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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
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<title>Grammar Properties</title>
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<!--Weave of 'Grammar Properties' generated by Inweb-->
<div class="breadcrumbs">
<ul class="crumbs"><li><a href="../index.html">Home</a></li><li><a href="../compiler.html">Inform7</a></li><li><a href="index.html">if</a></li><li><a href="index.html#5">Chapter 5: Command Parser</a></li><li><b>Grammar Properties</b></li></ul></div>
<p class="purpose">A plugin for the I6 run-time properties needed to support parsing.</p>
<ul class="toc"><li><a href="5-gp.html#SP1">&#167;1. Definitions</a></li><li><a href="5-gp.html#SP4">&#167;4. Initialising</a></li><li><a href="5-gp.html#SP5">&#167;5. Visible properties</a></li></ul><hr class="tocbar">
<p class="commentary firstcommentary"><a id="SP1" class="paragraph-anchor"></a><b>&#167;1. Definitions. </b></p>
<p class="commentary firstcommentary"><a id="SP2" class="paragraph-anchor"></a><b>&#167;2. </b></p>
<pre class="displayed-code all-displayed-code code-font">
<span class="identifier-syntax">property</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P_parse_name</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
</pre>
<p class="commentary firstcommentary"><a id="SP3" class="paragraph-anchor"></a><b>&#167;3. </b>And every property permission likewise:
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="reserved-syntax">typedef</span><span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">parsing_pp_data</span><span class="plain-syntax"> {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">visibility_level_in_parser</span><span class="plain-syntax">; </span><span class="comment-syntax"> if so, does the run-time I6 parser recognise it?</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">visibility_condition</span><span class="plain-syntax">; </span><span class="comment-syntax"> (at least if...?)</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="identifier-syntax">parse_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">visibility_sentence</span><span class="plain-syntax">; </span><span class="comment-syntax"> where this is specified</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">CLASS_DEFINITION</span>
<span class="plain-syntax">} </span><span class="reserved-syntax">parsing_pp_data</span><span class="plain-syntax">;</span>
</pre>
<ul class="endnotetexts"><li>The structure parsing_pp_data is private to this section.</li></ul>
<p class="commentary firstcommentary"><a id="SP4" class="paragraph-anchor"></a><b>&#167;4. Initialising. </b></p>
<pre class="displayed-code all-displayed-code code-font">
<span class="reserved-syntax">parsing_data</span><span class="plain-syntax"> *</span><span class="function-syntax">Visibility::new_data</span><button class="popup" onclick="togglePopup('usagePopup1')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup1">Usage of <span class="code-font"><span class="function-syntax">Visibility::new_data</span></span>:<br/>Parsing Plugin - <a href="5-pp.html#SP3">&#167;3</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">inference_subject</span><span class="plain-syntax"> *</span><span class="identifier-syntax">subj</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">parsing_data</span><span class="plain-syntax"> *</span><span class="identifier-syntax">pd</span><span class="plain-syntax"> = </span><span class="identifier-syntax">CREATE</span><span class="plain-syntax">(</span><span class="reserved-syntax">parsing_data</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">pd</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">understand_as_this_object</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">pd</span><span class="plain-syntax">;</span>
<span class="plain-syntax">}</span>
<span class="reserved-syntax">parsing_pp_data</span><span class="plain-syntax"> *</span><span class="function-syntax">Visibility::new_pp_data</span><span class="plain-syntax">(</span><span class="identifier-syntax">property_permission</span><span class="plain-syntax"> *</span><span class="identifier-syntax">pp</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">parsing_pp_data</span><span class="plain-syntax"> *</span><span class="identifier-syntax">pd</span><span class="plain-syntax"> = </span><span class="identifier-syntax">CREATE</span><span class="plain-syntax">(</span><span class="reserved-syntax">parsing_pp_data</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">pd</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">visibility_level_in_parser</span><span class="plain-syntax"> = </span><span class="constant-syntax">0</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">pd</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">visibility_condition</span><span class="plain-syntax"> = </span><span class="identifier-syntax">EMPTY_WORDING</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">pd</span><span class="plain-syntax">-&gt;</span><span class="element-syntax">visibility_sentence</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">pd</span><span class="plain-syntax">;</span>
<span class="plain-syntax">}</span>
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">Visibility::new_permission_notify</span><button class="popup" onclick="togglePopup('usagePopup2')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup2">Usage of <span class="code-font"><span class="function-syntax">Visibility::new_permission_notify</span></span>:<br/>Parsing Plugin - <a href="5-pp.html#SP1">&#167;1</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">property_permission</span><span class="plain-syntax"> *</span><span class="identifier-syntax">new_pp</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">CREATE_PLUGIN_PP_DATA</span><span class="plain-syntax">(</span><span class="identifier-syntax">parsing</span><span class="plain-syntax">, </span><span class="identifier-syntax">new_pp</span><span class="plain-syntax">, </span><a href="5-gp.html#SP4" class="function-link"><span class="function-syntax">Visibility::new_pp_data</span></a><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
<span class="plain-syntax">}</span>
</pre>
<p class="commentary firstcommentary"><a id="SP5" class="paragraph-anchor"></a><b>&#167;5. Visible properties. </b>A visible property is one which can be used to describe an object: for
instance, if colour is a visible property of a car, then it can be called
"green car" if and only if the current value of the colour of the car is
"green".
