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<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">// Implications: Refcounts of all data pointed to by the original ingredient</span>
<span id="L7" class="LineNr"> 7 </span><span class="Comment">// will remain unchanged. Refcounts of all data pointed to by the (newly</span>
<span id="L8" class="LineNr"> 8 </span><span class="Comment">// created) result will be 1, in the absence of cycles.</span>
<span id="L9" class="LineNr"> 9 </span><span class="Comment">//</span>
<span id="L10" class="LineNr"> 10 </span><span class="Comment">// We do handle cycles in the ingredient, however. All cycles are translated</span>
<span id="L11" class="LineNr"> 11 </span><span class="Comment">// to new cycles in the product.</span>
<span id="L12" class="LineNr"> 12 </span>
<span id="L13" class="LineNr"> 13 </span><span class="Delimiter">:(scenario deep_copy_number)</span>
<span id="L14" class="LineNr"> 14 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L15" class="LineNr"> 15 </span> local-scope
<span id="L16" class="LineNr"> 16 </span> <span class="Normal">x</span>:num<span class="Special"> <- </span>copy <span class="Constant">34</span>
<span id="L17" class="LineNr"> 17 </span> <span class="Normal">y</span>:num<span class="Special"> <- </span>deep-copy x
<span id="L18" class="LineNr"> 18 </span> <span class="Constant">10</span>:<span class="Normal">bool</span>/<span class="Special">raw <- </span>equal x<span class="Delimiter">,</span> y
<span id="L19" class="LineNr"> 19 </span>]
<span id="L20" class="LineNr"> 20 </span><span class="Comment"># non-address primitives are identical</span>
<span id="L21" class="LineNr"> 21 </span><span class="traceContains">+mem: storing 1 in location 10</span>
<span id="L22" class="LineNr"> 22 </span>
<span id="L23" class="LineNr"> 23 </span><span class="Delimiter">:(scenario deep_copy_container_without_address)</span>
<span id="L24" class="LineNr"> 24 </span><span class="muData">container</span> foo [
<span id="L25" class="LineNr"> 25 </span> <span class="Normal">x</span>:num
<span id="L26" class="LineNr"> 26 </span> <span class="Normal">y</span>:num
<span id="L27" class="LineNr"> 27 </span>]
<span id="L28" class="LineNr"> 28 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L29" class="LineNr"> 29 </span> local-scope
<span id="L30" class="LineNr"> 30 </span> <span class="Normal">a</span>:foo<span class="Special"> <- </span>merge <span class="Constant">34</span><span class="Delimiter">,</span> <span class="Constant">35</span>
<span id="L31" class="LineNr"> 31 </span> <span class="Normal">b</span>:foo<span class="Special"> <- </span>deep-copy a
<span id="L32" class="LineNr"> 32 </span> <span class="Constant">10</span>:<span class="Normal">bool</span>/<span class="Special">raw <- </span>equal a<span class="Delimiter">,</span> b
<span id="L33" class="LineNr"> 33 </span>]
<span id="L34" class="LineNr"> 34 </span><span class="Comment"># containers are identical as long as they don't contain addresses</span>
<span id="L35" class="LineNr"> 35 </span><span class="traceContains">+mem: storing 1 in location 10</span>
<span id="L36" class="LineNr"> 36 </span>
<span id="L37" class="LineNr"> 37 </span><span class="Delimiter">:(scenario deep_copy_address)</span>
<span id="L38" class="LineNr"> 38 </span><span class="Special">% Memory_allocated_until = 200;</span>
<span id="L39" class="LineNr"> 39 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L40" class="LineNr"> 40 </span> <span class="Comment"># avoid all memory allocations except the implicit ones inside deep-copy, so</span>
<span id="L41" class="LineNr"> 41 </span> <span class="Comment"># that the result is deterministic</span>
<span id="L42" class="LineNr"> 42 </span> <span class="Constant">1</span>:&:num<span class="Special"> <- </span>copy <span class="Constant">100</span>/unsafe <span class="Comment"># pretend allocation</span>
<span id="L43" class="LineNr"> 43 </span> *<span class="Constant">1</span>:&:num<span class="Special"> <- </span>copy <span class="Constant">34</span>
<span id="L44" class="LineNr"> 44 </span> <span class="Constant">2</span>:&:num<span class="Special"> <- </span>deep-copy <span class="Constant">1</span>:&:num
<span id="L45" class="LineNr"> 45 </span> <span class="Constant">10</span>:<span class="Normal">bool</span><span class="Special"> <- </span>equal <span class="Constant">1</span>:&:num<span class="Delimiter">,</span> <span class="Constant">2</span>:&:num
<span id="L46" class="LineNr"> 46 </span> <span class="Constant">11</span>:<span class="Normal">bool</span><span class="Special"> <- </span>equal *<span class="Constant">1</span>:&:num<span class="Delimiter">,</span> *<span class="Constant">2</span>:&:num
<span id="L47" class="LineNr"> 47 </span> <span class="Constant">2</span>:&:num<span class="Special"> <- </span>copy <span class="Constant">0</span>
<span id="L48" class="LineNr"> 48 </span>]
<span id="L49" class="LineNr"> 49 </span><span class="Comment"># the result of deep-copy is a new address</span>
<span id="L50" class="LineNr"> 50 </span><span class="traceContains">+mem: storing 0 in location 10</span>
<span id="L51" class="LineNr"> 51 </span><span class="Comment"># however, the contents are identical</span>
<span id="L52" class="LineNr"> 52 </span><span class="traceContains">+mem: storing 1 in location 11</span>
<span id="L53" class="LineNr"> 53 </span><span class="Comment"># the result of deep-copy gets a refcount of 1</span>
<span id="L54" class="LineNr"> 54 </span><span class="Comment"># (its address 202 = 200 base + 2 for temporary space inside deep-copy)</span>
<span id="L55" class="LineNr"> 55 </span><span class="traceContains">+run: {2: ("address" "number")} <- copy {0: "literal"}</span>
<span id="L56" class="LineNr"> 56 </span><span class="traceContains">+mem: decrementing refcount of 202: 1 -> 0</span>
<span id="L57" class="LineNr"> 57 </span><span class="traceContains">+abandon: saving 202 in free-list of size 2</span>
<span id="L58" class="LineNr"> 58 </span>
<span id="L59" class="LineNr"> 59 </span><span class="Delimiter">:(scenario deep_copy_address_to_container)</span>
<span id="L60" class="LineNr"> 60 </span><span class="Special">% Memory_allocated_until = 200;</span>
<span id="L61" class="LineNr"> 61 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L62" class="LineNr"> 62 </span> <span class="Comment"># avoid all memory allocations except the implicit ones inside deep-copy, so</span>
<span id="L63" class="LineNr"> 63 </span> <span class="Comment"># that the result is deterministic</span>
<span id="L64" class="LineNr"> 64 </span> <span class="Constant">1</span>:&:point<span class="Special"> <- </span>copy <span class="Constant">100</span>/unsafe <span class="Comment"># pretend allocation</span>
