Remove LuaJIT source, we can use packaged LuaJIT 2.0 release now.

Also some cleanups related to the other library removals.

1 files changed, 0 insertions, 742 deletions

diff --git a/libraries/luajit-2.0/src/lj_cconv.c b/libraries/luajit-2.0/src/lj_cconv.c
deleted file mode 100644
index 9d47835..0000000
--- a/libraries/luajit-2.0/src/lj_cconv.c
+++ /dev/null
@@ -1,742 +0,0 @@
-/*
-** C type conversions.
-** Copyright (C) 2005-2011 Mike Pall. See Copyright Notice in luajit.h
-*/
-
-#include "lj_obj.h"
-
-#if LJ_HASFFI
-
-#include "lj_err.h"
-#include "lj_tab.h"
-#include "lj_ctype.h"
-#include "lj_cdata.h"
-#include "lj_cconv.h"
-#include "lj_ccallback.h"
-
-/* -- Conversion errors --------------------------------------------------- */
-
-/* Bad conversion. */
-LJ_NORET static void cconv_err_conv(CTState *cts, CType *d, CType *s,
-                                    CTInfo flags)
-{
-  const char *dst = strdata(lj_ctype_repr(cts->L, ctype_typeid(cts, d), NULL));
-  const char *src;
-  if ((flags & CCF_FROMTV))
-    src = lj_obj_typename[1+(ctype_isnum(s->info) ? LUA_TNUMBER :
-                             ctype_isarray(s->info) ? LUA_TSTRING : LUA_TNIL)];
-  else
-    src = strdata(lj_ctype_repr(cts->L, ctype_typeid(cts, s), NULL));
-  if (CCF_GETARG(flags))
-    lj_err_argv(cts->L, CCF_GETARG(flags), LJ_ERR_FFI_BADCONV, src, dst);
-  else
-    lj_err_callerv(cts->L, LJ_ERR_FFI_BADCONV, src, dst);
-}
-
-/* Bad conversion from TValue. */
-LJ_NORET static void cconv_err_convtv(CTState *cts, CType *d, TValue *o,
-                                      CTInfo flags)
-{
-  const char *dst = strdata(lj_ctype_repr(cts->L, ctype_typeid(cts, d), NULL));
-  const char *src = typename(o);
-  if (CCF_GETARG(flags))
-    lj_err_argv(cts->L, CCF_GETARG(flags), LJ_ERR_FFI_BADCONV, src, dst);
-  else
-    lj_err_callerv(cts->L, LJ_ERR_FFI_BADCONV, src, dst);
-}
-
-/* Initializer overflow. */
-LJ_NORET static void cconv_err_initov(CTState *cts, CType *d)
-{
-  const char *dst = strdata(lj_ctype_repr(cts->L, ctype_typeid(cts, d), NULL));
-  lj_err_callerv(cts->L, LJ_ERR_FFI_INITOV, dst);
-}
-
-/* -- C type compatibility checks ----------------------------------------- */
-
-/* Get raw type and qualifiers for a child type. Resolves enums, too. */
-static CType *cconv_childqual(CTState *cts, CType *ct, CTInfo *qual)
-{
-  ct = ctype_child(cts, ct);
-  for (;;) {
-    if (ctype_isattrib(ct->info)) {
-      if (ctype_attrib(ct->info) == CTA_QUAL) *qual |= ct->size;
-    } else if (!ctype_isenum(ct->info)) {
-      break;
-    }
-    ct = ctype_child(cts, ct);
-  }
-  *qual |= (ct->info & CTF_QUAL);
-  return ct;
-}
-
-/* Check for compatible types when converting to a pointer.
-** Note: these checks are more relaxed than what C99 mandates.
