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<span id="L1" class="LineNr"> 1 </span><span class="Comment">//: Spaces help isolate recipes from each other. You can create them at will,</span>
<span id="L2" class="LineNr"> 2 </span><span class="Comment">//: and all addresses in arguments are implicitly based on the 'default-space'</span>
<span id="L3" class="LineNr"> 3 </span><span class="Comment">//: (unless they have the /raw property)</span>
<span id="L4" class="LineNr"> 4 </span>
<span id="L5" class="LineNr"> 5 </span><span class="Comment">//: A space is just an array of any scalar location.</span>
<span id="L6" class="LineNr"> 6 </span><span class="Delimiter">:(before "End Mu Types Initialization")</span>
<span id="L7" class="LineNr"> 7 </span><a href='001help.cc.html#L218'>put</a><span class="Delimiter">(</span>Type_abbreviations<span class="Delimiter">,</span> <span class="Constant">"space"</span><span class="Delimiter">,</span> <a href='018type_abbreviations.cc.html#L58'>new_type_tree</a><span class="Delimiter">(</span><span class="Constant">"address:array:location"</span><span class="Delimiter">));</span>
<span id="L8" class="LineNr"> 8 </span><span class="Comment">//: Spaces are often called 'scopes' in other languages.</span>
<span id="L9" class="LineNr"> 9 </span><a href='001help.cc.html#L218'>put</a><span class="Delimiter">(</span>Type_abbreviations<span class="Delimiter">,</span> <span class="Constant">"scope"</span><span class="Delimiter">,</span> <a href='018type_abbreviations.cc.html#L58'>new_type_tree</a><span class="Delimiter">(</span><span class="Constant">"address:array:location"</span><span class="Delimiter">));</span>
<span id="L10" class="LineNr"> 10 </span>
<span id="L11" class="LineNr"> 11 </span><span class="Delimiter">:(scenario set_default_space)</span>
<span id="L12" class="LineNr"> 12 </span><span class="Comment"># if default-space is 10, and if an array of 5 locals lies from location 12 to 16 (inclusive),</span>
<span id="L13" class="LineNr"> 13 </span><span class="Comment"># then local 0 is really location 12, local 1 is really location 13, and so on.</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> <span class="Comment"># pretend address:array:location; in practice we'll use new</span>
<span id="L16" class="LineNr"> 16 </span> <span class="Constant">10</span>:num<span class="Special"> <- </span>copy <span class="Constant">0</span> <span class="Comment"># refcount</span>
<span id="L17" class="LineNr"> 17 </span> <span class="Constant">11</span>:num<span class="Special"> <- </span>copy <span class="Constant">5</span> <span class="Comment"># length</span>
<span id="L18" class="LineNr"> 18 </span> <span class="Normal">default</span>-space:space<span class="Special"> <- </span>copy <span class="Constant">10</span>/unsafe
<span id="L19" class="LineNr"> 19 </span> <span class="Constant">1</span>:num<span class="Special"> <- </span>copy <span class="Constant">23</span>
<span id="L20" class="LineNr"> 20 </span>]
<span id="L21" class="LineNr"> 21 </span><span class="traceContains">+mem: storing 23 in location 13</span>
<span id="L22" class="LineNr"> 22 </span>
<span id="L23" class="LineNr"> 23 </span><span class="Delimiter">:(scenario lookup_sidesteps_default_space)</span>
<span id="L24" class="LineNr"> 24 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L25" class="LineNr"> 25 </span> <span class="Comment"># pretend pointer from outside (2000 reserved for refcount)</span>
<span id="L26" class="LineNr"> 26 </span> <span class="Constant">2001</span>:num<span class="Special"> <- </span>copy <span class="Constant">34</span>
<span id="L27" class="LineNr"> 27 </span> <span class="Comment"># pretend address:array:location; in practice we'll use new</span>
<span id="L28" class="LineNr"> 28 </span> <span class="Constant">1000</span>:num<span class="Special"> <- </span>copy <span class="Constant">0</span> <span class="Comment"># refcount</span>
<span id="L29" class="LineNr"> 29 </span> <span class="Constant">1001</span>:num<span class="Special"> <- </span>copy <span class="Constant">5</span> <span class="Comment"># length</span>
<span id="L30" class="LineNr"> 30 </span> <span class="Comment"># actual start of this recipe</span>
<span id="L31" class="LineNr"> 31 </span> <span class="Normal">default</span>-space:space<span class="Special"> <- </span>copy <span class="Constant">1000</span>/unsafe
<span id="L32" class="LineNr"> 32 </span> <span class="Constant">1</span>:&:num<span class="Special"> <- </span>copy <span class="Constant">2000</span>/unsafe <span class="Comment"># even local variables always contain raw addresses</span>
<span id="L33" class="LineNr"> 33 </span> <span class="Constant">8</span>:num/<span class="Special">raw <- </span>copy *<span class="Constant">1</span>:&:num
<span id="L34" class="LineNr"> 34 </span>]
<span id="L35" class="LineNr"> 35 </span><span class="traceContains">+mem: storing 34 in location 8</span>
<span id="L36" class="LineNr"> 36 </span>
<span id="L37" class="LineNr"> 37 </span><span class="SalientComment">//:: first disable name conversion for 'default-space'</span>
<span id="L38" class="LineNr"> 38 </span><span class="Delimiter">:(scenario convert_names_passes_default_space)</span>
<span id="L39" class="LineNr"> 39 </span><span class="Special">% Hide_errors = true;</span>
<span id="L40" class="LineNr"> 40 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L41" class="LineNr"> 41 </span> <span class="Normal">default</span>-space:num<span class="Delimiter">,</span> x:num<span class="Special"> <- </span>copy <span class="Constant">0</span><span class="Delimiter">,</span> <span class="Constant">1</span>
<span id="L42" class="LineNr"> 42 </span>]
<span id="L43" class="LineNr"> 43 </span><span class="traceContains">+name: assign x 1</span>
<span id="L44" class="LineNr"> 44 </span><span class="traceAbsent">-name: assign default-space 1</span>
<span id="L45" class="LineNr"> 45 </span>
<span id="L46" class="LineNr"> 46 </span><span class="Delimiter">:(before "End <a href='042name.cc.html#L99'>is_disqualified</a> Special-cases")</span>
<span id="L47" class="LineNr"> 47 </span><span class="Normal">if</span> <span class="Delimiter">(</span>x<span class="Delimiter">.</span>name == <span class="Constant">"default-space"</span><span class="Delimiter">)</span>
<span id="L48" class="LineNr"> 48 </span> x<span class="Delimiter">.</span>initialized = <span class="Constant">true</span><span class="Delimiter">;</span>
<span id="L49" class="LineNr"> 49 </span><span class="Delimiter">:(before "End <a href='042name.cc.html#L156'>is_special_name</a> Special-cases")</span>
<span id="L50" class="LineNr"> 50 </span><span class="Normal">if</span> <span class="Delimiter">(</span>s == <span class="Constant">"default-space"</span><span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
<span id="L51" class="LineNr"> 51 </span>
<span id="L52" class="LineNr"> 52 </span><span class="SalientComment">//:: now implement space support</span>
<span id="L53" class="LineNr"> 53 </span><span class="Delimiter">:(before "End call Fields")</span>
<span id="L54" class="LineNr"> 54 </span><span class="Normal">int</span> default_space<span class="Delimiter">;</span>
<span id="L55" class="LineNr"> 55 </span><span class="Delimiter">:(before "End call Constructor")</span>
<span id="L56" class="LineNr"> 56 </span>default_space = <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L57" class="LineNr"> 57 </span>
<span id="L58" class="LineNr"> 58 </span><span class="Delimiter">:(before "End canonize(x) Special-cases")</span>
<span id="L59" class="LineNr"> 59 </span><a href='043space.cc.html#L61'>absolutize</a><span class="Delimiter">(</span>x<span class="Delimiter">);</span>
<span id="L60" class="LineNr"> 60 </span><span class="Delimiter">:(code)</span>
<span id="L61" class="LineNr"> 61 </span><span class="Normal">void</span> <a href='043space.cc.html#L61'>absolutize</a><span class="Delimiter">(</span>reagent& x<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L62" class="LineNr"> 62 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='022arithmetic.cc.html#L108'>is_raw</a><span class="Delimiter">(</span>x<span class="Delimiter">)</span> || is_dummy<span class="Delimiter">(</span>x<span class="Delimiter">))</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