<span id="L65" class="LineNr"> 65 </span> *<span class="Constant">1</span>:&:point<span class="Special"> <- </span>merge <span class="Constant">34</span><span class="Delimiter">,</span> <span class="Constant">35</span>
<span id="L66" class="LineNr"> 66 </span> <span class="Constant">2</span>:&:point<span class="Special"> <- </span>deep-copy <span class="Constant">1</span>:&:point
<span id="L67" class="LineNr"> 67 </span> <span class="Constant">10</span>:<span class="Normal">bool</span><span class="Special"> <- </span>equal <span class="Constant">1</span>:&:point<span class="Delimiter">,</span> <span class="Constant">2</span>:&:point
<span id="L68" class="LineNr"> 68 </span> <span class="Constant">11</span>:<span class="Normal">bool</span><span class="Special"> <- </span>equal *<span class="Constant">1</span>:&:point<span class="Delimiter">,</span> *<span class="Constant">2</span>:&:point
<span id="L69" class="LineNr"> 69 </span>]
<span id="L70" class="LineNr"> 70 </span><span class="Comment"># the result of deep-copy is a new address</span>
<span id="L71" class="LineNr"> 71 </span><span class="traceContains">+mem: storing 0 in location 10</span>
<span id="L72" class="LineNr"> 72 </span><span class="Comment"># however, the contents are identical</span>
<span id="L73" class="LineNr"> 73 </span><span class="traceContains">+mem: storing 1 in location 11</span>
<span id="L74" class="LineNr"> 74 </span>
<span id="L75" class="LineNr"> 75 </span><span class="Delimiter">:(scenario deep_copy_address_to_address)</span>
<span id="L76" class="LineNr"> 76 </span><span class="Special">% Memory_allocated_until = 200;</span>
<span id="L77" class="LineNr"> 77 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L78" class="LineNr"> 78 </span> <span class="Comment"># avoid all memory allocations except the implicit ones inside deep-copy, so</span>
<span id="L79" class="LineNr"> 79 </span> <span class="Comment"># that the result is deterministic</span>
<span id="L80" class="LineNr"> 80 </span> <span class="Constant">1</span>:&:&:num<span class="Special"> <- </span>copy <span class="Constant">100</span>/unsafe <span class="Comment"># pretend allocation</span>
<span id="L81" class="LineNr"> 81 </span> *<span class="Constant">1</span>:&:&:num<span class="Special"> <- </span>copy <span class="Constant">150</span>/unsafe
<span id="L82" class="LineNr"> 82 </span> **<span class="Constant">1</span>:&:&:num<span class="Special"> <- </span>copy <span class="Constant">34</span>
<span id="L83" class="LineNr"> 83 </span> <span class="Constant">2</span>:&:&:num<span class="Special"> <- </span>deep-copy <span class="Constant">1</span>:&:&:num
<span id="L84" class="LineNr"> 84 </span> <span class="Constant">10</span>:<span class="Normal">bool</span><span class="Special"> <- </span>equal <span class="Constant">1</span>:&:&:num<span class="Delimiter">,</span> <span class="Constant">2</span>:&:&:num
<span id="L85" class="LineNr"> 85 </span> <span class="Constant">11</span>:<span class="Normal">bool</span><span class="Special"> <- </span>equal *<span class="Constant">1</span>:&:&:num<span class="Delimiter">,</span> *<span class="Constant">2</span>:&:&:num
<span id="L86" class="LineNr"> 86 </span> <span class="Constant">12</span>:<span class="Normal">bool</span><span class="Special"> <- </span>equal **<span class="Constant">1</span>:&:&:num<span class="Delimiter">,</span> **<span class="Constant">2</span>:&:&:num
<span id="L87" class="LineNr"> 87 </span>]
<span id="L88" class="LineNr"> 88 </span><span class="Comment"># the result of deep-copy is a new address</span>
<span id="L89" class="LineNr"> 89 </span><span class="traceContains">+mem: storing 0 in location 10</span>
<span id="L90" class="LineNr"> 90 </span><span class="Comment"># any addresses in it or pointed to it are also new</span>
<span id="L91" class="LineNr"> 91 </span><span class="traceContains">+mem: storing 0 in location 11</span>
<span id="L92" class="LineNr"> 92 </span><span class="Comment"># however, the non-address contents are identical</span>
<span id="L93" class="LineNr"> 93 </span><span class="traceContains">+mem: storing 1 in location 12</span>
<span id="L94" class="LineNr"> 94 </span>
<span id="L95" class="LineNr"> 95 </span><span class="Delimiter">:(scenario deep_copy_array)</span>
<span id="L96" class="LineNr"> 96 </span><span class="Special">% Memory_allocated_until = 200;</span>
<span id="L97" class="LineNr"> 97 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L98" class="LineNr"> 98 </span> <span class="Comment"># avoid all memory allocations except the implicit ones inside deep-copy, so</span>
<span id="L99" class="LineNr"> 99 </span> <span class="Comment"># that the result is deterministic</span>
<span id="L100" class="LineNr">100 </span> <span class="Constant">100</span>:num<span class="Special"> <- </span>copy <span class="Constant">1</span> <span class="Comment"># pretend refcount</span>
<span id="L101" class="LineNr">101 </span> <span class="Constant">101</span>:num<span class="Special"> <- </span>copy <span class="Constant">3</span> <span class="Comment"># pretend array length</span>
<span id="L102" class="LineNr">102 </span> <span class="Constant">1</span>:&:@:num<span class="Special"> <- </span>copy <span class="Constant">100</span>/unsafe <span class="Comment"># pretend allocation</span>
<span id="L103" class="LineNr">103 </span> put-index *<span class="Constant">1</span>:&:@:num<span class="Delimiter">,</span> <span class="Constant">0</span><span class="Delimiter">,</span> <span class="Constant">34</span>
<span id="L104" class="LineNr">104 </span> put-index *<span class="Constant">1</span>:&:@:num<span class="Delimiter">,</span> <span class="Constant">1</span><span class="Delimiter">,</span> <span class="Constant">35</span>
<span id="L105" class="LineNr">105 </span> put-index *<span class="Constant">1</span>:&:@:num<span class="Delimiter">,</span> <span class="Constant">2</span><span class="Delimiter">,</span> <span class="Constant">36</span>
<span id="L106" class="LineNr">106 </span> stash [old:]<span class="Delimiter">,</span> *<span class="Constant">1</span>:&:@:num
<span id="L107" class="LineNr">107 </span> <span class="Constant">2</span>:&:@:num<span class="Special"> <- </span>deep-copy <span class="Constant">1</span>:&:@:num
<span id="L108" class="LineNr">108 </span> stash <span class="Constant">2</span>:&:@:num
<span id="L109" class="LineNr">109 </span> stash [<span class="Normal">new</span>:]<span class="Delimiter">,</span> *<span class="Constant">2</span>:&:@:num
<span id="L110" class="LineNr">110 </span> <span class="Constant">10</span>:<span class="Normal">bool</span><span class="Special"> <- </span>equal <span class="Constant">1</span>:&:@:num<span class="Delimiter">,</span> <span class="Constant">2</span>:&:@:num
