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* inline luasocketKartik K. Agaram2021-11-201-0/+154
generated by cgit-pink 1.4.1-2-gfad0 (git 2.36.2.497.gbbea4dcf42) at 2024-11-18 09:28:09 +0000
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<pre id='vimCodeElement'>
<span id="L1" class="LineNr">  1 </span><span class="Comment">// To recursively copy containers and any addresses they contain, use</span>
<span id="L2" class="LineNr">  2 </span><span class="Comment">// 'deep-copy'.</span>
<span id="L3" class="LineNr">  3 </span><span class="Comment">//</span>
<span id="L4" class="LineNr">  4 </span><span class="Comment">// Invariant: After a deep-copy its ingredient and result will point to no</span>
<span id="L5" class="LineNr">  5 </span><span class="Comment">// common addresses.</span>
<span id="L6" class="LineNr">  6 </span><span class="Comment">//</span>
<span id="L7" class="LineNr">  7 </span><span class="Comment">// We do handle cycles in the ingredient, however. All cycles are translated</span>
<span id="L8" class="LineNr">  8 </span><span class="Comment">// to new cycles in the product.</span>
<span id="L9" class="LineNr">  9 </span>
<span id="L10" class="LineNr"> 10 </span><span class="Delimiter">:(scenario deep_copy_number)</span>
<span id="L11" class="LineNr"> 11 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L12" class="LineNr"> 12 </span>  local-scope
<span id="L13" class="LineNr"> 13 </span>  <span class="Normal">x</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">34</span>
<span id="L14" class="LineNr"> 14 </span>  <span class="Normal">y</span>:num<span class="Special"> &lt;- </span>deep-copy x
<span id="L15" class="LineNr"> 15 </span>  <span class="Constant">10</span>:<span class="Normal">bool</span>/<span class="Special">raw &lt;- </span>equal x<span class="Delimiter">,</span> y
<span id="L16" class="LineNr"> 16 </span>]
<span id="L17" class="LineNr"> 17 </span><span class="Comment"># non-address primitives are identical</span>
<span id="L18" class="LineNr"> 18 </span><span class="traceContains">+mem: storing 1 in location 10</span>
<span id="L19" class="LineNr"> 19 </span>
<span id="L20" class="LineNr"> 20 </span><span class="Delimiter">:(scenario deep_copy_null_pointer)</span>
<span id="L21" class="LineNr"> 21 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L22" class="LineNr"> 22 </span>  local-scope
<span id="L23" class="LineNr"> 23 </span>  <span class="Normal">x</span>:&amp;:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L24" class="LineNr"> 24 </span>  <span class="Normal">y</span>:&amp;:num<span class="Special"> &lt;- </span>deep-copy x
<span id="L25" class="LineNr"> 25 </span>  <span class="Constant">10</span>:<span class="Normal">bool</span>/<span class="Special">raw &lt;- </span>equal x<span class="Delimiter">,</span> y
<span id="L26" class="LineNr"> 26 </span>]
<span id="L27" class="LineNr"> 27 </span><span class="Comment"># null addresses are identical</span>
<span id="L28" class="LineNr"> 28 </span><span class="traceContains">+mem: storing 1 in location 10</span>
<span id="L29" class="LineNr"> 29 </span>
<span id="L30" class="LineNr"> 30 </span><span class="Delimiter">:(scenario deep_copy_container_without_address)</span>
<span id="L31" class="LineNr"> 31 </span><span class="muData">container</span> foo [
<span id="L32" class="LineNr"> 32 </span>  <span class="Normal">x</span>:num
<span id="L33" class="LineNr"> 33 </span>  <span class="Normal">y</span>:num
<span id="L34" class="LineNr"> 34 </span>]
<span id="L35" class="LineNr"> 35 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L36" class="LineNr"> 36 </span>  local-scope
<span id="L37" class="LineNr"> 37 </span>  <span class="Normal">a</span>:foo<span class="Special"> &lt;- </span>merge <span class="Constant">34</span><span class="Delimiter">,</span> <span class="Constant">35</span>
<span id="L38" class="LineNr"> 38 </span>  <span class="Normal">b</span>:foo<span class="Special"> &lt;- </span>deep-copy a
<span id="L39" class="LineNr"> 39 </span>  <span class="Constant">10</span>:<span class="Normal">bool</span>/<span class="Special">raw &lt;- </span>equal a<span class="Delimiter">,</span> b
<span id="L40" class="LineNr"> 40 </span>]
<span id="L41" class="LineNr"> 41 </span><span class="Comment"># containers are identical as long as they don't contain addresses</span>
<span id="L42" class="LineNr"> 42 </span><span class="traceContains">+mem: storing 1 in location 10</span>
<span id="L43" class="LineNr"> 43 </span>
<span id="L44" class="LineNr"> 44 </span><span class="Delimiter">:(scenario deep_copy_address)</span>
<span id="L45" class="LineNr"> 45 </span><span class="Special">% Memory_allocated_until = 200;</span>
<span id="L46" class="LineNr"> 46 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L47" class="LineNr"> 47 </span>  <span class="Comment"># avoid all memory allocations except the implicit ones inside deep-copy, so</span>
<span id="L48" class="LineNr"> 48 </span>  <span class="Comment"># that the result is deterministic</span>
<span id="L49" class="LineNr"> 49 </span>  <span class="Constant">1</span>:&amp;:num<span class="Special"> &lt;- </span>copy <span class="Constant">100</span>/unsafe  <span class="Comment"># pretend allocation</span>
<span id="L50" class="LineNr"> 50 </span>  *<span class="Constant">1</span>:&amp;:num<span class="Special"> &lt;- </span>copy <span class="Constant">34</span>
<span id="L51" class="LineNr"> 51 </span>  <span class="Constant">2</span>:&amp;:num<span class="Special"> &lt;- </span>deep-copy <span class="Constant">1</span>:&amp;:num
<span id="L52" class="LineNr"> 52 </span>  <span class="Constant">10</span>:<span class="Normal">bool</span><span class="Special"> &lt;- </span>equal <span class="Constant">1</span>:&amp;:num<span class="Delimiter">,</span> <span class="Constant">2</span>:&amp;:num
<span id="L53" class="LineNr"> 53 </span>  <span class="Constant">11</span>:<span class="Normal">bool</span><span class="Special"> &lt;- </span>equal *<span class="Constant">1</span>:&amp;:num<span class="Delimiter">,</span> *<span class="Constant">2</span>:&amp;:num
<span id="L54" class="LineNr"> 54 </span>  <span class="Constant">2</span>:&amp;:num<span class="Special"> &lt;- </span>copy <span class="Constant">0</span>
<span id="L55" class="LineNr"> 55 </span>]
<span id="L56" class="LineNr"> 56 </span><span class="Comment"># the result of deep-copy is a new address</span>
<span id="L57" class="LineNr"> 57 </span><span class="traceContains">+mem: storing 0 in location 10</span>
<span id="L58" class="LineNr"> 58 </span><span class="Comment"># however, the contents are identical</span>
<span id="L59" class="LineNr"> 59 </span><span class="traceContains">+mem: storing 1 in location 11</span>
<span id="L60" class="LineNr"> 60 </span>
<span id="L61" class="LineNr"> 61 </span><span class="Delimiter">:(scenario deep_copy_address_to_container)</span>
<span id="L62" class="LineNr"> 62 </span><span class="Special">% Memory_allocated_until = 200;</span>
<span id="L63" class="LineNr"> 63 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L64" class="LineNr"> 64 </span>  <span class="Comment"># avoid all memory allocations except the implicit ones inside deep-copy, so</span>
<span id="L65" class="LineNr"> 65 </span>  <span class="Comment"># that the result is deterministic</span>
<span id="L66" class="LineNr"> 66 </span>  <span class="Constant">1</span>:&amp;:point<span class="Special"> &lt;- </span>copy <span class="Constant">100</span>/unsafe  <span class="Comment"># pretend allocation</span>
<span id="L67" class="LineNr"> 67 </span>  *<span class="Constant">1</span>:&amp;:point<span class="Special"> &lt;- </span>merge <span class="Constant">34</span><span class="Delimiter">,</span> <span class="Constant">35</span>
<span id="L68" class="LineNr"> 68 </span>  <span class="Constant">2</span>:&amp;:point<span class="Special"> &lt;- </span>deep-copy <span class="Constant">1</span>:&amp;:point
<span id="L69" class="LineNr"> 69 </span>  <span class="Constant">10</span>:<span class="Normal">bool</span><span class="Special"> &lt;- </span>equal <span class="Constant">1</span>:&amp;:point<span class="Delimiter">,</span> <span class="Constant">2</span>:&amp;:point
<span id="L70" class="LineNr"> 70 </span>  <span class="Constant">11</span>:<span class="Normal">bool</span><span class="Special"> &lt;- </span>equal *<span class="Constant">1</span>:&amp;:point<span class="Delimiter">,</span> *<span class="Constant">2</span>:&amp;:point
<span id="L71" class="LineNr"> 71 </span>]
<span id="L72" class="LineNr"> 72 </span><span class="Comment"># the result of deep-copy is a new address</span>
<span id="L73" class="LineNr"> 73 </span><span class="traceContains">+mem: storing 0 in location 10</span>
<span id="L74" class="LineNr"> 74 </span><span class="Comment"># however, the contents are identical</span>
