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<a href='https://github.com/akkartik/mu/blob/master/043space.cc'>https://github.com/akkartik/mu/blob/master/043space.cc</a>
<pre id='vimCodeElement'>
<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 class="Comment">//:</span>
<span id="L5" class="LineNr"> 5 </span><span class="Comment">//: Spaces are often called 'scopes' in other languages. Stack frames are a</span>
<span id="L6" class="LineNr"> 6 </span><span class="Comment">//: limited form of space that can't outlive callers.</span>
<span id="L7" class="LineNr"> 7 </span><span class="Comment">//:</span>
<span id="L8" class="LineNr"> 8 </span><span class="Comment">//: Warning: messing with 'default-space' can corrupt memory. Don't share</span>
<span id="L9" class="LineNr"> 9 </span><span class="Comment">//: default-space between recipes. Later we'll see how to chain spaces safely.</span>
<span id="L10" class="LineNr"> 10 </span><span class="Comment">//:</span>
<span id="L11" class="LineNr"> 11 </span><span class="Comment">//: Tests in this layer can write to a location as part of one type, and read</span>
<span id="L12" class="LineNr"> 12 </span><span class="Comment">//: it as part of another. This is unsafe and insecure, and we'll stop doing</span>
<span id="L13" class="LineNr"> 13 </span><span class="Comment">//: this once we switch to variable names.</span>
<span id="L14" class="LineNr"> 14 </span>
<span id="L15" class="LineNr"> 15 </span><span class="Comment">//: Under the hood, a space is an array of locations in memory.</span>
<span id="L16" class="LineNr"> 16 </span><span class="Delimiter">:(before "End Mu Types Initialization")</span>
<span id="L17" class="LineNr"> 17 </span><a href='001help.cc.html#L221'>put</a><span class="Delimiter">(</span><span class="Special">Type_abbreviations</span><span class="Delimiter">,</span> <span class="Constant">"space"</span><span class="Delimiter">,</span> <a href='019type_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="L18" class="LineNr"> 18 </span>
<span id="L19" class="LineNr"> 19 </span><span class="Delimiter">:(scenario set_default_space)</span>
<span id="L20" class="LineNr"> 20 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L21" class="LineNr"> 21 </span> <span class="Comment"># prepare default-space address</span>
<span id="L22" class="LineNr"> 22 </span> <span class="Constant">10</span>:num/alloc-id<span class="Delimiter">,</span> <span class="Constant">11</span>:num<span class="Special"> <- </span>copy <span class="Constant">0</span><span class="Delimiter">,</span> <span class="Constant">1000</span>
<span id="L23" class="LineNr"> 23 </span> <span class="Comment"># prepare default-space payload</span>
<span id="L24" class="LineNr"> 24 </span> <span class="Constant">1000</span>:num<span class="Special"> <- </span>copy <span class="Constant">0</span> <span class="Comment"># alloc id of payload</span>
<span id="L25" class="LineNr"> 25 </span> <span class="Constant">1001</span>:num<span class="Special"> <- </span>copy <span class="Constant">5</span> <span class="Comment"># length</span>
<span id="L26" class="LineNr"> 26 </span> <span class="Comment"># actual start of this recipe</span>
<span id="L27" class="LineNr"> 27 </span> <span class="Normal">default</span>-space:space<span class="Special"> <- </span>copy <span class="Constant">10</span>:&:@:location
<span id="L28" class="LineNr"> 28 </span> <span class="Comment"># if default-space is 1000, then:</span>
<span id="L29" class="LineNr"> 29 </span> <span class="Comment"># 1000: alloc id</span>
<span id="L30" class="LineNr"> 30 </span> <span class="Comment"># 1001: array size</span>
<span id="L31" class="LineNr"> 31 </span> <span class="Comment"># 1002: location 0 (space for the chaining slot; described later; often unused)</span>
<span id="L32" class="LineNr"> 32 </span> <span class="Comment"># 1003: location 1 (space for the chaining slot; described later; often unused)</span>
<span id="L33" class="LineNr"> 33 </span> <span class="Comment"># 1004: local 2 (assuming it is a scalar)</span>
<span id="L34" class="LineNr"> 34 </span> <span class="Constant">2</span>:num<span class="Special"> <- </span>copy <span class="Constant">93</span>
<span id="L35" class="LineNr"> 35 </span>]
<span id="L36" class="LineNr"> 36 </span><span class="traceContains">+mem: storing 93 in location 1004</span>
<span id="L37" class="LineNr"> 37 </span>
<span id="L38" class="LineNr"> 38 </span><span class="Delimiter">:(scenario lookup_sidesteps_default_space)</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"># prepare default-space address</span>
<span id="L41" class="LineNr"> 41 </span> <span class="Constant">10</span>:num/alloc-id<span class="Delimiter">,</span> <span class="Constant">11</span>:num<span class="Special"> <- </span>copy <span class="Constant">0</span><span class="Delimiter">,</span> <span class="Constant">1000</span>
<span id="L42" class="LineNr"> 42 </span> <span class="Comment"># prepare default-space payload</span>
