Mercurial > pub > dyncall > dyncall
annotate test/suite_aggrs/mk-cases.lua @ 482:0f3b6898078d
suite_aggrs (still ahead of checked in version of dyncall, sorry):
- renaming struct -> aggr
- added knobs to:
* control struct packing
* whether to test immutability of aggr-by-val params
* how to copy aggrs (field by field or via = op (which might do a memcpy and thus copy padding garbage, also))
- some macros to reduce file sizes of generated cases
- setting default misalignment to 1
author | Tassilo Philipp |
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date | Wed, 16 Mar 2022 16:27:50 +0100 |
parents | 653b65580cb4 |
children |
rev | line source |
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1 require"config" |
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2 require"math" |
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3 local max_numargs = 0 |
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4 |
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5 local aggrs = { } |
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6 local seen_aggrs = { } |
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7 |
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8 |
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9 function canon_type(t) |
461 | 10 -- aggregate types start with special (closing) char |
11 c = ({ ['}'] = 'struct ', ['>'] = 'union ' })[t:sub(1,1)] | |
12 if c ~= nil then | |
13 return c..'A'..t:sub(2) | |
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14 end |
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15 return t |
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16 end |
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17 |
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18 function trim(l) return l:gsub("^%s+",""):gsub("%s+$","") end |
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19 function mkcase(id,sig) |
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20 local sig = trim(sig) |
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21 local h = { "/* ",id,":",sig," */ " } |
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22 local t = { "" } |
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23 local pos = 0 |
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24 local n_nest = 0 |
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25 local aggr = { } |
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26 local aggr_sig = { } |
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27 aggr[0] = { } -- non-sequential [0] collects all non-aggr types |
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28 aggr_sig[0] = '' |
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29 for i = 1, #sig do |
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30 local name = "a"..pos |
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31 local ch = sig:sub(i,i) |
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32 |
462 | 33 |
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34 -- aggregate nest level change? |
461 | 35 if ch == '{' or ch == '<' then |
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36 n_nest = n_nest + 1 |
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37 aggr[n_nest] = { } |
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38 aggr_sig[n_nest] = '' |
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39 end |
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40 |
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41 aggr_sig[n_nest] = aggr_sig[n_nest]..ch |
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42 |
462 | 43 -- array? Just append to name of member var from prev loop |
44 if ch:match('[%[%]0123456789]') ~= nil then | |
45 aggr[n_nest][#aggr[n_nest]] = aggr[n_nest][#aggr[n_nest]]..ch | |
46 else | |
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47 |
462 | 48 if ch == '}' or ch == '>' then |
49 -- register yet unseen aggregates, key is sig, val is body and name | |
50 if seen_aggrs[aggr_sig[n_nest]] == nil then | |
51 aggrs[#aggrs+1] = aggr_sig[n_nest] | |
52 ch = ch..#aggrs | |
53 seen_aggrs[aggr_sig[n_nest]] = { aggr[n_nest], ch } | |
54 end | |
55 ch = seen_aggrs[aggr_sig[n_nest]][2] | |
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56 |
462 | 57 n_nest = n_nest - 1 |
58 aggr_sig[n_nest] = aggr_sig[n_nest]..aggr_sig[n_nest+1] | |
59 end | |
60 | |
61 if ch ~= '{' and ch ~= '}' and ch ~= '<' and ch ~= '>' then | |
62 aggr[n_nest][#aggr[n_nest]+1] = canon_type(ch) | |
63 aggr[n_nest][#aggr[n_nest]+1] = 'm'..(#aggr[n_nest] >> 1) | |
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64 end |
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65 |
462 | 66 -- no nesting (= actual func args), generate case code |
67 if n_nest == 0 then | |
68 h[#h+1] = canon_type(ch) | |
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69 -- aggregate types have more than one |
462 | 70 if #h[#h] > 1 then |
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71 if aggrcpsimple then |
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72 t[#t+1] = '*('..h[#h]..'*)V_a['..pos.."]="..name..";" |
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73 else |
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74 t[#t+1] = 'f_cp'..h[#h]:sub(8)..'(V_a['..pos.."],&"..name..");" |
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75 end |
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76 if aggrmutabletest then |
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77 t[#t] = t[#t]..'memset(&'..name..',0,sizeof('..name..'));' |
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78 end |
462 | 79 else |
80 t[#t+1] = "V_"..ch.."["..pos.."]="..name..";" | |
81 end | |
82 | |
83 -- is return type or func arg? | |
84 if pos == 0 then | |
85 h[#h+1] = " f"..id.."(" | |
86 h[#h+1] = '' | |
