annotate third_party/luajit/src/lj_ctype.h @ 211:a6d8d32a0261

[MrJuneJune] Simple animations for darkmode.
author MrJuneJune <me@mrjunejune.com>
date Sun, 15 Feb 2026 21:38:23 -0800
parents 94705b5986b3
children
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1 /*
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2 ** C type management.
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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_CTYPE_H
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7 #define _LJ_CTYPE_H
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8
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9 #include "lj_obj.h"
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10 #include "lj_gc.h"
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11
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12 #if LJ_HASFFI
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13
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14 /* -- C type definitions -------------------------------------------------- */
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15
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16 /* C type numbers. Highest 4 bits of C type info. ORDER CT. */
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17 enum {
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18 /* Externally visible types. */
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19 CT_NUM, /* Integer or floating-point numbers. */
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20 CT_STRUCT, /* Struct or union. */
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21 CT_PTR, /* Pointer or reference. */
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22 CT_ARRAY, /* Array or complex type. */
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23 CT_MAYCONVERT = CT_ARRAY,
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24 CT_VOID, /* Void type. */
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25 CT_ENUM, /* Enumeration. */
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26 CT_HASSIZE = CT_ENUM, /* Last type where ct->size holds the actual size. */
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27 CT_FUNC, /* Function. */
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28 CT_TYPEDEF, /* Typedef. */
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29 CT_ATTRIB, /* Miscellaneous attributes. */
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30 /* Internal element types. */
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31 CT_FIELD, /* Struct/union field or function parameter. */
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32 CT_BITFIELD, /* Struct/union bitfield. */
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33 CT_CONSTVAL, /* Constant value. */
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34 CT_EXTERN, /* External reference. */
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35 CT_KW /* Keyword. */
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36 };
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37
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38 LJ_STATIC_ASSERT(((int)CT_PTR & (int)CT_ARRAY) == CT_PTR);
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39 LJ_STATIC_ASSERT(((int)CT_STRUCT & (int)CT_ARRAY) == CT_STRUCT);
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40
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41 /*
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42 ** ---------- info ------------
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43 ** |type flags... A cid | size | sib | next | name |
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44 ** +----------------------------+--------+-------+-------+-------+--
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45 ** |NUM BFcvUL.. A | size | | type | |
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46 ** |STRUCT ..cvU..V A | size | field | name? | name? |
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47 ** |PTR ..cvR... A cid | size | | type | |
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48 ** |ARRAY VCcv...V A cid | size | | type | |
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49 ** |VOID ..cv.... A | size | | type | |
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50 ** |ENUM A cid | size | const | name? | name? |
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51 ** |FUNC ....VS.. cc cid | nargs | field | name? | name? |
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52 ** |TYPEDEF cid | | | name | name |
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53 ** |ATTRIB attrnum cid | attr | sib? | type? | |
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54 ** |FIELD cid | offset | field | | name? |
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55 ** |BITFIELD B.cvU csz bsz pos | offset | field | | name? |
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56 ** |CONSTVAL c cid | value | const | name | name |
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57 ** |EXTERN cid | | sib? | name | name |
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58 ** |KW tok | size | | name | name |
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59 ** +----------------------------+--------+-------+-------+-------+--
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60 ** ^^ ^^--- bits used for C type conversion dispatch
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61 */
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62
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63 /* C type info flags. TFFArrrr */
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64 #define CTF_BOOL 0x08000000u /* Boolean: NUM, BITFIELD. */
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65 #define CTF_FP 0x04000000u /* Floating-point: NUM. */
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66 #define CTF_CONST 0x02000000u /* Const qualifier. */
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67 #define CTF_VOLATILE 0x01000000u /* Volatile qualifier. */
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68 #define CTF_UNSIGNED 0x00800000u /* Unsigned: NUM, BITFIELD. */
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69 #define CTF_LONG 0x00400000u /* Long: NUM. */
