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Diffstat (limited to 'html/053recipe_header.cc.html')
-rw-r--r--html/053recipe_header.cc.html66
1 files changed, 33 insertions, 33 deletions
diff --git a/html/053recipe_header.cc.html b/html/053recipe_header.cc.html
index cfae8979..d54d2db5 100644
--- a/html/053recipe_header.cc.html
+++ b/html/053recipe_header.cc.html
@@ -90,7 +90,7 @@ if ('onhashchange' in window) {
 <span id="L24" class="LineNr"> 24 </span>
 <span id="L25" class="LineNr"> 25 </span><span class="Delimiter">:(before &quot;End Recipe Refinements&quot;)</span>
 <span id="L26" class="LineNr"> 26 </span><span class="Normal">if</span> <span class="Delimiter">(</span>in<span class="Delimiter">.</span>peek<span class="Delimiter">()</span> != <span class="Constant">'['</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L27" class="LineNr"> 27 </span>  <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9999</span><span class="Delimiter">,</span> <span class="Constant">&quot;parse&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;recipe has a header; parsing&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L27" class="LineNr"> 27 </span>  <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9999</span><span class="Delimiter">,</span> <span class="Constant">&quot;parse&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;recipe has a header; parsing&quot;</span> &lt;&lt; <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
 <span id="L28" class="LineNr"> 28 </span>  <a href='053recipe_header.cc.html#L32'>load_recipe_header</a><span class="Delimiter">(</span>in<span class="Delimiter">,</span> result<span class="Delimiter">);</span>
 <span id="L29" class="LineNr"> 29 </span><span class="Delimiter">}</span>
 <span id="L30" class="LineNr"> 30 </span>
@@ -101,25 +101,25 @@ if ('onhashchange' in window) {
 <span id="L35" class="LineNr"> 35 </span>  <span class="Conceal">¦</span> string s = <a href='011load.cc.html#L167'>next_word</a><span class="Delimiter">(</span>in<span class="Delimiter">);</span>
 <span id="L36" class="LineNr"> 36 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>s<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span>
 <span id="L37" class="LineNr"> 37 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> assert<span class="Delimiter">(</span>!has_data<span class="Delimiter">(</span>in<span class="Delimiter">));</span>
-<span id="L38" class="LineNr"> 38 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;incomplete <a href='010vm.cc.html#L19'>recipe</a> header at <a href='003trace.cc.html#L185'>end</a> of file (0)</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L38" class="LineNr"> 38 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;incomplete <a href='010vm.cc.html#L19'>recipe</a> header at <a href='003trace.cc.html#L197'>end</a> of file (0)</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
 <span id="L39" class="LineNr"> 39 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
 <span id="L40" class="LineNr"> 40 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L41" class="LineNr"> 41 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>s == <span class="Constant">&quot;&lt;-&quot;</span><span class="Delimiter">)</span>
-<span id="L42" class="LineNr"> 42 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;recipe &quot;</span> &lt;&lt; result<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot; should say '-&gt;' and not '&lt;-'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L42" class="LineNr"> 42 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;recipe &quot;</span> &lt;&lt; result<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot; should say '-&gt;' and not '&lt;-'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
 <span id="L43" class="LineNr"> 43 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>s == <span class="Constant">&quot;-&gt;&quot;</span><span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L44" class="LineNr"> 44 </span>  <span class="Conceal">¦</span> result<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>reagent<span class="Delimiter">(</span>s<span class="Delimiter">));</span>
-<span id="L45" class="LineNr"> 45 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9999</span><span class="Delimiter">,</span> <span class="Constant">&quot;parse&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;header ingredient: &quot;</span> &lt;&lt; result<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>back<span class="Delimiter">().</span>original_string &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L45" class="LineNr"> 45 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9999</span><span class="Delimiter">,</span> <span class="Constant">&quot;parse&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;header ingredient: &quot;</span> &lt;&lt; result<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>back<span class="Delimiter">().</span>original_string &lt;&lt; <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
 <span id="L46" class="LineNr"> 46 </span>  <span class="Conceal">¦</span> skip_whitespace_but_not_newline<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
 <span id="L47" class="LineNr"> 47 </span>  <span class="Delimiter">}</span>
 <span id="L48" class="LineNr"> 48 </span>  <span class="Normal">while</span> <span class="Delimiter">(</span><a href='001help.cc.html#L238'>has_data</a><span class="Delimiter">(</span>in<span class="Delimiter">)</span> &amp;&amp; in<span class="Delimiter">.</span>peek<span class="Delimiter">()</span> != <span class="Constant">'['</span> &amp;&amp; in<span class="Delimiter">.</span>peek<span class="Delimiter">()</span> != <span class="cSpecial">'\n'</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L49" class="LineNr"> 49 </span>  <span class="Conceal">¦</span> string s = <a href='011load.cc.html#L167'>next_word</a><span class="Delimiter">(</span>in<span class="Delimiter">);</span>
