https://wiki.liberty-eiffel.org/index.php?title=Extract_internals&feed=atom&action=history
Extract internals - Revision history
2024-03-28T18:19:53Z
Revision history for this page on the wiki
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https://wiki.liberty-eiffel.org/index.php?title=Extract_internals&diff=2403&oldid=prev
Dkearns at 17:01, 14 June 2016
2016-06-14T17:01:43Z
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 18:01, 14 June 2016</td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>These options affect the compilation process, but do not change the generated C code.</div></td>
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Dkearns
https://wiki.liberty-eiffel.org/index.php?title=Extract_internals&diff=2401&oldid=prev
Dkearns: s/LibertyEiffel/Liberty Eiffel/
2016-06-14T16:55:36Z
<p>s/LibertyEiffel/Liberty Eiffel/</p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 17:55, 14 June 2016</td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==The problem==</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==The problem==</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Three problems, actually:</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Three problems, actually:</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div># When compiling a program, <del style="font-weight: bold; text-decoration: none;">LibertyEiffel</del> only generates code to support classes of which instances are <tt>create</tt>d in that program. Receiving objects through the STORABLE interface does not count as creating for this matter, so we need to cheat <del style="font-weight: bold; text-decoration: none;">LibertyEiffel</del> into believing that all those types that can be received through the STORABLE interface can also be created locally (that is, mark those types as <i>live</i>).</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div># When compiling a program, <ins style="font-weight: bold; text-decoration: none;">Liberty Eiffel</ins> only generates code to support classes of which instances are <tt>create</tt>d in that program. Receiving objects through the STORABLE interface does not count as creating for this matter, so we need to cheat <ins style="font-weight: bold; text-decoration: none;">Liberty Eiffel</ins> into believing that all those types that can be received through the STORABLE interface can also be created locally (that is, mark those types as <i>live</i>).</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div># The compiler also needs to know that we want to do introspection on types that we want to receive through the STORABLE interface, since STORABLE relies on introspection. Mainly, this means marking TYPED_INTERNALS[<i>the type that we want to receive</i>] as live.</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div># The compiler also needs to know that we want to do introspection on types that we want to receive through the STORABLE interface, since STORABLE relies on introspection. Mainly, this means marking TYPED_INTERNALS[<i>the type that we want to receive</i>] as live.</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div># Actually, <del style="font-weight: bold; text-decoration: none;">LibertyEiffel</del> even strips unused attributes off classes (at least so in -boost mode). If two different programs use the same class, there is no guarantee that the same attributes will be stripped for both programs. That is unfortunate if those progams exchange objects.</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div># Actually, <ins style="font-weight: bold; text-decoration: none;">Liberty Eiffel</ins> even strips unused attributes off classes (at least so in -boost mode). If two different programs use the same class, there is no guarantee that the same attributes will be stripped for both programs. That is unfortunate if those progams exchange objects.</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Installing the tool==</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Installing the tool==</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>The first version of the extracting tool was bundled with SmartEiffel 2.2 final, <del style="font-weight: bold; text-decoration: none;">LibertyEiffel</del>'s predecessor.</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>The first version of the extracting tool was bundled with SmartEiffel 2.2 final, <ins style="font-weight: bold; text-decoration: none;">Liberty Eiffel</ins>'s predecessor.</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Now, go to some directory in your path (for instance, <tt>SmartEiffel/bin</tt>) and compile the extractor tool:</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Now, go to some directory in your path (for instance, <tt>SmartEiffel/bin</tt>) and compile the extractor tool:</div></td>
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Dkearns
https://wiki.liberty-eiffel.org/index.php?title=Extract_internals&diff=2400&oldid=prev
Dkearns: Document -flymake_mode
2016-06-14T16:54:50Z
<p>Document -flymake_mode</p>