-*/
-int lj_cconv_compatptr(CTState *cts, CType *d, CType *s, CTInfo flags)
-{
-  if (!((flags & CCF_CAST) || d == s)) {
-    CTInfo dqual = 0, squal = 0;
-    d = cconv_childqual(cts, d, &dqual);
-    if (!ctype_isstruct(s->info))
-      s = cconv_childqual(cts, s, &squal);
-    if ((flags & CCF_SAME)) {
-      if (dqual != squal)
-        return 0;  /* Different qualifiers. */
-    } else if (!(flags & CCF_IGNQUAL)) {
-      if ((dqual & squal) != squal)
-        return 0;  /* Discarded qualifiers. */
-      if (ctype_isvoid(d->info) || ctype_isvoid(s->info))
-        return 1;  /* Converting to/from void * is always ok. */
-    }
-    if (ctype_type(d->info) != ctype_type(s->info) ||
-        d->size != s->size)
-      return 0;  /* Different type or different size. */
-    if (ctype_isnum(d->info)) {
-      if (((d->info ^ s->info) & (CTF_BOOL|CTF_FP)))
-        return 0;  /* Different numeric types. */
-    } else if (ctype_ispointer(d->info)) {
-      /* Check child types for compatibility. */
-      return lj_cconv_compatptr(cts, d, s, flags|CCF_SAME);
-    } else if (ctype_isstruct(d->info)) {
-      if (d != s)
-        return 0;  /* Must be exact same type for struct/union. */
-    } else if (ctype_isfunc(d->info)) {
-      /* NYI: structural equality of functions. */
-    }
-  }
-  return 1;  /* Types are compatible. */
-}
-
-/* -- C type to C type conversion ----------------------------------------- */
-
-/* Convert C type to C type. Caveat: expects to get the raw CType!
-**
-** Note: This is only used by the interpreter and not optimized at all.
-** The JIT compiler will do a much better job specializing for each case.
-*/
-void lj_cconv_ct_ct(CTState *cts, CType *d, CType *s,
-                    uint8_t *dp, uint8_t *sp, CTInfo flags)
-{
-  CTSize dsize = d->size, ssize = s->size;
-  CTInfo dinfo = d->info, sinfo = s->info;
-  void *tmpptr;
-
-  lua_assert(!ctype_isenum(dinfo) && !ctype_isenum(sinfo));
-  lua_assert(!ctype_isattrib(dinfo) && !ctype_isattrib(sinfo));
-
-  if (ctype_type(dinfo) > CT_MAYCONVERT || ctype_type(sinfo) > CT_MAYCONVERT)
-    goto err_conv;
-
-  /* Some basic sanity checks. */
-  lua_assert(!ctype_isnum(dinfo) || dsize > 0);
-  lua_assert(!ctype_isnum(sinfo) || ssize > 0);
-  lua_assert(!ctype_isbool(dinfo) || dsize == 1);
-  lua_assert(!ctype_isbool(sinfo) || ssize == 1);
-  lua_assert(!ctype_isinteger(dinfo) || (1u<<lj_fls(dsize)) == dsize);
-  lua_assert(!ctype_isinteger(sinfo) || (1u<<lj_fls(ssize)) == ssize);
-
-  switch (cconv_idx2(dinfo, sinfo)) {
-  /* Destination is a bool. */
-  case CCX(B, B):
-    *dp = *sp;  /* Source operand is already normalized. */
-    break;
-  case CCX(B, I): {
-    MSize i;
-    uint8_t b = 0;
-    for (i = 0; i < ssize; i++) b |= sp[i];
-    *dp = (b != 0);
-    break;
-    }
-  case CCX(B, F): {
-    uint8_t b;
-    if (ssize == sizeof(double)) b = (*(double *)sp != 0);
-    else if (ssize == sizeof(float)) b = (*(float *)sp != 0);
-    else goto err_conv;  /* NYI: long double. */
-    *dp = b;
-    break;
-    }
-
-  /* Destination is an integer. */
-  case CCX(I, B):
-  case CCX(I, I):
-  conv_I_I:
-    if (dsize > ssize) {  /* Zero-extend or sign-extend LSB. */
-#if LJ_LE
-      uint8_t fill = (!(sinfo & CTF_UNSIGNED) && (sp[ssize-1]&0x80)) ? 0xff : 0;