<span id="L43" class="LineNr"> 43 </span> <span class="Constant">1000</span>:num<span class="Special"> <- </span>copy <span class="Constant">0</span> <span class="Comment"># alloc id of payload</span>
<span id="L44" class="LineNr"> 44 </span> <span class="Constant">1001</span>:num<span class="Special"> <- </span>copy <span class="Constant">5</span> <span class="Comment"># length</span>
<span id="L45" class="LineNr"> 45 </span> <span class="Comment"># prepare payload outside the local scope</span>
<span id="L46" class="LineNr"> 46 </span> <span class="Constant">2000</span>:num/alloc-id<span class="Delimiter">,</span> <span class="Constant">2001</span>:num<span class="Special"> <- </span>copy <span class="Constant">0</span><span class="Delimiter">,</span> <span class="Constant">34</span>
<span id="L47" class="LineNr"> 47 </span> <span class="Comment"># actual start of this recipe</span>
<span id="L48" class="LineNr"> 48 </span> <span class="Normal">default</span>-space:space<span class="Special"> <- </span>copy <span class="Constant">10</span>:&:@:location
<span id="L49" class="LineNr"> 49 </span> <span class="Comment"># a local address</span>
<span id="L50" class="LineNr"> 50 </span> <span class="Constant">2</span>:num<span class="Delimiter">,</span> <span class="Constant">3</span>:num<span class="Special"> <- </span>copy <span class="Constant">0</span><span class="Delimiter">,</span> <span class="Constant">2000</span>
<span id="L51" class="LineNr"> 51 </span> <span class="Constant">20</span>:num/<span class="Special">raw <- </span>copy *<span class="Constant">2</span>:&:num
<span id="L52" class="LineNr"> 52 </span>]
<span id="L53" class="LineNr"> 53 </span><span class="traceContains">+mem: storing 2000 in location 1005</span>
<span id="L54" class="LineNr"> 54 </span><span class="traceContains">+mem: storing 34 in location 20</span>
<span id="L55" class="LineNr"> 55 </span>
<span id="L56" class="LineNr"> 56 </span><span class="Comment">//: precondition: disable name conversion for 'default-space'</span>
<span id="L57" class="LineNr"> 57 </span>
<span id="L58" class="LineNr"> 58 </span><span class="Delimiter">:(scenarios transform)</span>
<span id="L59" class="LineNr"> 59 </span><span class="Delimiter">:(scenario convert_names_passes_default_space)</span>
<span id="L60" class="LineNr"> 60 </span><span class="Special">% Hide_errors = true;</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="Normal">default</span>-space:num<span class="Special"> <- </span>copy <span class="Constant">0</span>
<span id="L63" class="LineNr"> 63 </span> <span class="Normal">x</span>:num<span class="Special"> <- </span>copy <span class="Constant">1</span>
<span id="L64" class="LineNr"> 64 </span>]
<span id="L65" class="LineNr"> 65 </span><span class="traceContains">+name: assign x 2</span>
<span id="L66" class="LineNr"> 66 </span><span class="traceAbsent">-name: assign default-space 1</span>
<span id="L67" class="LineNr"> 67 </span><span class="traceAbsent">-name: assign default-space 2</span>
<span id="L68" class="LineNr"> 68 </span><span class="Delimiter">:(scenarios run)</span>
<span id="L69" class="LineNr"> 69 </span>
<span id="L70" class="LineNr"> 70 </span><span class="Delimiter">:(before "End <a href='042name.cc.html#L100'>is_disqualified</a> Special-cases")</span>
<span id="L71" class="LineNr"> 71 </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="L72" class="LineNr"> 72 </span> x<span class="Delimiter">.</span>initialized =<span class="Constant"> true</span><span class="Delimiter">;</span>
<span id="L73" class="LineNr"> 73 </span><span class="Delimiter">:(before "End <a href='042name.cc.html#L172'>is_special_name</a> Special-cases")</span>
<span id="L74" class="LineNr"> 74 </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="L75" class="LineNr"> 75 </span>
<span id="L76" class="LineNr"> 76 </span><span class="Comment">//: core implementation</span>
<span id="L77" class="LineNr"> 77 </span>
<span id="L78" class="LineNr"> 78 </span><span class="Delimiter">:(before "End call Fields")</span>
<span id="L79" class="LineNr"> 79 </span><span class="Normal">int</span> default_space<span class="Delimiter">;</span>
<span id="L80" class="LineNr"> 80 </span><span class="Delimiter">:(before "End call Constructor")</span>
<span id="L81" class="LineNr"> 81 </span>default_space = <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L82" class="LineNr"> 82 </span>
<span id="L83" class="LineNr"> 83 </span><span class="Delimiter">:(before "Begin canonize(x) Lookups")</span>
<span id="L84" class="LineNr"> 84 </span><a href='043space.cc.html#L86'>absolutize</a><span class="Delimiter">(</span>x<span class="Delimiter">);</span>
<span id="L85" class="LineNr"> 85 </span><span class="Delimiter">:(code)</span>
