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<!--Weave of 'Inter Constructs' 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="../intern.html">Inter Modules</a></li><li><a href="index.html">bytecode</a></li><li><a href="index.html#3">Chapter 3: Their Instructions</a></li><li><b>Inter Constructs</b></li></ul></div>
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<p class="purpose">There are around two dozen constructs in textual Inter source code, with each instruction in bytecode being a usage of one of them.</p>
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<p class="commentary firstcommentary"><a id="SP1" class="paragraph-anchor"></a><b>§1. </b>Each different construct is represented by an instance of the following:
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</p>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="reserved-syntax">typedef</span><span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="reserved-syntax">inter_construct</span><span class="plain-syntax"> {</span>
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<span class="plain-syntax"> </span><span class="constant-syntax">inter_ti</span><span class="plain-syntax"> </span><span class="identifier-syntax">construct_ID</span><span class="plain-syntax">; </span><span class="comment-syntax"> used to identify this in bytecode</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">construct_name</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">wchar_t</span><span class="plain-syntax"> </span><span class="identifier-syntax">recognition_regexp</span><span class="plain-syntax">[</span><span class="constant-syntax">MAX_RECOGNITION_REGEXP_LENGTH</span><span class="plain-syntax">];</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">syntax</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">min_level</span><span class="plain-syntax">; </span><span class="comment-syntax"> min node tree depth within its package</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">max_level</span><span class="plain-syntax">; </span><span class="comment-syntax"> max node tree depth within its package</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">usage_permissions</span><span class="plain-syntax">; </span><span class="comment-syntax"> a bitmap of the </span><span class="extract"><span class="extract-syntax">*_ICUP</span></span><span class="comment-syntax"> values</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">min_extent</span><span class="plain-syntax">; </span><span class="comment-syntax"> min number of words in the frame for this instruction</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">max_extent</span><span class="plain-syntax">; </span><span class="comment-syntax"> max number of words in the frame for this instruction</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">symbol_defn_field</span><span class="plain-syntax">; </span><span class="comment-syntax"> if this instruction declares a symbol, -1 otherwise</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">TID_field</span><span class="plain-syntax">; </span><span class="comment-syntax"> if this instruction declares a symbol with a type, -1 otherwise</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">struct</span><span class="plain-syntax"> </span><span class="identifier-syntax">method_set</span><span class="plain-syntax"> *</span><span class="identifier-syntax">methods</span><span class="plain-syntax">; </span><span class="comment-syntax"> what it does is entirely specified by these</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">CLASS_DEFINITION</span>
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<span class="plain-syntax">} </span><span class="reserved-syntax">inter_construct</span><span class="plain-syntax">;</span>
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<span class="reserved-syntax">inter_construct</span><span class="plain-syntax"> *</span><span class="function-syntax">InterInstruction::create_construct</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">InterInstruction::create_construct</span></span>:<br/><a href="3-ic.html#SP9">§9</a><br/>The Comment Construct - <a href="4-tcc.html#SP1">§1</a><br/>The Constant Construct - <a href="4-tcc2.html#SP1">§1</a><br/>The Insert Construct - <a href="4-tic.html#SP1">§1</a><br/>The Instance Construct - <a href="4-tic2.html#SP1">§1</a><br/>The Nop Construct - <a href="4-tnc.html#SP1">§1</a><br/>The Origin Construct - <a href="4-toc.html#SP1">§1</a><br/>The Package Construct - <a href="4-tpc.html#SP1">§1</a><br/>The PackageType Construct - <a href="4-tpc2.html#SP1">§1</a><br/>The Permission Construct - <a href="4-tpc3.html#SP1">§1</a><br/>The Pragma Construct - <a href="4-tpc4.html#SP1">§1</a><br/>The Primitive Construct - <a href="4-tpc5.html#SP1">§1</a><br/>The Property Construct - <a href="4-tpc6.html#SP1">§1</a><br/>The PropertyValue Construct - <a href="4-tpc7.html#SP1">§1</a><br/>The Provenance Construct - <a href="4-tpc8.html#SP1">§1</a><br/>The Typename Construct - <a href="4-ttc.html#SP1">§1</a><br/>The Variable Construct - <a href="4-tvc.html#SP1">§1</a><br/>The Assembly Construct - <a href="5-tac.html#SP1">§1</a><br/>The Cast Construct - <a href="5-tcc.html#SP1">§1</a><br/>The Code Construct - <a href="5-tcc2.html#SP1">§1</a><br/>The Evaluation Construct - <a href="5-tec.html#SP1">§1</a><br/>The Inv Construct - <a href="5-tic.html#SP1">§1</a><br/>The Lab Construct - <a href="5-tlc.html#SP1">§1</a><br/>The Label Construct - <a href="5-tlc2.html#SP1">§1</a><br/>The Local Construct - <a href="5-tlc3.html#SP1">§1</a><br/>The Ref Construct - <a href="5-trc.html#SP1">§1</a><br/>The Reference Construct - <a href="5-trc2.html#SP1">§1</a><br/>The Splat Construct - <a href="5-tsc.html#SP1">§1</a><br/>The Val Construct - <a href="5-tvc.html#SP1">§1</a><br/>The Plug Construct - <a href="6-tpc.html#SP1">§1</a><br/>The Socket Construct - <a href="6-tsc.html#SP1">§1</a><br/>The Version Construct - <a href="6-tvc.html#SP1">§1</a></span></button><span class="plain-syntax">(</span><span class="constant-syntax">inter_ti</span><span class="plain-syntax"> </span><span class="identifier-syntax">ID</span><span class="plain-syntax">, </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">name</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">inter_construct</span><span class="plain-syntax"> *</span><span class="identifier-syntax">IC</span><span class="plain-syntax"> = </span><span class="identifier-syntax">CREATE</span><span class="plain-syntax">(</span><span class="reserved-syntax">inter_construct</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">IC</span><span class="plain-syntax">-></span><span class="element-syntax">construct_ID</span><span class="plain-syntax"> = </span><span class="identifier-syntax">ID</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">IC</span><span class="plain-syntax">-></span><span class="element-syntax">construct_name</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Str::duplicate</span><span class="plain-syntax">(</span><span class="identifier-syntax">name</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">IC</span><span class="plain-syntax">-></span><span class="element-syntax">recognition_regexp</span><span class="plain-syntax">[0] = </span><span class="constant-syntax">0</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">IC</span><span class="plain-syntax">-></span><span class="element-syntax">min_level</span><span class="plain-syntax"> = </span><span class="constant-syntax">0</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">IC</span><span class="plain-syntax">-></span><span class="element-syntax">max_level</span><span class="plain-syntax"> = </span><span class="constant-syntax">0</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">IC</span><span class="plain-syntax">-></span><span class="element-syntax">usage_permissions</span><span class="plain-syntax"> = </span><span class="constant-syntax">INSIDE_PLAIN_PACKAGE_ICUP</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><a href="3-ic.html#SP4" class="function-link"><span class="function-syntax">InterInstruction::data_extent_at_least</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">IC</span><span class="plain-syntax">, </span><span class="constant-syntax">0</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">IC</span><span class="plain-syntax">-></span><span class="element-syntax">symbol_defn_field</span><span class="plain-syntax"> = -1;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">IC</span><span class="plain-syntax">-></span><span class="element-syntax">TID_field</span><span class="plain-syntax"> = -1;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">IC</span><span class="plain-syntax">-></span><span class="element-syntax">methods</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Methods::new_set</span><span class="plain-syntax">();</span>
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<span class="plain-syntax"> </span><a href="3-ic.html#SP13" class="function-link"><span class="function-syntax">InterInstruction::set_construct_for_ID</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">ID</span><span class="plain-syntax">, </span><span class="identifier-syntax">IC</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">IC</span><span class="plain-syntax">;</span>
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<span class="plain-syntax">}</span>
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</pre>
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<ul class="endnotetexts"><li>The structure inter_construct is accessed in 3/vi, 3/idt and here.</li></ul>
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<p class="commentary firstcommentary"><a id="SP2" class="paragraph-anchor"></a><b>§2. </b>Numerous constructs are for instructions which define symbols, and sometimes
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those have a data type attached. If so, the symbol ID will live in one field
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of an instruction made with that construct, and the data type (in TID form —
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see <a href="3-idt.html" class="internal">Inter Data Types</a>) will live in another.
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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">InterInstruction::defines_symbol_in_fields</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">InterInstruction::defines_symbol_in_fields</span></span>:<br/>The Constant Construct - <a href="4-tcc2.html#SP1">§1</a><br/>The Instance Construct - <a href="4-tic2.html#SP1">§1</a><br/>The Origin Construct - <a href="4-toc.html#SP1">§1</a><br/>The Package Construct - <a href="4-tpc.html#SP1">§1</a><br/>The PackageType Construct - <a href="4-tpc2.html#SP1">§1</a><br/>The Primitive Construct - <a href="4-tpc5.html#SP1">§1</a><br/>The Property Construct - <a href="4-tpc6.html#SP1">§1</a><br/>The Typename Construct - <a href="4-ttc.html#SP1">§1</a><br/>The Variable Construct - <a href="4-tvc.html#SP1">§1</a><br/>The Label Construct - <a href="5-tlc2.html#SP1">§1</a><br/>The Local Construct - <a href="5-tlc3.html#SP1">§1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inter_construct</span><span class="plain-syntax"> *</span><span class="identifier-syntax">IC</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">s</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">t</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">IC</span><span class="plain-syntax">-></span><span class="element-syntax">symbol_defn_field</span><span class="plain-syntax"> = </span><span class="identifier-syntax">s</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">IC</span><span class="plain-syntax">-></span><span class="element-syntax">TID_field</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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</pre>
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<p class="commentary firstcommentary"><a id="SP3" class="paragraph-anchor"></a><b>§3. </b>Several fields specify restrictions on where, in an Inter tree, instructions
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using this construct can appear. <span class="extract"><span class="extract-syntax">min_level</span></span> to <span class="extract"><span class="extract-syntax">max_level</span></span>, inclusive, give
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the range of hierarchical levels within their packages which such instructions
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can occur at.
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</p>
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<p class="commentary">By default, note that a construct can only be used at the top level of a package —
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min and max both equal 0; and by default, it has no usage permissions at all.
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Those must be explicitly granted when a new construct is created.
