1/*
2** C type management.
3** Copyright (C) 2005-2021 Mike Pall. See Copyright Notice in luajit.h
4*/
5
6#ifndef _LJ_CTYPE_H
7#define _LJ_CTYPE_H
8
9#include "lj_obj.h"
10#include "lj_gc.h"
11
12#if LJ_HASFFI
13
14/* -- C type definitions -------------------------------------------------- */
15
16/* C type numbers. Highest 4 bits of C type info. ORDER CT. */
17enum {
18 /* Externally visible types. */
19 CT_NUM, /* Integer or floating-point numbers. */
20 CT_STRUCT, /* Struct or union. */
21 CT_PTR, /* Pointer or reference. */
22 CT_ARRAY, /* Array or complex type. */
23 CT_MAYCONVERT = CT_ARRAY,
24 CT_VOID, /* Void type. */
25 CT_ENUM, /* Enumeration. */
26 CT_HASSIZE = CT_ENUM, /* Last type where ct->size holds the actual size. */
27 CT_FUNC, /* Function. */
28 CT_TYPEDEF, /* Typedef. */
29 CT_ATTRIB, /* Miscellaneous attributes. */
30 /* Internal element types. */
31 CT_FIELD, /* Struct/union field or function parameter. */
32 CT_BITFIELD, /* Struct/union bitfield. */
33 CT_CONSTVAL, /* Constant value. */
34 CT_EXTERN, /* External reference. */
35 CT_KW /* Keyword. */
36};
37
38LJ_STATIC_ASSERT(((int)CT_PTR & (int)CT_ARRAY) == CT_PTR);
39LJ_STATIC_ASSERT(((int)CT_STRUCT & (int)CT_ARRAY) == CT_STRUCT);
40
41/*
42** ---------- info ------------
43** |type flags... A cid | size | sib | next | name |
44** +----------------------------+--------+-------+-------+-------+--
45** |NUM BFcvUL.. A | size | | type | |
46** |STRUCT ..cvU..V A | size | field | name? | name? |
47** |PTR ..cvR... A cid | size | | type | |
48** |ARRAY VCcv...V A cid | size | | type | |
49** |VOID ..cv.... A | size | | type | |
50** |ENUM A cid | size | const | name? | name? |
51** |FUNC ....VS.. cc cid | nargs | field | name? | name? |
52** |TYPEDEF cid | | | name | name |
53** |ATTRIB attrnum cid | attr | sib? | type? | |
54** |FIELD cid | offset | field | | name? |
55** |BITFIELD B.cvU csz bsz pos | offset | field | | name? |
56** |CONSTVAL c cid | value | const | name | name |
57** |EXTERN cid | | sib? | name | name |
58** |KW tok | size | | name | name |
59** +----------------------------+--------+-------+-------+-------+--
60** ^^ ^^--- bits used for C type conversion dispatch
61*/
62
63/* C type info flags. TFFArrrr */
64#define CTF_BOOL 0x08000000u /* Boolean: NUM, BITFIELD. */
65#define CTF_FP 0x04000000u /* Floating-point: NUM. */
66#define CTF_CONST 0x02000000u /* Const qualifier. */
67#define CTF_VOLATILE 0x01000000u /* Volatile qualifier. */
68#define CTF_UNSIGNED 0x00800000u /* Unsigned: NUM, BITFIELD. */
69#define CTF_LONG 0x00400000u /* Long: NUM. */
70#define CTF_VLA 0x00100000u /* Variable-length: ARRAY, STRUCT. */
71#define CTF_REF 0x00800000u /* Reference: PTR. */
72#define CTF_VECTOR 0x08000000u /* Vector: ARRAY. */
73#define CTF_COMPLEX 0x04000000u /* Complex: ARRAY. */
74#define CTF_UNION 0x00800000u /* Union: STRUCT. */
75#define CTF_VARARG 0x00800000u /* Vararg: FUNC. */
76#define CTF_SSEREGPARM 0x00400000u /* SSE register parameters: FUNC. */