<span id="L86" class="LineNr"> 86 </span><span class="Normal">void</span> <a href='043space.cc.html#L86'>absolutize</a><span class="Delimiter">(</span>reagent& x<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L87" class="LineNr"> 87 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='042name.cc.html#L179'>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="L88" class="LineNr"> 88 </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="L89" class="LineNr"> 89 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!x<span class="Delimiter">.</span>initialized<span class="Delimiter">)</span>
<span id="L90" class="LineNr"> 90 </span> <a href='003trace.cc.html#L196'>raise</a> << to_original_string<span class="Delimiter">(</span><a href='026call.cc.html#L89'>current_instruction</a><span class="Delimiter">())</span> << <span class="Constant">": reagent not initialized: '"</span> << x<span class="Delimiter">.</span>original_string << <span class="Constant">"'\n"</span> << <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
<span id="L91" class="LineNr"> 91 </span> x<span class="Delimiter">.</span><a href='010vm.cc.html#L67'>set_value</a><span class="Delimiter">(</span><a href='043space.cc.html#L101'>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="L92" class="LineNr"> 92 </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="L93" class="LineNr"> 93 </span> assert<span class="Delimiter">(</span><a href='042name.cc.html#L179'>is_raw</a><span class="Delimiter">(</span>x<span class="Delimiter">));</span>
<span id="L94" class="LineNr"> 94 </span><span class="Delimiter">}</span>
<span id="L95" class="LineNr"> 95 </span>
<span id="L96" class="LineNr"> 96 </span><span class="Comment">//: hook replaced in a later layer</span>
<span id="L97" class="LineNr"> 97 </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="L98" class="LineNr"> 98 </span> <span class="Identifier">return</span> <a href='026call.cc.html#L83'>current_call</a><span class="Delimiter">().</span>default_space ? <span class="Delimiter">(</span><a href='026call.cc.html#L83'>current_call</a><span class="Delimiter">().</span>default_space + <span class="Comment">/*</span><span class="Comment">skip alloc id</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="L99" class="LineNr"> 99 </span><span class="Delimiter">}</span>
<span id="L100" class="LineNr">100 </span>
<span id="L101" class="LineNr">101 </span><span class="Normal">int</span> <a href='043space.cc.html#L101'>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="L102" class="LineNr">102 </span> assert<span class="Delimiter">(</span>offset >= <span class="Constant">0</span><span class="Delimiter">);</span>
<span id="L103" class="LineNr">103 </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="L104" class="LineNr">104 </span> <span class="Normal">int</span> size = <a href='001help.cc.html#L229'>get_or_insert</a><span class="Delimiter">(</span><span class="Special">Memory</span><span class="Delimiter">,</span> base<span class="Delimiter">);</span>
<span id="L105" class="LineNr">105 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>offset >= size<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L106" class="LineNr">106 </span> <span class="Comment">// todo: test</span>
<span id="L107" class="LineNr">107 </span> <a href='003trace.cc.html#L196'>raise</a> << <a href='026call.cc.html#L87'>current_recipe_name</a><span class="Delimiter">()</span> << <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#L225'>end</a><span class="Delimiter">();</span>
<span id="L108" class="LineNr">108 </span> <a href='003trace.cc.html#L193'>DUMP</a><span class="Delimiter">(</span><span class="Constant">""</span><span class="Delimiter">);</span>
<span id="L109" class="LineNr">109 </span> exit<span class="Delimiter">(</span><span class="Constant">1</span><span class="Delimiter">);</span>
<span id="L110" class="LineNr">110 </span> <span class="Identifier">return</span> <span class="Constant">0</span><span class="Delimiter">;</span>
<span id="L111" class="LineNr">111 </span> <span class="Delimiter">}</span>
<span id="L112" class="LineNr">112 </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="L113" class="LineNr">113 </span><span class="Delimiter">}</span>
<span id="L114" class="LineNr">114 </span>
<span id="L115" class="LineNr">115 </span><span class="Comment">//: reads and writes to the 'default-space' variable have special behavior</span>
<span id="L116" class="LineNr">116 </span>
<span id="L117" class="LineNr">117 </span><span class="Delimiter">:(after "Begin Preprocess write_memory(x, data)")</span>
<span id="L118" class="LineNr">118 </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="L119" class="LineNr">119 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!is_mu_space<span class="Delimiter">(</span>x<span class="Delimiter">))</span>
<span id="L120" class="LineNr">120 </span> <a href='003trace.cc.html#L196'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span><a href='026call.cc.html#L87'>current_recipe_name</a><span class="Delimiter">())</span> << <span class="Constant">"'default-space' should be of type <a href='043space.cc.html#L101'>address</a>:array:location, but is "</span> << <a href='028call_return.cc.html#L163'>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#L225'>end</a><span class="Delimiter">();</span>
