| 1 | #! perl |
1 | #! perl |
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2 | |
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3 | # used to automatically create accessors/mutators and method interfaces |
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4 | # to C++ classes for Perl. |
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5 | # also write data structures as JSON object, for reflection |
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6 | |
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7 | use JSON::XS; |
| 2 | |
8 | |
| 3 | my $class = shift; |
9 | my $class = shift; |
| 4 | my $curclass = ""; |
10 | my $curclass = ""; |
| 5 | my @member; |
11 | my (@scalar_member, @array_member); |
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12 | |
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13 | # convert c member name to perl |
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14 | sub c2perl($) { |
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15 | local $_ = shift; |
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16 | |
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17 | s/^([^.]+)\.\1_/$1\_/g; # tcpi.tcpi_xxx => tcpi_xxx |
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18 | |
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19 | $_ |
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20 | } |
| 6 | |
21 | |
| 7 | for my $file (@ARGV) { |
22 | for my $file (@ARGV) { |
| 8 | open my $fh, "<:utf8", $file |
23 | open my $fh, "<:utf8", $file |
| 9 | or die "$file: $!"; |
24 | or die "$file: $!"; |
| 10 | |
25 | |
| 11 | while (<$fh>) { |
26 | while (<$fh>) { |
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27 | next if /^\s*\//; # skip lines starting with / |
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28 | if ($curclass eq $class) { |
| 12 | while (/ACC\s*\(R([WO])\s*,\s*(\S+)\)/g) { |
29 | while (/ACC\s*\(R([WO])\s*,\s*([^)\]]+)(?:\[(\S+)\])?\)/g) { |
| 13 | next unless $curclass eq $class; |
30 | if ($3) { |
| 14 | |
31 | push @array_member, [$1, $2, $3]; |
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32 | } else { |
| 15 | push @member, [$1, $2]; |
33 | push @scalar_member, [$1, $2]; |
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34 | } |
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35 | } |
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36 | if (/MTH \s+ ([^(]*?) \s* ([A-Za-z_0-9]+) \s* \(([^)]*)\)/x) { |
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37 | push @method_member, [$1, $2, $3]; |
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38 | } |
| 16 | } |
39 | } |
| 17 | while (/ACC_CLASS\s*\((\S+)\)/g) { |
40 | while (/INTERFACE_CLASS\s*\((\S+)\)/g) { |
| 18 | $curclass = $1; |
41 | $curclass = $1; |
| 19 | } |
42 | } |
| 20 | } |
43 | } |
| 21 | } |
44 | } |
| 22 | |
45 | |
| 23 | exit unless @member; |
46 | for (@method_member) { |
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47 | my ($rettype, $name, $params) = @$_; |
| 24 | |
48 | |
| 25 | print "SV *$member[0][1] ($class *self, SV *newval = 0)\n"; |
49 | if ($rettype =~ s/static\s+//) { |
| 26 | print "\tPROTOTYPE: \$;\$\n"; |
50 | my $args = join ", ", $params =~ m/.*?([a-zA-Z_0-9]+)(?:,\s*|$)/g; |
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51 | if ($rettype ne "void") { |
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52 | print "$rettype\n$name ($params)\n", |
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53 | "\tCODE:\n", |
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54 | "\tRETVAL = $class\::$name ($args);\n", |
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55 | "\tOUTPUT:\n", |
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56 | "\tRETVAL\n"; |
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57 | } else { |
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58 | print "$rettype\n$name ($params)\n", |
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59 | "\tCODE:\n", |
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60 | "\t$class\::$name ($args);\n", |
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61 | } |
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62 | } else { |
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63 | print "$rettype\n$class\::$name ($params)\n"; |
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64 | } |
| 27 | |
65 | |
| 28 | if (@member > 1) { |
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| 29 | print "\tALIAS:\n"; |
66 | print "\n"; |
| 30 | for (1 .. $#member) { |
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| 31 | print "\t\t$member[$_][1]\t= $_\n"; |
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| 32 | } |
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| 33 | } |
67 | } |
| 34 | |
68 | |
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69 | if (@scalar_member) { |
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70 | print "SV *$scalar_member[0][1] ($class *self, SV *newval = 0)\n"; |
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71 | print "\tPROTOTYPE: \$;\$\n"; |
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72 | |
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73 | if (@scalar_member > 1) { |
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74 | print "\tALIAS:\n"; |
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75 | for (1 .. $#scalar_member) { |
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76 | print "\t\t" . (c2perl $scalar_member[$_][1]) . "\t= $_\n"; |
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77 | } |
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78 | } |
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79 | |
| 35 | print "\tCODE:\n"; |
80 | print "\tCODE:\n"; |
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81 | |
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82 | my $ix = @scalar_member == 1 ? 0 : "ix"; |
| 36 | |
83 | |
| 37 | # read |
84 | # read |
| 38 | print "\tif (GIMME_V == G_VOID)\n", |
85 | print "\tif (GIMME_V == G_VOID)\n", |
| 39 | "\t RETVAL = &PL_sv_undef;\n", |
86 | "\t RETVAL = &PL_sv_undef;\n", |
| 40 | "\telse\n", |
87 | "\telse\n", |
| 41 | "\t switch (ix)\n", |
88 | "\t switch ($ix)\n", |
| 42 | "\t {\n", |
89 | "\t {\n", |
| 43 | (map "\t case $_: RETVAL = to_sv (self->$member[$_][1]); break;\n", |
90 | (map "\t case $_: RETVAL = to_sv (self->$scalar_member[$_][1]); break;\n", |
| 44 | 0 .. $#member), |
