html/063list.mu.html



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<pre id='vimCodeElement'>
<span class="Comment"># A list links up multiple objects together to make them easier to manage.</span>
<span class="Comment">#</span>
<span class="Comment"># Try to make all objects in a single list of the same type, it'll help avoid bugs.</span>
<span class="Comment"># If you want to store multiple types in a single list, use an exclusive-container.</span>

container list [
  value:location
  next:address:list
]

<span class="Comment"># result:address:list &lt;- push x:location, in:address:list</span>
<span class="muRecipe">recipe</span> push [
  <span class="Identifier">default-space</span>:address:array:location<span class="Special"> &lt;- </span>new location:type, <span class="Constant">30:literal</span>
  x:location<span class="Special"> &lt;- </span><span class="Identifier">next-ingredient</span>
  in:address:list<span class="Special"> &lt;- </span><span class="Identifier">next-ingredient</span>
  result:address:list<span class="Special"> &lt;- </span>new list:type
  val:address:location<span class="Special"> &lt;- </span>get-address result:address:list/deref, value:offset
  val:address:location/deref<span class="Special"> &lt;- </span>copy x:location
  next:address:address:list<span class="Special"> &lt;- </span>get-address result:address:list/deref, next:offset
  next:address:address:list/deref<span class="Special"> &lt;- </span>copy in:address:list
  <span class="Identifier">reply</span> result:address:list
]

<span class="Comment"># result:location &lt;- first in:address:list</span>
<span class="muRecipe">recipe</span> first [
  <span class="Identifier">default-space</span>:address:array:location<span class="Special"> &lt;- </span>new location:type, <span class="Constant">30:literal</span>
  in:address:list<span class="Special"> &lt;- </span><span class="Identifier">next-ingredient</span>
  result:location<span class="Special"> &lt;- </span>get in:address:list/deref, value:offset
  <span class="Identifier">reply</span> result:location
]

<span class="Comment"># result:address:list &lt;- rest in:address:list</span>
<span class="muRecipe">recipe</span> rest [
  <span class="Identifier">default-space</span>:address:array:location<span class="Special"> &lt;- </span>new location:type, <span class="Constant">30:literal</span>
  in:address:list<span class="Special"> &lt;- </span><span class="Identifier">next-ingredient</span>
  result:address:list<span class="Special"> &lt;- </span>get in:address:list/deref, next:offset
  <span class="Identifier">reply</span> result:address:list
]

<span class="muScenario">scenario</span> list-handling [
  run [
<span class="CommentedCode">#?     $start-tracing #? 1</span>
    1:address:list<span class="Special"> &lt;- </span>copy <span class="Constant">0:literal</span>
    1:address:list<span class="Special"> &lt;- </span>push <span class="Constant">3:literal</span>, 1:address:list
    1:address:list<span class="Special"> &lt;- </span>push <span class="Constant">4:literal</span>, 1:address:list
    1:address:list<span class="Special"> &lt;- </span>push <span class="Constant">5:literal</span>, 1:address:list
    2:number<span class="Special"> &lt;- </span>first 1:address:list
    1:address:list<span class="Special"> &lt;- </span>rest 1:address:list
    3:number<span class="Special"> &lt;- </span>first 1:address:list
    1:address:list<span class="Special"> &lt;- </span>rest 1:address:list
    4:number<span class="Special"> &lt;- </span>first 1:address:list
    1:address:list<span class="Special"> &lt;- </span>rest 1:address:list
  ]
  memory-should-contain [
    1<span class="Special"> &lt;- </span>0  <span class="Comment"># empty to empty, dust to dust..</span>
    2<span class="Special"> &lt;- </span>5
    3<span class="Special"> &lt;- </span>4
    4<span class="Special"> &lt;- </span>3
  ]
]
</pre>
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