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-rw-r--r--html/050scenario.cc.html261
1 files changed, 160 insertions, 101 deletions
diff --git a/html/050scenario.cc.html b/html/050scenario.cc.html
index f2b7c24f..db392a7c 100644
--- a/html/050scenario.cc.html
+++ b/html/050scenario.cc.html
@@ -13,17 +13,16 @@
 pre { white-space: pre-wrap; font-family: monospace; color: #eeeeee; background-color: #080808; }
 body { font-family: monospace; color: #eeeeee; background-color: #080808; }
 * { font-size: 1.05em; }
-.traceContains { color: #008000; }
-.SalientComment { color: #00ffff; }
-.Constant { color: #00a0a0; }
 .cSpecial { color: #008000; }
+.SalientComment { color: #00ffff; }
+.Identifier { color: #804000; }
 .traceAbsent { color: #c00000; }
-.Normal { color: #eeeeee; background-color: #080808; padding-bottom: 1px; }
 .Comment { color: #9090ff; }
 .Delimiter { color: #a04060; }
 .Special { color: #ff6060; }
-.Identifier { color: #804000; }
 .CommentedCode { color: #6c6c6c; }
+.Constant { color: #00a0a0; }
+.traceContains { color: #008000; }
 -->
 </style>
 
@@ -74,23 +73,23 @@ scenario foo [
 scenario foo [
   run [
     <span class="Constant">1</span>:number<span class="Special"> &lt;- </span>copy <span class="Constant">13</span>
-    trace [a]<span class="Delimiter">,</span> [a b c]
+    trace <span class="Constant">1</span><span class="Delimiter">,</span> [a]<span class="Delimiter">,</span> [a b c]
   ]
   memory-should-contain [
     <span class="Constant">1</span><span class="Special"> &lt;- </span><span class="Constant">13</span>
   ]
   trace-should-contain [
-    <span class="Normal">a</span>: a b c
+    a: a b c
   ]
-  trace-should-<span class="Normal">not</span>-contain [
-    <span class="Normal">a</span>: x y z
+  trace-should-not-contain [
+    a: x y z
   ]
 ]
 
 <span class="SalientComment">//:: Core data structure</span>
 
 <span class="Delimiter">:(before &quot;End Types&quot;)</span>
-<span class="Normal">struct</span> scenario <span class="Delimiter">{</span>
+struct scenario <span class="Delimiter">{</span>
   string name<span class="Delimiter">;</span>
   string to_run<span class="Delimiter">;</span>
 <span class="Delimiter">};</span>
@@ -102,7 +101,7 @@ vector&lt;scenario&gt; Scenarios<span class="Delimiter">;</span>
 <span class="Comment">//: Simply store the text of the scenario.</span>
 
 <span class="Delimiter">:(before &quot;End Command Handlers&quot;)</span>
-<span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>command == <span class="Constant">&quot;scenario&quot;</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
+else if <span class="Delimiter">(</span>command == <span class="Constant">&quot;scenario&quot;</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
   Scenarios<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>parse_scenario<span class="Delimiter">(</span>in<span class="Delimiter">));</span>
 <span class="Delimiter">}</span>
 
@@ -135,7 +134,7 @@ scenario foo [
 
 <span class="Delimiter">:(scenario read_scenario_with_bracket_in_comment_in_nested_string)</span>
 scenario foo [
-  <span class="Constant">1</span>:address:array:character<span class="Special"> &lt;- </span><span class="Normal">new</span> [<span class="Comment"># not a comment]</span>
+  <span class="Constant">1</span>:address:array:character<span class="Special"> &lt;- </span>new [<span class="Comment"># not a comment]</span>
 ]
 <span class="traceContains">+run: 1:address:array:character &lt;- new [# not a comment]</span>
 
@@ -143,35 +142,35 @@ scenario foo [
 <span class="Comment">//: Treat the text of the scenario as a regular series of instructions.</span>
 
 <span class="Delimiter">:(before &quot;End Tests&quot;)</span>
-<span class="Normal">time_t</span> mu_time<span class="Delimiter">;</span> time<span class="Delimiter">(</span>&amp;mu_time<span class="Delimiter">);</span>
+time_t mu_time<span class="Delimiter">;</span> time<span class="Delimiter">(</span>&amp;mu_time<span class="Delimiter">);</span>
 cerr &lt;&lt; <span class="Constant">&quot;</span><span class="cSpecial">\n</span><span class="Constant">Mu tests: &quot;</span> &lt;&lt; ctime<span class="Delimiter">(</span>&amp;mu_time<span class="Delimiter">);</span>
-<span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i &lt; SIZE<span class="Delimiter">(</span>Scenarios<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+for <span class="Delimiter">(</span>long long int i = <span class="Constant">0</span><span class="Delimiter">;</span> i &lt; SIZE<span class="Delimiter">(</span>Scenarios<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span class="CommentedCode">//?   cerr &lt;&lt; Passed &lt;&lt; '\n'; //? 1</span>
-<span class="CommentedCode">//?   cerr &lt;&lt; i &lt;&lt; &quot;: &quot; &lt;&lt; Scenarios.at(i).name &lt;&lt; '\n'; //? 6</span>
+<span class="CommentedCode">//?   cerr &lt;&lt; i &lt;&lt; &quot;: &quot; &lt;&lt; Scenarios.at(i).name &lt;&lt; '\n'; //? 7</span>
   run_mu_scenario<span class="Delimiter">(</span>Scenarios<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">));</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>Passed<span class="Delimiter">)</span> cerr &lt;&lt; <span class="Constant">&quot;.&quot;</span><span class="Delimiter">;</span>
+  if <span class="Delimiter">(</span>Passed<span class="Delimiter">)</span> cerr &lt;&lt; <span class="Constant">&quot;.&quot;</span><span class="Delimiter">;</span>
 <span class="Delimiter">}</span>
 