77
78#define CTF_QUAL (CTF_CONST|CTF_VOLATILE)
79#define CTF_ALIGN (CTMASK_ALIGN<<CTSHIFT_ALIGN)
80#define CTF_UCHAR ((char)-1 > 0 ? CTF_UNSIGNED : 0)
81
82/* Flags used in parser. .F.Ammvf cp->attr */
83#define CTFP_ALIGNED 0x00000001u /* cp->attr + ALIGN */
84#define CTFP_PACKED 0x00000002u /* cp->attr */
85/* ...C...f cp->fattr */
86#define CTFP_CCONV 0x00000001u /* cp->fattr + CCONV/[SSE]REGPARM */
87
88/* C type info bitfields. */
89#define CTMASK_CID 0x0000ffffu /* Max. 65536 type IDs. */
90#define CTMASK_NUM 0xf0000000u /* Max. 16 type numbers. */
91#define CTSHIFT_NUM 28
92#define CTMASK_ALIGN 15 /* Max. alignment is 2^15. */
93#define CTSHIFT_ALIGN 16
94#define CTMASK_ATTRIB 255 /* Max. 256 attributes. */
95#define CTSHIFT_ATTRIB 16
96#define CTMASK_CCONV 3 /* Max. 4 calling conventions. */
97#define CTSHIFT_CCONV 16
98#define CTMASK_REGPARM 3 /* Max. 0-3 regparms. */
99#define CTSHIFT_REGPARM 18
100/* Bitfields only used in parser. */
101#define CTMASK_VSIZEP 15 /* Max. vector size is 2^15. */
102#define CTSHIFT_VSIZEP 4
103#define CTMASK_MSIZEP 255 /* Max. type size (via mode) is 128. */
104#define CTSHIFT_MSIZEP 8
105
106/* Info bits for BITFIELD. Max. size of bitfield is 64 bits. */
107#define CTBSZ_MAX 32 /* Max. size of bitfield is 32 bit. */
108#define CTBSZ_FIELD 127 /* Temp. marker for regular field. */
109#define CTMASK_BITPOS 127
110#define CTMASK_BITBSZ 127
111#define CTMASK_BITCSZ 127
112#define CTSHIFT_BITPOS 0
113#define CTSHIFT_BITBSZ 8
114#define CTSHIFT_BITCSZ 16
115
116#define CTF_INSERT(info, field, val) \
117 info = (info & ~(CTMASK_##field<<CTSHIFT_##field)) | \
118 (((CTSize)(val) & CTMASK_##field) << CTSHIFT_##field)
119
120/* Calling conventions. ORDER CC */
121enum { CTCC_CDECL, CTCC_THISCALL, CTCC_FASTCALL, CTCC_STDCALL };
122
123/* Attribute numbers. */
124enum {
125 CTA_NONE, /* Ignored attribute. Must be zero. */
126 CTA_QUAL, /* Unmerged qualifiers. */
127 CTA_ALIGN, /* Alignment override. */
128 CTA_SUBTYPE, /* Transparent sub-type. */
129 CTA_REDIR, /* Redirected symbol name. */
130 CTA_BAD, /* To catch bad IDs. */
131 CTA__MAX
132};
133
134/* Special sizes. */
135#define CTSIZE_INVALID 0xffffffffu
136
137typedef uint32_t CTInfo; /* Type info. */
138typedef uint32_t CTSize; /* Type size. */
139typedef uint32_t CTypeID; /* Type ID. */
140typedef uint16_t CTypeID1; /* Minimum-sized type ID. */
141
142/* C type table element. */
143typedef struct CType {
144 CTInfo info; /* Type info. */
145 CTSize size; /* Type size or other info. */
146 CTypeID1 sib; /* Sibling element. */
147 CTypeID1 next; /* Next element in hash chain. */
148 GCRef name; /* Element name (GCstr). */
149} CType;
150
151#define CTHASH_SIZE 128 /* Number of hash anchors. */
152#define CTHASH_MASK (CTHASH_SIZE-1)
153
154/* Simplify target-specific configuration. Checked in lj_ccall.h. */
155#define CCALL_MAX_GPR 8
156#define CCALL_MAX_FPR 8
157
158typedef LJ_ALIGN(8) union FPRCBArg { double d; float f[2]; } FPRCBArg;
