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"""Functions used to generate source files during build time
All such functions are invoked in a subprocess on Windows to prevent build flakiness.
"""
import json
from platform_methods import subprocess_main
def _spaced(e):
return e if e[-1] == "*" else e + " "
def _build_gdnative_api_struct_header(api):
out = [
"/* THIS FILE IS GENERATED DO NOT EDIT */",
"#ifndef GODOT_GDNATIVE_API_STRUCT_H",
"#define GODOT_GDNATIVE_API_STRUCT_H",
"",
"#include <gdnative/gdnative.h>",
"#include <android/godot_android.h>",
"#include <nativescript/godot_nativescript.h>",
"#include <pluginscript/godot_pluginscript.h>",
"#include <videodecoder/godot_videodecoder.h>",
"#include <text/godot_text.h>",
"",
"#ifdef __cplusplus",
'extern "C" {',
"#endif",
"",
"enum GDNATIVE_API_TYPES {",
"\tGDNATIVE_" + api["core"]["type"] + ",",
]
for ext in api["extensions"]:
out += ["\tGDNATIVE_EXT_" + ext["type"] + ","]
out += ["};", ""]
def generate_extension_struct(name, ext, include_version=True):
ret_val = []
if ext["next"]:
ret_val += generate_extension_struct(name, ext["next"])
ret_val += [
"typedef struct godot_gdnative_ext_"
+ name
+ ("" if not include_version else ("_{0}_{1}".format(ext["version"]["major"], ext["version"]["minor"])))
+ "_api_struct {",
"\tunsigned int type;",
"\tgodot_gdnative_api_version version;",
"\tconst godot_gdnative_api_struct *next;",
]
for funcdef in ext["api"]:
args = ", ".join(["%s%s" % (_spaced(t), n) for t, n in funcdef["arguments"]])
ret_val.append("\t%s(*%s)(%s);" % (_spaced(funcdef["return_type"]), funcdef["name"], args))
ret_val += [
"} godot_gdnative_ext_"
+ name
+ ("" if not include_version else ("_{0}_{1}".format(ext["version"]["major"], ext["version"]["minor"])))
+ "_api_struct;",
"",
]
return ret_val
def generate_core_extension_struct(core):
ret_val = []
if core["next"]:
ret_val += generate_core_extension_struct(core["next"])
ret_val += [
"typedef struct godot_gdnative_core_"
+ "{0}_{1}".format(core["version"]["major"], core["version"]["minor"])
+ "_api_struct {",
"\tunsigned int type;",
"\tgodot_gdnative_api_version version;",
"\tconst godot_gdnative_api_struct *next;",
]
for funcdef in core["api"]:
args = ", ".join(["%s%s" % (_spaced(t), n) for t, n in funcdef["arguments"]])
ret_val.append("\t%s(*%s)(%s);" % (_spaced(funcdef["return_type"]), funcdef["name"], args))
ret_val += [
"} godot_gdnative_core_"
+ "{0}_{1}".format(core["version"]["major"], core["version"]["minor"])
+ "_api_struct;",
"",
]
return ret_val
for ext in api["extensions"]:
name = ext["name"]
out += generate_extension_struct(name, ext, False)
if api["core"]["next"]:
out += generate_core_extension_struct(api["core"]["next"])
out += [
"typedef struct godot_gdnative_core_api_struct {",
"\tunsigned int type;",
"\tgodot_gdnative_api_version version;",
"\tconst godot_gdnative_api_struct *next;",
"\tunsigned int num_extensions;",
"\tconst godot_gdnative_api_struct **extensions;",
]
for funcdef in api["core"]["api"]:
args = ", ".join(["%s%s" % (_spaced(t), n) for t, n in funcdef["arguments"]])
out.append("\t%s(*%s)(%s);" % (_spaced(funcdef["return_type"]), funcdef["name"], args))
out += [
"} godot_gdnative_core_api_struct;",
"",
"#ifdef __cplusplus",
"}",
"#endif",
"",
"#endif // GODOT_GDNATIVE_API_STRUCT_H",
"",
]
return "\n".join(out)
def _build_gdnative_api_struct_source(api):