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70 #define CTF_VLA 0x00100000u /* Variable-length: ARRAY, STRUCT. */
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71 #define CTF_REF 0x00800000u /* Reference: PTR. */
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72 #define CTF_VECTOR 0x08000000u /* Vector: ARRAY. */
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73 #define CTF_COMPLEX 0x04000000u /* Complex: ARRAY. */
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74 #define CTF_UNION 0x00800000u /* Union: STRUCT. */
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75 #define CTF_VARARG 0x00800000u /* Vararg: FUNC. */
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76 #define CTF_SSEREGPARM 0x00400000u /* SSE register parameters: FUNC. */
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77
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78 #define CTF_QUAL (CTF_CONST|CTF_VOLATILE)
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79 #define CTF_ALIGN (CTMASK_ALIGN<<CTSHIFT_ALIGN)
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80 #define CTF_UCHAR ((char)-1 > 0 ? CTF_UNSIGNED : 0)
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81
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82 /* Flags used in parser. .F.Ammvf cp->attr */
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83 #define CTFP_ALIGNED 0x00000001u /* cp->attr + ALIGN */
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84 #define CTFP_PACKED 0x00000002u /* cp->attr */
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85 /* ...C...f cp->fattr */
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86 #define CTFP_CCONV 0x00000001u /* cp->fattr + CCONV/[SSE]REGPARM */
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87
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88 /* C type info bitfields. */
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89 #define CTMASK_CID 0x0000ffffu /* Max. 65536 type IDs. */
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90 #define CTMASK_NUM 0xf0000000u /* Max. 16 type numbers. */
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91 #define CTSHIFT_NUM 28
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92 #define CTMASK_ALIGN 15 /* Max. alignment is 2^15. */
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93 #define CTSHIFT_ALIGN 16
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94 #define CTMASK_ATTRIB 255 /* Max. 256 attributes. */
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95 #define CTSHIFT_ATTRIB 16
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96 #define CTMASK_CCONV 3 /* Max. 4 calling conventions. */
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97 #define CTSHIFT_CCONV 16
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98 #define CTMASK_REGPARM 3 /* Max. 0-3 regparms. */
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99 #define CTSHIFT_REGPARM 18
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100 /* Bitfields only used in parser. */
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101 #define CTMASK_VSIZEP 15 /* Max. vector size is 2^15. */
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102 #define CTSHIFT_VSIZEP 4
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103 #define CTMASK_MSIZEP 255 /* Max. type size (via mode) is 128. */
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104 #define CTSHIFT_MSIZEP 8
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105
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106 /* Info bits for BITFIELD. Max. size of bitfield is 64 bits. */
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107 #define CTBSZ_MAX 32 /* Max. size of bitfield is 32 bit. */
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108 #define CTBSZ_FIELD 127 /* Temp. marker for regular field. */
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109 #define CTMASK_BITPOS 127
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110 #define CTMASK_BITBSZ 127
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111 #define CTMASK_BITCSZ 127
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112 #define CTSHIFT_BITPOS 0
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113 #define CTSHIFT_BITBSZ 8
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114 #define CTSHIFT_BITCSZ 16
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115
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116 #define CTF_INSERT(info, field, val) \
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117 info = (info & ~(CTMASK_##field<<CTSHIFT_##field)) | \
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118 (((CTSize)(val) & CTMASK_##field) << CTSHIFT_##field)
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119
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120 /* Calling conventions. ORDER CC */
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121 enum { CTCC_CDECL, CTCC_THISCALL, CTCC_FASTCALL, CTCC_STDCALL };
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122
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123 /* Attribute numbers. */
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124 enum {
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125 CTA_NONE, /* Ignored attribute. Must be zero. */
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126 CTA_QUAL, /* Unmerged qualifiers. */
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127 CTA_ALIGN, /* Alignment override. */
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128 CTA_SUBTYPE, /* Transparent sub-type. */
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129 CTA_REDIR, /* Redirected symbol name. */
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130 CTA_BAD, /* To catch bad IDs. */
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131 CTA__MAX
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132 };
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133
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134 /* Special sizes. */
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135 #define CTSIZE_INVALID 0xffffffffu
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136
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137 typedef uint32_t CTInfo; /* Type info. */