-      memcpy(dp, sp, ssize);
-      memset(dp + ssize, fill, dsize-ssize);
-#else
-      uint8_t fill = (!(sinfo & CTF_UNSIGNED) && (sp[0]&0x80)) ? 0xff : 0;
-      memset(dp, fill, dsize-ssize);
-      memcpy(dp + (dsize-ssize), sp, ssize);
-#endif
-    } else {  /* Copy LSB. */
-#if LJ_LE
-      memcpy(dp, sp, dsize);
-#else
-      memcpy(dp, sp + (ssize-dsize), dsize);
-#endif
-    }
-    break;
-  case CCX(I, F): {
-    double n;  /* Always convert via double. */
-  conv_I_F:
-    /* Convert source to double. */
-    if (ssize == sizeof(double)) n = *(double *)sp;
-    else if (ssize == sizeof(float)) n = (double)*(float *)sp;
-    else goto err_conv;  /* NYI: long double. */
-    /* Then convert double to integer. */
-    /* The conversion must exactly match the semantics of JIT-compiled code! */
-    if (dsize < 4 || (dsize == 4 && !(dinfo & CTF_UNSIGNED))) {
-      int32_t i = (int32_t)n;
-      if (dsize == 4) *(int32_t *)dp = i;
-      else if (dsize == 2) *(int16_t *)dp = (int16_t)i;
-      else *(int8_t *)dp = (int8_t)i;
-    } else if (dsize == 4) {
-      *(uint32_t *)dp = (uint32_t)n;
-    } else if (dsize == 8) {
-      if (!(dinfo & CTF_UNSIGNED))
-        *(int64_t *)dp = (int64_t)n;
-      else
-        *(uint64_t *)dp = lj_num2u64(n);
-    } else {
-      goto err_conv;  /* NYI: conversion to >64 bit integers. */
-    }
-    break;
-    }
-  case CCX(I, C):
-    s = ctype_child(cts, s);
-    sinfo = s->info;
-    ssize = s->size;
-    goto conv_I_F;  /* Just convert re. */
-  case CCX(I, P):
-    if (!(flags & CCF_CAST)) goto err_conv;
-    sinfo = CTINFO(CT_NUM, CTF_UNSIGNED);
-    goto conv_I_I;
-  case CCX(I, A):
-    if (!(flags & CCF_CAST)) goto err_conv;
-    sinfo = CTINFO(CT_NUM, CTF_UNSIGNED);
-    ssize = CTSIZE_PTR;
-    tmpptr = sp;
-    sp = (uint8_t *)&tmpptr;
-    goto conv_I_I;
-
-  /* Destination is a floating-point number. */
-  case CCX(F, B):
-  case CCX(F, I): {
-    double n;  /* Always convert via double. */
-  conv_F_I:
-    /* First convert source to double. */
-    /* The conversion must exactly match the semantics of JIT-compiled code! */
-    if (ssize < 4 || (ssize == 4 && !(sinfo & CTF_UNSIGNED))) {
-      int32_t i;
-      if (ssize == 4) {
-        i = *(int32_t *)sp;
-      } else if (!(sinfo & CTF_UNSIGNED)) {
-        if (ssize == 2) i = *(int16_t *)sp;
-        else i = *(int8_t *)sp;
-      } else {
-        if (ssize == 2) i = *(uint16_t *)sp;
-        else i = *(uint8_t *)sp;
-      }
-      n = (double)i;
-    } else if (ssize == 4) {
-      n = (double)*(uint32_t *)sp;
-    } else if (ssize == 8) {
-      if (!(sinfo & CTF_UNSIGNED)) n = (double)*(int64_t *)sp;
-      else n = (double)*(uint64_t *)sp;
-    } else {
-      goto err_conv;  /* NYI: conversion from >64 bit integers. */
-    }
-    /* Convert double to destination. */
-    if (dsize == sizeof(double)) *(double *)dp = n;
-    else if (dsize == sizeof(float)) *(float *)dp = (float)n;
-    else goto err_conv;  /* NYI: long double. */
-    break;
-    }
-  case CCX(F, F): {
-    double n;  /* Always convert via double. */
-  conv_F_F:
-    if (ssize == dsize) goto copyval;
-    /* Convert source to double. */
-    if (ssize == sizeof(double)) n = *(double *)sp;