<span id="L63" class="LineNr"> 63 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>x<span class="Delimiter">.</span>name == <span class="Constant">"default-space"</span><span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
<span id="L64" class="LineNr"> 64 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!x<span class="Delimiter">.</span>initialized<span class="Delimiter">)</span>
<span id="L65" class="LineNr"> 65 </span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> << to_original_string<span class="Delimiter">(</span>current_instruction<span class="Delimiter">())</span> << <span class="Constant">": reagent not initialized: '"</span> << x<span class="Delimiter">.</span>original_string << <span class="Constant">"'</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
<span id="L66" class="LineNr"> 66 </span> x<span class="Delimiter">.</span><a href='010vm.cc.html#L65'>set_value</a><span class="Delimiter">(</span><a href='043space.cc.html#L76'>address</a><span class="Delimiter">(</span>x<span class="Delimiter">.</span>value<span class="Delimiter">,</span> space_base<span class="Delimiter">(</span>x<span class="Delimiter">)));</span>
<span id="L67" class="LineNr"> 67 </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">"raw"</span><span class="Delimiter">,</span> <span class="Constant">NULL</span><span class="Delimiter">));</span>
<span id="L68" class="LineNr"> 68 </span> assert<span class="Delimiter">(</span><a href='022arithmetic.cc.html#L108'>is_raw</a><span class="Delimiter">(</span>x<span class="Delimiter">));</span>
<span id="L69" class="LineNr"> 69 </span><span class="Delimiter">}</span>
<span id="L70" class="LineNr"> 70 </span>
<span id="L71" class="LineNr"> 71 </span><span class="Comment">//: hook replaced in a later layer</span>
<span id="L72" class="LineNr"> 72 </span><span class="Normal">int</span> space_base<span class="Delimiter">(</span><span class="Normal">const</span> reagent& x<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L73" class="LineNr"> 73 </span> <span class="Identifier">return</span> current_call<span class="Delimiter">().</span>default_space ? <span class="Delimiter">(</span>current_call<span class="Delimiter">().</span>default_space+<span class="Comment">/*</span><span class="Comment">skip refcount</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">)</span> : <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L74" class="LineNr"> 74 </span><span class="Delimiter">}</span>
<span id="L75" class="LineNr"> 75 </span>
<span id="L76" class="LineNr"> 76 </span><span class="Normal">int</span> <a href='043space.cc.html#L76'>address</a><span class="Delimiter">(</span><span class="Normal">int</span> offset<span class="Delimiter">,</span> <span class="Normal">int</span> base<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L77" class="LineNr"> 77 </span> assert<span class="Delimiter">(</span>offset >= <span class="Constant">0</span><span class="Delimiter">);</span>
<span id="L78" class="LineNr"> 78 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>base == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Identifier">return</span> offset<span class="Delimiter">;</span> <span class="Comment">// raw</span>
<span id="L79" class="LineNr"> 79 </span> <span class="Normal">int</span> size = <a href='001help.cc.html#L225'>get_or_insert</a><span class="Delimiter">(</span>Memory<span class="Delimiter">,</span> base<span class="Delimiter">);</span>
<span id="L80" class="LineNr"> 80 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>offset >= size<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L81" class="LineNr"> 81 </span> <span class="Conceal">¦</span> <span class="Comment">// todo: test</span>
<span id="L82" class="LineNr"> 82 </span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> << <span class="Constant">"location "</span> << offset << <span class="Constant">" is out of bounds "</span> << size << <span class="Constant">" at "</span> << base << <span class="cSpecial">'\n'</span> << <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
<span id="L83" class="LineNr"> 83 </span> <span class="Conceal">¦</span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L84" class="LineNr"> 84 </span> <span class="Delimiter">}</span>
<span id="L85" class="LineNr"> 85 </span> <span class="Identifier">return</span> base + <span class="Comment">/*</span><span class="Comment">skip length</span><span class="Comment">*/</span><span class="Constant">1</span> + offset<span class="Delimiter">;</span>
<span id="L86" class="LineNr"> 86 </span><span class="Delimiter">}</span>
<span id="L87" class="LineNr"> 87 </span>
<span id="L88" class="LineNr"> 88 </span><span class="SalientComment">//:: reads and writes to the 'default-space' variable have special behavior</span>
<span id="L89" class="LineNr"> 89 </span>
<span id="L90" class="LineNr"> 90 </span><span class="Delimiter">:(after "Begin Preprocess write_memory(x, data)")</span>
<span id="L91" class="LineNr"> 91 </span><span class="Normal">if</span> <span class="Delimiter">(</span>x<span class="Delimiter">.</span>name == <span class="Constant">"default-space"</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L92" class="LineNr"> 92 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!scalar<span class="Delimiter">(</span>data<span class="Delimiter">)</span> || !is_space<span class="Delimiter">(</span>x<span class="Delimiter">))</span>
<span id="L93" class="LineNr"> 93 </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>current_recipe_name<span class="Delimiter">())</span> << <span class="Constant">"'default-space' should be of type <a href='043space.cc.html#L76'>address</a>:array:location, but is "</span> << <a href='028call_return.cc.html#L158'>to_string</a><span class="Delimiter">(</span>x<span class="Delimiter">.</span>type<span class="Delimiter">)</span> << <span class="cSpecial">'\n'</span> << <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
<span id="L94" class="LineNr"> 94 </span> current_call<span class="Delimiter">().</span>default_space = data<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
<span id="L95" class="LineNr"> 95 </span> <span class="Identifier">return</span><span class="Delimiter">;</span>
<span id="L96" class="LineNr"> 96 </span><span class="Delimiter">}</span>
<span id="L97" class="LineNr"> 97 </span><span class="Delimiter">:(code)</span>
<span id="L98" class="LineNr"> 98 </span><span class="Normal">bool</span> <a href='043space.cc.html#L98'>is_space</a><span class="Delimiter">(</span><span class="Normal">const</span> reagent& r<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L99" class="LineNr"> 99 </span> <span class="Identifier">return</span> <a href='039location_array.cc.html#L15'>is_address_of_array_of_numbers</a><span class="Delimiter">(</span>r<span class="Delimiter">);</span>
<span id="L100" class="LineNr">100 </span><span class="Delimiter">}</span>
<span id="L101" class="LineNr">101 </span>
<span id="L102" class="LineNr">102 </span><span class="Delimiter">:(scenario get_default_space)</span>
<span id="L103" class="LineNr">103 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L104" class="LineNr">104 </span> <span class="Normal">default</span>-space:space<span class="Special"> <- </span>copy <span class="Constant">10</span>/unsafe
<span id="L105" class="LineNr">105 </span> <span class="Constant">1</span>:space/<span class="Special">raw <- </span>copy <span class="Normal">default</span>-space:space
<span id="L106" class="LineNr">106 </span>]
<span id="L107" class="LineNr">107 </span><span class="traceContains">+mem: storing 10 in location 1</span>
<span id="L108" class="LineNr">108 </span>
<span id="L109" class="LineNr">109 </span><span class="Delimiter">:(after "Begin Preprocess read_memory(x)")</span>
<span id="L110" class="LineNr">110 </span><span class="Normal">if</span> <span class="Delimiter">(</span>x<span class="Delimiter">.</span>name == <span class="Constant">"default-space"</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L111" class="LineNr">111 </span> vector<<span class="Normal">double</span>> result<span class="Delimiter">;</span>
