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#!/usr/bin/python3
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a id='n403' href='#n403'>403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542
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<pre id='vimCodeElement'>
<span id="L1" class="LineNr">  1 </span><span class="Comment">//: Structured programming</span>
<span id="L2" class="LineNr">  2 </span><span class="Comment">//:</span>
<span id="L3" class="LineNr">  3 </span><span class="Comment">//: Our jump recipes are quite inconvenient to use, so Mu provides a</span>
<span id="L4" class="LineNr">  4 </span><span class="Comment">//: lightweight tool called 'transform_braces' to work in a slightly more</span>
<span id="L5" class="LineNr">  5 </span><span class="Comment">//: convenient format with nested braces:</span>
<span id="L6" class="LineNr">  6 </span><span class="Comment">//:</span>
<span id="L7" class="LineNr">  7 </span><span class="Comment">//:   {</span>
<span id="L8" class="LineNr">  8 </span><span class="Comment">//:     some instructions</span>
<span id="L9" class="LineNr">  9 </span><span class="Comment">//:     {</span>
<span id="L10" class="LineNr"> 10 </span><span class="Comment">//:       more instructions</span>
<span id="L11" class="LineNr"> 11 </span><span class="Comment">//:     }</span>
<span id="L12" class="LineNr"> 12 </span><span class="Comment">//:   }</span>
<span id="L13" class="LineNr"> 13 </span><span class="Comment">//:</span>
<span id="L14" class="LineNr"> 14 </span><span class="Comment">//: Braces are just labels, they require no special parsing. The pseudo</span>
<span id="L15" class="LineNr"> 15 </span><span class="Comment">//: instructions 'loop' and 'break' jump to just after the enclosing '{' and</span>
<span id="L16" class="LineNr"> 16 </span><span class="Comment">//: '}' respectively.</span>
<span id="L17" class="LineNr"> 17 </span><span class="Comment">//:</span>
<span id="L18" class="LineNr"> 18 </span><span class="Comment">//: Conditional and unconditional 'loop' and 'break' should give us 80% of the</span>
<span id="L19" class="LineNr"> 19 </span><span class="Comment">//: benefits of the control-flow primitives we're used to in other languages,</span>
<span id="L20" class="LineNr"> 20 </span><span class="Comment">//: like 'if', 'while', 'for', etc.</span>
<span id="L21" class="LineNr"> 21 </span>
<span id="L22" class="LineNr"> 22 </span><span class="Delimiter">:(scenarios transform)</span>
<span id="L23" class="LineNr"> 23 </span><span class="Delimiter">:(scenario brace_conversion)</span>
<span id="L24" class="LineNr"> 24 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L25" class="LineNr"> 25 </span>  <span class="Delimiter">{</span>
<span id="L26" class="LineNr"> 26 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span>
<span id="L27" class="LineNr"> 27 </span>  <span class="Conceal">¦</span> <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L28" class="LineNr"> 28 </span>  <span class="Delimiter">}</span>
<span id="L29" class="LineNr"> 29 </span>]
<span id="L30" class="LineNr"> 30 </span><span class="traceContains">+transform: --- <a href='012transform.cc.html#L99'>transform</a> braces for <a href='010vm.cc.html#L19'>recipe</a> <a href='000organization.cc.html#L113'>main</a></span>
<span id="L31" class="LineNr"> 31 </span><span class="traceContains">+transform: jump 1:offset</span>
<span id="L32" class="LineNr"> 32 </span><span class="traceContains">+transform: copy ...</span>
<span id="L33" class="LineNr"> 33 </span>
<span id="L34" class="LineNr"> 34 </span><span class="Delimiter">:(before &quot;End Instruction Modifying Transforms&quot;)</span>
<span id="L35" class="LineNr"> 35 </span>Transform<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='040brace.cc.html#L38'>transform_braces</a><span class="Delimiter">);</span>  <span class="Comment">// idempotent</span>
<span id="L36" class="LineNr"> 36 </span>
<span id="L37" class="LineNr"> 37 </span><span class="Delimiter">:(code)</span>
<span id="L38" class="LineNr"> 38 </span><span class="Normal">void</span> <a href='040brace.cc.html#L38'>transform_braces</a><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="L39" class="LineNr"> 39 </span>  <span class="Normal">const</span> <span class="Normal">int</span> OPEN = <span class="Constant">0</span><span class="Delimiter">,</span> CLOSE = <span class="Constant">1</span><span class="Delimiter">;</span>
<span id="L40" class="LineNr"> 40 </span>  <span class="Comment">// use signed integer for step index because we'll be doing arithmetic on it</span>
<span id="L41" class="LineNr"> 41 </span>  list&lt;pair&lt;<span class="Normal">int</span><span class="Comment">/*</span><span class="Comment">OPEN/CLOSE</span><span class="Comment">*/</span><span class="Delimiter">,</span> <span class="Comment">/*</span><span class="Comment">step</span><span class="Comment">*/</span><span class="Normal">int</span>&gt; &gt; braces<span class="Delimiter">;</span>
<span id="L42" class="LineNr"> 42 </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;--- <a href='012transform.cc.html#L99'>transform</a> braces for <a href='010vm.cc.html#L19'>recipe</a> &quot;</span> &lt;&lt; get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name &lt;&lt; <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
<span id="L43" class="LineNr"> 43 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> index = <span class="Constant">0</span><span class="Delimiter">;</span>  index &lt; <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>steps<span class="Delimiter">);</span>  ++index<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L44" class="LineNr"> 44 </span>  <span class="Conceal">¦</span> <span class="Normal">const</span> instruction&amp; inst = get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>steps<span class="Delimiter">.</span>at<span class="Delimiter">(</span>index<span class="Delimiter">);</span>
<span id="L45" class="LineNr"> 45 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>label == <span class="Constant">&quot;{&quot;</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L46" class="LineNr"> 46 </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; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;push (open, &quot;</span> &lt;&lt; index &lt;&lt; <span class="Constant">&quot;)&quot;</span> &lt;&lt; <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
<span id="L47" class="LineNr"> 47 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> braces<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>pair&lt;<span class="Normal">int</span><span class="Delimiter">,</span><span class="Normal">int</span>&gt;<span class="Delimiter">(</span>OPEN<span class="Delimiter">,</span> index<span class="Delimiter">));</span>
<span id="L48" class="LineNr"> 48 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
<span id="L49" class="LineNr"> 49 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>label == <span class="Constant">&quot;}&quot;</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L50" class="LineNr"> 50 </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;push (close, &quot;</span> &lt;&lt; index &lt;&lt; <span class="Constant">&quot;)&quot;</span> &lt;&lt; <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
<span id="L51" class="LineNr"> 51 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> braces<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>pair&lt;<span class="Normal">int</span><span class="Delimiter">,</span><span class="Normal">int</span>&gt;<span class="Delimiter">(</span>CLOSE<span class="Delimiter">,</span> index<span class="Delimiter">));</span>
<span id="L52" class="LineNr"> 52 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
