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<pre id='vimCodeElement'>
<span class="muScenario">scenario</span> array-from-args [
run [
<span class="Constant">local-scope</span>
x:text<span class="Special"> <- </span>new-array <span class="Constant">0</span>, <span class="Constant">1</span>, <span class="Constant">2</span>
<span class="Constant">10</span>:@:char/<span class="Special">raw <- </span>copy *x
]
memory-should-contain [
<span class="Constant">10</span><span class="Special"> <- </span><span class="Constant">3</span> <span class="Comment"># array length</span>
<span class="Constant">11</span><span class="Special"> <- </span><span class="Constant">0</span>
<span class="Constant">12</span><span class="Special"> <- </span><span class="Constant">1</span>
<span class="Constant">13</span><span class="Special"> <- </span><span class="Constant">2</span>
]
]
<span class="Comment"># create an array out of a list of scalar args</span>
<span class="muRecipe">def</span> new-array<span class="muRecipe"> -> </span>result:text [
<span class="Constant">local-scope</span>
capacity:num<span class="Special"> <- </span>copy <span class="Constant">0</span>
<span class="Delimiter">{</span>
<span class="Comment"># while read curr-value</span>
curr-value:char, exists?:bool<span class="Special"> <- </span><span class="Constant">next-ingredient</span>
<span class="muControl">break-unless</span> exists?
capacity<span class="Special"> <- </span>add capacity, <span class="Constant">1</span>
<span class="muControl">loop</span>
<span class="Delimiter">}</span>
result<span class="Special"> <- </span>new <span class="Constant">character:type</span>, capacity
<span class="Constant">rewind-ingredients</span>
i:num<span class="Special"> <- </span>copy <span class="Constant">0</span>
<span class="Delimiter">{</span>
<span class="Comment"># while read curr-value</span>
done?:bool<span class="Special"> <- </span>greater-or-equal i, capacity
<span class="muControl">break-if</span> done?
curr-value:char, exists?:bool<span class="Special"> <- </span><span class="Constant">next-ingredient</span>
assert exists?, <span class="Constant">[error in rewinding ingredients to new-array]</span>
*result<span class="Special"> <- </span>put-index *result, i, curr-value
i<span class="Special"> <- </span>add i, <span class="Constant">1</span>
<span class="muControl">loop</span>
<span class="Delimiter">}</span>
<span class="muControl">return</span> result
]
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