 <span class="Comment">//: Convenience: run a single named scenario.</span>
 <span class="Delimiter">:(after &quot;Test Runs&quot;)</span>
-<span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i &lt; SIZE<span class="Delimiter">(</span>Scenarios<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>Scenarios<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name == argv[argc-<span class="Constant">1</span>]<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+for <span class="Delimiter">(</span>long long int i = <span class="Constant">0</span><span class="Delimiter">;</span> i &lt; SIZE<span class="Delimiter">(</span>Scenarios<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+  if <span class="Delimiter">(</span>Scenarios<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>name == argv[argc-<span class="Constant">1</span>]<span class="Delimiter">)</span> <span class="Delimiter">{</span>
     run_mu_scenario<span class="Delimiter">(</span>Scenarios<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">));</span>
-    <span class="Normal">if</span> <span class="Delimiter">(</span>Passed<span class="Delimiter">)</span> cerr &lt;&lt; <span class="Constant">&quot;.</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span><span class="Delimiter">;</span>
+    if <span class="Delimiter">(</span>Passed<span class="Delimiter">)</span> cerr &lt;&lt; <span class="Constant">&quot;.</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span><span class="Delimiter">;</span>
     <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span>
   <span class="Delimiter">}</span>
 <span class="Delimiter">}</span>
 
 <span class="Delimiter">:(before &quot;End Globals&quot;)</span>
-<span class="Normal">const</span> scenario* Current_scenario = <span class="Constant">NULL</span><span class="Delimiter">;</span>
+const scenario* Current_scenario = <span class="Constant">NULL</span><span class="Delimiter">;</span>
 <span class="Delimiter">:(code)</span>
-<span class="Normal">void</span> run_mu_scenario<span class="Delimiter">(</span><span class="Normal">const</span> scenario&amp; s<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+void run_mu_scenario<span class="Delimiter">(</span>const scenario&amp; s<span class="Delimiter">)</span> <span class="Delimiter">{</span>
   Current_scenario = &amp;s<span class="Delimiter">;</span>
-  <span class="Normal">bool</span> not_already_inside_test = !Trace_stream<span class="Delimiter">;</span>
+  bool not_already_inside_test = !Trace_stream<span class="Delimiter">;</span>
 <span class="CommentedCode">//?   cerr &lt;&lt; s.name &lt;&lt; '\n'; //? 12</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>not_already_inside_test<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+  if <span class="Delimiter">(</span>not_already_inside_test<span class="Delimiter">)</span> <span class="Delimiter">{</span>
     Trace_file = s<span class="Delimiter">.</span>name<span class="Delimiter">;</span>
-    Trace_stream = <span class="Normal">new</span> trace_stream<span class="Delimiter">;</span>
+    Trace_stream = new trace_stream<span class="Delimiter">;</span>
     setup<span class="Delimiter">();</span>
   <span class="Delimiter">}</span>
   assert<span class="Delimiter">(</span>Routines<span class="Delimiter">.</span>empty<span class="Delimiter">());</span>
@@ -179,12 +178,12 @@ cerr &lt;&lt; <span class="Constant">&quot;</span><span class="cSpecial">\n</spa
   bind_special_scenario_names<span class="Delimiter">(</span>tmp<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">));</span>
   transform_all<span class="Delimiter">();</span>
   run<span class="Delimiter">(</span>tmp<span class="Delimiter">.</span>front<span class="Delimiter">());</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>not_already_inside_test &amp;&amp; Trace_stream<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+  if <span class="Delimiter">(</span>not_already_inside_test &amp;&amp; Trace_stream<span class="Delimiter">)</span> <span class="Delimiter">{</span>
     teardown<span class="Delimiter">();</span>
     ofstream fout<span class="Delimiter">((</span>Trace_dir+Trace_file<span class="Delimiter">).</span>c_str<span class="Delimiter">());</span>
     fout &lt;&lt; Trace_stream<span class="Delimiter">-&gt;</span>readable_contents<span class="Delimiter">(</span><span class="Constant">&quot;&quot;</span><span class="Delimiter">);</span>
     fout<span class="Delimiter">.</span>close<span class="Delimiter">();</span>
-    <span class="Normal">delete</span> Trace_stream<span class="Delimiter">;</span>
+    delete Trace_stream<span class="Delimiter">;</span>
     Trace_stream = <span class="Constant">NULL</span><span class="Delimiter">;</span>
     Trace_file = <span class="Constant">&quot;&quot;</span><span class="Delimiter">;</span>
   <span class="Delimiter">}</span>
@@ -207,7 +206,7 @@ recipe scenario-foo [
 <span class="traceContains">+warn: redefining recipe scenario-foo</span>
 
 <span class="Delimiter">:(after &quot;bool warn_on_redefine(const string&amp; recipe_name)&quot;)</span>
-<span class="Normal">if</span> <span class="Delimiter">(</span>recipe_name<span class="Delimiter">.</span>find<span class="Delimiter">(</span><span class="Constant">&quot;scenario-&quot;</span><span class="Delimiter">)</span> == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
+if <span class="Delimiter">(</span>recipe_name<span class="Delimiter">.</span>find<span class="Delimiter">(</span><span class="Constant">&quot;scenario-&quot;</span><span class="Delimiter">)</span> == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
 
 <span class="SalientComment">//:: The special instructions we want to support inside scenarios.</span>
 <span class="Comment">//: In a compiler for the mu VM these will require more work.</span>
@@ -228,7 +227,7 @@ RUN<span class="Delimiter">,</span>
 <span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
 Recipe_ordinal[<span class="Constant">&quot;run&quot;</span>] = RUN<span class="Delimiter">;</span>
 <span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
-<span class="Normal">case</span> RUN: <span class="Delimiter">{</span>
+case RUN: <span class="Delimiter">{</span>
 <span class="CommentedCode">//?   cout &lt;&lt; &quot;recipe &quot; &lt;&lt; current_instruction().ingredients.at(0).name &lt;&lt; '\n'; //? 1</span>
   ostringstream tmp<span class="Delimiter">;</span>
   tmp &lt;&lt; <span class="Constant">&quot;recipe run&quot;</span> &lt;&lt; Next_recipe_ordinal &lt;&lt; <span class="Constant">&quot; [ &quot;</span> &lt;&lt; current_instruction<span class="Delimiter">().</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>name &lt;&lt; <span class="Constant">&quot; ]&quot;</span><span class="Delimiter">;</span>
@@ -244,7 +243,7 @@ Recipe_ordinal[<span class="Constant">&quot;run&quot;</span>] = RUN<span class="
 <span class="Comment">// Some variables for fake resources always get special addresses in</span>
 <span class="Comment">// scenarios.</span>
 <span class="Delimiter">:(code)</span>
-<span class="Normal">void</span> bind_special_scenario_names<span class="Delimiter">(</span>recipe_ordinal r<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+void bind_special_scenario_names<span class="Delimiter">(</span>recipe_ordinal r<span class="Delimiter">)</span> <span class="Delimiter">{</span>
   <span class="Comment">// Special Scenario Variable Names(r)</span>
   <span class="Comment">// End Special Scenario Variable Names(r)</span>
 <span class="Delimiter">}</span>
@@ -265,7 +264,7 @@ recipe main [
 <span class="Comment">//: Also includes some special support for checking strings.</span>
 
