mirror of
https://github.com/ganelson/inform.git
synced 2024-07-17 06:24:24 +03:00
497 lines
80 KiB
HTML
497 lines
80 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
|
|
<html>
|
|
<head>
|
|
<title>Compile Atoms</title>
|
|
<link href="../docs-assets/Breadcrumbs.css" rel="stylesheet" rev="stylesheet" type="text/css">
|
|
<meta name="viewport" content="width=device-width initial-scale=1">
|
|
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
|
|
<meta http-equiv="Content-Language" content="en-gb">
|
|
|
|
<link href="../docs-assets/Contents.css" rel="stylesheet" rev="stylesheet" type="text/css">
|
|
<link href="../docs-assets/Progress.css" rel="stylesheet" rev="stylesheet" type="text/css">
|
|
<link href="../docs-assets/Navigation.css" rel="stylesheet" rev="stylesheet" type="text/css">
|
|
<link href="../docs-assets/Fonts.css" rel="stylesheet" rev="stylesheet" type="text/css">
|
|
<link href="../docs-assets/Base.css" rel="stylesheet" rev="stylesheet" type="text/css">
|
|
<script>
|
|
function togglePopup(material_id) {
|
|
var popup = document.getElementById(material_id);
|
|
popup.classList.toggle("show");
|
|
}
|
|
</script>
|
|
|
|
<link href="../docs-assets/Popups.css" rel="stylesheet" rev="stylesheet" type="text/css">
|
|
<script>
|
|
MathJax = {
|
|
tex: {
|
|
inlineMath: '$', '$'], ['\\(', '\\)'
|
|
},
|
|
svg: {
|
|
fontCache: 'global'
|
|
}
|
|
};
|
|
</script>
|
|
<script type="text/javascript" id="MathJax-script" async
|
|
src="https://cdn.jsdelivr.net/npm/mathjax@3/es5/tex-svg.js">
|
|
</script>
|
|
|
|
<link href="../docs-assets/Colours.css" rel="stylesheet" rev="stylesheet" type="text/css">
|
|
|
|
</head>
|
|
<body class="commentary-font">
|
|
<nav role="navigation">
|
|
<h1><a href="../index.html">
|
|
<img src="../docs-assets/Inform.png" height=72">
|
|
</a></h1>
|
|
<ul><li><a href="../compiler.html">compiler tools</a></li>
|
|
<li><a href="../other.html">other tools</a></li>
|
|
<li><a href="../extensions.html">extensions and kits</a></li>
|
|
<li><a href="../units.html">unit test tools</a></li>
|
|
</ul><h2>Compiler Webs</h2><ul>
|
|
<li><a href="../inbuild/index.html">inbuild</a></li>
|
|
<li><a href="../inform7/index.html">inform7</a></li>
|
|
<li><a href="../inter/index.html">inter</a></li>
|
|
</ul><h2>Inbuild Modules</h2><ul>
|
|
<li><a href="../supervisor-module/index.html">supervisor</a></li>
|
|
</ul><h2>Inform7 Modules</h2><ul>
|
|
<li><a href="index.html"><span class="selectedlink">core</span></a></li>
|
|
<li><a href="../kinds-module/index.html">kinds</a></li>
|
|
<li><a href="../if-module/index.html">if</a></li>
|
|
<li><a href="../multimedia-module/index.html">multimedia</a></li>
|
|
<li><a href="../index-module/index.html">index</a></li>
|
|
</ul><h2>Inter Modules</h2><ul>
|
|
<li><a href="../bytecode-module/index.html">bytecode</a></li>
|
|
<li><a href="../building-module/index.html">building</a></li>
|
|
<li><a href="../codegen-module/index.html">codegen</a></li>
|
|
</ul><h2>Services</h2><ul>
|
|
<li><a href="../arch-module/index.html">arch</a></li>
|
|
<li><a href="../syntax-module/index.html">syntax</a></li>
|
|
<li><a href="../words-module/index.html">words</a></li>
|
|
<li><a href="../html-module/index.html">html</a></li>
|
|
<li><a href="../inflections-module/index.html">inflections</a></li>
|
|
<li><a href="../linguistics-module/index.html">linguistics</a></li>
|
|
<li><a href="../problems-module/index.html">problems</a></li>
|
|
<li><a href="../../../inweb/docs/foundation-module/index.html">foundation</a></li>
|
|
|
|
</ul>
|
|
</nav>
|
|
<main role="main">
|
|
<!--Weave of 'Compile Atoms' generated by Inweb-->
|
|
<div class="breadcrumbs">
|
|
<ul class="crumbs"><li><a href="../index.html">Home</a></li><li><a href="../compiler.html">Inform7 Modules</a></li><li><a href="index.html">core</a></li><li><a href="index.html#12">Chapter 12: Use of Propositions</a></li><li><b>Compile Atoms</b></li></ul></div>
|
|
<p class="purpose">In this section, given an atom of a proposition we compile I6 code as required for any of three possible outcomes: (i) to test whether it is true, (ii) to make it henceforth true, or (iii) to make it henceforth false.</p>
|
|
|
|
<ul class="toc"><li><a href="12-ca.html#SP4_1">§4.1. Stage 1</a></li><li><a href="12-ca.html#SP4_2">§4.2. Stage 2</a></li><li><a href="12-ca.html#SP5">§5. Constructing the schema</a></li><li><a href="12-ca.html#SP7">§7. An unannotated one</a></li></ul><hr class="tocbar">
|
|
|
|
<p class="commentary firstcommentary"><a id="SP1"></a><b>§1. </b>The compilation method is to look at the atom, work out a suitable I6
|
|
schema involving code to be applied to the one or two terms attaching to
|
|
the atom, and then expand this. In some circumstances, the process of
|
|
finding the schema will reveal that we need to apply it to different terms
|
|
from those originally found in the atom, however, so we also need to keep
|
|
track of that; and also of whether a condition is being regarded
|
|
negatively.
