TmpMenu/scripts/natives_gen.py

354 lines
11 KiB
Python

# working dir: scripts
# python ./natives_gen.py
import os
natives_hpp = open("../src/natives.hpp", "r")
cpp_print_buf = ""
hpp_print_buf = ""
hpp_lua_native_wrappers_print_buf = ""
def print_cpp(text):
global cpp_print_buf
cpp_print_buf += text + "\n"
def print_hpp(text):
global hpp_print_buf
hpp_print_buf += text + "\n"
class Arg:
def __init__(self, name, type_):
self.name = name
self.type_ = type_.replace("BOOL", "bool").replace("Any*", "uintptr_t")
if self.type_ == "uintptr_t":
self.is_any_ptr = True
else:
self.is_any_ptr = False
if self.type_ == "const char*":
self.type_ = self.type_.replace("const char*", "sol::stack_object")
self.is_string = True
else:
self.is_string = False
self.is_pointer_arg = "*" in self.type_ and "const char" not in self.type_
self.type_no_star = self.type_.replace("*", "")
def __str__(self) -> str:
return str(self.type_) + " " + str(self.name)
class NativeFunc:
def __init__(self, namespace, lua_name, cpp_name, args, return_type):
self.namespace = namespace
self.lua_name = lua_name
self.cpp_name = cpp_name
self.args = args
self.return_type = return_type.replace("BOOL", "bool").replace("Any*", "uintptr_t")
self.out_params = []
if self.return_type != "void":
retvalArg = Arg("retval", self.return_type)
# Any* case: this is incorrect but
# we'd need a custom lua usertype and write code for it inside the native function wrappers,
# it also only affect some of the DATAFILE natives.
retvalArg.is_pointer_arg = False
self.out_params.append(retvalArg)
for arg in self.args:
if arg.is_pointer_arg:
self.out_params.append(arg)
def __str__(self) -> str:
s = ""
returning_multiple_values = False
tuple_type = ""
fixed_return = self.return_type
if len(self.out_params) > 1:
fixed_return = "std::tuple<"
for out_param in self.out_params:
if out_param.is_pointer_arg:
fixed_return += out_param.type_no_star + ", "
else:
fixed_return += ("const char*" if out_param.is_string else out_param.type_) + ", "
fixed_return = fixed_return[:-2] + ">"
returning_multiple_values = True
tuple_type = fixed_return
elif len(self.out_params) == 1:
if self.out_params[0].is_pointer_arg:
fixed_return = self.out_params[0].type_no_star
else:
fixed_return = ("const char*" if self.out_params[0].is_string else self.out_params[0].type_)
fixed_params = ""
if len(self.args) > 0:
for arg in self.args:
if not arg.is_pointer_arg:
fixed_params += arg.type_ + " " + arg.name + ", "
else:
fixed_params += arg.type_no_star + " " + arg.name + ", "
fixed_params = fixed_params[:-2]
s += (
fixed_return
+ " "
+ "LUA_NATIVE_"
+ self.namespace
+ "_"
+ self.lua_name
+ "("
+ fixed_params
+ ")"
)
s += "\n"
s += "\t{\n"
if self.cpp_name == "ADD_OWNED_EXPLOSION":
s+= "\t\tbig::explosion_anti_cheat_bypass::apply();\n\n"
call_native = "\t\t"
if len(self.out_params) > 0:
if returning_multiple_values:
tuple_declaration = tuple_type + " return_values;"
s += "\t\t" + tuple_declaration + "\n"
if self.return_type != "void":
call_native += "std::get<0>(return_values) = "
if self.return_type == "bool":
call_native += "(bool)"
elif self.return_type != "void":
call_native += "auto retval = "
if self.return_type == "bool":
call_native += "(bool)"
call_native += self.namespace + "::" + self.cpp_name + "("
else:
call_native += self.namespace + "::" + self.cpp_name + "("
if len(self.args) > 0:
for arg in self.args:
if arg.is_any_ptr:
call_native += "(Any*)"
if arg.is_pointer_arg:
if arg.type_ == "bool*":
call_native += "(BOOL*)"
call_native += "&"
if arg.is_string:
call_native += f'{arg.name}.is<const char*>() ? {arg.name}.as<const char*>() : nullptr, '
else:
call_native += arg.name + ", "
call_native = call_native[:-2]
call_native += ");"
s += call_native
if self.cpp_name == "ADD_OWNED_EXPLOSION":
s+= "\n\n\t\tbig::explosion_anti_cheat_bypass::restore();"
if returning_multiple_values:
assign_return_values = "\n"
if self.return_type != "void":
i = 1
else:
i = 0
for arg in self.args:
if arg.is_pointer_arg:
assign_return_values += (
"\t\tstd::get<"
+ str(i)
+ ">(return_values) = "
+ arg.name
+ ";\n"
)
i += 1
s += assign_return_values
return_statement = ""
if len(self.out_params) > 0:
if returning_multiple_values:
return_statement = "return return_values;"
elif self.return_type != "void":
if self.return_type == "uintptr_t":
return_statement = "return (uintptr_t)retval;"