<span id="L53" class="LineNr"> 53 </span>  <span class="Delimiter">}</span>
<span id="L54" class="LineNr"> 54 </span>  stack&lt;<span class="Comment">/*</span><span class="Comment">step</span><span class="Comment">*/</span><span class="Normal">int</span>&gt; open_braces<span class="Delimiter">;</span>
<span id="L55" class="LineNr"> 55 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> index = <span class="Constant">0</span><span class="Delimiter">;</span>  index &lt; <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>steps<span class="Delimiter">);</span>  ++index<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L56" class="LineNr"> 56 </span>  <span class="Conceal">¦</span> instruction&amp; inst = get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>steps<span class="Delimiter">.</span>at<span class="Delimiter">(</span>index<span class="Delimiter">);</span>
<span id="L57" class="LineNr"> 57 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>label == <span class="Constant">&quot;{&quot;</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L58" class="LineNr"> 58 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> open_braces<span class="Delimiter">.</span>push<span class="Delimiter">(</span>index<span class="Delimiter">);</span>
<span id="L59" class="LineNr"> 59 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
<span id="L60" class="LineNr"> 60 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
<span id="L61" class="LineNr"> 61 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>label == <span class="Constant">&quot;}&quot;</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L62" class="LineNr"> 62 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>open_braces<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span>
<span id="L63" class="LineNr"> 63 </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>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;unbalanced '}'</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="L64" class="LineNr"> 64 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
<span id="L65" class="LineNr"> 65 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
<span id="L66" class="LineNr"> 66 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> open_braces<span class="Delimiter">.</span>pop<span class="Delimiter">();</span>
<span id="L67" class="LineNr"> 67 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
<span id="L68" class="LineNr"> 68 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
<span id="L69" class="LineNr"> 69 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>is_label<span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
<span id="L70" class="LineNr"> 70 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>name != <span class="Constant">&quot;loop&quot;</span>
<span id="L71" class="LineNr"> 71 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span>&amp;&amp; inst<span class="Delimiter">.</span>name != <span class="Constant">&quot;loop-if&quot;</span>
<span id="L72" class="LineNr"> 72 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span>&amp;&amp; inst<span class="Delimiter">.</span>name != <span class="Constant">&quot;loop-unless&quot;</span>
<span id="L73" class="LineNr"> 73 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span>&amp;&amp; inst<span class="Delimiter">.</span>name != <span class="Constant">&quot;break&quot;</span>
<span id="L74" class="LineNr"> 74 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span>&amp;&amp; inst<span class="Delimiter">.</span>name != <span class="Constant">&quot;break-if&quot;</span>
<span id="L75" class="LineNr"> 75 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span>&amp;&amp; inst<span class="Delimiter">.</span>name != <span class="Constant">&quot;break-unless&quot;</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L76" class="LineNr"> 76 </span>  <span class="Conceal">¦</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; inst<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot; ...&quot;</span> &lt;&lt; <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
<span id="L77" class="LineNr"> 77 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
<span id="L78" class="LineNr"> 78 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
<span id="L79" class="LineNr"> 79 </span>  <span class="Conceal">¦</span> <span class="Comment">// check for errors</span>
<span id="L80" class="LineNr"> 80 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>name<span class="Delimiter">.</span>find<span class="Delimiter">(</span><span class="Constant">&quot;-if&quot;</span><span class="Delimiter">)</span> != string::npos || inst<span class="Delimiter">.</span>name<span class="Delimiter">.</span>find<span class="Delimiter">(</span><span class="Constant">&quot;-unless&quot;</span><span class="Delimiter">)</span> != string::npos<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L81" class="LineNr"> 81 </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>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span>
<span id="L82" class="LineNr"> 82 </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>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'&quot;</span> &lt;&lt; inst<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot;' expects 1 or 2 ingredients, but got none</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="L83" class="LineNr"> 83 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
<span id="L84" class="LineNr"> 84 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
<span id="L85" class="LineNr"> 85 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
<span id="L86" class="LineNr"> 86 </span>  <span class="Conceal">¦</span> <span class="Comment">// update instruction operation</span>
<span id="L87" class="LineNr"> 87 </span>  <span class="Conceal">¦</span> string old_name = inst<span class="Delimiter">.</span>name<span class="Delimiter">;</span>  <span class="Comment">// save a copy</span>
<span id="L88" class="LineNr"> 88 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>name<span class="Delimiter">.</span>find<span class="Delimiter">(</span><span class="Constant">&quot;-if&quot;</span><span class="Delimiter">)</span> != string::npos<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L89" class="LineNr"> 89 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> inst<span class="Delimiter">.</span>name = <span class="Constant">&quot;jump-if&quot;</span><span class="Delimiter">;</span>
<span id="L90" class="LineNr"> 90 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> inst<span class="Delimiter">.</span>operation = JUMP_IF<span class="Delimiter">;</span>
<span id="L91" class="LineNr"> 91 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
<span id="L92" class="LineNr"> 92 </span>  <span class="Conceal">¦</span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>name<span class="Delimiter">.</span>find<span class="Delimiter">(</span><span class="Constant">&quot;-unless&quot;</span><span class="Delimiter">)</span> != string::npos<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L93" class="LineNr"> 93 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> inst<span class="Delimiter">.</span>name = <span class="Constant">&quot;jump-unless&quot;</span><span class="Delimiter">;</span>
<span id="L94" class="LineNr"> 94 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> inst<span class="Delimiter">.</span>operation = JUMP_UNLESS<span class="Delimiter">;</span>
<span id="L95" class="LineNr"> 95 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
<span id="L96" class="LineNr"> 96 </span>  <span class="Conceal">¦</span> <span class="Normal">else</span> <span class="Delimiter">{</span>