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 17:54, 14 June 2016</td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>We can then compile <tt>PROGRAM_1</tt>, <tt>PROGRAM_2</tt> and <tt>PROGRAM_3</tt> as usual, just adding the <tt>-cecil common_root_internals_helper.se</tt> parameter.</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>We can then compile <tt>PROGRAM_1</tt>, <tt>PROGRAM_2</tt> and <tt>PROGRAM_3</tt> as usual, just adding the <tt>-cecil common_root_internals_helper.se</tt> parameter.</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>=== Options ===</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>==== Information ====</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>{| cellspacing="4" cellpadding="0" width="100%"</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>|-</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>| width="20%" valign="top" | <code>-help</code></div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>| Display a short summary of the command line syntax, with a complete list of the compiler options.</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>|-</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>| valign="top" | <code>-verbose</code></div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>| Display (an enormous amount of) information during compilation: a complete trace of files loaded, [[type inference]] scores, generated files and so on.</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>|-</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>| valign="top" | <code>-version</code></div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>| Display the SmartEiffel version number.</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>|}</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>==== Warnings ====</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>These options affect the compilation process, but do not change the generated C code.</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"></td>
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<td colspan="2" class="diff-empty"> </td>
<td class="diff-marker">+</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>{| cellspacing="4" cellpadding="0" width="100%"</div></td>
</tr>
<tr>
<td colspan="2" class="diff-empty"> </td>
<td class="diff-marker">+</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>|-</div></td>
</tr>
<tr>
<td colspan="2" class="diff-empty"> </td>
<td class="diff-marker">+</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>| width="20%" valign="top" | <code>-style_warning</code></div></td>
</tr>
<tr>
<td colspan="2" class="diff-empty"> </td>
<td class="diff-marker">+</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>| Display warning messages about non-compliance with Eiffel style rules.</div></td>
</tr>
<tr>
<td colspan="2" class="diff-empty"> </td>
<td class="diff-marker">+</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>|-</div></td>
</tr>
<tr>
<td colspan="2" class="diff-empty"> </td>
<td class="diff-marker">+</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>| valign="top" | <code>-no_warning</code></div></td>
</tr>
<tr>
<td colspan="2" class="diff-empty"> </td>
<td class="diff-marker">+</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>| Suppress all warning messages.</div></td>
</tr>
<tr>
<td colspan="2" class="diff-empty"> </td>
<td class="diff-marker">+</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>|}</div></td>
</tr>
<tr>
<td colspan="2" class="diff-empty"> </td>
<td class="diff-marker">+</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"></td>
</tr>
<tr>
<td colspan="2" class="diff-empty"> </td>
<td class="diff-marker">+</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>==== Message Styles ====</div></td>
</tr>
<tr>
<td colspan="2" class="diff-empty"> </td>
<td class="diff-marker">+</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"></td>
</tr>
<tr>
<td colspan="2" class="diff-empty"> </td>
<td class="diff-marker">+</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>{| cellspacing="4" cellpadding="0" width="100%"</div></td>
</tr>
<tr>
<td colspan="2" class="diff-empty"> </td>
<td class="diff-marker">+</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>|-</div></td>
</tr>
<tr>
<td colspan="2" class="diff-empty"> </td>
<td class="diff-marker">+</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>| width="20%" valign="top" | <code>-flymake_mode</code></div></td>
</tr>
<tr>
<td colspan="2" class="diff-empty"> </td>
<td class="diff-marker">+</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>| Display messages in a compact format suitable for processing by tools such as Emacs' Flymake mode.</div></td>
</tr>
<tr>
<td colspan="2" class="diff-empty"> </td>
<td class="diff-marker">+</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>|}</div></td>
</tr>
<tr>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
</tr>
<tr>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==FAQ==</div></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==FAQ==</div></td>
</tr>
</table>
Dkearns
https://wiki.liberty-eiffel.org/index.php?title=Extract_internals&diff=2308&oldid=prev
Hzwakenberg at 18:39, 28 May 2016
2016-05-28T18:39:50Z
<p></p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
<col class="diff-marker" />
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<col class="diff-marker" />
<col class="diff-content" />
<tr class="diff-title" lang="en">
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 19:39, 28 May 2016</td>
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<td colspan="2" class="diff-lineno">Line 1:</td>
<td colspan="2" class="diff-lineno">Line 1:</td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Tool]]</div></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Tool]]</div></td>
</tr>
<tr>
<td class="diff-marker">−</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>The <tt>extract_internals</tt> program was written <del style="font-weight: bold; text-decoration: none;">as</del> an attempt to fix a common problem when using object persistence: if two programs are going to send objects to each other, how do they know what objects to expect to receive? The <tt>extract_internals</tt> program analyses a program and outputs the list of object types that this program can send. The list is written in a format that can easily be used by the program that receives the objects.</div></td>