<span id="L112" class="LineNr">112 </span> result<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>current_call<span class="Delimiter">().</span>default_space<span class="Delimiter">);</span>
<span id="L113" class="LineNr">113 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span id="L114" class="LineNr">114 </span><span class="Delimiter">}</span>
<span id="L115" class="LineNr">115 </span>
<span id="L116" class="LineNr">116 </span><span class="SalientComment">//:: fix 'get'</span>
<span id="L117" class="LineNr">117 </span>
<span id="L118" class="LineNr">118 </span><span class="Delimiter">:(scenario lookup_sidesteps_default_space_in_get)</span>
<span id="L119" class="LineNr">119 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L120" class="LineNr">120 </span> <span class="Comment"># pretend pointer to container from outside (2000 reserved for refcount)</span>
<span id="L121" class="LineNr">121 </span> <span class="Constant">2001</span>:num<span class="Special"> <- </span>copy <span class="Constant">34</span>
<span id="L122" class="LineNr">122 </span> <span class="Constant">2002</span>:num<span class="Special"> <- </span>copy <span class="Constant">35</span>
<span id="L123" class="LineNr">123 </span> <span class="Comment"># pretend address:array:location; in practice we'll use new</span>
<span id="L124" class="LineNr">124 </span> <span class="Constant">1000</span>:num<span class="Special"> <- </span>copy <span class="Constant">0</span> <span class="Comment"># refcount</span>
<span id="L125" class="LineNr">125 </span> <span class="Constant">1001</span>:num<span class="Special"> <- </span>copy <span class="Constant">5</span> <span class="Comment"># length</span>
<span id="L126" class="LineNr">126 </span> <span class="Comment"># actual start of this recipe</span>
<span id="L127" class="LineNr">127 </span> <span class="Normal">default</span>-space:space<span class="Special"> <- </span>copy <span class="Constant">1000</span>/unsafe
<span id="L128" class="LineNr">128 </span> <span class="Constant">1</span>:&:point<span class="Special"> <- </span>copy <span class="Constant">2000</span>/unsafe
<span id="L129" class="LineNr">129 </span> <span class="Constant">9</span>:num/<span class="Special">raw <- </span>get *<span class="Constant">1</span>:&:point<span class="Delimiter">,</span> <span class="Constant">1:offset</span>
<span id="L130" class="LineNr">130 </span>]
<span id="L131" class="LineNr">131 </span><span class="traceContains">+mem: storing 35 in location 9</span>
<span id="L132" class="LineNr">132 </span>
<span id="L133" class="LineNr">133 </span><span class="Delimiter">:(before "Read element" following "case GET:")</span>
<span id="L134" class="LineNr">134 </span>element<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="L135" class="LineNr">135 </span>
<span id="L136" class="LineNr">136 </span><span class="SalientComment">//:: fix 'index'</span>
<span id="L137" class="LineNr">137 </span>
<span id="L138" class="LineNr">138 </span><span class="Delimiter">:(scenario lookup_sidesteps_default_space_in_index)</span>
<span id="L139" class="LineNr">139 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L140" class="LineNr">140 </span> <span class="Comment"># pretend pointer to array from outside (2000 reserved for refcount)</span>
<span id="L141" class="LineNr">141 </span> <span class="Constant">2001</span>:num<span class="Special"> <- </span>copy <span class="Constant">2</span> <span class="Comment"># length</span>
<span id="L142" class="LineNr">142 </span> <span class="Constant">2002</span>:num<span class="Special"> <- </span>copy <span class="Constant">34</span>
<span id="L143" class="LineNr">143 </span> <span class="Constant">2003</span>:num<span class="Special"> <- </span>copy <span class="Constant">35</span>
<span id="L144" class="LineNr">144 </span> <span class="Comment"># pretend address:array:location; in practice we'll use new</span>
<span id="L145" class="LineNr">145 </span> <span class="Constant">1000</span>:num<span class="Special"> <- </span>copy <span class="Constant">0</span> <span class="Comment"># refcount</span>
<span id="L146" class="LineNr">146 </span> <span class="Constant">1001</span>:num<span class="Special"> <- </span>copy <span class="Constant">5</span> <span class="Comment"># length</span>
<span id="L147" class="LineNr">147 </span> <span class="Comment"># actual start of this recipe</span>
<span id="L148" class="LineNr">148 </span> <span class="Normal">default</span>-space:space<span class="Special"> <- </span>copy <span class="Constant">1000</span>/unsafe
<span id="L149" class="LineNr">149 </span> <span class="Constant">1</span>:&:@:num<span class="Special"> <- </span>copy <span class="Constant">2000</span>/unsafe
<span id="L150" class="LineNr">150 </span> <span class="Constant">9</span>:num/<span class="Special">raw <- </span>index *<span class="Constant">1</span>:&:@:num<span class="Delimiter">,</span> <span class="Constant">1</span>
<span id="L151" class="LineNr">151 </span>]
<span id="L152" class="LineNr">152 </span><span class="traceContains">+mem: storing 35 in location 9</span>
<span id="L153" class="LineNr">153 </span>
<span id="L154" class="LineNr">154 </span><span class="Delimiter">:(before "Read element" following "case INDEX:")</span>
<span id="L155" class="LineNr">155 </span>element<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="L156" class="LineNr">156 </span>
<span id="L157" class="LineNr">157 </span><span class="SalientComment">//:: convenience operation to automatically deduce the amount of space to</span>
<span id="L158" class="LineNr">158 </span><span class="SalientComment">//:: allocate in a default space with names</span>
<span id="L159" class="LineNr">159 </span>
<span id="L160" class="LineNr">160 </span><span class="Delimiter">:(scenario new_default_space)</span>
<span id="L161" class="LineNr">161 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L162" class="LineNr">162 </span> <span class="Normal">new</span>-<span class="Normal">default</span>-space
<span id="L163" class="LineNr">163 </span> <span class="Normal">x</span>:num<span class="Special"> <- </span>copy <span class="Constant">0</span>
<span id="L164" class="LineNr">164 </span> <span class="Normal">y</span>:num<span class="Special"> <- </span>copy <span class="Constant">3</span>
<span id="L165" class="LineNr">165 </span>]
<span id="L166" class="LineNr">166 </span><span class="Comment"># allocate space for x and y, as well as the chaining slot at 0</span>
<span id="L167" class="LineNr">167 </span><span class="traceContains">+mem: array length is 3</span>
<span id="L168" class="LineNr">168 </span>
<span id="L169" class="LineNr">169 </span><span class="Delimiter">:(before "End <a href='042name.cc.html#L99'>is_disqualified</a> Special-cases")</span>
<span id="L170" class="LineNr">170 </span><span class="Normal">if</span> <span class="Delimiter">(</span>x<span class="Delimiter">.</span>name == <span class="Constant">"number-of-locals"</span><span class="Delimiter">)</span>
<span id="L171" class="LineNr">171 </span> x<span class="Delimiter">.</span>initialized = <span class="Constant">true</span><span class="Delimiter">;</span>
<span id="L172" class="LineNr">172 </span><span class="Delimiter">:(before "End <a href='042name.cc.html#L156'>is_special_name</a> Special-cases")</span>
<span id="L173" class="LineNr">173 </span><span class="Normal">if</span> <span class="Delimiter">(</span>s == <span class="Constant">"number-of-locals"</span><span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
<span id="L174" class="LineNr">174 </span>
<span id="L175" class="LineNr">175 </span><span class="Delimiter">:(before "End Rewrite Instruction(curr, <a href='010vm.cc.html#L19'>recipe</a> result)")</span>
<span id="L176" class="LineNr">176 </span><span class="Comment">// rewrite `new-default-space` to</span>
<span id="L177" class="LineNr">177 </span><span class="Comment">// `default-space:space <- new location:type, number-of-locals:literal`</span>