<span id="L75" class="LineNr"> 75 </span><span class="traceContains">+mem: storing 1 in location 11</span>
<span id="L76" class="LineNr"> 76 </span>
<span id="L77" class="LineNr"> 77 </span><span class="Delimiter">:(scenario deep_copy_address_to_address)</span>
<span id="L78" class="LineNr"> 78 </span><span class="Special">% Memory_allocated_until = 200;</span>
<span id="L79" class="LineNr"> 79 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L80" class="LineNr"> 80 </span>  <span class="Comment"># avoid all memory allocations except the implicit ones inside deep-copy, so</span>
<span id="L81" class="LineNr"> 81 </span>  <span class="Comment"># that the result is deterministic</span>
<span id="L82" class="LineNr"> 82 </span>  <span class="Constant">1</span>:&amp;:&amp;:num<span class="Special"> &lt;- </span>copy <span class="Constant">100</span>/unsafe  <span class="Comment"># pretend allocation</span>
<span id="L83" class="LineNr"> 83 </span>  *<span class="Constant">1</span>:&amp;:&amp;:num<span class="Special"> &lt;- </span>copy <span class="Constant">150</span>/unsafe
<span id="L84" class="LineNr"> 84 </span>  **<span class="Constant">1</span>:&amp;:&amp;:num<span class="Special"> &lt;- </span>copy <span class="Constant">34</span>
<span id="L85" class="LineNr"> 85 </span>  <span class="Constant">2</span>:&amp;:&amp;:num<span class="Special"> &lt;- </span>deep-copy <span class="Constant">1</span>:&amp;:&amp;:num
<span id="L86" class="LineNr"> 86 </span>  <span class="Constant">10</span>:<span class="Normal">bool</span><span class="Special"> &lt;- </span>equal <span class="Constant">1</span>:&amp;:&amp;:num<span class="Delimiter">,</span> <span class="Constant">2</span>:&amp;:&amp;:num
<span id="L87" class="LineNr"> 87 </span>  <span class="Constant">11</span>:<span class="Normal">bool</span><span class="Special"> &lt;- </span>equal *<span class="Constant">1</span>:&amp;:&amp;:num<span class="Delimiter">,</span> *<span class="Constant">2</span>:&amp;:&amp;:num
<span id="L88" class="LineNr"> 88 </span>  <span class="Constant">12</span>:<span class="Normal">bool</span><span class="Special"> &lt;- </span>equal **<span class="Constant">1</span>:&amp;:&amp;:num<span class="Delimiter">,</span> **<span class="Constant">2</span>:&amp;:&amp;:num
<span id="L89" class="LineNr"> 89 </span>]
<span id="L90" class="LineNr"> 90 </span><span class="Comment"># the result of deep-copy is a new address</span>
<span id="L91" class="LineNr"> 91 </span><span class="traceContains">+mem: storing 0 in location 10</span>
<span id="L92" class="LineNr"> 92 </span><span class="Comment"># any addresses in it or pointed to it are also new</span>
<span id="L93" class="LineNr"> 93 </span><span class="traceContains">+mem: storing 0 in location 11</span>
<span id="L94" class="LineNr"> 94 </span><span class="Comment"># however, the non-address contents are identical</span>
<span id="L95" class="LineNr"> 95 </span><span class="traceContains">+mem: storing 1 in location 12</span>
<span id="L96" class="LineNr"> 96 </span>
<span id="L97" class="LineNr"> 97 </span><span class="Delimiter">:(scenario deep_copy_array)</span>
<span id="L98" class="LineNr"> 98 </span><span class="Special">% Memory_allocated_until = 200;</span>
<span id="L99" class="LineNr"> 99 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L100" class="LineNr">100 </span>  <span class="Comment"># avoid all memory allocations except the implicit ones inside deep-copy, so</span>
<span id="L101" class="LineNr">101 </span>  <span class="Comment"># that the result is deterministic</span>
<span id="L102" class="LineNr">102 </span>  <span class="Constant">100</span>:num<span class="Special"> &lt;- </span>copy <span class="Constant">3</span>  <span class="Comment"># pretend array length</span>
<span id="L103" class="LineNr">103 </span>  <span class="Constant">1</span>:&amp;:@:num<span class="Special"> &lt;- </span>copy <span class="Constant">100</span>/unsafe  <span class="Comment"># pretend allocation</span>
<span id="L104" class="LineNr">104 </span>  put-index *<span class="Constant">1</span>:&amp;:@:num<span class="Delimiter">,</span> <span class="Constant">0</span><span class="Delimiter">,</span> <span class="Constant">34</span>
<span id="L105" class="LineNr">105 </span>  put-index *<span class="Constant">1</span>:&amp;:@:num<span class="Delimiter">,</span> <span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">35</span>
<span id="L106" class="LineNr">106 </span>  put-index *<span class="Constant">1</span>:&amp;:@:num<span class="Delimiter">,</span> <span class="Constant">2</span><span class="Delimiter">,</span> <span class="Constant">36</span>
<span id="L107" class="LineNr">107 </span>  stash [old:]<span class="Delimiter">,</span> *<span class="Constant">1</span>:&amp;:@:num
<span id="L108" class="LineNr">108 </span>  <span class="Constant">2</span>:&amp;:@:num<span class="Special"> &lt;- </span>deep-copy <span class="Constant">1</span>:&amp;:@:num
<span id="L109" class="LineNr">109 </span>  stash <span class="Constant">2</span>:&amp;:@:num
<span id="L110" class="LineNr">110 </span>  stash [<span class="Normal">new</span>:]<span class="Delimiter">,</span> *<span class="Constant">2</span>:&amp;:@:num
<span id="L111" class="LineNr">111 </span>  <span class="Constant">10</span>:<span class="Normal">bool</span><span class="Special"> &lt;- </span>equal <span class="Constant">1</span>:&amp;:@:num<span class="Delimiter">,</span> <span class="Constant">2</span>:&amp;:@:num
<span id="L112" class="LineNr">112 </span>  <span class="Constant">11</span>:<span class="Normal">bool</span><span class="Special"> &lt;- </span>equal *<span class="Constant">1</span>:&amp;:@:num<span class="Delimiter">,</span> *<span class="Constant">2</span>:&amp;:@:num
<span id="L113" class="LineNr">113 </span>]
<span id="L114" class="LineNr">114 </span><span class="traceContains">+app: old: 3 34 35 36</span>
<span id="L115" class="LineNr">115 </span><span class="traceContains">+app: new: 3 34 35 36</span>
<span id="L116" class="LineNr">116 </span><span class="Comment"># the result of deep-copy is a new address</span>
<span id="L117" class="LineNr">117 </span><span class="traceContains">+mem: storing 0 in location 10</span>
<span id="L118" class="LineNr">118 </span><span class="Comment"># however, the contents are identical</span>
<span id="L119" class="LineNr">119 </span><span class="traceContains">+mem: storing 1 in location 11</span>
<span id="L120" class="LineNr">120 </span>
<span id="L121" class="LineNr">121 </span><span class="Delimiter">:(scenario deep_copy_container_with_address)</span>
<span id="L122" class="LineNr">122 </span><span class="muData">container</span> foo [
<span id="L123" class="LineNr">123 </span>  <span class="Normal">x</span>:num
<span id="L124" class="LineNr">124 </span>  <span class="Normal">y</span>:&amp;:num
<span id="L125" class="LineNr">125 </span>]
<span id="L126" class="LineNr">126 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L127" class="LineNr">127 </span>  local-scope
<span id="L128" class="LineNr">128 </span>  <span class="Normal">y0</span>:&amp;:num<span class="Special"> &lt;- </span><span class="Normal">new</span> <span class="Constant">number:type</span>
<span id="L129" class="LineNr">129 </span>  *y0<span class="Special"> &lt;- </span>copy <span class="Constant">35</span>
<span id="L130" class="LineNr">130 </span>  <span class="Normal">a</span>:foo<span class="Special"> &lt;- </span>merge <span class="Constant">34</span><span class="Delimiter">,</span> y0
<span id="L131" class="LineNr">131 </span>  <span class="Normal">b</span>:foo<span class="Special"> &lt;- </span>deep-copy a
<span id="L132" class="LineNr">132 </span>  <span class="Constant">10</span>:<span class="Normal">bool</span>/<span class="Special">raw &lt;- </span>equal a<span class="Delimiter">,</span> b
<span id="L133" class="LineNr">133 </span>  <span class="Normal">y1</span>:&amp;:num<span class="Special"> &lt;- </span>get b<span class="Delimiter">,</span> <span class="Constant">y:offset</span>
<span id="L134" class="LineNr">134 </span>  <span class="Constant">11</span>:<span class="Normal">bool</span>/<span class="Special">raw &lt;- </span>equal y0<span class="Delimiter">,</span> y1
<span id="L135" class="LineNr">135 </span>  <span class="Constant">12</span>:num/<span class="Special">raw &lt;- </span>copy *y1
<span id="L136" class="LineNr">136 </span>]
<span id="L137" class="LineNr">137 </span><span class="Comment"># containers containing addresses are not identical to their deep copies</span>
<span id="L138" class="LineNr">138 </span><span class="traceContains">+mem: storing 0 in location 10</span>
<span id="L139" class="LineNr">139 </span><span class="Comment"># the addresses they contain are not identical either</span>