<span id="L121" class="LineNr">121 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><a href='001help.cc.html#L141'>SIZE</a><span class="Delimiter">(</span>data<span class="Delimiter">)</span> != <span class="Constant">2</span><span class="Delimiter">)</span>
<span id="L122" class="LineNr">122 </span> <a href='003trace.cc.html#L196'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span><a href='026call.cc.html#L87'>current_recipe_name</a><span class="Delimiter">())</span> << <span class="Constant">"'default-space' getting data from non-address\n"</span> << <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
<span id="L123" class="LineNr">123 </span> <a href='026call.cc.html#L83'>current_call</a><span class="Delimiter">().</span>default_space = data<span class="Delimiter">.</span>at<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">skip alloc id</span><span class="Comment">*/</span><span class="Constant">1</span><span class="Delimiter">);</span>
<span id="L124" class="LineNr">124 </span> <span class="Identifier">return</span><span class="Delimiter">;</span>
<span id="L125" class="LineNr">125 </span><span class="Delimiter">}</span>
<span id="L126" class="LineNr">126 </span><span class="Delimiter">:(code)</span>
<span id="L127" class="LineNr">127 </span><span class="Normal">bool</span> <a href='043space.cc.html#L127'>is_mu_space</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="L128" class="LineNr">128 </span> canonize_type<span class="Delimiter">(</span>x<span class="Delimiter">);</span>
<span id="L129" class="LineNr">129 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!is_compound_type_starting_with<span class="Delimiter">(</span>x<span class="Delimiter">.</span>type<span class="Delimiter">,</span> <span class="Constant">"address"</span><span class="Delimiter">))</span> <span class="Identifier">return</span><span class="Constant"> false</span><span class="Delimiter">;</span>
<span id="L130" class="LineNr">130 </span> drop_from_type<span class="Delimiter">(</span>x<span class="Delimiter">,</span> <span class="Constant">"address"</span><span class="Delimiter">);</span>
<span id="L131" class="LineNr">131 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!is_compound_type_starting_with<span class="Delimiter">(</span>x<span class="Delimiter">.</span>type<span class="Delimiter">,</span> <span class="Constant">"array"</span><span class="Delimiter">))</span> <span class="Identifier">return</span><span class="Constant"> false</span><span class="Delimiter">;</span>
<span id="L132" class="LineNr">132 </span> drop_from_type<span class="Delimiter">(</span>x<span class="Delimiter">,</span> <span class="Constant">"array"</span><span class="Delimiter">);</span>
<span id="L133" class="LineNr">133 </span> <span class="Identifier">return</span> x<span class="Delimiter">.</span>type && x<span class="Delimiter">.</span>type<span class="Delimiter">-></span>atom && x<span class="Delimiter">.</span>type<span class="Delimiter">-></span>name == <span class="Constant">"location"</span><span class="Delimiter">;</span>
<span id="L134" class="LineNr">134 </span><span class="Delimiter">}</span>
<span id="L135" class="LineNr">135 </span>
<span id="L136" class="LineNr">136 </span><span class="Delimiter">:(scenario get_default_space)</span>
<span id="L137" class="LineNr">137 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L138" class="LineNr">138 </span> <span class="Comment"># prepare default-space address</span>
<span id="L139" class="LineNr">139 </span> <span class="Constant">10</span>:num/alloc-id<span class="Delimiter">,</span> <span class="Constant">11</span>:num<span class="Special"> <- </span>copy <span class="Constant">0</span><span class="Delimiter">,</span> <span class="Constant">1000</span>
<span id="L140" class="LineNr">140 </span> <span class="Comment"># prepare default-space payload</span>
<span id="L141" class="LineNr">141 </span> <span class="Constant">1000</span>:num<span class="Special"> <- </span>copy <span class="Constant">0</span> <span class="Comment"># alloc id of payload</span>
<span id="L142" class="LineNr">142 </span> <span class="Constant">1001</span>:num<span class="Special"> <- </span>copy <span class="Constant">5</span> <span class="Comment"># length</span>
<span id="L143" class="LineNr">143 </span> <span class="Comment"># actual start of this recipe</span>
<span id="L144" class="LineNr">144 </span> <span class="Normal">default</span>-space:space<span class="Special"> <- </span>copy <span class="Constant">10</span>:space
<span id="L145" class="LineNr">145 </span> <span class="Constant">2</span>:space/<span class="Special">raw <- </span>copy <span class="Normal">default</span>-space:space
<span id="L146" class="LineNr">146 </span>]
<span id="L147" class="LineNr">147 </span><span class="traceContains">+mem: storing 1000 in location 3</span>
<span id="L148" class="LineNr">148 </span>
