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annotate third_party/luajit/src/lj_lib.h @ 279:b3b547563ec7

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Add Google connector service and agent wiki Implement the C/Seobeo Google Drive and Gmail connector with encrypted OAuth storage, Zenbu authentication, browser testing, AI tool discovery, chunked HTTP decoding, and Bazel coverage. Consolidate repository guidance into progressive wiki documentation and enforce arena-first allocation for new first-party C code. Co-authored-by: Copilot <[email protected]> Copilot-Session: 84c338fd-0939-4bb3-b7f3-1062eb213e5d
author MrJuneJune <me@mrjunejune.com>
date Mon, 17 Aug 2026 22:22:36 -0700
parents 94705b5986b3
children
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178
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1 /*
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2 ** Library function support.
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3 ** Copyright (C) 2005-2023 Mike Pall. See Copyright Notice in luajit.h
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4 */
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5
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6 #ifndef _LJ_LIB_H
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7 #define _LJ_LIB_H
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8
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9 #include "lj_obj.h"
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10
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11 /*
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12 ** A fallback handler is called by the assembler VM if the fast path fails:
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13 **
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14 ** - too few arguments: unrecoverable.
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15 ** - wrong argument type: recoverable, if coercion succeeds.
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16 ** - bad argument value: unrecoverable.
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17 ** - stack overflow: recoverable, if stack reallocation succeeds.
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18 ** - extra handling: recoverable.
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19 **
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20 ** The unrecoverable cases throw an error with lj_err_arg(), lj_err_argtype(),
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21 ** lj_err_caller() or lj_err_callermsg().
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22 ** The recoverable cases return 0 or the number of results + 1.
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23 ** The assembler VM retries the fast path only if 0 is returned.
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24 ** This time the fallback must not be called again or it gets stuck in a loop.
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25 */
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26
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27 /* Return values from fallback handler. */
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28 #define FFH_RETRY 0
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29 #define FFH_UNREACHABLE FFH_RETRY
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30 #define FFH_RES(n) ((n)+1)
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31 #define FFH_TAILCALL (-1)
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32
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33 LJ_FUNC TValue *lj_lib_checkany(lua_State *L, int narg);
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34 LJ_FUNC GCstr *lj_lib_checkstr(lua_State *L, int narg);
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35 LJ_FUNC GCstr *lj_lib_optstr(lua_State *L, int narg);
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36 #if LJ_DUALNUM
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37 LJ_FUNC void lj_lib_checknumber(lua_State *L, int narg);
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38 #else
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39 #define lj_lib_checknumber(L, narg) lj_lib_checknum((L), (narg))
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40 #endif
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41 LJ_FUNC lua_Number lj_lib_checknum(lua_State *L, int narg);
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42 LJ_FUNC int32_t lj_lib_checkint(lua_State *L, int narg);
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43 LJ_FUNC int32_t lj_lib_optint(lua_State *L, int narg, int32_t def);
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44 LJ_FUNC GCfunc *lj_lib_checkfunc(lua_State *L, int narg);
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45 LJ_FUNC GCtab *lj_lib_checktab(lua_State *L, int narg);
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46 LJ_FUNC GCtab *lj_lib_checktabornil(lua_State *L, int narg);
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47 LJ_FUNC int lj_lib_checkopt(lua_State *L, int narg, int def, const char *lst);
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48
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49 #if LJ_HASBUFFER
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50 LJ_FUNC GCstr *lj_lib_checkstrx(lua_State *L, int narg);
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51 LJ_FUNC int32_t lj_lib_checkintrange(lua_State *L, int narg,
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52 int32_t a, int32_t b);
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53 #endif
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54
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55 /* Avoid including lj_frame.h. */
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56 #if LJ_GC64
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57 #define lj_lib_upvalue(L, n) \
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58 (&gcval(L->base-2)->fn.c.upvalue[(n)-1])
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59 #elif LJ_FR2
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60 #define lj_lib_upvalue(L, n) \
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61 (&gcref((L->base-2)->gcr)->fn.c.upvalue[(n)-1])
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62 #else
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63 #define lj_lib_upvalue(L, n) \
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64 (&gcref((L->base-1)->fr.func)->fn.c.upvalue[(n)-1])
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65 #endif
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66
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67 #if LJ_TARGET_WINDOWS
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68 #define lj_lib_checkfpu(L) \
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69 do { setnumV(L->top++, (lua_Number)1437217655); \
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70 if (lua_tointeger(L, -1) != 1437217655) lj_err_caller(L, LJ_ERR_BADFPU); \
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71 L->top--; } while (0)
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72 #else
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73 #define lj_lib_checkfpu(L) UNUSED(L)
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74 #endif
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75
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76 LJ_FUNC GCfunc *lj_lib_pushcc(lua_State *L, lua_CFunction f, int id, int n);
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77 #define lj_lib_pushcf(L, fn, id) (lj_lib_pushcc(L, (fn), (id), 0))
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78
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79 /* Library function declarations. Scanned by buildvm. */
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80 #define LJLIB_CF(name) static int lj_cf_##name(lua_State *L)
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81 #define LJLIB_ASM(name) static int lj_ffh_##name(lua_State *L)
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82 #define LJLIB_ASM_(name)
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83 #define LJLIB_LUA(name)
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84 #define LJLIB_SET(name)
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85 #define LJLIB_PUSH(arg)
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86 #define LJLIB_REC(handler)
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87 #define LJLIB_NOREGUV
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88 #define LJLIB_NOREG
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89
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90 #define LJ_LIB_REG(L, regname, name) \
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91 lj_lib_register(L, regname, lj_lib_init_##name, lj_lib_cf_##name)
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92
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93 LJ_FUNC void lj_lib_register(lua_State *L, const char *libname,
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94 const uint8_t *init, const lua_CFunction *cf);
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95 LJ_FUNC void lj_lib_prereg(lua_State *L, const char *name, lua_CFunction f,
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96 GCtab *env);
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97 LJ_FUNC int lj_lib_postreg(lua_State *L, lua_CFunction cf, int id,
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98 const char *name);
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99
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100 /* Library init data tags. */
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101 #define LIBINIT_LENMASK 0x3f
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102 #define LIBINIT_TAGMASK 0xc0
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103 #define LIBINIT_CF 0x00
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104 #define LIBINIT_ASM 0x40
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105 #define LIBINIT_ASM_ 0x80
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106 #define LIBINIT_STRING 0xc0
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107 #define LIBINIT_MAXSTR 0x38
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108 #define LIBINIT_LUA 0xf9
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109 #define LIBINIT_SET 0xfa
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110 #define LIBINIT_NUMBER 0xfb
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111 #define LIBINIT_COPY 0xfc
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112 #define LIBINIT_LASTCL 0xfd
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113 #define LIBINIT_FFID 0xfe
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114 #define LIBINIT_END 0xff
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115
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116 #endif