<span id="L97" class="LineNr"> 97 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> inst<span class="Delimiter">.</span>name = <span class="Constant">&quot;jump&quot;</span><span class="Delimiter">;</span>
<span id="L98" class="LineNr"> 98 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> inst<span class="Delimiter">.</span>operation = JUMP<span class="Delimiter">;</span>
<span id="L99" class="LineNr"> 99 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
<span id="L100" class="LineNr">100 </span>  <span class="Conceal">¦</span> <span class="Comment">// check for explicitly provided targets</span>
<span id="L101" class="LineNr">101 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>name<span class="Delimiter">.</span>find<span class="Delimiter">(</span><span class="Constant">&quot;-if&quot;</span><span class="Delimiter">)</span> != string::npos || inst<span class="Delimiter">.</span>name<span class="Delimiter">.</span>find<span class="Delimiter">(</span><span class="Constant">&quot;-unless&quot;</span><span class="Delimiter">)</span> != string::npos<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L102" class="LineNr">102 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Comment">// conditional branches check arg 1</span>
<span id="L103" class="LineNr">103 </span>  <span class="Conceal">¦</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>inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">)</span> &gt; <span class="Constant">1</span> &amp;&amp; is_literal<span class="Delimiter">(</span>inst<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>
<span id="L104" class="LineNr">104 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</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; inst<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">' '</span> &lt;&lt; inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">).</span>name &lt;&lt; <span class="Constant">&quot;:offset</span><span class="Constant">&quot; &lt;&lt; end();</span>
<span id="L105" class="LineNr">105 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
<span id="L106" class="LineNr">106 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
<span id="L107" class="LineNr">107 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
<span id="L108" class="LineNr">108 </span>  <span class="Conceal">¦</span> <span class="Normal">else</span> <span class="Delimiter">{</span>
<span id="L109" class="LineNr">109 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Comment">// unconditional branches check arg 0</span>
<span id="L110" class="LineNr">110 </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>empty<span class="Delimiter">()</span> &amp;&amp; is_literal<span class="Delimiter">(</span>inst<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>
<span id="L111" class="LineNr">111 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</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;jump &quot;</span> &lt;&lt; inst<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;:offset</span><span class="Constant">&quot; &lt;&lt; end();</span>
<span id="L112" class="LineNr">112 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
<span id="L113" class="LineNr">113 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
<span id="L114" class="LineNr">114 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
<span id="L115" class="LineNr">115 </span>  <span class="Conceal">¦</span> <span class="Comment">// if implicit, compute target</span>
<span id="L116" class="LineNr">116 </span>  <span class="Conceal">¦</span> reagent target<span class="Delimiter">;</span>
<span id="L117" class="LineNr">117 </span>  <span class="Conceal">¦</span> target<span class="Delimiter">.</span>type = <span class="Normal">new</span> type_tree<span class="Delimiter">(</span><span class="Constant">&quot;offset&quot;</span><span class="Delimiter">);</span>
<span id="L118" class="LineNr">118 </span>  <span class="Conceal">¦</span> target<span class="Delimiter">.</span><a href='010vm.cc.html#L65'>set_value</a><span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
<span id="L119" class="LineNr">119 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>open_braces<span class="Delimiter">.</span>empty<span class="Delimiter">())</span>
<span id="L120" class="LineNr">120 </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>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'&quot;</span> &lt;&lt; old_name &lt;&lt; <span class="Constant">&quot;' needs a '{' before</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="L121" class="LineNr">121 </span>  <span class="Conceal">¦</span> <span class="Normal">else</span> <span class="Normal">if</span> <span class="Delimiter">(</span>old_name<span class="Delimiter">.</span>find<span class="Delimiter">(</span><span class="Constant">&quot;loop&quot;</span><span class="Delimiter">)</span> != string::npos<span class="Delimiter">)</span>
<span id="L122" class="LineNr">122 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> target<span class="Delimiter">.</span><a href='010vm.cc.html#L65'>set_value</a><span class="Delimiter">(</span>open_braces<span class="Delimiter">.</span>top<span class="Delimiter">()</span>-index<span class="Delimiter">);</span>
<span id="L123" class="LineNr">123 </span>  <span class="Conceal">¦</span> <span class="Normal">else</span>  <span class="Comment">// break instruction</span>
<span id="L124" class="LineNr">124 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> target<span class="Delimiter">.</span><a href='010vm.cc.html#L65'>set_value</a><span class="Delimiter">(</span><a href='040brace.cc.html#L136'>matching_brace</a><span class="Delimiter">(</span>open_braces<span class="Delimiter">.</span>top<span class="Delimiter">(),</span> braces<span class="Delimiter">,</span> r<span class="Delimiter">)</span> - index - <span class="Constant">1</span><span class="Delimiter">);</span>
<span id="L125" class="LineNr">125 </span>  <span class="Conceal">¦</span> inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>target<span class="Delimiter">);</span>
<span id="L126" class="LineNr">126 </span>  <span class="Conceal">¦</span> <span class="Comment">// log computed target</span>
<span id="L127" class="LineNr">127 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>name == <span class="Constant">&quot;jump&quot;</span><span class="Delimiter">)</span>
<span id="L128" class="LineNr">128 </span>  <span class="Conceal">¦</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;jump &quot;</span> &lt;&lt; no_scientific<span class="Delimiter">(</span>target<span class="Delimiter">.</span>value<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;:offset</span><span class="Constant">&quot; &lt;&lt; end();</span>
<span id="L129" class="LineNr">129 </span>  <span class="Conceal">¦</span> <span class="Normal">else</span>
<span id="L130" class="LineNr">130 </span>  <span class="Conceal">¦</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; inst<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">' '</span> &lt;&lt; inst<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> &lt;&lt; no_scientific<span class="Delimiter">(</span>target<span class="Delimiter">.</span>value<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;:offset</span><span class="Constant">&quot; &lt;&lt; end();</span>
<span id="L131" class="LineNr">131 </span>  <span class="Delimiter">}</span>
<span id="L132" class="LineNr">132 </span><span class="Delimiter">}</span>
<span id="L133" class="LineNr">133 </span>
<span id="L134" class="LineNr">134 </span><span class="Comment">// returns a signed integer not just so that we can return -1 but also to</span>
<span id="L135" class="LineNr">135 </span><span class="Comment">// enable future signed arithmetic</span>