<span id="L140" class="LineNr">140 </span><span class="traceContains">+mem: storing 0 in location 11</span>
<span id="L141" class="LineNr">141 </span><span class="traceContains">+mem: storing 35 in location 12</span>
<span id="L142" class="LineNr">142 </span>
<span id="L143" class="LineNr">143 </span><span class="Delimiter">:(scenario deep_copy_exclusive_container_with_address)</span>
<span id="L144" class="LineNr">144 </span><span class="muData">exclusive-container</span> foo [
<span id="L145" class="LineNr">145 </span>  <span class="Normal">x</span>:num
<span id="L146" class="LineNr">146 </span>  <span class="Normal">y</span>:&amp;:num
<span id="L147" class="LineNr">147 </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>  local-scope
<span id="L150" class="LineNr">150 </span>  <span class="Normal">y0</span>:&amp;:num<span class="Special"> &lt;- </span><span class="Normal">new</span> <span class="Constant">number:type</span>
<span id="L151" class="LineNr">151 </span>  *y0<span class="Special"> &lt;- </span>copy <span class="Constant">34</span>
<span id="L152" class="LineNr">152 </span>  <span class="Normal">a</span>:foo<span class="Special"> &lt;- </span>merge <span class="Constant">1</span>/y<span class="Delimiter">,</span> y0
<span id="L153" class="LineNr">153 </span>  <span class="Normal">b</span>:foo<span class="Special"> &lt;- </span>deep-copy a
<span id="L154" class="LineNr">154 </span>  <span class="Constant">10</span>:<span class="Normal">bool</span>/<span class="Special">raw &lt;- </span>equal a<span class="Delimiter">,</span> b
<span id="L155" class="LineNr">155 </span>  <span class="Normal">y1</span>:&amp;:num<span class="Delimiter">,</span> z:<span class="Normal">bool</span><span class="Special"> &lt;- </span>maybe-convert b<span class="Delimiter">,</span> <span class="Constant">y:variant</span>
<span id="L156" class="LineNr">156 </span>  <span class="Constant">11</span>:<span class="Normal">bool</span>/<span class="Special">raw &lt;- </span>equal y0<span class="Delimiter">,</span> y1
<span id="L157" class="LineNr">157 </span>  <span class="Constant">12</span>:num/<span class="Special">raw &lt;- </span>copy *y1
<span id="L158" class="LineNr">158 </span>]
<span id="L159" class="LineNr">159 </span><span class="Comment"># exclusive containers containing addresses are not identical to their deep copies</span>
<span id="L160" class="LineNr">160 </span><span class="traceContains">+mem: storing 0 in location 10</span>
<span id="L161" class="LineNr">161 </span><span class="Comment"># the addresses they contain are not identical either</span>
<span id="L162" class="LineNr">162 </span><span class="traceContains">+mem: storing 0 in location 11</span>
<span id="L163" class="LineNr">163 </span><span class="traceContains">+mem: storing 34 in location 12</span>
<span id="L164" class="LineNr">164 </span>
<span id="L165" class="LineNr">165 </span><span class="Delimiter">:(scenario deep_copy_exclusive_container_with_container_with_address)</span>
<span id="L166" class="LineNr">166 </span><span class="muData">exclusive-container</span> foo [
<span id="L167" class="LineNr">167 </span>  <span class="Normal">x</span>:num
<span id="L168" class="LineNr">168 </span>  <span class="Normal">y</span>:bar  <span class="Comment"># inline</span>
<span id="L169" class="LineNr">169 </span>]
<span id="L170" class="LineNr">170 </span><span class="muData">container</span> bar [
<span id="L171" class="LineNr">171 </span>  <span class="Normal">x</span>:&amp;:num
<span id="L172" class="LineNr">172 </span>]
<span id="L173" class="LineNr">173 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L174" class="LineNr">174 </span>  local-scope
<span id="L175" class="LineNr">175 </span>  <span class="Normal">y0</span>:&amp;:num<span class="Special"> &lt;- </span><span class="Normal">new</span> <span class="Constant">number:type</span>
<span id="L176" class="LineNr">176 </span>  *y0<span class="Special"> &lt;- </span>copy <span class="Constant">34</span>
<span id="L177" class="LineNr">177 </span>  <span class="Normal">a</span>:bar<span class="Special"> &lt;- </span>merge y0
<span id="L178" class="LineNr">178 </span>  <span class="Normal">b</span>:foo<span class="Special"> &lt;- </span>merge <span class="Constant">1</span>/y<span class="Delimiter">,</span> a
<span id="L179" class="LineNr">179 </span>  <span class="Normal">c</span>:foo<span class="Special"> &lt;- </span>deep-copy b
<span id="L180" class="LineNr">180 </span>  <span class="Constant">10</span>:<span class="Normal">bool</span>/<span class="Special">raw &lt;- </span>equal b<span class="Delimiter">,</span> c
<span id="L181" class="LineNr">181 </span>  <span class="Normal">d</span>:bar<span class="Delimiter">,</span> z:<span class="Normal">bool</span><span class="Special"> &lt;- </span>maybe-convert c<span class="Delimiter">,</span> <span class="Constant">y:variant</span>
<span id="L182" class="LineNr">182 </span>  <span class="Normal">y1</span>:&amp;:num<span class="Special"> &lt;- </span>get d<span class="Delimiter">,</span> <span class="Constant">x:offset</span>
<span id="L183" class="LineNr">183 </span>  <span class="Constant">11</span>:<span class="Normal">bool</span>/<span class="Special">raw &lt;- </span>equal y0<span class="Delimiter">,</span> y1
<span id="L184" class="LineNr">184 </span>  <span class="Constant">12</span>:num/<span class="Special">raw &lt;- </span>copy *y1
<span id="L185" class="LineNr">185 </span>]
<span id="L186" class="LineNr">186 </span><span class="Comment"># exclusive containers containing addresses are not identical to their deep copies</span>
<span id="L187" class="LineNr">187 </span><span class="traceContains">+mem: storing 0 in location 10</span>
<span id="L188" class="LineNr">188 </span><span class="Comment"># sub-containers containing addresses are not identical either</span>
<span id="L189" class="LineNr">189 </span><span class="traceContains">+mem: storing 0 in location 11</span>
<span id="L190" class="LineNr">190 </span><span class="traceContains">+mem: storing 34 in location 12</span>
<span id="L191" class="LineNr">191 </span>
<span id="L192" class="LineNr">192 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Declarations&quot;)</span>
<span id="L193" class="LineNr">193 </span>DEEP_COPY<span class="Delimiter">,</span>
<span id="L194" class="LineNr">194 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Numbers&quot;)</span>
<span id="L195" class="LineNr">195 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">&quot;deep-copy&quot;</span><span class="Delimiter">,</span> DEEP_COPY<span class="Delimiter">);</span>
<span id="L196" class="LineNr">196 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Checks&quot;)</span>
<span id="L197" class="LineNr">197 </span><span class="Normal">case</span> DEEP_COPY: <span class="Delimiter">{</span>
<span id="L198" class="LineNr">198 </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> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L199" class="LineNr">199 </span>    <a href='003trace.cc.html#L174'>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;'deep-copy' takes exactly one ingredient rather than '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L200" class="LineNr">200 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L201" class="LineNr">201 </span>  <span class="Delimiter">}</span>
<span id="L202" class="LineNr">202 </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>products<span class="Delimiter">)</span> != <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L203" class="LineNr">203 </span>    <a href='003trace.cc.html#L174'>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;'deep-copy' takes exactly one ingredient rather than '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L204" class="LineNr">204 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L205" class="LineNr">205 </span>  <span class="Delimiter">}</span>
<span id="L206" class="LineNr">206 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!types_strictly_match<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> inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)))</span> <span class="Delimiter">{</span>
<span id="L207" class="LineNr">207 </span>    <a href='003trace.cc.html#L174'>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;'deep-copy' requires its ingredient and product to be the same type, but got '&quot;</span> &lt;&lt; to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;'</span><span class="cSpecial">\n</span><span class="Constant">&quot;</span> &lt;&lt; <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L208" class="LineNr">208 </span>    <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L209" class="LineNr">209 </span>  <span class="Delimiter">}</span>
<span id="L210" class="LineNr">210 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L211" class="LineNr">211 </span><span class="Delimiter">}</span>