<span id="L111" class="LineNr">111 </span> <span class="Constant">11</span>:<span class="Normal">bool</span><span class="Special"> <- </span>equal *<span class="Constant">1</span>:&:@:num<span class="Delimiter">,</span> *<span class="Constant">2</span>:&:@:num
<span id="L112" class="LineNr">112 </span>]
<span id="L113" class="LineNr">113 </span><span class="traceContains">+app: old: 3 34 35 36</span>
<span id="L114" class="LineNr">114 </span><span class="traceContains">+app: new: 3 34 35 36</span>
<span id="L115" class="LineNr">115 </span><span class="Comment"># the result of deep-copy is a new address</span>
<span id="L116" class="LineNr">116 </span><span class="traceContains">+mem: storing 0 in location 10</span>
<span id="L117" class="LineNr">117 </span><span class="Comment"># however, the contents are identical</span>
<span id="L118" class="LineNr">118 </span><span class="traceContains">+mem: storing 1 in location 11</span>
<span id="L119" class="LineNr">119 </span>
<span id="L120" class="LineNr">120 </span><span class="Delimiter">:(scenario deep_copy_container_with_address)</span>
<span id="L121" class="LineNr">121 </span><span class="muData">container</span> foo [
<span id="L122" class="LineNr">122 </span> <span class="Normal">x</span>:num
<span id="L123" class="LineNr">123 </span> <span class="Normal">y</span>:&:num
<span id="L124" class="LineNr">124 </span>]
<span id="L125" class="LineNr">125 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L126" class="LineNr">126 </span> local-scope
<span id="L127" class="LineNr">127 </span> <span class="Normal">y0</span>:&:num<span class="Special"> <- </span><span class="Normal">new</span> <span class="Constant">number:type</span>
<span id="L128" class="LineNr">128 </span> *y0<span class="Special"> <- </span>copy <span class="Constant">35</span>
<span id="L129" class="LineNr">129 </span> <span class="Normal">a</span>:foo<span class="Special"> <- </span>merge <span class="Constant">34</span><span class="Delimiter">,</span> y0
<span id="L130" class="LineNr">130 </span> <span class="Normal">b</span>:foo<span class="Special"> <- </span>deep-copy a
<span id="L131" class="LineNr">131 </span> <span class="Constant">10</span>:<span class="Normal">bool</span>/<span class="Special">raw <- </span>equal a<span class="Delimiter">,</span> b
<span id="L132" class="LineNr">132 </span> <span class="Normal">y1</span>:&:num<span class="Special"> <- </span>get b<span class="Delimiter">,</span> <span class="Constant">y:offset</span>
<span id="L133" class="LineNr">133 </span> <span class="Constant">11</span>:<span class="Normal">bool</span>/<span class="Special">raw <- </span>equal y0<span class="Delimiter">,</span> y1
<span id="L134" class="LineNr">134 </span> <span class="Constant">12</span>:num/<span class="Special">raw <- </span>copy *y1
<span id="L135" class="LineNr">135 </span>]
<span id="L136" class="LineNr">136 </span><span class="Comment"># containers containing addresses are not identical to their deep copies</span>
<span id="L137" class="LineNr">137 </span><span class="traceContains">+mem: storing 0 in location 10</span>
<span id="L138" class="LineNr">138 </span><span class="Comment"># the addresses they contain are not identical either</span>
<span id="L139" class="LineNr">139 </span><span class="traceContains">+mem: storing 0 in location 11</span>
<span id="L140" class="LineNr">140 </span><span class="traceContains">+mem: storing 35 in location 12</span>
<span id="L141" class="LineNr">141 </span>
<span id="L142" class="LineNr">142 </span><span class="Delimiter">:(scenario deep_copy_exclusive_container_with_address)</span>
<span id="L143" class="LineNr">143 </span><span class="muData">exclusive-container</span> foo [
<span id="L144" class="LineNr">144 </span> <span class="Normal">x</span>:num
<span id="L145" class="LineNr">145 </span> <span class="Normal">y</span>:&:num
<span id="L146" class="LineNr">146 </span>]
<span id="L147" class="LineNr">147 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L148" class="LineNr">148 </span> local-scope
<span id="L149" class="LineNr">149 </span> <span class="Normal">y0</span>:&:num<span class="Special"> <- </span><span class="Normal">new</span> <span class="Constant">number:type</span>
<span id="L150" class="LineNr">150 </span> *y0<span class="Special"> <- </span>copy <span class="Constant">34</span>
<span id="L151" class="LineNr">151 </span> <span class="Normal">a</span>:foo<span class="Special"> <- </span>merge <span class="Constant">1</span>/y<span class="Delimiter">,</span> y0
<span id="L152" class="LineNr">152 </span> <span class="Normal">b</span>:foo<span class="Special"> <- </span>deep-copy a
<span id="L153" class="LineNr">153 </span> <span class="Constant">10</span>:<span class="Normal">bool</span>/<span class="Special">raw <- </span>equal a<span class="Delimiter">,</span> b
<span id="L154" class="LineNr">154 </span> <span class="Normal">y1</span>:&:num<span class="Delimiter">,</span> z:<span class="Normal">bool</span><span class="Special"> <- </span>maybe-convert b<span class="Delimiter">,</span> <span class="Constant">y:variant</span>
<span id="L155" class="LineNr">155 </span> <span class="Constant">11</span>:<span class="Normal">bool</span>/<span class="Special">raw <- </span>equal y0<span class="Delimiter">,</span> y1
<span id="L156" class="LineNr">156 </span> <span class="Constant">12</span>:num/<span class="Special">raw <- </span>copy *y1
<span id="L157" class="LineNr">157 </span>]
<span id="L158" class="LineNr">158 </span><span class="Comment"># exclusive containers containing addresses are not identical to their deep copies</span>
<span id="L159" class="LineNr">159 </span><span class="traceContains">+mem: storing 0 in location 10</span>
<span id="L160" class="LineNr">160 </span><span class="Comment"># the addresses they contain are not identical either</span>
<span id="L161" class="LineNr">161 </span><span class="traceContains">+mem: storing 0 in location 11</span>
<span id="L162" class="LineNr">162 </span><span class="traceContains">+mem: storing 34 in location 12</span>
<span id="L163" class="LineNr">163 </span>
<span id="L164" class="LineNr">164 </span><span class="Delimiter">:(scenario deep_copy_exclusive_container_with_container_with_address)</span>
<span id="L165" class="LineNr">165 </span><span class="muData">exclusive-container</span> foo [
<span id="L166" class="LineNr">166 </span> <span class="Normal">x</span>:num
<span id="L167" class="LineNr">167 </span> <span class="Normal">y</span>:bar <span class="Comment"># inline</span>
<span id="L168" class="LineNr">168 </span>]
<span id="L169" class="LineNr">169 </span><span class="muData">container</span> bar [
<span id="L170" class="LineNr">170 </span> <span class="Normal">x</span>:&:num
<span id="L171" class="LineNr">171 </span>]