<span id="L149" class="LineNr">149 </span><span class="Delimiter">:(after "Begin Preprocess read_memory(x)")</span>
<span id="L150" class="LineNr">150 </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="L151" class="LineNr">151 </span> vector<<span class="Normal">double</span>> result<span class="Delimiter">;</span>
<span id="L152" class="LineNr">152 </span> result<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><span class="Comment">/*</span><span class="Comment">alloc id</span><span class="Comment">*/</span><span class="Constant">0</span><span class="Delimiter">);</span>
<span id="L153" class="LineNr">153 </span> result<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='026call.cc.html#L83'>current_call</a><span class="Delimiter">().</span>default_space<span class="Delimiter">);</span>
<span id="L154" class="LineNr">154 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span id="L155" class="LineNr">155 </span><span class="Delimiter">}</span>
<span id="L156" class="LineNr">156 </span>
<span id="L157" class="LineNr">157 </span><span class="SalientComment">//:: fix 'get'</span>
<span id="L158" class="LineNr">158 </span>
<span id="L159" class="LineNr">159 </span><span class="Delimiter">:(scenario lookup_sidesteps_default_space_in_get)</span>
<span id="L160" class="LineNr">160 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L161" class="LineNr">161 </span> <span class="Comment"># prepare default-space address</span>
<span id="L162" class="LineNr">162 </span> <span class="Constant">10</span>:num/alloc-id<span class="Delimiter">,</span> <span class="Constant">11</span>:num<span class="Special"> <- </span>copy <span class="Constant">0</span><span class="Delimiter">,</span> <span class="Constant">1000</span>
<span id="L163" class="LineNr">163 </span> <span class="Comment"># prepare default-space payload</span>
<span id="L164" class="LineNr">164 </span> <span class="Constant">1000</span>:num<span class="Special"> <- </span>copy <span class="Constant">0</span> <span class="Comment"># alloc id of payload</span>
<span id="L165" class="LineNr">165 </span> <span class="Constant">1001</span>:num<span class="Special"> <- </span>copy <span class="Constant">5</span> <span class="Comment"># length</span>
<span id="L166" class="LineNr">166 </span> <span class="Comment"># prepare payload outside the local scope</span>
<span id="L167" class="LineNr">167 </span> <span class="Constant">2000</span>:num/alloc-id<span class="Delimiter">,</span> <span class="Constant">2001</span>:num/x<span class="Delimiter">,</span> <span class="Constant">2002</span>:num/y<span class="Special"> <- </span>copy <span class="Constant">0</span><span class="Delimiter">,</span> <span class="Constant">34</span><span class="Delimiter">,</span> <span class="Constant">35</span>
<span id="L168" class="LineNr">168 </span> <span class="Comment"># actual start of this recipe</span>
<span id="L169" class="LineNr">169 </span> <span class="Normal">default</span>-space:space<span class="Special"> <- </span>copy <span class="Constant">10</span>:space
<span id="L170" class="LineNr">170 </span> <span class="Comment"># a local address</span>
<span id="L171" class="LineNr">171 </span> <span class="Constant">2</span>:num<span class="Delimiter">,</span> <span class="Constant">3</span>:num<span class="Special"> <- </span>copy <span class="Constant">0</span><span class="Delimiter">,</span> <span class="Constant">2000</span>
<span id="L172" class="LineNr">172 </span> <span class="Constant">3000</span>:num/<span class="Special">raw <- </span>get *<span class="Constant">2</span>:&:point<span class="Delimiter">,</span> <span class="Constant">1:offset</span>
<span id="L173" class="LineNr">173 </span>]
<span id="L174" class="LineNr">174 </span><span class="traceContains">+mem: storing 35 in location 3000</span>
<span id="L175" class="LineNr">175 </span>
<span id="L176" class="LineNr">176 </span><span class="Delimiter">:(before "Read element" following "case GET:")</span>
<span id="L177" class="LineNr">177 </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="L178" class="LineNr">178 </span>
<span id="L179" class="LineNr">179 </span><span class="SalientComment">//:: fix 'index'</span>
<span id="L180" class="LineNr">180 </span>
<span id="L181" class="LineNr">181 </span><span class="Delimiter">:(scenario lookup_sidesteps_default_space_in_index)</span>
<span id="L182" class="LineNr">182 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L183" class="LineNr">183 </span> <span class="Comment"># prepare default-space address</span>
<span id="L184" class="LineNr">184 </span> <span class="Constant">10</span>:num/alloc-id<span class="Delimiter">,</span> <span class="Constant">11</span>:num<span class="Special"> <- </span>copy <span class="Constant">0</span><span class="Delimiter">,</span> <span class="Constant">1000</span>
<span id="L185" class="LineNr">185 </span> <span class="Comment"># prepare default-space payload</span>
<span id="L186" class="LineNr">186 </span> <span class="Constant">1000</span>:num<span class="Special"> <- </span>copy <span class="Constant">0</span> <span class="Comment"># alloc id of payload</span>