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</p>
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<pre class="definitions code-font"><span class="definition-keyword">define</span> <span class="constant-syntax">INFINITELY_DEEP</span><span class="plain-syntax"> </span><span class="constant-syntax">100000000</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">OUTSIDE_OF_PACKAGES_ICUP</span><span class="plain-syntax"> </span><span class="constant-syntax">1</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">INSIDE_PLAIN_PACKAGE_ICUP</span><span class="plain-syntax"> </span><span class="constant-syntax">2</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">INSIDE_CODE_PACKAGE_ICUP</span><span class="plain-syntax"> </span><span class="constant-syntax">4</span>
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<span class="definition-keyword">define</span> <span class="constant-syntax">CAN_HAVE_CHILDREN_ICUP</span><span class="plain-syntax"> </span><span class="constant-syntax">8</span>
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</pre>
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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">InterInstruction::permit</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">InterInstruction::permit</span></span>:<br/>The Comment Construct - <a href="4-tcc.html#SP1">§1</a><br/>The Constant Construct - <a href="4-tcc2.html#SP1">§1</a><br/>The Insert Construct - <a href="4-tic.html#SP1">§1</a><br/>The Instance Construct - <a href="4-tic2.html#SP1">§1</a><br/>The Nop Construct - <a href="4-tnc.html#SP1">§1</a><br/>The Origin Construct - <a href="4-toc.html#SP1">§1</a><br/>The Package Construct - <a href="4-tpc.html#SP1">§1</a><br/>The PackageType Construct - <a href="4-tpc2.html#SP1">§1</a><br/>The Permission Construct - <a href="4-tpc3.html#SP1">§1</a><br/>The Pragma Construct - <a href="4-tpc4.html#SP1">§1</a><br/>The Primitive Construct - <a href="4-tpc5.html#SP1">§1</a><br/>The Property Construct - <a href="4-tpc6.html#SP1">§1</a><br/>The PropertyValue Construct - <a href="4-tpc7.html#SP1">§1</a><br/>The Provenance Construct - <a href="4-tpc8.html#SP1">§1</a><br/>The Typename Construct - <a href="4-ttc.html#SP1">§1</a><br/>The Variable Construct - <a href="4-tvc.html#SP1">§1</a><br/>The Assembly Construct - <a href="5-tac.html#SP1">§1</a><br/>The Cast Construct - <a href="5-tcc.html#SP1">§1</a><br/>The Code Construct - <a href="5-tcc2.html#SP1">§1</a><br/>The Evaluation Construct - <a href="5-tec.html#SP1">§1</a><br/>The Inv Construct - <a href="5-tic.html#SP1">§1</a><br/>The Lab Construct - <a href="5-tlc.html#SP1">§1</a><br/>The Label Construct - <a href="5-tlc2.html#SP1">§1</a><br/>The Local Construct - <a href="5-tlc3.html#SP1">§1</a><br/>The Ref Construct - <a href="5-trc.html#SP1">§1</a><br/>The Reference Construct - <a href="5-trc2.html#SP1">§1</a><br/>The Splat Construct - <a href="5-tsc.html#SP1">§1</a><br/>The Val Construct - <a href="5-tvc.html#SP1">§1</a><br/>The Plug Construct - <a href="6-tpc.html#SP1">§1</a><br/>The Socket Construct - <a href="6-tsc.html#SP1">§1</a><br/>The Version Construct - <a href="6-tvc.html#SP1">§1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inter_construct</span><span class="plain-syntax"> *</span><span class="identifier-syntax">IC</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">usage</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">IC</span><span class="plain-syntax">-></span><span class="element-syntax">usage_permissions</span><span class="plain-syntax"> |= </span><span class="identifier-syntax">usage</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">InterInstruction::allow_in_depth_range</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">InterInstruction::allow_in_depth_range</span></span>:<br/><a href="3-ic.html#SP9">§9</a><br/>The Comment Construct - <a href="4-tcc.html#SP1">§1</a><br/>The Nop Construct - <a href="4-tnc.html#SP1">§1</a><br/>The Provenance Construct - <a href="4-tpc8.html#SP1">§1</a><br/>The Assembly Construct - <a href="5-tac.html#SP1">§1</a><br/>The Cast Construct - <a href="5-tcc.html#SP1">§1</a><br/>The Code Construct - <a href="5-tcc2.html#SP1">§1</a><br/>The Evaluation Construct - <a href="5-tec.html#SP1">§1</a><br/>The Inv Construct - <a href="5-tic.html#SP1">§1</a><br/>The Lab Construct - <a href="5-tlc.html#SP1">§1</a><br/>The Label Construct - <a href="5-tlc2.html#SP1">§1</a><br/>The Ref Construct - <a href="5-trc.html#SP1">§1</a><br/>The Reference Construct - <a href="5-trc2.html#SP1">§1</a><br/>The Splat Construct - <a href="5-tsc.html#SP1">§1</a><br/>The Val Construct - <a href="5-tvc.html#SP1">§1</a><br/>The Plug Construct - <a href="6-tpc.html#SP1">§1</a><br/>The Socket Construct - <a href="6-tsc.html#SP1">§1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inter_construct</span><span class="plain-syntax"> *</span><span class="identifier-syntax">IC</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">l1</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">l2</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">IC</span><span class="plain-syntax">-></span><span class="element-syntax">min_level</span><span class="plain-syntax"> = </span><span class="identifier-syntax">l1</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">IC</span><span class="plain-syntax">-></span><span class="element-syntax">max_level</span><span class="plain-syntax"> = </span><span class="identifier-syntax">l2</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP4" class="paragraph-anchor"></a><b>§4. </b>The instruction can be constrained to have a given length, in terms of the
|
|
number of words of bytecode it occupies:
|
|
</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">InterInstruction::data_extent_always</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">InterInstruction::data_extent_always</span></span>:<br/>The Comment Construct - <a href="4-tcc.html#SP1">§1</a><br/>The Insert Construct - <a href="4-tic.html#SP1">§1</a><br/>The Instance Construct - <a href="4-tic2.html#SP1">§1</a><br/>The Nop Construct - <a href="4-tnc.html#SP1">§1</a><br/>The Package Construct - <a href="4-tpc.html#SP1">§1</a><br/>The PackageType Construct - <a href="4-tpc2.html#SP1">§1</a><br/>The Permission Construct - <a href="4-tpc3.html#SP1">§1</a><br/>The Pragma Construct - <a href="4-tpc4.html#SP1">§1</a><br/>The Property Construct - <a href="4-tpc6.html#SP1">§1</a><br/>The PropertyValue Construct - <a href="4-tpc7.html#SP1">§1</a><br/>The Provenance Construct - <a href="4-tpc8.html#SP1">§1</a><br/>The Variable Construct - <a href="4-tvc.html#SP1">§1</a><br/>The Assembly Construct - <a href="5-tac.html#SP1">§1</a><br/>The Cast Construct - <a href="5-tcc.html#SP1">§1</a><br/>The Code Construct - <a href="5-tcc2.html#SP1">§1</a><br/>The Evaluation Construct - <a href="5-tec.html#SP1">§1</a><br/>The Inv Construct - <a href="5-tic.html#SP1">§1</a><br/>The Lab Construct - <a href="5-tlc.html#SP1">§1</a><br/>The Label Construct - <a href="5-tlc2.html#SP1">§1</a><br/>The Local Construct - <a href="5-tlc3.html#SP1">§1</a><br/>The Ref Construct - <a href="5-trc.html#SP1">§1</a><br/>The Reference Construct - <a href="5-trc2.html#SP1">§1</a><br/>The Splat Construct - <a href="5-tsc.html#SP1">§1</a><br/>The Val Construct - <a href="5-tvc.html#SP1">§1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inter_construct</span><span class="plain-syntax"> *</span><span class="identifier-syntax">IC</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">l</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">IC</span><span class="plain-syntax">-></span><span class="element-syntax">min_extent</span><span class="plain-syntax"> = </span><span class="identifier-syntax">l</span><span class="plain-syntax"> + </span><span class="constant-syntax">DATA_IFLD</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">IC</span><span class="plain-syntax">-></span><span class="element-syntax">max_extent</span><span class="plain-syntax"> = </span><span class="identifier-syntax">l</span><span class="plain-syntax"> + </span><span class="constant-syntax">DATA_IFLD</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">InterInstruction::data_extent_at_least</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">InterInstruction::data_extent_at_least</span></span>:<br/><a href="3-ic.html#SP1">§1</a><br/>The Constant Construct - <a href="4-tcc2.html#SP1">§1</a><br/>The Origin Construct - <a href="4-toc.html#SP1">§1</a><br/>The Primitive Construct - <a href="4-tpc5.html#SP1">§1</a><br/>The Typename Construct - <a href="4-ttc.html#SP1">§1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inter_construct</span><span class="plain-syntax"> *</span><span class="identifier-syntax">IC</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">l</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">IC</span><span class="plain-syntax">-></span><span class="element-syntax">min_extent</span><span class="plain-syntax"> = </span><span class="identifier-syntax">l</span><span class="plain-syntax"> + </span><span class="constant-syntax">DATA_IFLD</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">IC</span><span class="plain-syntax">-></span><span class="element-syntax">max_extent</span><span class="plain-syntax"> = </span><span class="constant-syntax">0x7fffffff</span><span class="plain-syntax">; </span><span class="comment-syntax"> i.e., unlimited</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP5" class="paragraph-anchor"></a><b>§5. </b>So here is the code to police those restrictions. First, for a node already
|
|
in position:
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">inter_error_message</span><span class="plain-syntax"> *</span><span class="function-syntax">InterInstruction::check_permissions</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">InterInstruction::check_permissions</span></span>:<br/><a href="3-ic.html#SP6">§6</a>, <a href="3-ic.html#SP7">§7</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inter_construct</span><span class="plain-syntax"> *</span><span class="identifier-syntax">IC</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">inter_package</span><span class="plain-syntax"> *</span><span class="identifier-syntax">pack</span><span class="plain-syntax">, </span><span class="reserved-syntax">inter_error_location</span><span class="plain-syntax"> *</span><span class="identifier-syntax">eloc</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">need</span><span class="plain-syntax"> = </span><span class="constant-syntax">INSIDE_PLAIN_PACKAGE_ICUP</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">pack</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) </span><span class="identifier-syntax">need</span><span class="plain-syntax"> = </span><span class="constant-syntax">OUTSIDE_OF_PACKAGES_ICUP</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><a href="2-pck.html#SP16" class="function-link"><span class="function-syntax">InterPackage::is_a_function_body</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">pack</span><span class="plain-syntax">)) </span><span class="identifier-syntax">need</span><span class="plain-syntax"> = </span><span class="constant-syntax">INSIDE_CODE_PACKAGE_ICUP</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">IC</span><span class="plain-syntax">-></span><span class="element-syntax">usage_permissions</span><span class="plain-syntax"> & </span><span class="identifier-syntax">need</span><span class="plain-syntax">) != </span><span class="identifier-syntax">need</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">M</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Str::new</span><span class="plain-syntax">();</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">M</span><span class="plain-syntax">, </span><span class="string-syntax">"construct '%S' cannot be used "</span><span class="plain-syntax">, </span><span class="identifier-syntax">IC</span><span class="plain-syntax">-></span><span class="element-syntax">construct_name</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">need</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">OUTSIDE_OF_PACKAGES_ICUP:</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">M</span><span class="plain-syntax">, </span><span class="string-syntax">"outside packages"</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">INSIDE_PLAIN_PACKAGE_ICUP:</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">M</span><span class="plain-syntax">, </span><span class="string-syntax">"inside non-code package '%S'"</span><span class="plain-syntax">, </span><a href="2-pck.html#SP7" class="function-link"><span class="function-syntax">InterPackage::name</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">pack</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">INSIDE_CODE_PACKAGE_ICUP:</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">M</span><span class="plain-syntax">, </span><span class="string-syntax">"inside code package '%S'"</span><span class="plain-syntax">, </span><a href="2-pck.html#SP7" class="function-link"><span class="function-syntax">InterPackage::name</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">pack</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="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="3-ie.html#SP4" class="function-link"><span class="function-syntax">InterErrors::plain</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">M</span><span class="plain-syntax">, </span><span class="identifier-syntax">eloc</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">NULL</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">InterInstruction::allows</span><span class="plain-syntax">(</span><span class="reserved-syntax">inter_construct</span><span class="plain-syntax"> *</span><span class="identifier-syntax">IC</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">icup</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">IC</span><span class="plain-syntax">-></span><span class="element-syntax">usage_permissions</span><span class="plain-syntax"> & </span><span class="identifier-syntax">icup</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">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="SP6" class="paragraph-anchor"></a><b>§6. </b>Second, for a proposed use of node not yet in position — this is used when
|
|
reading textual inter, hence the message about indentation:
|
|
</p>
|
|
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">inter_error_message</span><span class="plain-syntax"> *</span><span class="function-syntax">InterInstruction::check_level_in_package</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">InterInstruction::check_level_in_package</span></span>:<br/><a href="3-ic.html#SP21">§21</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inter_bookmark</span><span class="plain-syntax"> *</span><span class="identifier-syntax">IBM</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">inter_construct</span><span class="plain-syntax"> *</span><span class="identifier-syntax">proposed</span><span class="plain-syntax">, </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">level</span><span class="plain-syntax">, </span><span class="reserved-syntax">inter_error_location</span><span class="plain-syntax"> *</span><span class="identifier-syntax">eloc</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">inter_package</span><span class="plain-syntax"> *</span><span class="identifier-syntax">pack</span><span class="plain-syntax"> = </span><a href="2-bkm.html#SP6" class="function-link"><span class="function-syntax">InterBookmark::package</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">IBM</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">actual</span><span class="plain-syntax"> = </span><span class="identifier-syntax">level</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">pack</span><span class="plain-syntax">) && (</span><a href="2-pck.html#SP15" class="function-link"><span class="function-syntax">InterPackage::is_a_root_package</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">pack</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">actual</span><span class="plain-syntax"> = </span><span class="identifier-syntax">level</span><span class="plain-syntax"> - </span><a href="2-bkm.html#SP7" class="function-link"><span class="function-syntax">InterBookmark::baseline</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">IBM</span><span class="plain-syntax">) - </span><span class="constant-syntax">1</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">actual</span><span class="plain-syntax"> < </span><span class="constant-syntax">0</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="3-ie.html#SP4" class="function-link"><span class="function-syntax">InterErrors::plain</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="string-syntax">"impossible level"</span><span class="plain-syntax">, </span><span class="identifier-syntax">eloc</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">actual</span><span class="plain-syntax"> < </span><span class="identifier-syntax">proposed</span><span class="plain-syntax">-></span><span class="element-syntax">min_level</span><span class="plain-syntax">) || (</span><span class="identifier-syntax">actual</span><span class="plain-syntax"> > </span><span class="identifier-syntax">proposed</span><span class="plain-syntax">-></span><span class="element-syntax">max_level</span><span class="plain-syntax">))</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="3-ie.html#SP4" class="function-link"><span class="function-syntax">InterErrors::plain</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="string-syntax">"indentation error"</span><span class="plain-syntax">, </span><span class="identifier-syntax">eloc</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="3-ic.html#SP5" class="function-link"><span class="function-syntax">InterInstruction::check_permissions</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">proposed</span><span class="plain-syntax">, </span><span class="identifier-syntax">pack</span><span class="plain-syntax">, </span><span class="identifier-syntax">eloc</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>A much more formidable check. This traverses an entire tree, and verifies