 <span class="Delimiter">:(before &quot;End Globals&quot;)</span>
-<span class="Normal">bool</span> Scenario_testing_scenario = <span class="Constant">false</span><span class="Delimiter">;</span>
+bool Scenario_testing_scenario = <span class="Constant">false</span><span class="Delimiter">;</span>
 <span class="Delimiter">:(before &quot;End Setup&quot;)</span>
 Scenario_testing_scenario = <span class="Constant">false</span><span class="Delimiter">;</span>
 
@@ -285,44 +284,44 @@ MEMORY_SHOULD_CONTAIN<span class="Delimiter">,</span>
 <span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
 Recipe_ordinal[<span class="Constant">&quot;memory-should-contain&quot;</span>] = MEMORY_SHOULD_CONTAIN<span class="Delimiter">;</span>
 <span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
-<span class="Normal">case</span> MEMORY_SHOULD_CONTAIN: <span class="Delimiter">{</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>!Passed<span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
+case MEMORY_SHOULD_CONTAIN: <span class="Delimiter">{</span>
+  if <span class="Delimiter">(</span>!Passed<span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span class="CommentedCode">//?   cout &lt;&lt; current_instruction().ingredients.at(0).name &lt;&lt; '\n'; //? 1</span>
   check_memory<span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>name<span class="Delimiter">);</span>
   <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span class="Delimiter">}</span>
 
 <span class="Delimiter">:(code)</span>
-<span class="Normal">void</span> check_memory<span class="Delimiter">(</span><span class="Normal">const</span> string&amp; s<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+void check_memory<span class="Delimiter">(</span>const string&amp; s<span class="Delimiter">)</span> <span class="Delimiter">{</span>
   istringstream in<span class="Delimiter">(</span>s<span class="Delimiter">);</span>
   in &gt;&gt; std::noskipws<span class="Delimiter">;</span>
-  set&lt;<span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span>&gt; locations_checked<span class="Delimiter">;</span>
-  <span class="Normal">while</span> <span class="Delimiter">(</span><span class="Constant">true</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
+  set&lt;long long int&gt; locations_checked<span class="Delimiter">;</span>
+  while <span class="Delimiter">(</span><span class="Constant">true</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
     skip_whitespace_and_comments<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
-    <span class="Normal">if</span> <span class="Delimiter">(</span>in<span class="Delimiter">.</span>eof<span class="Delimiter">())</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
+    if <span class="Delimiter">(</span>in<span class="Delimiter">.</span>eof<span class="Delimiter">())</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
     string lhs = next_word<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
-    <span class="Normal">if</span> <span class="Delimiter">(</span>!is_integer<span class="Delimiter">(</span>lhs<span class="Delimiter">))</span> <span class="Delimiter">{</span>
+    if <span class="Delimiter">(</span>!is_integer<span class="Delimiter">(</span>lhs<span class="Delimiter">))</span> <span class="Delimiter">{</span>
       check_type<span class="Delimiter">(</span>lhs<span class="Delimiter">,</span> in<span class="Delimiter">);</span>
       <span class="Identifier">continue</span><span class="Delimiter">;</span>
     <span class="Delimiter">}</span>
-    <span class="Normal">int</span> address = to_integer<span class="Delimiter">(</span>lhs<span class="Delimiter">);</span>
+    int address = to_integer<span class="Delimiter">(</span>lhs<span class="Delimiter">);</span>
     skip_whitespace_and_comments<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
     string _assign<span class="Delimiter">;</span>  in &gt;&gt; _assign<span class="Delimiter">;</span>  assert<span class="Delimiter">(</span>_assign == <span class="Constant">&quot;&lt;-&quot;</span><span class="Delimiter">);</span>
     skip_whitespace_and_comments<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
-    <span class="Normal">int</span> value = <span class="Constant">0</span><span class="Delimiter">;</span>  in &gt;&gt; value<span class="Delimiter">;</span>
-    <span class="Normal">if</span> <span class="Delimiter">(</span>locations_checked<span class="Delimiter">.</span>find<span class="Delimiter">(</span>address<span class="Delimiter">)</span> != locations_checked<span class="Delimiter">.</span>end<span class="Delimiter">())</span>
+    int value = <span class="Constant">0</span><span class="Delimiter">;</span>  in &gt;&gt; value<span class="Delimiter">;</span>
+    if <span class="Delimiter">(</span>locations_checked<span class="Delimiter">.</span>find<span class="Delimiter">(</span>address<span class="Delimiter">)</span> != locations_checked<span class="Delimiter">.</span>end<span class="Delimiter">())</span>
       raise &lt;&lt; <span class="Constant">&quot;duplicate expectation for location &quot;</span> &lt;&lt; address &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span>
     trace<span class="Delimiter">(</span>Primitive_recipe_depth<span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;checking location &quot;</span> &lt;&lt; address &lt;&lt; end<span class="Delimiter">();</span>
-    <span class="Normal">if</span> <span class="Delimiter">(</span>Memory[address] != value<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-      <span class="Normal">if</span> <span class="Delimiter">(</span>Current_scenario &amp;&amp; !Scenario_testing_scenario<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+    if <span class="Delimiter">(</span>Memory[address] != value<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+      if <span class="Delimiter">(</span>Current_scenario &amp;&amp; !Scenario_testing_scenario<span class="Delimiter">)</span> <span class="Delimiter">{</span>
         <span class="Comment">// genuine test in a mu file</span>
         raise &lt;&lt; <span class="Constant">&quot;</span><span class="cSpecial">\n</span><span class="Constant">F - &quot;</span> &lt;&lt; Current_scenario<span class="Delimiter">-&gt;</span>name &lt;&lt; <span class="Constant">&quot;: expected location &quot;</span> &lt;&lt; address &lt;&lt; <span class="Constant">&quot; to contain &quot;</span> &lt;&lt; value &lt;&lt; <span class="Constant">&quot; but saw &quot;</span> &lt;&lt; Memory[address] &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span>
       <span class="Delimiter">}</span>
-      <span class="Normal">else</span> <span class="Delimiter">{</span>
+      else <span class="Delimiter">{</span>
         <span class="Comment">// just testing scenario support</span>
         raise &lt;&lt; <span class="Constant">&quot;expected location &quot;</span> &lt;&lt; address &lt;&lt; <span class="Constant">&quot; to contain &quot;</span> &lt;&lt; value &lt;&lt; <span class="Constant">&quot; but saw &quot;</span> &lt;&lt; Memory[address] &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span>
       <span class="Delimiter">}</span>
-      <span class="Normal">if</span> <span class="Delimiter">(</span>!Scenario_testing_scenario<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+      if <span class="Delimiter">(</span>!Scenario_testing_scenario<span class="Delimiter">)</span> <span class="Delimiter">{</span>
         Passed = <span class="Constant">false</span><span class="Delimiter">;</span>
         ++Num_failures<span class="Delimiter">;</span>
       <span class="Delimiter">}</span>
@@ -332,16 +331,16 @@ Recipe_ordinal[<span class="Constant">&quot;memory-should-contain&quot;</span>]
   <span class="Delimiter">}</span>
 <span class="Delimiter">}</span>
 