87 t[#t] = '' -- clear; aggr return type handled explicitly | |
88 else | |
89 h[#h+1] = ' '..name | |
90 h[#h+1] = "," | |
91 end | |
92 | |
93 pos = pos + 1 | |
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94 end |
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95 end |
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96 end |
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97 max_numargs = math.max(max_numargs, pos-1) |
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98 h[#h] = "){" |
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99 if #h[6] == 1 then |
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100 t[#t+1] = "ret_"..h[6].."("..(pos-1)..")}\n" |
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101 else |
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102 t[#t+1] = "ret_a("..(pos-1)..","..h[6]..")}\n" |
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103 end |
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104 return table.concat(h,"")..table.concat(t,"") |
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105 end |
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106 |
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107 function mkfuntab(n) |
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108 local s = { "funptr G_funtab[] = {\n"} |
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109 for i = 0, n-1 do |
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110 s[#s+1] = "\t(funptr)&f"..i..",\n" |
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111 end |
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112 s[#s+1] = "};\n" |
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113 return table.concat(s,"") |
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114 end |
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115 |
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116 function mksigtab(sigs) |
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117 local s = { "char const * G_sigtab[] = {\n"} |
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118 for k,v in pairs(sigs) do |
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119 s[#s+1] = '\t"'..v..'",\n' |
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120 end |
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121 s[#s+1] = "};\n" |
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122 return table.concat(s,"") |
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123 end |
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124 |
462 | 125 function split_array_decl(s) |
126 local name = s | |
127 local n = nil -- not an array | |
128 local array_i = s:find('%[') | |
129 if array_i ~= nil then | |
130 name = name:sub(1, array_i-1) | |
131 n = tonumber(s:sub(array_i):match('[0123456789]+')) | |
132 end | |
133 return { name, n } | |
134 end | |
135 | |
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136 function mkall() |
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137 local lineno = 0 |
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138 local sigtab = { } |
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139 local cases = '' |
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140 for line in io.lines() do |
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141 local sig = trim(line) |
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142 cases = cases..mkcase(lineno,sig) |
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143 sigtab[#sigtab+1] = sig |
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144 lineno = lineno + 1 |
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145 end |
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146 |
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147 agg_sizes = {} |
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148 agg_sigs = {} |
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149 agg_names = {} |
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150 for a = 1, #aggrs do |
462 | 151 local k = aggrs[a] |
152 local v = seen_aggrs[k] | |
153 local at = canon_type(v[2]) -- aggregate type | |
154 local am = v[1] -- aggregate members | |
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155 |
462 | 156 agg_sizes[#agg_sizes + 1] = 'sizeof('..at..')' |
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157 agg_sigs [#agg_sigs + 1] = k |
462 | 158 agg_names[#agg_names + 1] = at:sub(8) |
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159 |
461 | 160 -- aggregate def |
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161 io.write('/* '..k..' */\n') |
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162 if aggrpacking ~= 0 then |
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163 local pack = aggrpacking |
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164 if pack < 0 then |
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165 pack = math.floor(math.pow(2,math.floor(math.log(math.random(math.abs(pack)),2)))) |
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166 end |
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167 io.write('#pragma pack(push,'..pack..')\n') |
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168 end |
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169 |
462 | 170 io.write(at..' { ') |
171 for i = 1, #am, 2 do | |
172 io.write(am[i]..' '..am[i+1]..'; ') | |
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173 end |
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174 io.write("};\n") |
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175 |
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176 if aggrpacking ~= 0 then |
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177 io.write('#pragma pack(pop)\n') |
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178 end |