<span id="L212" class="LineNr">212 </span><span class="Delimiter">:(before &quot;End Primitive Recipe Implementations&quot;)</span>
<span id="L213" class="LineNr">213 </span><span class="Normal">case</span> DEEP_COPY: <span class="Delimiter">{</span>
<span id="L214" class="LineNr">214 </span>  products<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>deep_copy<span class="Delimiter">(</span><a href='026call.cc.html#L89'>current_instruction</a><span class="Delimiter">().</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)));</span>
<span id="L215" class="LineNr">215 </span>  <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L216" class="LineNr">216 </span><span class="Delimiter">}</span>
<span id="L217" class="LineNr">217 </span>
<span id="L218" class="LineNr">218 </span><span class="Delimiter">:(code)</span>
<span id="L219" class="LineNr">219 </span>vector&lt;<span class="Normal">double</span>&gt; deep_copy<span class="Delimiter">(</span><span class="Normal">const</span> reagent&amp; in<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L220" class="LineNr">220 </span>  <span class="Comment">// allocate a tiny bit of temporary space for deep_copy()</span>
<span id="L221" class="LineNr">221 </span>  <a href='003trace.cc.html#L167'>trace</a><span class="Delimiter">(</span><span class="Constant">9991</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;deep-copy: allocating space for temporary&quot;</span> &lt;&lt; <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L222" class="LineNr">222 </span>  reagent tmp<span class="Delimiter">(</span><span class="Constant">&quot;tmp:<a href='043space.cc.html#L80'>address</a>:number&quot;</span><span class="Delimiter">);</span>
<span id="L223" class="LineNr">223 </span>  tmp<span class="Delimiter">.</span><a href='010vm.cc.html#L66'>set_value</a><span class="Delimiter">(</span>allocate<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">));</span>
<span id="L224" class="LineNr">224 </span>  map&lt;<span class="Normal">int</span><span class="Delimiter">,</span> <span class="Normal">int</span>&gt; addresses_copied<span class="Delimiter">;</span>
<span id="L225" class="LineNr">225 </span>  vector&lt;<span class="Normal">double</span>&gt; result = deep_copy<span class="Delimiter">(</span>in<span class="Delimiter">,</span> addresses_copied<span class="Delimiter">,</span> tmp<span class="Delimiter">);</span>
<span id="L226" class="LineNr">226 </span>  <span class="Comment">// reclaim Mu memory allocated for tmp</span>
<span id="L227" class="LineNr">227 </span>  <a href='003trace.cc.html#L167'>trace</a><span class="Delimiter">(</span><span class="Constant">9991</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;deep-copy: reclaiming temporary&quot;</span> &lt;&lt; <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L228" class="LineNr">228 </span>  <a href='037abandon.cc.html#L48'>abandon</a><span class="Delimiter">(</span>tmp<span class="Delimiter">.</span>value<span class="Delimiter">,</span> <a href='036refcount.cc.html#L1'>payload_size</a><span class="Delimiter">(</span>tmp<span class="Delimiter">));</span>
<span id="L229" class="LineNr">229 </span>  <span class="Comment">// reclaim host memory allocated for tmp.type when tmp goes out of scope</span>
<span id="L230" class="LineNr">230 </span>  <span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span id="L231" class="LineNr">231 </span><span class="Delimiter">}</span>
<span id="L232" class="LineNr">232 </span>
<span id="L233" class="LineNr">233 </span>vector&lt;<span class="Normal">double</span>&gt; deep_copy<span class="Delimiter">(</span>reagent<span class="Comment">/*</span><span class="Comment">copy</span><span class="Comment">*/</span> in<span class="Delimiter">,</span> map&lt;<span class="Normal">int</span><span class="Delimiter">,</span> <span class="Normal">int</span>&gt;&amp; addresses_copied<span class="Delimiter">,</span> <span class="Normal">const</span> reagent&amp; tmp<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L234" class="LineNr">234 </span>  canonize<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
<span id="L235" class="LineNr">235 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>is_mu_address<span class="Delimiter">(</span>in<span class="Delimiter">))</span> <span class="Delimiter">{</span>
<span id="L236" class="LineNr">236 </span>    <span class="Comment">// hack: skip primitive containers that do their own locking; they're designed to be shared between routines</span>
<span id="L237" class="LineNr">237 </span>    type_tree* payload = in<span class="Delimiter">.</span>type<span class="Delimiter">-&gt;</span>right<span class="Delimiter">;</span>
<span id="L238" class="LineNr">238 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span>payload<span class="Delimiter">-&gt;</span>left<span class="Delimiter">-&gt;</span>name == <span class="Constant">&quot;channel&quot;</span> || payload<span class="Delimiter">-&gt;</span>left<span class="Delimiter">-&gt;</span>name == <span class="Constant">&quot;screen&quot;</span> || payload<span class="Delimiter">-&gt;</span>left<span class="Delimiter">-&gt;</span>name == <span class="Constant">&quot;console&quot;</span> || payload<span class="Delimiter">-&gt;</span>left<span class="Delimiter">-&gt;</span>name == <span class="Constant">&quot;resources&quot;</span><span class="Delimiter">)</span>
<span id="L239" class="LineNr">239 </span>      <span class="Identifier">return</span> read_memory<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
<span id="L240" class="LineNr">240 </span>  <span class="Delimiter">}</span>
<span id="L241" class="LineNr">241 </span>  vector&lt;<span class="Normal">double</span>&gt; result<span class="Delimiter">;</span>
<span id="L242" class="LineNr">242 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>is_mu_address<span class="Delimiter">(</span>in<span class="Delimiter">))</span>
<span id="L243" class="LineNr">243 </span>    result<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='071deep_copy.cc.html#L250'>deep_copy_address</a><span class="Delimiter">(</span>in<span class="Delimiter">,</span> addresses_copied<span class="Delimiter">,</span> tmp<span class="Delimiter">));</span>
<span id="L244" class="LineNr">244 </span>  <span class="Normal">else</span>
<span id="L245" class="LineNr">245 </span>    deep_copy<span class="Delimiter">(</span>in<span class="Delimiter">,</span> addresses_copied<span class="Delimiter">,</span> tmp<span class="Delimiter">,</span> result<span class="Delimiter">);</span>
<span id="L246" class="LineNr">246 </span>  <span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span id="L247" class="LineNr">247 </span><span class="Delimiter">}</span>
<span id="L248" class="LineNr">248 </span>
<span id="L249" class="LineNr">249 </span><span class="Comment">// deep-copy an address and return a new address</span>
<span id="L250" class="LineNr">250 </span><span class="Normal">int</span> <a href='071deep_copy.cc.html#L250'>deep_copy_address</a><span class="Delimiter">(</span><span class="Normal">const</span> reagent&amp; canonized_in<span class="Delimiter">,</span> map&lt;<span class="Normal">int</span><span class="Delimiter">,</span> <span class="Normal">int</span>&gt;&amp; addresses_copied<span class="Delimiter">,</span> <span class="Normal">const</span> reagent&amp; tmp<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L251" class="LineNr">251 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span><a href='071deep_copy.cc.html#L316'>address_value</a><span class="Delimiter">(</span>canonized_in<span class="Delimiter">)</span> == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L252" class="LineNr">252 </span>  <span class="Normal">int</span> in_address = <a href='071deep_copy.cc.html#L310'>payload_address</a><span class="Delimiter">(</span>canonized_in<span class="Delimiter">);</span>
<span id="L253" class="LineNr">253 </span>  <a href='003trace.cc.html#L167'>trace</a><span class="Delimiter">(</span><span class="Constant">9991</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;deep-copy: copying <a href='043space.cc.html#L80'>address</a> &quot;</span> &lt;&lt; in_address &lt;&lt; <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L254" class="LineNr">254 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>contains_key<span class="Delimiter">(</span>addresses_copied<span class="Delimiter">,</span> in_address<span class="Delimiter">))</span> <span class="Delimiter">{</span>
<span id="L255" class="LineNr">255 </span>    <span class="Normal">int</span> out = get<span class="Delimiter">(</span>addresses_copied<span class="Delimiter">,</span> in_address<span class="Delimiter">);</span>