159
160/* C callback state. Defined here, to avoid dragging in lj_ccall.h. */
161
162typedef LJ_ALIGN(8) struct CCallback {
163 FPRCBArg fpr[CCALL_MAX_FPR]; /* Arguments/results in FPRs. */
164 intptr_t gpr[CCALL_MAX_GPR]; /* Arguments/results in GPRs. */
165 intptr_t *stack; /* Pointer to arguments on stack. */
166 void *mcode; /* Machine code for callback func. pointers. */
167 CTypeID1 *cbid; /* Callback type table. */
168 MSize sizeid; /* Size of callback type table. */
169 MSize topid; /* Highest unused callback type table slot. */
170 MSize slot; /* Current callback slot. */
171} CCallback;
172
173/* C type state. */
174typedef struct CTState {
175 CType *tab; /* C type table. */
176 CTypeID top; /* Current top of C type table. */
177 MSize sizetab; /* Size of C type table. */
178 lua_State *L; /* Lua state (needed for errors and allocations). */
179 global_State *g; /* Global state. */
180 GCtab *finalizer; /* Map of cdata to finalizer. */
181 GCtab *miscmap; /* Map of -CTypeID to metatable and cb slot to func. */
182 CCallback cb; /* Temporary callback state. */
183 CTypeID1 hash[CTHASH_SIZE]; /* Hash anchors for C type table. */
184} CTState;
185
186#define CTINFO(ct, flags) (((CTInfo)(ct) << CTSHIFT_NUM) + (flags))
187#define CTALIGN(al) ((CTSize)(al) << CTSHIFT_ALIGN)
188#define CTATTRIB(at) ((CTInfo)(at) << CTSHIFT_ATTRIB)
189
190#define ctype_type(info) ((info) >> CTSHIFT_NUM)
191#define ctype_cid(info) ((CTypeID)((info) & CTMASK_CID))
192#define ctype_align(info) (((info) >> CTSHIFT_ALIGN) & CTMASK_ALIGN)
193#define ctype_attrib(info) (((info) >> CTSHIFT_ATTRIB) & CTMASK_ATTRIB)
194#define ctype_bitpos(info) (((info) >> CTSHIFT_BITPOS) & CTMASK_BITPOS)
195#define ctype_bitbsz(info) (((info) >> CTSHIFT_BITBSZ) & CTMASK_BITBSZ)
196#define ctype_bitcsz(info) (((info) >> CTSHIFT_BITCSZ) & CTMASK_BITCSZ)
197#define ctype_vsizeP(info) (((info) >> CTSHIFT_VSIZEP) & CTMASK_VSIZEP)
198#define ctype_msizeP(info) (((info) >> CTSHIFT_MSIZEP) & CTMASK_MSIZEP)
199#define ctype_cconv(info) (((info) >> CTSHIFT_CCONV) & CTMASK_CCONV)
200
201/* Simple type checks. */
202#define ctype_isnum(info) (ctype_type((info)) == CT_NUM)
203#define ctype_isvoid(info) (ctype_type((info)) == CT_VOID)
204#define ctype_isptr(info) (ctype_type((info)) == CT_PTR)
205#define ctype_isarray(info) (ctype_type((info)) == CT_ARRAY)
206#define ctype_isstruct(info) (ctype_type((info)) == CT_STRUCT)
207#define ctype_isfunc(info) (ctype_type((info)) == CT_FUNC)
208#define ctype_isenum(info) (ctype_type((info)) == CT_ENUM)
209#define ctype_istypedef(info) (ctype_type((info)) == CT_TYPEDEF)
210#define ctype_isattrib(info) (ctype_type((info)) == CT_ATTRIB)
211#define ctype_isfield(info) (ctype_type((info)) == CT_FIELD)
212#define ctype_isbitfield(info) (ctype_type((info)) == CT_BITFIELD)
213#define ctype_isconstval(info) (ctype_type((info)) == CT_CONSTVAL)
214#define ctype_isextern(info) (ctype_type((info)) == CT_EXTERN)