</p>
<p class="commentary">Properly speaking it is not the property which is visible, but the
combination of property and object (or kind): thus the following test
depends on a property permission and not a mere property.
</p>
<pre class="displayed-code all-displayed-code code-font">
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">Visibility::seek</span><button class="popup" onclick="togglePopup('usagePopup3')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup3">Usage of <span class="code-font"><span class="function-syntax">Visibility::seek</span></span>:<br/>Understand Sentences - <a href="5-us.html#SP16">&#167;16</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">property</span><span class="plain-syntax"> *</span><span class="identifier-syntax">pr</span><span class="plain-syntax">, </span><span class="identifier-syntax">inference_subject</span><span class="plain-syntax"> *</span><span class="identifier-syntax">subj</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">level</span><span class="plain-syntax">, </span><span class="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">WHENW</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">parity</span><span class="plain-syntax">, </span><span class="identifier-syntax">upto</span><span class="plain-syntax"> = </span><span class="constant-syntax">1</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Properties::is_either_or</span><span class="plain-syntax">(</span><span class="identifier-syntax">pr</span><span class="plain-syntax">) == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">) </span><span class="identifier-syntax">upto</span><span class="plain-syntax"> = </span><span class="constant-syntax">0</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">for</span><span class="plain-syntax"> (</span><span class="identifier-syntax">parity</span><span class="plain-syntax"> = </span><span class="constant-syntax">0</span><span class="plain-syntax">; </span><span class="identifier-syntax">parity</span><span class="plain-syntax"> &lt;= </span><span class="identifier-syntax">upto</span><span class="plain-syntax">; </span><span class="identifier-syntax">parity</span><span class="plain-syntax">++) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">property</span><span class="plain-syntax"> *</span><span class="identifier-syntax">seek_prn</span><span class="plain-syntax"> = (</span><span class="identifier-syntax">parity</span><span class="plain-syntax"> == </span><span class="constant-syntax">0</span><span class="plain-syntax">)?</span><span class="identifier-syntax">pr:</span><span class="plain-syntax">(</span><span class="identifier-syntax">EitherOrProperties::get_negation</span><span class="plain-syntax">(</span><span class="identifier-syntax">pr</span><span class="plain-syntax">));</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">seek_prn</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="reserved-syntax">continue</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">PropertyPermissions::find</span><span class="plain-syntax">(</span><span class="identifier-syntax">subj</span><span class="plain-syntax">, </span><span class="identifier-syntax">seek_prn</span><span class="plain-syntax">, </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">) == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="reserved-syntax">continue</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">property_permission</span><span class="plain-syntax"> *</span><span class="identifier-syntax">pp</span><span class="plain-syntax"> = </span><span class="identifier-syntax">PropertyPermissions::grant</span><span class="plain-syntax">(</span><span class="identifier-syntax">subj</span><span class="plain-syntax">, </span><span class="identifier-syntax">seek_prn</span><span class="plain-syntax">, </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">PP_PLUGIN_DATA</span><span class="plain-syntax">(</span><span class="identifier-syntax">parsing</span><span class="plain-syntax">, </span><span class="identifier-syntax">pp</span><span class="plain-syntax">)-&gt;</span><span class="element-syntax">visibility_level_in_parser</span><span class="plain-syntax"> = </span><span class="identifier-syntax">level</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">PP_PLUGIN_DATA</span><span class="plain-syntax">(</span><span class="identifier-syntax">parsing</span><span class="plain-syntax">, </span><span class="identifier-syntax">pp</span><span class="plain-syntax">)-&gt;</span><span class="element-syntax">visibility_sentence</span><span class="plain-syntax"> = </span><span class="identifier-syntax">current_sentence</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">PP_PLUGIN_DATA</span><span class="plain-syntax">(</span><span class="identifier-syntax">parsing</span><span class="plain-syntax">, </span><span class="identifier-syntax">pp</span><span class="plain-syntax">)-&gt;</span><span class="element-syntax">visibility_condition</span><span class="plain-syntax"> = </span><span class="identifier-syntax">WHENW</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
<span class="plain-syntax">}</span>
