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<pre id='vimCodeElement'>
<span class="Comment">//: Spaces help isolate functions from each other. You can create them at will,</span>
<span class="Comment">//: and all addresses in arguments are implicitly based on the 'default-space'</span>
<span class="Comment">//: (unless they have the /raw property)</span>

<span class="Delimiter">:(scenario set_default_space)</span>
<span class="Comment"># if default-space is 10, and if an array of 5 locals lies from location 11 to 15 (inclusive),</span>
<span class="Comment"># then location 0 is really location 11, location 1 is really location 12, and so on.</span>
recipe main [
  <span class="Constant">10</span>:number<span class="Special"> &lt;- </span>copy <span class="Constant">5</span>:literal  <span class="Comment"># pretend array; in practice we'll use new</span>
  default-space:address:array:location<span class="Special"> &lt;- </span>copy <span class="Constant">10</span>:literal
  <span class="Constant">1</span>:number<span class="Special"> &lt;- </span>copy <span class="Constant">23</span>:literal
]
<span class="traceContains">+mem: storing 23 in location 12</span>

<span class="Delimiter">:(scenario deref_sidesteps_default_space)</span>
recipe main [
  <span class="Comment"># pretend pointer from outside</span>
  <span class="Constant">3</span>:number<span class="Special"> &lt;- </span>copy <span class="Constant">34</span>:literal
  <span class="Comment"># pretend array</span>
  <span class="Constant">1000</span>:number<span class="Special"> &lt;- </span>copy <span class="Constant">5</span>:literal
  <span class="Comment"># actual start of this function</span>
  default-space:address:array:location<span class="Special"> &lt;- </span>copy <span class="Constant">1000</span>:literal
  <span class="Constant">1</span>:address:number<span class="Special"> &lt;- </span>copy <span class="Constant">3</span>:literal
  <span class="Constant">8</span>:number/<span class="Special">raw &lt;- </span>copy <span class="Constant">1</span>:address:number/deref
]
<span class="traceContains">+mem: storing 34 in location 8</span>

<span class="Delimiter">:(before &quot;End call Fields&quot;)</span>
index_t default_space<span class="Delimiter">;</span>
<span class="Delimiter">:(replace &quot;call(recipe_number r) :running_recipe(r)&quot;)</span>
call<span class="Delimiter">(</span>recipe_number r<span class="Delimiter">)</span> :running_recipe<span class="Delimiter">(</span>r<span class="Delimiter">),</span> running_step_index<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">),</span> next_ingredient_to_process<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">),</span> default_space<span class="Delimiter">(</span><span class="Constant">0</span><span class="Delimiter">)</span> <span class="Delimiter">{}</span>

<span class="Delimiter">:(replace &quot;reagent r = x&quot; following &quot;reagent canonize(reagent x)&quot;)</span>
reagent r = absolutize<span class="Delimiter">(</span>x<span class="Delimiter">);</span>
<span class="Delimiter">:(code)</span>
reagent absolutize<span class="Delimiter">(</span>reagent x<span class="Delimiter">)</span> <span class="Delimiter">{</span>
<span class="CommentedCode">//?   if (Recipe_number.find(&quot;increment-counter&quot;) != Recipe_number.end()) //? 1</span>
<span class="CommentedCode">//?     cout &lt;&lt; &quot;AAA &quot; &lt;&lt; &quot;increment-counter/2: &quot; &lt;&lt; Recipe[Recipe_number[&quot;increment-counter&quot;]].steps.at(2).products.at(0).to_string() &lt;&lt; '\n'; //? 1</span>
<span class="CommentedCode">//?   cout &lt;&lt; &quot;absolutize &quot; &lt;&lt; x.to_string() &lt;&lt; '\n'; //? 4</span>
<span class="CommentedCode">//?   cout &lt;&lt; is_raw(x) &lt;&lt; '\n'; //? 1</span>
  if <span class="Delimiter">(</span>is_raw<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> x<span class="Delimiter">;</span>
<span class="CommentedCode">//?   cout &lt;&lt; &quot;not raw: &quot; &lt;&lt; x.to_string() &lt;&lt; '\n'; //? 1</span>
  assert<span class="Delimiter">(</span>x<span class="Delimiter">.</span>initialized<span class="Delimiter">);</span>
  reagent r = x<span class="Delimiter">;</span>
  r<span class="Delimiter">.</span>set_value<span class="Delimiter">(</span>address<span class="Delimiter">(</span>r<span class="Delimiter">.</span>value<span class="Delimiter">,</span> space_base<span class="Delimiter">(</span>r<span class="Delimiter">)));</span>
<span class="CommentedCode">//?   cout &lt;&lt; &quot;after absolutize: &quot; &lt;&lt; r.value &lt;&lt; '\n'; //? 1</span>
  r<span class="Delimiter">.</span>properties<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>pair&lt;string<span class="Delimiter">,</span> vector&lt;string&gt; &gt;<span class="Delimiter">(</span><span class="Constant">&quot;raw&quot;</span><span class="Delimiter">,</span> vector&lt;string&gt;<span class="Delimiter">()));</span>
  assert<span class="Delimiter">(</span>is_raw<span class="Delimiter">(</span>r<span class="Delimiter">));</span>
  <span class="Identifier">return</span> r<span class="Delimiter">;</span>
<span class="Delimiter">}</span>
<span class="Delimiter">:(before &quot;return result&quot; following &quot;reagent deref(reagent x)&quot;)</span>
result<span class="Delimiter">.</span>properties<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>pair&lt;string<span class="Delimiter">,</span> vector&lt;string&gt; &gt;<span class="Delimiter">(</span><span class="Constant">&quot;raw&quot;</span><span class="Delimiter">,</span> vector&lt;string&gt;<span class="Delimiter">()));</span>

