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annotate test/suite_aggrs/mk-cases.lua @ 461:236015fdf7a8

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suite_aggrs: - added support to gen unions in addition to structs - regenerated struct/union-mixed and nested cases - made rand-sig.lua ignore closing struct/union chars if not opened, effectively reducing number of empty aggregates as it now generated way too much
author Tassilo Philipp
date Mon, 31 Jan 2022 14:41:11 +0100
parents e59e381b4fca
children 653b65580cb4
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 require"math"
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2 local max = math.max
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3 local maxargs = 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)
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10 -- aggregate types start with special (closing) char
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11 c = ({ ['}'] = 'struct ', ['>'] = 'union ' })[t:sub(1,1)]
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12 if c ~= nil then
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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
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33 -- aggregate nest level change?
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34 if ch == '{' or ch == '<' then
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35 n_nest = n_nest + 1
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36 aggr[n_nest] = { }
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37 aggr_sig[n_nest] = ''
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38 end
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39
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40 aggr_sig[n_nest] = aggr_sig[n_nest]..ch
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41
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42 if ch == '}' or ch == '>' then
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43 -- register yet unseen aggregates, key is sig, val is body and name
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44 if seen_aggrs[aggr_sig[n_nest]] == nil then
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45 aggrs[#aggrs+1] = aggr_sig[n_nest]
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46 ch = ch..#aggrs
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47 seen_aggrs[aggr_sig[n_nest]] = { aggr[n_nest], ch }
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48 end
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49 ch = seen_aggrs[aggr_sig[n_nest]][2]
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50
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51 n_nest = n_nest - 1
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52 aggr_sig[n_nest] = aggr_sig[n_nest]..aggr_sig[n_nest+1]
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53 end
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54
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55 if ch ~= '{' and ch ~= '}' and ch ~= '<' and ch ~= '>' then
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56 aggr[n_nest][#aggr[n_nest]+1] = canon_type(ch)
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57 aggr[n_nest][#aggr[n_nest]+1] = 'm'..(#aggr[n_nest] >> 1)
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58 end
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61 if n_nest == 0 then
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62 h[#h+1] = canon_type(ch)
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63 -- aggregate types (more than one char) need copying via a func
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64 if #h[#h] > 1 then
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65 t[#t+1] = 'f_cp'..h[#h]:sub(8)..'(V_a['..pos.."],&"..name..");"
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66 else
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67 t[#t+1] = "V_"..ch.."["..pos.."]="..name..";"
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68 end
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70 -- is return type or func arg?
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71 if pos == 0 then
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72 h[#h+1] = " f"..id.."("
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73 h[#h+1] = ''
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74 t[#t] = '' -- clear; aggr return type handled explicitly
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75 else
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76 h[#h+1] = ' '..name
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77 h[#h+1] = ","
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78 end
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79
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80 pos = pos + 1
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81 end
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82 end
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83 maxargs = max(maxargs, pos-1)
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84 h[#h] = "){"
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85 if #h[6] == 1 then
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86 t[#t+1] = "ret_"..h[6].."("..(pos-1)..")}\n"
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87 else
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88 t[#t+1] = "ret_a("..(pos-1)..","..h[6]..")}\n"
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89 end
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90 return table.concat(h,"")..table.concat(t,"")
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91 end
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92
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93 function mkfuntab(n)
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94 local s = { "funptr G_funtab[] = {\n"}
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95 for i = 0, n-1 do
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96 s[#s+1] = "\t(funptr)&f"..i..",\n"
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97 end
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98 s[#s+1] = "};\n"
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99 return table.concat(s,"")
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100 end
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101
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102 function mksigtab(sigs)
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103 local s = { "char const * G_sigtab[] = {\n"}
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104 for k,v in pairs(sigs) do
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105 s[#s+1] = '\t"'..v..'",\n'
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106 end
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107 s[#s+1] = "};\n"
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108 return table.concat(s,"")
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109 end
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110
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111 function mkall()
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112 local lineno = 0
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113 local sigtab = { }
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114 local cases = ''
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115 for line in io.lines() do
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116 local sig = trim(line)
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117 cases = cases..mkcase(lineno,sig)
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118 sigtab[#sigtab+1] = sig
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119 lineno = lineno + 1
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120 end
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121
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122 agg_sizes = {}
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123 agg_sigs = {}
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124 agg_names = {}
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125 for a = 1, #aggrs do
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126 k = aggrs[a]
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127 v = seen_aggrs[k]
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128 st = canon_type(v[2])
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129
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130 agg_sizes[#agg_sizes + 1] = 'sizeof('..st..')'