<span id="L172" class="LineNr">172 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L173" class="LineNr">173 </span> local-scope
<span id="L174" class="LineNr">174 </span> <span class="Normal">y0</span>:&:num<span class="Special"> <- </span><span class="Normal">new</span> <span class="Constant">number:type</span>
<span id="L175" class="LineNr">175 </span> *y0<span class="Special"> <- </span>copy <span class="Constant">34</span>
<span id="L176" class="LineNr">176 </span> <span class="Normal">a</span>:bar<span class="Special"> <- </span>merge y0
<span id="L177" class="LineNr">177 </span> <span class="Normal">b</span>:foo<span class="Special"> <- </span>merge <span class="Constant">1</span>/y<span class="Delimiter">,</span> a
<span id="L178" class="LineNr">178 </span> <span class="Normal">c</span>:foo<span class="Special"> <- </span>deep-copy b
<span id="L179" class="LineNr">179 </span> <span class="Constant">10</span>:<span class="Normal">bool</span>/<span class="Special">raw <- </span>equal b<span class="Delimiter">,</span> c
<span id="L180" class="LineNr">180 </span> <span class="Normal">d</span>:bar<span class="Delimiter">,</span> z:<span class="Normal">bool</span><span class="Special"> <- </span>maybe-convert c<span class="Delimiter">,</span> <span class="Constant">y:variant</span>
<span id="L181" class="LineNr">181 </span> <span class="Normal">y1</span>:&:num<span class="Special"> <- </span>get d<span class="Delimiter">,</span> <span class="Constant">x:offset</span>
<span id="L182" class="LineNr">182 </span> <span class="Constant">11</span>:<span class="Normal">bool</span>/<span class="Special">raw <- </span>equal y0<span class="Delimiter">,</span> y1
<span id="L183" class="LineNr">183 </span> <span class="Constant">12</span>:num/<span class="Special">raw <- </span>copy *y1
<span id="L184" class="LineNr">184 </span>]
<span id="L185" class="LineNr">185 </span><span class="Comment"># exclusive containers containing addresses are not identical to their deep copies</span>
<span id="L186" class="LineNr">186 </span><span class="traceContains">+mem: storing 0 in location 10</span>
<span id="L187" class="LineNr">187 </span><span class="Comment"># sub-containers containing addresses are not identical either</span>
<span id="L188" class="LineNr">188 </span><span class="traceContains">+mem: storing 0 in location 11</span>
<span id="L189" class="LineNr">189 </span><span class="traceContains">+mem: storing 34 in location 12</span>
<span id="L190" class="LineNr">190 </span>
<span id="L191" class="LineNr">191 </span><span class="Delimiter">:(before "End Primitive Recipe Declarations")</span>
<span id="L192" class="LineNr">192 </span>DEEP_COPY<span class="Delimiter">,</span>
<span id="L193" class="LineNr">193 </span><span class="Delimiter">:(before "End Primitive Recipe Numbers")</span>
<span id="L194" class="LineNr">194 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> <span class="Constant">"deep-copy"</span><span class="Delimiter">,</span> DEEP_COPY<span class="Delimiter">);</span>
<span id="L195" class="LineNr">195 </span><span class="Delimiter">:(before "End Primitive Recipe Checks")</span>
<span id="L196" class="LineNr">196 </span><span class="Normal">case</span> DEEP_COPY: <span class="Delimiter">{</span>
<span id="L197" class="LineNr">197 </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="L198" class="LineNr">198 </span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> << <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> << <span class="Constant">"'deep-copy' takes exactly one ingredient rather than '"</span> << to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"'</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
<span id="L199" class="LineNr">199 </span> <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L200" class="LineNr">200 </span> <span class="Delimiter">}</span>
<span id="L201" class="LineNr">201 </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="L202" class="LineNr">202 </span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> << <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> << <span class="Constant">"'deep-copy' takes exactly one ingredient rather than '"</span> << to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"'</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
<span id="L203" class="LineNr">203 </span> <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L204" class="LineNr">204 </span> <span class="Delimiter">}</span>
<span id="L205" class="LineNr">205 </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="L206" class="LineNr">206 </span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> << <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> << <span class="Constant">"'deep-copy' requires its ingredient and product to be the same type, but got '"</span> << to_original_string<span class="Delimiter">(</span>inst<span class="Delimiter">)</span> << <span class="Constant">"'</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
<span id="L207" class="LineNr">207 </span> <span class="Conceal">¦</span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L208" class="LineNr">208 </span> <span class="Delimiter">}</span>
<span id="L209" class="LineNr">209 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L210" class="LineNr">210 </span><span class="Delimiter">}</span>
<span id="L211" class="LineNr">211 </span><span class="Delimiter">:(before "End Primitive Recipe Implementations")</span>
<span id="L212" class="LineNr">212 </span><span class="Normal">case</span> DEEP_COPY: <span class="Delimiter">{</span>
<span id="L213" class="LineNr">213 </span> <span class="Normal">const</span> reagent& input = <a href='026call.cc.html#L85'>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="L214" class="LineNr">214 </span> <span class="Comment">// allocate a tiny bit of temporary space for deep_copy()</span>
<span id="L215" class="LineNr">215 </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">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"deep-copy: allocating space for temporary"</span> << <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
<span id="L216" class="LineNr">216 </span> reagent tmp<span class="Delimiter">(</span><span class="Constant">"tmp:<a href='043space.cc.html#L76'>address</a>:number"</span><span class="Delimiter">);</span>
<span id="L217" class="LineNr">217 </span> tmp<span class="Delimiter">.</span><a href='010vm.cc.html#L65'>set_value</a><span class="Delimiter">(</span>allocate<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">));</span>
<span id="L218" class="LineNr">218 </span> products<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>deep_copy<span class="Delimiter">(</span>input<span class="Delimiter">,</span> tmp<span class="Delimiter">));</span>