|
|
</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">annotated_i6_schema</span><span class="plain-syntax"> {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">i6_schema</span><span class="plain-syntax"> *</span><span class="identifier-syntax">schema</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">negate_schema</span><span class="plain-syntax">; </span><span class="comment-syntax"> true if atom is to be tested with the opposite parity</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">pcalc_term</span><span class="plain-syntax"> </span><span class="identifier-syntax">pt0</span><span class="plain-syntax">; </span><span class="comment-syntax"> terms on which the I6 schema is to be expanded</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">pcalc_term</span><span class="plain-syntax"> </span><span class="identifier-syntax">pt1</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">involves_action_variables</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">} </span><span class="reserved-syntax">annotated_i6_schema</span><span class="plain-syntax">;</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>The structure annotated_i6_schema is accessed in 7/bp, 7/tur, 12/ter, 12/qr, 15/tpr, 15/cr, 15/spr2 and here.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP2"></a><b>§2. </b>Some constants to enumerate the three cases of what we are to do. This
|
|
looks asymmetrical — shouldn't we also test to see whether an atom is false,
|
|
a fourth case?
|
|
</p>
|
|
|
|
<p class="commentary">The answer is that there's no need, since "test false" can be done by
|
|
compiling "test true" and applying the I7 negation operator <span class="extract"><span class="extract-syntax">~~</span></span> to the
|
|
result. No similar trick can be used to combine making something
|
|
true or false into a single operation.
|
|
</p>
|
|
|
|
<pre class="definitions code-font"><span class="definition-keyword">define</span> <span class="constant-syntax">TEST_ATOM_TASK</span><span class="plain-syntax"> </span><span class="constant-syntax">1</span>
|
|
<span class="definition-keyword">define</span> <span class="constant-syntax">NOW_ATOM_TRUE_TASK</span><span class="plain-syntax"> </span><span class="constant-syntax">2</span>
|
|
<span class="definition-keyword">define</span> <span class="constant-syntax">NOW_ATOM_FALSE_TASK</span><span class="plain-syntax"> </span><span class="constant-syntax">3</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP3"></a><b>§3. </b>For its internal purposes, Inform is sometimes able to compile atoms which
|
|
wouldn't be allowed in a typical use of "now" from the source text; so it
|
|
can suppress the following problem messages:
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">suppress_C14CantChangeKind</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
|
|
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">suppress_C14ActionVarsPastTense</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP4"></a><b>§4. </b>So, then:
|
|
</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">Calculus::Atoms::Compile::emit</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">Calculus::Atoms::Compile::emit</span></span>:<br/>Deciding to Defer - <a href="12-dtd.html#SP10">§10</a><br/>Compile Deferred Propositions - <a href="12-cdp.html#SP2_1_6_1_2_3_2">§2.1.6.1.2.3.2</a>, <a href="12-cdp.html#SP2_1_6_1_2_3_4">§2.1.6.1.2.3.4</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">task</span><span class="plain-syntax">, </span><span class="reserved-syntax">pcalc_prop</span><span class="plain-syntax"> *</span><span class="identifier-syntax">pl</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">with_semicolon</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">value_holster</span><span class="plain-syntax"> </span><span class="identifier-syntax">VH</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Holsters::new</span><span class="plain-syntax">(</span><span class="identifier-syntax">INTER_VAL_VHMODE</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><a href="12-ca.html#SP4" class="function-link"><span class="function-syntax">Calculus::Atoms::Compile::compile</span></a><span class="plain-syntax">(&</span><span class="identifier-syntax">VH</span><span class="plain-syntax">, </span><span class="identifier-syntax">task</span><span class="plain-syntax">, </span><span class="identifier-syntax">pl</span><span class="plain-syntax">, </span><span class="identifier-syntax">with_semicolon</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">Calculus::Atoms::Compile::compile</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">Calculus::Atoms::Compile::compile</span></span>:<br/>Deciding to Defer - <a href="12-dtd.html#SP7">§7</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">value_holster</span><span class="plain-syntax"> *</span><span class="identifier-syntax">VH</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">task</span><span class="plain-syntax">, </span><span class="reserved-syntax">pcalc_prop</span><span class="plain-syntax"> *</span><span class="identifier-syntax">pl</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">with_semicolon</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">i6_schema</span><span class="plain-syntax"> </span><span class="identifier-syntax">sch</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">annotated_i6_schema</span><span class="plain-syntax"> </span><span class="identifier-syntax">asch</span><span class="plain-syntax">;</span>
|
|
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">switch</span><span class="plain-syntax"> (</span><span class="identifier-syntax">task</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">TEST_ATOM_TASK:</span><span class="plain-syntax"> </span><span class="identifier-syntax">LOGIF</span><span class="plain-syntax">(</span><span class="identifier-syntax">PREDICATE_CALCULUS_WORKINGS</span><span class="plain-syntax">, </span><span class="string-syntax">"Compiling condition: $o\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">pl</span><span class="plain-syntax">); </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">NOW_ATOM_TRUE_TASK:</span><span class="plain-syntax"> </span><span class="identifier-syntax">LOGIF</span><span class="plain-syntax">(</span><span class="identifier-syntax">PREDICATE_CALCULUS_WORKINGS</span><span class="plain-syntax">, </span><span class="string-syntax">"Compiling 'now': $o\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">pl</span><span class="plain-syntax">); </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">NOW_ATOM_FALSE_TASK:</span><span class="plain-syntax"> </span><span class="identifier-syntax">LOGIF</span><span class="plain-syntax">(</span><span class="identifier-syntax">PREDICATE_CALCULUS_WORKINGS</span><span class="plain-syntax">, </span><span class="string-syntax">"Compiling 'now' false: $o\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">pl</span><span class="plain-syntax">); </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">default:</span><span class="plain-syntax"> </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"unknown compile task"</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> }</span>