-    else if (ssize == sizeof(float)) n = (double)*(float *)sp;
-    else goto err_conv;  /* NYI: long double. */
-    /* Convert double to destination. */
-    if (dsize == sizeof(double)) *(double *)dp = n;
-    else if (dsize == sizeof(float)) *(float *)dp = (float)n;
-    else goto err_conv;  /* NYI: long double. */
-    break;
-    }
-  case CCX(F, C):
-    s = ctype_child(cts, s);
-    sinfo = s->info;
-    ssize = s->size;
-    goto conv_F_F;  /* Ignore im, and convert from re. */
-
-  /* Destination is a complex number. */
-  case CCX(C, I):
-    d = ctype_child(cts, d);
-    dinfo = d->info;
-    dsize = d->size;
-    memset(dp + dsize, 0, dsize);  /* Clear im. */
-    goto conv_F_I;  /* Convert to re. */
-  case CCX(C, F):
-    d = ctype_child(cts, d);
-    dinfo = d->info;
-    dsize = d->size;
-    memset(dp + dsize, 0, dsize);  /* Clear im. */
-    goto conv_F_F;  /* Convert to re. */
-
-  case CCX(C, C):
-    if (dsize != ssize) {  /* Different types: convert re/im separately. */
-      CType *dc = ctype_child(cts, d);
-      CType *sc = ctype_child(cts, s);
-      lj_cconv_ct_ct(cts, dc, sc, dp, sp, flags);
-      lj_cconv_ct_ct(cts, dc, sc, dp + dc->size, sp + sc->size, flags);
-      return;
-    }
-    goto copyval;  /* Otherwise this is easy. */
-
-  /* Destination is a vector. */
-  case CCX(V, I):
-  case CCX(V, F):
-  case CCX(V, C): {
-    CType *dc = ctype_child(cts, d);
-    CTSize esize;
-    /* First convert the scalar to the first element. */
-    lj_cconv_ct_ct(cts, dc, s, dp, sp, flags);
-    /* Then replicate it to the other elements (splat). */
-    for (sp = dp, esize = dc->size; dsize > esize; dsize -= esize) {
-      dp += esize;
-      memcpy(dp, sp, esize);
-    }
-    break;
-    }
-
-  case CCX(V, V):
-    /* Copy same-sized vectors, even for different lengths/element-types. */
-    if (dsize != ssize) goto err_conv;
-    goto copyval;
-
-  /* Destination is a pointer. */
-  case CCX(P, I):
-    if (!(flags & CCF_CAST)) goto err_conv;
-    dinfo = CTINFO(CT_NUM, CTF_UNSIGNED);
-    goto conv_I_I;
-
-  case CCX(P, F):
-    if (!(flags & CCF_CAST) || !(flags & CCF_FROMTV)) goto err_conv;
-    /* The signed conversion is cheaper. x64 really has 47 bit pointers. */
-    dinfo = CTINFO(CT_NUM, (LJ_64 && dsize == 8) ? 0 : CTF_UNSIGNED);
-    goto conv_I_F;
-
-  case CCX(P, P):
-    if (!lj_cconv_compatptr(cts, d, s, flags)) goto err_conv;
-    cdata_setptr(dp, dsize, cdata_getptr(sp, ssize));
-    break;
-
-  case CCX(P, A):
-  case CCX(P, S):
-    if (!lj_cconv_compatptr(cts, d, s, flags)) goto err_conv;
-    cdata_setptr(dp, dsize, sp);
-    break;
-
-  /* Destination is an array. */
-  case CCX(A, A):
-    if ((flags & CCF_CAST) || (d->info & CTF_VLA) || dsize != ssize ||
-        d->size == CTSIZE_INVALID || !lj_cconv_compatptr(cts, d, s, flags))
-      goto err_conv;
-    goto copyval;
-
-  /* Destination is a struct/union. */
-  case CCX(S, S):
-    if ((flags & CCF_CAST) || (d->info & CTF_VLA) || d != s)
-      goto err_conv;  /* Must be exact same type. */
-copyval:  /* Copy value. */
-    lua_assert(dsize == ssize);
-    memcpy(dp, sp, dsize);
-    break;
-
-  default:
-  err_conv:
-    cconv_err_conv(cts, d, s, flags);
-  }
-}
-
