1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
|
#!/usr/bin/python3
import argparse
import code
import json
import os
import readline
import signal
import sys
C_STRUCT = ['typedef struct XXX {', '}XXX;']
HEADER_GUARD = ['\n#ifndef _XXX_H\n#define _XXX_H\n', '#endif //end of inclusion guard\n\n']
EXTERN_C = ['#ifdef __cplusplus\nextern "C" {\n#endif\n', '#ifdef __cplusplus\n}\n#endif //end of extern c\n']
BEGIN_NOTE = "//Generated Automatically by luatablegen."
HEADER_LIST = ['#include "HHHlua.h"\n', '#include "HHHlauxlib.h"\n',
'#include "HHHlualib.h"\n', '#include <inttypes.h>\n',
'#include <stdbool.h>\n']
CONVERT = ['static XXX* convert_XXX (lua_State* __ls, int index) {\n',
'\tXXX* dummy = (XXX*)lua_touserdata(__ls, index);\n',
'\tif (dummy == NULL) printf("XXX:bad user data type.\\n");\n',
'\treturn dummy;\n}\n']
CHECK = ['static XXX* check_XXX(lua_State* __ls, int index) {\n',
'\tXXX* dummy;\n',
'\tluaL_checktype(__ls, index, LUA_TUSERDATA);\n'
'\tdummy = (XXX*)luaL_checkudata(__ls, index, "XXX");\n',
'\tif (dummy == NULL) printf("XXX:bad user data type.\\n");\n',
'\treturn dummy;\n}\n']
PUSH_SELF = [ 'XXX* push_XXX(lua_State* __ls) {\n',
'\tlua_checkstack(__ls, 1);\n',
'\tXXX* dummy = lua_newuserdata(__ls, sizeof(XXX));\n',
'\tluaL_getmetatable(__ls, "XXX");\n',
'\tlua_setmetatable(__ls, -2);\n',
'\treturn dummy;\n}\n']
PUSH_ARGS = ['int XXX_push_args(lua_State* __ls, XXX* _st) {\n',
'\tlua_checkstack(__ls, NNN);\n', '\treturn 0;\n}\n']
NEW = ['int new_XXX(lua_State* __ls) {\n', '\tlua_checkstack(__ls, NNN);\n',
'\tXXX* dummy = push_XXX(__ls);\n', '\treturn 1;\n}\n']
GETTER_GEN = ['static int getter_XXX_YYY(lua_State* __ls) {\n',
'\tXXX* dummy = check_XXX(__ls, 1);\n',
'\tlua_pop(__ls, -1);\n',
'\treturn 1;\n}\n']
SETTER_GEN = ['static int setter_XXX_YYY(lua_State* __ls) {\n',
'\tXXX* dummy = check_XXX(__ls, 1);\n',
'\tlua_settop(__ls, 1);\n',
'\treturn 1;\n}\n']
REGISTER_TABLE_METHODS = ['static const luaL_Reg XXX_methods[] = {\n',
'\t{0,0}\n};\n']
REGISTER_META = ['static const luaL_Reg XXX_meta[] = {\n',
'\t{0, 0}\n};\n']
TABLE_REGISTER = ['int XXX_register(lua_State* __ls) {\n',
'\tluaL_openlib(__ls, "XXX", XXX_methods, 0);\n',
'\tluaL_newmetatable(__ls, "XXX");\n',
'\tluaL_openlib(__ls, 0, XXX_meta, 0);\n',
'\tlua_pushliteral(__ls, "__index");\n',
'\tlua_pushvalue(__ls, -3);\n',
'\tlua_rawset(__ls, -3);\n',
'\tlua_pushliteral(__ls, "__metatable");\n',
'\tlua_pushvalue(__ls, -3);\n',
'\tlua_rawset(__ls, -3);\n',
'\tlua_pop(__ls, 1);\n',
'return 1;\n}\n']
SOURCE_FILE_NAME='XXX_luatablegen.c'
HEADER_FILE_NAME='XXX_luatablegen.h'
LUA_LIB = ["local wasm = {}\n\n", "return wasm\n"]
LUA_SETMETA_NEW = ["setmetatable(XXX, {__call =\n", "\tfunction(selfAAA)\n",
"\t\tlocal t = self.new(AAA)\n", "\t\treturn t\n\tend\n\t}\n)\n"]
def SigHandler_SIGINT(signum, frame):
print()
sys.exit(0)
def get_filename(filename):
if filename[-1] == "/":
c_source = filename + c_filename
else:
c_source = "/" + c_filename
class Argparser(object):
def __init__(self):
parser = argparse.ArgumentParser()
parser.add_argument("--out", type=str, help="output directory")
parser.add_argument("--tbg", type=str, help="the table gen file")
parser.add_argument("--pre", type=str, help="path to source code file to add after header guard/extern c")
parser.add_argument("--post", type=str, help="path to source code file to add before header guard/extern c end")
parser.add_argument("--luaheader", type=str, help="path to lua header files")