<span id="L256" class="LineNr">256 </span>    <a href='003trace.cc.html#L167'>trace</a><span class="Delimiter">(</span><span class="Constant">9991</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;deep-copy: copy already exists: &quot;</span> &lt;&lt; out &lt;&lt; <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L257" class="LineNr">257 </span>    <span class="Identifier">return</span> out<span class="Delimiter">;</span>
<span id="L258" class="LineNr">258 </span>  <span class="Delimiter">}</span>
<span id="L259" class="LineNr">259 </span>  <span class="Normal">int</span> out = allocate<span class="Delimiter">(</span><a href='036refcount.cc.html#L1'>payload_size</a><span class="Delimiter">(</span>canonized_in<span class="Delimiter">));</span>
<span id="L260" class="LineNr">260 </span>  <a href='003trace.cc.html#L167'>trace</a><span class="Delimiter">(</span><span class="Constant">9991</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;deep-copy: new <a href='043space.cc.html#L80'>address</a> is &quot;</span> &lt;&lt; out &lt;&lt; <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L261" class="LineNr">261 </span>  <a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>addresses_copied<span class="Delimiter">,</span> in_address<span class="Delimiter">,</span> out<span class="Delimiter">);</span>
<span id="L262" class="LineNr">262 </span>  reagent<span class="Comment">/*</span><span class="Comment">copy</span><span class="Comment">*/</span> payload = canonized_in<span class="Delimiter">;</span>
<span id="L263" class="LineNr">263 </span>  payload<span class="Delimiter">.</span>properties<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>pair&lt;string<span class="Delimiter">,</span> string_tree*&gt;<span class="Delimiter">(</span><span class="Constant">&quot;lookup&quot;</span><span class="Delimiter">,</span> <span class="Constant">NULL</span><span class="Delimiter">));</span>
<span id="L264" class="LineNr">264 </span>  <a href='003trace.cc.html#L167'>trace</a><span class="Delimiter">(</span><span class="Constant">9991</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;recursing on payload &quot;</span> &lt;&lt; payload<span class="Delimiter">.</span>value &lt;&lt; <span class="Constant">' '</span> &lt;&lt; <a href='028call_return.cc.html#L163'>to_string</a><span class="Delimiter">(</span>payload<span class="Delimiter">)</span> &lt;&lt; <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L265" class="LineNr">265 </span>  vector&lt;<span class="Normal">double</span>&gt; data = deep_copy<span class="Delimiter">(</span>payload<span class="Delimiter">,</span> addresses_copied<span class="Delimiter">,</span> tmp<span class="Delimiter">);</span>
<span id="L266" class="LineNr">266 </span>  <a href='003trace.cc.html#L167'>trace</a><span class="Delimiter">(</span><span class="Constant">9991</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;deep-copy: writing result &quot;</span> &lt;&lt; out &lt;&lt; <span class="Constant">&quot;: &quot;</span> &lt;&lt; <a href='028call_return.cc.html#L163'>to_string</a><span class="Delimiter">(</span>data<span class="Delimiter">)</span> &lt;&lt; <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L267" class="LineNr">267 </span>  <span class="Comment">// HACK: write_memory interface isn't ideal for this situation; we need</span>
<span id="L268" class="LineNr">268 </span>  <span class="Comment">// a temporary location to help copy the payload.</span>
<span id="L269" class="LineNr">269 </span>  <a href='003trace.cc.html#L167'>trace</a><span class="Delimiter">(</span><span class="Constant">9991</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;deep-copy: writing temporary &quot;</span> &lt;&lt; tmp<span class="Delimiter">.</span>value &lt;&lt; <span class="Constant">&quot;: &quot;</span> &lt;&lt; out &lt;&lt; <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L270" class="LineNr">270 </span>  <a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> tmp<span class="Delimiter">.</span>value<span class="Delimiter">,</span> out<span class="Delimiter">);</span>
<span id="L271" class="LineNr">271 </span>  payload<span class="Delimiter">.</span><a href='010vm.cc.html#L66'>set_value</a><span class="Delimiter">(</span>tmp<span class="Delimiter">.</span>value<span class="Delimiter">);</span>  <span class="Comment">// now modified for output</span>
<span id="L272" class="LineNr">272 </span>  vector&lt;<span class="Normal">double</span>&gt; old_data = read_memory<span class="Delimiter">(</span>payload<span class="Delimiter">);</span>
<span id="L273" class="LineNr">273 </span>  <a href='003trace.cc.html#L167'>trace</a><span class="Delimiter">(</span><span class="Constant">9991</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;deep-copy: really writing to &quot;</span> &lt;&lt; payload<span class="Delimiter">.</span>value &lt;&lt; <span class="Constant">' '</span> &lt;&lt; <a href='028call_return.cc.html#L163'>to_string</a><span class="Delimiter">(</span>payload<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot; (old value &quot;</span> &lt;&lt; <a href='028call_return.cc.html#L163'>to_string</a><span class="Delimiter">(</span>old_data<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot; new value &quot;</span> &lt;&lt; <a href='028call_return.cc.html#L163'>to_string</a><span class="Delimiter">(</span>data<span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;)&quot;</span> &lt;&lt; <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L274" class="LineNr">274 </span>  write_memory<span class="Delimiter">(</span>payload<span class="Delimiter">,</span> data<span class="Delimiter">);</span>
<span id="L275" class="LineNr">275 </span>  <a href='003trace.cc.html#L167'>trace</a><span class="Delimiter">(</span><span class="Constant">9991</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;deep-copy: output is &quot;</span> &lt;&lt; <a href='028call_return.cc.html#L163'>to_string</a><span class="Delimiter">(</span>data<span class="Delimiter">)</span> &lt;&lt; <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L276" class="LineNr">276 </span>  <span class="Identifier">return</span> out<span class="Delimiter">;</span>
<span id="L277" class="LineNr">277 </span><span class="Delimiter">}</span>
<span id="L278" class="LineNr">278 </span>
<span id="L279" class="LineNr">279 </span><span class="Comment">// deep-copy a non-address and return a vector of locations</span>
<span id="L280" class="LineNr">280 </span><span class="Normal">void</span> deep_copy<span class="Delimiter">(</span><span class="Normal">const</span> reagent&amp; canonized_in<span class="Delimiter">,</span> map&lt;<span class="Normal">int</span><span class="Delimiter">,</span> <span class="Normal">int</span>&gt;&amp; addresses_copied<span class="Delimiter">,</span> <span class="Normal">const</span> reagent&amp; tmp<span class="Delimiter">,</span> vector&lt;<span class="Normal">double</span>&gt;&amp; out<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L281" class="LineNr">281 </span>  assert<span class="Delimiter">(</span>!is_mu_address<span class="Delimiter">(</span>canonized_in<span class="Delimiter">));</span>
<span id="L282" class="LineNr">282 </span>  vector&lt;<span class="Normal">double</span>&gt; data = read_memory<span class="Delimiter">(</span>canonized_in<span class="Delimiter">);</span>
<span id="L283" class="LineNr">283 </span>  out<span class="Delimiter">.</span>insert<span class="Delimiter">(</span>out<span class="Delimiter">.</span><a href='003trace.cc.html#L203'>end</a><span class="Delimiter">(),</span> data<span class="Delimiter">.</span>begin<span class="Delimiter">(),</span> data<span class="Delimiter">.</span><a href='003trace.cc.html#L203'>end</a><span class="Delimiter">());</span>
<span id="L284" class="LineNr">284 </span>  <span class="Normal">if</span> <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span>Container_metadata<span class="Delimiter">,</span> canonized_in<span class="Delimiter">.</span>type<span class="Delimiter">))</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
<span id="L285" class="LineNr">285 </span>  <a href='003trace.cc.html#L167'>trace</a><span class="Delimiter">(</span><span class="Constant">9991</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;deep-copy: scanning for addresses in &quot;</span> &lt;&lt; <a href='028call_return.cc.html#L163'>to_string</a><span class="Delimiter">(</span>data<span class="Delimiter">)</span> &lt;&lt; <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L286" class="LineNr">286 </span>  <span class="Normal">const</span> container_metadata&amp; metadata = get<span class="Delimiter">(</span>Container_metadata<span class="Delimiter">,</span> canonized_in<span class="Delimiter">.</span>type<span class="Delimiter">);</span>