<td class="diff-marker">+</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>The <tt>extract_internals</tt> program was written <ins style="font-weight: bold; text-decoration: none;">in</ins> an attempt to fix a common problem when using object persistence: if two programs are going to send objects to each other, how do they know what objects to expect to receive? The <tt>extract_internals</tt> program analyses a program and outputs the list of object types that this program can send. The list is written in a format that can easily be used by the program that receives the objects.</div></td>
</tr>
<tr>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
</tr>
<tr>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==The problem==</div></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==The problem==</div></td>
</tr>
<tr>
<td class="diff-marker">−</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Three problems, actually</div></td>
<td class="diff-marker">+</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Three problems, actually<ins style="font-weight: bold; text-decoration: none;">:</ins></div></td>
</tr>
<tr>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div># When compiling a program, LibertyEiffel only generates code to support classes of which instances are <tt>create</tt>d in that program. Receiving objects through the STORABLE interface does not count as creating for this matter, so we need to cheat LibertyEiffel into believing that all those types that can be received through the STORABLE interface can also be created locally (that is, mark those types as <i>live</i>).</div></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div># When compiling a program, LibertyEiffel only generates code to support classes of which instances are <tt>create</tt>d in that program. Receiving objects through the STORABLE interface does not count as creating for this matter, so we need to cheat LibertyEiffel into believing that all those types that can be received through the STORABLE interface can also be created locally (that is, mark those types as <i>live</i>).</div></td>
</tr>
<tr>
<td class="diff-marker">−</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div># <del style="font-weight: bold; text-decoration: none;">We</del> also <del style="font-weight: bold; text-decoration: none;">need the compiler</del> to know that we want to do introspection on types that we want to receive through the STORABLE interface, since STORABLE relies on introspection. Mainly, this means marking TYPED_INTERNALS[<i>the type that we want to receive</i>] as live.</div></td>
<td class="diff-marker">+</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div># <ins style="font-weight: bold; text-decoration: none;">The compiler</ins> also <ins style="font-weight: bold; text-decoration: none;">needs</ins> to know that we want to do introspection on types that we want to receive through the STORABLE interface, since STORABLE relies on introspection. Mainly, this means marking TYPED_INTERNALS[<i>the type that we want to receive</i>] as live.</div></td>
</tr>
<tr>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div># Actually, LibertyEiffel even strips unused attributes off classes (at least so in -boost mode). If two different programs use the same class, there is no guarantee that the same attributes will be stripped for both programs. That is unfortunate if those progams exchange objects.</div></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div># Actually, LibertyEiffel even strips unused attributes off classes (at least so in -boost mode). If two different programs use the same class, there is no guarantee that the same attributes will be stripped for both programs. That is unfortunate if those progams exchange objects.</div></td>
</tr>
<tr>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
</tr>
</table>
Hzwakenberg
https://wiki.liberty-eiffel.org/index.php?title=Extract_internals&diff=1920&oldid=prev
Hzwakenberg at 19:48, 5 September 2014
2014-09-05T19:48:08Z
<p></p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
<col class="diff-marker" />
<col class="diff-content" />
<col class="diff-marker" />
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<tr class="diff-title" lang="en">
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 20:48, 5 September 2014</td>
</tr><tr>
<td colspan="2" class="diff-lineno">Line 1:</td>
<td colspan="2" class="diff-lineno">Line 1:</td>
</tr>
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<td class="diff-marker">−</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Smarteiffel]]</div></td>
<td colspan="2" class="diff-empty"> </td>
</tr>
<tr>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Tool]]</div></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Tool]]</div></td>
</tr>
<tr>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The <tt>extract_internals</tt> program was written as an attempt to fix a common problem when using object persistence: if two programs are going to send objects to each other, how do they know what objects to expect to receive? The <tt>extract_internals</tt> program analyses a program and outputs the list of object types that this program can send. The list is written in a format that can easily be used by the program that receives the objects.</div></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The <tt>extract_internals</tt> program was written as an attempt to fix a common problem when using object persistence: if two programs are going to send objects to each other, how do they know what objects to expect to receive? The <tt>extract_internals</tt> program analyses a program and outputs the list of object types that this program can send. The list is written in a format that can easily be used by the program that receives the objects.</div></td>