parser.add_argument("--dbg", action="store_true", help="debug", default=False)
parser.add_argument("--singlefile", action="store_true", help="should all the generated code be added to a single file", default=False)
parser.add_argument("--makemacro", action="store_true", help="generate a makefile containing all objects in a macro to be included by abother makefile", default=False)
parser.add_argument("--outfile", type=str, help="name of the output file if signlefile is set, ignored otherwise")
parser.add_argument("--headeraggr", type=str, help="header aggregate file name")
parser.add_argument("--lualibpath", type=str, help="where the lua module file will be placed")
parser.add_argument("--docpath", type=str, help="where the doc file will be placed")
self.args = parser.parse_args()
class TbgParser(object):
def __init__(self, argparser):
self.tbg_file = json.load(open(argparser.args.tbg))
self.argparser = argparser
def begin(self, c_source, struct_name, h_filename, is_source):
c_source.write("\n")
c_source.write("// automatically generated by luatablegen\n")
for header in HEADER_LIST:
if self.argparser.args.luaheader:
c_source.write(header.replace("HHH", self.argparser.args.luaheader+"/"))
else:
c_source.write(header.replace("HHH", ""))
if not is_source: c_source.write(HEADER_GUARD[0].replace("XXX", struct_name))
if not is_source: c_source.write(EXTERN_C[0])
if is_source: c_source.write("#include " + '"./' +h_filename+ '"\n')
c_source.write("\n")
if self.argparser.args.pre:
pre_file = open(self.argparser.args.pre)
for line in pre_file:
c_source.write(line)
pre_file.close()
c_source.write("\n")
def struct(self, c_source, field_names, field_types, struct_name):
c_source.write("typedef struct {\n")
for field_type, field_name in zip(field_types, field_names):
c_source.write("\t" + field_type + " " + field_name + ";\n")
c_source.write("}" +struct_name+ ";\n")
c_source.write("\n")
def convert(self, c_source, struct_name):
for line in CONVERT:
c_source.write(line.replace("XXX", struct_name))
c_source.write("\n")
def check(self, c_source, struct_name):
for line in CHECK:
c_source.write(line.replace("XXX", struct_name))
c_source.write("\n")
def push_self(self, c_source, struct_name):
for line in PUSH_SELF:
c_source.write(line.replace("XXX", struct_name))
c_source.write("\n")
def push_args(self, c_source, struct_name, field_names, lua_types):
dummy = str()
c_source.write(PUSH_ARGS[0].replace("XXX", struct_name))
c_source.write("\tlua_checkstack(__ls, " + repr(len(field_names)) + ");\n")
for field_name, lua_type in zip(field_names, lua_types):
if lua_type == "integer": dummy = "\tlua_pushinteger(__ls, _st->"+field_name+");\n"
elif lua_type == "lightuserdata": dummy = "\tlua_pushlightuserdata(__ls, _st->"+field_name+");\n"
elif lua_type == "number": dummy = "\tlua_pushnumber(__ls, _st->"+field_name+");\n"
elif lua_type == "string": dummy = "\tlua_pushstring(__ls, _st->"+field_name+");\n"
elif lua_type == "boolean": dummy = "\tlua_pushboolean(__ls, _st->"+field_name+");\n"
else:
print("bad lua_type entry in the json file")
sys.exit(1)
c_source.write(dummy)
dummy = str()
c_source.write(PUSH_ARGS[2])
c_source.write("\n")
def new(self, c_source, struct_name, field_types, field_names, lua_types):
dummy = str()
rev_counter = -len(field_types)
c_source.write(NEW[0].replace("XXX", struct_name))
c_source.write("\tlua_checkstack(__ls, " + repr(len(field_names)) + ");\n")
for lua_type, field_name, field_type in zip(lua_types, field_names, field_types):