-/* -- C type to TValue conversion ----------------------------------------- */
-
-/* Convert C type to TValue. Caveat: expects to get the raw CType! */
-int lj_cconv_tv_ct(CTState *cts, CType *s, CTypeID sid,
-                   TValue *o, uint8_t *sp)
-{
-  CTInfo sinfo = s->info;
-  lua_assert(!ctype_isenum(sinfo));
-  if (ctype_isnum(sinfo)) {
-    if (!ctype_isbool(sinfo)) {
-      if (ctype_isinteger(sinfo) && s->size > 4) goto copyval;
-      if (LJ_DUALNUM && ctype_isinteger(sinfo)) {
-        int32_t i;
-        lj_cconv_ct_ct(cts, ctype_get(cts, CTID_INT32), s,
-                       (uint8_t *)&i, sp, 0);
-        if ((sinfo & CTF_UNSIGNED) && i < 0)
-          setnumV(o, (lua_Number)(uint32_t)i);
-        else
-          setintV(o, i);
-      } else {
-        lj_cconv_ct_ct(cts, ctype_get(cts, CTID_DOUBLE), s,
-                       (uint8_t *)&o->n, sp, 0);
-        /* Numbers are NOT canonicalized here! Beware of uninitialized data. */
-        lua_assert(tvisnum(o));
-      }
-    } else {
-      uint32_t b = (*sp != 0);
-      setboolV(o, b);
-      setboolV(&cts->g->tmptv2, b);  /* Remember for trace recorder. */
-    }
-    return 0;
-  } else if (ctype_isrefarray(sinfo) || ctype_isstruct(sinfo)) {
-    /* Create reference. */
-    setcdataV(cts->L, o, lj_cdata_newref(cts, sp, sid));
-    return 1;  /* Need GC step. */
-  } else {
-    GCcdata *cd;
-    CTSize sz;
-  copyval:  /* Copy value. */
-    sz = s->size;
-    lua_assert(sz != CTSIZE_INVALID);
-    /* Attributes are stripped, qualifiers are kept (but mostly ignored). */
-    cd = lj_cdata_new(cts, ctype_typeid(cts, s), sz);
-    setcdataV(cts->L, o, cd);
-    memcpy(cdataptr(cd), sp, sz);
-    return 1;  /* Need GC step. */
-  }
-}
-
-/* Convert bitfield to TValue. */
-int lj_cconv_tv_bf(CTState *cts, CType *s, TValue *o, uint8_t *sp)
-{
-  CTInfo info = s->info;
-  CTSize pos, bsz;
-  uint32_t val;
-  lua_assert(ctype_isbitfield(info));
-  /* NYI: packed bitfields may cause misaligned reads. */
-  switch (ctype_bitcsz(info)) {
-  case 4: val = *(uint32_t *)sp; break;
-  case 2: val = *(uint16_t *)sp; break;
-  case 1: val = *(uint8_t *)sp; break;
-  default: lua_assert(0); val = 0; break;
-  }
-  /* Check if a packed bitfield crosses a container boundary. */
-  pos = ctype_bitpos(info);
-  bsz = ctype_bitbsz(info);
-  lua_assert(pos < 8*ctype_bitcsz(info));
-  lua_assert(bsz > 0 && bsz <= 8*ctype_bitcsz(info));
-  if (pos + bsz > 8*ctype_bitcsz(info))
-    lj_err_caller(cts->L, LJ_ERR_FFI_NYIPACKBIT);
-  if (!(info & CTF_BOOL)) {
-    CTSize shift = 32 - bsz;
-    if (!(info & CTF_UNSIGNED)) {
-      setintV(o, (int32_t)(val << (shift-pos)) >> shift);
-    } else {
-      val = (val << (shift-pos)) >> shift;
-      if (!LJ_DUALNUM || (int32_t)val < 0)
-        setnumV(o, (lua_Number)(uint32_t)val);
-      else
-        setintV(o, (int32_t)val);
-    }
-  } else {
-    lua_assert(bsz == 1);
-    setboolV(o, (val >> pos) & 1);
-  }
-  return 0;  /* No GC step needed. */
-}
-
-/* -- TValue to C type conversion ----------------------------------------- */
-
-/* Convert table to array. */
-static void cconv_array_tab(CTState *cts, CType *d,
-                            uint8_t *dp, GCtab *t, CTInfo flags)
-{
-  int32_t i;
-  CType *dc = ctype_rawchild(cts, d);  /* Array element type. */
