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<!--Weave of 'Named Action Patterns' generated by Inweb-->
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<div class="breadcrumbs">
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<ul class="crumbs"><li><a href="../index.html">Home</a></li><li><a href="../compiler.html">Inform7</a></li><li><a href="index.html">runtime</a></li><li><a href="index.html#5">Chapter 5: Provision Submodules</a></li><li><b>Named Action Patterns</b></li></ul></div>
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<p class="purpose">To compile the named_action_patterns submodule for a compilation unit, which contains _named_action_pattern packages.</p>
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<ul class="toc"><li><a href="5-nap.html#SP1">§1. Compilation data</a></li><li><a href="5-nap.html#SP3">§3. Compilation</a></li></ul><hr class="tocbar">
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<p class="commentary firstcommentary"><a id="SP1" class="paragraph-anchor"></a><b>§1. Compilation data. </b>Each <span class="extract"><span class="extract-syntax">named_action_pattern</span></span> object contains this data:
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</p>
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<pre class="displayed-code all-displayed-code code-font">
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<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">nap_compilation_data</span><span class="plain-syntax"> {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="identifier-syntax">package_request</span><span class="plain-syntax"> *</span><span class="identifier-syntax">nap_package</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="identifier-syntax">inter_name</span><span class="plain-syntax"> *</span><span class="identifier-syntax">test_fn_iname</span><span class="plain-syntax">;</span>
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<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">where_created</span><span class="plain-syntax">;</span>
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<span class="plain-syntax">} </span><span class="reserved-syntax">nap_compilation_data</span><span class="plain-syntax">;</span>
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<span class="reserved-syntax">nap_compilation_data</span><span class="plain-syntax"> </span><span class="function-syntax">RTNamedActionPatterns::new</span><span class="plain-syntax">(</span><span class="identifier-syntax">named_action_pattern</span><span class="plain-syntax"> *</span><span class="identifier-syntax">nap</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">nap_compilation_data</span><span class="plain-syntax"> </span><span class="identifier-syntax">ncd</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">ncd</span><span class="plain-syntax">.</span><span class="element-syntax">nap_package</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">ncd</span><span class="plain-syntax">.</span><span class="element-syntax">test_fn_iname</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">ncd</span><span class="plain-syntax">.</span><span class="element-syntax">where_created</span><span class="plain-syntax"> = </span><span class="identifier-syntax">current_sentence</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">ncd</span><span class="plain-syntax">;</span>
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<span class="plain-syntax">}</span>
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</pre>
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<ul class="endnotetexts"><li>The structure nap_compilation_data is accessed in 3/uo, 5/mlt, 5/tbl, 5/prp, 5/lp, 5/act2 and here.</li></ul>
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<p class="commentary firstcommentary"><a id="SP2" class="paragraph-anchor"></a><b>§2. </b>The package is a simple one, mainly containing a function to test whether
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the current action fits the named pattern or not.
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</p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="identifier-syntax">package_request</span><span class="plain-syntax"> *</span><span class="function-syntax">RTNamedActionPatterns::package</span><span class="plain-syntax">(</span><span class="identifier-syntax">named_action_pattern</span><span class="plain-syntax"> *</span><span class="identifier-syntax">nap</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">nap</span><span class="plain-syntax">-></span><span class="identifier-syntax">compilation_data</span><span class="plain-syntax">.</span><span class="element-syntax">nap_package</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">)</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">nap</span><span class="plain-syntax">-></span><span class="identifier-syntax">compilation_data</span><span class="plain-syntax">.</span><span class="element-syntax">nap_package</span><span class="plain-syntax"> =</span>
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<span class="plain-syntax"> </span><a href="2-hrr.html#SP19" class="function-link"><span class="function-syntax">Hierarchy::local_package_to</span></a><span class="plain-syntax">(</span><span class="constant-syntax">NAMED_ACTION_PATTERNS_HAP</span><span class="plain-syntax">,</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">nap</span><span class="plain-syntax">-></span><span class="identifier-syntax">compilation_data</span><span class="plain-syntax">.</span><span class="element-syntax">where_created</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">nap</span><span class="plain-syntax">-></span><span class="identifier-syntax">compilation_data</span><span class="plain-syntax">.</span><span class="identifier-syntax">nap_package</span><span class="plain-syntax">;</span>
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<span class="plain-syntax">}</span>
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<span class="identifier-syntax">inter_name</span><span class="plain-syntax"> *</span><span class="function-syntax">RTNamedActionPatterns::test_fn_iname</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">RTNamedActionPatterns::test_fn_iname</span></span>:<br/><a href="5-nap.html#SP3">§3</a><br/>Action Patterns - <a href="7-ap.html#SP7">§7</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">named_action_pattern</span><span class="plain-syntax"> *</span><span class="identifier-syntax">nap</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">nap</span><span class="plain-syntax">-></span><span class="identifier-syntax">compilation_data</span><span class="plain-syntax">.</span><span class="element-syntax">test_fn_iname</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">)</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">nap</span><span class="plain-syntax">-></span><span class="identifier-syntax">compilation_data</span><span class="plain-syntax">.</span><span class="element-syntax">test_fn_iname</span><span class="plain-syntax"> =</span>