<span id="L178" class="LineNr">178 </span><span class="Comment">// where N is Name[recipe][""]</span>
<span id="L179" class="LineNr">179 </span><span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">.</span>name == <span class="Constant">"new-default-space"</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L180" class="LineNr">180 </span> <a href='043space.cc.html#L312'>rewrite_default_space_instruction</a><span class="Delimiter">(</span>curr<span class="Delimiter">);</span>
<span id="L181" class="LineNr">181 </span><span class="Delimiter">}</span>
<span id="L182" class="LineNr">182 </span><span class="Delimiter">:(after "Begin Preprocess read_memory(x)")</span>
<span id="L183" class="LineNr">183 </span><span class="Normal">if</span> <span class="Delimiter">(</span>x<span class="Delimiter">.</span>name == <span class="Constant">"number-of-locals"</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L184" class="LineNr">184 </span> vector<<span class="Normal">double</span>> result<span class="Delimiter">;</span>
<span id="L185" class="LineNr">185 </span> result<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>Name[get<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> current_recipe_name<span class="Delimiter">())</span>][<span class="Constant">""</span>]<span class="Delimiter">);</span>
<span id="L186" class="LineNr">186 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>result<span class="Delimiter">.</span>back<span class="Delimiter">()</span> == <span class="Constant">0</span><span class="Delimiter">)</span>
<span id="L187" class="LineNr">187 </span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> << <span class="Constant">"no space allocated for default-space in <a href='010vm.cc.html#L19'>recipe</a> "</span> << current_recipe_name<span class="Delimiter">()</span> << <span class="Constant">"; are you using names?</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
<span id="L188" class="LineNr">188 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span id="L189" class="LineNr">189 </span><span class="Delimiter">}</span>
<span id="L190" class="LineNr">190 </span><span class="Delimiter">:(after "Begin Preprocess write_memory(x, data)")</span>
<span id="L191" class="LineNr">191 </span><span class="Normal">if</span> <span class="Delimiter">(</span>x<span class="Delimiter">.</span>name == <span class="Constant">"number-of-locals"</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L192" class="LineNr">192 </span> <a href='003trace.cc.html#L168'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span>current_recipe_name<span class="Delimiter">())</span> << <span class="Constant">"can't write to special name 'number-of-locals'</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span>
<span id="L193" class="LineNr">193 </span> <span class="Identifier">return</span><span class="Delimiter">;</span>
<span id="L194" class="LineNr">194 </span><span class="Delimiter">}</span>
<span id="L195" class="LineNr">195 </span>
<span id="L196" class="LineNr">196 </span><span class="SalientComment">//:: 'local-scope' is like 'new-default-space' except that we'll reclaim the</span>
<span id="L197" class="LineNr">197 </span><span class="SalientComment">//:: default-space when the routine exits</span>
<span id="L198" class="LineNr">198 </span>
<span id="L199" class="LineNr">199 </span><span class="Delimiter">:(scenario local_scope)</span>
<span id="L200" class="LineNr">200 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L201" class="LineNr">201 </span> <span class="Constant">1</span>:&:@:location<span class="Special"> <- </span>foo
<span id="L202" class="LineNr">202 </span> <span class="Constant">2</span>:&:@:location<span class="Special"> <- </span>foo
<span id="L203" class="LineNr">203 </span> <span class="Constant">3</span>:<span class="Normal">bool</span><span class="Special"> <- </span>equal <span class="Constant">1</span>:&<span class="Delimiter">,</span> <span class="Constant">2</span>:&
<span id="L204" class="LineNr">204 </span>]
<span id="L205" class="LineNr">205 </span><span class="muRecipe">def</span> foo [
<span id="L206" class="LineNr">206 </span> local-scope
<span id="L207" class="LineNr">207 </span> <span class="Normal">x</span>:num<span class="Special"> <- </span>copy <span class="Constant">34</span>
<span id="L208" class="LineNr">208 </span> <span class="Identifier">return</span> <span class="Normal">default</span>-space:space
<span id="L209" class="LineNr">209 </span>]
<span id="L210" class="LineNr">210 </span><span class="Comment"># both calls to foo should have received the same default-space</span>
<span id="L211" class="LineNr">211 </span><span class="traceContains">+mem: storing 1 in location 3</span>
<span id="L212" class="LineNr">212 </span>
<span id="L213" class="LineNr">213 </span><span class="Delimiter">:(scenario local_scope_frees_up_addresses)</span>
<span id="L214" class="LineNr">214 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L215" class="LineNr">215 </span> local-scope
<span id="L216" class="LineNr">216 </span> <span class="Normal">x</span>:text<span class="Special"> <- </span><span class="Normal">new</span> [abc]
<span id="L217" class="LineNr">217 </span>]
<span id="L218" class="LineNr">218 </span><span class="traceContains">+mem: clearing x:text</span>
<span id="L219" class="LineNr">219 </span>
<span id="L220" class="LineNr">220 </span><span class="Delimiter">:(before "End Rewrite Instruction(curr, <a href='010vm.cc.html#L19'>recipe</a> result)")</span>
<span id="L221" class="LineNr">221 </span><span class="Normal">if</span> <span class="Delimiter">(</span>curr<span class="Delimiter">.</span>name == <span class="Constant">"local-scope"</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L222" class="LineNr">222 </span> <a href='043space.cc.html#L312'>rewrite_default_space_instruction</a><span class="Delimiter">(</span>curr<span class="Delimiter">);</span>
<span id="L223" class="LineNr">223 </span><span class="Delimiter">}</span>
<span id="L224" class="LineNr">224 </span>
<span id="L225" class="LineNr">225 </span><span class="Comment">//: todo: do this in a transform, rather than magically in the 'return' instruction</span>
<span id="L226" class="LineNr">226 </span><span class="Delimiter">:(after "Falling Through End Of Recipe")</span>
<span id="L227" class="LineNr">227 </span><a href='043space.cc.html#L232'>try_reclaim_locals</a><span class="Delimiter">();</span>
<span id="L228" class="LineNr">228 </span><span class="Delimiter">:(after "Starting Reply")</span>
<span id="L229" class="LineNr">229 </span><a href='043space.cc.html#L232'>try_reclaim_locals</a><span class="Delimiter">();</span>
<span id="L230" class="LineNr">230 </span>
<span id="L231" class="LineNr">231 </span><span class="Delimiter">:(code)</span>
<span id="L232" class="LineNr">232 </span><span class="Normal">void</span> <a href='043space.cc.html#L232'>try_reclaim_locals</a><span class="Delimiter">()</span> <span class="Delimiter">{</span>
<span id="L233" class="LineNr">233 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!Reclaim_memory<span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
<span id="L234" class="LineNr">234 </span> <span class="Comment">// only reclaim routines starting with 'local-scope'</span>
<span id="L235" class="LineNr">235 </span> <span class="Normal">const</span> <a href='010vm.cc.html#L14'>recipe_ordinal</a> r = get<span class="Delimiter">(</span>Recipe_ordinal<span class="Delimiter">,</span> current_recipe_name<span class="Delimiter">());</span>
<span id="L236" class="LineNr">236 </span> <span class="Normal">const</span> recipe& exiting_recipe = get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">);</span>
<span id="L237" class="LineNr">237 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>exiting_recipe<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
<span id="L238" class="LineNr">238 </span> <span class="Normal">const</span> instruction& inst = exiting_recipe<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">);</span>
<span id="L239" class="LineNr">239 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>name_before_rewrite != <span class="Constant">"local-scope"</span><span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
