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1 | #!perl |
2 | |
3 | BEGIN { |
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4 | unshift @INC, 't'; |
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5 | require Config; |
6 | if (($Config::Config{'extensions'} !~ /\bB\b/) ){ |
7 | print "1..0 # Skip -- Perl configured without B module\n"; |
8 | exit 0; |
9 | } |
10 | # require 'test.pl'; # now done by OptreeCheck |
11 | } |
12 | |
13 | use OptreeCheck; # ALSO DOES @ARGV HANDLING !!!!!! |
14 | use Config; |
15 | |
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16 | my $tests = 30; |
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17 | plan tests => $tests; |
18 | SKIP: { |
19 | skip "no perlio in this build", $tests unless $Config::Config{useperlio}; |
20 | |
21 | ################################# |
22 | |
23 | use constant { # see also t/op/gv.t line 282 |
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24 | myaref => [ 1,2,3 ], |
25 | myfl => 1.414213, |
26 | myglob => \*STDIN, |
27 | myhref => { a => 1 }, |
28 | myint => 42, |
29 | myrex => qr/foo/, |
30 | mystr => 'hithere', |
31 | mysub => \&ok, |
32 | myundef => undef, |
33 | myunsub => \&nosuch, |
34 | }; |
35 | |
36 | sub myyes() { 1==1 } |
37 | sub myno () { return 1!=1 } |
38 | sub pi () { 3.14159 }; |
39 | |
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40 | my $RV_class = $] >= 5.011 ? 'IV' : 'RV'; |
41 | |
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42 | my $want = { # expected types, how value renders in-line, todos (maybe) |
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43 | mystr => [ 'PV', '"'.mystr.'"' ], |
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44 | myhref => [ $RV_class, '\\\\HASH'], |
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45 | pi => [ 'NV', pi ], |
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46 | myglob => [ $RV_class, '\\\\' ], |
47 | mysub => [ $RV_class, '\\\\' ], |
48 | myunsub => [ $RV_class, '\\\\' ], |
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49 | # these are not inlined, at least not per BC::Concise |
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50 | #myyes => [ $RV_class, ], |
51 | #myno => [ $RV_class, ], |
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52 | $] > 5.009 ? ( |
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53 | myaref => [ $RV_class, '\\\\' ], |
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54 | myfl => [ 'NV', myfl ], |
55 | myint => [ 'IV', myint ], |
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56 | $] >= 5.011 ? ( |
57 | myrex => [ $RV_class, '\\\\"\\(?-xism:Foo\\)"' ], |
58 | ) : ( |
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59 | myrex => [ $RV_class, '\\\\' ], |
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60 | ), |
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61 | myundef => [ 'NULL', ], |
62 | ) : ( |
63 | myaref => [ 'PVIV', '' ], |
64 | myfl => [ 'PVNV', myfl ], |
65 | myint => [ 'PVIV', myint ], |
66 | myrex => [ 'PVNV', '' ], |
67 | myundef => [ 'PVIV', ], |
68 | ) |
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69 | }; |
70 | |
71 | use constant WEEKDAYS |
72 | => qw ( Sunday Monday Tuesday Wednesday Thursday Friday Saturday ); |
73 | |
74 | |
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75 | $::{napier} = \2.71828; # counter-example (doesn't get optimized). |
76 | eval "sub napier ();"; |
77 | |
78 | |
79 | # should be able to undefine constant::import here ??? |
80 | INIT { |
81 | # eval 'sub constant::import () {}'; |
82 | # undef *constant::import::{CODE}; |
83 | }; |
84 | |
85 | ################################# |
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86 | pass("RENDER CONSTANT SUBS RETURNING SCALARS"); |
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87 | |
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88 | for $func (sort keys %$want) { |
89 | # no strict 'refs'; # why not needed ? |
90 | checkOptree ( name => "$func() as a coderef", |
91 | code => \&{$func}, |
92 | noanchors => 1, |
93 | expect => <<EOT_EOT, expect_nt => <<EONT_EONT); |
94 | is a constant sub, optimized to a $want->{$func}[0] |
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95 | EOT_EOT |
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96 | is a constant sub, optimized to a $want->{$func}[0] |
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97 | EONT_EONT |
98 | |
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99 | } |
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100 | |
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101 | pass("RENDER CALLS TO THOSE CONSTANT SUBS"); |
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102 | |