<span id="L287" class="LineNr">287 </span>  <span class="Normal">for</span> <span class="Delimiter">(</span>map&lt;set&lt;tag_condition_info&gt;<span class="Delimiter">,</span> set&lt;address_element_info&gt; &gt;::const_iterator p = metadata<span class="Delimiter">.</span><a href='043space.cc.html#L80'>address</a><span class="Delimiter">.</span>begin<span class="Delimiter">();</span>  p != metadata<span class="Delimiter">.</span><a href='043space.cc.html#L80'>address</a><span class="Delimiter">.</span><a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>  ++p<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L288" class="LineNr">288 </span>    <span class="Normal">if</span> <span class="Delimiter">(</span>!all_match<span class="Delimiter">(</span>data<span class="Delimiter">,</span> p<span class="Delimiter">-&gt;</span>first<span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
<span id="L289" class="LineNr">289 </span>    <span class="Normal">for</span> <span class="Delimiter">(</span>set&lt;address_element_info&gt;::const_iterator info = p<span class="Delimiter">-&gt;</span>second<span class="Delimiter">.</span>begin<span class="Delimiter">();</span>  info != p<span class="Delimiter">-&gt;</span>second<span class="Delimiter">.</span><a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>  ++info<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L290" class="LineNr">290 </span>      <span class="Comment">// hack: skip primitive containers that do their own locking; they're designed to be shared between routines</span>
<span id="L291" class="LineNr">291 </span>      <span class="Normal">if</span> <span class="Delimiter">(</span>!info<span class="Delimiter">-&gt;</span><a href='030container.cc.html#L238'>payload_type</a><span class="Delimiter">-&gt;</span>atom &amp;&amp; info<span class="Delimiter">-&gt;</span><a href='030container.cc.html#L238'>payload_type</a><span class="Delimiter">-&gt;</span>left<span class="Delimiter">-&gt;</span>name == <span class="Constant">&quot;channel&quot;</span><span class="Delimiter">)</span>
<span id="L292" class="LineNr">292 </span>        <span class="Identifier">continue</span><span class="Delimiter">;</span>
<span id="L293" class="LineNr">293 </span>      <span class="Normal">if</span> <span class="Delimiter">(</span>info<span class="Delimiter">-&gt;</span><a href='030container.cc.html#L238'>payload_type</a><span class="Delimiter">-&gt;</span>name == <span class="Constant">&quot;screen&quot;</span> || info<span class="Delimiter">-&gt;</span><a href='030container.cc.html#L238'>payload_type</a><span class="Delimiter">-&gt;</span>name == <span class="Constant">&quot;console&quot;</span> || info<span class="Delimiter">-&gt;</span><a href='030container.cc.html#L238'>payload_type</a><span class="Delimiter">-&gt;</span>name == <span class="Constant">&quot;resources&quot;</span><span class="Delimiter">)</span>
<span id="L294" class="LineNr">294 </span>        <span class="Identifier">continue</span><span class="Delimiter">;</span>
<span id="L295" class="LineNr">295 </span>      <span class="Comment">// construct a fake reagent that reads directly from the appropriate</span>
<span id="L296" class="LineNr">296 </span>      <span class="Comment">// field of the container</span>
<span id="L297" class="LineNr">297 </span>      reagent curr<span class="Delimiter">;</span>
<span id="L298" class="LineNr">298 </span>      <span class="Normal">if</span> <span class="Delimiter">(</span>info<span class="Delimiter">-&gt;</span><a href='030container.cc.html#L238'>payload_type</a><span class="Delimiter">-&gt;</span>atom<span class="Delimiter">)</span>
<span id="L299" class="LineNr">299 </span>        curr<span class="Delimiter">.</span>type = <span class="Normal">new</span> type_tree<span class="Delimiter">(</span><span class="Normal">new</span> type_tree<span class="Delimiter">(</span><span class="Constant">&quot;address&quot;</span><span class="Delimiter">),</span> <span class="Normal">new</span> type_tree<span class="Delimiter">(</span><span class="Normal">new</span> type_tree<span class="Delimiter">(</span>info<span class="Delimiter">-&gt;</span><a href='030container.cc.html#L238'>payload_type</a><span class="Delimiter">-&gt;</span>name<span class="Delimiter">),</span> <span class="Constant">NULL</span><span class="Delimiter">));</span>
<span id="L300" class="LineNr">300 </span>      <span class="Normal">else</span>
<span id="L301" class="LineNr">301 </span>        curr<span class="Delimiter">.</span>type = <span class="Normal">new</span> type_tree<span class="Delimiter">(</span><span class="Normal">new</span> type_tree<span class="Delimiter">(</span><span class="Constant">&quot;address&quot;</span><span class="Delimiter">),</span> <span class="Normal">new</span> type_tree<span class="Delimiter">(</span>*info<span class="Delimiter">-&gt;</span><a href='030container.cc.html#L238'>payload_type</a><span class="Delimiter">));</span>
<span id="L302" class="LineNr">302 </span>      curr<span class="Delimiter">.</span><a href='010vm.cc.html#L66'>set_value</a><span class="Delimiter">(</span>canonized_in<span class="Delimiter">.</span>value + info<span class="Delimiter">-&gt;</span>offset<span class="Delimiter">);</span>
<span id="L303" class="LineNr">303 </span>      curr<span class="Delimiter">.</span>properties<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>pair&lt;string<span class="Delimiter">,</span> string_tree*&gt;<span class="Delimiter">(</span><span class="Constant">&quot;raw&quot;</span><span class="Delimiter">,</span> <span class="Constant">NULL</span><span class="Delimiter">));</span>
<span id="L304" class="LineNr">304 </span>      <a href='003trace.cc.html#L167'>trace</a><span class="Delimiter">(</span><span class="Constant">9991</span><span class="Delimiter">,</span> <span class="Constant">&quot;run&quot;</span><span class="Delimiter">)</span> &lt;&lt; <span class="Constant">&quot;deep-copy: copying <a href='043space.cc.html#L80'>address</a> &quot;</span> &lt;&lt; curr<span class="Delimiter">.</span>value &lt;&lt; <a href='003trace.cc.html#L203'>end</a><span class="Delimiter">();</span>
<span id="L305" class="LineNr">305 </span>      out<span class="Delimiter">.</span>at<span class="Delimiter">(</span>info<span class="Delimiter">-&gt;</span>offset<span class="Delimiter">)</span> = <a href='071deep_copy.cc.html#L250'>deep_copy_address</a><span class="Delimiter">(</span>curr<span class="Delimiter">,</span> addresses_copied<span class="Delimiter">,</span> tmp<span class="Delimiter">);</span>
<span id="L306" class="LineNr">306 </span>    <span class="Delimiter">}</span>
<span id="L307" class="LineNr">307 </span>  <span class="Delimiter">}</span>
<span id="L308" class="LineNr">308 </span><span class="Delimiter">}</span>
<span id="L309" class="LineNr">309 </span>
<span id="L310" class="LineNr">310 </span><span class="Normal">int</span> <a href='071deep_copy.cc.html#L310'>payload_address</a><span class="Delimiter">(</span>reagent<span class="Comment">/*</span><span class="Comment">copy</span><span class="Comment">*/</span> x<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L311" class="LineNr">311 </span>  x<span class="Delimiter">.</span>properties<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>pair&lt;string<span class="Delimiter">,</span> string_tree*&gt;<span class="Delimiter">(</span><span class="Constant">&quot;lookup&quot;</span><span class="Delimiter">,</span> <span class="Constant">NULL</span><span class="Delimiter">));</span>
<span id="L312" class="LineNr">312 </span>  canonize<span class="Delimiter">(</span>x<span class="Delimiter">);</span>
<span id="L313" class="LineNr">313 </span>  <span class="Identifier">return</span> x<span class="Delimiter">.</span>value<span class="Delimiter">;</span>
<span id="L314" class="LineNr">314 </span><span class="Delimiter">}</span>
<span id="L315" class="LineNr">315 </span>
<span id="L316" class="LineNr">316 </span><span class="Normal">int</span> <a href='071deep_copy.cc.html#L316'>address_value</a><span class="Delimiter">(</span><span class="Normal">const</span> reagent&amp; x<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L317" class="LineNr">317 </span>  assert<span class="Delimiter">(</span>is_mu_address<span class="Delimiter">(</span>x<span class="Delimiter">));</span>
<span id="L318" class="LineNr">318 </span>  vector&lt;<span class="Normal">double</span>&gt; result = read_memory<span class="Delimiter">(</span>x<span class="Delimiter">);</span>
<span id="L319" class="LineNr">319 </span>  assert<span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>result<span class="Delimiter">)</span> == <span class="Constant">1</span><span class="Delimiter">);</span>
<span id="L320" class="LineNr">320 </span>  <span class="Identifier">return</span> <span class="Normal">static_cast</span>&lt;<span class="Normal">int</span>&gt;<span class="Delimiter">(</span>result<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">));</span>