<span id="L240" class="LineNr">240 </span> <span class="Comment">// reclaim any local variables unless they're being returned</span>
<span id="L241" class="LineNr">241 </span> vector<<span class="Normal">double</span>> zeros<span class="Delimiter">;</span>
<span id="L242" class="LineNr">242 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Comment">/*</span><span class="Comment">leave default space for last</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>exiting_recipe<span class="Delimiter">.</span>steps<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L243" class="LineNr">243 </span> <span class="Conceal">¦</span> <span class="Normal">const</span> instruction& inst = exiting_recipe<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
<span id="L244" class="LineNr">244 </span> <span class="Conceal">¦</span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">int</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>inst<span class="Delimiter">.</span>products<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L245" class="LineNr">245 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">const</span> reagent& product = inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">);</span>
<span id="L246" class="LineNr">246 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Comment">// local variables only</span>
<span id="L247" class="LineNr">247 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_property<span class="Delimiter">(</span>product<span class="Delimiter">,</span> <span class="Constant">"lookup"</span><span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
<span id="L248" class="LineNr">248 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_property<span class="Delimiter">(</span>product<span class="Delimiter">,</span> <span class="Constant">"raw"</span><span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> <span class="Comment">// tests often want to check such locations after they run</span>
<span id="L249" class="LineNr">249 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='043space.cc.html#L274'>escaping</a><span class="Delimiter">(</span>product<span class="Delimiter">))</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
<span id="L250" class="LineNr">250 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Comment">// End Checks For Reclaiming Locals</span>
<span id="L251" class="LineNr">251 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9999</span><span class="Delimiter">,</span> <span class="Constant">"mem"</span><span class="Delimiter">)</span> << <span class="Constant">"clearing "</span> << product<span class="Delimiter">.</span>original_string << <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
<span id="L252" class="LineNr">252 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> zeros<span class="Delimiter">.</span>resize<span class="Delimiter">(</span>size_of<span class="Delimiter">(</span>product<span class="Delimiter">));</span>
<span id="L253" class="LineNr">253 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> write_memory<span class="Delimiter">(</span>product<span class="Delimiter">,</span> zeros<span class="Delimiter">);</span>
<span id="L254" class="LineNr">254 </span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
<span id="L255" class="LineNr">255 </span> <span class="Delimiter">}</span>
<span id="L256" class="LineNr">256 </span> <a href='003trace.cc.html#L161'>trace</a><span class="Delimiter">(</span><span class="Constant">9999</span><span class="Delimiter">,</span> <span class="Constant">"mem"</span><span class="Delimiter">)</span> << <span class="Constant">"automatically abandoning "</span> << current_call<span class="Delimiter">().</span>default_space << <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
<span id="L257" class="LineNr">257 </span> <a href='037abandon.cc.html#L28'>abandon</a><span class="Delimiter">(</span>current_call<span class="Delimiter">().</span>default_space<span class="Delimiter">,</span>
<span id="L258" class="LineNr">258 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</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>type<span class="Delimiter">-></span>right<span class="Delimiter">,</span>
<span id="L259" class="LineNr">259 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Comment">/*</span><span class="Comment">refcount</span><span class="Comment">*/</span><span class="Constant">1</span> + <span class="Comment">/*</span><span class="Comment">array length</span><span class="Comment">*/</span><span class="Constant">1</span> + <span class="Comment">/*</span><span class="Comment">number-of-locals</span><span class="Comment">*/</span>Name[r][<span class="Constant">""</span>]<span class="Delimiter">);</span>
<span id="L260" class="LineNr">260 </span><span class="Delimiter">}</span>
<span id="L261" class="LineNr">261 </span>
<span id="L262" class="LineNr">262 </span><span class="Comment">//: Reclaiming local variables above requires remembering what name an</span>
<span id="L263" class="LineNr">263 </span><span class="Comment">//: instruction had before any rewrites or transforms.</span>
<span id="L264" class="LineNr">264 </span><span class="Delimiter">:(before "End <a href='010vm.cc.html#L32'>instruction</a> Fields")</span>
<span id="L265" class="LineNr">265 </span>string name_before_rewrite<span class="Delimiter">;</span>
<span id="L266" class="LineNr">266 </span><span class="Delimiter">:(before "End <a href='010vm.cc.html#L32'>instruction</a> Clear")</span>
<span id="L267" class="LineNr">267 </span>name_before_rewrite<span class="Delimiter">.</span><a href='050scenario.cc.html#L60'>clear</a><span class="Delimiter">();</span>
<span id="L268" class="LineNr">268 </span><span class="Delimiter">:(before "End next_instruction(curr)")</span>
<span id="L269" class="LineNr">269 </span>curr<span class="Delimiter">-></span>name_before_rewrite = curr<span class="Delimiter">-></span>name<span class="Delimiter">;</span>
<span id="L270" class="LineNr">270 </span>
<span id="L271" class="LineNr">271 </span><span class="Delimiter">:(code)</span>
<span id="L272" class="LineNr">272 </span><span class="Comment">// is this reagent one of the values returned by the current (return) instruction?</span>
<span id="L273" class="LineNr">273 </span><span class="Comment">// is the corresponding ingredient saved in the caller?</span>
<span id="L274" class="LineNr">274 </span><span class="Normal">bool</span> <a href='043space.cc.html#L274'>escaping</a><span class="Delimiter">(</span><span class="Normal">const</span> reagent& r<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L275" class="LineNr">275 </span> assert<span class="Delimiter">(</span>Current_routine<span class="Delimiter">);</span> <span class="Comment">// run-time only</span>
<span id="L276" class="LineNr">276 </span> <span class="Comment">// nothing escapes when you fall through past end of recipe</span>
<span id="L277" class="LineNr">277 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>current_step_index<span class="Delimiter">()</span> >= <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>Current_routine<span class="Delimiter">-></span>steps<span class="Delimiter">()))</span> <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span>
<span id="L278" class="LineNr">278 </span> <span class="Normal">for</span> <span class="Delimiter">(</span><span class="Normal">long</span> <span class="Normal">long</span> i = <span class="Constant">0</span><span class="Delimiter">;</span> i < <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>current_instruction<span class="Delimiter">().</span>ingredients<span class="Delimiter">);</span> ++i<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L279" class="LineNr">279 </span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>r == current_instruction<span class="Delimiter">().</span>ingredients<span class="Delimiter">.</span>at<span class="Delimiter">(</span>i<span class="Delimiter">))</span> <span class="Delimiter">{</span>
<span id="L280" class="LineNr">280 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='043space.cc.html#L302'>caller_uses_product</a><span class="Delimiter">(</span>i<span class="Delimiter">))</span>