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103 | for $func (sort keys %$want) { |
104 | # print "# doing $func\n"; |
105 | checkOptree ( name => "call $func", |
106 | code => "$func", |
107 | ($want->{$func}[2]) ? ( todo => $want->{$func}[2]) : (), |
108 | bc_opts => '-nobanner', |
109 | expect => <<EOT_EOT, expect_nt => <<EONT_EONT); |
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110 | 3 <1> leavesub[2 refs] K/REFC,1 ->(end) |
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111 | - <\@> lineseq KP ->3 |
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112 | 1 <;> dbstate(main 833 (eval 44):1) v ->2 |
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113 | 2 <\$> const[$want->{$func}[0] $want->{$func}[1]] s ->3 |
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114 | EOT_EOT |
115 | 3 <1> leavesub[2 refs] K/REFC,1 ->(end) |
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116 | - <\@> lineseq KP ->3 |
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117 | 1 <;> dbstate(main 833 (eval 44):1) v ->2 |
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118 | 2 <\$> const($want->{$func}[0] $want->{$func}[1]) s ->3 |
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119 | EONT_EONT |
120 | |
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121 | } |
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122 | |
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123 | ############## |
124 | pass("MORE TESTS"); |
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125 | |
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126 | checkOptree ( name => 'myyes() as coderef', |
127 | code => sub () { 1==1 }, |
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128 | noanchors => 1, |
129 | expect => <<'EOT_EOT', expect_nt => <<'EONT_EONT'); |
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130 | is a constant sub, optimized to a SPECIAL |
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131 | EOT_EOT |
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132 | is a constant sub, optimized to a SPECIAL |
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133 | EONT_EONT |
134 | |
135 | |
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136 | checkOptree ( name => 'myyes() as coderef', |
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137 | prog => 'sub a() { 1==1 }; print a', |
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138 | noanchors => 1, |
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139 | strip_open_hints => 1, |
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140 | expect => <<'EOT_EOT', expect_nt => <<'EONT_EONT'); |
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141 | # 6 <@> leave[1 ref] vKP/REFC ->(end) |
142 | # 1 <0> enter ->2 |
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143 | # 2 <;> nextstate(main 2 -e:1) v:>,<,%,{ ->3 |
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144 | # 5 <@> print vK ->6 |
145 | # 3 <0> pushmark s ->4 |
146 | # 4 <$> const[SPECIAL sv_yes] s ->5 |
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147 | EOT_EOT |
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148 | # 6 <@> leave[1 ref] vKP/REFC ->(end) |
149 | # 1 <0> enter ->2 |
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150 | # 2 <;> nextstate(main 2 -e:1) v:>,<,%,{ ->3 |
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151 | # 5 <@> print vK ->6 |
152 | # 3 <0> pushmark s ->4 |
153 | # 4 <$> const(SPECIAL sv_yes) s ->5 |
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154 | EONT_EONT |
155 | |
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156 | |
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157 | # Need to do this as a prog, not code, as only the first constant to use |
158 | # PL_sv_no actually gets to use the real thing - every one following is |
159 | # copied. |
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160 | checkOptree ( name => 'myno() as coderef', |
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161 | prog => 'sub a() { 1!=1 }; print a', |
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162 | noanchors => 1, |
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163 | strip_open_hints => 1, |
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164 | expect => <<'EOT_EOT', expect_nt => <<'EONT_EONT'); |
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165 | # 6 <@> leave[1 ref] vKP/REFC ->(end) |
166 | # 1 <0> enter ->2 |
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167 | # 2 <;> nextstate(main 2 -e:1) v:>,<,%,{ ->3 |
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168 | # 5 <@> print vK ->6 |
169 | # 3 <0> pushmark s ->4 |
170 | # 4 <$> const[SPECIAL sv_no] s ->5 |