-  CTSize size = d->size, esize = dc->size, ofs = 0;
-  for (i = 0; ; i++) {
-    TValue *tv = (TValue *)lj_tab_getint(t, i);
-    if (!tv || tvisnil(tv)) {
-      if (i == 0) continue;  /* Try again for 1-based tables. */
-      break;  /* Stop at first nil. */
-    }
-    if (ofs >= size)
-      cconv_err_initov(cts, d);
-    lj_cconv_ct_tv(cts, dc, dp + ofs, tv, flags);
-    ofs += esize;
-  }
-  if (size != CTSIZE_INVALID) {  /* Only fill up arrays with known size. */
-    if (ofs == esize) {  /* Replicate a single element. */
-      for (; ofs < size; ofs += esize) memcpy(dp + ofs, dp, esize);
-    } else {  /* Otherwise fill the remainder with zero. */
-      memset(dp + ofs, 0, size - ofs);
-    }
-  }
-}
-
-/* Convert table to sub-struct/union. */
-static void cconv_substruct_tab(CTState *cts, CType *d, uint8_t *dp,
-                                GCtab *t, int32_t *ip, CTInfo flags)
-{
-  CTypeID id = d->sib;
-  while (id) {
-    CType *df = ctype_get(cts, id);
-    id = df->sib;
-    if (ctype_isfield(df->info) || ctype_isbitfield(df->info)) {
-      TValue *tv;
-      int32_t i = *ip;
-      if (!gcref(df->name)) continue;  /* Ignore unnamed fields. */
-      if (i >= 0) {
-      retry:
-        tv = (TValue *)lj_tab_getint(t, i);
-        if (!tv || tvisnil(tv)) {
-          if (i == 0) { i = 1; goto retry; }  /* 1-based tables. */
-          break;  /* Stop at first nil. */
-        }
-        *ip = i + 1;
-      } else {
-        tv = (TValue *)lj_tab_getstr(t, gco2str(gcref(df->name)));
-        if (!tv || tvisnil(tv)) continue;
-      }
-      if (ctype_isfield(df->info))
-        lj_cconv_ct_tv(cts, ctype_rawchild(cts, df), dp+df->size, tv, flags);
-      else
-        lj_cconv_bf_tv(cts, df, dp+df->size, tv);
-      if ((d->info & CTF_UNION)) break;
-    } else if (ctype_isxattrib(df->info, CTA_SUBTYPE)) {
-      cconv_substruct_tab(cts, ctype_child(cts, df), dp+df->size, t, ip, flags);
-    }  /* Ignore all other entries in the chain. */
-  }
-}
-
-/* Convert table to struct/union. */
-static void cconv_struct_tab(CTState *cts, CType *d,
-                             uint8_t *dp, GCtab *t, CTInfo flags)
-{
-  int32_t i = 0;
-  memset(dp, 0, d->size);  /* Much simpler to clear the struct first. */
-  if (t->hmask) i = -1; else if (t->asize == 0) return;  /* Fast exit. */
-  cconv_substruct_tab(cts, d, dp, t, &i, flags);
-}
-
-/* Convert TValue to C type. Caveat: expects to get the raw CType! */
-void lj_cconv_ct_tv(CTState *cts, CType *d,
-                    uint8_t *dp, TValue *o, CTInfo flags)
-{
-  CTypeID sid = CTID_P_VOID;
-  CType *s;
-  void *tmpptr;
-  uint8_t tmpbool, *sp = (uint8_t *)&tmpptr;
-  if (LJ_LIKELY(tvisint(o))) {
-    sp = (uint8_t *)&o->i;
-    sid = CTID_INT32;
-    flags |= CCF_FROMTV;
-  } else if (LJ_LIKELY(tvisnum(o))) {
-    sp = (uint8_t *)&o->n;
-    sid = CTID_DOUBLE;
-    flags |= CCF_FROMTV;
-  } else if (tviscdata(o)) {
-    sp = cdataptr(cdataV(o));
-    sid = cdataV(o)->typeid;
-    s = ctype_get(cts, sid);
-    if (ctype_isref(s->info)) {  /* Resolve reference for value. */
-      lua_assert(s->size == CTSIZE_PTR);
-      sp = *(void **)sp;
-      sid = ctype_cid(s->info);
-    }
-    s = ctype_raw(cts, sid);