<span id="L219" class="LineNr">219 </span> <span class="Comment">// reclaim Mu memory allocated for tmp</span>
<span id="L220" class="LineNr">220 </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">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"deep-copy: reclaiming temporary"</span> << <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
<span id="L221" class="LineNr">221 </span> <a href='037abandon.cc.html#L28'>abandon</a><span class="Delimiter">(</span>tmp<span class="Delimiter">.</span>value<span class="Delimiter">,</span> <a href='030container.cc.html#L238'>payload_type</a><span class="Delimiter">(</span>tmp<span class="Delimiter">.</span>type<span class="Delimiter">),</span> <a href='036refcount.cc.html#L92'>payload_size</a><span class="Delimiter">(</span>tmp<span class="Delimiter">));</span>
<span id="L222" class="LineNr">222 </span> <span class="Comment">// reclaim host memory allocated for tmp.type when tmp goes out of scope</span>
<span id="L223" class="LineNr">223 </span> <span class="Identifier">break</span><span class="Delimiter">;</span>
<span id="L224" class="LineNr">224 </span><span class="Delimiter">}</span>
<span id="L225" class="LineNr">225 </span>
<span id="L226" class="LineNr">226 </span><span class="Delimiter">:(code)</span>
<span id="L227" class="LineNr">227 </span>vector<<span class="Normal">double</span>> deep_copy<span class="Delimiter">(</span><span class="Normal">const</span> reagent& in<span class="Delimiter">,</span> <span class="Normal">const</span> reagent& tmp<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L228" class="LineNr">228 </span> map<<span class="Normal">int</span><span class="Delimiter">,</span> <span class="Normal">int</span>> addresses_copied<span class="Delimiter">;</span>
<span id="L229" class="LineNr">229 </span> <span class="Identifier">return</span> deep_copy<span class="Delimiter">(</span>in<span class="Delimiter">,</span> addresses_copied<span class="Delimiter">,</span> tmp<span class="Delimiter">);</span>
<span id="L230" class="LineNr">230 </span><span class="Delimiter">}</span>
<span id="L231" class="LineNr">231 </span>
<span id="L232" class="LineNr">232 </span>vector<<span class="Normal">double</span>> 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<<span class="Normal">int</span><span class="Delimiter">,</span> <span class="Normal">int</span>>& addresses_copied<span class="Delimiter">,</span> <span class="Normal">const</span> reagent& tmp<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L233" class="LineNr">233 </span> canonize<span class="Delimiter">(</span>in<span class="Delimiter">);</span>
<span id="L234" class="LineNr">234 </span> vector<<span class="Normal">double</span>> result<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 id="L236" class="LineNr">236 </span> <span class="Conceal">¦</span> result<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='074deep_copy.cc.html#L243'>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="L237" class="LineNr">237 </span> <span class="Normal">else</span>
<span id="L238" class="LineNr">238 </span> <span class="Conceal">¦</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="L239" class="LineNr">239 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span id="L240" class="LineNr">240 </span><span class="Delimiter">}</span>
<span id="L241" class="LineNr">241 </span>
<span id="L242" class="LineNr">242 </span><span class="Comment">// deep-copy an address and return a new address</span>
<span id="L243" class="LineNr">243 </span><span class="Normal">int</span> <a href='074deep_copy.cc.html#L243'>deep_copy_address</a><span class="Delimiter">(</span><span class="Normal">const</span> reagent& canonized_in<span class="Delimiter">,</span> map<<span class="Normal">int</span><span class="Delimiter">,</span> <span class="Normal">int</span>>& addresses_copied<span class="Delimiter">,</span> <span class="Normal">const</span> reagent& tmp<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L244" class="LineNr">244 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>canonized_in<span class="Delimiter">.</span>value == <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="L245" class="LineNr">245 </span> <span class="Normal">int</span> in_address = <a href='074deep_copy.cc.html#L298'>payload_address</a><span class="Delimiter">(</span>canonized_in<span class="Delimiter">);</span>
<span id="L246" class="LineNr">246 </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">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"deep-copy: copying <a href='043space.cc.html#L76'>address</a> "</span> << in_address << <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
<span id="L247" class="LineNr">247 </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="L248" class="LineNr">248 </span> <span class="Conceal">¦</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="L249" class="LineNr">249 </span> <span class="Conceal">¦</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">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"deep-copy: copy already exists: "</span> << out << <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
<span id="L250" class="LineNr">250 </span> <span class="Conceal">¦</span> <span class="Identifier">return</span> out<span class="Delimiter">;</span>
<span id="L251" class="LineNr">251 </span> <span class="Delimiter">}</span>
<span id="L252" class="LineNr">252 </span> <span class="Normal">int</span> out = allocate<span class="Delimiter">(</span><a href='036refcount.cc.html#L92'>payload_size</a><span class="Delimiter">(</span>canonized_in<span class="Delimiter">));</span>
<span id="L253" class="LineNr">253 </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">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"deep-copy: new <a href='043space.cc.html#L76'>address</a> is "</span> << out << <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
<span id="L254" class="LineNr">254 </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="L255" class="LineNr">255 </span> reagent<span class="Comment">/*</span><span class="Comment">copy</span><span class="Comment">*/</span> payload = canonized_in<span class="Delimiter">;</span>
<span id="L256" class="LineNr">256 </span> payload<span class="Delimiter">.</span>properties<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>pair<string<span class="Delimiter">,</span> string_tree*><span class="Delimiter">(</span><span class="Constant">"lookup"</span><span class="Delimiter">,</span> <span class="Constant">NULL</span><span class="Delimiter">));</span>
<span id="L257" class="LineNr">257 </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">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"recursing on payload "</span> << payload<span class="Delimiter">.</span>value << <span class="Constant">' '</span> << <a href='028call_return.cc.html#L158'>to_string</a><span class="Delimiter">(</span>payload<span class="Delimiter">)</span> << <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