|
|
|
|
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="12-ca.html#SP4_1" class="named-paragraph-link"><span class="named-paragraph">Stage 1: make an annotated schema from the atom</span><span class="named-paragraph-number">4.1</span></a></span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="12-ca.html#SP4_2" class="named-paragraph-link"><span class="named-paragraph">Stage 2: expand that schema to the output stream</span><span class="named-paragraph-number">4.2</span></a></span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP4_1"></a><b>§4.1. Stage 1. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Stage 1: make an annotated schema from the atom</span><span class="named-paragraph-number">4.1</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">asch</span><span class="plain-syntax"> = </span><a href="12-ca.html#SP5" class="function-link"><span class="function-syntax">Calculus::Atoms::Compile::i6_schema_of_atom</span></a><span class="plain-syntax">(&</span><span class="identifier-syntax">sch</span><span class="plain-syntax">, </span><span class="identifier-syntax">pl</span><span class="plain-syntax">, </span><span class="identifier-syntax">task</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">asch</span><span class="plain-syntax">.</span><span class="element-syntax">schema</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="identifier-syntax">problem_count</span><span class="plain-syntax"> == </span><span class="constant-syntax">0</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="12-ca.html#SP4_1_1" class="named-paragraph-link"><span class="named-paragraph">Issue a fallback problem message, since the schema-maker evidently didn't</span><span class="named-paragraph-number">4.1.1</span></a></span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="12-ca.html#SP4_1_2" class="named-paragraph-link"><span class="named-paragraph">Reject all discussion of the action variables in the past tense</span><span class="named-paragraph-number">4.1.2</span></a></span><span class="plain-syntax">;</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="12-ca.html#SP4">§4</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP4_1_1"></a><b>§4.1.1. </b><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Issue a fallback problem message, since the schema-maker evidently didn't</span><span class="named-paragraph-number">4.1.1</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">LOG</span><span class="plain-syntax">(</span><span class="string-syntax">"Failed on task: $o\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">pl</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">task</span><span class="plain-syntax"> == </span><span class="constant-syntax">TEST_ATOM_TASK</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">StandardProblems::sentence_problem</span><span class="plain-syntax">(</span><a href="1-wtc.html#SP6" class="function-link"><span class="function-syntax">Task::syntax_tree</span></a><span class="plain-syntax">(), </span><span class="identifier-syntax">_p_</span><span class="plain-syntax">(</span><span class="identifier-syntax">BelievedImpossible</span><span class="plain-syntax">),</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"this is not a condition I am able to test"</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"or at any rate not during play."</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">StandardProblems::sentence_problem</span><span class="plain-syntax">(</span><a href="1-wtc.html#SP6" class="function-link"><span class="function-syntax">Task::syntax_tree</span></a><span class="plain-syntax">(), </span><span class="identifier-syntax">_p_</span><span class="plain-syntax">(</span><span class="identifier-syntax">PM_CantForceRelation</span><span class="plain-syntax">),</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"this is not something I can make true with 'now'"</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"because it is too vague about the underlying cause which would "</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"need to be arranged."</span><span class="plain-syntax">);</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="12-ca.html#SP4_1">§4.1</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP4_1_2"></a><b>§4.1.2. </b>This is in the user's own best interest.
|
|
</p>
|
|
|
|
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Reject all discussion of the action variables in the past tense</span><span class="named-paragraph-number">4.1.2</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">asch</span><span class="plain-syntax">.</span><span class="element-syntax">involves_action_variables</span><span class="plain-syntax">) &&</span>
|
|
<span class="plain-syntax"> (</span><a href="24-sf.html#SP11" class="function-link"><span class="function-syntax">Frames::used_for_past_tense</span></a><span class="plain-syntax">()) &&</span>
|
|
<span class="plain-syntax"> (</span><span class="identifier-syntax">suppress_C14ActionVarsPastTense</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">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">problem_count</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">StandardProblems::sentence_problem</span><span class="plain-syntax">(</span><a href="1-wtc.html#SP6" class="function-link"><span class="function-syntax">Task::syntax_tree</span></a><span class="plain-syntax">(), </span><span class="identifier-syntax">_p_</span><span class="plain-syntax">(</span><span class="identifier-syntax">PM_ActionVarsPastTense</span><span class="plain-syntax">),</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"it is misleading to talk about the noun, the second noun "</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"or the person asked to do something in past tenses"</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"because in the past, those were different things and "</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"people, or may have been nothing at all. Writing "</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"'if the noun has been unlocked' tends not to do what we "</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"might hope because the value of 'noun' changes every turn. "</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"So such conditions are not allowed, although to get around "</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"this we can instead write 'if we have unlocked the noun', "</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"which uses a special mechanism to remember everything which "</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"has happened to every object."</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> }</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="12-ca.html#SP4_1">§4.1</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP4_2"></a><b>§4.2. Stage 2. </b>A valid I6 condition has to be bracketed, so we surround the output with
|
|
brackets if testing; and a valid I6 statement has to end with a semicolon,
|
|
so we terminate with that if making true or false.