</tr>
<tr>
<td colspan="2" class="diff-lineno">Line 5:</td>
<td colspan="2" class="diff-lineno">Line 4:</td>
</tr>
<tr>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==The problem==</div></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==The problem==</div></td>
</tr>
<tr>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Three problems, actually</div></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Three problems, actually</div></td>
</tr>
<tr>
<td class="diff-marker">−</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div># When compiling a program, <del style="font-weight: bold; text-decoration: none;">SmartEiffel</del> only generates code to support classes of which instances are <tt>create</tt>d in that program. Receiving objects through the STORABLE interface does not count as creating for this matter, so we need to cheat <del style="font-weight: bold; text-decoration: none;">SmartEiffel</del> into believing that all those types that can be received through the STORABLE interface can also be created locally (that is, mark those types as <i>live</i>).</div></td>
<td class="diff-marker">+</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div># When compiling a program, <ins style="font-weight: bold; text-decoration: none;">LibertyEiffel</ins> only generates code to support classes of which instances are <tt>create</tt>d in that program. Receiving objects through the STORABLE interface does not count as creating for this matter, so we need to cheat <ins style="font-weight: bold; text-decoration: none;">LibertyEiffel</ins> into believing that all those types that can be received through the STORABLE interface can also be created locally (that is, mark those types as <i>live</i>).</div></td>
</tr>
<tr>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div># We also need the compiler to know that we want to do introspection on types that we want to receive through the STORABLE interface, since STORABLE relies on introspection. Mainly, this means marking TYPED_INTERNALS[<i>the type that we want to receive</i>] as live.</div></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div># We also need the compiler to know that we want to do introspection on types that we want to receive through the STORABLE interface, since STORABLE relies on introspection. Mainly, this means marking TYPED_INTERNALS[<i>the type that we want to receive</i>] as live.</div></td>
</tr>
<tr>
<td class="diff-marker">−</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div># Actually, <del style="font-weight: bold; text-decoration: none;">SmartEiffel</del> even strips unused attributes off classes (at least in -boost mode). If two different programs use the same class, there is no guarantee that the same attributes will be stripped for both programs. That is unfortunate if those progams exchange objects.</div></td>
<td class="diff-marker">+</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div># Actually, <ins style="font-weight: bold; text-decoration: none;">LibertyEiffel</ins> even strips unused attributes off classes (at least<ins style="font-weight: bold; text-decoration: none;"> so</ins> in -boost mode). If two different programs use the same class, there is no guarantee that the same attributes will be stripped for both programs. That is unfortunate if those progams exchange objects.</div></td>
</tr>
<tr>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
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<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Installing the tool==</div></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>==Installing the tool==</div></td>
</tr>
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<td class="diff-marker">−</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>The first version of the extracting tool <del style="font-weight: bold; text-decoration: none;">is</del> bundled with SmartEiffel 2.2 final, <del style="font-weight: bold; text-decoration: none;">so start by downloading and installing that if you don</del>'<del style="font-weight: bold; text-decoration: none;">t</del> <del style="font-weight: bold; text-decoration: none;">already have it</del>.<del style="font-weight: bold; text-decoration: none;"> </del></div></td>
<td class="diff-marker">+</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>The first version of the extracting tool <ins style="font-weight: bold; text-decoration: none;">was</ins> bundled with SmartEiffel 2.2 final, <ins style="font-weight: bold; text-decoration: none;">LibertyEiffel</ins>'<ins style="font-weight: bold; text-decoration: none;">s</ins> <ins style="font-weight: bold; text-decoration: none;">predecessor</ins>.</div></td>
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<td class="diff-marker">−</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>http://smarteiffel.loria.fr/general/download.html</div></td>
<td colspan="2" class="diff-empty"> </td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
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<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Now, go to some directory in your path (for instance, <tt>SmartEiffel/bin</tt>) and compile the extractor tool:</div></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Now, go to some directory in your path (for instance, <tt>SmartEiffel/bin</tt>) and compile the extractor tool:</div></td>