|
|
that every construct is legally used:
|
|
</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">tree_lint_state</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">inter_package</span><span class="plain-syntax"> *</span><span class="identifier-syntax">package</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="constant-syntax">inter_ti</span><span class="plain-syntax"> </span><span class="identifier-syntax">package_level</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">} </span><span class="reserved-syntax">tree_lint_state</span><span class="plain-syntax">;</span>
|
|
|
|
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">InterInstruction::tree_lint</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">InterInstruction::tree_lint</span></span>:<br/>Inter in Binary Files - <a href="3-iibf.html#SP10">§10</a><br/>Inter in Text Files - <a href="3-iitf.html#SP1">§1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inter_tree</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">tree_lint_state</span><span class="plain-syntax"> </span><span class="identifier-syntax">tls</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">tls</span><span class="plain-syntax">.</span><span class="element-syntax">package</span><span class="plain-syntax"> = </span><span class="identifier-syntax">I</span><span class="plain-syntax">-></span><span class="element-syntax">root_package</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">tls</span><span class="plain-syntax">.</span><span class="element-syntax">package_level</span><span class="plain-syntax"> = </span><span class="constant-syntax">0</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><a href="3-ic.html#SP7" class="function-link"><span class="function-syntax">InterInstruction::tree_lint_r</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="plain-syntax">-></span><span class="element-syntax">root_node</span><span class="plain-syntax">, &</span><span class="identifier-syntax">tls</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">InterInstruction::tree_lint_r</span><span class="plain-syntax">(</span><span class="reserved-syntax">inter_tree</span><span class="plain-syntax"> *</span><span class="identifier-syntax">I</span><span class="plain-syntax">, </span><span class="reserved-syntax">inter_tree_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="reserved-syntax">tree_lint_state</span><span class="plain-syntax"> *</span><span class="identifier-syntax">tls</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">LOOP_THROUGH_INTER_CHILDREN</span><span class="plain-syntax">(</span><span class="identifier-syntax">C</span><span class="plain-syntax">, </span><span class="identifier-syntax">P</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><a href="2-in.html#SP6" class="function-link"><span class="function-syntax">Inode::get_package</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">C</span><span class="plain-syntax">) != </span><span class="identifier-syntax">tls</span><span class="plain-syntax">-></span><span class="element-syntax">package</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">STDERR</span><span class="plain-syntax">, </span><span class="string-syntax">"Node gives package as "</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><a href="2-pck.html#SP19" class="function-link"><span class="function-syntax">InterPackage::write_URL</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">STDERR</span><span class="plain-syntax">, </span><a href="2-in.html#SP6" class="function-link"><span class="function-syntax">Inode::get_package</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">C</span><span class="plain-syntax">));</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">STDERR</span><span class="plain-syntax">, </span><span class="string-syntax">" but it is actually in "</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><a href="2-pck.html#SP19" class="function-link"><span class="function-syntax">InterPackage::write_URL</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">STDERR</span><span class="plain-syntax">, </span><span class="identifier-syntax">tls</span><span class="plain-syntax">-></span><span class="element-syntax">package</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">STDERR</span><span class="plain-syntax">, </span><span class="string-syntax">"\n"</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"node in wrong package"</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">inter_construct</span><span class="plain-syntax"> *</span><span class="identifier-syntax">IC</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">inter_error_message</span><span class="plain-syntax"> *</span><span class="identifier-syntax">E</span><span class="plain-syntax"> = </span><a href="3-ic.html#SP14" class="function-link"><span class="function-syntax">InterInstruction::get_construct</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">C</span><span class="plain-syntax">, &</span><span class="identifier-syntax">IC</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">E</span><span class="plain-syntax">) </span><a href="3-ie.html#SP5" class="function-link"><span class="function-syntax">InterErrors::issue</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">E</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">IC</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">inter_error_location</span><span class="plain-syntax"> *</span><span class="identifier-syntax">eloc</span><span class="plain-syntax"> = </span><a href="2-in.html#SP9" class="function-link"><span class="function-syntax">Inode::get_error_location</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">C</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">E</span><span class="plain-syntax"> = </span><a href="3-ic.html#SP5" class="function-link"><span class="function-syntax">InterInstruction::check_permissions</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">IC</span><span class="plain-syntax">, </span><span class="identifier-syntax">tls</span><span class="plain-syntax">-></span><span class="element-syntax">package</span><span class="plain-syntax">, </span><span class="identifier-syntax">eloc</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">E</span><span class="plain-syntax">) </span><a href="3-ie.html#SP5" class="function-link"><span class="function-syntax">InterErrors::issue</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">E</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">E</span><span class="plain-syntax"> = </span><a href="3-ic.html#SP17" class="function-link"><span class="function-syntax">InterInstruction::verify_children</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">C</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">E</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><a href="3-ie.html#SP5" class="function-link"><span class="function-syntax">InterErrors::issue</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">E</span><span class="plain-syntax">);</span>
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|
<span class="plain-syntax"> </span><a href="3-ie.html#SP6" class="function-link"><span class="function-syntax">InterErrors::backtrace</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">STDERR</span><span class="plain-syntax">, </span><span class="identifier-syntax">C</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="constant-syntax">inter_ti</span><span class="plain-syntax"> </span><span class="identifier-syntax">level</span><span class="plain-syntax"> = (</span><span class="constant-syntax">inter_ti</span><span class="plain-syntax">) </span><a href="2-in.html#SP13" class="function-link"><span class="function-syntax">Inode::get_level</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">C</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="constant-syntax">inter_ti</span><span class="plain-syntax"> </span><span class="identifier-syntax">level_in_package</span><span class="plain-syntax"> = </span><span class="identifier-syntax">level</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">tls</span><span class="plain-syntax">-></span><span class="element-syntax">package</span><span class="plain-syntax">) </span><span class="identifier-syntax">level_in_package</span><span class="plain-syntax"> -= </span><span class="identifier-syntax">tls</span><span class="plain-syntax">-></span><span class="element-syntax">package_level</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">IC</span><span class="plain-syntax">-></span><span class="element-syntax">construct_ID</span><span class="plain-syntax"> != </span><span class="constant-syntax">PACKAGE_IST</span><span class="plain-syntax">) &&</span>
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<span class="plain-syntax"> (((</span><span class="reserved-syntax">int</span><span class="plain-syntax">) </span><span class="identifier-syntax">level_in_package</span><span class="plain-syntax"> < </span><span class="identifier-syntax">IC</span><span class="plain-syntax">-></span><span class="element-syntax">min_level</span><span class="plain-syntax">) ||</span>
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<span class="plain-syntax"> ((</span><span class="reserved-syntax">int</span><span class="plain-syntax">) </span><span class="identifier-syntax">level_in_package</span><span class="plain-syntax"> > </span><span class="identifier-syntax">IC</span><span class="plain-syntax">-></span><span class="element-syntax">max_level</span><span class="plain-syntax">))) {</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">M</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Str::new</span><span class="plain-syntax">();</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">M</span><span class="plain-syntax">, </span><span class="string-syntax">"construct '%S' used at level %d in its package, not %d to %d"</span><span class="plain-syntax">,</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">IC</span><span class="plain-syntax">-></span><span class="element-syntax">construct_name</span><span class="plain-syntax">, </span><span class="identifier-syntax">level_in_package</span><span class="plain-syntax">, </span><span class="identifier-syntax">IC</span><span class="plain-syntax">-></span><span class="element-syntax">min_level</span><span class="plain-syntax">, </span><span class="identifier-syntax">IC</span><span class="plain-syntax">-></span><span class="element-syntax">max_level</span><span class="plain-syntax">);</span>
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|
<span class="plain-syntax"> </span><a href="3-ie.html#SP5" class="function-link"><span class="function-syntax">InterErrors::issue</span></a><span class="plain-syntax">(</span><a href="3-ie.html#SP4" class="function-link"><span class="function-syntax">InterErrors::plain</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">M</span><span class="plain-syntax">, </span><span class="identifier-syntax">eloc</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">if</span><span class="plain-syntax"> (</span><a href="2-in.html#SP13" class="function-link"><span class="function-syntax">Inode::is</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">C</span><span class="plain-syntax">, </span><span class="constant-syntax">PACKAGE_IST</span><span class="plain-syntax">)) {</span>
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|
<span class="plain-syntax"> </span><span class="reserved-syntax">tree_lint_state</span><span class="plain-syntax"> </span><span class="identifier-syntax">inner_tls</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">inner_tls</span><span class="plain-syntax">.</span><span class="element-syntax">package</span><span class="plain-syntax"> = </span><a href="4-tpc.html#SP9" class="function-link"><span class="function-syntax">PackageInstruction::at_this_head</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">C</span><span class="plain-syntax">);</span>
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|
<span class="plain-syntax"> </span><span class="identifier-syntax">inner_tls</span><span class="plain-syntax">.</span><span class="element-syntax">package_level</span><span class="plain-syntax"> = </span><span class="identifier-syntax">level</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><a href="3-ic.html#SP7" class="function-link"><span class="function-syntax">InterInstruction::tree_lint_r</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="plain-syntax">, </span><span class="identifier-syntax">C</span><span class="plain-syntax">, &</span><span class="identifier-syntax">inner_tls</span><span class="plain-syntax">);</span>
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|
<span class="plain-syntax"> </span><span class="identifier-syntax">LOOP_OVER_SYMBOLS_TABLE</span><span class="plain-syntax">(</span><span class="identifier-syntax">S</span><span class="plain-syntax">, </span><a href="2-pck.html#SP10" class="function-link"><span class="function-syntax">InterPackage::scope</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">inner_tls</span><span class="plain-syntax">.</span><span class="element-syntax">package</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><a href="2-sym.html#SP6" class="function-link"><span class="function-syntax">InterSymbol::get_flag</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">S</span><span class="plain-syntax">, </span><span class="constant-syntax">SPECULATIVE_ISYMF</span><span class="plain-syntax">)) &&</span>
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|
<span class="plain-syntax"> (</span><a href="2-sym.html#SP15" class="function-link"><span class="function-syntax">InterSymbol::is_defined</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">S</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><a href="3-ie.html#SP5" class="function-link"><span class="function-syntax">InterErrors::issue</span></a><span class="plain-syntax">(</span><a href="3-ie.html#SP4" class="function-link"><span class="function-syntax">InterErrors::quoted</span></a><span class="plain-syntax">(</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">I</span><span class="string-syntax">"symbol undefined in package"</span><span class="plain-syntax">,</span>
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|
<span class="plain-syntax"> </span><a href="2-sym.html#SP19" class="function-link"><span class="function-syntax">InterSymbol::identifier</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">S</span><span class="plain-syntax">), </span><span class="identifier-syntax">eloc</span><span class="plain-syntax">));</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><a href="3-ic.html#SP7" class="function-link"><span class="function-syntax">InterInstruction::tree_lint_r</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="plain-syntax">, </span><span class="identifier-syntax">C</span><span class="plain-syntax">, </span><span class="identifier-syntax">tls</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<ul class="endnotetexts"><li>The structure tree_lint_state is accessed in 2/it, 2/in, 2/bkm, 2/trn and here.</li></ul>
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|
<p class="commentary firstcommentary"><a id="SP8" class="paragraph-anchor"></a><b>§8. </b>So much for a construct's invariants. Now we turn to the textual syntax for it,
|
|
which of course applies only to the textual form of Inter. Moreover, the syntax
|
|
fields of an <a href="3-ic.html#SP1" class="internal">inter_construct</a> are used only for parsing, and not for printing
|
|
instructions out again; it's just not worth the bother of doing it that way,
|
|
elegant as it might be. So note that if a syntax changes, the corresponding
|
|
function to write an instruction must change too.