<span id="L258" class="LineNr">258 </span> vector<<span class="Normal">double</span>> 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="L259" class="LineNr">259 </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">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"deep-copy: writing result "</span> << out << <span class="Constant">": "</span> << <a href='028call_return.cc.html#L158'>to_string</a><span class="Delimiter">(</span>data<span class="Delimiter">)</span> << <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
<span id="L260" class="LineNr">260 </span> <span class="Comment">// HACK: write_memory interface isn't ideal for this situation; we need</span>
<span id="L261" class="LineNr">261 </span> <span class="Comment">// a temporary location to help copy the payload.</span>
<span id="L262" class="LineNr">262 </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">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"deep-copy: writing temporary "</span> << tmp<span class="Delimiter">.</span>value << <span class="Constant">": "</span> << out << <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
<span id="L263" class="LineNr">263 </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="L264" class="LineNr">264 </span> payload<span class="Delimiter">.</span><a href='010vm.cc.html#L65'>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="L265" class="LineNr">265 </span> vector<<span class="Normal">double</span>> old_data = read_memory<span class="Delimiter">(</span>payload<span class="Delimiter">);</span>
<span id="L266" class="LineNr">266 </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">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"deep-copy: really writing to "</span> << payload<span class="Delimiter">.</span>value << <span class="Constant">' '</span> << <a href='028call_return.cc.html#L158'>to_string</a><span class="Delimiter">(</span>payload<span class="Delimiter">)</span> << <span class="Constant">" (old value "</span> << <a href='028call_return.cc.html#L158'>to_string</a><span class="Delimiter">(</span>old_data<span class="Delimiter">)</span> << <span class="Constant">" new value "</span> << <a href='028call_return.cc.html#L158'>to_string</a><span class="Delimiter">(</span>data<span class="Delimiter">)</span> << <span class="Constant">")"</span> << <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
<span id="L267" class="LineNr">267 </span> write_memory<span class="Delimiter">(</span>payload<span class="Delimiter">,</span> data<span class="Delimiter">);</span>
<span id="L268" class="LineNr">268 </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">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"deep-copy: output is "</span> << <a href='028call_return.cc.html#L158'>to_string</a><span class="Delimiter">(</span>data<span class="Delimiter">)</span> << <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
<span id="L269" class="LineNr">269 </span> <span class="Identifier">return</span> out<span class="Delimiter">;</span>
<span id="L270" class="LineNr">270 </span><span class="Delimiter">}</span>
<span id="L271" class="LineNr">271 </span>
<span id="L272" class="LineNr">272 </span><span class="Comment">// deep-copy a non-address and return a vector of locations</span>
<span id="L273" class="LineNr">273 </span><span class="Normal">void</span> deep_copy<span class="Delimiter">(</span><span class="Normal">const</span> reagent& canonized_in<span class="Delimiter">,</span> map<<span class="Normal">int</span><span class="Delimiter">,</span> <span class="Normal">int</span>>& addresses_copied<span class="Delimiter">,</span> <span class="Normal">const</span> reagent& tmp<span class="Delimiter">,</span> vector<<span class="Normal">double</span>>& out<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L274" class="LineNr">274 </span> assert<span class="Delimiter">(</span>!is_mu_address<span class="Delimiter">(</span>canonized_in<span class="Delimiter">));</span>
<span id="L275" class="LineNr">275 </span> vector<<span class="Normal">double</span>> data = read_memory<span class="Delimiter">(</span>canonized_in<span class="Delimiter">);</span>
<span id="L276" class="LineNr">276 </span> out<span class="Delimiter">.</span>insert<span class="Delimiter">(</span>out<span class="Delimiter">.</span><a href='003trace.cc.html#L197'>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#L197'>end</a><span class="Delimiter">());</span>
<span id="L277" class="LineNr">277 </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="L278" class="LineNr">278 </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">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"deep-copy: scanning for addresses in "</span> << <a href='028call_return.cc.html#L158'>to_string</a><span class="Delimiter">(</span>data<span class="Delimiter">)</span> << <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
<span id="L279" class="LineNr">279 </span> <span class="Normal">const</span> container_metadata& 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="L280" class="LineNr">280 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>map<set<tag_condition_info><span class="Delimiter">,</span> set<address_element_info> >::const_iterator p = metadata<span class="Delimiter">.</span><a href='043space.cc.html#L76'>address</a><span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != metadata<span class="Delimiter">.</span><a href='043space.cc.html#L76'>address</a><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="L281" class="LineNr">281 </span> <span class="Conceal">¦</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">-></span>first<span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
<span id="L282" class="LineNr">282 </span> <span class="Conceal">¦</span> <span class="Normal">for</span> <span class="Delimiter">(</span>set<address_element_info>::const_iterator info = p<span class="Delimiter">-></span>second<span class="Delimiter">.</span>begin<span class="Delimiter">();</span> info != p<span class="Delimiter">-></span>second<span class="Delimiter">.</span><a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span> ++info<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L283" class="LineNr">283 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Comment">// construct a fake reagent that reads directly from the appropriate</span>
<span id="L284" class="LineNr">284 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Comment">// field of the container</span>
<span id="L285" class="LineNr">285 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> reagent curr<span class="Delimiter">;</span>