-<span class="Normal">void</span> check_type<span class="Delimiter">(</span><span class="Normal">const</span> string&amp; lhs<span class="Delimiter">,</span> istream&amp; in<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+void check_type<span class="Delimiter">(</span>const string&amp; lhs<span class="Delimiter">,</span> istream&amp; in<span class="Delimiter">)</span> <span class="Delimiter">{</span>
   reagent x<span class="Delimiter">(</span>lhs<span class="Delimiter">);</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>x<span class="Delimiter">.</span>properties<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>second<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span> == <span class="Constant">&quot;string&quot;</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
+  if <span class="Delimiter">(</span>x<span class="Delimiter">.</span>properties<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>second<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span> == <span class="Constant">&quot;string&quot;</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
     x<span class="Delimiter">.</span>set_value<span class="Delimiter">(</span>to_integer<span class="Delimiter">(</span>x<span class="Delimiter">.</span>name<span class="Delimiter">));</span>
     skip_whitespace_and_comments<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
     string _assign = next_word<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
     assert<span class="Delimiter">(</span>_assign == <span class="Constant">&quot;&lt;-&quot;</span><span class="Delimiter">);</span>
     skip_whitespace_and_comments<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
     string literal = next_word<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
-    <span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> address = x<span class="Delimiter">.</span>value<span class="Delimiter">;</span>
+    long long int address = x<span class="Delimiter">.</span>value<span class="Delimiter">;</span>
     <span class="Comment">// exclude quoting brackets</span>
     assert<span class="Delimiter">(</span>*literal<span class="Delimiter">.</span>begin<span class="Delimiter">()</span> == <span class="Constant">'['</span><span class="Delimiter">);</span>  literal<span class="Delimiter">.</span>erase<span class="Delimiter">(</span>literal<span class="Delimiter">.</span>begin<span class="Delimiter">());</span>
     assert<span class="Delimiter">(</span>*--literal<span class="Delimiter">.</span>end<span class="Delimiter">()</span> == <span class="Constant">']'</span><span class="Delimiter">);</span>  literal<span class="Delimiter">.</span>erase<span class="Delimiter">(</span>--literal<span class="Delimiter">.</span>end<span class="Delimiter">());</span>
@@ -351,32 +350,32 @@ Recipe_ordinal[<span class="Constant">&quot;memory-should-contain&quot;</span>]
   raise &lt;&lt; <span class="Constant">&quot;don't know how to check memory for &quot;</span> &lt;&lt; lhs &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span>
 <span class="Delimiter">}</span>
 
