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1 | package XS::APItest; |
2 | |
3 | use 5.008; |
4 | use strict; |
5 | use warnings; |
6 | use Carp; |
7 | |
8 | use base qw/ DynaLoader Exporter /; |
9 | |
10 | # Items to export into callers namespace by default. Note: do not export |
11 | # names by default without a very good reason. Use EXPORT_OK instead. |
12 | # Do not simply export all your public functions/methods/constants. |
13 | |
14 | # Export everything since these functions are only used by a test script |
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15 | our @EXPORT = qw( print_double print_int print_long |
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16 | print_float print_long_double have_long_double print_flush |
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17 | mpushp mpushn mpushi mpushu |
18 | mxpushp mxpushn mxpushi mxpushu |
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19 | call_sv call_pv call_method eval_sv eval_pv require_pv |
20 | G_SCALAR G_ARRAY G_VOID G_DISCARD G_EVAL G_NOARGS |
21 | G_KEEPERR G_NODEBUG G_METHOD |
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22 | apitest_exception mycroak strtab |
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23 | my_cxt_getint my_cxt_getsv my_cxt_setint my_cxt_setsv |
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24 | sv_setsv_cow_hashkey_core sv_setsv_cow_hashkey_notcore |
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25 | ); |
26 | |
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27 | # from cop.h |
28 | sub G_SCALAR() { 0 } |
29 | sub G_ARRAY() { 1 } |
30 | sub G_VOID() { 128 } |
31 | sub G_DISCARD() { 2 } |
32 | sub G_EVAL() { 4 } |
33 | sub G_NOARGS() { 8 } |
34 | sub G_KEEPERR() { 16 } |
35 | sub G_NODEBUG() { 32 } |
36 | sub G_METHOD() { 64 } |
37 | |
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38 | our $VERSION = '0.12'; |
39 | |
40 | use vars '$WARNINGS_ON_BOOTSTRAP'; |
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41 | use vars map "\$${_}_called_PP", qw(BEGIN UNITCHECK CHECK INIT END); |
42 | |
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43 | BEGIN { |
44 | # This is arguably a hack, but it disposes of the UNITCHECK block without |
45 | # needing to preprocess the source code |
46 | if ($] < 5.009) { |
47 | eval 'sub UNITCHECK (&) {}; 1' or die $@; |
48 | } |
49 | } |
50 | |
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51 | # Do these here to verify that XS code and Perl code get called at the same |
52 | # times |
53 | BEGIN { |
54 | $BEGIN_called_PP++; |
55 | } |
56 | UNITCHECK { |
57 | $UNITCHECK_called_PP++; |
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58 | }; |
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59 | { |
60 | # Need $W false by default, as some tests run under -w, and under -w we |
61 | # can get warnings about "Too late to run CHECK" block (and INIT block) |
62 | no warnings 'void'; |
63 | CHECK { |
64 | $CHECK_called_PP++; |
65 | } |
66 | INIT { |
67 | $INIT_called_PP++; |
68 | } |
69 | } |
70 | END { |
71 | $END_called_PP++; |
72 | } |
73 | |
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74 | if ($WARNINGS_ON_BOOTSTRAP) { |
75 | bootstrap XS::APItest $VERSION; |
76 | } else { |
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77 | # More CHECK and INIT blocks that could warn: |
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78 | local $^W; |
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79 | bootstrap XS::APItest $VERSION; |
80 | } |
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81 | |
82 | 1; |
83 | __END__ |
84 | |
85 | =head1 NAME |
86 | |
87 | XS::APItest - Test the perl C API |
88 | |
89 | =head1 SYNOPSIS |
90 | |
91 | use XS::APItest; |
92 | print_double(4); |
93 | |
94 | =head1 ABSTRACT |
95 | |
96 | This module tests the perl C API. Currently tests that C<printf> |
97 | works correctly. |
98 | |
99 | =head1 DESCRIPTION |
100 | |
101 | This module can be used to check that the perl C API is behaving |
102 | correctly. This module provides test functions and an associated |
103 | test script that verifies the output. |
104 | |
105 | This module is not meant to be installed. |