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">Visibility::any_property_visible_to_subject</span><button class="popup" onclick="togglePopup('usagePopup4')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup4">Usage of <span class="code-font"><span class="function-syntax">Visibility::any_property_visible_to_subject</span></span>:<br/>General Parsing Routines - <a href="5-gpr.html#SP4">&#167;4</a>, <a href="5-gpr.html#SP5">&#167;5</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">inference_subject</span><span class="plain-syntax"> *</span><span class="identifier-syntax">subj</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">allow_inheritance</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">property</span><span class="plain-syntax"> *</span><span class="identifier-syntax">pr</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">LOOP_OVER</span><span class="plain-syntax">(</span><span class="identifier-syntax">pr</span><span class="plain-syntax">, </span><span class="identifier-syntax">property</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">property_permission</span><span class="plain-syntax"> *</span><span class="identifier-syntax">pp</span><span class="plain-syntax"> =</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">PropertyPermissions::find</span><span class="plain-syntax">(</span><span class="identifier-syntax">subj</span><span class="plain-syntax">, </span><span class="identifier-syntax">pr</span><span class="plain-syntax">, </span><span class="identifier-syntax">allow_inheritance</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">pp</span><span class="plain-syntax">) &amp;&amp; (</span><span class="identifier-syntax">PP_PLUGIN_DATA</span><span class="plain-syntax">(</span><span class="identifier-syntax">parsing</span><span class="plain-syntax">, </span><span class="identifier-syntax">pp</span><span class="plain-syntax">)-&gt;</span><span class="element-syntax">visibility_level_in_parser</span><span class="plain-syntax"> &gt; </span><span class="constant-syntax">0</span><span class="plain-syntax">))</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
<span class="plain-syntax">}</span>
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">Visibility::get_level</span><button class="popup" onclick="togglePopup('usagePopup5')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup5">Usage of <span class="code-font"><span class="function-syntax">Visibility::get_level</span></span>:<br/>General Parsing Routines - <a href="5-gpr.html#SP9">&#167;9</a>, <a href="5-gpr.html#SP10">&#167;10</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">property_permission</span><span class="plain-syntax"> *</span><span class="identifier-syntax">pp</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">PP_PLUGIN_DATA</span><span class="plain-syntax">(</span><span class="identifier-syntax">parsing</span><span class="plain-syntax">, </span><span class="identifier-syntax">pp</span><span class="plain-syntax">)-&gt;</span><span class="element-syntax">visibility_level_in_parser</span><span class="plain-syntax">;</span>
<span class="plain-syntax">}</span>
<span class="identifier-syntax">parse_node</span><span class="plain-syntax"> *</span><span class="function-syntax">Visibility::get_condition</span><button class="popup" onclick="togglePopup('usagePopup6')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup6">Usage of <span class="code-font"><span class="function-syntax">Visibility::get_condition</span></span>:<br/>General Parsing Routines - <a href="5-gpr.html#SP10">&#167;10</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">property_permission</span><span class="plain-syntax"> *</span><span class="identifier-syntax">pp</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">parse_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">spec</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Wordings::empty</span><span class="plain-syntax">(</span><span class="identifier-syntax">PP_PLUGIN_DATA</span><span class="plain-syntax">(</span><span class="identifier-syntax">parsing</span><span class="plain-syntax">, </span><span class="identifier-syntax">pp</span><span class="plain-syntax">)-&gt;</span><span class="element-syntax">visibility_condition</span><span class="plain-syntax">)) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">spec</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="function-syntax">&lt;s-condition&gt;</span><span class="plain-syntax">(</span><span class="identifier-syntax">PP_PLUGIN_DATA</span><span class="plain-syntax">(</span><span class="identifier-syntax">parsing</span><span class="plain-syntax">, </span><span class="identifier-syntax">pp</span><span class="plain-syntax">)-&gt;</span><span class="element-syntax">visibility_condition</span><span class="plain-syntax">)) </span><span class="identifier-syntax">spec</span><span class="plain-syntax"> = </span><span class="function-syntax">&lt;&lt;rp&gt;&gt;</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">else</span><span class="plain-syntax"> </span><span class="identifier-syntax">spec</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Specifications::new_UNKNOWN</span><span class="plain-syntax">(</span><span