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138 typedef uint32_t CTSize; /* Type size. */
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139 typedef uint32_t CTypeID; /* Type ID. */
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140 typedef uint16_t CTypeID1; /* Minimum-sized type ID. */
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141
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142 /* C type table element. */
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143 typedef struct CType {
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144 CTInfo info; /* Type info. */
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145 CTSize size; /* Type size or other info. */
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146 CTypeID1 sib; /* Sibling element. */
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147 CTypeID1 next; /* Next element in hash chain. */
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148 GCRef name; /* Element name (GCstr). */
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149 } CType;
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150
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151 #define CTHASH_SIZE 128 /* Number of hash anchors. */
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152 #define CTHASH_MASK (CTHASH_SIZE-1)
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153
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154 /* Simplify target-specific configuration. Checked in lj_ccall.h. */
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155 #define CCALL_MAX_GPR 8
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156 #define CCALL_MAX_FPR 8
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157
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158 typedef LJ_ALIGN(8) union FPRCBArg { double d; float f[2]; } FPRCBArg;
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159
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160 /* C callback state. Defined here, to avoid dragging in lj_ccall.h. */
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161
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162 typedef LJ_ALIGN(8) struct CCallback {
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163 FPRCBArg fpr[CCALL_MAX_FPR]; /* Arguments/results in FPRs. */
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164 intptr_t gpr[CCALL_MAX_GPR]; /* Arguments/results in GPRs. */
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165 intptr_t *stack; /* Pointer to arguments on stack. */
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166 void *mcode; /* Machine code for callback func. pointers. */
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167 CTypeID1 *cbid; /* Callback type table. */
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168 MSize sizeid; /* Size of callback type table. */
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169 MSize topid; /* Highest unused callback type table slot. */
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170 MSize slot; /* Current callback slot. */
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171 } CCallback;
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172
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173 /* C type state. */
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174 typedef struct CTState {
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175 CType *tab; /* C type table. */
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176 CTypeID top; /* Current top of C type table. */
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177 MSize sizetab; /* Size of C type table. */
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178 lua_State *L; /* Lua state (needed for errors and allocations). */
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179 global_State *g; /* Global state. */
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180 GCtab *finalizer; /* Map of cdata to finalizer. */
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181 GCtab *miscmap; /* Map of -CTypeID to metatable and cb slot to func. */
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182 CCallback cb; /* Temporary callback state. */
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183 CTypeID1 hash[CTHASH_SIZE]; /* Hash anchors for C type table. */
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184 } CTState;
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185
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186 #define CTINFO(ct, flags) (((CTInfo)(ct) << CTSHIFT_NUM) + (flags))
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187 #define CTALIGN(al) ((CTSize)(al) << CTSHIFT_ALIGN)
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188 #define CTATTRIB(at) ((CTInfo)(at) << CTSHIFT_ATTRIB)
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189
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190 #define ctype_type(info) ((info) >> CTSHIFT_NUM)
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191 #define ctype_cid(info) ((CTypeID)((info) & CTMASK_CID))
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192 #define ctype_align(info) (((info) >> CTSHIFT_ALIGN) & CTMASK_ALIGN)
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193 #define ctype_attrib(info) (((info) >> CTSHIFT_ATTRIB) & CTMASK_ATTRIB)
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194 #define ctype_bitpos(info) (((info) >> CTSHIFT_BITPOS) & CTMASK_BITPOS)
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195 #define ctype_bitbsz(info) (((info) >> CTSHIFT_BITBSZ) & CTMASK_BITBSZ)
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196 #define ctype_bitcsz(info) (((info) >> CTSHIFT_BITCSZ) & CTMASK_BITCSZ)
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197 #define ctype_vsizeP(info) (((info) >> CTSHIFT_VSIZEP) & CTMASK_VSIZEP)
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198 #define ctype_msizeP(info) (((info) >> CTSHIFT_MSIZEP) & CTMASK_MSIZEP)
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199 #define ctype_cconv(info) (((info) >> CTSHIFT_CCONV) & CTMASK_CCONV)
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200
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201 /* Simple type checks. */