 <span id="L50" class="LineNr"> 50 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>s<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span>
 <span id="L51" class="LineNr"> 51 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> assert<span class="Delimiter">(</span>!has_data<span class="Delimiter">(</span>in<span class="Delimiter">));</span>
-<span id="L52" class="LineNr"> 52 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;incomplete <a href='010vm.cc.html#L19'>recipe</a> header at <a href='003trace.cc.html#L185'>end</a> of file (1)</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L52" class="LineNr"> 52 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;incomplete <a href='010vm.cc.html#L19'>recipe</a> header at <a href='003trace.cc.html#L197'>end</a> of file (1)</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
 <span id="L53" class="LineNr"> 53 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
 <span id="L54" class="LineNr"> 54 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L55" class="LineNr"> 55 </span>  <span class="Conceal">¦</span> result<span class="Delimiter">.</span>products<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>reagent<span class="Delimiter">(</span>s<span class="Delimiter">));</span>
-<span id="L56" class="LineNr"> 56 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9999</span><span class="Delimiter">,</span> <span class="Constant">&quot;parse&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;header product: &quot;</span> &lt;&lt; result<span class="Delimiter">.</span>products<span class="Delimiter">.</span>back<span class="Delimiter">().</span>original_string &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L56" class="LineNr"> 56 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9999</span><span class="Delimiter">,</span> <span class="Constant">&quot;parse&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;header product: &quot;</span> &lt;&lt; result<span class="Delimiter">.</span>products<span class="Delimiter">.</span>back<span class="Delimiter">().</span>original_string &lt;&lt; <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
 <span id="L57" class="LineNr"> 57 </span>  <span class="Conceal">¦</span> skip_whitespace_but_not_newline<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
 <span id="L58" class="LineNr"> 58 </span>  <span class="Delimiter">}</span>
 <span id="L59" class="LineNr"> 59 </span>  <span class="Comment">// End Load Recipe Header(result)</span>
@@ -215,7 +215,7 @@ if ('onhashchange' in window) {
 <span id="L149" class="LineNr">149 </span>  <span class="Delimiter">}</span>
 <span id="L150" class="LineNr">150 </span><span class="Delimiter">}</span>
 <span id="L151" class="LineNr">151 </span><span class="Normal">if</span> <span class="Delimiter">(</span>result<span class="Delimiter">.</span>has_header<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L152" class="LineNr">152 </span>  <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9999</span><span class="Delimiter">,</span> <span class="Constant">&quot;parse&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;recipe &quot;</span> &lt;&lt; result<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot; has a header&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L152" class="LineNr">152 </span>  <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9999</span><span class="Delimiter">,</span> <span class="Constant">&quot;parse&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;recipe &quot;</span> &lt;&lt; result<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot; has a header&quot;</span> &lt;&lt; <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
 <span id="L153" class="LineNr">153 </span><span class="Delimiter">}</span>
 <span id="L154" class="LineNr">154 </span>
 <span id="L155" class="LineNr">155 </span><span class="Comment">//: Support type abbreviations in headers.</span>
@@ -254,7 +254,7 @@ if ('onhashchange' in window) {
 <span id="L188" class="LineNr">188 </span>  <span class="Delimiter">}</span>
 <span id="L189" class="LineNr">189 </span><span class="Delimiter">}</span>
 <span id="L190" class="LineNr">190 </span><span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">.</span>name == <span class="Constant">&quot;next-ingredient-without-typechecking&quot;</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L191" class="LineNr">191 </span>  <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>result<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;never call 'next-ingredient-without-typechecking' directly</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L191" class="LineNr">191 </span>  <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>result<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;never call 'next-ingredient-without-typechecking' directly</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
 <span id="L192" class="LineNr">192 </span>  curr<span class="Delimiter">.</span><a href='050scenario.cc.html#L60'>clear</a><span class="Delimiter">();</span>
 <span id="L193" class="LineNr">193 </span><span class="Delimiter">}</span>
 <span id="L194" class="LineNr">194 </span>
@@ -299,7 +299,7 @@ if ('onhashchange' in window) {
 <span id="L233" class="LineNr">233 </span>
 <span id="L234" class="LineNr">234 </span><span class="Delimiter">:(after &quot;use-before-set Error&quot;)</span>
 <span id="L235" class="LineNr">235 </span><span class="Normal">if</span> <span class="Delimiter">(</span>is_present_in_ingredients<span class="Delimiter">(</span>caller<span class="Delimiter">,</span> ingredient<span class="Delimiter">.</span>name<span class="Delimiter">))</span>