-<span class="Normal">void</span> check_string<span class="Delimiter">(</span><span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> address<span class="Delimiter">,</span> <span class="Normal">const</span> string&amp; literal<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+void check_string<span class="Delimiter">(</span>long long int address<span class="Delimiter">,</span> const string&amp; literal<span class="Delimiter">)</span> <span class="Delimiter">{</span>
   trace<span class="Delimiter">(</span>Primitive_recipe_depth<span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;checking string length at &quot;</span> &lt;&lt; address &lt;&lt; end<span class="Delimiter">();</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>Memory[address] != SIZE<span class="Delimiter">(</span>literal<span class="Delimiter">))</span> <span class="Delimiter">{</span>
-    <span class="Normal">if</span> <span class="Delimiter">(</span>Current_scenario &amp;&amp; !Scenario_testing_scenario<span class="Delimiter">)</span>
+  if <span class="Delimiter">(</span>Memory[address] != SIZE<span class="Delimiter">(</span>literal<span class="Delimiter">))</span> <span class="Delimiter">{</span>
+    if <span class="Delimiter">(</span>Current_scenario &amp;&amp; !Scenario_testing_scenario<span class="Delimiter">)</span>
       raise &lt;&lt; <span class="Constant">&quot;</span><span class="cSpecial">\n</span><span class="Constant">F - &quot;</span> &lt;&lt; Current_scenario<span class="Delimiter">-&gt;</span>name &lt;&lt; <span class="Constant">&quot;: expected location &quot;</span> &lt;&lt; address &lt;&lt; <span class="Constant">&quot; to contain length &quot;</span> &lt;&lt; SIZE<span class="Delimiter">(</span>literal<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot; of string [&quot;</span> &lt;&lt; literal &lt;&lt; <span class="Constant">&quot;] but saw &quot;</span> &lt;&lt; Memory[address] &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span>
-    <span class="Normal">else</span>
+    else
       raise &lt;&lt; <span class="Constant">&quot;expected location &quot;</span> &lt;&lt; address &lt;&lt; <span class="Constant">&quot; to contain length &quot;</span> &lt;&lt; SIZE<span class="Delimiter">(</span>literal<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot; of string [&quot;</span> &lt;&lt; literal &lt;&lt; <span class="Constant">&quot;] but saw &quot;</span> &lt;&lt; Memory[address] &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span>
-    <span class="Normal">if</span> <span class="Delimiter">(</span>!Scenario_testing_scenario<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+    if <span class="Delimiter">(</span>!Scenario_testing_scenario<span class="Delimiter">)</span> <span class="Delimiter">{</span>
       Passed = <span class="Constant">false</span><span class="Delimiter">;</span>
       ++Num_failures<span class="Delimiter">;</span>
     <span class="Delimiter">}</span>
     <span class="Identifier">return</span><span class="Delimiter">;</span>
   <span class="Delimiter">}</span>
   ++address<span class="Delimiter">;</span>  <span class="Comment">// now skip length</span>
-  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i &lt; SIZE<span class="Delimiter">(</span>literal<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+  for <span class="Delimiter">(</span>long long int i = <span class="Constant">0</span><span class="Delimiter">;</span> i &lt; SIZE<span class="Delimiter">(</span>literal<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
     trace<span class="Delimiter">(</span>Primitive_recipe_depth<span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;checking location &quot;</span> &lt;&lt; address+i &lt;&lt; end<span class="Delimiter">();</span>
-    <span class="Normal">if</span> <span class="Delimiter">(</span>Memory[address+i] != literal<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">))</span> <span class="Delimiter">{</span>
-      <span class="Normal">if</span> <span class="Delimiter">(</span>Current_scenario &amp;&amp; !Scenario_testing_scenario<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+    if <span class="Delimiter">(</span>Memory[address+i] != literal<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">))</span> <span class="Delimiter">{</span>
+      if <span class="Delimiter">(</span>Current_scenario &amp;&amp; !Scenario_testing_scenario<span class="Delimiter">)</span> <span class="Delimiter">{</span>
         <span class="Comment">// genuine test in a mu file</span>
         raise &lt;&lt; <span class="Constant">&quot;</span><span class="cSpecial">\n</span><span class="Constant">F - &quot;</span> &lt;&lt; Current_scenario<span class="Delimiter">-&gt;</span>name &lt;&lt; <span class="Constant">&quot;: expected location &quot;</span> &lt;&lt; <span class="Delimiter">(</span>address+i<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot; to contain &quot;</span> &lt;&lt; literal<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot; but saw &quot;</span> &lt;&lt; Memory[address+i] &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span>
       <span class="Delimiter">}</span>
-      <span class="Normal">else</span> <span class="Delimiter">{</span>
+      else <span class="Delimiter">{</span>
         <span class="Comment">// just testing scenario support</span>
         raise &lt;&lt; <span class="Constant">&quot;expected location &quot;</span> &lt;&lt; <span class="Delimiter">(</span>address+i<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot; to contain &quot;</span> &lt;&lt; literal<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot; but saw &quot;</span> &lt;&lt; Memory[address+i] &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span>
       <span class="Delimiter">}</span>
-      <span class="Normal">if</span> <span class="Delimiter">(</span>!Scenario_testing_scenario<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+      if <span class="Delimiter">(</span>!Scenario_testing_scenario<span class="Delimiter">)</span> <span class="Delimiter">{</span>
         Passed = <span class="Constant">false</span><span class="Delimiter">;</span>
         ++Num_failures<span class="Delimiter">;</span>
       <span class="Delimiter">}</span>
@@ -436,19 +435,19 @@ recipe main [
 <span class="Special">% Hide_warnings = true;</span>
 recipe main [
   trace-should-contain [
-    <span class="Normal">a</span>: b
-    <span class="Normal">a</span>: d
+    a: b
+    a: d
   ]
 ]
-<span class="traceContains">+warn: missing [b] in trace layer a</span>
+<span class="traceContains">+warn: missing [b] in trace with label a</span>
 