else:
return_statement = "return retval;"
else:
for arg in self.args:
if arg.is_pointer_arg:
return_statement = "return " + arg.name + ";"
s += "\n\t\t" + return_statement
s += "\n\t}"
return s
def get_natives_func_from_natives_hpp_file(natives_hpp):
functions_per_namespaces = {}
current_namespace = ""
start_parsing = False
for line in natives_hpp.readlines():
if "namespace SYSTEM" not in line and not start_parsing:
continue
else:
start_parsing = True
if not start_parsing:
continue
if "namespace " in line:
current_namespace = line.replace("namespace ", "").strip()
functions_per_namespaces[current_namespace] = []
elif "FORCEINLINE constexpr" in line:
line = line.replace("FORCEINLINE constexpr", "")
words = line.split()
# remove NATIVE_DECL from the words array
words.pop(0)
func_name = ""
for word in words:
if "(" in word:
if func_name == "":
func_name = word.split("(")[0]
continue
# Sol somehow choke on this, terrible software
if func_name == "DRAW_TEXTURED_POLY_WITH_THREE_COLOURS":
continue
args = []
args_start = line.split("(")[1]
if args_start[0] == ")":
# no args
pass
else:
args_str = args_start.split(")")[0]
i = 0
for arg in args_str.split(","):
arg_type = arg[: arg.rfind(" ")].strip()
arg_name = arg[arg.rfind(" ") :].strip()
args.append(Arg(arg_name, arg_type))
i += 1
return_type = (
line[: line.find(func_name)].replace("NATIVE_DECL", "").strip()
)
lua_name = func_name
if lua_name.startswith('_'):
lua_name = lua_name.removeprefix("_")
lua_name = lua_name + "_"
native_func = NativeFunc(current_namespace, lua_name, func_name, args, return_type)
functions_per_namespaces[current_namespace].append(native_func)
return functions_per_namespaces
functions_per_namespaces = get_natives_func_from_natives_hpp_file(natives_hpp)
def generate_native_binding_cpp_and_hpp_files(functions_per_namespaces):
generated_function_name = "void init_native_binding(sol::state& L)"
print_hpp("#pragma once")
# print_hpp('#include "lua/sol.hpp"')
print_hpp("")
print_hpp("namespace lua::native")
print_hpp("{")
print_hpp("\t" + generated_function_name + ";")
print_hpp("")
for namespace_name, native_funcs in functions_per_namespaces.items():
print_hpp("\t" + "void init_native_binding_" + namespace_name + "(sol::state& L);")
print_hpp("}")
print_cpp('#include "lua_native_binding.hpp"')
print_cpp("")
print_cpp("namespace lua::native")
print_cpp("{")
i = 0
for namespace_name, native_funcs in functions_per_namespaces.items():
file_name_cpp = "../src/lua/natives/lua_native_binding_" + namespace_name + ".cpp"
if os.path.exists(file_name_cpp):
os.remove(file_name_cpp)
f = open(file_name_cpp, "a")
file_buffer = ""
file_buffer += '#include "lua_native_binding.hpp"\n'
file_buffer += '#include "natives.hpp"\n'
if namespace_name == "FIRE":
file_buffer += '#include "util/explosion_anti_cheat_bypass.hpp"\n'
file_buffer += "\n"
file_buffer += "namespace lua::native\n"
file_buffer += "{\n"
for native_func in native_funcs:
file_buffer += "\tstatic " + str(native_func) + "\n\n"
file_buffer += "\t" + "void init_native_binding_" + namespace_name + "(sol::state& L)\n"
file_buffer += "\t{\n"
file_buffer += "\t\tauto " + namespace_name + ' = L["' + namespace_name + '"].get_or_create<sol::table>();\n'
for native_func in native_funcs:
i += 1
file_buffer += "\t\t"+ namespace_name+ '.set_function("'+ native_func.lua_name+ '", '+ "LUA_NATIVE_"+ native_func.namespace+ "_"+ native_func.lua_name+ ");\n"
file_buffer+= "\t}\n"
file_buffer+= "}\n"
f.write(file_buffer)
f.close()
print_cpp("\t" + generated_function_name)
print_cpp("\t{")
for namespace_name, native_funcs in functions_per_namespaces.items():
# call each binding functions inside generated_function_name
print_cpp("\t\t" + "init_native_binding_" + namespace_name + "(L);")
print_cpp("\t}")
print_cpp("}")
print(f"Wrote binding for {i} native functions")
generate_native_binding_cpp_and_hpp_files(functions_per_namespaces)
def write_cpp_code(cpp_print_buf):
file_name = "../src/lua/natives/lua_native_binding.cpp"
if os.path.exists(file_name):
os.remove(file_name)
f = open(file_name, "a")
f.write(cpp_print_buf)
f.close()
def write_hpp_code(hpp_print_buf):
file_name = "../src/lua/natives/lua_native_binding.hpp"
if os.path.exists(file_name):
os.remove(file_name)
f = open(file_name, "a")
f.write(hpp_print_buf)
f.close()
write_cpp_code(cpp_print_buf)
write_hpp_code(hpp_print_buf)