out = ["/* THIS FILE IS GENERATED DO NOT EDIT */", "", "#include <gdnative_api_struct.gen.h>", ""]
def get_extension_struct_name(name, ext, include_version=True):
return (
"godot_gdnative_ext_"
+ name
+ ("" if not include_version else ("_{0}_{1}".format(ext["version"]["major"], ext["version"]["minor"])))
+ "_api_struct"
)
def get_extension_struct_instance_name(name, ext, include_version=True):
return (
"api_extension_"
+ name
+ ("" if not include_version else ("_{0}_{1}".format(ext["version"]["major"], ext["version"]["minor"])))
+ "_struct"
)
def get_extension_struct_definition(name, ext, include_version=True):
ret_val = []
if ext["next"]:
ret_val += get_extension_struct_definition(name, ext["next"])
ret_val += [
"extern const "
+ get_extension_struct_name(name, ext, include_version)
+ " "
+ get_extension_struct_instance_name(name, ext, include_version)
+ " = {",
"\tGDNATIVE_EXT_" + ext["type"] + ",",
"\t{" + str(ext["version"]["major"]) + ", " + str(ext["version"]["minor"]) + "},",
"\t"
+ (
"nullptr"
if not ext["next"]
else ("(const godot_gdnative_api_struct *)&" + get_extension_struct_instance_name(name, ext["next"]))
)
+ ",",
]
for funcdef in ext["api"]:
ret_val.append("\t%s," % funcdef["name"])
ret_val += ["};\n"]
return ret_val
def get_core_struct_definition(core):
ret_val = []
if core["next"]:
ret_val += get_core_struct_definition(core["next"])
ret_val += [
"extern const godot_gdnative_core_"
+ "{0}_{1}_api_struct api_{0}_{1}".format(core["version"]["major"], core["version"]["minor"])
+ " = {",
"\tGDNATIVE_" + core["type"] + ",",
"\t{" + str(core["version"]["major"]) + ", " + str(core["version"]["minor"]) + "},",
"\t"
+ (
"nullptr"
if not core["next"]
else (
"(const godot_gdnative_api_struct *)& api_{0}_{1}".format(
core["next"]["version"]["major"], core["next"]["version"]["minor"]
)
)
)
+ ",",
]
for funcdef in core["api"]:
ret_val.append("\t%s," % funcdef["name"])
ret_val += ["};\n"]
return ret_val
for ext in api["extensions"]:
name = ext["name"]
out += get_extension_struct_definition(name, ext, False)
out += ["", "const godot_gdnative_api_struct *gdnative_extensions_pointers[] = {"]
for ext in api["extensions"]:
name = ext["name"]
out += ["\t(godot_gdnative_api_struct *)&api_extension_" + name + "_struct,"]
out += ["};\n"]
if api["core"]["next"]:
out += get_core_struct_definition(api["core"]["next"])
out += [
"extern const godot_gdnative_core_api_struct api_struct = {",
"\tGDNATIVE_" + api["core"]["type"] + ",",
"\t{" + str(api["core"]["version"]["major"]) + ", " + str(api["core"]["version"]["minor"]) + "},",
"\t"
+ (
"nullptr, "
if not api["core"]["next"]
else (
"(const godot_gdnative_api_struct *)& api_{0}_{1},".format(
api["core"]["next"]["version"]["major"], api["core"]["next"]["version"]["minor"]
)
)
),
"\t" + str(len(api["extensions"])) + ",",
"\tgdnative_extensions_pointers,",
]
for funcdef in api["core"]["api"]:
out.append("\t%s," % funcdef["name"])
out.append("};\n")
return "\n".join(out)
def build_gdnative_api_struct(target, source, env):
with open(source[0], "r") as fd:
api = json.load(fd)
header, source = target
with open(header, "w") as fd:
fd.write(_build_gdnative_api_struct_header(api))
with open(source, "w") as fd:
fd.write(_build_gdnative_api_struct_source(api))
if __name__ == "__main__":
subprocess_main(globals())
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