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<pre id='vimCodeElement'>
<span id="L1" class="LineNr"> 1 </span><span class="Comment"># Example program showing that a function call can be 'paused' multiple times,</span>
<span id="L2" class="LineNr"> 2 </span><span class="Comment"># creating different continuation values.</span>
<span id="L3" class="LineNr"> 3 </span><span class="Comment">#</span>
<span id="L4" class="LineNr"> 4 </span><span class="Comment"># To run:</span>
<span id="L5" class="LineNr"> 5 </span><span class="Comment"># $ git clone <a href="https://github.com/akkartik/mu">https://github.com/akkartik/mu</a></span>
<span id="L6" class="LineNr"> 6 </span><span class="Comment"># $ cd mu</span>
<span id="L7" class="LineNr"> 7 </span><span class="Comment"># $ ./mu continuation3.mu</span>
<span id="L8" class="LineNr"> 8 </span><span class="Comment">#</span>
<span id="L9" class="LineNr"> 9 </span><span class="Comment"># Expected output:</span>
<span id="L10" class="LineNr">10 </span><span class="Comment"># caller 0</span>
<span id="L11" class="LineNr">11 </span><span class="Comment"># callee 0</span>
<span id="L12" class="LineNr">12 </span><span class="Comment"># caller 1</span>
<span id="L13" class="LineNr">13 </span><span class="Comment"># callee 1</span>
<span id="L14" class="LineNr">14 </span><span class="Comment"># caller 2</span>
<span id="L15" class="LineNr">15 </span><span class="Comment"># callee 2</span>
<span id="L16" class="LineNr">16 </span>
<span id="L17" class="LineNr">17 </span><span class="muRecipe">def</span> <a href='continuation3.mu.html#L17'>main</a> [
<span id="L18" class="LineNr">18 </span> <span class="Constant">local-scope</span>
<span id="L19" class="LineNr">19 </span> $print <span class="Constant">[caller 0]</span> <span class="Constant">10/newline</span>
<span id="L20" class="LineNr">20 </span> k:continuation <span class="Special"><-</span> <span class="muControl">call-with-continuation-mark</span> <span class="Constant">100/mark</span>, <a href='continuation3.mu.html#L27'>f</a>
<span id="L21" class="LineNr">21 </span> $print <span class="Constant">[caller 1]</span> <span class="Constant">10/newline</span>
<span id="L22" class="LineNr">22 </span> k <span class="Special"><-</span> call k
<span id="L23" class="LineNr">23 </span> $print <span class="Constant">[caller 2]</span> <span class="Constant">10/newline</span>
<span id="L24" class="LineNr">24 </span> call k
<span id="L25" class="LineNr">25 </span>]
<span id="L26" class="LineNr">26 </span>
<span id="L27" class="LineNr">27 </span><span class="muRecipe">def</span> <a href='continuation3.mu.html#L27'>f</a> [
<span id="L28" class="LineNr">28 </span> <span class="Constant">local-scope</span>
<span id="L29" class="LineNr">29 </span> $print <span class="Constant">[callee 0]</span> <span class="Constant">10/newline</span>
<span id="L30" class="LineNr">30 </span> <span class="muControl">return-continuation-until-mark</span> <span class="Constant">100/mark</span>
<span id="L31" class="LineNr">31 </span> $print <span class="Constant">[callee 1]</span> <span class="Constant">10/newline</span>
<span id="L32" class="LineNr">32 </span> <span class="muControl">return-continuation-until-mark</span> <span class="Constant">100/mark</span>
<span id="L33" class="LineNr">33 </span> $print <span class="Constant">[callee 2]</span> <span class="Constant">10/newline</span>
<span id="L34" class="LineNr">34 </span>]
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