<span class="SalientComment">//:: fix 'get'</span>

<span class="Delimiter">:(scenario deref_sidesteps_default_space_in_get)</span>
recipe main [
  <span class="Comment"># pretend pointer to container from outside</span>
  <span class="Constant">12</span>:number<span class="Special"> &lt;- </span>copy <span class="Constant">34</span>:literal
  <span class="Constant">13</span>:number<span class="Special"> &lt;- </span>copy <span class="Constant">35</span>:literal
  <span class="Comment"># pretend array</span>
  <span class="Constant">1000</span>:number<span class="Special"> &lt;- </span>copy <span class="Constant">5</span>:literal
  <span class="Comment"># actual start of this function</span>
  default-space:address:array:location<span class="Special"> &lt;- </span>copy <span class="Constant">1000</span>:literal
  <span class="Constant">1</span>:address:point<span class="Special"> &lt;- </span>copy <span class="Constant">12</span>:literal
  <span class="Constant">9</span>:number/<span class="Special">raw &lt;- </span>get <span class="Constant">1</span>:address:point/deref<span class="Delimiter">,</span> <span class="Constant">1</span>:offset
]
<span class="traceContains">+mem: storing 35 in location 9</span>

<span class="Delimiter">:(after &quot;reagent tmp&quot; following &quot;case GET:&quot;)</span>
tmp<span class="Delimiter">.</span>properties<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>pair&lt;string<span class="Delimiter">,</span> vector&lt;string&gt; &gt;<span class="Delimiter">(</span><span class="Constant">&quot;raw&quot;</span><span class="Delimiter">,</span> vector&lt;string&gt;<span class="Delimiter">()));</span>

<span class="SalientComment">//:: fix 'index'</span>

<span class="Delimiter">:(scenario deref_sidesteps_default_space_in_index)</span>
recipe main [
  <span class="Comment"># pretend pointer to array from outside</span>
  <span class="Constant">12</span>:number<span class="Special"> &lt;- </span>copy <span class="Constant">2</span>:literal
  <span class="Constant">13</span>:number<span class="Special"> &lt;- </span>copy <span class="Constant">34</span>:literal
  <span class="Constant">14</span>:number<span class="Special"> &lt;- </span>copy <span class="Constant">35</span>:literal
  <span class="Comment"># pretend array</span>
  <span class="Constant">1000</span>:number<span class="Special"> &lt;- </span>copy <span class="Constant">5</span>:literal
  <span class="Comment"># actual start of this function</span>
  default-space:address:array:location<span class="Special"> &lt;- </span>copy <span class="Constant">1000</span>:literal
  <span class="Constant">1</span>:address:array:number<span class="Special"> &lt;- </span>copy <span class="Constant">12</span>:literal
  <span class="Constant">9</span>:number/<span class="Special">raw &lt;- </span>index <span class="Constant">1</span>:address:array:number/deref<span class="Delimiter">,</span> <span class="Constant">1</span>:literal
]
<span class="traceContains">+mem: storing 35 in location 9</span>

