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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<title>Inter Errors</title>
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<!--Weave of 'Inter Errors' generated by 7-->
<ul class="crumbs"><li><a href="../index.html">Home</a></li><li><a href="../compiler.html">Inter Modules</a></li><li><a href="index.html">bytecode</a></li><li><a href="index.html#3">Chapter 3: Language Definition</a></li><li><b>Inter Errors</b></li></ul><p class="purpose">To issue error messages.</p>
<ul class="toc"><li><a href="#SP1">&#167;1. Reading textual inter</a></li></ul><hr class="tocbar">
<p class="inwebparagraph"><a id="SP1"></a><b>&#167;1. Reading textual inter. </b></p>
<pre class="display">
<span class="reserved">typedef</span><span class="plain"> </span><span class="reserved">struct</span><span class="plain"> </span><span class="reserved">inter_error_location</span><span class="plain"> {</span>
<span class="reserved">struct</span><span class="plain"> </span><span class="identifier">text_file_position</span><span class="plain"> *</span><span class="identifier">error_tfp</span><span class="plain">;</span>
<span class="reserved">struct</span><span class="plain"> </span><span class="identifier">text_stream</span><span class="plain"> *</span><span class="identifier">error_line</span><span class="plain">;</span>
<span class="reserved">struct</span><span class="plain"> </span><span class="identifier">filename</span><span class="plain"> *</span><span class="identifier">error_interb</span><span class="plain">;</span>
<span class="identifier">size_t</span><span class="plain"> </span><span class="identifier">error_offset</span><span class="plain">;</span>
<span class="identifier">MEMORY_MANAGEMENT</span>
<span class="plain">} </span><span class="reserved">inter_error_location</span><span class="plain">;</span>
<span class="reserved">inter_error_location</span><span class="plain"> </span><span class="functiontext">Inter::Errors::file_location<button class="popup" onclick="togglePopup('usagePopup289')">...<span class="popuptext" id="usagePopup289">Usage of <b>Inter::Errors::file_location</b>:<br>Inter Nodes - <a href="2-in.html#SP6">&#167;6</a><br>The Warehouse - <a href="2-tw.html#SP3">&#167;3</a><br>Inter in Text Files - <a href="3-iitf.html#SP1">&#167;1</a></span></button></span><span class="plain">(</span><span class="identifier">text_stream</span><span class="plain"> *</span><span class="identifier">line</span><span class="plain">, </span><span class="identifier">text_file_position</span><span class="plain"> *</span><span class="identifier">tfp</span><span class="plain">) {</span>
<span class="reserved">inter_error_location</span><span class="plain"> </span><span class="identifier">eloc</span><span class="plain">;</span>
<span class="identifier">eloc</span><span class="plain">.</span><span class="element">error_tfp</span><span class="plain"> = </span><span class="identifier">tfp</span><span class="plain">;</span>
<span class="identifier">eloc</span><span class="plain">.</span><span class="element">error_line</span><span class="plain"> = </span><span class="identifier">line</span><span class="plain">;</span>
<span class="identifier">eloc</span><span class="plain">.</span><span class="element">error_interb</span><span class="plain"> = </span><span class="identifier">NULL</span><span class="plain">;</span>
<span class="identifier">eloc</span><span class="plain">.</span><span class="element">error_offset</span><span class="plain"> = </span><span class="constant">0</span><span class="plain">;</span>
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">eloc</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="reserved">inter_error_location</span><span class="plain"> </span><span class="functiontext">Inter::Errors::interb_location<button class="popup" onclick="togglePopup('usagePopup290')">...<span class="popuptext" id="usagePopup290">Usage of <b>Inter::Errors::interb_location</b>:<br>The Warehouse - <a href="2-tw.html#SP3">&#167;3</a><br>Inter in Binary Files - <a href="3-iibf.html#SP1">&#167;1</a></span></button></span><span class="plain">(</span><span class="identifier">filename</span><span class="plain"> *</span><span class="identifier">F</span><span class="plain">, </span><span class="identifier">size_t</span><span class="plain"> </span><span class="identifier">at</span><span class="plain">) {</span>