<span id="L281" class="LineNr">281 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
<span id="L282" class="LineNr">282 </span> <span class="Conceal">¦</span> <span class="Delimiter">}</span>
<span id="L283" class="LineNr">283 </span> <span class="Delimiter">}</span>
<span id="L284" class="LineNr">284 </span> <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span>
<span id="L285" class="LineNr">285 </span><span class="Delimiter">}</span>
<span id="L286" class="LineNr">286 </span>
<span id="L287" class="LineNr">287 </span><span class="Comment">//: since we don't decrement refcounts for escaping values above, make sure we</span>
<span id="L288" class="LineNr">288 </span><span class="Comment">//: don't increment them when the caller saves them either</span>
<span id="L289" class="LineNr">289 </span>
<span id="L290" class="LineNr">290 </span><span class="Delimiter">:(before "End should_update_refcounts() Special-cases")</span>
<span id="L291" class="LineNr">291 </span><span class="Normal">if</span> <span class="Delimiter">(</span>Writing_products_of_instruction<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L292" class="LineNr">292 </span> <span class="Normal">const</span> instruction& inst = current_instruction<span class="Delimiter">();</span>
<span id="L293" class="LineNr">293 </span> <span class="Comment">// should_update_refcounts() Special-cases When Writing Products Of Primitive Instructions</span>
<span id="L294" class="LineNr">294 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>inst<span class="Delimiter">.</span>operation < <a href='010vm.cc.html#L191'>MAX_PRIMITIVE_RECIPES</a><span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
<span id="L295" class="LineNr">295 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!contains_key<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> inst<span class="Delimiter">.</span>operation<span class="Delimiter">))</span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
<span id="L296" class="LineNr">296 </span> <span class="Normal">const</span> recipe& callee = get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> inst<span class="Delimiter">.</span>operation<span class="Delimiter">);</span>
<span id="L297" class="LineNr">297 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>callee<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
<span id="L298" class="LineNr">298 </span> <span class="Identifier">return</span> callee<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>name_before_rewrite != <span class="Constant">"local-scope"</span><span class="Delimiter">;</span> <span class="Comment">// callees that call local-scope are already dealt with before return</span>
<span id="L299" class="LineNr">299 </span><span class="Delimiter">}</span>
<span id="L300" class="LineNr">300 </span>
<span id="L301" class="LineNr">301 </span><span class="Delimiter">:(code)</span>
<span id="L302" class="LineNr">302 </span><span class="Normal">bool</span> <a href='043space.cc.html#L302'>caller_uses_product</a><span class="Delimiter">(</span><span class="Normal">int</span> product_index<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L303" class="LineNr">303 </span> assert<span class="Delimiter">(</span>Current_routine<span class="Delimiter">);</span> <span class="Comment">// run-time only</span>
<span id="L304" class="LineNr">304 </span> assert<span class="Delimiter">(</span>!Current_routine<span class="Delimiter">-></span>calls<span class="Delimiter">.</span>empty<span class="Delimiter">());</span>
<span id="L305" class="LineNr">305 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>Current_routine<span class="Delimiter">-></span>calls<span class="Delimiter">.</span>size<span class="Delimiter">()</span> == <span class="Constant">1</span><span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span>
<span id="L306" class="LineNr">306 </span> <span class="Normal">const</span> call& caller = *++Current_routine<span class="Delimiter">-></span>calls<span class="Delimiter">.</span>begin<span class="Delimiter">();</span>
<span id="L307" class="LineNr">307 </span> <span class="Normal">const</span> instruction& caller_inst = to_instruction<span class="Delimiter">(</span>caller<span class="Delimiter">);</span>
<span id="L308" class="LineNr">308 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>product_index >= <a href='001help.cc.html#L138'>SIZE</a><span class="Delimiter">(</span>caller_inst<span class="Delimiter">.</span>products<span class="Delimiter">))</span> <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span>
<span id="L309" class="LineNr">309 </span> <span class="Identifier">return</span> !is_dummy<span class="Delimiter">(</span>caller_inst<span class="Delimiter">.</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span>product_index<span class="Delimiter">));</span>
<span id="L310" class="LineNr">310 </span><span class="Delimiter">}</span>
<span id="L311" class="LineNr">311 </span>
<span id="L312" class="LineNr">312 </span><span class="Normal">void</span> <a href='043space.cc.html#L312'>rewrite_default_space_instruction</a><span class="Delimiter">(</span>instruction& curr<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L313" class="LineNr">313 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!curr<span class="Delimiter">.</span>ingredients<span class="Delimiter">.</span>empty<span class="Delimiter">())</span>
<span id="L314" class="LineNr">314 </span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> << <span class="Constant">"'"</span> << to_original_string<span class="Delimiter">(</span>curr<span class="Delimiter">)</span> << <span class="Constant">"' can't take any ingredients</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span>
<span id="L315" class="LineNr">315 </span> curr<span class="Delimiter">.</span>name = <span class="Constant">"new"</span><span class="Delimiter">;</span>
<span id="L316" class="LineNr">316 </span> <span class="Constant">curr.ingredients.push_back(reagent("location:type</span><span class="Constant">"));</span>
<span id="L317" class="LineNr">317 </span> <span class="Constant">curr.ingredients.push_back(reagent("number-of-locals:literal</span><span class="Constant">"));</span>
<span id="L318" class="LineNr">318 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!curr<span class="Delimiter">.</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">())</span>
<span id="L319" class="LineNr">319 </span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> << <span class="Constant">"new-default-space can't take any results</span><span class="cSpecial">\n</span><span class="Constant">"</span> << end<span class="Delimiter">();</span>
<span id="L320" class="LineNr">320 </span> curr<span class="Delimiter">.</span>products<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>reagent<span class="Delimiter">(</span><span class="Constant">"default-space:space"</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 local_scope_frees_up_addresses_inside_containers)</span>
<span id="L324" class="LineNr">324 </span><span class="muData">container</span> foo [
<span id="L325" class="LineNr">325 </span> <span class="Normal">x</span>:num
<span id="L326" class="LineNr">326 </span> <span class="Normal">y</span>:&:num
<span id="L327" class="LineNr">327 </span>]
<span id="L328" class="LineNr">328 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L329" class="LineNr">329 </span> local-scope
<span id="L330" class="LineNr">330 </span> <span class="Normal">x</span>:&:num<span class="Special"> <- </span><span class="Normal">new</span> <span class="Constant">number:type</span>
<span id="L331" class="LineNr">331 </span> <span class="Normal">y</span>:foo<span class="Special"> <- </span>merge <span class="Constant">34</span><span class="Delimiter">,</span> x:&:num
<span id="L332" class="LineNr">332 </span> <span class="Comment"># x and y are both cleared when main returns</span>
<span id="L333" class="LineNr">333 </span>]
<span id="L334" class="LineNr">334 </span><span class="traceContains">+mem: clearing x:&:num</span>