-<span id="L236" class="LineNr">236 </span>  <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;  did you forget 'load-ingredients'?</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L236" class="LineNr">236 </span>  <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;  did you forget 'load-ingredients'?</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
 <span id="L237" class="LineNr">237 </span>
 <span id="L238" class="LineNr">238 </span><span class="Delimiter">:(scenario load_ingredients_missing_error_2)</span>
 <span id="L239" class="LineNr">239 </span><span class="Special">% Hide_errors = true;</span>
@@ -312,7 +312,7 @@ if ('onhashchange' in window) {
 <span id="L246" class="LineNr">246 </span>
 <span id="L247" class="LineNr">247 </span><span class="Delimiter">:(after &quot;missing-type Error 1&quot;)</span>
 <span id="L248" class="LineNr">248 </span><span class="Normal">if</span> <span class="Delimiter">(</span>is_present_in_ingredients<span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> get<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> recipe_name<span class="Delimiter">)),</span> x<span class="Delimiter">.</span>name<span class="Delimiter">))</span>
-<span id="L249" class="LineNr">249 </span>  <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;  did you forget 'load-ingredients'?</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L249" class="LineNr">249 </span>  <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;  did you forget 'load-ingredients'?</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
 <span id="L250" class="LineNr">250 </span>
 <span id="L251" class="LineNr">251 </span><span class="Delimiter">:(code)</span>
 <span id="L252" class="LineNr">252 </span><span class="Normal">bool</span> is_present_in_ingredients<span class="Delimiter">(</span><span class="Normal">const</span> recipe&amp; callee<span class="Delimiter">,</span> <span class="Normal">const</span> string&amp; ingredient_name<span class="Delimiter">)</span> <span class="Delimiter">{</span>
@@ -354,7 +354,7 @@ if ('onhashchange' in window) {
 <span id="L288" class="LineNr">288 </span><span class="Delimiter">:(code)</span>
 <span id="L289" class="LineNr">289 </span><span class="Normal">void</span> check_calls_against_header<span class="Delimiter">(</span><span class="Normal">const</span> <a href='010vm.cc.html#L14'>recipe_ordinal</a> r<span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L290" class="LineNr">290 </span>  <span class="Normal">const</span> recipe&amp; caller = get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">);</span>
-<span id="L291" class="LineNr">291 </span>  <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9991</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;--- type-check calls inside <a href='010vm.cc.html#L19'>recipe</a> &quot;</span> &lt;&lt; caller<span class="Delimiter">.</span>name &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L291" class="LineNr">291 </span>  <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9991</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;--- type-check calls inside <a href='010vm.cc.html#L19'>recipe</a> &quot;</span> &lt;&lt; caller<span class="Delimiter">.</span>name &lt;&lt; <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
 <span id="L292" class="LineNr">292 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>steps<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L293" class="LineNr">293 </span>  <span class="Conceal">¦</span> <span class="Normal">const</span> instruction&amp; inst = caller<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
 <span id="L294" class="LineNr">294 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>operation &lt; <a href='010vm.cc.html#L191'>MAX_PRIMITIVE_RECIPES</a><span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
@@ -363,16 +363,16 @@ if ('onhashchange' in window) {
 <span id="L297" class="LineNr">297 </span>  <span class="Conceal">¦</span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">long</span> <span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; min<span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">),</span> <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>callee<span class="Delimiter">.</span>ingredients<span class="Delimiter">));</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L298" class="LineNr">298 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Comment">// ingredients coerced from call to callee</span>
 <span id="L299" class="LineNr">299 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>!types_coercible<span class="Delimiter">(</span>callee<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">),</span> inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L300" class="LineNr">300 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;ingredient &quot;</span> &lt;&lt; i &lt;&lt; <span class="Constant">&quot; has the wrong type at '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
-<span id="L301" class="LineNr">301 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;  ['&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>callee<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>type<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;' vs '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>type<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;']</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L300" class="LineNr">300 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;ingredient &quot;</span> &lt;&lt; i &lt;&lt; <span class="Constant">&quot; has the wrong type at '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