<span class="reserved">inter_error_location</span><span class="plain"> </span><span class="identifier">eloc</span><span class="plain">;</span>
<span class="identifier">eloc</span><span class="plain">.</span><span class="element">error_tfp</span><span class="plain"> = </span><span class="identifier">NULL</span><span class="plain">;</span>
<span class="identifier">eloc</span><span class="plain">.</span><span class="element">error_line</span><span class="plain"> = </span><span class="identifier">NULL</span><span class="plain">;</span>
<span class="identifier">eloc</span><span class="plain">.</span><span class="element">error_interb</span><span class="plain"> = </span><span class="identifier">F</span><span class="plain">;</span>
<span class="identifier">eloc</span><span class="plain">.</span><span class="element">error_offset</span><span class="plain"> = </span><span class="identifier">at</span><span class="plain">;</span>
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">eloc</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="reserved">typedef</span><span class="plain"> </span><span class="reserved">struct</span><span class="plain"> </span><span class="reserved">inter_error_message</span><span class="plain"> {</span>
<span class="reserved">struct</span><span class="plain"> </span><span class="reserved">inter_error_location</span><span class="plain"> </span><span class="identifier">error_at</span><span class="plain">;</span>
<span class="reserved">struct</span><span class="plain"> </span><span class="identifier">text_stream</span><span class="plain"> *</span><span class="identifier">error_body</span><span class="plain">;</span>
<span class="reserved">struct</span><span class="plain"> </span><span class="identifier">text_stream</span><span class="plain"> *</span><span class="identifier">error_quote</span><span class="plain">;</span>
<span class="identifier">MEMORY_MANAGEMENT</span>
<span class="plain">} </span><span class="reserved">inter_error_message</span><span class="plain">;</span>
<span class="reserved">inter_error_message</span><span class="plain"> *</span><span class="functiontext">Inter::Errors::quoted<button class="popup" onclick="togglePopup('usagePopup291')">...<span class="popuptext" id="usagePopup291">Usage of <b>Inter::Errors::quoted</b>:<br>Symbols Tables - <a href="2-st.html#SP10">&#167;10</a><br>Inter in Text Files - <a href="3-iitf.html#SP1">&#167;1</a><br>Inter Data Types - <a href="3-idt.html#SP3">&#167;3</a><br>The Metadata Construct - <a href="4-tmc.html#SP2">&#167;2</a><br>The Pragma Construct - <a href="4-tpc.html#SP2">&#167;2</a><br>The Kind Construct - <a href="4-tkc.html#SP2">&#167;2</a><br>The Constant Construct - <a href="4-tcc2.html#SP2">&#167;2</a><br>The Instance Construct - <a href="4-tic.html#SP2">&#167;2</a><br>The PropertyValue Construct - <a href="4-tpc5.html#SP2">&#167;2</a><br>The Permission Construct - <a href="4-tpc6.html#SP2">&#167;2</a><br>The Primitive Construct - <a href="4-tpc7.html#SP2">&#167;2</a><br>The Inv Construct - <a href="5-tic.html#SP2">&#167;2</a></span></button></span><span class="plain">(</span><span class="identifier">text_stream</span><span class="plain"> *</span><span class="identifier">err</span><span class="plain">, </span><span class="identifier">text_stream</span><span class="plain"> *</span><span class="identifier">quote</span><span class="plain">, </span><span class="reserved">inter_error_location</span><span class="plain"> *</span><span class="identifier">eloc</span><span class="plain">) {</span>
<span class="reserved">inter_error_message</span><span class="plain"> *</span><span class="identifier">iem</span><span class="plain"> = </span><span class="functiontext"><a href="#SP1">Inter::Errors::plain</a></span><span class="plain">(</span><span class="identifier">err</span><span class="plain">, </span><span class="identifier">eloc</span><span class="plain">);</span>