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202 #define ctype_isnum(info) (ctype_type((info)) == CT_NUM)
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203 #define ctype_isvoid(info) (ctype_type((info)) == CT_VOID)
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204 #define ctype_isptr(info) (ctype_type((info)) == CT_PTR)
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205 #define ctype_isarray(info) (ctype_type((info)) == CT_ARRAY)
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206 #define ctype_isstruct(info) (ctype_type((info)) == CT_STRUCT)
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207 #define ctype_isfunc(info) (ctype_type((info)) == CT_FUNC)
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208 #define ctype_isenum(info) (ctype_type((info)) == CT_ENUM)
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209 #define ctype_istypedef(info) (ctype_type((info)) == CT_TYPEDEF)
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210 #define ctype_isattrib(info) (ctype_type((info)) == CT_ATTRIB)
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211 #define ctype_isfield(info) (ctype_type((info)) == CT_FIELD)
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212 #define ctype_isbitfield(info) (ctype_type((info)) == CT_BITFIELD)
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213 #define ctype_isconstval(info) (ctype_type((info)) == CT_CONSTVAL)
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214 #define ctype_isextern(info) (ctype_type((info)) == CT_EXTERN)
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215 #define ctype_hassize(info) (ctype_type((info)) <= CT_HASSIZE)
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216
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217 /* Combined type and flag checks. */
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218 #define ctype_isinteger(info) \
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219 (((info) & (CTMASK_NUM|CTF_BOOL|CTF_FP)) == CTINFO(CT_NUM, 0))
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220 #define ctype_isinteger_or_bool(info) \
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221 (((info) & (CTMASK_NUM|CTF_FP)) == CTINFO(CT_NUM, 0))
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222 #define ctype_isbool(info) \
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223 (((info) & (CTMASK_NUM|CTF_BOOL)) == CTINFO(CT_NUM, CTF_BOOL))
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224 #define ctype_isfp(info) \
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225 (((info) & (CTMASK_NUM|CTF_FP)) == CTINFO(CT_NUM, CTF_FP))
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226
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227 #define ctype_ispointer(info) \
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228 ((ctype_type(info) >> 1) == (CT_PTR >> 1)) /* Pointer or array. */
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229 #define ctype_isref(info) \
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230 (((info) & (CTMASK_NUM|CTF_REF)) == CTINFO(CT_PTR, CTF_REF))
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231
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232 #define ctype_isrefarray(info) \
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233 (((info) & (CTMASK_NUM|CTF_VECTOR|CTF_COMPLEX)) == CTINFO(CT_ARRAY, 0))
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234 #define ctype_isvector(info) \
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235 (((info) & (CTMASK_NUM|CTF_VECTOR)) == CTINFO(CT_ARRAY, CTF_VECTOR))
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236 #define ctype_iscomplex(info) \
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237 (((info) & (CTMASK_NUM|CTF_COMPLEX)) == CTINFO(CT_ARRAY, CTF_COMPLEX))
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238
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239 #define ctype_isvltype(info) \
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240 (((info) & ((CTMASK_NUM|CTF_VLA) - (2u<<CTSHIFT_NUM))) == \
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241 CTINFO(CT_STRUCT, CTF_VLA)) /* VL array or VL struct. */
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242 #define ctype_isvlarray(info) \
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243 (((info) & (CTMASK_NUM|CTF_VLA)) == CTINFO(CT_ARRAY, CTF_VLA))
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244
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245 #define ctype_isxattrib(info, at) \
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246 (((info) & (CTMASK_NUM|CTATTRIB(CTMASK_ATTRIB))) == \
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247 CTINFO(CT_ATTRIB, CTATTRIB(at)))
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248
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249 /* Target-dependent sizes and alignments. */
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250 #if LJ_64
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251 #define CTSIZE_PTR 8
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252 #define CTALIGN_PTR CTALIGN(3)
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253 #else
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254 #define CTSIZE_PTR 4
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255 #define CTALIGN_PTR CTALIGN(2)
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256 #endif
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257
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258 #define CTINFO_REF(ref) \
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259 CTINFO(CT_PTR, (CTF_CONST|CTF_REF|CTALIGN_PTR) + (ref))
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260
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261 #define CT_MEMALIGN 3 /* Alignment guaranteed by memory allocator. */
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262
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263 #ifdef LUA_USE_ASSERT
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264 #define lj_assertCTS(c, ...) (lj_assertG_(cts->g, (c), __VA_ARGS__))
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265 #else
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266 #define lj_assertCTS(c, ...) ((void)cts)
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267 #endif