-    if (ctype_isfunc(s->info)) {
-      sid = lj_ctype_intern(cts, CTINFO(CT_PTR, CTALIGN_PTR|sid), CTSIZE_PTR);
-    } else {
-      if (ctype_isenum(s->info)) s = ctype_child(cts, s);
-      goto doconv;
-    }
-  } else if (tvisstr(o)) {
-    GCstr *str = strV(o);
-    if (ctype_isenum(d->info)) {  /* Match string against enum constant. */
-      CTSize ofs;
-      CType *cct = lj_ctype_getfield(cts, d, str, &ofs);
-      if (!cct || !ctype_isconstval(cct->info))
-        goto err_conv;
-      lua_assert(d->size == 4);
-      sp = (uint8_t *)&cct->size;
-      sid = ctype_cid(cct->info);
-    } else if (ctype_isrefarray(d->info)) {  /* Copy string to array. */
-      CType *dc = ctype_rawchild(cts, d);
-      CTSize sz = str->len+1;
-      if (!ctype_isinteger(dc->info) || dc->size != 1)
-        goto err_conv;
-      if (d->size != 0 && d->size < sz)
-        sz = d->size;
-      memcpy(dp, strdata(str), sz);
-      return;
-    } else {  /* Otherwise pass it as a const char[]. */
-      sp = (uint8_t *)strdata(str);
-      sid = CTID_A_CCHAR;
-      flags |= CCF_FROMTV;
-    }
-  } else if (tvistab(o)) {
-    if (ctype_isarray(d->info)) {
-      cconv_array_tab(cts, d, dp, tabV(o), flags);
-      return;
-    } else if (ctype_isstruct(d->info)) {
-      cconv_struct_tab(cts, d, dp, tabV(o), flags);
-      return;
-    } else {
-      goto err_conv;
-    }
-  } else if (tvisbool(o)) {
-    tmpbool = boolV(o);
-    sp = &tmpbool;
-    sid = CTID_BOOL;
-  } else if (tvisnil(o)) {
-    tmpptr = (void *)0;
-    flags |= CCF_FROMTV;
-  } else if (tvisudata(o)) {
-    tmpptr = uddata(udataV(o));
-  } else if (tvislightud(o)) {
-    tmpptr = lightudV(o);
-  } else if (tvisfunc(o)) {
-    void *p = lj_ccallback_new(cts, d, funcV(o));
-    if (p) {
-      *(void **)dp = p;
-      return;
-    }
-    goto err_conv;
-  } else {
-  err_conv:
-    cconv_err_convtv(cts, d, o, flags);
-  }
-  s = ctype_get(cts, sid);
-doconv:
-  if (ctype_isenum(d->info)) d = ctype_child(cts, d);
-  lj_cconv_ct_ct(cts, d, s, dp, sp, flags);
-}
-
-/* Convert TValue to bitfield. */
-void lj_cconv_bf_tv(CTState *cts, CType *d, uint8_t *dp, TValue *o)
-{
-  CTInfo info = d->info;
-  CTSize pos, bsz;
-  uint32_t val, mask;
-  lua_assert(ctype_isbitfield(info));
-  if ((info & CTF_BOOL)) {
-    uint8_t tmpbool;
-    lua_assert(ctype_bitbsz(info) == 1);
-    lj_cconv_ct_tv(cts, ctype_get(cts, CTID_BOOL), &tmpbool, o, 0);
-    val = tmpbool;
-  } else {
-    CTypeID did = (info & CTF_UNSIGNED) ? CTID_UINT32 : CTID_INT32;
-    lj_cconv_ct_tv(cts, ctype_get(cts, did), (uint8_t *)&val, o, 0);
-  }
-  pos = ctype_bitpos(info);
-  bsz = ctype_bitbsz(info);
-  lua_assert(pos < 8*ctype_bitcsz(info));
-  lua_assert(bsz > 0 && bsz <= 8*ctype_bitcsz(info));
-  /* Check if a packed bitfield crosses a container boundary. */
-  if (pos + bsz > 8*ctype_bitcsz(info))
-    lj_err_caller(cts->L, LJ_ERR_FFI_NYIPACKBIT);
-  mask = ((1u << bsz) - 1u) << pos;
-  val = (val << pos) & mask;
-  /* NYI: packed bitfields may cause misaligned reads/writes. */
-  switch (ctype_bitcsz(info)) {
-  case 4: *(uint32_t *)dp = (*(uint32_t *)dp & ~mask) | (uint32_t)val; break;
-  case 2: *(uint16_t *)dp = (*(uint16_t *)dp & ~mask) | (uint16_t)val; break;
