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<!--Weave of 'Kind Predicates' 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="../services.html">Services</a></li><li><a href="index.html">calculus</a></li><li><a href="index.html#2">Chapter 2: Unary Predicates</a></li><li><b>Kind Predicates</b></li></ul></div>
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<p class="purpose">To define the predicates for membership of a kind.</p>
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<p class="commentary firstcommentary"><a id="SP1" class="paragraph-anchor"></a><b>§1. </b>For every kind <span class="extract"><span class="extract-syntax">K</span></span>, the <a href="index.html" class="internal">calculus</a> module provides a unary predicate <span class="extract"><span class="extract-syntax">kind=K</span></span>,
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and these all belong to the family:
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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">up_family</span><span class="plain-syntax"> *</span><span class="identifier-syntax">kind_up_family</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
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</pre>
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<p class="commentary firstcommentary"><a id="SP2" class="paragraph-anchor"></a><b>§2. </b>At startup, the <a href="index.html" class="internal">calculus</a> module calls:
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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">void</span><span class="plain-syntax"> </span><span class="function-syntax">KindPredicates::start</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">KindPredicates::start</span></span>:<br/>Calculus Module - <a href="1-cm.html#SP3">§3</a></span></button><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">kind_up_family</span><span class="plain-syntax"> = </span><a href="2-upf.html#SP1" class="function-link"><span class="function-syntax">UnaryPredicateFamilies::new</span></a><span class="plain-syntax">();</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">METHOD_ADD</span><span class="plain-syntax">(</span><span class="identifier-syntax">kind_up_family</span><span class="plain-syntax">, </span><span class="constant-syntax">LOG_UPF_MTID</span><span class="plain-syntax">, </span><a href="2-kp.html#SP7" class="function-link"><span class="function-syntax">KindPredicates::log_kind</span></a><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">METHOD_ADD</span><span class="plain-syntax">(</span><span class="identifier-syntax">kind_up_family</span><span class="plain-syntax">, </span><span class="constant-syntax">INFER_KIND_UPF_MTID</span><span class="plain-syntax">, </span><a href="2-kp.html#SP5" class="function-link"><span class="function-syntax">KindPredicates::infer_kind</span></a><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">METHOD_ADD</span><span class="plain-syntax">(</span><span class="identifier-syntax">kind_up_family</span><span class="plain-syntax">, </span><span class="constant-syntax">TESTABLE_UPF_MTID</span><span class="plain-syntax">, </span><a href="2-kp.html#SP6" class="function-link"><span class="function-syntax">KindPredicates::testable</span></a><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">METHOD_ADD</span><span class="plain-syntax">(</span><span class="identifier-syntax">kind_up_family</span><span class="plain-syntax">, </span><span class="constant-syntax">TEST_UPF_MTID</span><span class="plain-syntax">, </span><a href="2-kp.html#SP6" class="function-link"><span class="function-syntax">KindPredicates::test</span></a><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. </b></p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="reserved-syntax">pcalc_prop</span><span class="plain-syntax"> *</span><span class="function-syntax">KindPredicates::new_atom</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">KindPredicates::new_atom</span></span>:<br/>Sentence Conversions - <a href="5-sc.html#SP3_3">§3.3</a><br/>Simplifications - <a href="5-smp.html#SP2_2">§2.2</a>, <a href="5-smp.html#SP3">§3</a>, <a href="5-smp.html#SP7">§7</a>, <a href="5-smp.html#SP9_3_2">§9.3.2</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">kind</span><span class="plain-syntax"> *</span><span class="identifier-syntax">K</span><span class="plain-syntax">, </span><span class="reserved-syntax">pcalc_term</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="reserved-syntax">unary_predicate</span><span class="plain-syntax"> *</span><span class="identifier-syntax">up</span><span class="plain-syntax"> = </span><a href="2-up.html#SP2" class="function-link"><span class="function-syntax">UnaryPredicates::new</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">kind_up_family</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">up</span><span class="plain-syntax">-></span><span class="element-syntax">assert_kind</span><span class="plain-syntax"> = </span><span class="identifier-syntax">K</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><a href="4-ap.html#SP9" class="function-link"><span class="function-syntax">Atoms::unary_PREDICATE_new</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">up</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>