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268
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269 /* -- Predefined types ---------------------------------------------------- */
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270
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271 /* Target-dependent types. */
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272 #if LJ_TARGET_PPC
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273 #define CTTYDEFP(_) \
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274 _(LINT32, 4, CT_NUM, CTF_LONG|CTALIGN(2))
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275 #else
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276 #define CTTYDEFP(_)
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277 #endif
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278
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279 /* Common types. */
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280 #define CTTYDEF(_) \
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281 _(NONE, 0, CT_ATTRIB, CTATTRIB(CTA_BAD)) \
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282 _(VOID, -1, CT_VOID, CTALIGN(0)) \
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283 _(CVOID, -1, CT_VOID, CTF_CONST|CTALIGN(0)) \
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284 _(BOOL, 1, CT_NUM, CTF_BOOL|CTF_UNSIGNED|CTALIGN(0)) \
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285 _(CCHAR, 1, CT_NUM, CTF_CONST|CTF_UCHAR|CTALIGN(0)) \
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286 _(INT8, 1, CT_NUM, CTALIGN(0)) \
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287 _(UINT8, 1, CT_NUM, CTF_UNSIGNED|CTALIGN(0)) \
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288 _(INT16, 2, CT_NUM, CTALIGN(1)) \
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289 _(UINT16, 2, CT_NUM, CTF_UNSIGNED|CTALIGN(1)) \
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290 _(INT32, 4, CT_NUM, CTALIGN(2)) \
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291 _(UINT32, 4, CT_NUM, CTF_UNSIGNED|CTALIGN(2)) \
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292 _(INT64, 8, CT_NUM, CTF_LONG|CTALIGN(3)) \
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293 _(UINT64, 8, CT_NUM, CTF_UNSIGNED|CTF_LONG|CTALIGN(3)) \
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294 _(FLOAT, 4, CT_NUM, CTF_FP|CTALIGN(2)) \
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295 _(DOUBLE, 8, CT_NUM, CTF_FP|CTALIGN(3)) \
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296 _(COMPLEX_FLOAT, 8, CT_ARRAY, CTF_COMPLEX|CTALIGN(2)|CTID_FLOAT) \
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297 _(COMPLEX_DOUBLE, 16, CT_ARRAY, CTF_COMPLEX|CTALIGN(3)|CTID_DOUBLE) \
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298 _(P_VOID, CTSIZE_PTR, CT_PTR, CTALIGN_PTR|CTID_VOID) \
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299 _(P_CVOID, CTSIZE_PTR, CT_PTR, CTALIGN_PTR|CTID_CVOID) \
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300 _(P_CCHAR, CTSIZE_PTR, CT_PTR, CTALIGN_PTR|CTID_CCHAR) \
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301 _(P_UINT8, CTSIZE_PTR, CT_PTR, CTALIGN_PTR|CTID_UINT8) \
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302 _(A_CCHAR, -1, CT_ARRAY, CTF_CONST|CTALIGN(0)|CTID_CCHAR) \
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303 _(CTYPEID, 4, CT_ENUM, CTALIGN(2)|CTID_INT32) \
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304 CTTYDEFP(_) \
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305 /* End of type list. */
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306
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307 /* Public predefined type IDs. */
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308 enum {
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309 #define CTTYIDDEF(id, sz, ct, info) CTID_##id,
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310 CTTYDEF(CTTYIDDEF)
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311 #undef CTTYIDDEF
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312 /* Predefined typedefs and keywords follow. */
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313 CTID_MAX = 65536
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314 };
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315
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316 /* Target-dependent type IDs. */
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317 #if LJ_64
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318 #define CTID_INT_PSZ CTID_INT64
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319 #define CTID_UINT_PSZ CTID_UINT64
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320 #else
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321 #define CTID_INT_PSZ CTID_INT32
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322 #define CTID_UINT_PSZ CTID_UINT32
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323 #endif
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324
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325 #if LJ_ABI_WIN
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326 #define CTID_WCHAR CTID_UINT16
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327 #elif LJ_TARGET_PPC
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328 #define CTID_WCHAR CTID_LINT32
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329 #else
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330 #define CTID_WCHAR CTID_INT32
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331 #endif
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332
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333 /* -- C tokens and keywords ----------------------------------------------- */
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334
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335 /* C lexer keywords. */
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336 #define CTOKDEF(_) \
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337 _(IDENT, "<identifier>") _(STRING, "<string>") \
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338 _(INTEGER, "<integer>") _(EOF, "<eof>") \
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339 _(OROR, "||") _(ANDAND, "&&") _(EQ, "==") _(NE, "!=") \