<span id="L286" class="LineNr">286 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>info<span class="Delimiter">-></span><a href='030container.cc.html#L238'>payload_type</a><span class="Delimiter">-></span>atom<span class="Delimiter">)</span>
<span id="L287" class="LineNr">287 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</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">"address"</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">-></span><a href='030container.cc.html#L238'>payload_type</a><span class="Delimiter">-></span>name<span class="Delimiter">),</span> <span class="Constant">NULL</span><span class="Delimiter">));</span>
<span id="L288" class="LineNr">288 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">else</span>
<span id="L289" class="LineNr">289 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</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">"address"</span><span class="Delimiter">),</span> <span class="Normal">new</span> type_tree<span class="Delimiter">(</span>*info<span class="Delimiter">-></span><a href='030container.cc.html#L238'>payload_type</a><span class="Delimiter">));</span>
<span id="L290" class="LineNr">290 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> curr<span class="Delimiter">.</span><a href='010vm.cc.html#L65'>set_value</a><span class="Delimiter">(</span>canonized_in<span class="Delimiter">.</span>value + info<span class="Delimiter">-></span>offset<span class="Delimiter">);</span>
<span id="L291" class="LineNr">291 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> curr<span class="Delimiter">.</span>properties<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>pair<string<span class="Delimiter">,</span> string_tree*><span class="Delimiter">(</span><span class="Constant">"raw"</span><span class="Delimiter">,</span> <span class="Constant">NULL</span><span class="Delimiter">));</span>
<span id="L292" class="LineNr">292 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</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">"run"</span><span class="Delimiter">)</span> << <span class="Constant">"deep-copy: copying <a href='043space.cc.html#L76'>address</a> "</span> << curr<span class="Delimiter">.</span>value << <a href='003trace.cc.html#L197'>end</a><span class="Delimiter">();</span>
<span id="L293" class="LineNr">293 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> out<span class="Delimiter">.</span>at<span class="Delimiter">(</span>info<span class="Delimiter">-></span>offset<span class="Delimiter">)</span> = <a href='074deep_copy.cc.html#L243'>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="L294" class="LineNr">294 </span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
<span id="L295" class="LineNr">295 </span> <span class="Delimiter">}</span>
<span id="L296" class="LineNr">296 </span><span class="Delimiter">}</span>
<span id="L297" class="LineNr">297 </span>
<span id="L298" class="LineNr">298 </span><span class="Normal">int</span> <a href='074deep_copy.cc.html#L298'>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="L299" class="LineNr">299 </span> x<span class="Delimiter">.</span>properties<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>pair<string<span class="Delimiter">,</span> string_tree*><span class="Delimiter">(</span><span class="Constant">"lookup"</span><span class="Delimiter">,</span> <span class="Constant">NULL</span><span class="Delimiter">));</span>
<span id="L300" class="LineNr">300 </span> canonize<span class="Delimiter">(</span>x<span class="Delimiter">);</span>
<span id="L301" class="LineNr">301 </span> <span class="Identifier">return</span> x<span class="Delimiter">.</span>value<span class="Delimiter">;</span>
<span id="L302" class="LineNr">302 </span><span class="Delimiter">}</span>
<span id="L303" class="LineNr">303 </span>
<span id="L304" class="LineNr">304 </span><span class="Comment">//: moar tests, just because I can't believe it all works</span>
<span id="L305" class="LineNr">305 </span>
<span id="L306" class="LineNr">306 </span><span class="Delimiter">:(scenario deep_copy_stress_test_1)</span>
<span id="L307" class="LineNr">307 </span><span class="muData">container</span> foo1 [
<span id="L308" class="LineNr">308 </span> <span class="Normal">p</span>:&:num
<span id="L309" class="LineNr">309 </span>]
<span id="L310" class="LineNr">310 </span><span class="muData">container</span> foo2 [
<span id="L311" class="LineNr">311 </span> <span class="Normal">p</span>:&:foo1
<span id="L312" class="LineNr">312 </span>]
<span id="L313" class="LineNr">313 </span><span class="muData">exclusive-container</span> foo3 [
<span id="L314" class="LineNr">314 </span> <span class="Normal">p</span>:&:foo1
<span id="L315" class="LineNr">315 </span> <span class="Normal">q</span>:&:foo2
<span id="L316" class="LineNr">316 </span>]
<span id="L317" class="LineNr">317 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L318" class="LineNr">318 </span> local-scope
<span id="L319" class="LineNr">319 </span> <span class="Normal">x</span>:&:num<span class="Special"> <- </span><span class="Normal">new</span> <span class="Constant">number:type</span>
<span id="L320" class="LineNr">320 </span> *x<span class="Special"> <- </span>copy <span class="Constant">34</span>
<span id="L321" class="LineNr">321 </span> <span class="Normal">a</span>:&:foo1<span class="Special"> <- </span><span class="Normal">new</span> <span class="Constant">foo1:type</span>
<span id="L322" class="LineNr">322 </span> *a<span class="Special"> <- </span>merge x
<span id="L323" class="LineNr">323 </span> <span class="Normal">b</span>:&:foo2<span class="Special"> <- </span><span class="Normal">new</span> <span class="Constant">foo2:type</span>
<span id="L324" class="LineNr">324 </span> *b<span class="Special"> <- </span>merge a
<span id="L325" class="LineNr">325 </span> <span class="Normal">c</span>:foo3<span class="Special"> <- </span>merge <span class="Constant">1</span>/q<span class="Delimiter">,</span> b
<span id="L326" class="LineNr">326 </span> <span class="Normal">d</span>:foo3<span class="Special"> <- </span>deep-copy c
<span id="L327" class="LineNr">327 </span> <span class="Normal">e</span>:&:foo2<span class="Delimiter">,</span> z:<span class="Normal">bool</span><span class="Special"> <- </span>maybe-convert d<span class="Delimiter">,</span> <span class="Constant">q:variant</span>
<span id="L328" class="LineNr">328 </span> <span class="Normal">f</span>:&:foo1<span class="Special"> <- </span>get *e<span class="Delimiter">,</span> <span class="Constant">p:offset</span>
<span id="L329" class="LineNr">329 </span> <span class="Normal">g</span>:&:num<span class="Special"> <- </span>get *f<span class="Delimiter">,</span> <span class="Constant">p:offset</span>