|
|
</p>
|
|
|
|
<p class="commentary">So: <span class="extract"><span class="extract-syntax">syntax</span></span> specifies the textual format of the construct for parsing purposes.
|
|
It needs to be set up so that no two different constructs can match the same
|
|
line of text. The <span class="extract"><span class="extract-syntax">syntax</span></span> is easier to read than a regular expression, which is
|
|
what we turn it into. So for example <span class="extract"><span class="extract-syntax">deploy !IDENTIFIER</span></span> would match the
|
|
literal word <span class="extract"><span class="extract-syntax">deploy</span></span>, then any amount of white space, then a literal <span class="extract"><span class="extract-syntax">!</span></span> and
|
|
immediately following it an identifier.
|
|
</p>
|
|
|
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<p class="commentary">Note that it is legal not to call this function, i.e., to create a construct
|
|
but give it no syntax. If so, it will be inexpressible in textual Inter code.
|
|
</p>
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<pre class="definitions code-font"><span class="definition-keyword">define</span> <span class="constant-syntax">MAX_RECOGNITION_REGEXP_LENGTH</span><span class="plain-syntax"> </span><span class="constant-syntax">64</span>
|
|
</pre>
|
|
<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">InterInstruction::specify_syntax</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">InterInstruction::specify_syntax</span></span>:<br/>The Comment Construct - <a href="4-tcc.html#SP1">§1</a><br/>The Constant Construct - <a href="4-tcc2.html#SP1">§1</a><br/>The Insert Construct - <a href="4-tic.html#SP1">§1</a><br/>The Instance Construct - <a href="4-tic2.html#SP1">§1</a><br/>The Origin Construct - <a href="4-toc.html#SP1">§1</a><br/>The Package Construct - <a href="4-tpc.html#SP1">§1</a><br/>The PackageType Construct - <a href="4-tpc2.html#SP1">§1</a><br/>The Permission Construct - <a href="4-tpc3.html#SP1">§1</a><br/>The Pragma Construct - <a href="4-tpc4.html#SP1">§1</a><br/>The Primitive Construct - <a href="4-tpc5.html#SP1">§1</a><br/>The Property Construct - <a href="4-tpc6.html#SP1">§1</a><br/>The PropertyValue Construct - <a href="4-tpc7.html#SP1">§1</a><br/>The Provenance Construct - <a href="4-tpc8.html#SP1">§1</a><br/>The Typename Construct - <a href="4-ttc.html#SP1">§1</a><br/>The Variable Construct - <a href="4-tvc.html#SP1">§1</a><br/>The Assembly Construct - <a href="5-tac.html#SP1">§1</a><br/>The Cast Construct - <a href="5-tcc.html#SP1">§1</a><br/>The Code Construct - <a href="5-tcc2.html#SP1">§1</a><br/>The Evaluation Construct - <a href="5-tec.html#SP1">§1</a><br/>The Inv Construct - <a href="5-tic.html#SP1">§1</a><br/>The Lab Construct - <a href="5-tlc.html#SP1">§1</a><br/>The Label Construct - <a href="5-tlc2.html#SP1">§1</a><br/>The Local Construct - <a href="5-tlc3.html#SP1">§1</a><br/>The Ref Construct - <a href="5-trc.html#SP1">§1</a><br/>The Reference Construct - <a href="5-trc2.html#SP1">§1</a><br/>The Splat Construct - <a href="5-tsc.html#SP1">§1</a><br/>The Val Construct - <a href="5-tvc.html#SP1">§1</a><br/>The Plug Construct - <a href="6-tpc.html#SP1">§1</a><br/>The Socket Construct - <a href="6-tsc.html#SP1">§1</a><br/>The Version Construct - <a href="6-tvc.html#SP1">§1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inter_construct</span><span class="plain-syntax"> *</span><span class="identifier-syntax">IC</span><span class="plain-syntax">, </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">syntax</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">IC</span><span class="plain-syntax">-></span><span class="element-syntax">syntax</span><span class="plain-syntax"> = </span><span class="identifier-syntax">syntax</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">TEMPORARY_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">regexp</span><span class="plain-syntax">)</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"> = </span><span class="constant-syntax">0</span><span class="plain-syntax">; </span><span class="identifier-syntax">i</span><span class="plain-syntax"> < </span><span class="identifier-syntax">Str::len</span><span class="plain-syntax">(</span><span class="identifier-syntax">syntax</span><span class="plain-syntax">); </span><span class="identifier-syntax">i</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">Str::includes_wide_string_at</span><span class="plain-syntax">(</span><span class="identifier-syntax">syntax</span><span class="plain-syntax">, </span><span class="identifier-syntax">L</span><span class="string-syntax">"OPTIONALIDENTIFIER"</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">i</span><span class="plain-syntax"> += </span><span class="constant-syntax">17</span><span class="plain-syntax">; </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">regexp</span><span class="plain-syntax">, </span><span class="string-syntax">"*(%%i*)"</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">Str::includes_wide_string_at</span><span class="plain-syntax">(</span><span class="identifier-syntax">syntax</span><span class="plain-syntax">, </span><span class="identifier-syntax">L</span><span class="string-syntax">"WHITESPACE"</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">i</span><span class="plain-syntax"> += </span><span class="constant-syntax">9</span><span class="plain-syntax">; </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">regexp</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">else</span><span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Str::includes_wide_string_at</span><span class="plain-syntax">(</span><span class="identifier-syntax">syntax</span><span class="plain-syntax">, </span><span class="identifier-syntax">L</span><span class="string-syntax">"IDENTIFIER"</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">i</span><span class="plain-syntax"> += </span><span class="constant-syntax">9</span><span class="plain-syntax">; </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">regexp</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">else</span><span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Str::includes_wide_string_at</span><span class="plain-syntax">(</span><span class="identifier-syntax">syntax</span><span class="plain-syntax">, </span><span class="identifier-syntax">L</span><span class="string-syntax">"_IDENTIFIER"</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">i</span><span class="plain-syntax"> += </span><span class="constant-syntax">10</span><span class="plain-syntax">; </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">regexp</span><span class="plain-syntax">, </span><span class="string-syntax">"(_%%i+)"</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">Str::includes_wide_string_at</span><span class="plain-syntax">(</span><span class="identifier-syntax">syntax</span><span class="plain-syntax">, </span><span class="identifier-syntax">L</span><span class="string-syntax">".IDENTIFIER"</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">i</span><span class="plain-syntax"> += </span><span class="constant-syntax">10</span><span class="plain-syntax">; </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">regexp</span><span class="plain-syntax">, </span><span class="string-syntax">"(.%%i+)"</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">Str::includes_wide_string_at</span><span class="plain-syntax">(</span><span class="identifier-syntax">syntax</span><span class="plain-syntax">, </span><span class="identifier-syntax">L</span><span class="string-syntax">"!IDENTIFIER"</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">i</span><span class="plain-syntax"> += </span><span class="constant-syntax">10</span><span class="plain-syntax">; </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">regexp</span><span class="plain-syntax">, </span><span class="string-syntax">"(!%%i+)"</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">Str::includes_wide_string_at</span><span class="plain-syntax">(</span><span class="identifier-syntax">syntax</span><span class="plain-syntax">, </span><span class="identifier-syntax">L</span><span class="string-syntax">"IDENTIFIER"</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">i</span><span class="plain-syntax"> += </span><span class="constant-syntax">9</span><span class="plain-syntax">; </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">regexp</span><span class="plain-syntax">, </span><span class="string-syntax">"(%%i+)"</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">Str::includes_wide_string_at</span><span class="plain-syntax">(</span><span class="identifier-syntax">syntax</span><span class="plain-syntax">, </span><span class="identifier-syntax">L</span><span class="string-syntax">"NUMBER"</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">i</span><span class="plain-syntax"> += </span><span class="constant-syntax">5</span><span class="plain-syntax">; </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">regexp</span><span class="plain-syntax">, </span><span class="string-syntax">"(%%d+)"</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">Str::includes_wide_string_at</span><span class="plain-syntax">(</span><span class="identifier-syntax">syntax</span><span class="plain-syntax">, </span><span class="identifier-syntax">L</span><span class="string-syntax">"TOKENS"</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">i</span><span class="plain-syntax"> += </span><span class="constant-syntax">5</span><span class="plain-syntax">; </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">regexp</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">else</span><span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Str::includes_wide_string_at</span><span class="plain-syntax">(</span><span class="identifier-syntax">syntax</span><span class="plain-syntax">, </span><span class="identifier-syntax">L</span><span class="string-syntax">"MINTOKENS"</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">i</span><span class="plain-syntax"> += </span><span class="constant-syntax">8</span><span class="plain-syntax">; </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">regexp</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">else</span><span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Str::includes_wide_string_at</span><span class="plain-syntax">(</span><span class="identifier-syntax">syntax</span><span class="plain-syntax">, </span><span class="identifier-syntax">L</span><span class="string-syntax">"TOKEN"</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">i</span><span class="plain-syntax"> += </span><span class="constant-syntax">4</span><span class="plain-syntax">; </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">regexp</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">else</span><span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Str::includes_wide_string_at</span><span class="plain-syntax">(</span><span class="identifier-syntax">syntax</span><span class="plain-syntax">, </span><span class="identifier-syntax">L</span><span class="string-syntax">"TEXT"</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">i</span><span class="plain-syntax"> += </span><span class="constant-syntax">3</span><span class="plain-syntax">; </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">regexp</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">else</span><span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">Str::includes_wide_string_at</span><span class="plain-syntax">(</span><span class="identifier-syntax">syntax</span><span class="plain-syntax">, </span><span class="identifier-syntax">L</span><span class="string-syntax">"ANY"</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">i</span><span class="plain-syntax"> += </span><span class="constant-syntax">2</span><span class="plain-syntax">; </span><span class="identifier-syntax">WRITE_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">regexp</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">else</span><span class="plain-syntax"> {</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">wchar_t</span><span class="plain-syntax"> </span><span class="identifier-syntax">c</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Str::get_at</span><span class="plain-syntax">(</span><span class="identifier-syntax">syntax</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">c</span><span class="plain-syntax"> == </span><span class="character-syntax">'\''</span><span class="plain-syntax">) </span><span class="identifier-syntax">c</span><span class="plain-syntax"> = </span><span class="character-syntax">'"'</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">PUT_TO</span><span class="plain-syntax">(</span><span class="identifier-syntax">regexp</span><span class="plain-syntax">, </span><span class="identifier-syntax">c</span><span class="plain-syntax">);</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">Str::len</span><span class="plain-syntax">(</span><span class="identifier-syntax">regexp</span><span class="plain-syntax">) >= </span><span class="constant-syntax">MAX_RECOGNITION_REGEXP_LENGTH</span><span class="plain-syntax"> - </span><span class="constant-syntax">1</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">"too much syntax"</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">j</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">LOOP_THROUGH_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">pos</span><span class="plain-syntax">, </span><span class="identifier-syntax">regexp</span><span class="plain-syntax">) </span><span class="identifier-syntax">IC</span><span class="plain-syntax">-></span><span class="element-syntax">recognition_regexp</span><span class="plain-syntax">[</span><span class="identifier-syntax">j</span><span class="plain-syntax">++] = </span><span class="identifier-syntax">Str::get</span><span class="plain-syntax">(</span><span class="identifier-syntax">pos</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">IC</span><span class="plain-syntax">-></span><span class="element-syntax">recognition_regexp</span><span class="plain-syntax">[</span><span class="identifier-syntax">j</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">DISCARD_TEXT</span><span class="plain-syntax">(</span><span class="identifier-syntax">regexp</span><span class="plain-syntax">)</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP9" class="paragraph-anchor"></a><b>§9. </b>There isn't really a construct with ID 0: this is used only as a sort of "not
|
|
a legal construct" value. Notice the way we give it no syntax, grant it no
|
|
permissions, and allow it only in an impossible range. So this cannot be expressed
|
|
in textual Inter, and cannot be stored in bytecode binary Inter either.