<span id="L321" class="LineNr">321 </span><span class="Delimiter">}</span>
<span id="L322" class="LineNr">322 </span>
<span id="L323" class="LineNr">323 </span><span class="Delimiter">:(scenario deep_copy_stress_test_1)</span>
<span id="L324" class="LineNr">324 </span><span class="muData">container</span> foo1 [
<span id="L325" class="LineNr">325 </span>  <span class="Normal">p</span>:&amp;:num
<span id="L326" class="LineNr">326 </span>]
<span id="L327" class="LineNr">327 </span><span class="muData">container</span> foo2 [
<span id="L328" class="LineNr">328 </span>  <span class="Normal">p</span>:&amp;:foo1
<span id="L329" class="LineNr">329 </span>]
<span id="L330" class="LineNr">330 </span><span class="muData">exclusive-container</span> foo3 [
<span id="L331" class="LineNr">331 </span>  <span class="Normal">p</span>:&amp;:foo1
<span id="L332" class="LineNr">332 </span>  <span class="Normal">q</span>:&amp;:foo2
<span id="L333" class="LineNr">333 </span>]
<span id="L334" class="LineNr">334 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L335" class="LineNr">335 </span>  local-scope
<span id="L336" class="LineNr">336 </span>  <span class="Normal">x</span>:&amp;:num<span class="Special"> &lt;- </span><span class="Normal">new</span> <span class="Constant">number:type</span>
<span id="L337" class="LineNr">337 </span>  *x<span class="Special"> &lt;- </span>copy <span class="Constant">34</span>
<span id="L338" class="LineNr">338 </span>  <span class="Normal">a</span>:&amp;:foo1<span class="Special"> &lt;- </span><span class="Normal">new</span> <span class="Constant">foo1:type</span>
<span id="L339" class="LineNr">339 </span>  *a<span class="Special"> &lt;- </span>merge x
<span id="L340" class="LineNr">340 </span>  <span class="Normal">b</span>:&amp;:foo2<span class="Special"> &lt;- </span><span class="Normal">new</span> <span class="Constant">foo2:type</span>
<span id="L341" class="LineNr">341 </span>  *b<span class="Special"> &lt;- </span>merge a
<span id="L342" class="LineNr">342 </span>  <span class="Normal">c</span>:foo3<span class="Special"> &lt;- </span>merge <span class="Constant">1</span>/q<span class="Delimiter">,</span> b
<span id="L343" class="LineNr">343 </span>  <span class="Normal">d</span>:foo3<span class="Special"> &lt;- </span>deep-copy c
<span id="L344" class="LineNr">344 </span>  <span class="Normal">e</span>:&amp;:foo2<span class="Delimiter">,</span> z:<span class="Normal">bool</span><span class="Special"> &lt;- </span>maybe-convert d<span class="Delimiter">,</span> <span class="Constant">q:variant</span>
<span id="L345" class="LineNr">345 </span>  <span class="Normal">f</span>:&amp;:foo1<span class="Special"> &lt;- </span>get *e<span class="Delimiter">,</span> <span class="Constant">p:offset</span>
<span id="L346" class="LineNr">346 </span>  <span class="Normal">g</span>:&amp;:num<span class="Special"> &lt;- </span>get *f<span class="Delimiter">,</span> <span class="Constant">p:offset</span>
<span id="L347" class="LineNr">347 </span>  <span class="Constant">1</span>:num/<span class="Special">raw &lt;- </span>copy *g
<span id="L348" class="LineNr">348 </span>]
<span id="L349" class="LineNr">349 </span><span class="traceContains">+mem: storing 34 in location 1</span>
<span id="L350" class="LineNr">350 </span>
<span id="L351" class="LineNr">351 </span><span class="Delimiter">:(scenario deep_copy_stress_test_2)</span>
<span id="L352" class="LineNr">352 </span><span class="muData">container</span> foo1 [
<span id="L353" class="LineNr">353 </span>  <span class="Normal">p</span>:&amp;:num
<span id="L354" class="LineNr">354 </span>]
<span id="L355" class="LineNr">355 </span><span class="muData">container</span> foo2 [
<span id="L356" class="LineNr">356 </span>  <span class="Normal">p</span>:&amp;:foo1
<span id="L357" class="LineNr">357 </span>]
<span id="L358" class="LineNr">358 </span><span class="muData">exclusive-container</span> foo3 [
<span id="L359" class="LineNr">359 </span>  <span class="Normal">p</span>:&amp;:foo1
<span id="L360" class="LineNr">360 </span>  <span class="Normal">q</span>:&amp;:foo2
<span id="L361" class="LineNr">361 </span>]
<span id="L362" class="LineNr">362 </span><span class="muData">container</span> foo4 [
<span id="L363" class="LineNr">363 </span>  <span class="Normal">p</span>:num
<span id="L364" class="LineNr">364 </span>  <span class="Normal">q</span>:&amp;:foo3
<span id="L365" class="LineNr">365 </span>]
<span id="L366" class="LineNr">366 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L367" class="LineNr">367 </span>  local-scope
<span id="L368" class="LineNr">368 </span>  <span class="Normal">x</span>:&amp;:num<span class="Special"> &lt;- </span><span class="Normal">new</span> <span class="Constant">number:type</span>
<span id="L369" class="LineNr">369 </span>  *x<span class="Special"> &lt;- </span>copy <span class="Constant">34</span>
<span id="L370" class="LineNr">370 </span>  <span class="Normal">a</span>:&amp;:foo1<span class="Special"> &lt;- </span><span class="Normal">new</span> <span class="Constant">foo1:type</span>
<span id="L371" class="LineNr">371 </span>  *a<span class="Special"> &lt;- </span>merge x
<span id="L372" class="LineNr">372 </span>  <span class="Normal">b</span>:&amp;:foo2<span class="Special"> &lt;- </span><span class="Normal">new</span> <span class="Constant">foo2:type</span>
<span id="L373" class="LineNr">373 </span>  *b<span class="Special"> &lt;- </span>merge a
<span id="L374" class="LineNr">374 </span>  <span class="Normal">c</span>:&amp;:foo3<span class="Special"> &lt;- </span><span class="Normal">new</span> <span class="Constant">foo3:type</span>
<span id="L375" class="LineNr">375 </span>  *c<span class="Special"> &lt;- </span>merge <span class="Constant">1</span>/q<span class="Delimiter">,</span> b
<span id="L376" class="LineNr">376 </span>  <span class="Normal">d</span>:foo4<span class="Special"> &lt;- </span>merge <span class="Constant">35</span><span class="Delimiter">,</span> c
<span id="L377" class="LineNr">377 </span>  <span class="Normal">e</span>:foo4<span class="Special"> &lt;- </span>deep-copy d
<span id="L378" class="LineNr">378 </span>  <span class="Normal">f</span>:&amp;:foo3<span class="Special"> &lt;- </span>get e<span class="Delimiter">,</span> <span class="Constant">q:offset</span>
<span id="L379" class="LineNr">379 </span>  <span class="Normal">g</span>:&amp;:foo2<span class="Delimiter">,</span> z:<span class="Normal">bool</span><span class="Special"> &lt;- </span>maybe-convert *f<span class="Delimiter">,</span> <span class="Constant">q:variant</span>
<span id="L380" class="LineNr">380 </span>  <span class="Normal">h</span>:&amp;:foo1<span class="Special"> &lt;- </span>get *g<span class="Delimiter">,</span> <span class="Constant">p:offset</span>
<span id="L381" class="LineNr">381 </span>  <span class="Normal">y</span>:&amp;:num<span class="Special"> &lt;- </span>get *h<span class="Delimiter">,</span> <span class="Constant">p:offset</span>
<span id="L382" class="LineNr">382 </span>  <span class="Constant">1</span>:num/<span class="Special">raw &lt;- </span>copy *y
<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">:(scenario deep_copy_cycles)</span>
<span id="L387" class="LineNr">387 </span><span class="muData">container</span> foo [
<span id="L388" class="LineNr">388 </span>  <span class="Normal">p</span>:num
<span id="L389" class="LineNr">389 </span>  <span class="Normal">q</span>:&amp;:foo
<span id="L390" class="LineNr">390 </span>]
<span id="L391" class="LineNr">391 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L392" class="LineNr">392 </span>  local-scope
<span id="L393" class="LineNr">393 </span>  <span class="Normal">x</span>:&amp;:foo<span class="Special"> &lt;- </span><span class="Normal">new</span> <span class="Constant">foo:type</span>
<span id="L394" class="LineNr">394 </span>  *x<span class="Special"> &lt;- </span><a href='001help.cc.html#L221'>put</a> *x<span class="Delimiter">,</span> <span class="Constant">p:offset</span><span class="Delimiter">,</span> <span class="Constant">34</span>
<span id="L395" class="LineNr">395 </span>  *x<span class="Special"> &lt;- </span><a href='001help.cc.html#L221'>put</a> *x<span class="Delimiter">,</span> <span class="Constant">q:offset</span><span class="Delimiter">,</span> x  <span class="Comment"># create a cycle</span>
<span id="L396" class="LineNr">396 </span>  <span class="Normal">y</span>:&amp;:foo<span class="Special"> &lt;- </span>deep-copy x
<span id="L397" class="LineNr">397 </span>  <span class="Constant">1</span>:num/<span class="Special">raw &lt;- </span>get *y<span class="Delimiter">,</span> <span class="Constant">p:offset</span>
<span id="L398" class="LineNr">398 </span>  <span class="Normal">y2</span>:&amp;:foo<span class="Special"> &lt;- </span>get *y<span class="Delimiter">,</span> <span class="Constant">q:offset</span>