+<span id="L301" class="LineNr">301 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;  ['&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>callee<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>type<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;' vs '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>type<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;']</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
 <span id="L302" class="LineNr">302 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L303" class="LineNr">303 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L304" class="LineNr">304 </span>  <span class="Conceal">¦</span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">long</span> <span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; min<span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">),</span> <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>callee<span class="Delimiter">.</span>products<span class="Delimiter">));</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L305" class="LineNr">305 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>is_dummy<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
 <span id="L306" class="LineNr">306 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Comment">// products coerced from callee to call</span>
 <span id="L307" class="LineNr">307 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>!types_coercible<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">),</span> callee<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L308" class="LineNr">308 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;product &quot;</span> &lt;&lt; i &lt;&lt; <span class="Constant">&quot; has the wrong type at '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
-<span id="L309" class="LineNr">309 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;  ['&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>type<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;' vs '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>callee<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>type<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;']</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L308" class="LineNr">308 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;product &quot;</span> &lt;&lt; i &lt;&lt; <span class="Constant">&quot; has the wrong type at '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
+<span id="L309" class="LineNr">309 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;  ['&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>type<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;' vs '&quot;</span> &lt;&lt; to_string<span class="Delimiter">(</span>callee<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>type<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;']</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
 <span id="L310" class="LineNr">310 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L311" class="LineNr">311 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L312" class="LineNr">312 </span>  <span class="Delimiter">}</span>
@@ -398,17 +398,17 @@ if ('onhashchange' in window) {
 <span id="L332" class="LineNr">332 </span><span class="Normal">void</span> check_return_instructions_against_header<span class="Delimiter">(</span><span class="Normal">const</span> <a href='010vm.cc.html#L14'>recipe_ordinal</a> r<span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L333" class="LineNr">333 </span>  <span class="Normal">const</span> recipe&amp; caller_recipe = get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">);</span>
 <span id="L334" class="LineNr">334 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!caller_recipe<span class="Delimiter">.</span>has_header<span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
-<span id="L335" class="LineNr">335 </span>  <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9991</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;--- checking return instructions against header for &quot;</span> &lt;&lt; caller_recipe<span class="Delimiter">.</span>name &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L335" class="LineNr">335 </span>  <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9991</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;--- checking return instructions against header for &quot;</span> &lt;&lt; caller_recipe<span class="Delimiter">.</span>name &lt;&lt; <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
 <span id="L336" class="LineNr">336 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>steps<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L337" class="LineNr">337 </span>  <span class="Conceal">¦</span> <span class="Normal">const</span> instruction&amp; inst = caller_recipe<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
 <span id="L338" class="LineNr">338 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>name != <span class="Constant">&quot;reply&quot;</span> &amp;&amp; inst<span class="Delimiter">.</span>name != <span class="Constant">&quot;return&quot;</span><span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
 <span id="L339" class="LineNr">339 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>products<span class="Delimiter">)</span> != <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">))</span> <span class="Delimiter">{</span>
-<span id="L340" class="LineNr">340 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;replied with the wrong number of products at '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L340" class="LineNr">340 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;replied with the wrong number of products at '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
 <span id="L341" class="LineNr">341 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