<span id="L136" class="LineNr">136 </span><span class="Normal">int</span> <a href='040brace.cc.html#L136'>matching_brace</a><span class="Delimiter">(</span><span class="Normal">int</span> index<span class="Delimiter">,</span> <span class="Normal">const</span> list&lt;pair&lt;<span class="Normal">int</span><span class="Delimiter">,</span> <span class="Normal">int</span>&gt; &gt;&amp; braces<span class="Delimiter">,</span> <a href='010vm.cc.html#L14'>recipe_ordinal</a> r<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L137" class="LineNr">137 </span>  <span class="Normal">int</span> stacksize = <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L138" class="LineNr">138 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span>list&lt;pair&lt;<span class="Normal">int</span><span class="Delimiter">,</span> <span class="Normal">int</span>&gt; &gt;::const_iterator p = braces<span class="Delimiter">.</span>begin<span class="Delimiter">();</span>  p != braces<span class="Delimiter">.</span><a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>  ++p<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L139" class="LineNr">139 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>p<span class="Delimiter">-&gt;</span>second &lt; index<span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
<span id="L140" class="LineNr">140 </span>  <span class="Conceal">¦</span> stacksize += <span class="Delimiter">(</span>p<span class="Delimiter">-&gt;</span>first ? <span class="Constant">1</span> : -<span class="Constant">1</span><span class="Delimiter">);</span>
<span id="L141" class="LineNr">141 </span>  <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>stacksize == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Identifier">return</span> p<span class="Delimiter">-&gt;</span>second<span class="Delimiter">;</span>
<span id="L142" class="LineNr">142 </span>  <span class="Delimiter">}</span>
<span id="L143" class="LineNr">143 </span>  <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>name<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;unbalanced '{'</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="L144" class="LineNr">144 </span>  <span class="Identifier">return</span> <a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">).</span>steps<span class="Delimiter">);</span>  <span class="Comment">// exit current routine</span>
<span id="L145" class="LineNr">145 </span><span class="Delimiter">}</span>
<span id="L146" class="LineNr">146 </span>
<span id="L147" class="LineNr">147 </span><span class="Delimiter">:(scenario loop)</span>
<span id="L148" class="LineNr">148 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L149" class="LineNr">149 </span>  <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L150" class="LineNr">150 </span>  <span class="Constant">2</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L151" class="LineNr">151 </span>  <span class="Delimiter">{</span>
<span id="L152" class="LineNr">152 </span>  <span class="Conceal">¦</span> <span class="Constant">3</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L153" class="LineNr">153 </span>  <span class="Conceal">¦</span> loop
<span id="L154" class="LineNr">154 </span>  <span class="Delimiter">}</span>
<span id="L155" class="LineNr">155 </span>]
<span id="L156" class="LineNr">156 </span><span class="traceContains">+transform: --- <a href='012transform.cc.html#L99'>transform</a> braces for <a href='010vm.cc.html#L19'>recipe</a> <a href='000organization.cc.html#L113'>main</a></span>
<span id="L157" class="LineNr">157 </span><span class="traceContains">+transform: copy ...</span>
<span id="L158" class="LineNr">158 </span><span class="traceContains">+transform: copy ...</span>
<span id="L159" class="LineNr">159 </span><span class="traceContains">+transform: copy ...</span>
<span id="L160" class="LineNr">160 </span><span class="traceContains">+transform: jump -2:offset</span>
<span id="L161" class="LineNr">161 </span>
<span id="L162" class="LineNr">162 </span><span class="Delimiter">:(scenario break_empty_block)</span>
<span id="L163" class="LineNr">163 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L164" class="LineNr">164 </span>  <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L165" class="LineNr">165 </span>  <span class="Delimiter">{</span>
<span id="L166" class="LineNr">166 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span>
<span id="L167" class="LineNr">167 </span>  <span class="Delimiter">}</span>
<span id="L168" class="LineNr">168 </span>]
<span id="L169" class="LineNr">169 </span><span class="traceContains">+transform: --- <a href='012transform.cc.html#L99'>transform</a> braces for <a href='010vm.cc.html#L19'>recipe</a> <a href='000organization.cc.html#L113'>main</a></span>
<span id="L170" class="LineNr">170 </span><span class="traceContains">+transform: copy ...</span>
<span id="L171" class="LineNr">171 </span><span class="traceContains">+transform: jump 0:offset</span>
<span id="L172" class="LineNr">172 </span>
<span id="L173" class="LineNr">173 </span><span class="Delimiter">:(scenario break_cascading)</span>
<span id="L174" class="LineNr">174 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L175" class="LineNr">175 </span>  <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L176" class="LineNr">176 </span>  <span class="Delimiter">{</span>
<span id="L177" class="LineNr">177 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span>
<span id="L178" class="LineNr">178 </span>  <span class="Delimiter">}</span>
<span id="L179" class="LineNr">179 </span>  <span class="Delimiter">{</span>
<span id="L180" class="LineNr">180 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span>
<span id="L181" class="LineNr">181 </span>  <span class="Delimiter">}</span>
<span id="L182" class="LineNr">182 </span>]
<span id="L183" class="LineNr">183 </span><span class="traceContains">+transform: --- <a href='012transform.cc.html#L99'>transform</a> braces for <a href='010vm.cc.html#L19'>recipe</a> <a href='000organization.cc.html#L113'>main</a></span>
<span id="L184" class="LineNr">184 </span><span class="traceContains">+transform: copy ...</span>
<span id="L185" class="LineNr">185 </span><span class="traceContains">+transform: jump 0:offset</span>
<span id="L186" class="LineNr">186 </span><span class="traceContains">+transform: jump 0:offset</span>
<span id="L187" class="LineNr">187 </span>
<span id="L188" class="LineNr">188 </span><span class="Delimiter">:(scenario break_cascading_2)</span>
<span id="L189" class="LineNr">189 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L190" class="LineNr">190 </span>  <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L191" class="LineNr">191 </span>  <span class="Constant">2</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L192" class="LineNr">192 </span>  <span class="Delimiter">{</span>
<span id="L193" class="LineNr">193 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span>
<span id="L194" class="LineNr">194 </span>  <span class="Conceal">¦</span> <span class="Constant">3</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L195" class="LineNr">195 </span>  <span class="Delimiter">}</span>
<span id="L196" class="LineNr">196 </span>  <span class="Delimiter">{</span>
<span id="L197" class="LineNr">197 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span>
<span id="L198" class="LineNr">198 </span>  <span class="Delimiter">}</span>
<span id="L199" class="LineNr">199 </span>]
<span id="L200" class="LineNr">200 </span><span class="traceContains">+transform: --- <a href='012transform.cc.html#L99'>transform</a> braces for <a href='010vm.cc.html#L19'>recipe</a> <a href='000organization.cc.html#L113'>main</a></span>