|
|
</p>
|
|
|
|
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Stage 2: expand that schema to the output stream</span><span class="named-paragraph-number">4.2</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">asch</span><span class="plain-syntax">.</span><span class="element-syntax">negate_schema</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Produce::inv_primitive</span><span class="plain-syntax">(</span><a href="27-em.html#SP2" class="function-link"><span class="function-syntax">Emit::tree</span></a><span class="plain-syntax">(), </span><span class="identifier-syntax">NOT_BIP</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Produce::down</span><span class="plain-syntax">(</span><a href="27-em.html#SP2" class="function-link"><span class="function-syntax">Emit::tree</span></a><span class="plain-syntax">());</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> </span><a href="12-is.html#SP5" class="function-link"><span class="function-syntax">Calculus::Schemas::emit_expand_from_terms</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">asch</span><span class="plain-syntax">.</span><span class="element-syntax">schema</span><span class="plain-syntax">, &(</span><span class="identifier-syntax">asch</span><span class="plain-syntax">.</span><span class="element-syntax">pt0</span><span class="plain-syntax">), &(</span><span class="identifier-syntax">asch</span><span class="plain-syntax">.</span><span class="element-syntax">pt1</span><span class="plain-syntax">), </span><span class="identifier-syntax">with_semicolon</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">asch</span><span class="plain-syntax">.</span><span class="element-syntax">negate_schema</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Produce::up</span><span class="plain-syntax">(</span><a href="27-em.html#SP2" class="function-link"><span class="function-syntax">Emit::tree</span></a><span class="plain-syntax">());</span>
|
|
<span class="plain-syntax"> }</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="12-ca.html#SP4">§4</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP5"></a><b>§5. Constructing the schema. </b></p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">annotated_i6_schema</span><span class="plain-syntax"> </span><span class="function-syntax">Calculus::Atoms::Compile::i6_schema_of_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">Calculus::Atoms::Compile::i6_schema_of_atom</span></span>:<br/><a href="12-ca.html#SP4_1">§4.1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">i6_schema</span><span class="plain-syntax"> *</span><span class="identifier-syntax">sch</span><span class="plain-syntax">, </span><span class="reserved-syntax">pcalc_prop</span><span class="plain-syntax"> *</span><span class="identifier-syntax">pl</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">task</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">annotated_i6_schema</span><span class="plain-syntax"> </span><span class="identifier-syntax">asch</span><span class="plain-syntax">;</span>
|
|
|
|
<span class="plain-syntax"> </span><a href="12-is.html#SP3_1" class="function-link"><span class="function-syntax">Calculus::Schemas::modify</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">sch</span><span class="plain-syntax">, </span><span class="string-syntax">" "</span><span class="plain-syntax">); </span><span class="comment-syntax"> a non-NULL return in case problems occur</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">asch</span><span class="plain-syntax">.</span><span class="element-syntax">schema</span><span class="plain-syntax"> = </span><span class="identifier-syntax">sch</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">asch</span><span class="plain-syntax">.</span><span class="element-syntax">negate_schema</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">asch</span><span class="plain-syntax">.</span><span class="element-syntax">pt0</span><span class="plain-syntax"> = </span><span class="identifier-syntax">pl</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[0]; </span><span class="identifier-syntax">asch</span><span class="plain-syntax">.</span><span class="element-syntax">pt1</span><span class="plain-syntax"> = </span><span class="identifier-syntax">pl</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[1];</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">asch</span><span class="plain-syntax">.</span><span class="element-syntax">involves_action_variables</span><span class="plain-syntax"> = </span><a href="12-ca.html#SP6" class="function-link"><span class="function-syntax">Calculus::Atoms::Compile::atom_involves_action_variables</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">pl</span><span class="plain-syntax">);</span>
|
|
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">switch</span><span class="plain-syntax">(</span><span class="identifier-syntax">pl</span><span class="plain-syntax">-></span><span class="element-syntax">element</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">CALLED_ATOM:</span><span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="12-ca.html#SP5_1" class="named-paragraph-link"><span class="named-paragraph">Make an annotated schema for a CALLED atom</span><span class="named-paragraph-number">5.1</span></a></span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">KIND_ATOM:</span><span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="12-ca.html#SP5_2" class="named-paragraph-link"><span class="named-paragraph">Make an annotated schema for a KIND atom</span><span class="named-paragraph-number">5.2</span></a></span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">EVERYWHERE_ATOM:</span><span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="12-ca.html#SP5_3" class="named-paragraph-link"><span class="named-paragraph">Make an annotated schema for an EVERYWHERE atom</span><span class="named-paragraph-number">5.3</span></a></span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">NOWHERE_ATOM:</span><span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="12-ca.html#SP5_4" class="named-paragraph-link"><span class="named-paragraph">Make an annotated schema for a NOWHERE atom</span><span class="named-paragraph-number">5.4</span></a></span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">HERE_ATOM:</span><span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="12-ca.html#SP5_5" class="named-paragraph-link"><span class="named-paragraph">Make an annotated schema for a HERE atom</span><span class="named-paragraph-number">5.5</span></a></span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">PREDICATE_ATOM:</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">switch</span><span class="plain-syntax">(</span><span class="identifier-syntax">pl</span><span class="plain-syntax">-></span><span class="element-syntax">arity</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="constant-syntax">1</span><span class="plain-syntax">: </span><span class="named-paragraph-container code-font"><a href="12-ca.html#SP5_6" class="named-paragraph-link"><span class="named-paragraph">Make an annotated schema for a unary predicate</span><span class="named-paragraph-number">5.6</span></a></span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="constant-syntax">2</span><span class="plain-syntax">: </span><span class="named-paragraph-container code-font"><a href="12-ca.html#SP5_7" class="named-paragraph-link"><span class="named-paragraph">Make an annotated schema for a binary predicate</span><span class="named-paragraph-number">5.7</span></a></span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> }</span>
|
|
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">asch</span><span class="plain-syntax">.</span><span class="element-syntax">schema</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">; </span><span class="comment-syntax"> signal that the atom cannot be compiled simply</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">asch</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP5_1"></a><b>§5.1. </b>We are now able to look at the different types of atom one at a time.
|
|
</p>
|
|
|
|
<p class="commentary">CALLED atoms cannot be asserted, and to test them, we simply copy the
|
|
value into the local variable of the given name. Note then that here
|
|
the I6 <span class="extract"><span class="extract-syntax">=</span></span> (set equal) operator is being used in a condition context:
|
|
there's a good chance that the value set is non-zero (since all objects
|
|
and enumerated values are non-zero), but it isn't necessarily so —
|
|
in Inform it's legal to quantify over times and truth states, for
|
|
instance, where 0 is a legal I6 value. So we use the comma operator
|
|
to throw away the result of the assignment, and evaluate the condition
|
|
to <span class="extract"><span class="extract-syntax">true</span></span>.