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<span class="plain-syntax"> </span><a href="2-hrr.html#SP12" class="function-link"><span class="function-syntax">Hierarchy::make_iname_in</span></a><span class="plain-syntax">(</span><span class="constant-syntax">NAP_FN_HL</span><span class="plain-syntax">, </span><a href="5-nap.html#SP2" class="function-link"><span class="function-syntax">RTNamedActionPatterns::package</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">nap</span><span class="plain-syntax">));</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">nap</span><span class="plain-syntax">-></span><span class="identifier-syntax">compilation_data</span><span class="plain-syntax">.</span><span class="identifier-syntax">test_fn_iname</span><span class="plain-syntax">;</span>
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<span class="plain-syntax">}</span>
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</pre>
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<p class="commentary firstcommentary"><a id="SP3" class="paragraph-anchor"></a><b>§3. Compilation. </b></p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">RTNamedActionPatterns::compile</span><span class="plain-syntax">(</span><span class="reserved-syntax">void</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">named_action_pattern</span><span class="plain-syntax"> *</span><span class="identifier-syntax">nap</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">LOOP_OVER</span><span class="plain-syntax">(</span><span class="identifier-syntax">nap</span><span class="plain-syntax">, </span><span class="identifier-syntax">named_action_pattern</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">desc</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Str::new</span><span class="plain-syntax">();</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">desc</span><span class="plain-syntax">, </span><span class="string-syntax">"named action pattern %W"</span><span class="plain-syntax">, </span><span class="identifier-syntax">nap</span><span class="plain-syntax">-></span><span class="identifier-syntax">text_of_declaration</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">Sequence::queue</span><span class="plain-syntax">(&</span><a href="5-nap.html#SP3" class="function-link"><span class="function-syntax">RTNamedActionPatterns::compilation_agent</span></a><span class="plain-syntax">,</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">STORE_POINTER_named_action_pattern</span><span class="plain-syntax">(</span><span class="identifier-syntax">nap</span><span class="plain-syntax">), </span><span class="identifier-syntax">desc</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> }</span>
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<span class="plain-syntax">}</span>
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<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">RTNamedActionPatterns::compilation_agent</span><span class="plain-syntax">(</span><span class="identifier-syntax">compilation_subtask</span><span class="plain-syntax"> *</span><span class="identifier-syntax">t</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">named_action_pattern</span><span class="plain-syntax"> *</span><span class="identifier-syntax">nap</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RETRIEVE_POINTER_named_action_pattern</span><span class="plain-syntax">(</span><span class="identifier-syntax">t</span><span class="plain-syntax">-></span><span class="identifier-syntax">data</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">packaging_state</span><span class="plain-syntax"> </span><span class="identifier-syntax">save</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Functions::begin</span><span class="plain-syntax">(</span><a href="5-nap.html#SP2" class="function-link"><span class="function-syntax">RTNamedActionPatterns::test_fn_iname</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">nap</span><span class="plain-syntax">));</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">named_action_pattern_entry</span><span class="plain-syntax"> *</span><span class="identifier-syntax">nape</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">LOOP_OVER_LINKED_LIST</span><span class="plain-syntax">(</span><span class="identifier-syntax">nape</span><span class="plain-syntax">, </span><span class="identifier-syntax">named_action_pattern_entry</span><span class="plain-syntax">, </span><span class="identifier-syntax">nap</span><span class="plain-syntax">-></span><span class="identifier-syntax">patterns</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">action_pattern</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ap</span><span class="plain-syntax"> = </span><span class="identifier-syntax">nape</span><span class="plain-syntax">-></span><span class="identifier-syntax">behaviour</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">current_sentence</span><span class="plain-syntax"> = </span><span class="identifier-syntax">nape</span><span class="plain-syntax">-></span><span class="identifier-syntax">where_decided</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><a href="2-ec.html#SP12" class="function-link"><span class="function-syntax">EmitCode::inv</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">IF_BIP</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><a href="2-ec.html#SP3" class="function-link"><span class="function-syntax">EmitCode::down</span></a><span class="plain-syntax">();</span>
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<span class="plain-syntax"> </span><a href="7-ap.html#SP5" class="function-link"><span class="function-syntax">RTActionPatterns::emit_pattern_match</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">ap</span><span class="plain-syntax">, </span><span class="identifier-syntax">TRUE</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><a href="2-ec.html#SP5" class="function-link"><span class="function-syntax">EmitCode::code</span></a><span class="plain-syntax">();</span>
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<span class="plain-syntax"> </span><a href="2-ec.html#SP3" class="function-link"><span class="function-syntax">EmitCode::down</span></a><span class="plain-syntax">();</span>
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<span class="plain-syntax"> </span><a href="2-ec.html#SP13" class="function-link"><span class="function-syntax">EmitCode::rtrue</span></a><span class="plain-syntax">();</span>
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<span class="plain-syntax"> </span><a href="2-ec.html#SP3" class="function-link"><span class="function-syntax">EmitCode::up</span></a><span class="plain-syntax">();</span>
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<span class="plain-syntax"> </span><a href="2-ec.html#SP3" class="function-link"><span class="function-syntax">EmitCode::up</span></a><span class="plain-syntax">();</span>
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<span class="plain-syntax"> }</span>
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<span class="plain-syntax"> </span><a href="2-ec.html#SP13" class="function-link"><span class="function-syntax">EmitCode::rfalse</span></a><span class="plain-syntax">();</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">Functions::end</span><span class="plain-syntax">(</span><span class="identifier-syntax">save</span><span class="plain-syntax">);</span>
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<span class="plain-syntax">}</span>
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