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<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">KindPredicates::is_kind_atom</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">KindPredicates::is_kind_atom</span></span>:<br/>Propositions - <a href="4-prp.html#SP29">§29</a><br/>Binding and Substitution - <a href="4-bas.html#SP14">§14</a><br/>Type Check Propositions - <a href="4-tcp.html#SP4_2">§4.2</a><br/>Simplifications - <a href="5-smp.html#SP9_3">§9.3</a>, <a href="5-smp.html#SP9_3_1">§9.3.1</a>, <a href="5-smp.html#SP9_4">§9.4</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">pcalc_prop</span><span class="plain-syntax"> *</span><span class="identifier-syntax">prop</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">prop</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">prop</span><span class="plain-syntax">-></span><span class="element-syntax">element</span><span class="plain-syntax"> == </span><span class="constant-syntax">PREDICATE_ATOM</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">prop</span><span class="plain-syntax">-></span><span class="element-syntax">arity</span><span class="plain-syntax"> == </span><span class="constant-syntax">1</span><span class="plain-syntax">)) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">unary_predicate</span><span class="plain-syntax"> *</span><span class="identifier-syntax">up</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RETRIEVE_POINTER_unary_predicate</span><span class="plain-syntax">(</span><span class="identifier-syntax">prop</span><span class="plain-syntax">-></span><span class="element-syntax">predicate</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">up</span><span class="plain-syntax">-></span><span class="element-syntax">family</span><span class="plain-syntax"> == </span><span class="identifier-syntax">kind_up_family</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>
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<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">FALSE</span><span class="plain-syntax">;</span>
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<span class="plain-syntax">}</span>
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<span class="identifier-syntax">kind</span><span class="plain-syntax"> *</span><span class="function-syntax">KindPredicates::get_kind</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">KindPredicates::get_kind</span></span>:<br/>Propositions - <a href="4-prp.html#SP25">§25</a>, <a href="4-prp.html#SP29">§29</a><br/>Binding and Substitution - <a href="4-bas.html#SP14">§14</a><br/>Type Check Propositions - <a href="4-tcp.html#SP4_2">§4.2</a><br/>Sentence Conversions - <a href="5-sc.html#SP2_13_1">§2.13.1</a><br/>Simplifications - <a href="5-smp.html#SP9_3">§9.3</a>, <a href="5-smp.html#SP9_3_1">§9.3.1</a>, <a href="5-smp.html#SP9_4">§9.4</a>, <a href="5-smp.html#SP14">§14</a>, <a href="5-smp.html#SP18">§18</a>, <a href="5-smp.html#SP19">§19</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">pcalc_prop</span><span class="plain-syntax"> *</span><span class="identifier-syntax">prop</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">prop</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">prop</span><span class="plain-syntax">-></span><span class="element-syntax">element</span><span class="plain-syntax"> == </span><span class="constant-syntax">PREDICATE_ATOM</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">prop</span><span class="plain-syntax">-></span><span class="element-syntax">arity</span><span class="plain-syntax"> == </span><span class="constant-syntax">1</span><span class="plain-syntax">)) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">unary_predicate</span><span class="plain-syntax"> *</span><span class="identifier-syntax">up</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RETRIEVE_POINTER_unary_predicate</span><span class="plain-syntax">(</span><span class="identifier-syntax">prop</span><span class="plain-syntax">-></span><span class="element-syntax">predicate</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">up</span><span class="plain-syntax">-></span><span class="element-syntax">family</span><span class="plain-syntax"> == </span><span class="identifier-syntax">kind_up_family</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">up</span><span class="plain-syntax">-></span><span class="element-syntax">assert_kind</span><span class="plain-syntax">;</span>
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<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">NULL</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="SP4" class="paragraph-anchor"></a><b>§4. </b>Composited kind predicates are special in that they represent composites
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of quantifiers with common nouns — for example, "everyone" is a composite
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meaning "every person".