<span id="L201" class="LineNr">201 </span><span class="traceContains">+transform: copy ...</span>
<span id="L202" class="LineNr">202 </span><span class="traceContains">+transform: copy ...</span>
<span id="L203" class="LineNr">203 </span><span class="traceContains">+transform: jump 1:offset</span>
<span id="L204" class="LineNr">204 </span><span class="traceContains">+transform: copy ...</span>
<span id="L205" class="LineNr">205 </span><span class="traceContains">+transform: jump 0:offset</span>
<span id="L206" class="LineNr">206 </span>
<span id="L207" class="LineNr">207 </span><span class="Delimiter">:(scenario break_if)</span>
<span id="L208" class="LineNr">208 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L209" class="LineNr">209 </span>  <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L210" class="LineNr">210 </span>  <span class="Constant">2</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L211" class="LineNr">211 </span>  <span class="Delimiter">{</span>
<span id="L212" class="LineNr">212 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span>-<span class="Normal">if</span> <span class="Constant">2</span>:num
<span id="L213" class="LineNr">213 </span>  <span class="Conceal">¦</span> <span class="Constant">3</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L214" class="LineNr">214 </span>  <span class="Delimiter">}</span>
<span id="L215" class="LineNr">215 </span>  <span class="Delimiter">{</span>
<span id="L216" class="LineNr">216 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span>
<span id="L217" class="LineNr">217 </span>  <span class="Delimiter">}</span>
<span id="L218" class="LineNr">218 </span>]
<span id="L219" class="LineNr">219 </span><span class="traceContains">+transform: --- <a href='012transform.cc.html#L99'>transform</a> braces for <a href='010vm.cc.html#L19'>recipe</a> <a href='000organization.cc.html#L113'>main</a></span>
<span id="L220" class="LineNr">220 </span><span class="traceContains">+transform: copy ...</span>
<span id="L221" class="LineNr">221 </span><span class="traceContains">+transform: copy ...</span>
<span id="L222" class="LineNr">222 </span><span class="traceContains">+transform: jump-if 2, 1:offset</span>
<span id="L223" class="LineNr">223 </span><span class="traceContains">+transform: copy ...</span>
<span id="L224" class="LineNr">224 </span><span class="traceContains">+transform: jump 0:offset</span>
<span id="L225" class="LineNr">225 </span>
<span id="L226" class="LineNr">226 </span><span class="Delimiter">:(scenario break_nested)</span>
<span id="L227" class="LineNr">227 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L228" class="LineNr">228 </span>  <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L229" class="LineNr">229 </span>  <span class="Delimiter">{</span>
<span id="L230" class="LineNr">230 </span>  <span class="Conceal">¦</span> <span class="Constant">2</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L231" class="LineNr">231 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span>
<span id="L232" class="LineNr">232 </span>  <span class="Conceal">¦</span> <span class="Delimiter">{</span>
<span id="L233" class="LineNr">233 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Constant">3</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L234" class="LineNr">234 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
<span id="L235" class="LineNr">235 </span>  <span class="Conceal">¦</span> <span class="Constant">4</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L236" class="LineNr">236 </span>  <span class="Delimiter">}</span>
<span id="L237" class="LineNr">237 </span>]
<span id="L238" class="LineNr">238 </span><span class="traceContains">+transform: jump 4:offset</span>
<span id="L239" class="LineNr">239 </span>
<span id="L240" class="LineNr">240 </span><span class="Delimiter">:(scenario break_nested_degenerate)</span>
<span id="L241" class="LineNr">241 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L242" class="LineNr">242 </span>  <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L243" class="LineNr">243 </span>  <span class="Delimiter">{</span>
<span id="L244" class="LineNr">244 </span>  <span class="Conceal">¦</span> <span class="Constant">2</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L245" class="LineNr">245 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span>
<span id="L246" class="LineNr">246 </span>  <span class="Conceal">¦</span> <span class="Delimiter">{</span>
<span id="L247" class="LineNr">247 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
<span id="L248" class="LineNr">248 </span>  <span class="Conceal">¦</span> <span class="Constant">4</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L249" class="LineNr">249 </span>  <span class="Delimiter">}</span>
<span id="L250" class="LineNr">250 </span>]
<span id="L251" class="LineNr">251 </span><span class="traceContains">+transform: jump 3:offset</span>
<span id="L252" class="LineNr">252 </span>
<span id="L253" class="LineNr">253 </span><span class="Delimiter">:(scenario break_nested_degenerate_2)</span>
<span id="L254" class="LineNr">254 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L255" class="LineNr">255 </span>  <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L256" class="LineNr">256 </span>  <span class="Delimiter">{</span>
<span id="L257" class="LineNr">257 </span>  <span class="Conceal">¦</span> <span class="Constant">2</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L258" class="LineNr">258 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span>
<span id="L259" class="LineNr">259 </span>  <span class="Conceal">¦</span> <span class="Delimiter">{</span>
<span id="L260" class="LineNr">260 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
<span id="L261" class="LineNr">261 </span>  <span class="Delimiter">}</span>
<span id="L262" class="LineNr">262 </span>]
<span id="L263" class="LineNr">263 </span><span class="traceContains">+transform: jump 2:offset</span>
<span id="L264" class="LineNr">264 </span>
<span id="L265" class="LineNr">265 </span><span class="Delimiter">:(scenario break_label)</span>
<span id="L266" class="LineNr">266 </span><span class="Special">% Hide_errors = true;</span>
<span id="L267" class="LineNr">267 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L268" class="LineNr">268 </span>  <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L269" class="LineNr">269 </span>  <span class="Delimiter">{</span>
<span id="L270" class="LineNr">270 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span> <span class="Constant">+foo:offset</span>
<span id="L271" class="LineNr">271 </span>  <span class="Delimiter">}</span>
<span id="L272" class="LineNr">272 </span>]
<span id="L273" class="LineNr">273 </span><span class="traceContains">+transform: jump +foo:offset</span>
<span id="L274" class="LineNr">274 </span>
<span id="L275" class="LineNr">275 </span><span class="Delimiter">:(scenario break_unless)</span>
<span id="L276" class="LineNr">276 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L277" class="LineNr">277 </span>  <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L278" class="LineNr">278 </span>  <span class="Constant">2</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L279" class="LineNr">279 </span>  <span class="Delimiter">{</span>
<span id="L280" class="LineNr">280 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span>-unless <span class="Constant">2</span>:num
<span id="L281" class="LineNr">281 </span>  <span class="Conceal">¦</span> <span class="Constant">3</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L282" class="LineNr">282 </span>  <span class="Delimiter">}</span>
<span id="L283" class="LineNr">283 </span>]