|
|
</p>
|
|
|
|
<pre class="definitions code-font"><span class="definition-keyword">enum</span> <span class="constant-syntax">INVALID_IST</span><span class="plain-syntax"> </span><span class="identifier-syntax">from</span><span class="plain-syntax"> </span><span class="constant-syntax">0</span>
|
|
</pre>
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">InterInstruction::define_invalid_construct</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">InterInstruction::define_invalid_construct</span></span>:<br/><a href="3-ic.html#SP15">§15</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">inter_construct</span><span class="plain-syntax"> *</span><span class="identifier-syntax">IC</span><span class="plain-syntax"> = </span><a href="3-ic.html#SP1" class="function-link"><span class="function-syntax">InterInstruction::create_construct</span></a><span class="plain-syntax">(</span><span class="constant-syntax">INVALID_IST</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"invalid"</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><a href="3-ic.html#SP3" class="function-link"><span class="function-syntax">InterInstruction::allow_in_depth_range</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">IC</span><span class="plain-syntax">, </span><span class="constant-syntax">0</span><span class="plain-syntax">, -1);</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP10" class="paragraph-anchor"></a><b>§10. </b>The valid construct IDs then count upwards from there. Note that changing any
|
|
of these values would invalidate existing Inter binary files, necessitating a
|
|
bump of <a href="1-tiv.html" class="internal">The Inter Version</a>.
|
|
</p>
|
|
|
|
<p class="commentary">These are constructs used for instructions outside function bodies:
|
|
</p>
|
|
|
|
<pre class="definitions code-font"><span class="definition-keyword">enum</span> <span class="constant-syntax">COMMENT_IST</span>
|
|
<span class="definition-keyword">enum</span> <span class="constant-syntax">CONSTANT_IST</span>
|
|
<span class="definition-keyword">enum</span> <span class="constant-syntax">INSERT_IST</span>
|
|
<span class="definition-keyword">enum</span> <span class="constant-syntax">INSTANCE_IST</span>
|
|
<span class="definition-keyword">enum</span> <span class="constant-syntax">NOP_IST</span>
|
|
<span class="definition-keyword">enum</span> <span class="constant-syntax">ORIGIN_IST</span>
|
|
<span class="definition-keyword">enum</span> <span class="constant-syntax">PACKAGE_IST</span>
|
|
<span class="definition-keyword">enum</span> <span class="constant-syntax">PACKAGETYPE_IST</span>
|
|
<span class="definition-keyword">enum</span> <span class="constant-syntax">PERMISSION_IST</span>
|
|
<span class="definition-keyword">enum</span> <span class="constant-syntax">PRAGMA_IST</span>
|
|
<span class="definition-keyword">enum</span> <span class="constant-syntax">PRIMITIVE_IST</span>
|
|
<span class="definition-keyword">enum</span> <span class="constant-syntax">PROPERTY_IST</span>
|
|
<span class="definition-keyword">enum</span> <span class="constant-syntax">PROPERTYVALUE_IST</span>
|
|
<span class="definition-keyword">enum</span> <span class="constant-syntax">PROVENANCE_IST</span>
|
|
<span class="definition-keyword">enum</span> <span class="constant-syntax">TYPENAME_IST</span>
|
|
<span class="definition-keyword">enum</span> <span class="constant-syntax">VARIABLE_IST</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP11" class="paragraph-anchor"></a><b>§11. </b>These are constructs used for instructions inside function bodies:
|
|
</p>
|
|
|
|
<pre class="definitions code-font"><span class="definition-keyword">enum</span> <span class="constant-syntax">ASSEMBLY_IST</span>
|
|
<span class="definition-keyword">enum</span> <span class="constant-syntax">CAST_IST</span>
|
|
<span class="definition-keyword">enum</span> <span class="constant-syntax">CODE_IST</span>
|
|
<span class="definition-keyword">enum</span> <span class="constant-syntax">EVALUATION_IST</span>
|
|
<span class="definition-keyword">enum</span> <span class="constant-syntax">INV_IST</span>
|
|
<span class="definition-keyword">enum</span> <span class="constant-syntax">LAB_IST</span>
|
|
<span class="definition-keyword">enum</span> <span class="constant-syntax">LABEL_IST</span>
|
|
<span class="definition-keyword">enum</span> <span class="constant-syntax">LOCAL_IST</span>
|
|
<span class="definition-keyword">enum</span> <span class="constant-syntax">REF_IST</span>
|
|
<span class="definition-keyword">enum</span> <span class="constant-syntax">REFERENCE_IST</span>
|
|
<span class="definition-keyword">enum</span> <span class="constant-syntax">SPLAT_IST</span>
|
|
<span class="definition-keyword">enum</span> <span class="constant-syntax">VAL_IST</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP12" class="paragraph-anchor"></a><b>§12. </b>These are pseudo-constructs, in that they do not create instructions, and
|
|
instead specify something else about the tree:
|
|
</p>
|
|
|
|
<pre class="definitions code-font"><span class="definition-keyword">enum</span> <span class="constant-syntax">PLUG_IST</span>
|
|
<span class="definition-keyword">enum</span> <span class="constant-syntax">SOCKET_IST</span>
|
|
<span class="definition-keyword">enum</span> <span class="constant-syntax">VERSION_IST</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP13" class="paragraph-anchor"></a><b>§13. </b>Since these IDs are stored in the bytecode for an instruction, in fact in the
|
|
0th word of the frame, we will need to convert them to their <a href="3-ic.html#SP1" class="internal">inter_construct</a>
|
|
equivalents quickly. So we store a lookup table:
|
|
</p>
|
|
|
|
<pre class="definitions code-font"><span class="definition-keyword">define</span> <span class="constant-syntax">MAX_INTER_CONSTRUCTS</span><span class="plain-syntax"> </span><span class="constant-syntax">100</span>
|
|
</pre>
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">inter_construct_by_ID_ready</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
|
|
<span class="reserved-syntax">inter_construct</span><span class="plain-syntax"> *</span><span class="identifier-syntax">inter_construct_by_ID</span><span class="plain-syntax">[</span><span class="constant-syntax">MAX_INTER_CONSTRUCTS</span><span class="plain-syntax">];</span>
|
|
|
|
<span class="reserved-syntax">void</span><span class="plain-syntax"> </span><span class="function-syntax">InterInstruction::set_construct_for_ID</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">InterInstruction::set_construct_for_ID</span></span>:<br/><a href="3-ic.html#SP1">§1</a></span></button><span class="plain-syntax">(</span><span class="constant-syntax">inter_ti</span><span class="plain-syntax"> </span><span class="identifier-syntax">ID</span><span class="plain-syntax">, </span><span class="reserved-syntax">inter_construct</span><span class="plain-syntax"> *</span><span class="identifier-syntax">IC</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">inter_construct_by_ID_ready</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">inter_construct_by_ID_ready</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">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="plain-syntax"><</span><span class="constant-syntax">MAX_INTER_CONSTRUCTS</span><span class="plain-syntax">; </span><span class="identifier-syntax">i</span><span class="plain-syntax">++) </span><span class="identifier-syntax">inter_construct_by_ID</span><span class="plain-syntax">[</span><span class="identifier-syntax">i</span><span class="plain-syntax">] = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><span class="identifier-syntax">ID</span><span class="plain-syntax"> >= </span><span class="constant-syntax">MAX_INTER_CONSTRUCTS</span><span class="plain-syntax">) </span><span class="identifier-syntax">internal_error</span><span class="plain-syntax">(</span><span class="string-syntax">"too many constructs"</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">inter_construct_by_ID</span><span class="plain-syntax">[</span><span class="identifier-syntax">ID</span><span class="plain-syntax">] = </span><span class="identifier-syntax">IC</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
|
|
<span class="reserved-syntax">inter_construct</span><span class="plain-syntax"> *</span><span class="function-syntax">InterInstruction::get_construct_for_ID</span><button class="popup" onclick="togglePopup('usagePopup13')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup13">Usage of <span class="code-font"><span class="function-syntax">InterInstruction::get_construct_for_ID</span></span>:<br/><a href="3-ic.html#SP14">§14</a></span></button><span class="plain-syntax">(</span><span class="constant-syntax">inter_ti</span><span class="plain-syntax"> </span><span class="identifier-syntax">ID</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">ID</span><span class="plain-syntax"> == </span><span class="constant-syntax">INVALID_IST</span><span class="plain-syntax">) || (</span><span class="identifier-syntax">ID</span><span class="plain-syntax"> >= </span><span class="constant-syntax">MAX_INTER_CONSTRUCTS</span><span class="plain-syntax">) ||</span>
|
|
<span class="plain-syntax"> (</span><span class="identifier-syntax">inter_construct_by_ID_ready</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">NULL</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">inter_construct_by_ID</span><span class="plain-syntax">[</span><span class="identifier-syntax">ID</span><span class="plain-syntax">];</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP14" class="paragraph-anchor"></a><b>§14. </b>Whence, in a faintly paranoid way:
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|
</p>
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|
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|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="reserved-syntax">inter_error_message</span><span class="plain-syntax"> *</span><span class="function-syntax">InterInstruction::get_construct</span><button class="popup" onclick="togglePopup('usagePopup14')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup14">Usage of <span class="code-font"><span class="function-syntax">InterInstruction::get_construct</span></span>:<br/><a href="3-ic.html#SP7">§7</a>, <a href="3-ic.html#SP17">§17</a>, <a href="3-ic.html#SP18">§18</a>, <a href="3-ic.html#SP19">§19</a>, <a href="3-ic.html#SP22">§22</a><br/>Verifying Inter - <a href="3-vi.html#SP1">§1</a><br/>Inter Data Types - <a href="3-idt.html#SP23">§23</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inter_tree_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="reserved-syntax">inter_construct</span><span class="plain-syntax"> **</span><span class="identifier-syntax">to</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">P</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><a href="2-in.html#SP15" class="function-link"><span class="function-syntax">Inode::error</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"invalid node"</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">inter_construct</span><span class="plain-syntax"> *</span><span class="identifier-syntax">IC</span><span class="plain-syntax"> = </span><a href="3-ic.html#SP13" class="function-link"><span class="function-syntax">InterInstruction::get_construct_for_ID</span></a><span class="plain-syntax">(</span><a href="2-in.html#SP13" class="function-link"><span class="function-syntax">Inode::get_construct_ID</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">P</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">IC</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><a href="2-in.html#SP15" class="function-link"><span class="function-syntax">Inode::error</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"no such construct"</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">to</span><span class="plain-syntax">) *</span><span class="identifier-syntax">to</span><span class="plain-syntax"> = </span><span class="identifier-syntax">IC</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP15" class="paragraph-anchor"></a><b>§15. </b>Each construct is managed by its own section of code, and that includes
|
|
the creation of the constructs: so we poll those sections in turn.