</tr>
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<td colspan="2" class="diff-empty"> </td>
<td class="diff-marker">+</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"></td>
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<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> se c -boost -no_gc -no_split -clean -o extract_internals extract_internals</div></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> se c -boost -no_gc -no_split -clean -o extract_internals extract_internals</div></td>
</tr>
<tr>
<td colspan="2" class="diff-empty"> </td>
<td class="diff-marker">+</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"></td>
</tr>
<tr>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>You may also want to add <tt>extract_internals</tt> to the [[Configuration file#Tools|<tt>[tools]</tt> section of your SmartEiffel configuration file]] to be able to use extract_internals through the se front-end. The configuration file is [[Configuration file#Where_is_this_file|often named <tt>.serc</tt>, <tt>se.cfg</tt> or <tt>system.se</tt>]].</div></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>You may also want to add <tt>extract_internals</tt> to the [[Configuration file#Tools|<tt>[tools]</tt> section of your SmartEiffel configuration file]] to be able to use extract_internals through the se front-end. The configuration file is [[Configuration file#Where_is_this_file|often named <tt>.serc</tt>, <tt>se.cfg</tt> or <tt>system.se</tt>]].</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
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</table>
Hzwakenberg
https://wiki.liberty-eiffel.org/index.php?title=Extract_internals&diff=1585&oldid=prev
Ramack at 21:14, 4 March 2013
2013-03-04T21:14:32Z
<p></p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 22:14, 4 March 2013</td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>[[Category:<del style="font-weight: bold; text-decoration: none;"> Book</del>]]</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>[[Category:<ins style="font-weight: bold; text-decoration: none;">Smarteiffel</ins>]]</div></td>
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<td class="diff-marker">+</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>[[Category:Tool]]</div></td>
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<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The <tt>extract_internals</tt> program was written as an attempt to fix a common problem when using object persistence: if two programs are going to send objects to each other, how do they know what objects to expect to receive? The <tt>extract_internals</tt> program analyses a program and outputs the list of object types that this program can send. The list is written in a format that can easily be used by the program that receives the objects.</div></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>The <tt>extract_internals</tt> program was written as an attempt to fix a common problem when using object persistence: if two programs are going to send objects to each other, how do they know what objects to expect to receive? The <tt>extract_internals</tt> program analyses a program and outputs the list of object types that this program can send. The list is written in a format that can easily be used by the program that receives the objects.</div></td>
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Ramack
https://wiki.liberty-eiffel.org/index.php?title=Extract_internals&diff=424&oldid=prev
Ramack: 16 revisions: initial import from SamrtEiffel Wiki - The Grand SmartEiffel Book
2013-03-03T21:04:41Z
<p>16 revisions: initial import from SamrtEiffel Wiki - The Grand SmartEiffel Book</p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
<tr class="diff-title" lang="en">
<td colspan="1" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="1" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 22:04, 3 March 2013</td>
</tr><tr><td colspan="2" class="diff-notice" lang="en"><div class="mw-diff-empty">(No difference)</div>
</td></tr></table>
Ramack
https://wiki.liberty-eiffel.org/index.php?title=Extract_internals&diff=423&oldid=prev
Cadrian: the Eiffel class is not used anymore (CECIL is enough)
2007-03-07T09:14:31Z
<p>the Eiffel class is not used anymore (CECIL is enough)</p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 10:14, 7 March 2007</td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>This will generate two files:</div></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>This will generate two files:</div></td>
</tr>
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<td class="diff-marker">−</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>* <tt>writer_internals_helper.e</tt> <del style="font-weight: bold; text-decoration: none;">is</del> <del style="font-weight: bold; text-decoration: none;">the</del> <del style="font-weight: bold; text-decoration: none;">list</del> <del style="font-weight: bold; text-decoration: none;">of</del> <del style="font-weight: bold; text-decoration: none;">live</del> <del style="font-weight: bold; text-decoration: none;">classes</del> <del style="font-weight: bold; text-decoration: none;">that WRITER can export. This list is written as an Eiffel class.</del></div></td>
<td class="diff-marker">+</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* <tt>writer_internals_helper.e</tt> <ins style="font-weight: bold; text-decoration: none;">does</ins> <ins style="font-weight: bold; text-decoration: none;">not</ins> <ins style="font-weight: bold; text-decoration: none;">need</ins> <ins style="font-weight: bold; text-decoration: none;">to</ins> <ins style="font-weight: bold; text-decoration: none;">be</ins> <ins style="font-weight: bold; text-decoration: none;">used</ins> <ins style="font-weight: bold; text-decoration: none;">anymore,</ins></div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>* <tt>writer_internals_helper.se</tt> is the list of live attributes of those classes. This list is written as a [[Cecil]] file.</div></td>