 <span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
 TRACE_SHOULD_CONTAIN<span class="Delimiter">,</span>
 <span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
 Recipe_ordinal[<span class="Constant">&quot;trace-should-contain&quot;</span>] = TRACE_SHOULD_CONTAIN<span class="Delimiter">;</span>
 <span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
-<span class="Normal">case</span> TRACE_SHOULD_CONTAIN: <span class="Delimiter">{</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>!Passed<span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
+case TRACE_SHOULD_CONTAIN: <span class="Delimiter">{</span>
+  if <span class="Delimiter">(</span>!Passed<span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
   check_trace<span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>name<span class="Delimiter">);</span>
   <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span class="Delimiter">}</span>
@@ -456,37 +455,37 @@ Recipe_ordinal[<span class="Constant">&quot;trace-should-contain&quot;</span>] =
 <span class="Delimiter">:(code)</span>
 <span class="Comment">// simplified version of check_trace_contents() that emits warnings rather</span>
 <span class="Comment">// than just printing to stderr</span>
-<span class="Normal">bool</span> check_trace<span class="Delimiter">(</span><span class="Normal">const</span> string&amp; expected<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+bool check_trace<span class="Delimiter">(</span>const string&amp; expected<span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span class="CommentedCode">//?   cerr &lt;&lt; &quot;AAA &quot; &lt;&lt; expected &lt;&lt; '\n'; //? 1</span>
   Trace_stream<span class="Delimiter">-&gt;</span>newline<span class="Delimiter">();</span>
   vector&lt;trace_line&gt; expected_lines = parse_trace<span class="Delimiter">(</span>expected<span class="Delimiter">);</span>
 <span class="CommentedCode">//?   cerr &lt;&lt; &quot;BBB &quot; &lt;&lt; SIZE(expected_lines) &lt;&lt; '\n'; //? 1</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>expected_lines<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
-  <span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> curr_expected_line = <span class="Constant">0</span><span class="Delimiter">;</span>
-  <span class="Normal">for</span> <span class="Delimiter">(</span>vector&lt;trace_line&gt;::iterator p = Trace_stream<span class="Delimiter">-&gt;</span>past_lines<span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != Trace_stream<span class="Delimiter">-&gt;</span>past_lines<span class="Delimiter">.</span>end<span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-    <span class="Normal">if</span> <span class="Delimiter">(</span>expected_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>curr_expected_line<span class="Delimiter">).</span>label != p<span class="Delimiter">-&gt;</span>label<span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
-    <span class="Normal">if</span> <span class="Delimiter">(</span>expected_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>curr_expected_line<span class="Delimiter">).</span>contents != trim<span class="Delimiter">(</span>p<span class="Delimiter">-&gt;</span>contents<span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
+  if <span class="Delimiter">(</span>expected_lines<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
+  long long int curr_expected_line = <span class="Constant">0</span><span class="Delimiter">;</span>
+  for <span class="Delimiter">(</span>vector&lt;trace_line&gt;::iterator p = Trace_stream<span class="Delimiter">-&gt;</span>past_lines<span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != Trace_stream<span class="Delimiter">-&gt;</span>past_lines<span class="Delimiter">.</span>end<span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+    if <span class="Delimiter">(</span>expected_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>curr_expected_line<span class="Delimiter">).</span>label != p<span class="Delimiter">-&gt;</span>label<span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
+    if <span class="Delimiter">(</span>expected_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>curr_expected_line<span class="Delimiter">).</span>contents != trim<span class="Delimiter">(</span>p<span class="Delimiter">-&gt;</span>contents<span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
     <span class="Comment">// match</span>
     ++curr_expected_line<span class="Delimiter">;</span>
-    <span class="Normal">if</span> <span class="Delimiter">(</span>curr_expected_line == SIZE<span class="Delimiter">(</span>expected_lines<span class="Delimiter">))</span> <span class="Delimiter">{</span>
+    if <span class="Delimiter">(</span>curr_expected_line == SIZE<span class="Delimiter">(</span>expected_lines<span class="Delimiter">))</span> <span class="Delimiter">{</span>
 <span class="CommentedCode">//?       cerr &lt;&lt; &quot;ZZZ\n&quot;; //? 1</span>
       <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
     <span class="Delimiter">}</span>
   <span class="Delimiter">}</span>
 
   raise &lt;&lt; <span class="Constant">&quot;missing [&quot;</span> &lt;&lt; expected_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>curr_expected_line<span class="Delimiter">).</span>contents &lt;&lt; <span class="Constant">&quot;] &quot;</span>
-        &lt;&lt; <span class="Constant">&quot;in trace layer &quot;</span> &lt;&lt; expected_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>curr_expected_line<span class="Delimiter">).</span>label &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span>
+        &lt;&lt; <span class="Constant">&quot;in trace with label &quot;</span> &lt;&lt; expected_lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>curr_expected_line<span class="Delimiter">).</span>label &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span>
   Passed = <span class="Constant">false</span><span class="Delimiter">;</span>
   <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span>
 <span class="Delimiter">}</span>
 
-vector&lt;trace_line&gt; parse_trace<span class="Delimiter">(</span><span class="Normal">const</span> string&amp; expected<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+vector&lt;trace_line&gt; parse_trace<span class="Delimiter">(</span>const string&amp; expected<span class="Delimiter">)</span> <span class="Delimiter">{</span>
   vector&lt;string&gt; buf = split<span class="Delimiter">(</span>expected<span class="Delimiter">,</span> <span class="Constant">&quot;</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span><span class="Delimiter">);</span>
   vector&lt;trace_line&gt; result<span class="Delimiter">;</span>
-  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i &lt; SIZE<span class="Delimiter">(</span>buf<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+  for <span class="Delimiter">(</span>long long int i = <span class="Constant">0</span><span class="Delimiter">;</span> i &lt; SIZE<span class="Delimiter">(</span>buf<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
     buf<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">)</span> = trim<span class="Delimiter">(</span>buf<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">));</span>
-    <span class="Normal">if</span> <span class="Delimiter">(</span>buf<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>empty<span class="Delimiter">())</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
-    <span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> delim = buf<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>find<span class="Delimiter">(</span><span class="Constant">&quot;: &quot;</span><span class="Delimiter">);</span>
+    if <span class="Delimiter">(</span>buf<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>empty<span class="Delimiter">())</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
+    long long int delim = buf<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>find<span class="Delimiter">(</span><span class="Constant">&quot;: &quot;</span><span class="Delimiter">);</span>
     result<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>trace_line<span class="Delimiter">(</span>trim<span class="Delimiter">(</span>buf<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>substr<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">,</span> delim<span class="Delimiter">)),</span>  trim<span class="Delimiter">(</span>buf<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>substr<span class="Delimiter">(</span>delim+<span class="Constant">2</span><span class="Delimiter">))));</span>
   <span class="Delimiter">}</span>
   <span class="Identifier">return</span> result<span class="Delimiter">;</span>
@@ -497,27 +496,27 @@ vector&lt;trace_line&gt; parse_trace<span class="Delimiter">(</span><span class=
 <span class="Special">% Hide_warnings = true;</span>
 recipe main [
   run [
-    trace [a]<span class="Delimiter">,</span> [b]
+    trace <span class="Constant">1</span><span class="Delimiter">,</span> [a]<span class="Delimiter">,</span> [b]
   ]
   trace-should-contain [
-    <span class="Normal">a</span>: b
-    <span class="Normal">a</span>: d
+    a: b
+    a: d
   ]
 ]
-<span class="traceContains">+warn: missing [d] in trace layer a</span>
+<span class="traceContains">+warn: missing [d] in trace with label a</span>
 