|
|
</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">InterInstruction::create_language</span><button class="popup" onclick="togglePopup('usagePopup15')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup15">Usage of <span class="code-font"><span class="function-syntax">InterInstruction::create_language</span></span>:<br/>Bytecode Module - <a href="1-bm.html#SP3">§3</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">void</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><a href="2-ann.html#SP4" class="function-link"><span class="function-syntax">SymbolAnnotation::declare_canonical_annotations</span></a><span class="plain-syntax">();</span>
|
|
<span class="plain-syntax"> </span><a href="3-ic.html#SP9" class="function-link"><span class="function-syntax">InterInstruction::define_invalid_construct</span></a><span class="plain-syntax">();</span>
|
|
<span class="plain-syntax"> </span><a href="4-tnc.html#SP1" class="function-link"><span class="function-syntax">NopInstruction::define_construct</span></a><span class="plain-syntax">();</span>
|
|
<span class="plain-syntax"> </span><a href="4-tcc.html#SP1" class="function-link"><span class="function-syntax">CommentInstruction::define_construct</span></a><span class="plain-syntax">();</span>
|
|
<span class="plain-syntax"> </span><a href="4-toc.html#SP1" class="function-link"><span class="function-syntax">OriginInstruction::define_construct</span></a><span class="plain-syntax">();</span>
|
|
<span class="plain-syntax"> </span><a href="4-tpc8.html#SP1" class="function-link"><span class="function-syntax">ProvenanceInstruction::define_construct</span></a><span class="plain-syntax">();</span>
|
|
<span class="plain-syntax"> </span><a href="6-tpc.html#SP1" class="function-link"><span class="function-syntax">PlugInstruction::define_construct</span></a><span class="plain-syntax">();</span>
|
|
<span class="plain-syntax"> </span><a href="6-tsc.html#SP1" class="function-link"><span class="function-syntax">SocketInstruction::define_construct</span></a><span class="plain-syntax">();</span>
|
|
<span class="plain-syntax"> </span><a href="6-tvc.html#SP1" class="function-link"><span class="function-syntax">VersionInstruction::define_construct</span></a><span class="plain-syntax">();</span>
|
|
<span class="plain-syntax"> </span><a href="4-tpc4.html#SP1" class="function-link"><span class="function-syntax">PragmaInstruction::define_construct</span></a><span class="plain-syntax">();</span>
|
|
<span class="plain-syntax"> </span><a href="4-tic.html#SP1" class="function-link"><span class="function-syntax">InsertInstruction::define_construct</span></a><span class="plain-syntax">();</span>
|
|
<span class="plain-syntax"> </span><a href="4-ttc.html#SP1" class="function-link"><span class="function-syntax">TypenameInstruction::define_construct</span></a><span class="plain-syntax">();</span>
|
|
<span class="plain-syntax"> </span><a href="4-tcc2.html#SP1" class="function-link"><span class="function-syntax">ConstantInstruction::define_construct</span></a><span class="plain-syntax">();</span>
|
|
<span class="plain-syntax"> </span><a href="4-tic2.html#SP1" class="function-link"><span class="function-syntax">InstanceInstruction::define_construct</span></a><span class="plain-syntax">();</span>
|
|
<span class="plain-syntax"> </span><a href="4-tvc.html#SP1" class="function-link"><span class="function-syntax">VariableInstruction::define_construct</span></a><span class="plain-syntax">();</span>
|
|
<span class="plain-syntax"> </span><a href="4-tpc6.html#SP1" class="function-link"><span class="function-syntax">PropertyInstruction::define_construct</span></a><span class="plain-syntax">();</span>
|
|
<span class="plain-syntax"> </span><a href="4-tpc3.html#SP1" class="function-link"><span class="function-syntax">PermissionInstruction::define_construct</span></a><span class="plain-syntax">();</span>
|
|
<span class="plain-syntax"> </span><a href="4-tpc7.html#SP1" class="function-link"><span class="function-syntax">PropertyValueInstruction::define_construct</span></a><span class="plain-syntax">();</span>
|
|
<span class="plain-syntax"> </span><a href="4-tpc5.html#SP1" class="function-link"><span class="function-syntax">PrimitiveInstruction::define_construct</span></a><span class="plain-syntax">();</span>
|
|
<span class="plain-syntax"> </span><a href="4-tpc.html#SP1" class="function-link"><span class="function-syntax">PackageInstruction::define_construct</span></a><span class="plain-syntax">();</span>
|
|
<span class="plain-syntax"> </span><a href="4-tpc2.html#SP1" class="function-link"><span class="function-syntax">PackageTypeInstruction::define_construct</span></a><span class="plain-syntax">();</span>
|
|
<span class="plain-syntax"> </span><a href="5-tlc2.html#SP1" class="function-link"><span class="function-syntax">LabelInstruction::define_construct</span></a><span class="plain-syntax">();</span>
|
|
<span class="plain-syntax"> </span><a href="5-tlc3.html#SP1" class="function-link"><span class="function-syntax">LocalInstruction::define_construct</span></a><span class="plain-syntax">();</span>
|
|
<span class="plain-syntax"> </span><a href="5-tic.html#SP1" class="function-link"><span class="function-syntax">InvInstruction::define_construct</span></a><span class="plain-syntax">();</span>
|
|
<span class="plain-syntax"> </span><a href="5-trc.html#SP1" class="function-link"><span class="function-syntax">RefInstruction::define_construct</span></a><span class="plain-syntax">();</span>
|
|
<span class="plain-syntax"> </span><a href="5-tvc.html#SP1" class="function-link"><span class="function-syntax">ValInstruction::define_construct</span></a><span class="plain-syntax">();</span>
|
|
<span class="plain-syntax"> </span><a href="5-tlc.html#SP1" class="function-link"><span class="function-syntax">LabInstruction::define_construct</span></a><span class="plain-syntax">();</span>
|
|
<span class="plain-syntax"> </span><a href="5-tac.html#SP1" class="function-link"><span class="function-syntax">AssemblyInstruction::define_construct</span></a><span class="plain-syntax">();</span>
|
|
<span class="plain-syntax"> </span><a href="5-tcc2.html#SP1" class="function-link"><span class="function-syntax">CodeInstruction::define_construct</span></a><span class="plain-syntax">();</span>
|
|
<span class="plain-syntax"> </span><a href="5-tec.html#SP1" class="function-link"><span class="function-syntax">EvaluationInstruction::define_construct</span></a><span class="plain-syntax">();</span>
|
|
<span class="plain-syntax"> </span><a href="5-trc2.html#SP1" class="function-link"><span class="function-syntax">ReferenceInstruction::define_construct</span></a><span class="plain-syntax">();</span>
|
|
<span class="plain-syntax"> </span><a href="5-tcc.html#SP1" class="function-link"><span class="function-syntax">CastInstruction::define_construct</span></a><span class="plain-syntax">();</span>
|
|
<span class="plain-syntax"> </span><a href="5-tsc.html#SP1" class="function-link"><span class="function-syntax">SplatInstruction::define_construct</span></a><span class="plain-syntax">();</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP16" class="paragraph-anchor"></a><b>§16. </b>The result is printed when <a href="../inter/index.html" class="internal">inter</a> is run with the <span class="extract"><span class="extract-syntax">-constructs</span></span> switch.
|
|
</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">InterInstruction::show_constructs</span><span class="plain-syntax">(</span><span class="identifier-syntax">OUTPUT_STREAM</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">" Code Construct Syntax\n"</span><span class="plain-syntax">);</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">ID</span><span class="plain-syntax">=0; </span><span class="identifier-syntax">ID</span><span class="plain-syntax"><</span><span class="constant-syntax">MAX_INTER_CONSTRUCTS</span><span class="plain-syntax">; </span><span class="identifier-syntax">ID</span><span class="plain-syntax">++) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">inter_construct</span><span class="plain-syntax"> *</span><span class="identifier-syntax">IC</span><span class="plain-syntax"> = </span><span class="identifier-syntax">inter_construct_by_ID</span><span class="plain-syntax">[</span><span class="identifier-syntax">ID</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">IC</span><span class="plain-syntax">) && (</span><span class="identifier-syntax">ID</span><span class="plain-syntax"> != </span><span class="constant-syntax">INVALID_IST</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">" %4x %S"</span><span class="plain-syntax">, </span><span class="identifier-syntax">ID</span><span class="plain-syntax">, </span><span class="identifier-syntax">IC</span><span class="plain-syntax">-></span><span class="element-syntax">construct_name</span><span class="plain-syntax">);</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">j</span><span class="plain-syntax"> = </span><span class="identifier-syntax">Str::len</span><span class="plain-syntax">(</span><span class="identifier-syntax">IC</span><span class="plain-syntax">-></span><span class="element-syntax">construct_name</span><span class="plain-syntax">); </span><span class="identifier-syntax">j</span><span class="plain-syntax"><20; </span><span class="identifier-syntax">j</span><span class="plain-syntax">++) </span><span class="identifier-syntax">PUT</span><span class="plain-syntax">(</span><span class="character-syntax">' '</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">"%S\n"</span><span class="plain-syntax">, </span><span class="identifier-syntax">IC</span><span class="plain-syntax">-></span><span class="element-syntax">syntax</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax"> }</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP17" class="paragraph-anchor"></a><b>§17. </b>Okay then! We have our constructs: what shall we do with them?
|
|
</p>
|
|
|
|
<p class="commentary">The answer is that each construct behaves differently, in ways specified by
|
|
the following method calls on the relevant <a href="3-ic.html#SP1" class="internal">inter_construct</a>.
|
|
</p>
|
|
|
|
<p class="commentary">Firstly, each construct has a method for verifying (i) that it is being used in
|
|
a self-consistent way by the given instruction, and (ii) that it can see child
|
|
nodes to that instruction of a kind it expects.
|
|
</p>
|
|
|
|
<p class="commentary"><a href="3-ic.html#SP17" class="internal">InterInstruction::verify</a> should be called only by <a href="3-vi.html#SP1" class="internal">VerifyingInter::instruction</a>,
|
|
which ensures that <a href="3-ic.html#SP17" class="internal">InterInstruction::verify</a> is never called twice on the same
|
|
instruction. <span class="extract"><span class="extract-syntax">CONSTRUCT_VERIFY_MTID</span></span> methods for the constructs can therefore
|
|
safely assume that.