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131 agg_sigs [#agg_sigs + 1] = k
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132 agg_names[#agg_names + 1] = st:sub(8)
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133
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134 -- aggregate def
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135 io.write('/* '..k..' */\n')
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136 io.write(st..' { ')
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137 for i = 1, #v[1], 2 do
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138 io.write(v[1][i]..' '..v[1][i+1]..'; ')
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139 end
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140 io.write("};\n")
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141
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142 -- aggregate cp and cmp funcs
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143 s = {
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144 'void f_cp'..st:sub(8)..'('..st..' *x, const '..st..' *y) { ',
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145 'int f_cmp'..st:sub(8)..'(const '..st..' *x, const '..st..' *y) { return '
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146 }
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147 o = { '=', '==', 'f_cp', 'f_cmp', '; ', ' && ', '', '1' }
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148 for t = 1, 2 do
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149 io.write(s[t])
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150 b = {}
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151 for i = 1, #v[1], 2 do
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152 if string.match(v[1][i], ' ') then -- aggregate canonical types contain at least one space
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153 b[#b+1] = o[t+2]..v[1][i]:sub(8)..'(&x->'..v[1][i+1]..', &y->'..v[1][i+1]..')';
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154 else
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155 b[#b+1] = 'x->'..v[1][i+1]..' '..o[t]..' y->'..v[1][i+1];
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156 end
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157 end
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158 if #b == 0 then -- to handle empty aggregates
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159 b[1] = o[t+6]
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160 end
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161 io.write(table.concat(b,o[t+4]).."; };\n")
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162 end
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163
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164 -- convenient dcnewstruct helper funcs
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165 io.write('DCstruct* f_touchdcst'..st:sub(8)..'() {\n\tstatic DCstruct* st = NULL;\n\tif(!st) {\n\t\tst = dcNewStruct('..(#v[1]>>1)..', sizeof('..st..'), DC_TRUE);\n\t\t')
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166 for i = 1, #v[1], 2 do
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167 if string.match(v[1][i], ' ') then -- aggregate canonical types contain at least one space
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168 io.write('dcStructField(st, DC_SIGCHAR_STRUCT, offsetof('..st..', '..v[1][i+1]..'), 1, f_touchdcst'..v[1][i]:sub(8)..'());\n\t\t')
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169 else
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170 io.write("dcStructField(st, '"..v[1][i].."', offsetof("..st..', '..v[1][i+1]..'), 1);\n\t\t')
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171 end
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172 end
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173 io.write("dcCloseStruct(st);\n\t}\n\treturn st;\n};\n")
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174 end
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175
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176 -- make table.concat work
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177 if #agg_names > 0 then
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178 table.insert(agg_names, 1, '')
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179 end
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180
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181 io.write(cases)
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182 io.write(mkfuntab(lineno))
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183 io.write(mksigtab(sigtab))
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184 io.write('const char* G_agg_sigs[] = {\n\t"'..table.concat(agg_sigs, '",\n\t"')..'"\n};\n')
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185 io.write('int G_agg_sizes[] = {\n\t'..table.concat(agg_sizes, ',\n\t')..'\n};\n')
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186 io.write('funptr G_agg_touchdcstfuncs[] = {'..string.sub(table.concat(agg_names, ',\n\t(funptr)&f_touchdcst'),2)..'\n};\n')
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187 io.write('funptr G_agg_cmpfuncs[] = {'..string.sub(table.concat(agg_names, ',\n\t(funptr)&f_cmp'),2)..'\n};\n')
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188 io.write("int G_maxargs = "..maxargs..";\n")
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189 end
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190
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191 mkall()
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192