<span id="L187" class="LineNr">187 </span> <span class="Constant">1001</span>:num<span class="Special"> <- </span>copy <span class="Constant">5</span> <span class="Comment"># length</span>
<span id="L188" class="LineNr">188 </span> <span class="Comment"># prepare an array address</span>
<span id="L189" class="LineNr">189 </span> <span class="Constant">20</span>:num/alloc-id<span class="Delimiter">,</span> <span class="Constant">21</span>:num<span class="Special"> <- </span>copy <span class="Constant">0</span><span class="Delimiter">,</span> <span class="Constant">2000</span>
<span id="L190" class="LineNr">190 </span> <span class="Comment"># prepare an array payload</span>
<span id="L191" class="LineNr">191 </span> <span class="Constant">2000</span>:num/alloc-id<span class="Delimiter">,</span> <span class="Constant">2001</span>:num/length<span class="Delimiter">,</span> <span class="Constant">2002</span>:num/index:<span class="Constant">0</span><span class="Delimiter">,</span> <span class="Constant">2003</span>:num/index:<span class="Constant">1</span><span class="Special"> <- </span>copy <span class="Constant">0</span><span class="Delimiter">,</span> <span class="Constant">2</span><span class="Delimiter">,</span> <span class="Constant">34</span><span class="Delimiter">,</span> <span class="Constant">35</span>
<span id="L192" class="LineNr">192 </span> <span class="Comment"># actual start of this recipe</span>
<span id="L193" class="LineNr">193 </span> <span class="Normal">default</span>-space:space<span class="Special"> <- </span>copy <span class="Constant">10</span>:&:@:location
<span id="L194" class="LineNr">194 </span> <span class="Constant">1</span>:&:@:num<span class="Special"> <- </span>copy <span class="Constant">20</span>:&:@:num/<span class="Special">raw</span>
<span id="L195" class="LineNr">195 </span> <span class="Constant">3000</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="L196" class="LineNr">196 </span>]
<span id="L197" class="LineNr">197 </span><span class="traceContains">+mem: storing 35 in location 3000</span>
<span id="L198" class="LineNr">198 </span>
<span id="L199" class="LineNr">199 </span><span class="Delimiter">:(before "Read element" following "case INDEX:")</span>
<span id="L200" class="LineNr">200 </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="L201" class="LineNr">201 </span>
<span id="L202" class="LineNr">202 </span><span class="SalientComment">//:: 'local-scope' is a convenience operation to automatically deduce</span>
<span id="L203" class="LineNr">203 </span><span class="SalientComment">//:: the amount of space to allocate in a default space with names</span>
<span id="L204" class="LineNr">204 </span>
<span id="L205" class="LineNr">205 </span><span class="Delimiter">:(scenario local_scope)</span>
<span id="L206" class="LineNr">206 </span><span class="muRecipe">def</span> <a href='000organization.cc.html#L113'>main</a> [
<span id="L207" class="LineNr">207 </span> local-scope
<span id="L208" class="LineNr">208 </span> <span class="Normal">x</span>:num<span class="Special"> <- </span>copy <span class="Constant">0</span>
<span id="L209" class="LineNr">209 </span> <span class="Normal">y</span>:num<span class="Special"> <- </span>copy <span class="Constant">3</span>
<span id="L210" class="LineNr">210 </span>]
<span id="L211" class="LineNr">211 </span><span class="Comment"># allocate space for x and y, as well as the chaining slot at indices 0 and 1</span>
<span id="L212" class="LineNr">212 </span><span class="traceContains">+mem: array length is 4</span>
<span id="L213" class="LineNr">213 </span>
<span id="L214" class="LineNr">214 </span><span class="Delimiter">:(before "End <a href='042name.cc.html#L100'>is_disqualified</a> Special-cases")</span>
<span id="L215" class="LineNr">215 </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="L216" class="LineNr">216 </span> x<span class="Delimiter">.</span>initialized =<span class="Constant"> true</span><span class="Delimiter">;</span>
<span id="L217" class="LineNr">217 </span><span class="Delimiter">:(before "End <a href='042name.cc.html#L172'>is_special_name</a> Special-cases")</span>
<span id="L218" class="LineNr">218 </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="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="Comment">// rewrite 'local-scope' to</span>
<span id="L222" class="LineNr">222 </span><span class="Comment">// ```</span>
<span id="L223" class="LineNr">223 </span><span class="Comment">// default-space:space <- new location:type, number-of-locals:literal</span>
<span id="L224" class="LineNr">224 </span><span class="Comment">// ```</span>
<span id="L225" class="LineNr">225 </span><span class="Comment">// where number-of-locals is Name[recipe][""]</span>
<span id="L226" class="LineNr">226 </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="L227" class="LineNr">227 </span> <a href='043space.cc.html#L230'>rewrite_default_space_instruction</a><span class="Delimiter">(</span>curr<span class="Delimiter">);</span>