class="identifier-syntax">PP_PLUGIN_DATA</span><span class="plain-syntax">(</span><span class="identifier-syntax">parsing</span><span class="plain-syntax">, </span><span class="identifier-syntax">pp</span><span class="plain-syntax">)-&gt;</span><span class="element-syntax">visibility_condition</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Dash::validate_conditional_clause</span><span class="plain-syntax">(</span><span class="identifier-syntax">spec</span><span class="plain-syntax">) == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">LOG</span><span class="plain-syntax">(</span><span class="string-syntax">"$T"</span><span class="plain-syntax">, </span><span class="identifier-syntax">spec</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">current_sentence</span><span class="plain-syntax"> = </span><span class="identifier-syntax">PP_PLUGIN_DATA</span><span class="plain-syntax">(</span><span class="identifier-syntax">parsing</span><span class="plain-syntax">, </span><span class="identifier-syntax">pp</span><span class="plain-syntax">)-&gt;</span><span class="element-syntax">visibility_sentence</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">StandardProblems::sentence_problem</span><span class="plain-syntax">(</span><span class="identifier-syntax">Task::syntax_tree</span><span class="plain-syntax">(), </span><span class="identifier-syntax">_p_</span><span class="plain-syntax">(</span><span class="identifier-syntax">PM_BadVisibilityWhen</span><span class="plain-syntax">),</span>
<span class="plain-syntax"> </span><span class="string-syntax">"the condition after 'when' makes no sense to me"</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="string-syntax">"although otherwise this worked - it is only the part after 'when' "</span>
<span class="plain-syntax"> </span><span class="string-syntax">"which I can't follow."</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">PP_PLUGIN_DATA</span><span class="plain-syntax">(</span><span class="identifier-syntax">parsing</span><span class="plain-syntax">, </span><span class="identifier-syntax">pp</span><span class="plain-syntax">)-&gt;</span><span class="element-syntax">visibility_condition</span><span class="plain-syntax"> = </span><span class="identifier-syntax">EMPTY_WORDING</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">spec</span><span class="plain-syntax">;</span>
<span class="plain-syntax">}</span>
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">Visibility::log_parsing_visibility</span><span class="plain-syntax">(</span><span class="identifier-syntax">inference_subject</span><span class="plain-syntax"> *</span><span class="identifier-syntax">infs</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">LOG</span><span class="plain-syntax">(</span><span class="string-syntax">"Permissions for $j:\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">infs</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">property_permission</span><span class="plain-syntax"> *</span><span class="identifier-syntax">pp</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">LOOP_OVER_PERMISSIONS_FOR_INFS</span><span class="plain-syntax">(</span><span class="identifier-syntax">pp</span><span class="plain-syntax">, </span><span class="identifier-syntax">infs</span><span class="plain-syntax">) {</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">LOG</span><span class="plain-syntax">(</span><span class="string-syntax">"$Y: visibility %d, condition %W\n"</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">PropertyPermissions::get_property</span><span class="plain-syntax">(</span><span class="identifier-syntax">pp</span><span class="plain-syntax">),</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">PP_PLUGIN_DATA</span><span class="plain-syntax">(</span><span class="identifier-syntax">parsing</span><span class="plain-syntax">, </span><span class="identifier-syntax">pp</span><span class="plain-syntax">)-&gt;</span><span class="element-syntax">visibility_level_in_parser</span><span class="plain-syntax">,</span>
<span class="plain-syntax"> </span><span class="identifier-syntax">PP_PLUGIN_DATA</span><span class="plain-syntax">(</span><span class="identifier-syntax">parsing</span><span class="plain-syntax">, </span><span class="identifier-syntax">pp</span><span class="plain-syntax">)-&gt;</span><span class="element-syntax">visibility_condition</span><span class="plain-syntax">);</span>
<span class="plain-syntax"> }</span>
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">InferenceSubjects::narrowest_broader_subject</span><span class="plain-syntax">(</span><span class="identifier-syntax">infs</span><span class="plain-syntax">))</span>
<span class="plain-syntax"> </span><a href="5-gp.html#SP5" class="function-link"><span class="function-syntax">Visibility::log_parsing_visibility</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">InferenceSubjects::narrowest_broader_subject</span><span class="plain-syntax">(</span><span class="identifier-syntax">infs</span><span class="plain-syntax">));</span>
<span class="plain-syntax">}</span>
</pre>
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