<span id="L335" class="LineNr">335 </span><span class="traceContains">+mem: decrementing refcount of 1006: 2 -> 1</span>
<span id="L336" class="LineNr">336 </span><span class="traceContains">+mem: clearing y:foo</span>
<span id="L337" class="LineNr">337 </span><span class="traceContains">+mem: decrementing refcount of 1006: 1 -> 0</span>
<span id="L338" class="LineNr">338 </span><span class="traceContains">+mem: automatically abandoning 1006</span>
<span id="L339" class="LineNr">339 </span>
<span id="L340" class="LineNr">340 </span><span class="Delimiter">:(scenario local_scope_returns_addresses_inside_containers)</span>
<span id="L341" class="LineNr">341 </span><span class="muData">container</span> foo [
<span id="L342" class="LineNr">342 </span> <span class="Normal">x</span>:num
<span id="L343" class="LineNr">343 </span> <span class="Normal">y</span>:&:num
<span id="L344" class="LineNr">344 </span>]
<span id="L345" class="LineNr">345 </span><span class="muRecipe">def</span> f [
<span id="L346" class="LineNr">346 </span> local-scope
<span id="L347" class="LineNr">347 </span> <span class="Normal">x</span>:&:num<span class="Special"> <- </span><span class="Normal">new</span> <span class="Constant">number:type</span>
<span id="L348" class="LineNr">348 </span> *x:&:num<span class="Special"> <- </span>copy <span class="Constant">12</span>
<span id="L349" class="LineNr">349 </span> <span class="Normal">y</span>:foo<span class="Special"> <- </span>merge <span class="Constant">34</span><span class="Delimiter">,</span> x:&:num
<span id="L350" class="LineNr">350 </span> <span class="Comment"># since y is 'escaping' f, it should not be cleared</span>
<span id="L351" class="LineNr">351 </span> <span class="Identifier">return</span> y:foo
<span id="L352" class="LineNr">352 </span>]
<span id="L353" class="LineNr">353 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L354" class="LineNr">354 </span> <span class="Constant">1</span>:foo<span class="Special"> <- </span>f
<span id="L355" class="LineNr">355 </span> <span class="Constant">3</span>:num<span class="Special"> <- </span>get <span class="Constant">1</span>:foo<span class="Delimiter">,</span> <span class="Constant">x:offset</span>
<span id="L356" class="LineNr">356 </span> <span class="Constant">4</span>:&:num<span class="Special"> <- </span>get <span class="Constant">1</span>:foo<span class="Delimiter">,</span> <span class="Constant">y:offset</span>
<span id="L357" class="LineNr">357 </span> <span class="Constant">5</span>:num<span class="Special"> <- </span>copy *<span class="Constant">4</span>:&:num
<span id="L358" class="LineNr">358 </span> <span class="Constant">1</span>:foo<span class="Special"> <- </span><a href='001help.cc.html#L218'>put</a> <span class="Constant">1</span>:foo<span class="Delimiter">,</span> <span class="Constant">y:offset</span><span class="Delimiter">,</span> <span class="Constant">0</span>
<span id="L359" class="LineNr">359 </span> <span class="Constant">4</span>:&:num<span class="Special"> <- </span>copy <span class="Constant">0</span>
<span id="L360" class="LineNr">360 </span>]
<span id="L361" class="LineNr">361 </span><span class="traceContains">+mem: storing 34 in location 1</span>
<span id="L362" class="LineNr">362 </span><span class="traceContains">+mem: storing 1006 in location 2</span>
<span id="L363" class="LineNr">363 </span><span class="traceContains">+mem: storing 34 in location 3</span>
<span id="L364" class="LineNr">364 </span><span class="Comment"># refcount of 1:foo shouldn't include any stray ones from f</span>
<span id="L365" class="LineNr">365 </span><span class="traceContains">+run: {4: ("address" "number")} <- get {1: "foo"}, {y: "offset"}</span>
<span id="L366" class="LineNr">366 </span><span class="traceContains">+mem: incrementing refcount of 1006: 1 -> 2</span>
<span id="L367" class="LineNr">367 </span><span class="Comment"># 1:foo wasn't abandoned/cleared</span>
<span id="L368" class="LineNr">368 </span><span class="traceContains">+run: {5: "number"} <- copy {4: ("address" "number"), "lookup": ()}</span>
<span id="L369" class="LineNr">369 </span><span class="traceContains">+mem: storing 12 in location 5</span>
<span id="L370" class="LineNr">370 </span><span class="traceContains">+run: {1: "foo"} <- <a href='001help.cc.html#L218'>put</a> {1: "foo"}, {y: "offset"}, {0: "literal"}</span>
<span id="L371" class="LineNr">371 </span><span class="traceContains">+mem: decrementing refcount of 1006: 2 -> 1</span>
<span id="L372" class="LineNr">372 </span><span class="traceContains">+run: {4: ("address" "number")} <- copy {0: "literal"}</span>
<span id="L373" class="LineNr">373 </span><span class="traceContains">+mem: decrementing refcount of 1006: 1 -> 0</span>
<span id="L374" class="LineNr">374 </span><span class="traceContains">+mem: automatically abandoning 1006</span>
<span id="L375" class="LineNr">375 </span>
<span id="L376" class="LineNr">376 </span><span class="Delimiter">:(scenario local_scope_claims_return_values_when_not_saved)</span>
<span id="L377" class="LineNr">377 </span><span class="muRecipe">def</span> f [
<span id="L378" class="LineNr">378 </span> local-scope
<span id="L379" class="LineNr">379 </span> <span class="Normal">x</span>:&:num<span class="Special"> <- </span><span class="Normal">new</span> <span class="Constant">number:type</span>
<span id="L380" class="LineNr">380 </span> <span class="Identifier">return</span> x:&:num
<span id="L381" class="LineNr">381 </span>]
<span id="L382" class="LineNr">382 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L383" class="LineNr">383 </span> f <span class="Comment"># doesn't save result</span>
<span id="L384" class="LineNr">384 </span>]
<span id="L385" class="LineNr">385 </span><span class="Comment"># x reclaimed</span>
<span id="L386" class="LineNr">386 </span><span class="traceContains">+mem: automatically abandoning 1004</span>
<span id="L387" class="LineNr">387 </span><span class="Comment"># f's local scope reclaimed</span>
<span id="L388" class="LineNr">388 </span><span class="traceContains">+mem: automatically abandoning 1000</span>
<span id="L389" class="LineNr">389 </span>
<span id="L390" class="LineNr">390 </span><span class="SalientComment">//:: all recipes must set default-space one way or another</span>
<span id="L391" class="LineNr">391 </span>
<span id="L392" class="LineNr">392 </span><span class="Delimiter">:(before "End Globals")</span>
<span id="L393" class="LineNr">393 </span><span class="Normal">bool</span> Hide_missing_default_space_errors = <span class="Constant">true</span><span class="Delimiter">;</span>
<span id="L394" class="LineNr">394 </span><span class="Delimiter">:(before "End Checks")</span>
<span id="L395" class="LineNr">395 </span>Transform<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>check_default_space<span class="Delimiter">);</span> <span class="Comment">// idempotent</span>
<span id="L396" class="LineNr">396 </span><span class="Delimiter">:(code)</span>
<span id="L397" class="LineNr">397 </span><span class="Normal">void</span> check_default_space<span class="Delimiter">(</span><span class="Normal">const</span> <a href='010vm.cc.html#L14'>recipe_ordinal</a> r<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L398" class="LineNr">398 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>Hide_missing_default_space_errors<span class="Delimiter">)</span> <span class="Identifier">return</span><span class="Delimiter">;</span> <span class="Comment">// skip previous core tests; this is only for Mu code</span>
<span id="L399" class="LineNr">399 </span> <span class="Normal">const</span> recipe& caller = get<span class="Delimiter">(</span>Recipe<span class="Delimiter">,</span> r<span class="Delimiter">);</span>
<span id="L400" class="LineNr">400 </span> <span class="Comment">// End check_default_space Special-cases</span>
<span id="L401" class="LineNr">401 </span> <span class="Comment">// assume recipes with only numeric addresses know what they're doing (usually tests)</span>
<span id="L402" class="LineNr">402 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!contains_non_special_name<span class="Delimiter">(</span>r<span class="Delimiter">))</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