|
|
</p>
|
|
|
|
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Make an annotated schema for a CALLED atom</span><span class="named-paragraph-number">5.1</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">switch</span><span class="plain-syntax">(</span><span class="identifier-syntax">task</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">TEST_ATOM_TASK:</span><span class="plain-syntax"> {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">wording</span><span class="plain-syntax"> </span><span class="identifier-syntax">W</span><span class="plain-syntax"> = </span><a href="11-ap.html#SP16" class="function-link"><span class="function-syntax">Calculus::Atoms::CALLED_get_name</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">pl</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><a href="12-is.html#SP3_1" class="function-link"><span class="function-syntax">Calculus::Schemas::modify</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">sch</span><span class="plain-syntax">, </span><span class="string-syntax">"(%L=(*1), true)"</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><a href="24-lv.html#SP30" class="function-link"><span class="function-syntax">LocalVariables::ensure_called_local</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">W</span><span class="plain-syntax">, </span><span class="identifier-syntax">pl</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">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">asch</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">default:</span><span class="plain-syntax"> </span><span class="identifier-syntax">asch</span><span class="plain-syntax">.</span><span class="element-syntax">schema</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">; </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">asch</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> }</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="12-ca.html#SP5">§5</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP5_2"></a><b>§5.2. </b>In any type-checked proposition, a <span class="extract"><span class="extract-syntax">KIND</span></span> atom can only exist where it is
|
|
always at least sometimes true. In particular, if \(K\) is a kind of value, then
|
|
the atom \(K(v)\) can only exist where \(v\) is of that kind of value, so that the
|
|
atom is always true when tested. But if \(K\) is a kind of object, then \(K(O)\)
|
|
may occur in the proposition for any object \(O\), where \(O\) need not belong
|
|
to \(K\) at all: so there is something substantive to check, which we do using
|
|
the I6 <span class="extract"><span class="extract-syntax">ofclass</span></span> operator.
|
|
</p>
|
|
|
|
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Make an annotated schema for a KIND atom</span><span class="named-paragraph-number">5.2</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">switch</span><span class="plain-syntax">(</span><span class="identifier-syntax">task</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">TEST_ATOM_TASK:</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Kinds::Compare::lt</span><span class="plain-syntax">(</span><span class="identifier-syntax">pl</span><span class="plain-syntax">-></span><span class="element-syntax">assert_kind</span><span class="plain-syntax">, </span><span class="identifier-syntax">K_object</span><span class="plain-syntax">))</span>
|
|
<span class="plain-syntax"> </span><a href="12-is.html#SP3_1" class="function-link"><span class="function-syntax">Calculus::Schemas::modify</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">sch</span><span class="plain-syntax">, </span><span class="string-syntax">"*1 ofclass %n"</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><a href="13-rsfk.html#SP3" class="function-link"><span class="function-syntax">Kinds::RunTime::I6_classname</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">pl</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">else</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">Kinds::get_construct</span><span class="plain-syntax">(</span><span class="identifier-syntax">pl</span><span class="plain-syntax">-></span><span class="element-syntax">assert_kind</span><span class="plain-syntax">) == </span><span class="identifier-syntax">CON_list_of</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">problem_count</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">Problems::quote_source</span><span class="plain-syntax">(1, </span><span class="identifier-syntax">current_sentence</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><a href="2-sq.html#SP3" class="function-link"><span class="function-syntax">Problems::quote_kind</span></a><span class="plain-syntax">(2, </span><span class="identifier-syntax">pl</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="identifier-syntax">StandardProblems::handmade_problem</span><span class="plain-syntax">(</span><a href="1-wtc.html#SP6" class="function-link"><span class="function-syntax">Task::syntax_tree</span></a><span class="plain-syntax">(), </span><span class="identifier-syntax">_p_</span><span class="plain-syntax">(</span><span class="identifier-syntax">PM_CantCheckListContents</span><span class="plain-syntax">));</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Problems::issue_problem_segment</span><span class="plain-syntax">(</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"In %1, you use a list which might or might not match a "</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"definition requiring %2. But there's no efficient way to "</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"tell during play whether the list actually contains that, "</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"without laboriously checking every entry. Because "</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"in general this would be a bad idea, this usage is "</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"not allowed."</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">Problems::issue_problem_end</span><span class="plain-syntax">();</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> </span><a href="12-is.html#SP3_1" class="function-link"><span class="function-syntax">Calculus::Schemas::modify</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">sch</span><span class="plain-syntax">, </span><span class="string-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">asch</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">NOW_ATOM_TRUE_TASK:</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">NOW_ATOM_FALSE_TASK:</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">suppress_C14CantChangeKind</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">StandardProblems::sentence_problem</span><span class="plain-syntax">(</span><a href="1-wtc.html#SP6" class="function-link"><span class="function-syntax">Task::syntax_tree</span></a><span class="plain-syntax">(), </span><span class="identifier-syntax">_p_</span><span class="plain-syntax">(</span><span class="identifier-syntax">PM_CantChangeKind</span><span class="plain-syntax">),</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"the kind of something is fixed"</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"and cannot be changed during play with a 'now'."</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">asch</span><span class="plain-syntax">.</span><span class="element-syntax">schema</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">else</span><span class="plain-syntax"> </span><a href="12-is.html#SP3_1" class="function-link"><span class="function-syntax">Calculus::Schemas::modify</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">sch</span><span class="plain-syntax">, </span><span class="string-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">asch</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> }</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="12-ca.html#SP5">§5</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP5_3"></a><b>§5.3. </b>An easy case. Note that <span class="extract"><span class="extract-syntax">FoundEverywhere</span></span> is a template routine existing
|
|
to provide a common value of the I6 <span class="extract"><span class="extract-syntax">found_in</span></span> property — common that is
|
|
to all backdrops which are currently everywhere.