<td class="diff-marker">+</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>* <tt>writer_internals_helper.se</tt> is<ins style="font-weight: bold; text-decoration: none;"> the list of live classes that WRITER can export and</ins> the list of live attributes of those classes. This list is written as a [[Cecil]] file.</div></td>
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<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>To use the information we obtained, we have to<del style="font-weight: bold; text-decoration: none;"> add a call to WRITER_INTERNALS_HELPER.storable_quit as the last instruction of READER. Then we</del> compile READER using the cecil file writer_internals_helper.se.<del style="font-weight: bold; text-decoration: none;"> Here is the modified READER:</del></div></td>
<td class="diff-marker">+</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>To use the information we obtained, we have to compile READER using the cecil file writer_internals_helper.se.</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> class READER</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> </div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> creation</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> make</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> </div></td>
<td colspan="2" class="diff-empty"> </td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> feature</div></td>
<td colspan="2" class="diff-empty"> </td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> make is</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> local</div></td>
<td colspan="2" class="diff-empty"> </td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> r: XML_REPOSITORY[DATA]</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> x: DATA</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> do</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> create r.from_file ("data.xml")</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> x := r.at ("qoocku")</div></td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> check</div></td>
<td colspan="2" class="diff-empty"> </td>
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<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> x /= Void</div></td>
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<tr>
<td class="diff-marker">−</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> end</div></td>
<td colspan="2" class="diff-empty"> </td>
</tr>
<tr>
<td class="diff-marker">−</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> print (x.a)</div></td>
<td colspan="2" class="diff-empty"> </td>
</tr>
<tr>
<td class="diff-marker">−</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> <span style="color: #ff0000">(create {WRITER_INTERNALS_HELPER}).storable_quit</span></div></td>
<td colspan="2" class="diff-empty"> </td>
</tr>
<tr>
<td class="diff-marker">−</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> end</div></td>
<td colspan="2" class="diff-empty"> </td>
</tr>
<tr>
<td class="diff-marker">−</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> </div></td>
<td colspan="2" class="diff-empty"> </td>
</tr>
<tr>
<td class="diff-marker">−</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> end</div></td>
<td colspan="2" class="diff-empty"> </td>
</tr>
<tr>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
</tr>
<tr>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Now we can compile the WRITER and the READER. Remember to use the cecil file when compiling the READER.</div></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Now we can compile the WRITER and the READER. Remember to use the cecil file when compiling the READER.</div></td>
</tr>
<tr>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
</tr>
<tr>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> se c -o writer writer</div></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> se c -o writer writer</div></td>
</tr>
<tr>
<td class="diff-marker">−</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> se c -o reader reader -cecil writer_internals_helper.se</div></td>
<td class="diff-marker">+</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div> se c -o reader reader <ins style="font-weight: bold; text-decoration: none;"><span style="color: #ff0000"></ins>-cecil writer_internals_helper.se<ins style="font-weight: bold; text-decoration: none;"></span></ins></div></td>
</tr>
<tr>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
</tr>
<tr>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Now we can enjoy the result of our work and run the writer, followed by the reader...</div></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Now we can enjoy the result of our work and run the writer, followed by the reader...</div></td>
</tr>
<tr>
<td colspan="2" class="diff-lineno">Line 146:</td>
<td colspan="2" class="diff-lineno">Line 124:</td>
</tr>
<tr>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> end</div></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div> end</div></td>
</tr>
<tr>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
</tr>
<tr>
<td class="diff-marker">−</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>Now, we run <tt>extract_internals</tt> on common_root.e<del style="font-weight: bold; text-decoration: none;">, and we add the following line at the end of <tt>PROGRAM_1</del>.<del style="font-weight: bold; text-decoration: none;">make</tt>, <tt>PROGRAM_2.make</tt> and <tt>PROGRAM_3.make</tt>:</del></div></td>