106 | |
107 | =head2 EXPORT |
108 | |
109 | Exports all the test functions: |
110 | |
111 | =over 4 |
112 | |
113 | =item B<print_double> |
114 | |
115 | Test that a double-precision floating point number is formatted |
116 | correctly by C<printf>. |
117 | |
118 | print_double( $val ); |
119 | |
120 | Output is sent to STDOUT. |
121 | |
122 | =item B<print_long_double> |
123 | |
124 | Test that a C<long double> is formatted correctly by |
125 | C<printf>. Takes no arguments - the test value is hard-wired |
126 | into the function (as "7"). |
127 | |
128 | print_long_double(); |
129 | |
130 | Output is sent to STDOUT. |
131 | |
132 | =item B<have_long_double> |
133 | |
134 | Determine whether a C<long double> is supported by Perl. This should |
135 | be used to determine whether to test C<print_long_double>. |
136 | |
137 | print_long_double() if have_long_double; |
138 | |
139 | =item B<print_nv> |
140 | |
141 | Test that an C<NV> is formatted correctly by |
142 | C<printf>. |
143 | |
144 | print_nv( $val ); |
145 | |
146 | Output is sent to STDOUT. |
147 | |
148 | =item B<print_iv> |
149 | |
150 | Test that an C<IV> is formatted correctly by |
151 | C<printf>. |
152 | |
153 | print_iv( $val ); |
154 | |
155 | Output is sent to STDOUT. |
156 | |
157 | =item B<print_uv> |
158 | |
159 | Test that an C<UV> is formatted correctly by |
160 | C<printf>. |
161 | |
162 | print_uv( $val ); |
163 | |
164 | Output is sent to STDOUT. |
165 | |
166 | =item B<print_int> |
167 | |
168 | Test that an C<int> is formatted correctly by |
169 | C<printf>. |
170 | |
171 | print_int( $val ); |
172 | |
173 | Output is sent to STDOUT. |
174 | |
175 | =item B<print_long> |
176 | |
177 | Test that an C<long> is formatted correctly by |
178 | C<printf>. |
179 | |
180 | print_long( $val ); |
181 | |
182 | Output is sent to STDOUT. |
183 | |
184 | =item B<print_float> |
185 | |
186 | Test that a single-precision floating point number is formatted |
187 | correctly by C<printf>. |
188 | |
189 | print_float( $val ); |
190 | |
191 | Output is sent to STDOUT. |
192 | |
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193 | =item B<call_sv>, B<call_pv>, B<call_method> |
194 | |
195 | These exercise the C calls of the same names. Everything after the flags |
196 | arg is passed as the the args to the called function. They return whatever |
197 | the C function itself pushed onto the stack, plus the return value from |
198 | the function; for example |
199 | |
200 | call_sv( sub { @_, 'c' }, G_ARRAY, 'a', 'b'); # returns 'a', 'b', 'c', 3 |
201 | call_sv( sub { @_ }, G_SCALAR, 'a', 'b'); # returns 'b', 1 |
202 | |
203 | =item B<eval_sv> |
204 | |
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205 | Evaluates the passed SV. Result handling is done the same as for |
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206 | C<call_sv()> etc. |
207 | |
208 | =item B<eval_pv> |
209 | |
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210 | Exercises the C function of the same name in scalar context. Returns the |
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211 | same SV that the C function returns. |
212 | |
213 | =item B<require_pv> |
214 | |
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215 | Exercises the C function of the same name. Returns nothing. |
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216 | |
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217 | =back |
218 | |
219 | =head1 SEE ALSO |
220 | |
221 | L<XS::Typemap>, L<perlapi>. |
222 | |
223 | =head1 AUTHORS |
224 | |
225 | Tim Jenness, E<lt>t.jenness@jach.hawaii.eduE<gt>, |
226 | Christian Soeller, E<lt>csoelle@mph.auckland.ac.nzE<gt>, |
227 | Hugo van der Sanden E<lt>hv@crypt.compulink.co.ukE<gt> |
228 | |
229 | =head1 COPYRIGHT AND LICENSE |
230 | |
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231 | Copyright (C) 2002,2004 Tim Jenness, Christian Soeller, Hugo van der Sanden. |
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232 | All Rights Reserved. |
233 | |
234 | This library is free software; you can redistribute it and/or modify |
235 | it under the same terms as Perl itself. |
236 | |
237 | =cut |