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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">pcalc_prop</span><span class="plain-syntax"> *</span><span class="function-syntax">KindPredicates::new_composited_atom</span><span class="plain-syntax">(</span><span class="identifier-syntax">kind</span><span class="plain-syntax"> *</span><span class="identifier-syntax">K</span><span class="plain-syntax">, </span><span class="reserved-syntax">pcalc_term</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="reserved-syntax">unary_predicate</span><span class="plain-syntax"> *</span><span class="identifier-syntax">up</span><span class="plain-syntax"> = </span><a href="2-up.html#SP2" class="function-link"><span class="function-syntax">UnaryPredicates::new</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">kind_up_family</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">up</span><span class="plain-syntax">-></span><span class="element-syntax">assert_kind</span><span class="plain-syntax"> = </span><span class="identifier-syntax">K</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">up</span><span class="plain-syntax">-></span><span class="element-syntax">composited</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><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="4-ap.html#SP9" class="function-link"><span class="function-syntax">Atoms::unary_PREDICATE_new</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">up</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>
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<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">KindPredicates::is_composited_atom</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">KindPredicates::is_composited_atom</span></span>:<br/>Propositions - <a href="4-prp.html#SP24">§24</a><br/>Simplifications - <a href="5-smp.html#SP18">§18</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">pcalc_prop</span><span class="plain-syntax"> *</span><span class="identifier-syntax">prop</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">prop</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">prop</span><span class="plain-syntax">-></span><span class="element-syntax">element</span><span class="plain-syntax"> == </span><span class="constant-syntax">PREDICATE_ATOM</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">prop</span><span class="plain-syntax">-></span><span class="element-syntax">arity</span><span class="plain-syntax"> == </span><span class="constant-syntax">1</span><span class="plain-syntax">)) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">unary_predicate</span><span class="plain-syntax"> *</span><span class="identifier-syntax">up</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RETRIEVE_POINTER_unary_predicate</span><span class="plain-syntax">(</span><span class="identifier-syntax">prop</span><span class="plain-syntax">-></span><span class="element-syntax">predicate</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">up</span><span class="plain-syntax">-></span><span class="element-syntax">family</span><span class="plain-syntax"> == </span><span class="identifier-syntax">kind_up_family</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">up</span><span class="plain-syntax">-></span><span class="element-syntax">composited</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>
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<span class="plain-syntax"> }</span>
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<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">FALSE</span><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">KindPredicates::set_composited</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">KindPredicates::set_composited</span></span>:<br/>Sentence Conversions - <a href="5-sc.html#SP2_13_1">§2.13.1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">pcalc_prop</span><span class="plain-syntax"> *</span><span class="identifier-syntax">prop</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">state</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">prop</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">prop</span><span class="plain-syntax">-></span><span class="element-syntax">element</span><span class="plain-syntax"> == </span><span class="constant-syntax">PREDICATE_ATOM</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">prop</span><span class="plain-syntax">-></span><span class="element-syntax">arity</span><span class="plain-syntax"> == </span><span class="constant-syntax">1</span><span class="plain-syntax">)) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">unary_predicate</span><span class="plain-syntax"> *</span><span class="identifier-syntax">up</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RETRIEVE_POINTER_unary_predicate</span><span class="plain-syntax">(</span><span class="identifier-syntax">prop</span><span class="plain-syntax">-></span><span class="element-syntax">predicate</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">up</span><span class="plain-syntax">-></span><span class="element-syntax">family</span><span class="plain-syntax"> == </span><span class="identifier-syntax">kind_up_family</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">up</span><span class="plain-syntax">-></span><span class="element-syntax">composited</span><span class="plain-syntax"> = </span><span class="identifier-syntax">state</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="plain-syntax">}</span>
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</pre>
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<p class="commentary firstcommentary"><a id="SP5" class="paragraph-anchor"></a><b>§5. </b>Unarticled kinds are those which were introduced without an article, in
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the linguistic sense.
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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">int</span><span class="plain-syntax"> </span><span class="function-syntax">KindPredicates::is_unarticled_atom</span><button class="popup" onclick="togglePopup('usagePopup7')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup7">Usage of <span class="code-font"><span class="function-syntax">KindPredicates::is_unarticled_atom</span></span>:<br/>Type Check Propositions - <a href="4-tcp.html#SP4_3">§4.3</a><br/>Simplifications - <a href="5-smp.html#SP9_3_2">§9.3.2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">pcalc_prop</span><span class="plain-syntax"> *</span><span class="identifier-syntax">prop</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">prop</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">prop</span><span class="plain-syntax">-></span><span class="element-syntax">element</span><span class="plain-syntax"> == </span><span class="constant-syntax">PREDICATE_ATOM</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">prop</span><span class="plain-syntax">-></span><span class="element-syntax">arity</span><span class="plain-syntax"> == </span><span class="constant-syntax">1</span><span class="plain-syntax">)) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">unary_predicate</span><span class="plain-syntax"> *</span><span class="identifier-syntax">up</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RETRIEVE_POINTER_unary_predicate</span><span class="plain-syntax">(</span><span class="identifier-syntax">prop</span><span class="plain-syntax">-></span><span class="element-syntax">predicate</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">up</span><span class="plain-syntax">-></span><span class="element-syntax">family</span><span class="plain-syntax"> == </span><span class="identifier-syntax">kind_up_family</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">up</span><span class="plain-syntax">-></span><span class="element-syntax">unarticled</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>
