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progress on twnlua bindgen

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This commit is contained in:
veclavtalica
2025-01-09 21:47:08 +03:00
parent 8c401eda75
commit f3848d2d52
3 changed files with 66 additions and 9 deletions
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26
apps/twnlua/bindgen.py
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@ -31,6 +31,20 @@ def default(parameter):
raise BaseException("Unhandled default value of type '%s'" % parameter["type"])
def to_table(typedesc, variable, indent = 0):
binding = ' ' * indent + "lua_newtable(L);\n"
for field in typedesc["fields"]:
if field["type"] == "float":
binding += ' ' * indent + "lua_pushnumber(L, (double)(%s));\n" % (variable + ".%s" % field["name"])
elif field["type"] in api["types"]:
binding += to_table(api["types"][field["type"]], variable + ".%s" % field["name"], indent + 4)
else:
raise BaseException("Unhandled return field type '%s'" % (field["type"]))
binding += ' ' * indent + "lua_setfield(L, -2, \"%s\");\n" % field["name"]
# binding += ' ' * indent + "lua_pop(L, 1);\n"
return binding
print('#include "twn_game_api.h"\n')
print('#define STB_DS_IMPLEMENTATION') # TODO: reuse implementation from the engine
print('#include <stb_ds.h>')
@ -115,8 +129,15 @@ for procedure, procedure_desc in api["procedures"].items():
binding += " lua_pushboolean(L, (int)%s(%s));\n" % (procedure, ", ".join(param["name"] for param in procedure_desc["params"]))
elif procedure_desc["return"] == "float":
binding += " lua_pushnumber(L, (double)%s(%s));\n" % (procedure, ", ".join(param["name"] for param in procedure_desc["params"]))
elif procedure_desc["return"] == "char *":
binding += " lua_pushstring(L, %s(%s));\n" % (procedure, ", ".join(param["name"] for param in procedure_desc["params"]))
elif type(procedure_desc["return"]) is dict or procedure_desc["return"] in api["types"]:
# TODO: handle enums
type_desc = procedure_desc["return"] if type(procedure_desc["return"]) is dict else api["types"][procedure_desc["return"]]
binding += " %s result = %s(%s);\n" % (type_desc["c_type"], procedure, ", ".join(param["name"] for param in procedure_desc["params"]))
binding += to_table(type_desc, "result", 4)
else:
binding += " lua_warning(L, \"Unhandled return type!\", 0);\n"
raise BaseException("Unhandled return type '%s'" % (procedure_desc["return"]))
binding += " return 1;\n}\n"
else:
binding += " %s(%s);\n" % (procedure, ", ".join(param["name"] for param in procedure_desc["params"]))
@ -132,9 +153,8 @@ for module in modules:
loader += " lua_newtable(L);\n"
for procedure, procedure_desc in api["procedures"].items():
if procedure_desc["module"] == module:
loader += " lua_pushstring(L, \"%s\");\n" % procedure_desc["symbol"]
loader += " lua_pushcfunction(L, binding_%s);\n" % procedure
loader += " lua_settable(L, -3);\n"
loader += " lua_setfield(L, -2, \"%s\");\n" % procedure_desc["symbol"]
loader += " lua_setglobal(L, \"%s\");\n" % module
loader += "}"