<span class="identifier">iem</span><span class="plain">-&gt;</span><span class="element">error_quote</span><span class="plain"> = </span><span class="identifier">Str::duplicate</span><span class="plain">(</span><span class="identifier">quote</span><span class="plain">);</span>
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">iem</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="reserved">inter_error_message</span><span class="plain"> *</span><span class="functiontext">Inter::Errors::plain<button class="popup" onclick="togglePopup('usagePopup292')">...<span class="popuptext" id="usagePopup292">Usage of <b>Inter::Errors::plain</b>:<br>Definition - <a href="3-dfn.html#SP3">&#167;3</a>, <a href="3-dfn.html#SP4">&#167;4</a><br>Inter in Binary Files - <a href="3-iibf.html#SP3">&#167;3</a><br>The Comment Construct - <a href="4-tcc.html#SP1">&#167;1</a><br>The Symbol Construct - <a href="4-tsc.html#SP1">&#167;1</a><br>The Version Construct - <a href="4-tvc.html#SP2">&#167;2</a><br>The Pragma Construct - <a href="4-tpc.html#SP2">&#167;2</a><br>The Link Construct - <a href="4-tlc.html#SP2">&#167;2</a><br>The Append Construct - <a href="4-tac.html#SP2">&#167;2</a><br>The PackageType Construct - <a href="4-tpc2.html#SP2">&#167;2</a><br>The Kind Construct - <a href="4-tkc.html#SP2">&#167;2</a><br>The Constant Construct - <a href="4-tcc2.html#SP2">&#167;2</a><br>The Response Construct - <a href="4-trc.html#SP2">&#167;2</a><br>The Instance Construct - <a href="4-tic.html#SP2">&#167;2</a><br>The PropertyValue Construct - <a href="4-tpc5.html#SP2">&#167;2</a><br>The Permission Construct - <a href="4-tpc6.html#SP2">&#167;2</a><br>The Primitive Construct - <a href="4-tpc7.html#SP2">&#167;2</a><br>The Label Construct - <a href="5-tlc.html#SP2">&#167;2</a><br>The Local Construct - <a href="5-tlc2.html#SP2">&#167;2</a><br>The Inv Construct - <a href="5-tic.html#SP2">&#167;2</a><br>The Ref Construct - <a href="5-trc.html#SP2">&#167;2</a><br>The Val Construct - <a href="5-tvc.html#SP2">&#167;2</a><br>The Lab Construct - <a href="5-tlc3.html#SP2">&#167;2</a><br>The Code Construct - <a href="5-tcc.html#SP2">&#167;2</a><br>The Evaluation Construct - <a href="5-tec.html#SP2">&#167;2</a><br>The Reference Construct - <a href="5-trc2.html#SP2">&#167;2</a><br>The Cast Construct - <a href="5-tcc2.html#SP2">&#167;2</a><br>The Splat Construct - <a href="5-tsc.html#SP2">&#167;2</a></span></button></span><span class="plain">(</span><span class="identifier">text_stream</span><span class="plain"> *</span><span class="identifier">err</span><span class="plain">, </span><span class="reserved">inter_error_location</span><span class="plain"> *</span><span class="identifier">eloc</span><span class="plain">) {</span>
<span class="reserved">inter_error_message</span><span class="plain"> *</span><span class="identifier">iem</span><span class="plain"> = </span><span class="identifier">CREATE</span><span class="plain">(</span><span class="reserved">inter_error_message</span><span class="plain">);</span>
<span class="identifier">iem</span><span class="plain">-&gt;</span><span class="element">error_body</span><span class="plain"> = </span><span class="identifier">Str::duplicate</span><span class="plain">(</span><span class="identifier">err</span><span class="plain">);</span>
<span class="identifier">iem</span><span class="plain">-&gt;</span><span class="element">error_quote</span><span class="plain"> = </span><span class="identifier">NULL</span><span class="plain">;</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">eloc</span><span class="plain">) </span><span class="identifier">iem</span><span class="plain">-&gt;</span><span class="element">error_at</span><span class="plain"> = *</span><span class="identifier">eloc</span><span class="plain">;</span>