<span id="L284" class="LineNr">284 </span><span class="traceContains">+transform: --- <a href='012transform.cc.html#L99'>transform</a> braces for <a href='010vm.cc.html#L19'>recipe</a> <a href='000organization.cc.html#L113'>main</a></span>
<span id="L285" class="LineNr">285 </span><span class="traceContains">+transform: copy ...</span>
<span id="L286" class="LineNr">286 </span><span class="traceContains">+transform: copy ...</span>
<span id="L287" class="LineNr">287 </span><span class="traceContains">+transform: jump-unless 2, 1:offset</span>
<span id="L288" class="LineNr">288 </span><span class="traceContains">+transform: copy ...</span>
<span id="L289" class="LineNr">289 </span>
<span id="L290" class="LineNr">290 </span><span class="Delimiter">:(scenario loop_unless)</span>
<span id="L291" class="LineNr">291 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L292" class="LineNr">292 </span>  <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L293" class="LineNr">293 </span>  <span class="Constant">2</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L294" class="LineNr">294 </span>  <span class="Delimiter">{</span>
<span id="L295" class="LineNr">295 </span>  <span class="Conceal">¦</span> loop-unless <span class="Constant">2</span>:num
<span id="L296" class="LineNr">296 </span>  <span class="Conceal">¦</span> <span class="Constant">3</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L297" class="LineNr">297 </span>  <span class="Delimiter">}</span>
<span id="L298" class="LineNr">298 </span>]
<span id="L299" class="LineNr">299 </span><span class="traceContains">+transform: --- <a href='012transform.cc.html#L99'>transform</a> braces for <a href='010vm.cc.html#L19'>recipe</a> <a href='000organization.cc.html#L113'>main</a></span>
<span id="L300" class="LineNr">300 </span><span class="traceContains">+transform: copy ...</span>
<span id="L301" class="LineNr">301 </span><span class="traceContains">+transform: copy ...</span>
<span id="L302" class="LineNr">302 </span><span class="traceContains">+transform: jump-unless 2, -1:offset</span>
<span id="L303" class="LineNr">303 </span><span class="traceContains">+transform: copy ...</span>
<span id="L304" class="LineNr">304 </span>
<span id="L305" class="LineNr">305 </span><span class="Delimiter">:(scenario loop_nested)</span>
<span id="L306" class="LineNr">306 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L307" class="LineNr">307 </span>  <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L308" class="LineNr">308 </span>  <span class="Delimiter">{</span>
<span id="L309" class="LineNr">309 </span>  <span class="Conceal">¦</span> <span class="Constant">2</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L310" class="LineNr">310 </span>  <span class="Conceal">¦</span> <span class="Delimiter">{</span>
<span id="L311" class="LineNr">311 </span>  <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Constant">3</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L312" class="LineNr">312 </span>  <span class="Conceal">¦</span> <span class="Delimiter">}</span>
<span id="L313" class="LineNr">313 </span>  <span class="Conceal">¦</span> loop-<span class="Normal">if</span> <span class="Constant">4</span>:<span class="Normal">bool</span>
<span id="L314" class="LineNr">314 </span>  <span class="Conceal">¦</span> <span class="Constant">5</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L315" class="LineNr">315 </span>  <span class="Delimiter">}</span>
<span id="L316" class="LineNr">316 </span>]
<span id="L317" class="LineNr">317 </span><span class="traceContains">+transform: --- <a href='012transform.cc.html#L99'>transform</a> braces for <a href='010vm.cc.html#L19'>recipe</a> <a href='000organization.cc.html#L113'>main</a></span>
<span id="L318" class="LineNr">318 </span><span class="traceContains">+transform: jump-if 4, -5:offset</span>
<span id="L319" class="LineNr">319 </span>
<span id="L320" class="LineNr">320 </span><span class="Delimiter">:(scenario loop_label)</span>
<span id="L321" class="LineNr">321 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L322" class="LineNr">322 </span>  <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L323" class="LineNr">323 </span>  +foo
<span id="L324" class="LineNr">324 </span>  <span class="Constant">2</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L325" class="LineNr">325 </span>]
<span id="L326" class="LineNr">326 </span><span class="traceContains">+transform: --- <a href='012transform.cc.html#L99'>transform</a> braces for <a href='010vm.cc.html#L19'>recipe</a> <a href='000organization.cc.html#L113'>main</a></span>
<span id="L327" class="LineNr">327 </span><span class="traceContains">+transform: copy ...</span>
<span id="L328" class="LineNr">328 </span><span class="traceContains">+transform: copy ...</span>
<span id="L329" class="LineNr">329 </span>
<span id="L330" class="LineNr">330 </span><span class="Comment">//: test how things actually run</span>
<span id="L331" class="LineNr">331 </span><span class="Delimiter">:(scenarios run)</span>
<span id="L332" class="LineNr">332 </span><span class="Delimiter">:(scenario brace_conversion_and_run)</span>
<span id="L333" class="LineNr">333 </span><span class="muRecipe">def</span> test-factorial [
<span id="L334" class="LineNr">334 </span>  <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">5</span>
<span id="L335" class="LineNr">335 </span>  <span class="Constant">2</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">1</span>
<span id="L336" class="LineNr">336 </span>  <span class="Delimiter">{</span>
<span id="L337" class="LineNr">337 </span>  <span class="Conceal">¦</span> <span class="Constant">3</span>:<span class="Normal">bool</span><span class="Special"> &lt;- </span>equal <span class="Constant">1</span>:num<span class="Delimiter">,</span> <span class="Constant">1</span>
<span id="L338" class="LineNr">338 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span>-<span class="Normal">if</span> <span class="Constant">3</span>:<span class="Normal">bool</span>
<span id="L339" class="LineNr">339 </span><span class="Comment">#    $print 1:num</span>
<span id="L340" class="LineNr">340 </span>  <span class="Conceal">¦</span> <span class="Constant">2</span>:num<span class="Special"> &lt;- </span>multiply <span class="Constant">2</span>:num<span class="Delimiter">,</span> <span class="Constant">1</span>:num
<span id="L341" class="LineNr">341 </span>  <span class="Conceal">¦</span> <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>subtract <span class="Constant">1</span>:num<span class="Delimiter">,</span> <span class="Constant">1</span>
<span id="L342" class="LineNr">342 </span>  <span class="Conceal">¦</span> loop
<span id="L343" class="LineNr">343 </span>  <span class="Delimiter">}</span>
<span id="L344" class="LineNr">344 </span>  <span class="Constant">4</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">2</span>:num  <span class="Comment"># trigger a read</span>
<span id="L345" class="LineNr">345 </span>]
<span id="L346" class="LineNr">346 </span><span class="traceContains">+mem: location 2 is 120</span>
<span id="L347" class="LineNr">347 </span>
<span id="L348" class="LineNr">348 </span><span class="Delimiter">:(scenario break_outside_braces_fails)</span>
<span id="L349" class="LineNr">349 </span><span class="Special">% Hide_errors = true;</span>
<span id="L350" class="LineNr">350 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L351" class="LineNr">351 </span>  <span class="Identifier">break</span>
<span id="L352" class="LineNr">352 </span>]
<span id="L353" class="LineNr">353 </span><span class="traceContains">+error: <a href='000organization.cc.html#L113'>main</a>: 'break' needs a '{' before</span>
<span id="L354" class="LineNr">354 </span>
<span id="L355" class="LineNr">355 </span><span class="Delimiter">:(scenario break_conditional_without_ingredient_fails)</span>
