = s.replace("$CALLPTRRETPASS", "nullptr")
s = s.replace("$CALLPTRRET", "")
s = s.replace("$ARG", argtext)
s = s.replace("$CALLARGS", callargtext)
s = s.replace("$FILL_METHOD_INFO", method_info)
return s
def run(target, source, env):
max_versions = 12
txt = """
#ifndef GDVIRTUAL_GEN_H
#define GDVIRTUAL_GEN_H
"""
for i in range(max_versions + 1):
txt += "/* " + str(i) + " Arguments */\n\n"
txt += generate_version(i, False, False)
txt += generate_version(i, False, True)
txt += generate_version(i, True, False)
txt += generate_version(i, True, True)
txt += "#endif"
with open(target[0], "w") as f:
f.write(txt)
if __name__ == "__main__":
from platform_methods import subprocess_main
subprocess_main(globals())
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