91 | 0 .. $#scalar_member), |
| 45 | "\t default: croak (\"member is write-only\");\n", |
92 | "\t default: croak (\"scalar_member is write-only\");\n", |
| 46 | "\t };\n"; |
93 | "\t };\n"; |
| 47 | |
94 | |
| 48 | # write |
95 | # write |
| 49 | print "\tif (newval)\n", |
96 | print "\tif (newval)\n", |
| 50 | "\t switch (ix)\n", |
97 | "\t switch ($ix)\n", |
| 51 | "\t {\n", |
98 | "\t {\n", |
| 52 | (map "\t case $_: sv_to (newval, self->$member[$_][1]); break;\n", |
99 | (map "\t case $_: sv_to (newval, self->$scalar_member[$_][1]); break;\n", |
| 53 | grep $member[$_][0] eq "W", |
100 | grep $scalar_member[$_][0] eq "W", |
| 54 | 0 .. $#member), |
101 | 0 .. $#scalar_member), |
| 55 | "\t default: croak (\"member is read-only\");\n", |
102 | "\t default: croak (\"scalar_member is read-only\");\n", |
| 56 | "\t };\n"; |
103 | "\t };\n"; |
| 57 | |
104 | |
| 58 | print "\tOUTPUT: RETVAL\n"; |
105 | print "\tOUTPUT: RETVAL\n\n"; |
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106 | } |
| 59 | |
107 | |
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108 | if (@array_member) { |
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109 | print "SV *$array_member[0][1] ($class *self, int idx, SV *newval = 0)\n"; |
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110 | print "\tPROTOTYPE: \$;\$\n"; |
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111 | |
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112 | if (@array_member > 1) { |
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113 | print "\tALIAS:\n"; |
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114 | for (1 .. $#array_member) { |
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115 | print "\t\t" . (c2perl $array_member[$_][1]) . "\t= $_\n"; |
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116 | } |
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117 | } |
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118 | |
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119 | print "\tCODE:\n"; |
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120 | |
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121 | print "\tif (idx < 0) croak (\"negative array index\");\n"; |
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122 | |
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123 | my $ix = @array_member == 1 ? 0 : "ix"; |
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124 | |
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125 | # range |
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126 | print "\t switch ($ix)\n", |
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127 | "\t {\n", |
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128 | (map "\t case $_: if (idx >= $array_member[$_][2]) croak (\"array index out of bounds\"); break;\n", |
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129 | 0 .. $#array_member), |
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130 | "\t };\n"; |
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131 | |
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132 | # read |
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133 | print "\tif (GIMME_V == G_VOID)\n", |
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134 | "\t RETVAL = &PL_sv_undef;\n", |
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135 | "\telse\n", |
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136 | "\t switch ($ix)\n", |
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137 | "\t {\n", |
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138 | (map "\t case $_: RETVAL = to_sv (self->$array_member[$_][1] [idx]); break;\n", |
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139 | 0 .. $#array_member), |
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140 | "\t default: croak (\"array_member is write-only\");\n", |
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141 | "\t };\n"; |
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142 | |
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143 | # write |
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144 | print "\tif (newval)\n", |
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145 | "\t switch ($ix)\n", |
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146 | "\t {\n", |
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147 | (map "\t case $_: sv_to (newval, self->$array_member[$_][1] [idx]); break;\n", |
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148 | grep $array_member[$_][0] eq "W", |
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149 | 0 .. $#array_member), |
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150 | "\t default: croak (\"array_member is read-only\");\n", |
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151 | "\t };\n"; |
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152 | |
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153 | print "\tOUTPUT: RETVAL\n\n"; |
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154 | } |
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155 | |
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156 | my $json = JSON::XS->new->utf8->encode ({ |
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157 | class => $class, |
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158 | methods => { map +($_->[1], [$_->[0], $_->[2]]), @method_member }, |
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159 | scalars => { map +($_->[1], [$_->[0] ]), @scalar_member }, |
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160 | arrays => { map +($_->[1], [$_->[0], $_->[2]]), @array_member }, |
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161 | }); |
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162 | |
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163 | $json = join "\n", map { |
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164 | my $part = $_; |
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165 | $part =~ s/(["\\])/\\$1/g; |
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166 | "\"$part\"" |
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167 | } unpack "(a80)*", $json; |
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168 | |
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169 | print "BOOT:\n", |
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170 | "\tav_push (av_reflect, newSVpv ($json, 0));\n\n"; |
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171 | |