|
|
</p>
|
|
|
|
<pre class="definitions code-font"><span class="definition-keyword">enum</span> <span class="constant-syntax">CONSTRUCT_VERIFY_MTID</span>
|
|
<span class="definition-keyword">enum</span> <span class="constant-syntax">CONSTRUCT_VERIFY_CHILDREN_MTID</span>
|
|
</pre>
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="identifier-syntax">VOID_METHOD_TYPE</span><span class="plain-syntax">(</span><span class="constant-syntax">CONSTRUCT_VERIFY_MTID</span><span class="plain-syntax">, </span><span class="reserved-syntax">inter_construct</span><span class="plain-syntax"> *</span><span class="identifier-syntax">IC</span><span class="plain-syntax">, </span><span class="reserved-syntax">inter_tree_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">inter_package</span><span class="plain-syntax"> *</span><span class="identifier-syntax">owner</span><span class="plain-syntax">, </span><span class="reserved-syntax">inter_error_message</span><span class="plain-syntax"> **</span><span class="identifier-syntax">E</span><span class="plain-syntax">)</span>
|
|
<span class="identifier-syntax">VOID_METHOD_TYPE</span><span class="plain-syntax">(</span><span class="constant-syntax">CONSTRUCT_VERIFY_CHILDREN_MTID</span><span class="plain-syntax">, </span><span class="reserved-syntax">inter_construct</span><span class="plain-syntax"> *</span><span class="identifier-syntax">IC</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">inter_tree_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="reserved-syntax">inter_error_message</span><span class="plain-syntax"> **</span><span class="identifier-syntax">E</span><span class="plain-syntax">)</span>
|
|
|
|
<span class="reserved-syntax">inter_error_message</span><span class="plain-syntax"> *</span><span class="function-syntax">InterInstruction::verify</span><button class="popup" onclick="togglePopup('usagePopup16')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup16">Usage of <span class="code-font"><span class="function-syntax">InterInstruction::verify</span></span>:<br/>Verifying Inter - <a href="3-vi.html#SP1_3">§1.3</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inter_package</span><span class="plain-syntax"> *</span><span class="identifier-syntax">owner</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">inter_construct</span><span class="plain-syntax"> *</span><span class="identifier-syntax">IC</span><span class="plain-syntax">, </span><span class="reserved-syntax">inter_tree_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">inter_error_message</span><span class="plain-syntax"> *</span><span class="identifier-syntax">E</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">VOID_METHOD_CALL</span><span class="plain-syntax">(</span><span class="identifier-syntax">IC</span><span class="plain-syntax">, </span><span class="constant-syntax">CONSTRUCT_VERIFY_MTID</span><span class="plain-syntax">, </span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="identifier-syntax">owner</span><span class="plain-syntax">, &</span><span class="identifier-syntax">E</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">E</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">E</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><a href="2-in.html#SP6" class="function-link"><span class="function-syntax">Inode::tree</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">)-></span><span class="element-syntax">cross_referencing_suspended</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">E</span><span class="plain-syntax"> = </span><a href="3-ic.html#SP18" class="function-link"><span class="function-syntax">InterInstruction::xref</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">P</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">E</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
|
|
<span class="reserved-syntax">inter_error_message</span><span class="plain-syntax"> *</span><span class="function-syntax">InterInstruction::verify_children</span><button class="popup" onclick="togglePopup('usagePopup17')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup17">Usage of <span class="code-font"><span class="function-syntax">InterInstruction::verify_children</span></span>:<br/><a href="3-ic.html#SP7">§7</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inter_tree_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">inter_construct</span><span class="plain-syntax"> *</span><span class="identifier-syntax">IC</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">inter_error_message</span><span class="plain-syntax"> *</span><span class="identifier-syntax">E</span><span class="plain-syntax"> = </span><a href="3-ic.html#SP14" class="function-link"><span class="function-syntax">InterInstruction::get_construct</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">, &</span><span class="identifier-syntax">IC</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">E</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">E</span><span class="plain-syntax">;</span>
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|
<span class="plain-syntax"> </span><span class="reserved-syntax">int</span><span class="plain-syntax"> </span><span class="identifier-syntax">PL</span><span class="plain-syntax"> = </span><a href="2-in.html#SP13" class="function-link"><span class="function-syntax">Inode::get_level</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">);</span>
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|
<span class="plain-syntax"> </span><span class="identifier-syntax">LOOP_THROUGH_INTER_CHILDREN</span><span class="plain-syntax">(</span><span class="identifier-syntax">C</span><span class="plain-syntax">, </span><span class="identifier-syntax">P</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><a href="2-in.html#SP13" class="function-link"><span class="function-syntax">Inode::get_level</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">C</span><span class="plain-syntax">) != </span><span class="identifier-syntax">PL</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">return</span><span class="plain-syntax"> </span><a href="2-in.html#SP15" class="function-link"><span class="function-syntax">Inode::error</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="identifier-syntax">I</span><span class="string-syntax">"child node has incorrect level"</span><span class="plain-syntax">, </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">);</span>
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|
<span class="plain-syntax"> </span><span class="identifier-syntax">VOID_METHOD_CALL</span><span class="plain-syntax">(</span><span class="identifier-syntax">IC</span><span class="plain-syntax">, </span><span class="constant-syntax">CONSTRUCT_VERIFY_CHILDREN_MTID</span><span class="plain-syntax">, </span><span class="identifier-syntax">P</span><span class="plain-syntax">, &</span><span class="identifier-syntax">E</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">E</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP18" class="paragraph-anchor"></a><b>§18. </b>A second round of verification then happens when the whole of an Inter tree
|
|
has been read in from an external file. This enables us to cope with a situation
|
|
where property permissions occur before the properties or owners they permit,
|
|
or where property values occur before the permissions which allow them.
|
|
</p>
|
|
|
|
<p class="commentary">Note that this system is opt-in, and is used only when Inter is being read from
|
|
a file: when Inter is being generated in memory, cross-referencing happens
|
|
immediately.
|
|
</p>
|
|
|
|
<pre class="definitions code-font"><span class="definition-keyword">enum</span> <span class="constant-syntax">CONSTRUCT_XREF_MTID</span>
|
|
</pre>
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="identifier-syntax">VOID_METHOD_TYPE</span><span class="plain-syntax">(</span><span class="constant-syntax">CONSTRUCT_XREF_MTID</span><span class="plain-syntax">, </span><span class="reserved-syntax">inter_construct</span><span class="plain-syntax"> *</span><span class="identifier-syntax">IC</span><span class="plain-syntax">, </span><span class="reserved-syntax">inter_tree_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">inter_error_message</span><span class="plain-syntax"> **</span><span class="identifier-syntax">E</span><span class="plain-syntax">)</span>
|
|
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|
<span class="reserved-syntax">inter_error_message</span><span class="plain-syntax"> *</span><span class="function-syntax">InterInstruction::xref</span><button class="popup" onclick="togglePopup('usagePopup18')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup18">Usage of <span class="code-font"><span class="function-syntax">InterInstruction::xref</span></span>:<br/><a href="3-ic.html#SP17">§17</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inter_tree_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">inter_error_message</span><span class="plain-syntax"> *</span><span class="identifier-syntax">E</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">inter_construct</span><span class="plain-syntax"> *</span><span class="identifier-syntax">IC</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><a href="3-ic.html#SP14" class="function-link"><span class="function-syntax">InterInstruction::get_construct</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">, &</span><span class="identifier-syntax">IC</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">VOID_METHOD_CALL</span><span class="plain-syntax">(</span><span class="identifier-syntax">IC</span><span class="plain-syntax">, </span><span class="constant-syntax">CONSTRUCT_XREF_MTID</span><span class="plain-syntax">, </span><span class="identifier-syntax">P</span><span class="plain-syntax">, &</span><span class="identifier-syntax">E</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">E</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">InterInstruction::suspend_cross_referencing</span><button class="popup" onclick="togglePopup('usagePopup19')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup19">Usage of <span class="code-font"><span class="function-syntax">InterInstruction::suspend_cross_referencing</span></span>:<br/>Inter in Binary Files - <a href="3-iibf.html#SP10">§10</a><br/>Inter in Text Files - <a href="3-iitf.html#SP1">§1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inter_tree</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">I</span><span class="plain-syntax">-></span><span class="element-syntax">cross_referencing_suspended</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">void</span><span class="plain-syntax"> </span><span class="function-syntax">InterInstruction::resume_cross_referencing</span><button class="popup" onclick="togglePopup('usagePopup20')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup20">Usage of <span class="code-font"><span class="function-syntax">InterInstruction::resume_cross_referencing</span></span>:<br/>Inter in Binary Files - <a href="3-iibf.html#SP10">§10</a><br/>Inter in Text Files - <a href="3-iitf.html#SP1">§1</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inter_tree</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">I</span><span class="plain-syntax">-></span><span class="element-syntax">cross_referencing_suspended</span><span class="plain-syntax"> = </span><span class="identifier-syntax">FALSE</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><a href="2-it.html#SP8" class="function-link"><span class="function-syntax">InterTree::traverse</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="plain-syntax">, </span><a href="3-ic.html#SP18" class="function-link"><span class="function-syntax">InterInstruction::xref_node</span></a><span class="plain-syntax">, </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">, </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">, </span><span class="constant-syntax">PERMISSION_IST</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><a href="2-it.html#SP8" class="function-link"><span class="function-syntax">InterTree::traverse</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="plain-syntax">, </span><a href="3-ic.html#SP18" class="function-link"><span class="function-syntax">InterInstruction::xref_node</span></a><span class="plain-syntax">, </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">, </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">, -</span><span class="constant-syntax">PERMISSION_IST</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">InterInstruction::xref_node</span><span class="plain-syntax">(</span><span class="reserved-syntax">inter_tree</span><span class="plain-syntax"> *</span><span class="identifier-syntax">I</span><span class="plain-syntax">, </span><span class="reserved-syntax">inter_tree_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="reserved-syntax">void</span><span class="plain-syntax"> *</span><span class="identifier-syntax">state</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">inter_error_message</span><span class="plain-syntax"> *</span><span class="identifier-syntax">E</span><span class="plain-syntax"> = </span><a href="3-ic.html#SP18" class="function-link"><span class="function-syntax">InterInstruction::xref</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">P</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">E</span><span class="plain-syntax">) </span><a href="3-ie.html#SP5" class="function-link"><span class="function-syntax">InterErrors::issue</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">E</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP19" class="paragraph-anchor"></a><b>§19. </b>This method writes out an instruction in textual Inter format, and this is
|
|
handled differently by each construct.
|
|
</p>
|
|
|
|
<pre class="definitions code-font"><span class="definition-keyword">enum</span> <span class="constant-syntax">CONSTRUCT_WRITE_MTID</span>
|
|
</pre>
|
|
<pre class="displayed-code all-displayed-code code-font">
|
|
<span class="identifier-syntax">VOID_METHOD_TYPE</span><span class="plain-syntax">(</span><span class="constant-syntax">CONSTRUCT_WRITE_MTID</span><span class="plain-syntax">, </span><span class="reserved-syntax">inter_construct</span><span class="plain-syntax"> *</span><span class="identifier-syntax">IC</span><span class="plain-syntax">, </span><span class="identifier-syntax">text_stream</span><span class="plain-syntax"> *</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">inter_tree_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax">)</span>
|
|
|
|
<span class="reserved-syntax">inter_error_message</span><span class="plain-syntax"> *</span><span class="function-syntax">InterInstruction::write_construct_text</span><button class="popup" onclick="togglePopup('usagePopup21')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup21">Usage of <span class="code-font"><span class="function-syntax">InterInstruction::write_construct_text</span></span>:<br/>Inter in Text Files - <a href="3-iitf.html#SP9">§9</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">OUTPUT_STREAM</span><span class="plain-syntax">, </span><span class="reserved-syntax">inter_tree_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><a href="2-in.html#SP13" class="function-link"><span class="function-syntax">Inode::is</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="constant-syntax">NOP_IST</span><span class="plain-syntax">)) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><a href="3-ic.html#SP19" class="function-link"><span class="function-syntax">InterInstruction::write_construct_text_allowing_nop</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">P</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax">}</span>
|
|
|
|
<span class="reserved-syntax">inter_error_message</span><span class="plain-syntax"> *</span><span class="function-syntax">InterInstruction::write_construct_text_allowing_nop</span><button class="popup" onclick="togglePopup('usagePopup22')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup22">Usage of <span class="code-font"><span class="function-syntax">InterInstruction::write_construct_text_allowing_nop</span></span>:<br/>Inter Errors - <a href="3-ie.html#SP6">§6</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">OUTPUT_STREAM</span><span class="plain-syntax">,</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">inter_tree_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">inter_construct</span><span class="plain-syntax"> *</span><span class="identifier-syntax">IC</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">inter_error_message</span><span class="plain-syntax"> *</span><span class="identifier-syntax">E</span><span class="plain-syntax"> = </span><a href="3-ic.html#SP14" class="function-link"><span class="function-syntax">InterInstruction::get_construct</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">, &</span><span class="identifier-syntax">IC</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">E</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">E</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">for</span><span class="plain-syntax"> (</span><span class="constant-syntax">inter_ti</span><span class="plain-syntax"> </span><span class="identifier-syntax">L</span><span class="plain-syntax">=0; </span><span class="identifier-syntax">L</span><span class="plain-syntax"><(</span><span class="constant-syntax">inter_ti</span><span class="plain-syntax">) </span><a href="2-in.html#SP13" class="function-link"><span class="function-syntax">Inode::get_level</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">); </span><span class="identifier-syntax">L</span><span class="plain-syntax">++) </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"\t"</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="identifier-syntax">VOID_METHOD_CALL</span><span class="plain-syntax">(</span><span class="identifier-syntax">IC</span><span class="plain-syntax">, </span><span class="constant-syntax">CONSTRUCT_WRITE_MTID</span><span class="plain-syntax">, </span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">P</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">IC</span><span class="plain-syntax">-></span><span class="element-syntax">symbol_defn_field</span><span class="plain-syntax"> >= </span><span class="constant-syntax">0</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">inter_symbol</span><span class="plain-syntax"> *</span><span class="identifier-syntax">con_name</span><span class="plain-syntax"> =</span>
|
|
<span class="plain-syntax"> </span><a href="2-st.html#SP14" class="function-link"><span class="function-syntax">InterSymbolsTable::symbol_from_ID_at_node</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="identifier-syntax">IC</span><span class="plain-syntax">-></span><span class="element-syntax">symbol_defn_field</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><a href="2-ann.html#SP14" class="function-link"><span class="function-syntax">SymbolAnnotation::write_annotations</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="identifier-syntax">con_name</span><span class="plain-syntax">);</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">"\n"</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">if</span><span class="plain-syntax"> (</span><a href="2-in.html#SP13" class="function-link"><span class="function-syntax">Inode::is</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="constant-syntax">PACKAGE_IST</span><span class="plain-syntax">))</span>
|
|
<span class="plain-syntax"> </span><a href="4-tpc.html#SP8" class="function-link"><span class="function-syntax">PackageInstruction::write_plugs_and_sockets</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">OUT</span><span class="plain-syntax">, </span><span class="identifier-syntax">P</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP20" class="paragraph-anchor"></a><b>§20. </b>A much less elegant presentation is just to dump the hexadecimal bytecode,
|
|
and this is used only for debugging or to show errors in binary Inter files.