|
|
</p>
|
|
|
|
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Make an annotated schema for an EVERYWHERE atom</span><span class="named-paragraph-number">5.3</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">switch</span><span class="plain-syntax">(</span><span class="identifier-syntax">task</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">TEST_ATOM_TASK:</span>
|
|
<span class="plain-syntax"> </span><a href="12-is.html#SP3_1" class="function-link"><span class="function-syntax">Calculus::Schemas::modify</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">sch</span><span class="plain-syntax">, </span><span class="string-syntax">"BackdropEverywhere(*1)"</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">asch</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">NOW_ATOM_TRUE_TASK:</span>
|
|
<span class="plain-syntax"> </span><a href="12-is.html#SP3_1" class="function-link"><span class="function-syntax">Calculus::Schemas::modify</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">sch</span><span class="plain-syntax">, </span><span class="string-syntax">"MoveObject(*1, FoundEverywhere); MoveFloatingObjects();"</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">asch</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">NOW_ATOM_FALSE_TASK:</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">StandardProblems::sentence_problem</span><span class="plain-syntax">(</span><a href="1-wtc.html#SP6" class="function-link"><span class="function-syntax">Task::syntax_tree</span></a><span class="plain-syntax">(), </span><span class="identifier-syntax">_p_</span><span class="plain-syntax">(</span><span class="identifier-syntax">PM_CantChangeEverywhere</span><span class="plain-syntax">),</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"not being 'everywhere' is not something which can be changed "</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"during play using 'now'"</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"because it's not exact enough about what needs to be done."</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">asch</span><span class="plain-syntax">.</span><span class="element-syntax">schema</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">; </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">asch</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> }</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="12-ca.html#SP5">§5</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP5_4"></a><b>§5.4. </b>And another.
|
|
</p>
|
|
|
|
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Make an annotated schema for a NOWHERE atom</span><span class="named-paragraph-number">5.4</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">switch</span><span class="plain-syntax">(</span><span class="identifier-syntax">task</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">TEST_ATOM_TASK:</span>
|
|
<span class="plain-syntax"> </span><a href="12-is.html#SP3_1" class="function-link"><span class="function-syntax">Calculus::Schemas::modify</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">sch</span><span class="plain-syntax">, </span><span class="string-syntax">"LocationOf(*1) == nothing"</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">asch</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">NOW_ATOM_TRUE_TASK:</span>
|
|
<span class="plain-syntax"> </span><a href="12-is.html#SP3_1" class="function-link"><span class="function-syntax">Calculus::Schemas::modify</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">sch</span><span class="plain-syntax">, </span><span class="string-syntax">"RemoveFromPlay(*1);"</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">asch</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">NOW_ATOM_FALSE_TASK:</span>
|
|
<span class="plain-syntax"> </span><a href="12-is.html#SP3_1" class="function-link"><span class="function-syntax">Calculus::Schemas::modify</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">sch</span><span class="plain-syntax">, </span><span class="string-syntax">"MoveObject(*1, real_location, 1, false);"</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">asch</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> }</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="12-ca.html#SP5">§5</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP5_5"></a><b>§5.5. </b>And another. (In fact, at present <span class="extract"><span class="extract-syntax">HERE</span></span> atoms are never included in
|
|
propositions to be compiled, so this code is never used.)
|
|
</p>
|
|
|
|
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Make an annotated schema for a HERE atom</span><span class="named-paragraph-number">5.5</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">switch</span><span class="plain-syntax">(</span><span class="identifier-syntax">task</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">TEST_ATOM_TASK:</span>
|
|
<span class="plain-syntax"> </span><a href="12-is.html#SP3_1" class="function-link"><span class="function-syntax">Calculus::Schemas::modify</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">sch</span><span class="plain-syntax">, </span><span class="string-syntax">"LocationOf(*1) == location"</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">asch</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">NOW_ATOM_TRUE_TASK:</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">NOW_ATOM_FALSE_TASK:</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">StandardProblems::sentence_problem</span><span class="plain-syntax">(</span><a href="1-wtc.html#SP6" class="function-link"><span class="function-syntax">Task::syntax_tree</span></a><span class="plain-syntax">(), </span><span class="identifier-syntax">_p_</span><span class="plain-syntax">(</span><span class="identifier-syntax">BelievedImpossible</span><span class="plain-syntax">),</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"being 'here' is not something which can be changed during play"</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="string-syntax">"so it cannot be brought about or cancelled out with 'now'."</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">asch</span><span class="plain-syntax">.</span><span class="element-syntax">schema</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">; </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">asch</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> }</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="12-ca.html#SP5">§5</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP5_6"></a><b>§5.6. </b>The last unary atom is an adjective, for which we hand over to the general
|
|
adjective apparatus.