if lua_type == "integer": dummy = "\t"+field_type +" "+field_name+" = "+"luaL_optinteger(__ls,"+repr(rev_counter)+",0);\n"
elif lua_type == "lightuserdata": dummy = "\t"+field_type +" "+field_name+" = "+"lua_touserdata(__ls,"+repr(rev_counter)+");\n"
elif lua_type == "number": pass
elif lua_type == "string":dummy = "\t"+field_type +" "+field_name+" = "+"lua_tostring(__ls,"+repr(rev_counter)+");\n"
elif lua_type == "boolean": pass
else:
print("bad lua_type entry in the json file")
sys.exit(1)
rev_counter += 1
c_source.write(dummy)
dummy = str()
c_source.write(NEW[2].replace("XXX", struct_name))
for field_name in field_names:
c_source.write("\tdummy->" + field_name + " = " + field_name + ";\n")
c_source.write(NEW[3].replace("XXX", struct_name))
c_source.write("\n")
def getter(self, c_source, struct_name, field_names, field_types, lua_types):
dummy = str()
for field_name, lua_type in zip(field_names, lua_types):
c_source.write(GETTER_GEN[0].replace("XXX", struct_name).replace("YYY", field_name))
c_source.write(GETTER_GEN[1].replace("XXX", struct_name))
c_source.write(GETTER_GEN[2])
if lua_type == "integer": dummy = "\tlua_pushinteger(__ls, dummy->"+field_name+");\n"
elif lua_type == "lightuserdata": dummy = "\tlua_pushlightuserdata(__ls, dummy->"+field_name+");\n"
elif lua_type == "number": dummy = "\tlua_pushnumber(__ls, dummy->"+field_name+");\n"
elif lua_type == "string": dummy = "\tlua_pushstring(__ls, dummy->"+field_name+");\n"
elif lua_type == "boolean": dummy = "\tlua_pushboolean(__ls, dummy->"+field_name+");\n"
else:
print("bad lua_type entry in the json file")
sys.exit(1)
c_source.write(dummy)
dummy = str()
c_source.write(GETTER_GEN[3])
c_source.write("\n")
def setter(self, c_source, struct_name, field_names, field_types, lua_types):
dummy = str()
for field_name, lua_type in zip(field_names, lua_types):
c_source.write(SETTER_GEN[0].replace("XXX", struct_name).replace("YYY", field_name))
c_source.write(SETTER_GEN[1].replace("XXX", struct_name))
if lua_type == "integer": dummy = "\tdummy->" + field_name + " = " + "luaL_checkinteger(__ls, 2);\n"
elif lua_type == "lightuserdata": dummy ="\tdummy->" + field_name + " = " + "luaL_checkudata(__ls, 2, "+'"'+field_name+"_t"+'"'+");\n"
elif lua_type == "number": dummy ="\tdummy->" + field_name + " = " + "luaL_checknumber(__ls, 2);\n"
elif lua_type == "string": dummy ="\tdummy->" + field_name + " = " + "luaL_checkstring(__ls, 2);\n"
elif lua_type == "boolean": pass
else:
print("bad lua_type entry in the json file")
sys.exit(1)
c_source.write(dummy)
dummy = str()
c_source.write(SETTER_GEN[2])
c_source.write(SETTER_GEN[3])
c_source.write("\n")
def gc(self):
pass
def tostring(self):
pass
def register_table_methods(self, c_source, struct_name, field_names):
c_source.write(REGISTER_TABLE_METHODS[0].replace("XXX", struct_name))
c_source.write('\t{"new", ' + "new_" + struct_name + "},\n")
for field_name in field_names:
c_source.write("\t{" + '"set_' + field_name + '"' + ", " + "setter_"+struct_name +"_"+ field_name + "},\n")
for field_name in field_names:
c_source.write("\t{" + '"' + field_name + '", ' + "getter_"+struct_name+"_"+field_name+"},\n")
c_source.write(REGISTER_TABLE_METHODS[1])
c_source.write("\n")
def register_table_meta(self, c_source, struct_name):
c_source.write(REGISTER_META[0].replace("XXX", struct_name))
c_source.write(REGISTER_META[1])
c_source.write("\n")
def register_table(self, c_source, struct_name):