 <span id="L342" class="LineNr">342 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L343" class="LineNr">343 </span>  <span class="Conceal">¦</span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>products<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L344" class="LineNr">344 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>!types_match<span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">),</span> inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)))</span>
-<span id="L345" class="LineNr">345 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;replied with the wrong type at '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L345" class="LineNr">345 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;replied with the wrong type at '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
 <span id="L346" class="LineNr">346 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L347" class="LineNr">347 </span>  <span class="Delimiter">}</span>
 <span id="L348" class="LineNr">348 </span><span class="Delimiter">}</span>
@@ -469,10 +469,10 @@ if ('onhashchange' in window) {
 <span id="L403" class="LineNr">403 </span><span class="Normal">void</span> check_header_ingredients<span class="Delimiter">(</span><span class="Normal">const</span> <a href='010vm.cc.html#L14'>recipe_ordinal</a> r<span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L404" class="LineNr">404 </span>  recipe&amp; caller_recipe = get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">);</span>
 <span id="L405" class="LineNr">405 </span>  caller_recipe<span class="Delimiter">.</span>ingredient_index<span class="Delimiter">.</span><a href='050scenario.cc.html#L60'>clear</a><span class="Delimiter">();</span>
-<span id="L406" class="LineNr">406 </span>  <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9991</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;--- checking return instructions against header for &quot;</span> &lt;&lt; caller_recipe<span class="Delimiter">.</span>name &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L406" class="LineNr">406 </span>  <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9991</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;--- checking return instructions against header for &quot;</span> &lt;&lt; caller_recipe<span class="Delimiter">.</span>name &lt;&lt; <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
 <span id="L407" class="LineNr">407 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>ingredients<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L408" class="LineNr">408 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>type == <span class="Constant">NULL</span><span class="Delimiter">)</span>
-<span id="L409" class="LineNr">409 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;ingredient '&quot;</span> &lt;&lt; caller_recipe<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name &lt;&lt; <span class="Constant">&quot;' has no type</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L409" class="LineNr">409 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;ingredient '&quot;</span> &lt;&lt; caller_recipe<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name &lt;&lt; <span class="Constant">&quot;' has no type</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
 <span id="L410" class="LineNr">410 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>contains_key<span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>ingredient_index<span class="Delimiter">,</span> caller_recipe<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name<span class="Delimiter">))</span>
 <span id="L411" class="LineNr">411 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'&quot;</span> &lt;&lt; caller_recipe<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name &lt;&lt; <span class="Constant">&quot;' can't repeat in the ingredients</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
 <span id="L412" class="LineNr">412 </span>  <span class="Conceal">¦</span> <a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>ingredient_index<span class="Delimiter">,</span> caller_recipe<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name<span class="Delimiter">,</span> i<span class="Delimiter">);</span>
@@ -501,37 +501,37 @@ if ('onhashchange' in window) {
 <span id="L435" class="LineNr">435 </span><span class="Normal">void</span> deduce_types_from_header<span class="Delimiter">(</span><span class="Normal">const</span> <a href='010vm.cc.html#L14'>recipe_ordinal</a> r<span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L436" class="LineNr">436 </span>  recipe&amp; caller_recipe = get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">);</span>
 <span id="L437" class="LineNr">437 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
-<span id="L438" class="LineNr">438 </span>  <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9991</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;--- deduce types from header for &quot;</span> &lt;&lt; caller_recipe<span class="Delimiter">.</span>name &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L438" class="LineNr">438 </span>  <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9991</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;--- deduce types from header for &quot;</span> &lt;&lt; caller_recipe<span class="Delimiter">.</span>name &lt;&lt; <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
 <span id="L439" class="LineNr">439 </span>  map&lt;string<span class="Delimiter">,</span> <span class="Normal">const</span> type_tree*&gt; header_type<span class="Delimiter">;</span>