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<span class="plain-syntax"> }</span>
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<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">FALSE</span><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">KindPredicates::set_unarticled</span><button class="popup" onclick="togglePopup('usagePopup8')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup8">Usage of <span class="code-font"><span class="function-syntax">KindPredicates::set_unarticled</span></span>:<br/>Sentence Conversions - <a href="5-sc.html#SP3_4">§3.4</a><br/>Simplifications - <a href="5-smp.html#SP9_3_2">§9.3.2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">pcalc_prop</span><span class="plain-syntax"> *</span><span class="identifier-syntax">prop</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">state</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">prop</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">prop</span><span class="plain-syntax">-></span><span class="element-syntax">element</span><span class="plain-syntax"> == </span><span class="constant-syntax">PREDICATE_ATOM</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">prop</span><span class="plain-syntax">-></span><span class="element-syntax">arity</span><span class="plain-syntax"> == </span><span class="constant-syntax">1</span><span class="plain-syntax">)) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">unary_predicate</span><span class="plain-syntax"> *</span><span class="identifier-syntax">up</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RETRIEVE_POINTER_unary_predicate</span><span class="plain-syntax">(</span><span class="identifier-syntax">prop</span><span class="plain-syntax">-></span><span class="element-syntax">predicate</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">up</span><span class="plain-syntax">-></span><span class="element-syntax">family</span><span class="plain-syntax"> == </span><span class="identifier-syntax">kind_up_family</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">up</span><span class="plain-syntax">-></span><span class="element-syntax">unarticled</span><span class="plain-syntax"> = </span><span class="identifier-syntax">state</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="plain-syntax">}</span>
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<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">KindPredicates::infer_kind</span><button class="popup" onclick="togglePopup('usagePopup9')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup9">Usage of <span class="code-font"><span class="function-syntax">KindPredicates::infer_kind</span></span>:<br/><a href="2-kp.html#SP2">§2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">up_family</span><span class="plain-syntax"> *</span><span class="identifier-syntax">self</span><span class="plain-syntax">, </span><span class="reserved-syntax">unary_predicate</span><span class="plain-syntax"> *</span><span class="identifier-syntax">up</span><span class="plain-syntax">, </span><span class="identifier-syntax">kind</span><span class="plain-syntax"> **</span><span class="identifier-syntax">K</span><span class="plain-syntax">) {</span>
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|
<span class="plain-syntax"> *</span><span class="identifier-syntax">K</span><span class="plain-syntax"> = </span><span class="identifier-syntax">up</span><span class="plain-syntax">-></span><span class="element-syntax">assert_kind</span><span class="plain-syntax">;</span>
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|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP6" class="paragraph-anchor"></a><b>§6. </b>The following functions express that (i) <span class="extract"><span class="extract-syntax">kind=K</span></span> predicates can always be
|
|
determined at compile-time, and that (ii) they are always true. This is because
|
|
the test is performed only after a proposition has been type-checked: and if
|
|
it passed type-checking, then the kinds must all be okay.
|
|
</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">KindPredicates::testable</span><button class="popup" onclick="togglePopup('usagePopup10')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup10">Usage of <span class="code-font"><span class="function-syntax">KindPredicates::testable</span></span>:<br/><a href="2-kp.html#SP2">§2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">up_family</span><span class="plain-syntax"> *</span><span class="identifier-syntax">self</span><span class="plain-syntax">, </span><span class="reserved-syntax">unary_predicate</span><span class="plain-syntax"> *</span><span class="identifier-syntax">up</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="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="function-syntax">KindPredicates::test</span><button class="popup" onclick="togglePopup('usagePopup11')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup11">Usage of <span class="code-font"><span class="function-syntax">KindPredicates::test</span></span>:<br/><a href="2-kp.html#SP2">§2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">up_family</span><span class="plain-syntax"> *</span><span class="identifier-syntax">self</span><span class="plain-syntax">, </span><span class="reserved-syntax">unary_predicate</span><span class="plain-syntax"> *</span><span class="identifier-syntax">up</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="constant-syntax">TERM_DOMAIN_CALCULUS_TYPE</span><span class="plain-syntax"> *</span><span class="identifier-syntax">about</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>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP7" class="paragraph-anchor"></a><b>§7. </b></p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">KindPredicates::log_kind</span><button class="popup" onclick="togglePopup('usagePopup12')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup12">Usage of <span class="code-font"><span class="function-syntax">KindPredicates::log_kind</span></span>:<br/><a href="2-kp.html#SP2">§2</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">up_family</span><span class="plain-syntax"> *</span><span class="identifier-syntax">self</span><span class="plain-syntax">, </span><span class="identifier-syntax">OUTPUT_STREAM</span><span class="plain-syntax">, </span><span class="reserved-syntax">unary_predicate</span><span class="plain-syntax"> *</span><span class="identifier-syntax">up</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">Streams::I6_escapes_enabled</span><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">) == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">) </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"kind="</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"%u"</span><span class="plain-syntax">, </span><span class="identifier-syntax">up</span><span class="plain-syntax">-></span><span class="element-syntax">assert_kind</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">Streams::I6_escapes_enabled</span><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">) == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">up</span><span class="plain-syntax">-></span><span class="element-syntax">composited</span><span class="plain-syntax">)) </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"_c"</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">Streams::I6_escapes_enabled</span><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">) == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">up</span><span class="plain-syntax">-></span><span class="element-syntax">unarticled</span><span class="plain-syntax">)) </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"_u"</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
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