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">iem</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="reserved">void</span><span class="plain"> </span><span class="functiontext">Inter::Errors::issue<button class="popup" onclick="togglePopup('usagePopup293')">...<span class="popuptext" id="usagePopup293">Usage of <b>Inter::Errors::issue</b>:<br>Symbols Tables - <a href="2-st.html#SP10">&#167;10</a><br>Transmigration - <a href="2-trn.html#SP3_1_1">&#167;3.1.1</a>, <a href="2-trn.html#SP3_2_1">&#167;3.2.1</a><br>Inter in Binary Files - <a href="3-iibf.html#SP1_6">&#167;1.6</a>, <a href="3-iibf.html#SP3">&#167;3</a><br>Inter in Text Files - <a href="3-iitf.html#SP1">&#167;1</a>, <a href="3-iitf.html#SP2">&#167;2</a></span></button></span><span class="plain">(</span><span class="reserved">inter_error_message</span><span class="plain"> *</span><span class="identifier">iem</span><span class="plain">) {</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">iem</span><span class="plain"> == </span><span class="identifier">NULL</span><span class="plain">) </span><span class="identifier">internal_error</span><span class="plain">(</span><span class="string">"no error to issue"</span><span class="plain">);</span>
<span class="functiontext"><a href="#SP1">Inter::Errors::issue_to</a></span><span class="plain">(</span><span class="identifier">STDERR</span><span class="plain">, </span><span class="identifier">iem</span><span class="plain">);</span>
<span class="plain">#</span><span class="identifier">ifdef</span><span class="plain"> </span><span class="identifier">CORE_MODULE</span>
<span class="identifier">LOG</span><span class="plain">(</span><span class="string">"Inter error:\n"</span><span class="plain">);</span>
<span class="functiontext"><a href="#SP1">Inter::Errors::issue_to</a></span><span class="plain">(</span><span class="identifier">DL</span><span class="plain">, </span><span class="identifier">iem</span><span class="plain">);</span>
<span class="plain">#</span><span class="identifier">endif</span>
<span class="plain">}</span>
<span class="reserved">void</span><span class="plain"> </span><span class="functiontext">Inter::Errors::issue_to<button class="popup" onclick="togglePopup('usagePopup294')">...<span class="popuptext" id="usagePopup294">Usage of <b>Inter::Errors::issue_to</b>:<br>none</span></button></span><span class="plain">(</span><span class="identifier">OUTPUT_STREAM</span><span class="plain">, </span><span class="reserved">inter_error_message</span><span class="plain"> *</span><span class="identifier">iem</span><span class="plain">) {</span>
<span class="identifier">TEMPORARY_TEXT</span><span class="plain">(</span><span class="identifier">E</span><span class="plain">);</span>
<span class="identifier">WRITE_TO</span><span class="plain">(</span><span class="identifier">E</span><span class="plain">, </span><span class="string">"%S"</span><span class="plain">, </span><span class="identifier">iem</span><span class="plain">-&gt;</span><span class="element">error_body</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">iem</span><span class="plain">-&gt;</span><span class="element">error_quote</span><span class="plain">)</span>
<span class="identifier">WRITE_TO</span><span class="plain">(</span><span class="identifier">E</span><span class="plain">, </span><span class="string">": '%S'"</span><span class="plain">, </span><span class="identifier">iem</span><span class="plain">-&gt;</span><span class="element">error_quote</span><span class="plain">);</span>
<span class="reserved">inter_error_location</span><span class="plain"> </span><span class="identifier">eloc</span><span class="plain"> = </span><span class="identifier">iem</span><span class="plain">-&gt;</span><span class="identifier">error_at</span><span class="plain">;</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">eloc</span><span class="plain">.</span><span class="element">error_interb</span><span class="plain">) {</span>
<span class="identifier">WRITE</span><span class="plain">(</span><span class="string">"%f, position %08x: "</span><span class="plain">, </span><span class="identifier">eloc</span><span class="plain">.</span><span class="element">error_interb</span><span class="plain">, </span><span class="identifier">eloc</span><span class="plain">.</span><span class="element">error_offset</span><span class="plain">);</span>