<span id="L228" class="LineNr">228 </span><span class="Delimiter">}</span>
<span id="L229" class="LineNr">229 </span><span class="Delimiter">:(code)</span>
<span id="L230" class="LineNr">230 </span><span class="Normal">void</span> <a href='043space.cc.html#L230'>rewrite_default_space_instruction</a><span class="Delimiter">(</span>instruction& curr<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L231" class="LineNr">231 </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="L232" class="LineNr">232 </span> <a href='003trace.cc.html#L196'>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\n"</span> << end<span class="Delimiter">();</span>
<span id="L233" class="LineNr">233 </span> curr<span class="Delimiter">.</span>name = <span class="Constant">"new"</span><span class="Delimiter">;</span>
<span id="L234" class="LineNr">234 </span> <span class="Constant">curr.ingredients.push_back(reagent("location:type</span><span class="Constant">"));</span>
<span id="L235" class="LineNr">235 </span> <span class="Constant">curr.ingredients.push_back(reagent("number-of-locals:literal</span><span class="Constant">"));</span>
<span id="L236" class="LineNr">236 </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="L237" class="LineNr">237 </span> <a href='003trace.cc.html#L196'>raise</a> << <span class="Constant">"local-scope can't take any results\n"</span> << end<span class="Delimiter">();</span>
<span id="L238" class="LineNr">238 </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="L239" class="LineNr">239 </span><span class="Delimiter">}</span>
<span id="L240" class="LineNr">240 </span><span class="Delimiter">:(after "Begin Preprocess read_memory(x)")</span>
<span id="L241" class="LineNr">241 </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="L242" class="LineNr">242 </span> vector<<span class="Normal">double</span>> result<span class="Delimiter">;</span>
<span id="L243" class="LineNr">243 </span> result<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><span class="Special">Name</span>[get<span class="Delimiter">(</span><span class="Special">Recipe_ordinal</span><span class="Delimiter">,</span> <a href='026call.cc.html#L87'>current_recipe_name</a><span class="Delimiter">())</span>][<span class="Constant">""</span>]<span class="Delimiter">);</span>
<span id="L244" class="LineNr">244 </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="L245" class="LineNr">245 </span> <a href='003trace.cc.html#L196'>raise</a> << <span class="Constant">"no space allocated for default-space in <a href='010vm.cc.html#L19'>recipe</a> "</span> << <a href='026call.cc.html#L87'>current_recipe_name</a><span class="Delimiter">()</span> << <span class="Constant">"; are you using names?\n"</span> << <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
<span id="L246" class="LineNr">246 </span> <span class="Identifier">return</span> result<span class="Delimiter">;</span>
<span id="L247" class="LineNr">247 </span><span class="Delimiter">}</span>
<span id="L248" class="LineNr">248 </span><span class="Delimiter">:(after "Begin Preprocess write_memory(x, data)")</span>
<span id="L249" class="LineNr">249 </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="L250" class="LineNr">250 </span> <a href='003trace.cc.html#L196'>raise</a> << <a href='013update_operation.cc.html#L25'>maybe</a><span class="Delimiter">(</span><a href='026call.cc.html#L87'>current_recipe_name</a><span class="Delimiter">())</span> << <span class="Constant">"can't write to special name 'number-of-locals'\n"</span> << end<span class="Delimiter">();</span>
<span id="L251" class="LineNr">251 </span> <span class="Identifier">return</span><span class="Delimiter">;</span>
<span id="L252" class="LineNr">252 </span><span class="Delimiter">}</span>
<span id="L253" class="LineNr">253 </span>
<span id="L254" class="LineNr">254 </span><span class="SalientComment">//:: all recipes must set default-space one way or another</span>
<span id="L255" class="LineNr">255 </span>
<span id="L256" class="LineNr">256 </span><span class="Delimiter">:(before "End Globals")</span>
<span id="L257" class="LineNr">257 </span><span class="Normal">bool</span> <span class="Special">Hide_missing_default_space_errors</span> =<span class="Constant"> true</span><span class="Delimiter">;</span>
<span id="L258" class="LineNr">258 </span><span class="Delimiter">:(before "End Checks")</span>
<span id="L259" class="LineNr">259 </span><span class="Special">Transform</span><span class="Delimiter">.</span>push_back<span class="Delimiter">(</span><a href='043space.cc.html#L261'>check_default_space</a><span class="Delimiter">);</span> <span class="Comment">// idempotent</span>
<span id="L260" class="LineNr">260 </span><span class="Delimiter">:(code)</span>