for line in TABLE_REGISTER:
c_source.write(line.replace("XXX", struct_name))
def end(self, c_source, is_source):
if self.argparser.args.post:
c_source.write("\n")
post_file = open(self.argparser.args.post)
for line in post_file:
c_source.write(line)
post_file.clsoe()
c_source.write("\n")
if not is_source: c_source.write(EXTERN_C[1])
if not is_source: c_source.write(HEADER_GUARD[1])
c_source.write("\n")
def docgen_md(self, d_source, struct_name, field_names, field_types, lua_types):
d_source.write("## " + "__" + struct_name + "__" + ":\n")
d_source.write("\n")
d_source.write("### " + "_" + "getter fields" + "_" + ":\n")
for field_name,lua_type in zip(field_names, lua_types):
d_source.write(struct_name + ":" + field_name + "()" + " -- ")
if lua_type == "lightuserdata":
d_source.write("return type: " + field_name + "_t" + "<br/>" + "\n")
else:
d_source.write("return type: " + lua_type + "<br/>" + "\n")
d_source.write("\n")
d_source.write("### " + "_" + "setter fields" + "_" + ":\n")
for field_name,lua_type in zip(field_names, lua_types):
d_source.write("set_" + struct_name + ":" + field_name + "()" + " -- ")
if lua_type == "lightuserdata":
d_source.write("arg type: " + field_name + "_t" + "<br/>" + "\n")
else:
d_source.write("arg type: " + lua_type + "<br/>" + "\n")
d_source.write("\n")
d_source.write("### " + "_" + "constructors" + "_" + ":\n")
d_source.write(struct_name + ":new() -- needs all the args<br/>\n")
d_source.write(struct_name + "() -- lazy constructor<br/>\n")
d_source.write("\n")
d_source.write("\n")
def luagen(self):
l_source = open(self.argparser.args.lualibpath, "w")
l_source.write("-- automatically generated by luatablegen\n")
l_source.write(LUA_LIB[0])
for k, v in self.tbg_file.items():
struct_name = k
field_names = v['field_name']
field_types = v['field_type']
lua_types = v['lua_type']
methods = v['methods']
l_source.write(LUA_SETMETA_NEW[0].replace("XXX", struct_name))
arg_list_str = str()
for i in range(0, len(field_names)):
arg_list_str += ", arg" + repr(i)
l_source.write(LUA_SETMETA_NEW[1].replace("AAA", arg_list_str))
l_source.write(LUA_SETMETA_NEW[2].replace("AAA", arg_list_str[2:]))
l_source.write(LUA_SETMETA_NEW[3])
arg_list_str = str()
l_source.write("\n")
l_source.write(LUA_LIB[1])
def run(self):
header_aggr_list = []
table_reg_list = []
if self.argparser.args.singlefile:
c_source = open(self.argparser.args.outfile, "w")
if self.argparser.args.docpath:
d_source = open(self.argparser.args.docpath, "w")
d_source.write("The lazy constructors are inside wasm.lua.\n")
d_source.write("```lua\nlocal wasm = require(\"wasm\")\n```\n")
for k, v in self.tbg_file.items():
struct_name = k
field_names = v['field_name']
field_types = v['field_type']
lua_types = v['lua_type']
methods = v['methods']
if not self.argparser.args.singlefile:
c_filename = struct_name + "_tablegen.c"
h_filename = struct_name + "_tablegen.h"
if self.argparser.args.out[-1] == "/":
c_source = open(self.argparser.args.out + c_filename, "w")
header_aggr_list.append("./" + h_filename)
h_source = open(self.argparser.args.out + h_filename, "w")
else:
c_source = open(self.argparser.args.out + "/" + c_filename, "w")
header_aggr_list.append("./" + h_filename)
h_source = open(self.argparser.args.out + "/" + h_filename, "w")
# source file
self.begin(c_source, struct_name, h_filename, True)
self.convert(c_source, struct_name)
self.check(c_source, struct_name)
self.push_self(c_source, struct_name)
self.push_args(c_source, struct_name, field_names, lua_types)