|
|
</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">InterInstruction::instruction_writer</span><button class="popup" onclick="togglePopup('usagePopup23')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup23">Usage of <span class="code-font"><span class="function-syntax">InterInstruction::instruction_writer</span></span>:<br/>Bytecode Module - <a href="1-bm.html#SP3_3">§3.3</a></span></button><span class="plain-syntax">(</span><span class="identifier-syntax">OUTPUT_STREAM</span><span class="plain-syntax">, </span><span class="reserved-syntax">char</span><span class="plain-syntax"> *</span><span class="identifier-syntax">format_string</span><span class="plain-syntax">, </span><span class="reserved-syntax">void</span><span class="plain-syntax"> *</span><span class="identifier-syntax">vI</span><span class="plain-syntax">) {</span>
|
|
<span class="plain-syntax"> </span><span class="reserved-syntax">inter_tree_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">F</span><span class="plain-syntax"> = (</span><span class="reserved-syntax">inter_tree_node</span><span class="plain-syntax"> *) </span><span class="identifier-syntax">vI</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">F</span><span class="plain-syntax"> == </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">) { </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">"<no frame>"</span><span class="plain-syntax">); </span><span class="reserved-syntax">return</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">"%05d -> "</span><span class="plain-syntax">, </span><span class="identifier-syntax">F</span><span class="plain-syntax">-></span><span class="element-syntax">W</span><span class="plain-syntax">.</span><span class="element-syntax">index</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">"%d {"</span><span class="plain-syntax">, </span><span class="identifier-syntax">F</span><span class="plain-syntax">-></span><span class="element-syntax">W</span><span class="plain-syntax">.</span><span class="element-syntax">extent</span><span class="plain-syntax">);</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"><F-></span><span class="element-syntax">W</span><span class="plain-syntax">.</span><span class="element-syntax">extent</span><span class="plain-syntax">; </span><span class="identifier-syntax">i</span><span class="plain-syntax">++) </span><span class="identifier-syntax">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">" %08x"</span><span class="plain-syntax">, </span><span class="identifier-syntax">F</span><span class="plain-syntax">-></span><span class="element-syntax">W</span><span class="plain-syntax">.</span><span class="element-syntax">instruction</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">WRITE</span><span class="plain-syntax">(</span><span class="string-syntax">" }"</span><span class="plain-syntax">);</span>
|
|
<span class="plain-syntax">}</span>
|
|
</pre>
|
|
<p class="commentary firstcommentary"><a id="SP21" class="paragraph-anchor"></a><b>§21. </b>Conversely, the function <a href="3-ic.html#SP21" class="internal">InterInstruction::match</a> takes a line of textual Inter
|
|
source code, uses the regular expressions for each construct to find which one
|
|
is being used, and then calls its <span class="extract"><span class="extract-syntax">CONSTRUCT_READ_MTID</span></span> method to ask for the
|
|
job to be completed.
|
|
</p>
|
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<pre class="definitions code-font"><span class="definition-keyword">enum</span> <span class="constant-syntax">CONSTRUCT_READ_MTID</span>
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</pre>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="identifier-syntax">VOID_METHOD_TYPE</span><span class="plain-syntax">(</span><span class="constant-syntax">CONSTRUCT_READ_MTID</span><span class="plain-syntax">, </span><span class="reserved-syntax">inter_construct</span><span class="plain-syntax"> *</span><span class="identifier-syntax">IC</span><span class="plain-syntax">, </span><span class="reserved-syntax">inter_bookmark</span><span class="plain-syntax"> *,</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">inter_line_parse</span><span class="plain-syntax"> *, </span><span class="reserved-syntax">inter_error_location</span><span class="plain-syntax"> *, </span><span class="reserved-syntax">inter_error_message</span><span class="plain-syntax"> **</span><span class="identifier-syntax">E</span><span class="plain-syntax">)</span>
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<span class="reserved-syntax">inter_error_message</span><span class="plain-syntax"> *</span><span class="function-syntax">InterInstruction::match</span><button class="popup" onclick="togglePopup('usagePopup24')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup24">Usage of <span class="code-font"><span class="function-syntax">InterInstruction::match</span></span>:<br/>Inter in Text Files - <a href="3-iitf.html#SP3">§3</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inter_line_parse</span><span class="plain-syntax"> *</span><span class="identifier-syntax">ilp</span><span class="plain-syntax">, </span><span class="reserved-syntax">inter_error_location</span><span class="plain-syntax"> *</span><span class="identifier-syntax">eloc</span><span class="plain-syntax">,</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">inter_bookmark</span><span class="plain-syntax"> *</span><span class="identifier-syntax">IBM</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">inter_construct</span><span class="plain-syntax"> *</span><span class="identifier-syntax">IC</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">LOOP_OVER</span><span class="plain-syntax">(</span><span class="identifier-syntax">IC</span><span class="plain-syntax">, </span><span class="reserved-syntax">inter_construct</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">IC</span><span class="plain-syntax">-></span><span class="element-syntax">recognition_regexp</span><span class="plain-syntax">[0])</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">Regexp::match</span><span class="plain-syntax">(&</span><span class="identifier-syntax">ilp</span><span class="plain-syntax">-></span><span class="element-syntax">mr</span><span class="plain-syntax">, </span><span class="identifier-syntax">ilp</span><span class="plain-syntax">-></span><span class="element-syntax">line</span><span class="plain-syntax">, </span><span class="identifier-syntax">IC</span><span class="plain-syntax">-></span><span class="element-syntax">recognition_regexp</span><span class="plain-syntax">)) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">inter_error_message</span><span class="plain-syntax"> *</span><span class="identifier-syntax">E</span><span class="plain-syntax"> =</span>
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<span class="plain-syntax"> </span><a href="3-ic.html#SP6" class="function-link"><span class="function-syntax">InterInstruction::check_level_in_package</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">IBM</span><span class="plain-syntax">, </span><span class="identifier-syntax">IC</span><span class="plain-syntax">, </span><span class="identifier-syntax">ilp</span><span class="plain-syntax">-></span><span class="element-syntax">indent_level</span><span class="plain-syntax">, </span><span class="identifier-syntax">eloc</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">E</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">E</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><a href="2-ann.html#SP10" class="function-link"><span class="function-syntax">SymbolAnnotation::nonempty</span></a><span class="plain-syntax">(&(</span><span class="identifier-syntax">ilp</span><span class="plain-syntax">-></span><span class="element-syntax">set</span><span class="plain-syntax">))) && (</span><span class="identifier-syntax">IC</span><span class="plain-syntax">-></span><span class="element-syntax">symbol_defn_field</span><span class="plain-syntax"> < </span><span class="constant-syntax">0</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="3-ie.html#SP4" class="function-link"><span class="function-syntax">InterErrors::plain</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="string-syntax">"__annotations are not allowed"</span><span class="plain-syntax">, </span><span class="identifier-syntax">eloc</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">VOID_METHOD_CALL</span><span class="plain-syntax">(</span><span class="identifier-syntax">IC</span><span class="plain-syntax">, </span><span class="constant-syntax">CONSTRUCT_READ_MTID</span><span class="plain-syntax">, </span><span class="identifier-syntax">IBM</span><span class="plain-syntax">, </span><span class="identifier-syntax">ilp</span><span class="plain-syntax">, </span><span class="identifier-syntax">eloc</span><span class="plain-syntax">, &</span><span class="identifier-syntax">E</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">E</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><a href="3-ie.html#SP4" class="function-link"><span class="function-syntax">InterErrors::plain</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">I</span><span class="string-syntax">"bad inter line"</span><span class="plain-syntax">, </span><span class="identifier-syntax">eloc</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="SP22" class="paragraph-anchor"></a><b>§22. </b>Transposition is an awkward necessity when binary Inter is read in from a file,
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and some references in its instruction bytecode need to be modified: this is
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not the place to explain it. See <a href="3-iibf.html" class="internal">Inter in Binary Files</a>.
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</p>
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<pre class="definitions code-font"><span class="definition-keyword">enum</span> <span class="constant-syntax">CONSTRUCT_TRANSPOSE_MTID</span>
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</pre>
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<pre class="displayed-code all-displayed-code code-font">
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<span class="identifier-syntax">VOID_METHOD_TYPE</span><span class="plain-syntax">(</span><span class="constant-syntax">CONSTRUCT_TRANSPOSE_MTID</span><span class="plain-syntax">, </span><span class="reserved-syntax">inter_construct</span><span class="plain-syntax"> *</span><span class="identifier-syntax">IC</span><span class="plain-syntax">, </span><span class="reserved-syntax">inter_tree_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax">,</span>
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<span class="plain-syntax"> </span><span class="constant-syntax">inter_ti</span><span class="plain-syntax"> *</span><span class="identifier-syntax">grid</span><span class="plain-syntax">, </span><span class="constant-syntax">inter_ti</span><span class="plain-syntax"> </span><span class="identifier-syntax">max</span><span class="plain-syntax">, </span><span class="reserved-syntax">inter_error_message</span><span class="plain-syntax"> **</span><span class="identifier-syntax">E</span><span class="plain-syntax">)</span>
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<span class="reserved-syntax">inter_error_message</span><span class="plain-syntax"> *</span><span class="function-syntax">InterInstruction::transpose_construct</span><button class="popup" onclick="togglePopup('usagePopup25')"><span class="comment-syntax">?</span><span class="popuptext" id="usagePopup25">Usage of <span class="code-font"><span class="function-syntax">InterInstruction::transpose_construct</span></span>:<br/>Inter in Binary Files - <a href="3-iibf.html#SP10_1_5_4">§10.1.5.4</a></span></button><span class="plain-syntax">(</span><span class="reserved-syntax">inter_package</span><span class="plain-syntax"> *</span><span class="identifier-syntax">owner</span><span class="plain-syntax">,</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">inter_tree_node</span><span class="plain-syntax"> *</span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="constant-syntax">inter_ti</span><span class="plain-syntax"> *</span><span class="identifier-syntax">grid</span><span class="plain-syntax">, </span><span class="constant-syntax">inter_ti</span><span class="plain-syntax"> </span><span class="identifier-syntax">max</span><span class="plain-syntax">) {</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">inter_construct</span><span class="plain-syntax"> *</span><span class="identifier-syntax">IC</span><span class="plain-syntax"> = </span><span class="identifier-syntax">NULL</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">inter_error_message</span><span class="plain-syntax"> *</span><span class="identifier-syntax">E</span><span class="plain-syntax"> = </span><a href="3-ic.html#SP14" class="function-link"><span class="function-syntax">InterInstruction::get_construct</span></a><span class="plain-syntax">(</span><span class="identifier-syntax">P</span><span class="plain-syntax">, &</span><span class="identifier-syntax">IC</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">E</span><span class="plain-syntax">) </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">E</span><span class="plain-syntax">;</span>
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<span class="plain-syntax"> </span><span class="identifier-syntax">VOID_METHOD_CALL</span><span class="plain-syntax">(</span><span class="identifier-syntax">IC</span><span class="plain-syntax">, </span><span class="constant-syntax">CONSTRUCT_TRANSPOSE_MTID</span><span class="plain-syntax">, </span><span class="identifier-syntax">P</span><span class="plain-syntax">, </span><span class="identifier-syntax">grid</span><span class="plain-syntax">, </span><span class="identifier-syntax">max</span><span class="plain-syntax">, &</span><span class="identifier-syntax">E</span><span class="plain-syntax">);</span>
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<span class="plain-syntax"> </span><span class="reserved-syntax">return</span><span class="plain-syntax"> </span><span class="identifier-syntax">E</span><span class="plain-syntax">;</span>
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<span class="plain-syntax">}</span>
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</pre>
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