<span id="L261" class="LineNr">261 </span><span class="Normal">void</span> <a href='043space.cc.html#L261'>check_default_space</a><span class="Delimiter">(</span><span class="Normal">const</span> <a href='010vm.cc.html#L14'>recipe_ordinal</a> r<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L262" class="LineNr">262 </span> <span class="Normal">if</span> <span class="Delimiter">(</span><span class="Special">Hide_missing_default_space_errors</span><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="L263" class="LineNr">263 </span> <span class="Normal">const</span> recipe& caller = get<span class="Delimiter">(</span><span class="Special">Recipe</span><span class="Delimiter">,</span> r<span class="Delimiter">);</span>
<span id="L264" class="LineNr">264 </span> <span class="Comment">// End check_default_space Special-cases</span>
<span id="L265" class="LineNr">265 </span> <span class="Comment">// assume recipes with only numeric addresses know what they're doing (usually tests)</span>
<span id="L266" class="LineNr">266 </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="L267" class="LineNr">267 </span> <a href='003trace.cc.html#L189'>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#L225'>end</a><span class="Delimiter">();</span>
<span id="L268" class="LineNr">268 </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="L269" class="LineNr">269 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>!starts_by_setting_default_space<span class="Delimiter">(</span>caller<span class="Delimiter">))</span>
<span id="L270" class="LineNr">270 </span> <a href='003trace.cc.html#L196'>raise</a> << caller<span class="Delimiter">.</span>name << <span class="Constant">" does not seem to start with 'local-scope' or 'default-space'\n"</span> << <a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span>
<span id="L271" class="LineNr">271 </span><span class="Delimiter">}</span>
<span id="L272" class="LineNr">272 </span><span class="Normal">bool</span> <a href='043space.cc.html#L272'>starts_by_setting_default_space</a><span class="Delimiter">(</span><span class="Normal">const</span> recipe& r<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L273" class="LineNr">273 </span> <span class="Identifier">return</span> !r<span class="Delimiter">.</span>steps<span class="Delimiter">.</span>empty<span class="Delimiter">()</span>
<span id="L274" class="LineNr">274 </span> && !r<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="L275" class="LineNr">275 </span> && r<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 id="L276" class="LineNr">276 </span><span class="Delimiter">}</span>
<span id="L277" class="LineNr">277 </span>
<span id="L278" class="LineNr">278 </span><span class="Delimiter">:(after "Load Mu Prelude")</span>
<span id="L279" class="LineNr">279 </span><span class="Special">Hide_missing_default_space_errors</span> =<span class="Constant"> false</span><span class="Delimiter">;</span>
<span id="L280" class="LineNr">280 </span><span class="Delimiter">:(after "Test Runs")</span>
<span id="L281" class="LineNr">281 </span><span class="Special">Hide_missing_default_space_errors</span> =<span class="Constant"> true</span><span class="Delimiter">;</span>
<span id="L282" class="LineNr">282 </span><span class="Delimiter">:(after "Running Main")</span>
<span id="L283" class="LineNr">283 </span><span class="Special">Hide_missing_default_space_errors</span> =<span class="Constant"> false</span><span class="Delimiter">;</span>
<span id="L284" class="LineNr">284 </span>
<span id="L285" class="LineNr">285 </span><span class="Delimiter">:(code)</span>
<span id="L286" class="LineNr">286 </span><span class="Normal">bool</span> <a href='043space.cc.html#L286'>contains_non_special_name</a><span class="Delimiter">(</span><span class="Normal">const</span> <a href='010vm.cc.html#L14'>recipe_ordinal</a> r<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L287" class="LineNr">287 </span> <span class="Normal">for</span> <span class="Delimiter">(</span>map<string<span class="Delimiter">,</span> <span class="Normal">int</span>>::iterator p = <span class="Special">Name</span>[r]<span class="Delimiter">.</span>begin<span class="Delimiter">();</span> p != <span class="Special">Name</span>[r]<span class="Delimiter">.</span><a href='003trace.cc.html#L225'>end</a><span class="Delimiter">();</span> ++p<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span id="L288" class="LineNr">288 </span> <span class="Normal">if</span> <span class="Delimiter">(</span>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="L289" class="LineNr">289 </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="L290" class="LineNr">290 </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="L291" class="LineNr">291 </span> <span class="Identifier">return</span><span class="Constant"> true</span><span class="Delimiter">;</span>
<span id="L292" class="LineNr">292 </span> <span class="Delimiter">}</span>
<span id="L293" class="LineNr">293 </span> <span class="Identifier">return</span><span class="Constant"> false</span><span class="Delimiter">;</span>
<span id="L294" class="LineNr">294 </span><span class="Delimiter">}</span>
</pre>
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