<span id="L403" class="LineNr">403 </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">"transform"</span><span class="Delimiter">)</span> << <span class="Constant">"--- check that <a href='010vm.cc.html#L19'>recipe</a> "</span> << caller<span class="Delimiter">.</span>name << <span class="Constant">" sets default-space"</span> << <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
<span id="L404" class="LineNr">404 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>caller<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">return</span><span class="Delimiter">;</span>
<span id="L405" class="LineNr">405 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>caller<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>products<span class="Delimiter">.</span>empty<span class="Delimiter">()</span>
<span id="L406" class="LineNr">406 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> || caller<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>products<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">).</span>name != <span class="Constant">"default-space"</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L407" class="LineNr">407 </span> <span class="Conceal">¦</span> <a href='003trace.cc.html#L168'>raise</a> << caller<span class="Delimiter">.</span>name << <span class="Constant">" does not seem to start with 'local-scope' or 'default-space'</span><span class="cSpecial">\n</span><span class="Constant">"</span> << <a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span>
<span id="L408" class="LineNr">408 </span> <span class="Delimiter">}</span>
<span id="L409" class="LineNr">409 </span><span class="Delimiter">}</span>
<span id="L410" class="LineNr">410 </span><span class="Delimiter">:(after "Load Mu Prelude")</span>
<span id="L411" class="LineNr">411 </span>Hide_missing_default_space_errors = <span class="Constant">false</span><span class="Delimiter">;</span>
<span id="L412" class="LineNr">412 </span><span class="Delimiter">:(after "Test Runs")</span>
<span id="L413" class="LineNr">413 </span>Hide_missing_default_space_errors = <span class="Constant">true</span><span class="Delimiter">;</span>
<span id="L414" class="LineNr">414 </span><span class="Delimiter">:(after "Running Main")</span>
<span id="L415" class="LineNr">415 </span>Hide_missing_default_space_errors = <span class="Constant">false</span><span class="Delimiter">;</span>
<span id="L416" class="LineNr">416 </span>
<span id="L417" class="LineNr">417 </span><span class="Delimiter">:(code)</span>
<span id="L418" class="LineNr">418 </span><span class="Normal">bool</span> contains_non_special_name<span class="Delimiter">(</span><span class="Normal">const</span> <a href='010vm.cc.html#L14'>recipe_ordinal</a> r<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L419" class="LineNr">419 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>map<string<span class="Delimiter">,</span> <span class="Normal">int</span>>::iterator p = Name[r]<span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != Name[r]<span class="Delimiter">.</span><a href='003trace.cc.html#L185'>end</a><span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L420" class="LineNr">420 </span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>p<span class="Delimiter">-></span>first<span class="Delimiter">.</span>empty<span class="Delimiter">())</span> <span class="Identifier">continue</span><span class="Delimiter">;</span>
<span id="L421" class="LineNr">421 </span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>p<span class="Delimiter">-></span>first<span class="Delimiter">.</span>find<span class="Delimiter">(</span><span class="Constant">"stash_"</span><span class="Delimiter">)</span> == <span class="Constant">0</span><span class="Delimiter">)</span> <span class="Identifier">continue</span><span class="Delimiter">;</span> <span class="Comment">// generated by rewrite_stashes_to_text (cross-layer)</span>
<span id="L422" class="LineNr">422 </span> <span class="Conceal">¦</span> <span class="Normal">if</span> <span class="Delimiter">(</span>!is_special_name<span class="Delimiter">(</span>p<span class="Delimiter">-></span>first<span class="Delimiter">))</span>
<span id="L423" class="LineNr">423 </span> <span class="Conceal">¦</span> <span class="Conceal">¦</span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
<span id="L424" class="LineNr">424 </span> <span class="Delimiter">}</span>
<span id="L425" class="LineNr">425 </span> <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span>
<span id="L426" class="LineNr">426 </span><span class="Delimiter">}</span>
<span id="L427" class="LineNr">427 </span>
<span id="L428" class="LineNr">428 </span><span class="Comment">// reagent comparison -- only between reagents in a single recipe</span>
<span id="L429" class="LineNr">429 </span><span class="Normal">bool</span> <span class="Normal">operator</span>==<span class="Delimiter">(</span><span class="Normal">const</span> reagent& a<span class="Delimiter">,</span> <span class="Normal">const</span> reagent& b<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L430" class="LineNr">430 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>a<span class="Delimiter">.</span>name != b<span class="Delimiter">.</span>name<span class="Delimiter">)</span> <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span>
<span id="L431" class="LineNr">431 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>property<span class="Delimiter">(</span>a<span class="Delimiter">,</span> <span class="Constant">"space"</span><span class="Delimiter">)</span> != property<span class="Delimiter">(</span>b<span class="Delimiter">,</span> <span class="Constant">"space"</span><span class="Delimiter">))</span> <span class="Identifier">return</span> <span class="Constant">false</span><span class="Delimiter">;</span>
<span id="L432" class="LineNr">432 </span> <span class="Identifier">return</span> <span class="Constant">true</span><span class="Delimiter">;</span>
<span id="L433" class="LineNr">433 </span><span class="Delimiter">}</span>
<span id="L434" class="LineNr">434 </span>
<span id="L435" class="LineNr">435 </span><span class="Normal">bool</span> <span class="Normal">operator</span><<span class="Delimiter">(</span><span class="Normal">const</span> reagent& a<span class="Delimiter">,</span> <span class="Normal">const</span> reagent& b<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L436" class="LineNr">436 </span> <span class="Normal">int</span> aspace = <span class="Constant">0</span><span class="Delimiter">,</span> bspace = <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L437" class="LineNr">437 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_property<span class="Delimiter">(</span>a<span class="Delimiter">,</span> <span class="Constant">"space"</span><span class="Delimiter">))</span> aspace = <a href='002test.cc.html#L92'>to_integer</a><span class="Delimiter">(</span>property<span class="Delimiter">(</span>a<span class="Delimiter">,</span> <span class="Constant">"space"</span><span class="Delimiter">)-></span>value<span class="Delimiter">);</span>
<span id="L438" class="LineNr">438 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>has_property<span class="Delimiter">(</span>b<span class="Delimiter">,</span> <span class="Constant">"space"</span><span class="Delimiter">))</span> bspace = <a href='002test.cc.html#L92'>to_integer</a><span class="Delimiter">(</span>property<span class="Delimiter">(</span>b<span class="Delimiter">,</span> <span class="Constant">"space"</span><span class="Delimiter">)-></span>value<span class="Delimiter">);</span>
<span id="L439" class="LineNr">439 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>aspace != bspace<span class="Delimiter">)</span> <span class="Identifier">return</span> aspace < bspace<span class="Delimiter">;</span>
<span id="L440" class="LineNr">440 </span> <span class="Identifier">return</span> a<span class="Delimiter">.</span>name < b<span class="Delimiter">.</span>name<span class="Delimiter">;</span>
<span id="L441" class="LineNr">441 </span><span class="Delimiter">}</span>
</pre>
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