|
|
</p>
|
|
|
|
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Make an annotated schema for a unary predicate</span><span class="named-paragraph-number">5.6</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">atask</span><span class="plain-syntax"> = </span><span class="constant-syntax">0</span><span class="plain-syntax">; </span><span class="comment-syntax"> redundant assignment to appease </span><span class="extract"><span class="extract-syntax">gcc -O2</span></span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">unary_predicate</span><span class="plain-syntax"> *</span><span class="identifier-syntax">tr</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RETRIEVE_POINTER_unary_predicate</span><span class="plain-syntax">(</span><span class="identifier-syntax">pl</span><span class="plain-syntax">-></span><span class="element-syntax">predicate</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">adjective</span><span class="plain-syntax"> *</span><span class="identifier-syntax">aph</span><span class="plain-syntax"> = </span><a href="7-up.html#SP4" class="function-link"><span class="function-syntax">UnaryPredicates::get_adj</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">tr</span><span class="plain-syntax">);</span>
|
|
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><a href="7-up.html#SP4" class="function-link"><span class="function-syntax">UnaryPredicates::get_parity</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">tr</span><span class="plain-syntax">) == </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">) </span><span class="identifier-syntax">asch</span><span class="plain-syntax">.</span><span class="element-syntax">negate_schema</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">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">pl</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">constant</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">pl</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">term_checked_as_kind</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">pl</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">term_checked_as_kind</span><span class="plain-syntax"> = </span><a href="14-sp.html#SP1" class="function-link"><span class="function-syntax">Specifications::to_kind</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">pl</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">constant</span><span class="plain-syntax">);</span>
|
|
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">switch</span><span class="plain-syntax">(</span><span class="identifier-syntax">task</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">TEST_ATOM_TASK:</span><span class="plain-syntax"> </span><span class="identifier-syntax">atask</span><span class="plain-syntax"> = </span><span class="constant-syntax">TEST_ADJECTIVE_TASK</span><span class="plain-syntax">; </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">NOW_ATOM_TRUE_TASK:</span><span class="plain-syntax"> </span><span class="identifier-syntax">atask</span><span class="plain-syntax"> = </span><span class="constant-syntax">NOW_ADJECTIVE_TRUE_TASK</span><span class="plain-syntax">; </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">case</span><span class="plain-syntax"> </span><span class="identifier-syntax">NOW_ATOM_FALSE_TASK:</span><span class="plain-syntax"> </span><span class="identifier-syntax">atask</span><span class="plain-syntax"> = </span><span class="constant-syntax">NOW_ADJECTIVE_FALSE_TASK</span><span class="plain-syntax">; </span><span class="reserved-syntax">break</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> }</span>
|
|
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">LOGIF</span><span class="plain-syntax">(</span><span class="identifier-syntax">PREDICATE_CALCULUS_WORKINGS</span><span class="plain-syntax">, </span><span class="string-syntax">"Unary predicate: $o, on: %u\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">pl</span><span class="plain-syntax">, </span><span class="identifier-syntax">pl</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">term_checked_as_kind</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">asch</span><span class="plain-syntax">.</span><span class="element-syntax">schema</span><span class="plain-syntax"> = </span><a href="7-am.html#SP30" class="function-link"><span class="function-syntax">Adjectives::Meanings::get_i6_schema</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">aph</span><span class="plain-syntax">, </span><span class="identifier-syntax">pl</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">term_checked_as_kind</span><span class="plain-syntax">, </span><span class="identifier-syntax">atask</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">asch</span><span class="plain-syntax">;</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="12-ca.html#SP5">§5</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP5_7"></a><b>§5.7. </b>Delegation is similarly the art of compiling a BP:
|
|
</p>
|
|
|
|
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Make an annotated schema for a binary predicate</span><span class="named-paragraph-number">5.7</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">binary_predicate</span><span class="plain-syntax"> *</span><span class="identifier-syntax">bp</span><span class="plain-syntax"> = </span><span class="identifier-syntax">RETRIEVE_POINTER_binary_predicate</span><span class="plain-syntax">(</span><span class="identifier-syntax">pl</span><span class="plain-syntax">-></span><span class="element-syntax">predicate</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">binary_predicate</span><span class="plain-syntax"> *</span><span class="identifier-syntax">bp_to_assert</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
|
|
|
|
<span class="plain-syntax"> </span><span class="named-paragraph-container code-font"><a href="12-ca.html#SP5_7_1" class="named-paragraph-link"><span class="named-paragraph">Undo any functional simplification of the relation</span><span class="named-paragraph-number">5.7.1</span></a></span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">asch</span><span class="plain-syntax">.</span><span class="element-syntax">schema</span><span class="plain-syntax"> = </span><a href="7-bp.html#SP46" class="function-link"><span class="function-syntax">BinaryPredicates::get_i6_schema</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">task</span><span class="plain-syntax">, </span><span class="identifier-syntax">bp_to_assert</span><span class="plain-syntax">, &</span><span class="identifier-syntax">asch</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">asch</span><span class="plain-syntax">;</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="12-ca.html#SP5">§5</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP5_7_1"></a><b>§5.7.1. </b>When a relation \(R(x, y)\) has been simplified to \(is(x, f_R(y))\)
|
|
or \(is(g_R(x), y)\), it can be tested but not asserted true or false;
|
|
we have to re-establish \(R(x, y)\) before we can proceed.
|
|
</p>
|
|
|
|
<p class="commentary"><span class="named-paragraph-container code-font"><span class="named-paragraph-defn">Undo any functional simplification of the relation</span><span class="named-paragraph-number">5.7.1</span></span><span class="comment-syntax"> =</span>
