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<pre id='vimCodeElement'>
scenario array-from-args [
run [
1:address:array:location<span class="Special"> <- </span>init-array <span class="Constant">0:literal</span>, <span class="Constant">1:literal</span>, <span class="Constant">2:literal</span>
2:array:location<span class="Special"> <- </span>copy 1:address:array:location/deref
]
memory-should-contain [
2<span class="Special"> <- </span>3 <span class="Comment"># array length</span>
3<span class="Special"> <- </span>0
4<span class="Special"> <- </span>1
5<span class="Special"> <- </span>2
]
]
<span class="Comment"># create an array out of a list of scalar args</span>
recipe init-array [
default-space:address:array:location<span class="Special"> <- </span>new location:type, <span class="Constant">30:literal</span>
capacity:number<span class="Special"> <- </span>copy <span class="Constant">0:literal</span>
<span class="Delimiter">{</span>
<span class="Comment"># while read curr-value</span>
curr-value:location, exists?:boolean<span class="Special"> <- </span>next-ingredient
<span class="Identifier">break-unless</span> exists?:boolean
capacity:number<span class="Special"> <- </span>add capacity:number, <span class="Constant">1:literal</span>
<span class="Identifier">loop</span>
<span class="Delimiter">}</span>
result:address:array:location<span class="Special"> <- </span>new location:type, capacity:number
rewind-ingredients
i:number<span class="Special"> <- </span>copy <span class="Constant">0:literal</span>
<span class="Delimiter">{</span>
<span class="Comment"># while read curr-value</span>
done?:boolean<span class="Special"> <- </span>greater-or-equal i:number, capacity:number
<span class="Identifier">break-if</span> done?:boolean
curr-value:location, exists?:boolean<span class="Special"> <- </span>next-ingredient
assert exists?:boolean, <span class="Constant">[error in rewinding ingredients to init-array]</span>
tmp:address:location<span class="Special"> <- </span>index-address result:address:array:location/deref, i:number
tmp:address:location/deref<span class="Special"> <- </span>copy curr-value:location
i:number<span class="Special"> <- </span>add i:number, <span class="Constant">1:literal</span>
<span class="Identifier">loop</span>
<span class="Delimiter">}</span>
<span class="Identifier">reply</span> result:address:array:location
]
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