 <span id="L440" class="LineNr">440 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>ingredients<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L441" class="LineNr">441 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>!caller_recipe<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>type<span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>  <span class="Comment">// error handled elsewhere</span>
 <span id="L442" class="LineNr">442 </span>  <span class="Conceal">¦</span> <a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>header_type<span class="Delimiter">,</span> caller_recipe<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name<span class="Delimiter">,</span> caller_recipe<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>type<span class="Delimiter">);</span>
-<span id="L443" class="LineNr">443 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9993</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;type of &quot;</span> &lt;&lt; caller_recipe<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name &lt;&lt; <span class="Constant">&quot; is &quot;</span> &lt;&lt; names_to_string<span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>type<span class="Delimiter">)</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L443" class="LineNr">443 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9993</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;type of &quot;</span> &lt;&lt; caller_recipe<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name &lt;&lt; <span class="Constant">&quot; is &quot;</span> &lt;&lt; names_to_string<span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>type<span class="Delimiter">)</span> &lt;&lt; <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
 <span id="L444" class="LineNr">444 </span>  <span class="Delimiter">}</span>
 <span id="L445" class="LineNr">445 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>products<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L446" class="LineNr">446 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>!caller_recipe<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>type<span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>  <span class="Comment">// error handled elsewhere</span>
 <span id="L447" class="LineNr">447 </span>  <span class="Conceal">¦</span> <a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>header_type<span class="Delimiter">,</span> caller_recipe<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name<span class="Delimiter">,</span> caller_recipe<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>type<span class="Delimiter">);</span>
-<span id="L448" class="LineNr">448 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9993</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;type of &quot;</span> &lt;&lt; caller_recipe<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name &lt;&lt; <span class="Constant">&quot; is &quot;</span> &lt;&lt; names_to_string<span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>type<span class="Delimiter">)</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L448" class="LineNr">448 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9993</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;type of &quot;</span> &lt;&lt; caller_recipe<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name &lt;&lt; <span class="Constant">&quot; is &quot;</span> &lt;&lt; names_to_string<span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>type<span class="Delimiter">)</span> &lt;&lt; <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
 <span id="L449" class="LineNr">449 </span>  <span class="Delimiter">}</span>
 <span id="L450" class="LineNr">450 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>steps<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L451" class="LineNr">451 </span>  <span class="Conceal">¦</span> instruction&amp; inst = caller_recipe<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
-<span id="L452" class="LineNr">452 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9992</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;instruction: &quot;</span> &lt;&lt; <a href='028call_return.cc.html#L158'>to_string</a><span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L452" class="LineNr">452 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9992</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;instruction: &quot;</span> &lt;&lt; <a href='028call_return.cc.html#L158'>to_string</a><span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
 <span id="L453" class="LineNr">453 </span>  <span class="Conceal">¦</span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L454" class="LineNr">454 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>type<span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
-<span id="L455" class="LineNr">455 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>header_type<span class="Delimiter">.</span>find<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name<span class="Delimiter">)</span> == header_type<span class="Delimiter">.</span><a href='003trace.cc.html#L185'>end</a><span class="Delimiter">())</span>
+<span id="L455" class="LineNr">455 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>header_type<span class="Delimiter">.</span>find<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name<span class="Delimiter">)</span> == header_type<span class="Delimiter">.</span><a href='003trace.cc.html#L197'>end</a><span class="Delimiter">())</span>
 <span id="L456" class="LineNr">456 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
 <span id="L457" class="LineNr">457 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span>header_type<span class="Delimiter">,</span> inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name<span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>  <span class="Comment">// error handled elsewhere</span>