-  case 1: *(uint8_t *)dp = (*(uint8_t *)dp & ~mask) | (uint8_t)val; break;
-  default: lua_assert(0); break;
-  }
-}
-
-/* -- Initialize C type with TValues -------------------------------------- */
-
-/* Initialize an array with TValues. */
-static void cconv_array_init(CTState *cts, CType *d, CTSize sz, uint8_t *dp,
-                             TValue *o, MSize len)
-{
-  CType *dc = ctype_rawchild(cts, d);  /* Array element type. */
-  CTSize ofs, esize = dc->size;
-  MSize i;
-  if (len*esize > sz)
-    cconv_err_initov(cts, d);
-  for (i = 0, ofs = 0; i < len; i++, ofs += esize)
-    lj_cconv_ct_tv(cts, dc, dp + ofs, o + i, 0);
-  if (ofs == esize) {  /* Replicate a single element. */
-    for (; ofs < sz; ofs += esize) memcpy(dp + ofs, dp, esize);
-  } else {  /* Otherwise fill the remainder with zero. */
-    memset(dp + ofs, 0, sz - ofs);
-  }
-}
-
-/* Initialize a sub-struct/union with TValues. */
-static void cconv_substruct_init(CTState *cts, CType *d, uint8_t *dp,
-                                 TValue *o, MSize len, MSize *ip)
-{
-  CTypeID id = d->sib;
-  while (id) {
-    CType *df = ctype_get(cts, id);
-    id = df->sib;
-    if (ctype_isfield(df->info) || ctype_isbitfield(df->info)) {
-      MSize i = *ip;
-      if (!gcref(df->name)) continue;  /* Ignore unnamed fields. */
-      if (i >= len) break;
-      *ip = i + 1;
-      if (ctype_isfield(df->info))
-        lj_cconv_ct_tv(cts, ctype_rawchild(cts, df), dp+df->size, o + i, 0);
-      else
-        lj_cconv_bf_tv(cts, df, dp+df->size, o + i);
-      if ((d->info & CTF_UNION)) break;
-    } else if (ctype_isxattrib(df->info, CTA_SUBTYPE)) {
-      cconv_substruct_init(cts, ctype_child(cts, df), dp+df->size, o, len, ip);
-    }  /* Ignore all other entries in the chain. */
-  }
-}
-
-/* Initialize a struct/union with TValues. */
-static void cconv_struct_init(CTState *cts, CType *d, CTSize sz, uint8_t *dp,
-                              TValue *o, MSize len)
-{
-  MSize i = 0;
-  memset(dp, 0, sz);  /* Much simpler to clear the struct first. */
-  cconv_substruct_init(cts, d, dp, o, len, &i);
-  if (i < len)
-    cconv_err_initov(cts, d);
-}
-
-/* Check whether to use a multi-value initializer.
-** This is true if an aggregate is to be initialized with a value.
-** Valarrays are treated as values here so ct_tv handles (V|C, I|F).
-*/
-int lj_cconv_multi_init(CType *d, TValue *o)
-{
-  if (!(ctype_isrefarray(d->info) || ctype_isstruct(d->info)))
-    return 0;  /* Destination is not an aggregate. */
-  if (tvistab(o) || (tvisstr(o) && !ctype_isstruct(d->info)))
-    return 0;  /* Initializer is not a value. */
-  return 1;  /* Otherwise the initializer is a value. */
-}
-
-/* Initialize C type with TValues. Caveat: expects to get the raw CType! */
-void lj_cconv_ct_init(CTState *cts, CType *d, CTSize sz,
-                      uint8_t *dp, TValue *o, MSize len)
-{
-  if (len == 0)
-    memset(dp, 0, sz);
-  else if (len == 1 && !lj_cconv_multi_init(d, o))
-    lj_cconv_ct_tv(cts, d, dp, o, 0);
-  else if (ctype_isarray(d->info))  /* Also handles valarray init with len>1. */
-    cconv_array_init(cts, d, sz, dp, o, len);
-  else if (ctype_isstruct(d->info))
-    cconv_struct_init(cts, d, sz, dp, o, len);
-  else
-    cconv_err_initov(cts, d);
-}
-
-#endif