<td class="diff-marker">+</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>Now, we run <tt>extract_internals</tt> on common_root.e.</div></td>
</tr>
<tr>
<td class="diff-marker">−</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"></td>
<td colspan="2" class="diff-empty"> </td>
</tr>
<tr>
<td class="diff-marker">−</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div> (create {COMMON_ROOT_INTERNALS_HELPER}).storable_quit</div></td>
<td colspan="2" class="diff-empty"> </td>
</tr>
<tr>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"></td>
</tr>
<tr>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>We can then compile <tt>PROGRAM_1</tt>, <tt>PROGRAM_2</tt> and <tt>PROGRAM_3</tt> as usual, just adding the <tt>-cecil common_root_internals_helper.se</tt> parameter.</div></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>We can then compile <tt>PROGRAM_1</tt>, <tt>PROGRAM_2</tt> and <tt>PROGRAM_3</tt> as usual, just adding the <tt>-cecil common_root_internals_helper.se</tt> parameter.</div></td>
</tr>
</table>
Cadrian
https://wiki.liberty-eiffel.org/index.php?title=Extract_internals&diff=422&oldid=prev
Cadrian: /* Installing the tool */
2006-06-21T06:56:05Z
<p><span dir="auto"><span class="autocomment">Installing the tool</span></span></p>
<p><b>New page</b></p><div>[[Category: Book]]<br />
The <tt>extract_internals</tt> program was written as an attempt to fix a common problem when using object persistence: if two programs are going to send objects to each other, how do they know what objects to expect to receive? The <tt>extract_internals</tt> program analyses a program and outputs the list of object types that this program can send. The list is written in a format that can easily be used by the program that receives the objects.<br />
<br />
==The problem==<br />
Three problems, actually<br />
# When compiling a program, SmartEiffel only generates code to support classes of which instances are <tt>create</tt>d in that program. Receiving objects through the STORABLE interface does not count as creating for this matter, so we need to cheat SmartEiffel into believing that all those types that can be received through the STORABLE interface can also be created locally (that is, mark those types as <i>live</i>).<br />
# We also need the compiler to know that we want to do introspection on types that we want to receive through the STORABLE interface, since STORABLE relies on introspection. Mainly, this means marking TYPED_INTERNALS[<i>the type that we want to receive</i>] as live.<br />
# Actually, SmartEiffel even strips unused attributes off classes (at least in -boost mode). If two different programs use the same class, there is no guarantee that the same attributes will be stripped for both programs. That is unfortunate if those progams exchange objects.<br />
<br />
==Installing the tool==<br />
The first version of the extracting tool is bundled with SmartEiffel 2.2 final, so start by downloading and installing that if you don't already have it. <br />
http://smarteiffel.loria.fr/general/download.html<br />
<br />
Now, go to some directory in your path (for instance, <tt>SmartEiffel/bin</tt>) and compile the extractor tool:<br />
se c -boost -no_gc -no_split -clean -o extract_internals extract_internals<br />
You may also want to add <tt>extract_internals</tt> to the [[Configuration file#Tools|<tt>[tools]</tt> section of your SmartEiffel configuration file]] to be able to use extract_internals through the se front-end. The configuration file is [[Configuration file#Where_is_this_file|often named <tt>.serc</tt>, <tt>se.cfg</tt> or <tt>system.se</tt>]].<br />
<br />
''Update:'' 2.3's installer automatically installs this tool.<br />
<br />
==One-way sending==<br />
Let's see how to use the <tt>extract_internals</tt> tool. We have two programs, WRITER and READER. We want the WRITER to send DATA objects to the READER through an xml file called <tt>data.xml</tt>. Here's the source code of the WRITER (programs courtesy of Damian Dobroczy&#324;ski):<br />
<br />
class WRITER<br />
<br />
creation<br />
make<br />
<br />
feature<br />
make is<br />
local<br />
r: XML_REPOSITORY[DATA]<br />
x: DATA<br />
do<br />
create r.make<br />
create x.make<br />
r.put (x, "qoocku")<br />
r.commit_to_file ("data.xml")<br />
end<br />
<br />
end<br />
<br />
And now for the READER. Unfortunately, this code does not work because the compiler does not know yet that objects of type DATA can be <tt>create</tt>d by READER (through the repository).<br />
<br />
class READER<br />
<br />
creation<br />
make<br />
<br />
feature<br />
make is<br />
local<br />
r: XML_REPOSITORY[DATA]<br />
x: DATA<br />
do<br />
create r.from_file ("data.xml")<br />
x := r.at ("qoocku")<br />
check<br />
x /= Void<br />
end<br />
print (x.a)<br />
end<br />
<br />
end<br />
<br />
For the sake of completeness, here is the code of DATA (it is not important for this discussion)<br />
<br />
class DATA<br />
<br />
inherit<br />
STORABLE<br />
<br />
creation<br />
make<br />
<br />
feature<br />
a: STRING<br />
<br />
make is<br />
do<br />
a := "Qoocku"<br />
end<br />
<br />
end<br />
<br />
Now the fun stuff begins: we use <tt>extract_internals</tt> to get the list of objects that can be created by the WRITER:<br />
extract_internals writer<br />
<br />
This will generate two files:<br />
* <tt>writer_internals_helper.e</tt> is the list of live classes that WRITER can export. This list is written as an Eiffel class.<br />