<span class="Delimiter">:(after &quot;reagent tmp&quot; following &quot;case INDEX:&quot;)</span>
tmp<span class="Delimiter">.</span>properties<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>pair&lt;string<span class="Delimiter">,</span> vector&lt;string&gt; &gt;<span class="Delimiter">(</span><span class="Constant">&quot;raw&quot;</span><span class="Delimiter">,</span> vector&lt;string&gt;<span class="Delimiter">()));</span>

<span class="SalientComment">//:: helpers</span>

<span class="Delimiter">:(code)</span>
index_t space_base<span class="Delimiter">(</span>const reagent&amp; x<span class="Delimiter">)</span> <span class="Delimiter">{</span>
  <span class="Identifier">return</span> Current_routine<span class="Delimiter">-&gt;</span>calls<span class="Delimiter">.</span>front<span class="Delimiter">().</span>default_space<span class="Delimiter">;</span>
<span class="Delimiter">}</span>

index_t address<span class="Delimiter">(</span>index_t offset<span class="Delimiter">,</span> index_t base<span class="Delimiter">)</span> <span class="Delimiter">{</span>
  if <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 class="CommentedCode">//?   cout &lt;&lt; base &lt;&lt; '\n'; //? 2</span>
  if <span class="Delimiter">(</span>offset &gt;= static_cast&lt;index_t&gt;<span class="Delimiter">(</span>Memory[base]<span class="Delimiter">))</span> <span class="Delimiter">{</span>
    <span class="Comment">// todo: test</span>
    raise &lt;&lt; <span class="Constant">&quot;location &quot;</span> &lt;&lt; offset &lt;&lt; <span class="Constant">&quot; is out of bounds &quot;</span> &lt;&lt; Memory[base] &lt;&lt; <span class="cSpecial">'\n'</span><span class="Delimiter">;</span>
  <span class="Delimiter">}</span>
  <span class="Identifier">return</span> base+<span class="Constant">1</span> + offset<span class="Delimiter">;</span>
<span class="Delimiter">}</span>

<span class="Delimiter">:(after &quot;void write_memory(reagent x, vector&lt;double&gt; data)&quot;)</span>
  if <span class="Delimiter">(</span>x<span class="Delimiter">.</span>name == <span class="Constant">&quot;default-space&quot;</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
    assert<span class="Delimiter">(</span>data<span class="Delimiter">.</span>size<span class="Delimiter">()</span> == <span class="Constant">1</span><span class="Delimiter">);</span>
    Current_routine<span class="Delimiter">-&gt;</span>calls<span class="Delimiter">.</span>front<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 class="CommentedCode">//?     cout &lt;&lt; &quot;AAA &quot; &lt;&lt; Current_routine-&gt;calls.front().default_space &lt;&lt; '\n'; //? 1</span>
    <span class="Identifier">return</span><span class="Delimiter">;</span>
  <span class="Delimiter">}</span>

<span class="Delimiter">:(scenario get_default_space)</span>
recipe main [
  default-space:address:array:location<span class="Special"> &lt;- </span>copy <span class="Constant">10</span>:literal
  <span class="Constant">1</span>:number/<span class="Special">raw &lt;- </span>copy default-space:address:array:location
]
<span class="traceContains">+mem: storing 10 in location 1</span>

<span class="Delimiter">:(after &quot;vector&lt;double&gt; read_memory(reagent x)&quot;)</span>
  if <span class="Delimiter">(</span>x<span class="Delimiter">.</span>name == <span class="Constant">&quot;default-space&quot;</span><span class="Delimiter">)</span> <span class="Delimiter">{</span>
    vector&lt;double&gt; result<span class="Delimiter">;</span>
    result<span class="Delimiter">.</span>push_back<span class="Delimiter">(</span>Current_routine<span class="Delimiter">-&gt;</span>calls<span class="Delimiter">.</span>front<span class="Delimiter">().</span>default_space<span class="Delimiter">);</span>
    <span class="Identifier">return</span> result<span class="Delimiter">;</span>
  <span class="Delimiter">}</span>
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