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340 _(LE, "<=") _(GE, ">=") _(SHL, "<<") _(SHR, ">>") _(DEREF, "->")
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341
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342 /* Simple declaration specifiers. */
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343 #define CDSDEF(_) \
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344 _(VOID) _(BOOL) _(CHAR) _(INT) _(FP) \
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345 _(LONG) _(LONGLONG) _(SHORT) _(COMPLEX) _(SIGNED) _(UNSIGNED) \
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346 _(CONST) _(VOLATILE) _(RESTRICT) _(INLINE) \
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347 _(TYPEDEF) _(EXTERN) _(STATIC) _(AUTO) _(REGISTER)
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348
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349 /* C keywords. */
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350 #define CKWDEF(_) \
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351 CDSDEF(_) _(EXTENSION) _(ASM) _(ATTRIBUTE) \
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352 _(DECLSPEC) _(CCDECL) _(PTRSZ) \
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353 _(STRUCT) _(UNION) _(ENUM) \
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354 _(SIZEOF) _(ALIGNOF)
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355
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356 /* C token numbers. */
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357 enum {
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358 CTOK_OFS = 255,
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359 #define CTOKNUM(name, sym) CTOK_##name,
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360 #define CKWNUM(name) CTOK_##name,
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361 CTOKDEF(CTOKNUM)
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362 CKWDEF(CKWNUM)
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363 #undef CTOKNUM
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364 #undef CKWNUM
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365 CTOK_FIRSTDECL = CTOK_VOID,
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366 CTOK_FIRSTSCL = CTOK_TYPEDEF,
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367 CTOK_LASTDECLFLAG = CTOK_REGISTER,
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diff changeset
368 CTOK_LASTDECL = CTOK_ENUM
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369 };
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370
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371 /* Declaration specifier flags. */
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372 enum {
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373 #define CDSFLAG(name) CDF_##name = (1u << (CTOK_##name - CTOK_FIRSTDECL)),
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374 CDSDEF(CDSFLAG)
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375 #undef CDSFLAG
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376 CDF__END
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377 };
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378
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379 #define CDF_SCL (CDF_TYPEDEF|CDF_EXTERN|CDF_STATIC|CDF_AUTO|CDF_REGISTER)
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380
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381 /* -- C type management --------------------------------------------------- */
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382
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383 #define ctype_ctsG(g) (mref((g)->ctype_state, CTState))
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384
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385 /* Get C type state. */
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386 static LJ_AINLINE CTState *ctype_cts(lua_State *L)
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387 {
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388 CTState *cts = ctype_ctsG(G(L));
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389 cts->L = L; /* Save L for errors and allocations. */
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390 return cts;
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391 }
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392
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393 /* Load FFI library on-demand. */
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394 #define ctype_loadffi(L) \
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395 do { \
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396 if (!ctype_ctsG(G(L))) { \
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397 ptrdiff_t oldtop = (char *)L->top - mref(L->stack, char); \
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398 luaopen_ffi(L); \
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399 L->top = (TValue *)(mref(L->stack, char) + oldtop); \
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400 } \
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401 } while (0)
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402
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403 /* Save and restore state of C type table. */
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404 #define LJ_CTYPE_SAVE(cts) CTState savects_ = *(cts)
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405 #define LJ_CTYPE_RESTORE(cts) \
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406 ((cts)->top = savects_.top, \
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407 memcpy((cts)->hash, savects_.hash, sizeof(savects_.hash)))
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408
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409 /* Check C type ID for validity when assertions are enabled. */
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410 static LJ_AINLINE CTypeID ctype_check(CTState *cts, CTypeID id)
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411 {
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412 UNUSED(cts);
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413 lj_assertCTS(id > 0 && id < cts->top, "bad CTID %d", id);