<span id="L356" class="LineNr">356 </span><span class="Special">% Hide_errors = true;</span>
<span id="L357" class="LineNr">357 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L358" class="LineNr">358 </span>  <span class="Delimiter">{</span>
<span id="L359" class="LineNr">359 </span>  <span class="Conceal">¦</span> <span class="Identifier">break</span>-<span class="Normal">if</span>
<span id="L360" class="LineNr">360 </span>  <span class="Delimiter">}</span>
<span id="L361" class="LineNr">361 </span>]
<span id="L362" class="LineNr">362 </span><span class="traceContains">+error: <a href='000organization.cc.html#L113'>main</a>: 'break-if' expects 1 or 2 ingredients, but got none</span>
<span id="L363" class="LineNr">363 </span>
<span id="L364" class="LineNr">364 </span><span class="Comment">//: Using break we can now implement conditional returns.</span>
<span id="L365" class="LineNr">365 </span>
<span id="L366" class="LineNr">366 </span><span class="Delimiter">:(scenario return_if)</span>
<span id="L367" class="LineNr">367 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L368" class="LineNr">368 </span>  <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>test1
<span id="L369" class="LineNr">369 </span>]
<span id="L370" class="LineNr">370 </span><span class="muRecipe">def</span> test1 [
<span id="L371" class="LineNr">371 </span>  <span class="Identifier">return</span>-<span class="Normal">if</span> <span class="Constant">0</span><span class="Delimiter">,</span> <span class="Constant">34</span>
<span id="L372" class="LineNr">372 </span>  <span class="Identifier">return</span> <span class="Constant">35</span>
<span id="L373" class="LineNr">373 </span>]
<span id="L374" class="LineNr">374 </span><span class="traceContains">+mem: storing 35 in location 1</span>
<span id="L375" class="LineNr">375 </span>
<span id="L376" class="LineNr">376 </span><span class="Delimiter">:(scenario return_if_2)</span>
<span id="L377" class="LineNr">377 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L378" class="LineNr">378 </span>  <span class="Constant">1</span>:num<span class="Special"> &lt;- </span>test1
<span id="L379" class="LineNr">379 </span>]
<span id="L380" class="LineNr">380 </span><span class="muRecipe">def</span> test1 [
<span id="L381" class="LineNr">381 </span>  <span class="Identifier">return</span>-<span class="Normal">if</span> <span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">34</span>
<span id="L382" class="LineNr">382 </span>  <span class="Identifier">return</span> <span class="Constant">35</span>
<span id="L383" class="LineNr">383 </span>]
<span id="L384" class="LineNr">384 </span><span class="traceContains">+mem: storing 34 in location 1</span>
<span id="L385" class="LineNr">385 </span>
<span id="L386" class="LineNr">386 </span><span class="Delimiter">:(before &quot;End Rewrite Instruction(curr, <a href='010vm.cc.html#L19'>recipe</a> result)&quot;)</span>
<span id="L387" class="LineNr">387 </span><span class="Comment">// rewrite `return-if a, b, c, ...` to</span>
<span id="L388" class="LineNr">388 </span><span class="Comment">//   ```</span>
<span id="L389" class="LineNr">389 </span><span class="Comment">//   {</span>
<span id="L390" class="LineNr">390 </span><span class="Comment">//     break-unless a</span>
<span id="L391" class="LineNr">391 </span><span class="Comment">//     return b, c, ...</span>
<span id="L392" class="LineNr">392 </span><span class="Comment">//   }</span>
<span id="L393" class="LineNr">393 </span><span class="Comment">//   ```</span>
<span id="L394" class="LineNr">394 </span><span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">.</span>name == <span class="Constant">&quot;return-if&quot;</span> || curr<span class="Delimiter">.</span>name == <span class="Constant">&quot;reply-if&quot;</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L395" class="LineNr">395 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span>
<span id="L396" class="LineNr">396 </span>  <span class="Conceal">¦</span> <a href='040brace.cc.html#L421'>emit_return_block</a><span class="Delimiter">(</span>result<span class="Delimiter">,</span> <span class="Constant">&quot;break-unless&quot;</span><span class="Delimiter">,</span> curr<span class="Delimiter">);</span>
<span id="L397" class="LineNr">397 </span>  <span class="Conceal">¦</span> curr<span class="Delimiter">.</span><a href='050scenario.cc.html#L60'>clear</a><span class="Delimiter">();</span>
<span id="L398" class="LineNr">398 </span>  <span class="Delimiter">}</span>
<span id="L399" class="LineNr">399 </span>  <span class="Normal">else</span> <span class="Delimiter">{</span>
<span id="L400" class="LineNr">400 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;'&quot;</span> &lt;&lt; curr<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot;' never yields any products</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="L401" class="LineNr">401 </span>  <span class="Delimiter">}</span>
<span id="L402" class="LineNr">402 </span><span class="Delimiter">}</span>
<span id="L403" class="LineNr">403 </span><span class="Comment">// rewrite `return-unless a, b, c, ...` to</span>
<span id="L404" class="LineNr">404 </span><span class="Comment">//   ```</span>
<span id="L405" class="LineNr">405 </span><span class="Comment">//   {</span>
<span id="L406" class="LineNr">406 </span><span class="Comment">//     break-if a</span>
<span id="L407" class="LineNr">407 </span><span class="Comment">//     return b, c, ...</span>
<span id="L408" class="LineNr">408 </span><span class="Comment">//   }</span>
<span id="L409" class="LineNr">409 </span><span class="Comment">//   ```</span>
<span id="L410" class="LineNr">410 </span><span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">.</span>name == <span class="Constant">&quot;return-unless&quot;</span> || curr<span class="Delimiter">.</span>name == <span class="Constant">&quot;reply-unless&quot;</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L411" class="LineNr">411 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Delimiter">{</span>
<span id="L412" class="LineNr">412 </span>  <span class="Conceal">¦</span> <a href='040brace.cc.html#L421'>emit_return_block</a><span class="Delimiter">(</span>result<span class="Delimiter">,</span> <span class="Constant">&quot;break-if&quot;</span><span class="Delimiter">,</span> curr<span class="Delimiter">);</span>
<span id="L413" class="LineNr">413 </span>  <span class="Conceal">¦</span> curr<span class="Delimiter">.</span><a href='050scenario.cc.html#L60'>clear</a><span class="Delimiter">();</span>
<span id="L414" class="LineNr">414 </span>  <span class="Delimiter">}</span>
<span id="L415" class="LineNr">415 </span>  <span class="Normal">else</span> <span class="Delimiter">{</span>
<span id="L416" class="LineNr">416 </span>  <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> &lt;&lt; <span class="Constant">&quot;'&quot;</span> &lt;&lt; curr<span class="Delimiter">.</span>name &lt;&lt; <span class="Constant">&quot;' never yields any products</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="L417" class="LineNr">417 </span>  <span class="Delimiter">}</span>
<span id="L418" class="LineNr">418 </span><span class="Delimiter">}</span>
<span id="L419" class="LineNr">419 </span>
<span id="L420" class="LineNr">420 </span><span class="Delimiter">:(code)</span>
<span id="L421" class="LineNr">421 </span><span class="Normal">void</span> <a href='040brace.cc.html#L421'>emit_return_block</a><span class="Delimiter">(</span>recipe&amp; out<span class="Delimiter">,</span> <span class="Normal">const</span> string&amp; break_command<span class="Delimiter">,</span> <span class="Normal">const</span> instruction&amp; inst<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L422" class="LineNr">422 </span>  <span class="Normal">const</span> vector&lt;reagent&gt;&amp; ingredients = inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">;</span>