<span class="plain">}</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">eloc</span><span class="plain">.</span><span class="element">error_tfp</span><span class="plain">)</span>
<span class="identifier">Errors::in_text_file_S</span><span class="plain">(</span><span class="identifier">E</span><span class="plain">, </span><span class="identifier">eloc</span><span class="plain">.</span><span class="element">error_tfp</span><span class="plain">);</span>
<span class="reserved">else</span>
<span class="identifier">Errors::in_text_file_S</span><span class="plain">(</span><span class="identifier">E</span><span class="plain">, </span><span class="identifier">NULL</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">eloc</span><span class="plain">.</span><span class="element">error_line</span><span class="plain">)</span>
<span class="identifier">WRITE</span><span class="plain">(</span><span class="string">"&gt;--&gt; %S\n"</span><span class="plain">, </span><span class="identifier">eloc</span><span class="plain">.</span><span class="element">error_line</span><span class="plain">);</span>
<span class="identifier">DISCARD_TEXT</span><span class="plain">(</span><span class="identifier">E</span><span class="plain">);</span>
<span class="plain">}</span>
<span class="reserved">inter_error_message</span><span class="plain"> *</span><span class="functiontext">Inter::Errors::gather_first<button class="popup" onclick="togglePopup('usagePopup295')">...<span class="popuptext" id="usagePopup295">Usage of <b>Inter::Errors::gather_first</b>:<br>none</span></button></span><span class="plain">(</span><span class="reserved">inter_error_message</span><span class="plain"> *</span><span class="identifier">E</span><span class="plain">, </span><span class="reserved">inter_error_message</span><span class="plain"> *</span><span class="identifier">F</span><span class="plain">) {</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">E</span><span class="plain">) </span><span class="reserved">return</span><span class="plain"> </span><span class="identifier">E</span><span class="plain">;</span>
<span class="reserved">return</span><span class="plain"> </span><span class="identifier">F</span><span class="plain">;</span>
<span class="plain">}</span>
</pre>
<p class="inwebparagraph"></p>
<p class="endnote">The structure inter_error_location is accessed in 2/tw, 3/iibf and here.</p>
<p class="endnote">The structure inter_error_message is accessed in 2/in and here.</p>
<p class="inwebparagraph"><a id="SP2"></a><b>&#167;2. </b></p>
<pre class="display">
<span class="reserved">void</span><span class="plain"> </span><span class="functiontext">Inter::Errors::backtrace<button class="popup" onclick="togglePopup('usagePopup296')">...<span class="popuptext" id="usagePopup296">Usage of <b>Inter::Errors::backtrace</b>:<br>Definition - <a href="3-dfn.html#SP4">&#167;4</a></span></button></span><span class="plain">(</span><span class="identifier">OUTPUT_STREAM</span><span class="plain">, </span><span class="reserved">inter_tree_node</span><span class="plain"> *</span><span class="identifier">F</span><span class="plain">) {</span>
<span class="reserved">inter_tree_node</span><span class="plain"> *</span><span class="identifier">X</span><span class="plain"> = </span><span class="identifier">F</span><span class="plain">;</span>
<span class="reserved">int</span><span class="plain"> </span><span class="identifier">n</span><span class="plain"> = </span><span class="constant">0</span><span class="plain">;</span>
<span class="reserved">while</span><span class="plain"> (</span><span class="identifier">TRUE</span><span class="plain">) {</span>
<span class="identifier">X</span><span class="plain"> = </span><span class="functiontext"><a href="2-it.html#SP2">Inter::Tree::parent</a></span><span class="plain">(</span><span class="identifier">X</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">X</span><span class="plain"> == </span><span class="identifier">NULL</span><span class="plain">) </span><span class="reserved">break</span><span class="plain">;</span>