 <span id="L458" class="LineNr">458 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>type = <span class="Normal">new</span> type_tree<span class="Delimiter">(</span>*get<span class="Delimiter">(</span>header_type<span class="Delimiter">,</span> inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name<span class="Delimiter">));</span>
-<span id="L459" class="LineNr">459 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9993</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;type of &quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name &lt;&lt; <span class="Constant">&quot; is &quot;</span> &lt;&lt; names_to_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>type<span class="Delimiter">)</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L459" class="LineNr">459 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9993</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;type of &quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name &lt;&lt; <span class="Constant">&quot; is &quot;</span> &lt;&lt; names_to_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>type<span class="Delimiter">)</span> &lt;&lt; <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
 <span id="L460" class="LineNr">460 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L461" class="LineNr">461 </span>  <span class="Conceal">¦</span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-<span id="L462" class="LineNr">462 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9993</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;  product: &quot;</span> &lt;&lt; <a href='028call_return.cc.html#L158'>to_string</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">))</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L462" class="LineNr">462 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9993</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;  product: &quot;</span> &lt;&lt; <a href='028call_return.cc.html#L158'>to_string</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">))</span> &lt;&lt; <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
 <span id="L463" class="LineNr">463 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>type<span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
-<span id="L464" class="LineNr">464 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>header_type<span class="Delimiter">.</span>find<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name<span class="Delimiter">)</span> == header_type<span class="Delimiter">.</span><a href='003trace.cc.html#L185'>end</a><span class="Delimiter">())</span>
+<span id="L464" class="LineNr">464 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>header_type<span class="Delimiter">.</span>find<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name<span class="Delimiter">)</span> == header_type<span class="Delimiter">.</span><a href='003trace.cc.html#L197'>end</a><span class="Delimiter">())</span>
 <span id="L465" class="LineNr">465 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
 <span id="L466" class="LineNr">466 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span>header_type<span class="Delimiter">,</span> inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name<span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>  <span class="Comment">// error handled elsewhere</span>
 <span id="L467" class="LineNr">467 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>type = <span class="Normal">new</span> type_tree<span class="Delimiter">(</span>*get<span class="Delimiter">(</span>header_type<span class="Delimiter">,</span> inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name<span class="Delimiter">));</span>
-<span id="L468" class="LineNr">468 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9993</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;type of &quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name &lt;&lt; <span class="Constant">&quot; is &quot;</span> &lt;&lt; names_to_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>type<span class="Delimiter">)</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L468" class="LineNr">468 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9993</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;type of &quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name &lt;&lt; <span class="Constant">&quot; is &quot;</span> &lt;&lt; names_to_string<span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>type<span class="Delimiter">)</span> &lt;&lt; <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
 <span id="L469" class="LineNr">469 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L470" class="LineNr">470 </span>  <span class="Delimiter">}</span>
 <span id="L471" class="LineNr">471 </span><span class="Delimiter">}</span>
@@ -557,7 +557,7 @@ if ('onhashchange' in window) {
 <span id="L491" class="LineNr">491 </span><span class="Delimiter">:(code)</span>
 <span id="L492" class="LineNr">492 </span><span class="Normal">void</span> fill_in_return_ingredients<span class="Delimiter">(</span><span class="Normal">const</span> <a href='010vm.cc.html#L14'>recipe_ordinal</a> r<span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L493" class="LineNr">493 </span>  recipe&amp; caller_recipe = get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">);</span>
-<span id="L494" class="LineNr">494 </span>  <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9991</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;--- fill in return ingredients from header for <a href='010vm.cc.html#L19'>recipe</a> &quot;</span> &lt;&lt; caller_recipe<span class="Delimiter">.</span>name &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L494" class="LineNr">494 </span>  <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9991</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;--- fill in return ingredients from header for <a href='010vm.cc.html#L19'>recipe</a> &quot;</span> &lt;&lt; caller_recipe<span class="Delimiter">.</span>name &lt;&lt; <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