 <span class="Delimiter">:(scenario trace_check_passes_silently)</span>
 <span class="Special">% Scenario_testing_scenario = true;</span>
 <span class="Special">% Hide_warnings = true;</span>
 recipe main [
   run [
-    trace [a]<span class="Delimiter">,</span> [b]
+    trace <span class="Constant">1</span><span class="Delimiter">,</span> [a]<span class="Delimiter">,</span> [b]
   ]
   trace-should-contain [
-    <span class="Normal">a</span>: b
+    a: b
   ]
 ]
-<span class="traceAbsent">-warn: missing [b] in trace layer a</span>
+<span class="traceAbsent">-warn: missing [b] in trace with label a</span>
 $warn: <span class="Constant">0</span>
 
 <span class="Comment">//: 'trace-should-not-contain' is like the '-' lines in our scenarios so far</span>
@@ -529,21 +528,21 @@ $warn: <span class="Constant">0</span>
 <span class="Special">% Hide_warnings = true;</span>
 recipe main [
   run [
-    trace [a]<span class="Delimiter">,</span> [b]
+    trace <span class="Constant">1</span><span class="Delimiter">,</span> [a]<span class="Delimiter">,</span> [b]
   ]
-  trace-should-<span class="Normal">not</span>-contain [
-    <span class="Normal">a</span>: b
+  trace-should-not-contain [
+    a: b
   ]
 ]
-<span class="traceContains">+warn: unexpected [b] in trace layer a</span>
+<span class="traceContains">+warn: unexpected [b] in trace with label a</span>
 
 <span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
 TRACE_SHOULD_NOT_CONTAIN<span class="Delimiter">,</span>
 <span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
 Recipe_ordinal[<span class="Constant">&quot;trace-should-not-contain&quot;</span>] = TRACE_SHOULD_NOT_CONTAIN<span class="Delimiter">;</span>
 <span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
-<span class="Normal">case</span> TRACE_SHOULD_NOT_CONTAIN: <span class="Delimiter">{</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>!Passed<span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
+case TRACE_SHOULD_NOT_CONTAIN: <span class="Delimiter">{</span>
+  if <span class="Delimiter">(</span>!Passed<span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
   check_trace_missing<span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>name<span class="Delimiter">);</span>
   <span class="Identifier">break</span><span class="Delimiter">;</span>
 <span class="Delimiter">}</span>
@@ -551,12 +550,12 @@ Recipe_ordinal[<span class="Constant">&quot;trace-should-not-contain&quot;</span
 <span class="Delimiter">:(code)</span>
 <span class="Comment">// simplified version of check_trace_contents() that emits warnings rather</span>
 <span class="Comment">// than just printing to stderr</span>
-<span class="Normal">bool</span> check_trace_missing<span class="Delimiter">(</span><span class="Normal">const</span> string&amp; in<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+bool check_trace_missing<span class="Delimiter">(</span>const string&amp; in<span class="Delimiter">)</span> <span class="Delimiter">{</span>
   Trace_stream<span class="Delimiter">-&gt;</span>newline<span class="Delimiter">();</span>
   vector&lt;trace_line&gt; lines = parse_trace<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
-  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">long</span> <span class="Normal">long</span> <span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i &lt; SIZE<span class="Delimiter">(</span>lines<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
-    <span class="Normal">if</span> <span class="Delimiter">(</span>trace_count<span class="Delimiter">(</span>lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>label<span class="Delimiter">,</span> lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>contents<span class="Delimiter">)</span> != <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
-      raise &lt;&lt; <span class="Constant">&quot;unexpected [&quot;</span> &lt;&lt; lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>contents &lt;&lt; <span class="Constant">&quot;] in trace layer &quot;</span> &lt;&lt; lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>label &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span>
+  for <span class="Delimiter">(</span>long long int i = <span class="Constant">0</span><span class="Delimiter">;</span> i &lt; SIZE<span class="Delimiter">(</span>lines<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+    if <span class="Delimiter">(</span>trace_count<span class="Delimiter">(</span>lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>label<span class="Delimiter">,</span> lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>contents<span class="Delimiter">)</span> != <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
+      raise &lt;&lt; <span class="Constant">&quot;unexpected [&quot;</span> &lt;&lt; lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>contents &lt;&lt; <span class="Constant">&quot;] in trace with label &quot;</span> &lt;&lt; lines<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">).</span>label &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span>
       Passed = <span class="Constant">false</span><span class="Delimiter">;</span>
       <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span>
     <span class="Delimiter">}</span>
@@ -568,11 +567,11 @@ Recipe_ordinal[<span class="Constant">&quot;trace-should-not-contain&quot;</span
 <span class="Special">% Scenario_testing_scenario = true;</span>
 <span class="Special">% Hide_warnings = true;</span>
 recipe main [
-  trace-should-<span class="Normal">not</span>-contain [
-    <span class="Normal">a</span>: b
+  trace-should-not-contain [
+    a: b
   ]
 ]
-<span class="traceAbsent">-warn: unexpected [b] in trace layer a</span>
+<span class="traceAbsent">-warn: unexpected [b] in trace with label a</span>
 $warn: <span class="Constant">0</span>
 