self.new(c_source, struct_name, field_types, field_names, lua_types)
self.getter(c_source, struct_name, field_names, field_types, lua_types)
self.setter(c_source, struct_name, field_names, field_types, lua_types)
self.register_table_methods(c_source, struct_name, field_names)
self.register_table_meta(c_source, struct_name)
self.register_table(c_source, struct_name)
self.end(c_source, True)
if not self.argparser.args.singlefile: c_source.close()
# header file
self.begin(h_source, struct_name, h_filename, False)
h_source.write(CONVERT[0].replace("XXX", struct_name).replace(" {\n", ";\n"))
h_source.write(CHECK[0].replace("XXX", struct_name).replace(" {\n", ";\n"))
h_source.write(PUSH_SELF[0].replace("XXX", struct_name).replace(" {\n", ";\n"))
h_source.write(PUSH_ARGS[0].replace("XXX", struct_name).replace(" {\n", ";\n"))
h_source.write(NEW[0].replace("XXX", struct_name).replace(" {\n", ";\n"))
for field_name, lua_type in zip(field_names, lua_types):
h_source.write(GETTER_GEN[0].replace("XXX", struct_name).replace("YYY", field_name).replace(" {\n", ";\n"))
for field_name, lua_type in zip(field_names, lua_types):
h_source.write(SETTER_GEN[0].replace("XXX", struct_name).replace("YYY", field_name).replace(" {\n", ";\n"))
table_reg_list.append(struct_name + "_register(__ls);\n")
h_source.write(TABLE_REGISTER[0].replace("XXX", struct_name).replace(" {\n", ";\n"))
self.end(h_source, False)
# docs
if self.argparser.args.docpath:
self.docgen_md(d_source, struct_name, field_names, field_types, lua_types)
# header aggregate
if self.argparser.args.headeraggr:
name = self.argparser.args.headeraggr
dummy = name[name.rfind("/"):]
aggr_header = open(self.argparser.args.headeraggr.replace(".h", ".c"), "w")
aggr_header_h = open(self.argparser.args.headeraggr, "w")
aggr_header.write("// automatically generated by luatablegen\n")
aggr_header_h.write("// automatically generated by luatablegen\n")
aggr_header_h.write(HEADER_GUARD[0].replace("XXX", "WASM_TABLES_AGGR"))
aggr_header_h.write(EXTERN_C[0])
aggr_header.write("\n")
for item in header_aggr_list:
aggr_header.write("#include " + '"' + item + '"\n')
aggr_header_h.write("#include " + '"' + item + '"\n')
aggr_header.write("#include " + '".' + dummy + '"\n')
aggr_header.write("\n")
aggr_header.write("void reg_tablegen_tables(lua_State* __ls) {\n")
aggr_header_h.write("void reg_tablegen_tables(lua_State* __ls);\n")
for func_sig in table_reg_list:
aggr_header.write("\t" + func_sig)
aggr_header.write("\t" + "lua_pop(__ls, 1);\n")
aggr_header.write("}\n")
aggr_header_h.write(EXTERN_C[1])
aggr_header_h.write(HEADER_GUARD[1])
aggr_header.write("\n")
if self.argparser.args.makemacro:
if self.argparser.args.out[-1] == "/":
m_source = open(self.argparser.args.out + "tablegen.mk", "w")
else:
m_source = open(self.argparser.args.out + "/" + "tablegen.mk", "w")
# generate lua module
self.luagen()
if self.argparser.args.docpath:
d_source.write("_automatically generated by luatablegen._<br/>\n")
# write code here
def premain(argparser):
signal.signal(signal.SIGINT, SigHandler_SIGINT)
#here
parser = TbgParser(argparser)
parser.run()
def main():
argparser = Argparser()
if argparser.args.dbg:
try:
premain(argparser)
except Exception as e:
print(e.__doc__)
if e.message: print(e.message)
variables = globals().copy()
variables.update(locals())
shell = code.InteractiveConsole(variables)
shell.interact(banner="DEBUG REPL")
else:
premain(argparser)
if __name__ == "__main__":
main()
|