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> ((</span><span class="identifier-syntax">task</span><span class="plain-syntax"> != </span><span class="constant-syntax">TEST_ATOM_TASK</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">bp</span><span class="plain-syntax"> == </span><span class="identifier-syntax">R_equality</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">pl</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">function</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">bp_to_assert</span><span class="plain-syntax"> = </span><span class="identifier-syntax">pl</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">function</span><span class="plain-syntax">-></span><span class="element-syntax">bp</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">asch</span><span class="plain-syntax">.</span><span class="element-syntax">pt0</span><span class="plain-syntax"> = </span><span class="identifier-syntax">pl</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[0].</span><span class="element-syntax">function</span><span class="plain-syntax">-></span><span class="element-syntax">fn_of</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> } </span><span class="reserved-syntax">else</span><span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">pl</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">function</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">bp_to_assert</span><span class="plain-syntax"> = </span><span class="identifier-syntax">pl</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">function</span><span class="plain-syntax">-></span><span class="element-syntax">bp</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">asch</span><span class="plain-syntax">.</span><span class="element-syntax">pt1</span><span class="plain-syntax"> = </span><span class="identifier-syntax">pl</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[1].</span><span class="element-syntax">function</span><span class="plain-syntax">-></span><span class="element-syntax">fn_of</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">bp_to_assert</span><span class="plain-syntax"> == </span><span class="identifier-syntax">R_equality</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"contraction of predicate applied to equality"</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">bp_to_assert</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="identifier-syntax">bp_to_assert</span><span class="plain-syntax"> = </span><span class="identifier-syntax">bp</span><span class="plain-syntax">;</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>This code is used in <a href="12-ca.html#SP5_7">§5.7</a>.</li></ul>
|
|
<p class="commentary firstcommentary"><a id="SP6"></a><b>§6. </b></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">Calculus::Atoms::Compile::atom_involves_action_variables</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">Calculus::Atoms::Compile::atom_involves_action_variables</span></span>:<br/><a href="12-ca.html#SP5">§5</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">pcalc_prop</span><span class="plain-syntax"> *</span><span class="identifier-syntax">pl</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> #</span><span class="identifier-syntax">ifdef</span><span class="plain-syntax"> </span><span class="identifier-syntax">IF_MODULE</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">for</span><span class="plain-syntax"> (</span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">i</span><span class="plain-syntax">=0; </span><span class="identifier-syntax">i</span><span class="function-syntax"><pl-></span><span class="element-syntax">arity</span><span class="plain-syntax">; </span><span class="identifier-syntax">i</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">operand</span><span class="plain-syntax"> = </span><a href="11-tr.html#SP6" class="function-link"><span class="function-syntax">Calculus::Terms::constant_underlying</span></a><span class="plain-syntax">(&(</span><span class="identifier-syntax">pl</span><span class="plain-syntax">-></span><span class="element-syntax">terms</span><span class="plain-syntax">[</span><span class="identifier-syntax">i</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">PL::Actions::Patterns::is_an_action_variable</span><span class="plain-syntax">(</span><span class="identifier-syntax">operand</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="identifier-syntax">endif</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="SP7"></a><b>§7. An unannotated one. </b></p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">annotated_i6_schema</span><span class="plain-syntax"> </span><span class="function-syntax">Calculus::Atoms::Compile::blank_asch</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">Calculus::Atoms::Compile::blank_asch</span></span>:<br/>Relations - <a href="7-rlt.html#SP9_2_2">§9.2.2</a>, <a href="7-rlt.html#SP9_2_3">§9.2.3</a>, <a href="7-rlt.html#SP9_2_4">§9.2.4</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">void</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">annotated_i6_schema</span><span class="plain-syntax"> </span><span class="identifier-syntax">asch</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">asch</span><span class="plain-syntax">.</span><span class="element-syntax">schema</span><span class="plain-syntax"> = </span><a href="12-is.html#SP3" class="function-link"><span class="function-syntax">Calculus::Schemas::new</span></a><span class="plain-syntax">(</span><span class="string-syntax">" "</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">asch</span><span class="plain-syntax">.</span><span class="element-syntax">negate_schema</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">asch</span><span class="plain-syntax">.</span><span class="element-syntax">pt0</span><span class="plain-syntax"> = </span><a href="11-tr.html#SP3" class="function-link"><span class="function-syntax">Calculus::Terms::new_variable</span></a><span class="plain-syntax">(0);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">asch</span><span class="plain-syntax">.</span><span class="element-syntax">pt1</span><span class="plain-syntax"> = </span><a href="11-tr.html#SP3" class="function-link"><span class="function-syntax">Calculus::Terms::new_variable</span></a><span class="plain-syntax">(0);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">asch</span><span class="plain-syntax">.</span><span class="element-syntax">involves_action_variables</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">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">asch</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<nav role="progress"><div class="progresscontainer">
|
|
<ul class="progressbar"><li class="progressprev"><a href="12-is.html">❮</a></li><li class="progresschapter"><a href="P-wtmd.html">P</a></li><li class="progresschapter"><a href="1-cm.html">1</a></li><li class="progresschapter"><a href="2-up.html">2</a></li><li class="progresschapter"><a href="3-bv.html">3</a></li><li class="progresschapter"><a href="4-dlr.html">4</a></li><li class="progresschapter"><a href="5-rpt.html">5</a></li><li class="progresschapter"><a href="6-lp.html">6</a></li><li class="progresschapter"><a href="7-up.html">7</a></li><li class="progresschapter"><a href="8-ptu.html">8</a></li><li class="progresschapter"><a href="9-ef.html">9</a></li><li class="progresschapter"><a href="10-its.html">10</a></li><li class="progresschapter"><a href="11-itpc.html">11</a></li><li class="progresscurrentchapter">12</li><li class="progresssection"><a href="12-ter.html">ter</a></li><li class="progresssection"><a href="12-qr.html">qr</a></li><li class="progresssection"><a href="12-ap.html">ap</a></li><li class="progresssection"><a href="12-is.html">is</a></li><li class="progresscurrent">ca</li><li class="progresssection"><a href="12-dtd.html">dtd</a></li><li class="progresssection"><a href="12-cad.html">cad</a></li><li class="progresssection"><a href="12-cdp.html">cdp</a></li><li class="progresschapter"><a href="13-kak.html">13</a></li><li class="progresschapter"><a href="14-sp.html">14</a></li><li class="progresschapter"><a href="15-pr.html">15</a></li><li class="progresschapter"><a href="16-is.html">16</a></li><li class="progresschapter"><a href="17-tl.html">17</a></li><li class="progresschapter"><a href="18-lc.html">18</a></li><li class="progresschapter"><a href="19-tc.html">19</a></li><li class="progresschapter"><a href="20-eq.html">20</a></li><li class="progresschapter"><a href="21-rl.html">21</a></li><li class="progresschapter"><a href="22-itp.html">22</a></li><li class="progresschapter"><a href="23-ad.html">23</a></li><li class="progresschapter"><a href="24-lv.html">24</a></li><li class="progresschapter"><a href="25-in.html">25</a></li><li class="progresschapter"><a href="26-fc.html">26</a></li><li class="progresschapter"><a href="27-hr.html">27</a></li><li class="progressnext"><a href="12-dtd.html">❯</a></li></ul></div>
|
|
</nav><!--End of weave-->
|
|
|
|
</main>
|
|
</body>
|
|
</html>
|
|
|