<span class="identifier">n</span><span class="plain">++;</span>
<span class="plain">}</span>
<span class="reserved">for</span><span class="plain"> (</span><span class="reserved">int</span><span class="plain"> </span><span class="identifier">i</span><span class="plain"> = </span><span class="identifier">n</span><span class="plain">; </span><span class="identifier">i</span><span class="plain"> &gt;= </span><span class="constant">0</span><span class="plain">; </span><span class="identifier">i</span><span class="plain">--) {</span>
<span class="reserved">inter_tree_node</span><span class="plain"> *</span><span class="identifier">X</span><span class="plain"> = </span><span class="identifier">F</span><span class="plain">;</span>
<span class="reserved">int</span><span class="plain"> </span><span class="identifier">m</span><span class="plain"> = </span><span class="constant">0</span><span class="plain">;</span>
<span class="reserved">while</span><span class="plain"> (</span><span class="identifier">TRUE</span><span class="plain">) {</span>
<span class="reserved">inter_tree_node</span><span class="plain"> *</span><span class="identifier">Y</span><span class="plain"> = </span><span class="functiontext"><a href="2-it.html#SP2">Inter::Tree::parent</a></span><span class="plain">(</span><span class="identifier">X</span><span class="plain">);</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">Y</span><span class="plain"> == </span><span class="identifier">NULL</span><span class="plain">) </span><span class="reserved">break</span><span class="plain">;</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">m</span><span class="plain"> == </span><span class="identifier">i</span><span class="plain">) {</span>
<span class="identifier">WRITE</span><span class="plain">(</span><span class="string">"%2d. "</span><span class="plain">, (</span><span class="identifier">n</span><span class="plain">-</span><span class="identifier">i</span><span class="plain">));</span>
<span class="reserved">if</span><span class="plain"> (</span><span class="identifier">i</span><span class="plain"> == </span><span class="constant">0</span><span class="plain">) </span><span class="identifier">WRITE</span><span class="plain">(</span><span class="string">"** "</span><span class="plain">); </span><span class="reserved">else</span><span class="plain"> </span><span class="identifier">WRITE</span><span class="plain">(</span><span class="string">" "</span><span class="plain">);</span>
<span class="functiontext"><a href="3-dfn.html#SP4">Inter::Defn::write_construct_text_allowing_nop</a></span><span class="plain">(</span><span class="identifier">OUT</span><span class="plain">, </span><span class="identifier">X</span><span class="plain">);</span>
<span class="reserved">break</span><span class="plain">;</span>
<span class="plain">}</span>
<span class="identifier">X</span><span class="plain"> = </span><span class="identifier">Y</span><span class="plain">;</span>
<span class="identifier">m</span><span class="plain">++;</span>
<span class="plain">}</span>
<span class="plain">}</span>
<span class="identifier">LOOP_THROUGH_INTER_CHILDREN</span><span class="plain">(</span><span class="identifier">C</span><span class="plain">, </span><span class="identifier">F</span><span class="plain">) {</span>
<span class="identifier">WRITE</span><span class="plain">(</span><span class="string">"%2d. "</span><span class="plain">, (</span><span class="identifier">n</span><span class="plain">+1));</span>
<span class="functiontext"><a href="3-dfn.html#SP4">Inter::Defn::write_construct_text_allowing_nop</a></span><span class="plain">(</span><span class="identifier">OUT</span><span class="plain">, </span><span class="identifier">C</span><span class="plain">);</span>
<span class="plain">}</span>
<span class="plain">}</span>
</pre>
<p class="inwebparagraph"></p>
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