<span id="L423" class="LineNr">423 </span>  reagent<span class="Comment">/*</span><span class="Comment">copy</span><span class="Comment">*/</span> condition = ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
<span id="L424" class="LineNr">424 </span>  vector&lt;reagent&gt; return_ingredients<span class="Delimiter">;</span>
<span id="L425" class="LineNr">425 </span>  copy<span class="Delimiter">(</span>++ingredients<span class="Delimiter">.</span>begin<span class="Delimiter">(),</span> ingredients<span class="Delimiter">.</span><a href='003trace.cc.html#L197'>end</a><span class="Delimiter">(),</span> inserter<span class="Delimiter">(</span>return_ingredients<span class="Delimiter">,</span> return_ingredients<span class="Delimiter">.</span><a href='003trace.cc.html#L197'>end</a><span class="Delimiter">()));</span>
<span id="L426" class="LineNr">426 </span>
<span id="L427" class="LineNr">427 </span>  <span class="Comment">// {</span>
<span id="L428" class="LineNr">428 </span>  <a href='010vm.cc.html#L32'>instruction</a> open_label<span class="Delimiter">;</span>  open_label<span class="Delimiter">.</span>is_label=<span class="Constant">true</span><span class="Delimiter">;</span>  open_label<span class="Delimiter">.</span>label = <span class="Constant">&quot;{&quot;</span><span class="Delimiter">;</span>
<span id="L429" class="LineNr">429 </span>  out<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>open_label<span class="Delimiter">);</span>
<span id="L430" class="LineNr">430 </span>
<span id="L431" class="LineNr">431 </span>  <span class="Comment">// &lt;break command&gt; &lt;condition&gt;</span>
<span id="L432" class="LineNr">432 </span>  <a href='010vm.cc.html#L32'>instruction</a> break_inst<span class="Delimiter">;</span>
<span id="L433" class="LineNr">433 </span>  break_inst<span class="Delimiter">.</span>operation = get<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> break_command<span class="Delimiter">);</span>
<span id="L434" class="LineNr">434 </span>  break_inst<span class="Delimiter">.</span>name = break_command<span class="Delimiter">;</span>
<span id="L435" class="LineNr">435 </span>  break_inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>condition<span class="Delimiter">);</span>
<span id="L436" class="LineNr">436 </span>  out<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>break_inst<span class="Delimiter">);</span>
<span id="L437" class="LineNr">437 </span>
<span id="L438" class="LineNr">438 </span>  <span class="Comment">// return &lt;return ingredients&gt;</span>
<span id="L439" class="LineNr">439 </span>  <a href='010vm.cc.html#L32'>instruction</a> return_inst<span class="Delimiter">;</span>
<span id="L440" class="LineNr">440 </span>  return_inst<span class="Delimiter">.</span>operation = get<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;return&quot;</span><span class="Delimiter">);</span>
<span id="L441" class="LineNr">441 </span>  return_inst<span class="Delimiter">.</span>name = <span class="Constant">&quot;return&quot;</span><span class="Delimiter">;</span>
<span id="L442" class="LineNr">442 </span>  return_inst<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>swap<span class="Delimiter">(</span>return_ingredients<span class="Delimiter">);</span>
<span id="L443" class="LineNr">443 </span>  return_inst<span class="Delimiter">.</span>original_string = inst<span class="Delimiter">.</span>original_string<span class="Delimiter">;</span>
<span id="L444" class="LineNr">444 </span>  out<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>return_inst<span class="Delimiter">);</span>
<span id="L445" class="LineNr">445 </span>
<span id="L446" class="LineNr">446 </span>  <span class="Comment">// }</span>
<span id="L447" class="LineNr">447 </span>  <a href='010vm.cc.html#L32'>instruction</a> close_label<span class="Delimiter">;</span>  close_label<span class="Delimiter">.</span>is_label=<span class="Constant">true</span><span class="Delimiter">;</span>  close_label<span class="Delimiter">.</span>label = <span class="Constant">&quot;}&quot;</span><span class="Delimiter">;</span>
<span id="L448" class="LineNr">448 </span>  out<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>close_label<span class="Delimiter">);</span>
<span id="L449" class="LineNr">449 </span><span class="Delimiter">}</span>
<span id="L450" class="LineNr">450 </span>
<span id="L451" class="LineNr">451 </span><span class="Comment">//: Make sure these pseudo recipes get consistent numbers in all tests, even</span>
<span id="L452" class="LineNr">452 </span><span class="Comment">//: though they aren't implemented. Allows greater flexibility in ordering</span>
<span id="L453" class="LineNr">453 </span><span class="Comment">//: transforms.</span>
<span id="L454" class="LineNr">454 </span>
<span id="L455" class="LineNr">455 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
<span id="L456" class="LineNr">456 </span>BREAK<span class="Delimiter">,</span>
<span id="L457" class="LineNr">457 </span>BREAK_IF<span class="Delimiter">,</span>
<span id="L458" class="LineNr">458 </span>BREAK_UNLESS<span class="Delimiter">,</span>
<span id="L459" class="LineNr">459 </span>LOOP<span class="Delimiter">,</span>
<span id="L460" class="LineNr">460 </span>LOOP_IF<span class="Delimiter">,</span>
<span id="L461" class="LineNr">461 </span>LOOP_UNLESS<span class="Delimiter">,</span>
<span id="L462" class="LineNr">462 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
<span id="L463" class="LineNr">463 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;break&quot;</span><span class="Delimiter">,</span> BREAK<span class="Delimiter">);</span>
<span id="L464" class="LineNr">464 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;break-if&quot;</span><span class="Delimiter">,</span> BREAK_IF<span class="Delimiter">);</span>
<span id="L465" class="LineNr">465 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;break-unless&quot;</span><span class="Delimiter">,</span> BREAK_UNLESS<span class="Delimiter">);</span>
<span id="L466" class="LineNr">466 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;loop&quot;</span><span class="Delimiter">,</span> LOOP<span class="Delimiter">);</span>
<span id="L467" class="LineNr">467 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;loop-if&quot;</span><span class="Delimiter">,</span> LOOP_IF<span class="Delimiter">);</span>
<span id="L468" class="LineNr">468 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;loop-unless&quot;</span><span class="Delimiter">,</span> LOOP_UNLESS<span class="Delimiter">);</span>
<span id="L469" class="LineNr">469 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
<span id="L470" class="LineNr">470 </span><span class="Normal">case</span> BREAK: <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L471" class="LineNr">471 </span><span class="Normal">case</span> BREAK_IF: <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L472" class="LineNr">472 </span><span class="Normal">case</span> BREAK_UNLESS: <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L473" class="LineNr">473 </span><span class="Normal">case</span> LOOP: <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L474" class="LineNr">474 </span><span class="Normal">case</span> LOOP_IF: <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L475" class="LineNr">475 </span><span class="Normal">case</span> LOOP_UNLESS: <span class="Identifier">break</span><span class="Delimiter">;</span>
</pre>
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