215#define ctype_hassize(info) (ctype_type((info)) <= CT_HASSIZE)
216
217/* Combined type and flag checks. */
218#define ctype_isinteger(info) \
219 (((info) & (CTMASK_NUM|CTF_BOOL|CTF_FP)) == CTINFO(CT_NUM, 0))
220#define ctype_isinteger_or_bool(info) \
221 (((info) & (CTMASK_NUM|CTF_FP)) == CTINFO(CT_NUM, 0))
222#define ctype_isbool(info) \
223 (((info) & (CTMASK_NUM|CTF_BOOL)) == CTINFO(CT_NUM, CTF_BOOL))
224#define ctype_isfp(info) \
225 (((info) & (CTMASK_NUM|CTF_FP)) == CTINFO(CT_NUM, CTF_FP))
226
227#define ctype_ispointer(info) \
228 ((ctype_type(info) >> 1) == (CT_PTR >> 1)) /* Pointer or array. */
229#define ctype_isref(info) \
230 (((info) & (CTMASK_NUM|CTF_REF)) == CTINFO(CT_PTR, CTF_REF))
231
232#define ctype_isrefarray(info) \
233 (((info) & (CTMASK_NUM|CTF_VECTOR|CTF_COMPLEX)) == CTINFO(CT_ARRAY, 0))
234#define ctype_isvector(info) \
235 (((info) & (CTMASK_NUM|CTF_VECTOR)) == CTINFO(CT_ARRAY, CTF_VECTOR))
236#define ctype_iscomplex(info) \
237 (((info) & (CTMASK_NUM|CTF_COMPLEX)) == CTINFO(CT_ARRAY, CTF_COMPLEX))
238
239#define ctype_isvltype(info) \
240 (((info) & ((CTMASK_NUM|CTF_VLA) - (2u<<CTSHIFT_NUM))) == \
241 CTINFO(CT_STRUCT, CTF_VLA)) /* VL array or VL struct. */
242#define ctype_isvlarray(info) \
243 (((info) & (CTMASK_NUM|CTF_VLA)) == CTINFO(CT_ARRAY, CTF_VLA))
244
245#define ctype_isxattrib(info, at) \
246 (((info) & (CTMASK_NUM|CTATTRIB(CTMASK_ATTRIB))) == \
247 CTINFO(CT_ATTRIB, CTATTRIB(at)))
248
249/* Target-dependent sizes and alignments. */
250#if LJ_64
251#define CTSIZE_PTR 8
252#define CTALIGN_PTR CTALIGN(3)
253#else
254#define CTSIZE_PTR 4
255#define CTALIGN_PTR CTALIGN(2)
256#endif
257
258#define CTINFO_REF(ref) \
259 CTINFO(CT_PTR, (CTF_CONST|CTF_REF|CTALIGN_PTR) + (ref))
260
261#define CT_MEMALIGN 3 /* Alignment guaranteed by memory allocator. */
262
263#ifdef LUA_USE_ASSERT
264#define lj_assertCTS(c, ...) (lj_assertG_(cts->g, (c), __VA_ARGS__))
265#else
266#define lj_assertCTS(c, ...) ((void)cts)
267#endif
268
269/* -- Predefined types ---------------------------------------------------- */
270
271/* Target-dependent types. */
272#if LJ_TARGET_PPC
273#define CTTYDEFP(_) \
274 _(LINT32, 4, CT_NUM, CTF_LONG|CTALIGN(2))
275#else
276#define CTTYDEFP(_)
277#endif
278
279/* Common types. */
280#define CTTYDEF(_) \
281 _(NONE, 0, CT_ATTRIB, CTATTRIB(CTA_BAD)) \
282 _(VOID, -1, CT_VOID, CTALIGN(0)) \
283 _(CVOID, -1, CT_VOID, CTF_CONST|CTALIGN(0)) \
284 _(BOOL, 1, CT_NUM, CTF_BOOL|CTF_UNSIGNED|CTALIGN(0)) \
285 _(CCHAR, 1, CT_NUM, CTF_CONST|CTF_UCHAR|CTALIGN(0)) \
286 _(INT8, 1, CT_NUM, CTALIGN(0)) \
287 _(UINT8, 1, CT_NUM, CTF_UNSIGNED|CTALIGN(0)) \
288 _(INT16, 2, CT_NUM, CTALIGN(1)) \
289 _(UINT16, 2, CT_NUM, CTF_UNSIGNED|CTALIGN(1)) \
290 _(INT32, 4, CT_NUM, CTALIGN(2)) \
291 _(UINT32, 4, CT_NUM, CTF_UNSIGNED|CTALIGN(2)) \
292 _(INT64, 8, CT_NUM, CTF_LONG|CTALIGN(3)) \
293 _(UINT64, 8, CT_NUM, CTF_UNSIGNED|CTF_LONG|CTALIGN(3)) \
294 _(FLOAT, 4, CT_NUM, CTF_FP|CTALIGN(2)) \
