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annotate third_party/luajit/src/lj_cconv.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 ** C type conversions.
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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_CCONV_H
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7 #define _LJ_CCONV_H
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8
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9 #include "lj_obj.h"
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10 #include "lj_ctype.h"
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11
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12 #if LJ_HASFFI
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13
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14 /* Compressed C type index. ORDER CCX. */
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15 enum {
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16 CCX_B, /* Bool. */
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17 CCX_I, /* Integer. */
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18 CCX_F, /* Floating-point number. */
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19 CCX_C, /* Complex. */
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20 CCX_V, /* Vector. */
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21 CCX_P, /* Pointer. */
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22 CCX_A, /* Refarray. */
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23 CCX_S /* Struct/union. */
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24 };
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25
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26 /* Convert C type info to compressed C type index. ORDER CT. ORDER CCX. */
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27 static LJ_AINLINE uint32_t cconv_idx(CTInfo info)
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28 {
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29 uint32_t idx = ((info >> 26) & 15u); /* Dispatch bits. */
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30 lj_assertX(ctype_type(info) <= CT_MAYCONVERT,
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31 "cannot convert ctype %08x", info);
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32 #if LJ_64
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33 idx = ((uint32_t)(U64x(f436fff5,fff7f021) >> 4*idx) & 15u);
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34 #else
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35 idx = (((idx < 8 ? 0xfff7f021u : 0xf436fff5) >> 4*(idx & 7u)) & 15u);
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36 #endif
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37 lj_assertX(idx < 8, "cannot convert ctype %08x", info);
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38 return idx;
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39 }
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40
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41 #define cconv_idx2(dinfo, sinfo) \
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42 ((cconv_idx((dinfo)) << 3) + cconv_idx((sinfo)))
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43
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44 #define CCX(dst, src) ((CCX_##dst << 3) + CCX_##src)
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45
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46 /* Conversion flags. */
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47 #define CCF_CAST 0x00000001u
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48 #define CCF_FROMTV 0x00000002u
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49 #define CCF_SAME 0x00000004u
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50 #define CCF_IGNQUAL 0x00000008u
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51
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52 #define CCF_ARG_SHIFT 8
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53 #define CCF_ARG(n) ((n) << CCF_ARG_SHIFT)
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54 #define CCF_GETARG(f) ((f) >> CCF_ARG_SHIFT)
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55
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56 LJ_FUNC int lj_cconv_compatptr(CTState *cts, CType *d, CType *s, CTInfo flags);
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57 LJ_FUNC void lj_cconv_ct_ct(CTState *cts, CType *d, CType *s,
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58 uint8_t *dp, uint8_t *sp, CTInfo flags);
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59 LJ_FUNC int lj_cconv_tv_ct(CTState *cts, CType *s, CTypeID sid,
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60 TValue *o, uint8_t *sp);
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61 LJ_FUNC int lj_cconv_tv_bf(CTState *cts, CType *s, TValue *o, uint8_t *sp);
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62 LJ_FUNC void lj_cconv_ct_tv(CTState *cts, CType *d,
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63 uint8_t *dp, TValue *o, CTInfo flags);
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64 LJ_FUNC void lj_cconv_bf_tv(CTState *cts, CType *d, uint8_t *dp, TValue *o);
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65 LJ_FUNC int lj_cconv_multi_init(CTState *cts, CType *d, TValue *o);
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66 LJ_FUNC void lj_cconv_ct_init(CTState *cts, CType *d, CTSize sz,
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67 uint8_t *dp, TValue *o, MSize len);
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68
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69 #endif
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70
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71 #endif