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414 return id;
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415 }
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416
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diff changeset
417 /* Get C type for C type ID. */
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418 static LJ_AINLINE CType *ctype_get(CTState *cts, CTypeID id)
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419 {
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420 return &cts->tab[ctype_check(cts, id)];
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421 }
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422
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423 /* Get C type ID for a C type. */
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424 #define ctype_typeid(cts, ct) ((CTypeID)((ct) - (cts)->tab))
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425
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426 /* Get child C type. */
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427 static LJ_AINLINE CType *ctype_child(CTState *cts, CType *ct)
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428 {
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429 lj_assertCTS(!(ctype_isvoid(ct->info) || ctype_isstruct(ct->info) ||
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430 ctype_isbitfield(ct->info)),
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431 "ctype %08x has no children", ct->info);
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432 return ctype_get(cts, ctype_cid(ct->info));
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433 }
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434
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435 /* Get raw type for a C type ID. */
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436 static LJ_AINLINE CType *ctype_raw(CTState *cts, CTypeID id)
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437 {
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438 CType *ct = ctype_get(cts, id);
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439 while (ctype_isattrib(ct->info)) ct = ctype_child(cts, ct);
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440 return ct;
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441 }
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442
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443 /* Get raw type of the child of a C type. */
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444 static LJ_AINLINE CType *ctype_rawchild(CTState *cts, CType *ct)
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445 {
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446 do { ct = ctype_child(cts, ct); } while (ctype_isattrib(ct->info));
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447 return ct;
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448 }
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449
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450 /* Set the name of a C type table element. */
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451 static LJ_AINLINE void ctype_setname(CType *ct, GCstr *s)
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452 {
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453 /* NOBARRIER: mark string as fixed -- the C type table is never collected. */
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454 fixstring(s);
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455 setgcref(ct->name, obj2gco(s));
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456 }
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457
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458 LJ_FUNC CTypeID lj_ctype_new(CTState *cts, CType **ctp);
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459 LJ_FUNC CTypeID lj_ctype_intern(CTState *cts, CTInfo info, CTSize size);
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460 LJ_FUNC void lj_ctype_addname(CTState *cts, CType *ct, CTypeID id);
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461 LJ_FUNC CTypeID lj_ctype_getname(CTState *cts, CType **ctp, GCstr *name,
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462 uint32_t tmask);
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463 LJ_FUNC CType *lj_ctype_getfieldq(CTState *cts, CType *ct, GCstr *name,
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464 CTSize *ofs, CTInfo *qual);
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465 #define lj_ctype_getfield(cts, ct, name, ofs) \
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466 lj_ctype_getfieldq((cts), (ct), (name), (ofs), NULL)
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467 LJ_FUNC CType *lj_ctype_rawref(CTState *cts, CTypeID id);
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468 LJ_FUNC CTSize lj_ctype_size(CTState *cts, CTypeID id);
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469 LJ_FUNC CTSize lj_ctype_vlsize(CTState *cts, CType *ct, CTSize nelem);
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470 LJ_FUNC CTInfo lj_ctype_info(CTState *cts, CTypeID id, CTSize *szp);
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471 LJ_FUNC CTInfo lj_ctype_info_raw(CTState *cts, CTypeID id, CTSize *szp);
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472 LJ_FUNC cTValue *lj_ctype_meta(CTState *cts, CTypeID id, MMS mm);
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diff changeset
473 LJ_FUNC GCstr *lj_ctype_repr(lua_State *L, CTypeID id, GCstr *name);
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474 LJ_FUNC GCstr *lj_ctype_repr_int64(lua_State *L, uint64_t n, int isunsigned);
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475 LJ_FUNC GCstr *lj_ctype_repr_complex(lua_State *L, void *sp, CTSize size);
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diff changeset
476 LJ_FUNC CTState *lj_ctype_init(lua_State *L);
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diff changeset
477 LJ_FUNC void lj_ctype_freestate(global_State *g);
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478
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diff changeset
479 #endif
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480
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481 #endif