295 _(DOUBLE, 8, CT_NUM, CTF_FP|CTALIGN(3)) \
296 _(COMPLEX_FLOAT, 8, CT_ARRAY, CTF_COMPLEX|CTALIGN(2)|CTID_FLOAT) \
297 _(COMPLEX_DOUBLE, 16, CT_ARRAY, CTF_COMPLEX|CTALIGN(3)|CTID_DOUBLE) \
298 _(P_VOID, CTSIZE_PTR, CT_PTR, CTALIGN_PTR|CTID_VOID) \
299 _(P_CVOID, CTSIZE_PTR, CT_PTR, CTALIGN_PTR|CTID_CVOID) \
300 _(P_CCHAR, CTSIZE_PTR, CT_PTR, CTALIGN_PTR|CTID_CCHAR) \
301 _(A_CCHAR, -1, CT_ARRAY, CTF_CONST|CTALIGN(0)|CTID_CCHAR) \
302 _(CTYPEID, 4, CT_ENUM, CTALIGN(2)|CTID_INT32) \
303 CTTYDEFP(_) \
304 /* End of type list. */
305
306/* Public predefined type IDs. */
307enum {
308#define CTTYIDDEF(id, sz, ct, info) CTID_##id,
309CTTYDEF(CTTYIDDEF)
310#undef CTTYIDDEF
311 /* Predefined typedefs and keywords follow. */
312 CTID_MAX = 65536
313};
314
315/* Target-dependent type IDs. */
316#if LJ_64
317#define CTID_INT_PSZ CTID_INT64
318#define CTID_UINT_PSZ CTID_UINT64
319#else
320#define CTID_INT_PSZ CTID_INT32
321#define CTID_UINT_PSZ CTID_UINT32
322#endif
323
324#if LJ_ABI_WIN
325#define CTID_WCHAR CTID_UINT16
326#elif LJ_TARGET_PPC
327#define CTID_WCHAR CTID_LINT32
328#else
329#define CTID_WCHAR CTID_INT32
330#endif
331
332/* -- C tokens and keywords ----------------------------------------------- */
333
334/* C lexer keywords. */
335#define CTOKDEF(_) \
336 _(IDENT, "<identifier>") _(STRING, "<string>") \
337 _(INTEGER, "<integer>") _(EOF, "<eof>") \
338 _(OROR, "||") _(ANDAND, "&&") _(EQ, "==") _(NE, "!=") \
339 _(LE, "<=") _(GE, ">=") _(SHL, "<<") _(SHR, ">>") _(DEREF, "->")
340
341/* Simple declaration specifiers. */
342#define CDSDEF(_) \
343 _(VOID) _(BOOL) _(CHAR) _(INT) _(FP) \
344 _(LONG) _(LONGLONG) _(SHORT) _(COMPLEX) _(SIGNED) _(UNSIGNED) \
345 _(CONST) _(VOLATILE) _(RESTRICT) _(INLINE) \
346 _(TYPEDEF) _(EXTERN) _(STATIC) _(AUTO) _(REGISTER)
347
348/* C keywords. */
349#define CKWDEF(_) \
350 CDSDEF(_) _(EXTENSION) _(ASM) _(ATTRIBUTE) \
351 _(DECLSPEC) _(CCDECL) _(PTRSZ) \
352 _(STRUCT) _(UNION) _(ENUM) \
353 _(SIZEOF) _(ALIGNOF)
354
355/* C token numbers. */
356enum {
357 CTOK_OFS = 255,
358#define CTOKNUM(name, sym) CTOK_##name,
359#define CKWNUM(name) CTOK_##name,
360CTOKDEF(CTOKNUM)
361CKWDEF(CKWNUM)
362#undef CTOKNUM
363#undef CKWNUM
364 CTOK_FIRSTDECL = CTOK_VOID,
365 CTOK_FIRSTSCL = CTOK_TYPEDEF,
366 CTOK_LASTDECLFLAG = CTOK_REGISTER,
367 CTOK_LASTDECL = CTOK_ENUM
368};
369
370/* Declaration specifier flags. */
371enum {
372#define CDSFLAG(name) CDF_##name = (1u << (CTOK_##name - CTOK_FIRSTDECL)),
373CDSDEF(CDSFLAG)
374#undef CDSFLAG
375 CDF__END
376};
377
378#define CDF_SCL (CDF_TYPEDEF|CDF_EXTERN|CDF_STATIC|CDF_AUTO|CDF_REGISTER)
379
380/* -- C type management --------------------------------------------------- */
381
382#define ctype_ctsG(g) (mref((g)->ctype_state, CTState))
383
384/* Get C type state. */
385static LJ_AINLINE CTState *ctype_cts(lua_State *L)
386{
387 CTState *cts = ctype_ctsG(G(L));
388 cts->L = L; /* Save L for errors and allocations. */
389 return cts;
390}
391