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171 | EOT_EOT |
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172 | # 6 <@> leave[1 ref] vKP/REFC ->(end) |
173 | # 1 <0> enter ->2 |
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174 | # 2 <;> nextstate(main 2 -e:1) v:>,<,%,{ ->3 |
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175 | # 5 <@> print vK ->6 |
176 | # 3 <0> pushmark s ->4 |
177 | # 4 <$> const(SPECIAL sv_no) s ->5 |
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178 | EONT_EONT |
179 | |
180 | |
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181 | my ($expect, $expect_nt) = (<<'EOT_EOT', <<'EONT_EONT'); |
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182 | # 3 <1> leavesub[2 refs] K/REFC,1 ->(end) |
183 | # - <@> lineseq K ->3 |
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184 | # 1 <;> nextstate(constant 61 constant.pm:118) v:*,& ->2 |
185 | # 2 <0> padav[@list:FAKE:m:96] ->3 |
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186 | EOT_EOT |
187 | # 3 <1> leavesub[2 refs] K/REFC,1 ->(end) |
188 | # - <@> lineseq K ->3 |
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189 | # 1 <;> nextstate(constant 61 constant.pm:118) v:*,& ->2 |
190 | # 2 <0> padav[@list:FAKE:m:71] ->3 |
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191 | EONT_EONT |
192 | |
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193 | if($] < 5.009) { |
194 | # 5.8.x doesn't add the m flag to padav |
195 | s/FAKE:m:\d+/FAKE/ foreach ($expect, $expect_nt); |
196 | } |
197 | |
198 | checkOptree ( name => 'constant sub returning list', |
199 | code => \&WEEKDAYS, |
200 | noanchors => 1, |
201 | expect => $expect, expect_nt => $expect_nt); |
202 | |
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203 | |
204 | sub printem { |
205 | printf "myint %d mystr %s myfl %f pi %f\n" |
206 | , myint, mystr, myfl, pi; |
207 | } |
208 | |
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209 | my ($expect, $expect_nt) = (<<'EOT_EOT', <<'EONT_EONT'); |
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210 | # 9 <1> leavesub[1 ref] K/REFC,1 ->(end) |
211 | # - <@> lineseq KP ->9 |
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212 | # 1 <;> nextstate(main 635 optree_constants.t:163) v:>,<,% ->2 |
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213 | # 8 <@> prtf sK ->9 |
214 | # 2 <0> pushmark s ->3 |
215 | # 3 <$> const[PV "myint %d mystr %s myfl %f pi %f\n"] s ->4 |
216 | # 4 <$> const[IV 42] s ->5 |
217 | # 5 <$> const[PV "hithere"] s ->6 |
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218 | # 6 <$> const[NV 1.414213] s ->7 |
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219 | # 7 <$> const[NV 3.14159] s ->8 |
220 | EOT_EOT |
221 | # 9 <1> leavesub[1 ref] K/REFC,1 ->(end) |
222 | # - <@> lineseq KP ->9 |
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223 | # 1 <;> nextstate(main 635 optree_constants.t:163) v:>,<,% ->2 |
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224 | # 8 <@> prtf sK ->9 |
225 | # 2 <0> pushmark s ->3 |
226 | # 3 <$> const(PV "myint %d mystr %s myfl %f pi %f\n") s ->4 |
227 | # 4 <$> const(IV 42) s ->5 |
228 | # 5 <$> const(PV "hithere") s ->6 |
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229 | # 6 <$> const(NV 1.414213) s ->7 |
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230 | # 7 <$> const(NV 3.14159) s ->8 |
231 | EONT_EONT |
232 | |
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233 | if($] < 5.009) { |
234 | # 5.8.x's use constant has larger types |
235 | foreach ($expect, $expect_nt) { |
236 | s/IV 42/PV$&/; |
237 | s/NV 1.41/PV$&/; |
238 | } |
239 | } |
240 | |
241 | checkOptree ( name => 'call many in a print statement', |
242 | code => \&printem, |
243 | strip_open_hints => 1, |
244 | expect => $expect, expect_nt => $expect_nt); |
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245 | |
246 | } #skip |
247 | |
248 | __END__ |
249 | |
250 | =head NB |
251 | |
252 | Optimized constant subs are stored as bare scalars in the stash |
253 | (package hash), which formerly held only GVs (typeglobs). |
254 | |
255 | But you cant create them manually - you cant assign a scalar to a |
256 | stash element, and expect it to work like a constant-sub, even if you |
257 | provide a prototype. |
258 | |
259 | This is a feature; alternative is too much action-at-a-distance. The |
260 | following test demonstrates - napier is not seen as a function at all, |
261 | much less an optimized one. |
262 | |
263 | =cut |
264 | |
265 | checkOptree ( name => 'not evertnapier', |
266 | code => \&napier, |
267 | noanchors => 1, |
268 | expect => <<'EOT_EOT', expect_nt => <<'EONT_EONT'); |
269 | has no START |
270 | EOT_EOT |
271 | has no START |
272 | EONT_EONT |
273 | |
274 | |