 <span class="Delimiter">:(scenario trace_negative_check_warns_on_any_unexpected_line)</span>
@@ -580,25 +579,85 @@ $warn: <span class="Constant">0</span>
 <span class="Special">% Hide_warnings = true;</span>
 recipe main [
   run [
-    trace [a]<span class="Delimiter">,</span> [d]
+    trace <span class="Constant">1</span><span class="Delimiter">,</span> [a]<span class="Delimiter">,</span> [d]
+  ]
+  trace-should-not-contain [
+    a: b
+    a: d
+  ]
+]
+<span class="traceContains">+warn: unexpected [d] in trace with label a</span>
+
+<span class="Delimiter">:(scenario trace_count_check)</span>
+recipe main [
+  run [
+    trace <span class="Constant">1</span><span class="Delimiter">,</span> [a]<span class="Delimiter">,</span> [foo]
   ]
-  trace-should-<span class="Normal">not</span>-contain [
-    <span class="Normal">a</span>: b
-    <span class="Normal">a</span>: d
+  check-trace-count-for-label <span class="Constant">1</span><span class="Delimiter">,</span> [a]
+]
+
+<span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
+CHECK_TRACE_COUNT_FOR_LABEL<span class="Delimiter">,</span>
+<span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
+Recipe_ordinal[<span class="Constant">&quot;check-trace-count-for-label&quot;</span>] = CHECK_TRACE_COUNT_FOR_LABEL<span class="Delimiter">;</span>
+<span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
+case CHECK_TRACE_COUNT_FOR_LABEL: <span class="Delimiter">{</span>
+  if <span class="Delimiter">(</span>!Passed<span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
+  if <span class="Delimiter">(</span>SIZE<span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>ingredients<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
+    raise &lt;&lt; current_recipe_name<span class="Delimiter">()</span> &lt;&lt; <span class="Constant">&quot;: 'check-trace-for-label' requires exactly two ingredients, but got '&quot;</span> &lt;&lt; current_instruction<span class="Delimiter">().</span>to_string<span class="Delimiter">()</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+    <span class="Identifier">break</span><span class="Delimiter">;</span>
+  <span class="Delimiter">}</span>
+  if <span class="Delimiter">(</span>!scalar<span class="Delimiter">(</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
+    raise &lt;&lt; current_recipe_name<span class="Delimiter">()</span> &lt;&lt; <span class="Constant">&quot;: first ingredient of 'check-trace-for-label' should be a number (count), but got &quot;</span> &lt;&lt; current_instruction<span class="Delimiter">().</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span>
+    <span class="Identifier">break</span><span class="Delimiter">;</span>
+  <span class="Delimiter">}</span>
+  long long int expected_count = ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
+  if <span class="Delimiter">(</span>!is_literal_string<span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
+    raise &lt;&lt; current_recipe_name<span class="Delimiter">()</span> &lt;&lt; <span class="Constant">&quot;: second ingredient of 'check-trace-for-label' should be a literal string (label), but got &quot;</span> &lt;&lt; current_instruction<span class="Delimiter">().</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>original_string &lt;&lt; <span class="cSpecial">'\n'</span> &lt;&lt; end<span class="Delimiter">();</span>
+    <span class="Identifier">break</span><span class="Delimiter">;</span>
+  <span class="Delimiter">}</span>
+  string label = current_instruction<span class="Delimiter">().</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>name<span class="Delimiter">;</span>
+  long long int count = trace_count<span class="Delimiter">(</span>label<span class="Delimiter">);</span>
+  if <span class="Delimiter">(</span>count != expected_count<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+    if <span class="Delimiter">(</span>Current_scenario &amp;&amp; !Scenario_testing_scenario<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+      <span class="Comment">// genuine test in a mu file</span>
+      raise &lt;&lt; <span class="Constant">&quot;</span><span class="cSpecial">\n</span><span class="Constant">F - &quot;</span> &lt;&lt; Current_scenario<span class="Delimiter">-&gt;</span>name &lt;&lt; <span class="Constant">&quot;: &quot;</span> &lt;&lt; current_recipe_name<span class="Delimiter">()</span> &lt;&lt; <span class="Constant">&quot;: expected &quot;</span> &lt;&lt; expected_count &lt;&lt; <span class="Constant">&quot; lines in trace with label &quot;</span> &lt;&lt; label &lt;&lt; <span class="Constant">&quot; in trace: &quot;</span><span class="Delimiter">;</span>
+      DUMP<span class="Delimiter">(</span>label<span class="Delimiter">);</span>
+      raise<span class="Delimiter">;</span>
+    <span class="Delimiter">}</span>
+    else <span class="Delimiter">{</span>
+      <span class="Comment">// just testing scenario support</span>
+      raise &lt;&lt; current_recipe_name<span class="Delimiter">()</span> &lt;&lt; <span class="Constant">&quot;: expected &quot;</span> &lt;&lt; expected_count &lt;&lt; <span class="Constant">&quot; lines in trace with label &quot;</span> &lt;&lt; label &lt;&lt; <span class="Constant">&quot; in trace</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; end<span class="Delimiter">();</span>
+    <span class="Delimiter">}</span>
+    if <span class="Delimiter">(</span>!Scenario_testing_scenario<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+      Passed = <span class="Constant">false</span><span class="Delimiter">;</span>
+      ++Num_failures<span class="Delimiter">;</span>
+    <span class="Delimiter">}</span>
+  <span class="Delimiter">}</span>
+  <span class="Identifier">break</span><span class="Delimiter">;</span>
+<span class="Delimiter">}</span>
+
+<span class="Delimiter">:(scenario trace_count_check_2)</span>
+<span class="Special">% Scenario_testing_scenario = true;</span>
+<span class="Special">% Hide_warnings = true;</span>
+recipe main [
+  run [
+    trace <span class="Constant">1</span><span class="Delimiter">,</span> [a]<span class="Delimiter">,</span> [foo]
   ]
+  check-trace-count-for-label <span class="Constant">2</span><span class="Delimiter">,</span> [a]
 ]
-<span class="traceContains">+warn: unexpected [d] in trace layer a</span>
+<span class="traceContains">+warn: main: expected 2 lines in trace with label a in trace</span>
 
 <span class="Comment">//: Minor detail: ignore 'system' calls in scenarios, since anything we do</span>
 <span class="Comment">//: with them is by definition impossible to test through mu.</span>
 <span class="Delimiter">:(after &quot;case _SYSTEM:&quot;)</span>
-  <span class="Normal">if</span> <span class="Delimiter">(</span>Current_scenario<span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
+  if <span class="Delimiter">(</span>Current_scenario<span class="Delimiter">)</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
 
 <span class="SalientComment">//:: Helpers</span>
 
 <span class="Delimiter">:(code)</span>
 <span class="Comment">// just for the scenarios running scenarios in C++ layers</span>
-<span class="Normal">void</span> run_mu_scenario<span class="Delimiter">(</span><span class="Normal">const</span> string&amp; form<span class="Delimiter">)</span> <span class="Delimiter">{</span>
+void run_mu_scenario<span class="Delimiter">(</span>const string&amp; form<span class="Delimiter">)</span> <span class="Delimiter">{</span>
 <span class="CommentedCode">//?   cerr &lt;&lt; form &lt;&lt; '\n'; //? 1</span>
   istringstream in<span class="Delimiter">(</span>form<span class="Delimiter">);</span>
   in &gt;&gt; std::noskipws<span class="Delimiter">;</span>
v>
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