 <span id="L495" class="LineNr">495 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!caller_recipe<span class="Delimiter">.</span>has_header<span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
 <span id="L496" class="LineNr">496 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span>  i &lt; <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>caller_recipe<span class="Delimiter">.</span>steps<span class="Delimiter">);</span>  ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L497" class="LineNr">497 </span>  <span class="Conceal">¦</span> instruction&amp; inst = caller_recipe<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
@@ -690,12 +690,12 @@ if ('onhashchange' in window) {
 <span id="L624" class="LineNr">624 </span><span class="Normal">void</span> check_recipe_header_constraints<span class="Delimiter">(</span><span class="Normal">const</span> <a href='010vm.cc.html#L14'>recipe_ordinal</a> r<span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L625" class="LineNr">625 </span>  <span class="Normal">const</span> recipe&amp; caller = get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">);</span>
 <span id="L626" class="LineNr">626 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>caller<span class="Delimiter">.</span>name != <span class="Constant">&quot;main&quot;</span><span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
-<span id="L627" class="LineNr">627 </span>  <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9992</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;check <a href='010vm.cc.html#L19'>recipe</a> header constraints for <a href='010vm.cc.html#L19'>recipe</a> &quot;</span> &lt;&lt; caller<span class="Delimiter">.</span>name &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L627" class="LineNr">627 </span>  <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9992</span><span class="Delimiter">,</span> <span class="Constant">&quot;transform&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;check <a href='010vm.cc.html#L19'>recipe</a> header constraints for <a href='010vm.cc.html#L19'>recipe</a> &quot;</span> &lt;&lt; caller<span class="Delimiter">.</span>name &lt;&lt; <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
 <span id="L628" class="LineNr">628 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!caller<span class="Delimiter">.</span>has_header<span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
 <span id="L629" class="LineNr">629 </span>  reagent<span class="Comment">/*</span><span class="Comment">local</span><span class="Comment">*/</span> expected_ingredient<span class="Delimiter">(</span><span class="Constant">&quot;x:<a href='043space.cc.html#L76'>address</a>:array:character&quot;</span><span class="Delimiter">);</span>
 <span id="L630" class="LineNr">630 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i &lt; <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>caller<span class="Delimiter">.</span>ingredients<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span id="L631" class="LineNr">631 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>!types_strictly_match<span class="Delimiter">(</span>expected_ingredient<span class="Delimiter">,</span> caller<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)))</span> <span class="Delimiter">{</span>
-<span id="L632" class="LineNr">632 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;ingredients of <a href='010vm.cc.html#L19'>recipe</a> 'main' must all be text (address:array:character)</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L632" class="LineNr">632 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;ingredients of <a href='010vm.cc.html#L19'>recipe</a> 'main' must all be text (address:array:character)</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
 <span id="L633" class="LineNr">633 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span id="L634" class="LineNr">634 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
 <span id="L635" class="LineNr">635 </span>  <span class="Delimiter">}</span>
@@ -703,7 +703,7 @@ if ('onhashchange' in window) {
 <span id="L637" class="LineNr">637 </span>  reagent<span class="Comment">/*</span><span class="Comment">local</span><span class="Comment">*/</span> expected_product<span class="Delimiter">(</span><span class="Constant">&quot;x:number&quot;</span><span class="Delimiter">);</span>
 <span id="L638" class="LineNr">638 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>nprod &gt; <span class="Constant">1</span>
 <span id="L639" class="LineNr">639 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> || <span class="Delimiter">(</span>nprod == <span class="Constant">1</span> &amp;&amp; !types_strictly_match<span class="Delimiter">(</span>expected_product<span class="Delimiter">,</span> caller<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">))))</span> <span class="Delimiter">{</span>
-<span id="L640" class="LineNr">640 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;recipe 'main' must return at most a single product, a number</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
+<span id="L640" class="LineNr">640 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;recipe 'main' must return at most a single product, a number</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
 <span id="L641" class="LineNr">641 </span>  <span class="Delimiter">}</span>
 <span id="L642" class="LineNr">642 </span><span class="Delimiter">}</span>
 <span id="L643" class="LineNr">643 </span>