392/* Save and restore state of C type table. */
393#define LJ_CTYPE_SAVE(cts) CTState savects_ = *(cts)
394#define LJ_CTYPE_RESTORE(cts) \
395 ((cts)->top = savects_.top, \
396 memcpy((cts)->hash, savects_.hash, sizeof(savects_.hash)))
397
398/* Check C type ID for validity when assertions are enabled. */
399static LJ_AINLINE CTypeID ctype_check(CTState *cts, CTypeID id)
400{
401 UNUSED(cts);
402 lj_assertCTS(id > 0 && id < cts->top, "bad CTID %d", id);
403 return id;
404}
405
406/* Get C type for C type ID. */
407static LJ_AINLINE CType *ctype_get(CTState *cts, CTypeID id)
408{
409 return &cts->tab[ctype_check(cts, id)];
410}
411
412/* Get C type ID for a C type. */
413#define ctype_typeid(cts, ct) ((CTypeID)((ct) - (cts)->tab))
414
415/* Get child C type. */
416static LJ_AINLINE CType *ctype_child(CTState *cts, CType *ct)
417{
418 lj_assertCTS(!(ctype_isvoid(ct->info) || ctype_isstruct(ct->info) ||
419 ctype_isbitfield(ct->info)),
420 "ctype %08x has no children", ct->info);
421 return ctype_get(cts, ctype_cid(ct->info));
422}
423
424/* Get raw type for a C type ID. */
425static LJ_AINLINE CType *ctype_raw(CTState *cts, CTypeID id)
426{
427 CType *ct = ctype_get(cts, id);
428 while (ctype_isattrib(ct->info)) ct = ctype_child(cts, ct);
429 return ct;
430}
431
432/* Get raw type of the child of a C type. */
433static LJ_AINLINE CType *ctype_rawchild(CTState *cts, CType *ct)
434{
435 do { ct = ctype_child(cts, ct); } while (ctype_isattrib(ct->info));
436 return ct;
437}
438
439/* Set the name of a C type table element. */
440static LJ_AINLINE void ctype_setname(CType *ct, GCstr *s)
441{
442 /* NOBARRIER: mark string as fixed -- the C type table is never collected. */
443 fixstring(s);
444 setgcref(ct->name, obj2gco(s));
445}
446
447LJ_FUNC CTypeID lj_ctype_new(CTState *cts, CType **ctp);
448LJ_FUNC CTypeID lj_ctype_intern(CTState *cts, CTInfo info, CTSize size);
449LJ_FUNC void lj_ctype_addname(CTState *cts, CType *ct, CTypeID id);
450LJ_FUNC CTypeID lj_ctype_getname(CTState *cts, CType **ctp, GCstr *name,
451 uint32_t tmask);
452LJ_FUNC CType *lj_ctype_getfieldq(CTState *cts, CType *ct, GCstr *name,
453 CTSize *ofs, CTInfo *qual);
454#define lj_ctype_getfield(cts, ct, name, ofs) \
455 lj_ctype_getfieldq((cts), (ct), (name), (ofs), NULL)
456LJ_FUNC CType *lj_ctype_rawref(CTState *cts, CTypeID id);
457LJ_FUNC CTSize lj_ctype_size(CTState *cts, CTypeID id);
458LJ_FUNC CTSize lj_ctype_vlsize(CTState *cts, CType *ct, CTSize nelem);
459LJ_FUNC CTInfo lj_ctype_info(CTState *cts, CTypeID id, CTSize *szp);
460LJ_FUNC cTValue *lj_ctype_meta(CTState *cts, CTypeID id, MMS mm);
461LJ_FUNC GCstr *lj_ctype_repr(lua_State *L, CTypeID id, GCstr *name);
462LJ_FUNC GCstr *lj_ctype_repr_int64(lua_State *L, uint64_t n, int isunsigned);
463LJ_FUNC GCstr *lj_ctype_repr_complex(lua_State *L, void *sp, CTSize size);
464LJ_FUNC CTState *lj_ctype_init(lua_State *L);
465LJ_FUNC void lj_ctype_freestate(global_State *g);
466
467#endif
468
469#endif
470