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lua-l archive |
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in nested function parsing,
static void body (LexState *ls, expdesc *e, int needself, int line)
{
/* body -> `(' parlist `)' chunk END */ FuncState new_fs; open_func(ls, &new_fs); =========> start of new child function new_fs.f->linedefined = line; checknext(ls, '('); if (needself) { new_localvarliteral(ls, "self", 0); adjustlocalvars(ls, 1); } parlist(ls); checknext(ls, ')'); chunk(ls); =========> this will cause GC, so the opend proto would collected because it is not added to parent's p(added in pushclosure) new_fs.f->lastlinedefined = ls->linenumber; check_match(ls, TK_END, TK_FUNCTION, line); close_func(ls); =========> end of this function pushclosure(ls, &new_fs, e); =========> add to parent function's p } chunk GC call trace
#0 singlestep (L=0x804e4b0) at lgc.c:560 #1 0x1594c8f0 in luaC_step (L=0x804e4b0) at lgc.c:620 #2 0x159599e3 in luaX_newstring (ls=0x3fffa520, str=0x8057508 "userDatatFileIndexder\"lua\"", l=8) at llex.c:123 #3 0x1595af1d in llex (ls=0x3fffa520, seminfo=0x3fffa530) at llex.c:428 #4 0x1595affd in luaX_next (ls=0x3fffa520) at llex.c:455 #5 0x1594d511 in testnext (ls=0x3fffa520, c=44) at lparser.c:83 #6 0x1594ea16 in parlist (ls=0x3fffa520) at lparser.c:569 #7 0x1594eb52 in body (ls=0x3fffa520, e=0x3fffa220, needself=0, line=49) at lparser.c:595 #8 0x15950348 in funcstat (ls=0x3fffa520, line=49) at lparser.c:1231 #9 0x1595061f in statement (ls=0x3fffa520) at lparser.c:1310 #10 0x15950711 in chunk (ls=0x3fffa520) at lparser.c:1343 #11 0x1594e403 in luaY_parser (L=0x804e4b0, z=0x3fffa740, buff=0x3fffa6f4, name=0x8057350 "@/usr/lib/lua_scripts/enables/webbbs_mydrivers.lua") at lparser.c:392 #12 0x1594a43b in f_parser (L=0x804e4b0, ud=0x3fffa6f0) at ldo.c:497 #13 0x159493ea in luaD_rawrunprotected (L=0x804e4b0, f=0x1594a3ca <f_parser>, ud=0x3fffa6f0) at ldo.c:118 #14 0x1594a331 in luaD_pcall (L=0x804e4b0, func=0x1594a3ca <f_parser>, u=0x3fffa6f0, old_top=24, ef=0) at ldo.c:463 #15 0x1594a534 in luaD_protectedparser (L=0x804e4b0, z=0x3fffa740, name=0x8057350 "@/usr/lib/lua_scripts/enables/webbbs_mydrivers.lua") at ldo.c:513 #16 0x159473ce in lua_load (L=0x804e4b0, reader=0x15957301 <getF>, data=""> 2011-11-17
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