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179 |
461 | 180 -- aggregate cp and cmp funcs |
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181 s = { |
462 | 182 'void f_cp'..at:sub(8)..'('..at..' *x, const '..at..' *y) { ', |
183 'int f_cmp'..at:sub(8)..'(const '..at..' *x, const '..at..' *y) { return ' | |
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184 } |
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185 o = { '=', '==', 'f_cp', 'f_cmp', '; ', ' && ', '', '1' } |
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186 for t = 1, 2 do |
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187 if t ~= 1 or aggrcpsimple == false then |
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188 io.write(s[t]) |
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189 local b = {} |
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190 for i = 1, #am, 2 do |
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191 local m = split_array_decl(am[i+1]) |
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192 local fmt = '' |
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193 if m[2] ~= nil then -- need array suffixes? |
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194 fmt = '[%d]' |
462 | 195 else |
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196 m[2] = 1 |
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197 end |
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198 |
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199 for j = 1, m[2] do |
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200 name = m[1]..string.format(fmt, j-1) |
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201 if string.match(am[i], ' ') then -- aggregate canonical types contain at least one space |
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202 b[#b+1] = o[t+2]..am[i]:sub(8)..'(&x->'..name..', &y->'..name..')' |
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203 else |
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204 b[#b+1] = 'x->'..name..' '..o[t]..' y->'..name |
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205 end |
462 | 206 end |
207 end | |
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208 if #b == 0 then -- to handle empty aggregates |
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209 b[1] = o[t+6] |
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210 end |
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211 io.write(table.concat(b,o[t+4]).."; };\n") |
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212 end |
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213 end |
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214 |
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215 -- convenient dcnewstruct helper funcs |
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216 io.write('DCaggr* f_touchdcst'..at:sub(8)..'() {\n\tstatic DCaggr* at = NULL;\n\tif(!at) {\n\t\tat = dcNewAggr('..(#am>>1)..', sizeof('..at..'), DC_TRUE);\n\t\t') |
462 | 217 for i = 1, #am, 2 do |
218 local m = split_array_decl(am[i+1]) | |
219 if m[2] == nil then -- need array suffixes? | |
220 m[2] = 1 | |
221 end | |
222 if string.match(am[i], ' ') then -- aggregate canonical types contain at least one space | |
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223 --io.write('dcAggrField(at, DC_SIGCHAR_AGGREGATE, offsetof('..at..', '..m[1]..'), '..m[2]..', f_touchdcst'..am[i]:sub(8)..'());\n\t\t') |
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224 io.write("AFa("..at..','..m[1]..','..m[2]..','..am[i]:sub(8)..')\n\t\t') |
462 | 225 else |
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226 --io.write("dcAggrField(at, '"..am[i].."', offsetof("..at..', '..m[1]..'), '..m[2]..');\n\t\t') |
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227 io.write("AF('"..am[i].."',"..at..','..m[1]..','..m[2]..')\n\t\t') |
462 | 228 end |
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229 end |
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230 io.write("dcCloseAggr(at);\n\t}\n\treturn at;\n};\n") |
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231 end |
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232 |
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233 -- make table.concat work |
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234 if #agg_names > 0 then |
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235 table.insert(agg_names, 1, '') |
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236 end |
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237 |
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238 io.write(cases) |
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239 io.write(mkfuntab(lineno)) |
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240 io.write(mksigtab(sigtab)) |
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241 io.write('const char* G_agg_sigs[] = {\n\t"'..table.concat(agg_sigs, '",\n\t"')..'"\n};\n') |
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242 io.write('int G_agg_sizes[] = {\n\t'..table.concat(agg_sizes, ',\n\t')..'\n};\n') |
438 | 243 io.write('funptr G_agg_touchdcstfuncs[] = {'..string.sub(table.concat(agg_names, ',\n\t(funptr)&f_touchdcst'),2)..'\n};\n') |
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244 io.write('funptr G_agg_cmpfuncs[] = {'..string.sub(table.concat(agg_names, ',\n\t(funptr)&f_cmp'),2)..'\n};\n') |
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245 io.write("int G_maxargs = "..max_numargs..";\n") |
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246 end |
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247 |
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248 math.randomseed(seed) |
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249 mkall() |
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250 |