* <tt>writer_internals_helper.se</tt> is the list of live attributes of those classes. This list is written as a [[Cecil]] file.<br />
<br />
To use the information we obtained, we have to add a call to WRITER_INTERNALS_HELPER.storable_quit as the last instruction of READER. Then we compile READER using the cecil file writer_internals_helper.se. Here is the modified READER:<br />
<br />
class READER<br />
<br />
creation<br />
make<br />
<br />
feature<br />
make is<br />
local<br />
r: XML_REPOSITORY[DATA]<br />
x: DATA<br />
do<br />
create r.from_file ("data.xml")<br />
x := r.at ("qoocku")<br />
check<br />
x /= Void<br />
end<br />
print (x.a)<br />
<span style="color: #ff0000">(create {WRITER_INTERNALS_HELPER}).storable_quit</span><br />
end<br />
<br />
end<br />
<br />
Now we can compile the WRITER and the READER. Remember to use the cecil file when compiling the READER.<br />
<br />
se c -o writer writer<br />
se c -o reader reader -cecil writer_internals_helper.se<br />
<br />
Now we can enjoy the result of our work and run the writer, followed by the reader...<br />
<br />
./writer<br />
./reader<br />
<br />
...and enjoy the output, namely "Qoocku" (By the way does that <i>mean</i> anything?)<br />
<br />
==N-way sharing==<br />
If you have several programs sharing data through the STORABLE interface, you could arguably call <tt>extract_internals</tt> for each of them, and add calls to all the <tt>xxx_INTERNALS_HELPER.storable_quit</tt> at the end of all of then. Quite possibly, you would have to run <tt>extract_internals</tt> several times until the helpers stabilise. But there's an easier way.<br />
<br />
Let's assume we have three communicating programs, and their root classes/root procedures are <tt>PROGRAM_1.make</tt>, <tt>PROGRAM_2.make</tt> and <tt>PROGRAM_3.make</tt>. Now, we create a virtual common root:<br />
<br />
class COMMON_ROOT<br />
<br />
creation<br />
make<br />
<br />
feature<br />
make is<br />
do<br />
create PROGRAM_1.make<br />
create PROGRAM_2.make<br />
create PROGRAM_3.make<br />
end<br />
<br />
end<br />
<br />
Now, we run <tt>extract_internals</tt> on common_root.e, and we add the following line at the end of <tt>PROGRAM_1.make</tt>, <tt>PROGRAM_2.make</tt> and <tt>PROGRAM_3.make</tt>:<br />
<br />
(create {COMMON_ROOT_INTERNALS_HELPER}).storable_quit<br />
<br />
We can then compile <tt>PROGRAM_1</tt>, <tt>PROGRAM_2</tt> and <tt>PROGRAM_3</tt> as usual, just adding the <tt>-cecil common_root_internals_helper.se</tt> parameter.<br />
<br />
==FAQ==<br />
===You suggest to only initialise introspection at the end of the program. Isn't that a little late?===<br />
No, because the important action of storable_quit is performed at compile-time, not at run-time.<br />
<div id="SideEffects"><br />
===Some of the creation procedures used by xxx_INTROSPECTION_HELPER have nasty side-effects===<br />
</div><br />
That's no problem, because those creation instructions never actually get executed (see the "die" instruction above). We only want the compiler to believe that those instructions <i>could</i> could possibly get executed one day.<br />
===Some of the creation instructions in xxx_INTROSPECTION_HELPER will crash at run time because they have invalid parameters===<br />
No, because those instructions [[#SideEffects|won't get executed]].</div>
Cadrian
https://wiki.liberty-eiffel.org/index.php?title=Extract_internals&diff=419&oldid=prev
Cadrian: /* Some of the creation instructions in xxx_INTROSPECTION_HELPER will crash at run time because they have invalid parameters */ typo
2006-02-20T08:41:54Z
<p><span dir="auto"><span class="autocomment">Some of the creation instructions in xxx_INTROSPECTION_HELPER will crash at run time because they have invalid parameters: </span> typo</span></p>
<table style="background-color: #fff; color: #202122;" data-mw="interface">
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<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td>
<td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 09:41, 20 February 2006</td>
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<td colspan="2" class="diff-lineno">Line 158:</td>
<td colspan="2" class="diff-lineno">Line 158:</td>
</tr>
<tr>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>That's no problem, because those creation instructions never actually get executed (see the "die" instruction above). We only want the compiler to believe that those instructions <i>could</i> could possibly get executed one day.</div></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>That's no problem, because those creation instructions never actually get executed (see the "die" instruction above). We only want the compiler to believe that those instructions <i>could</i> could possibly get executed one day.</div></td>
</tr>
<tr>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===Some of the creation instructions in xxx_INTROSPECTION_HELPER will crash at run time because they have invalid parameters===</div></td>
<td class="diff-marker"> </td>
<td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>===Some of the creation instructions in xxx_INTROSPECTION_HELPER will crash at run time because they have invalid parameters===</div></td>
</tr>
<tr>
<td class="diff-marker">−</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>No, because those <del style="font-weight: bold; text-decoration: none;">instruction</del> [[#SideEffects|won't get executed]].</div></td>
<td class="diff-marker">+</td>
<td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>No, because those <ins style="font-weight: bold; text-decoration: none;">instructions</ins> [[#SideEffects|won't get executed]].</div></td>
</tr>
</table>
Cadrian