<span id="L399" class="LineNr">399 </span>  <span class="Constant">2</span>:<span class="Normal">bool</span>/<span class="Special">raw &lt;- </span>equal y<span class="Delimiter">,</span> y2  <span class="Comment"># is it still a cycle?</span>
<span id="L400" class="LineNr">400 </span>  <span class="Constant">3</span>:<span class="Normal">bool</span>/<span class="Special">raw &lt;- </span>equal x<span class="Delimiter">,</span> y  <span class="Comment"># is it the same cycle?</span>
<span id="L401" class="LineNr">401 </span>  <span class="Comment"># not bothering cleaning up; both cycles leak memory</span>
<span id="L402" class="LineNr">402 </span>]
<span id="L403" class="LineNr">403 </span><span class="traceContains">+mem: storing 34 in location 1</span>
<span id="L404" class="LineNr">404 </span><span class="Comment"># deep copy also contains a cycle</span>
<span id="L405" class="LineNr">405 </span><span class="traceContains">+mem: storing 1 in location 2</span>
<span id="L406" class="LineNr">406 </span><span class="Comment"># but it's a completely different (disjoint) cycle</span>
<span id="L407" class="LineNr">407 </span><span class="traceContains">+mem: storing 0 in location 3</span>
<span id="L408" class="LineNr">408 </span>
<span id="L409" class="LineNr">409 </span><span class="Comment">//: todo: version of deep_copy_cycles that breaks cycles at end and verifies no memory leaks</span>
<span id="L410" class="LineNr">410 </span><span class="Comment">//: needs approximate matching over scenario traces</span>
<span id="L411" class="LineNr">411 </span>
<span id="L412" class="LineNr">412 </span><span class="Delimiter">:(scenario deep_copy_skips_channel)</span>
<span id="L413" class="LineNr">413 </span><span class="Comment"># ugly! dummy 'channel' type if we happen to be building without that layer</span>
<span id="L414" class="LineNr">414 </span><span class="Special">% if (!contains_key(Type_ordinal, &quot;channel&quot;)) get_or_insert(Type, put(Type_ordinal, &quot;channel&quot;, Next_type_ordinal++)).name = &quot;channel&quot;;</span>
<span id="L415" class="LineNr">415 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L416" class="LineNr">416 </span>  local-scope
<span id="L417" class="LineNr">417 </span>  <span class="Normal">x</span>:&amp;:channel:num<span class="Special"> &lt;- </span><span class="Normal">new</span> <span class="Delimiter">{(</span>channel num<span class="Delimiter">)</span>: type<span class="Delimiter">}</span>
<span id="L418" class="LineNr">418 </span>  <span class="Normal">y</span>:&amp;:channel:num<span class="Special"> &lt;- </span>deep-copy x
<span id="L419" class="LineNr">419 </span>  <span class="Constant">10</span>:<span class="Normal">bool</span>/<span class="Special">raw &lt;- </span>equal x<span class="Delimiter">,</span> y
<span id="L420" class="LineNr">420 </span>]
<span id="L421" class="LineNr">421 </span><span class="Comment"># channels are never deep-copied</span>
<span id="L422" class="LineNr">422 </span><span class="traceContains">+mem: storing 1 in location 10</span>
<span id="L423" class="LineNr">423 </span>
<span id="L424" class="LineNr">424 </span><span class="Delimiter">:(scenario deep_copy_skips_nested_channel)</span>
<span id="L425" class="LineNr">425 </span><span class="Comment"># ugly! dummy 'channel' type if we happen to be building without that layer</span>
<span id="L426" class="LineNr">426 </span><span class="Special">% if (!contains_key(Type_ordinal, &quot;channel&quot;)) get_or_insert(Type, put(Type_ordinal, &quot;channel&quot;, Next_type_ordinal++)).name = &quot;channel&quot;;</span>
<span id="L427" class="LineNr">427 </span><span class="muData">container</span> foo [
<span id="L428" class="LineNr">428 </span>  <span class="Normal">c</span>:&amp;:channel:num
<span id="L429" class="LineNr">429 </span>]
<span id="L430" class="LineNr">430 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L431" class="LineNr">431 </span>  local-scope
<span id="L432" class="LineNr">432 </span>  <span class="Normal">x</span>:&amp;:foo<span class="Special"> &lt;- </span><span class="Normal">new</span> <span class="Constant">foo:type</span>
<span id="L433" class="LineNr">433 </span>  <span class="Normal">y</span>:&amp;:foo<span class="Special"> &lt;- </span>deep-copy x
<span id="L434" class="LineNr">434 </span>  <span class="Normal">xc</span>:&amp;:channel:num<span class="Special"> &lt;- </span>get *x<span class="Delimiter">,</span> <span class="Constant">c:offset</span>
<span id="L435" class="LineNr">435 </span>  <span class="Normal">yc</span>:&amp;:channel:num<span class="Special"> &lt;- </span>get *y<span class="Delimiter">,</span> <span class="Constant">c:offset</span>
<span id="L436" class="LineNr">436 </span>  <span class="Constant">10</span>:<span class="Normal">bool</span>/<span class="Special">raw &lt;- </span>equal xc<span class="Delimiter">,</span> yc
<span id="L437" class="LineNr">437 </span>]
<span id="L438" class="LineNr">438 </span><span class="Comment"># channels are never deep-copied</span>
<span id="L439" class="LineNr">439 </span><span class="traceContains">+mem: storing 1 in location 10</span>
<span id="L440" class="LineNr">440 </span>
<span id="L441" class="LineNr">441 </span><span class="Delimiter">:(scenario deep_copy_skips_resources)</span>
<span id="L442" class="LineNr">442 </span><span class="Comment"># ugly! dummy 'resources' type if we happen to be building without that layer</span>
<span id="L443" class="LineNr">443 </span><span class="Special">% if (!contains_key(Type_ordinal, &quot;resources&quot;)) get_or_insert(Type, put(Type_ordinal, &quot;resources&quot;, Next_type_ordinal++)).name = &quot;resources&quot;;</span>
<span id="L444" class="LineNr">444 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L445" class="LineNr">445 </span>  local-scope
<span id="L446" class="LineNr">446 </span>  <span class="Normal">x</span>:&amp;:resources<span class="Special"> &lt;- </span><span class="Normal">new</span> <span class="Constant">resources:type</span>
<span id="L447" class="LineNr">447 </span>  <span class="Normal">y</span>:&amp;:resources<span class="Special"> &lt;- </span>deep-copy x
<span id="L448" class="LineNr">448 </span>  <span class="Constant">10</span>:<span class="Normal">bool</span>/<span class="Special">raw &lt;- </span>equal x<span class="Delimiter">,</span> y
<span id="L449" class="LineNr">449 </span>]
<span id="L450" class="LineNr">450 </span><span class="Comment"># resources are never deep-copied</span>
<span id="L451" class="LineNr">451 </span><span class="traceContains">+mem: storing 1 in location 10</span>
<span id="L452" class="LineNr">452 </span>
<span id="L453" class="LineNr">453 </span><span class="Delimiter">:(scenario deep_copy_skips_nested_resources)</span>
<span id="L454" class="LineNr">454 </span><span class="Comment"># ugly! dummy 'resources' type if we happen to be building without that layer</span>
<span id="L455" class="LineNr">455 </span><span class="Special">% if (!contains_key(Type_ordinal, &quot;resources&quot;)) get_or_insert(Type, put(Type_ordinal, &quot;resources&quot;, Next_type_ordinal++)).name = &quot;resources&quot;;</span>
<span id="L456" class="LineNr">456 </span><span class="muData">container</span> foo [
<span id="L457" class="LineNr">457 </span>  <span class="Normal">c</span>:&amp;:resources
<span id="L458" class="LineNr">458 </span>]
<span id="L459" class="LineNr">459 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L460" class="LineNr">460 </span>  local-scope
<span id="L461" class="LineNr">461 </span>  <span class="Normal">x</span>:&amp;:foo<span class="Special"> &lt;- </span><span class="Normal">new</span> <span class="Constant">foo:type</span>
<span id="L462" class="LineNr">462 </span>  <span class="Normal">y</span>:&amp;:foo<span class="Special"> &lt;- </span>deep-copy x
<span id="L463" class="LineNr">463 </span>  <span class="Normal">xc</span>:&amp;:resources<span class="Special"> &lt;- </span>get *x<span class="Delimiter">,</span> <span class="Constant">c:offset</span>
<span id="L464" class="LineNr">464 </span>  <span class="Normal">yc</span>:&amp;:resources<span class="Special"> &lt;- </span>get *y<span class="Delimiter">,</span> <span class="Constant">c:offset</span>
<span id="L465" class="LineNr">465 </span>  <span class="Constant">10</span>:<span class="Normal">bool</span>/<span class="Special">raw &lt;- </span>equal xc<span class="Delimiter">,</span> yc
<span id="L466" class="LineNr">466 </span>]
<span id="L467" class="LineNr">467 </span><span class="Comment"># resources are never deep-copied</span>
<span id="L468" class="LineNr">468 </span><span class="traceContains">+mem: storing 1 in location 10</span>
</pre>
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<!-- vim: set foldmethod=manual : -->
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