<span id="L330" class="LineNr">330 </span> <span class="Constant">1</span>:num/<span class="Special">raw <- </span>copy *g
<span id="L331" class="LineNr">331 </span>]
<span id="L332" class="LineNr">332 </span><span class="traceContains">+mem: storing 34 in location 1</span>
<span id="L333" class="LineNr">333 </span>
<span id="L334" class="LineNr">334 </span><span class="Delimiter">:(scenario deep_copy_stress_test_2)</span>
<span id="L335" class="LineNr">335 </span><span class="muData">container</span> foo1 [
<span id="L336" class="LineNr">336 </span> <span class="Normal">p</span>:&:num
<span id="L337" class="LineNr">337 </span>]
<span id="L338" class="LineNr">338 </span><span class="muData">container</span> foo2 [
<span id="L339" class="LineNr">339 </span> <span class="Normal">p</span>:&:foo1
<span id="L340" class="LineNr">340 </span>]
<span id="L341" class="LineNr">341 </span><span class="muData">exclusive-container</span> foo3 [
<span id="L342" class="LineNr">342 </span> <span class="Normal">p</span>:&:foo1
<span id="L343" class="LineNr">343 </span> <span class="Normal">q</span>:&:foo2
<span id="L344" class="LineNr">344 </span>]
<span id="L345" class="LineNr">345 </span><span class="muData">container</span> foo4 [
<span id="L346" class="LineNr">346 </span> <span class="Normal">p</span>:num
<span id="L347" class="LineNr">347 </span> <span class="Normal">q</span>:&:foo3
<span id="L348" class="LineNr">348 </span>]
<span id="L349" class="LineNr">349 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L350" class="LineNr">350 </span> local-scope
<span id="L351" class="LineNr">351 </span> <span class="Normal">x</span>:&:num<span class="Special"> <- </span><span class="Normal">new</span> <span class="Constant">number:type</span>
<span id="L352" class="LineNr">352 </span> *x<span class="Special"> <- </span>copy <span class="Constant">34</span>
<span id="L353" class="LineNr">353 </span> <span class="Normal">a</span>:&:foo1<span class="Special"> <- </span><span class="Normal">new</span> <span class="Constant">foo1:type</span>
<span id="L354" class="LineNr">354 </span> *a<span class="Special"> <- </span>merge x
<span id="L355" class="LineNr">355 </span> <span class="Normal">b</span>:&:foo2<span class="Special"> <- </span><span class="Normal">new</span> <span class="Constant">foo2:type</span>
<span id="L356" class="LineNr">356 </span> *b<span class="Special"> <- </span>merge a
<span id="L357" class="LineNr">357 </span> <span class="Normal">c</span>:&:foo3<span class="Special"> <- </span><span class="Normal">new</span> <span class="Constant">foo3:type</span>
<span id="L358" class="LineNr">358 </span> *c<span class="Special"> <- </span>merge <span class="Constant">1</span>/q<span class="Delimiter">,</span> b
<span id="L359" class="LineNr">359 </span> <span class="Normal">d</span>:foo4<span class="Special"> <- </span>merge <span class="Constant">35</span><span class="Delimiter">,</span> c
<span id="L360" class="LineNr">360 </span> <span class="Normal">e</span>:foo4<span class="Special"> <- </span>deep-copy d
<span id="L361" class="LineNr">361 </span> <span class="Normal">f</span>:&:foo3<span class="Special"> <- </span>get e<span class="Delimiter">,</span> <span class="Constant">q:offset</span>
<span id="L362" class="LineNr">362 </span> <span class="Normal">g</span>:&:foo2<span class="Delimiter">,</span> z:<span class="Normal">bool</span><span class="Special"> <- </span>maybe-convert *f<span class="Delimiter">,</span> <span class="Constant">q:variant</span>
<span id="L363" class="LineNr">363 </span> <span class="Normal">h</span>:&:foo1<span class="Special"> <- </span>get *g<span class="Delimiter">,</span> <span class="Constant">p:offset</span>
<span id="L364" class="LineNr">364 </span> <span class="Normal">y</span>:&:num<span class="Special"> <- </span>get *h<span class="Delimiter">,</span> <span class="Constant">p:offset</span>
<span id="L365" class="LineNr">365 </span> <span class="Constant">1</span>:num/<span class="Special">raw <- </span>copy *y
<span id="L366" class="LineNr">366 </span>]
<span id="L367" class="LineNr">367 </span><span class="traceContains">+mem: storing 34 in location 1</span>
<span id="L368" class="LineNr">368 </span>
<span id="L369" class="LineNr">369 </span><span class="Delimiter">:(scenario deep_copy_cycles)</span>
<span id="L370" class="LineNr">370 </span><span class="muData">container</span> foo [
<span id="L371" class="LineNr">371 </span> <span class="Normal">p</span>:num
<span id="L372" class="LineNr">372 </span> <span class="Normal">q</span>:&:foo
<span id="L373" class="LineNr">373 </span>]
<span id="L374" class="LineNr">374 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L375" class="LineNr">375 </span> local-scope
<span id="L376" class="LineNr">376 </span> <span class="Normal">x</span>:&:foo<span class="Special"> <- </span><span class="Normal">new</span> <span class="Constant">foo:type</span>
<span id="L377" class="LineNr">377 </span> *x<span class="Special"> <- </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="L378" class="LineNr">378 </span> *x<span class="Special"> <- </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="L379" class="LineNr">379 </span> <span class="Normal">y</span>:&:foo<span class="Special"> <- </span>deep-copy x
<span id="L380" class="LineNr">380 </span> <span class="Constant">1</span>:num/<span class="Special">raw <- </span>get *y<span class="Delimiter">,</span> <span class="Constant">p:offset</span>
<span id="L381" class="LineNr">381 </span> <span class="Normal">y2</span>:&:foo<span class="Special"> <- </span>get *y<span class="Delimiter">,</span> <span class="Constant">q:offset</span>
<span id="L382" class="LineNr">382 </span> stash y [vs] y2
<span id="L383" class="LineNr">383 </span> <span class="Constant">2</span>:<span class="Normal">bool</span>/<span class="Special">raw <- </span>equal y<span class="Delimiter">,</span> y2 <span class="Comment"># is it still a cycle?</span>
<span id="L384" class="LineNr">384 </span> <span class="Constant">3</span>:<span class="Normal">bool</span>/<span class="Special">raw <- </span>equal x<span class="Delimiter">,</span> y <span class="Comment"># is it the same cycle?</span>
<span id="L385" class="LineNr">385 </span>]
<span id="L386" class="LineNr">386 </span><span class="traceContains">+mem: storing 34 in location 1</span>
<span id="L387" class="LineNr">387 </span><span class="Comment"># deep copy also contains a cycle</span>
<span id="L388" class="LineNr">388 </span><span class="traceContains">+mem: storing 1 in location 2</span>
<span id="L389" class="LineNr">389 </span><span class="Comment"># but it's a completely different (disjoint) cycle</span>
<span id="L390" class="LineNr">390 </span><span class="traceContains">+mem: storing 0 in location 3</span>
</pre>
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