Rebuild HTML docs.
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@@ -42,12 +42,12 @@ we can implement e.g. a function that adds new functions to the
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dictionary. However, there’s no function that does that. Adding a new
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function to the dictionary is a meta-interpreter action, you have to do
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it in Python, not Joy.</p>
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<div class="highlight-ipython2 notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">notebook_preamble</span> <span class="kn">import</span> <span class="n">D</span><span class="p">,</span> <span class="n">J</span><span class="p">,</span> <span class="n">V</span>
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<div class="highlight-ipython2 notranslate"><div class="highlight"><pre><span></span>from notebook_preamble import D, J, V
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</pre></div>
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</div>
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<section id="a-long-trace">
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<h2>A long trace<a class="headerlink" href="#a-long-trace" title="Permalink to this headline">¶</a></h2>
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<div class="highlight-ipython2 notranslate"><div class="highlight"><pre><span></span><span class="n">V</span><span class="p">(</span><span class="s1">'[23 18] average'</span><span class="p">)</span>
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<div class="highlight-ipython2 notranslate"><div class="highlight"><pre><span></span>V('[23 18] average')
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</pre></div>
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</div>
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<div class="highlight-default notranslate"><div class="highlight"><pre><span></span> <span class="o">.</span> <span class="p">[</span><span class="mi">23</span> <span class="mi">18</span><span class="p">]</span> <span class="n">average</span>
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@@ -105,30 +105,30 @@ it in Python, not Joy.</p>
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<p>An efficient <code class="docutils literal notranslate"><span class="pre">sum</span></code> function is already in the library. But for
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<code class="docutils literal notranslate"><span class="pre">size</span></code> we can use a “compiled” version hand-written in Python to speed
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up evaluation and make the trace more readable.</p>
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<div class="highlight-ipython2 notranslate"><div class="highlight"><pre><span></span><span class="kn">from</span> <span class="nn">joy.library</span> <span class="kn">import</span> <span class="n">SimpleFunctionWrapper</span>
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<span class="kn">from</span> <span class="nn">joy.utils.stack</span> <span class="kn">import</span> <span class="n">iter_stack</span>
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<div class="highlight-ipython2 notranslate"><div class="highlight"><pre><span></span>from joy.library import SimpleFunctionWrapper
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from joy.utils.stack import iter_stack
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<span class="nd">@SimpleFunctionWrapper</span>
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<span class="k">def</span> <span class="nf">size</span><span class="p">(</span><span class="n">stack</span><span class="p">):</span>
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<span class="sd">'''Return the size of the sequence on the stack.'''</span>
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<span class="n">sequence</span><span class="p">,</span> <span class="n">stack</span> <span class="o">=</span> <span class="n">stack</span>
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<span class="n">n</span> <span class="o">=</span> <span class="mi">0</span>
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<span class="k">for</span> <span class="n">_</span> <span class="ow">in</span> <span class="n">iter_stack</span><span class="p">(</span><span class="n">sequence</span><span class="p">):</span>
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<span class="n">n</span> <span class="o">+=</span> <span class="mi">1</span>
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<span class="k">return</span> <span class="n">n</span><span class="p">,</span> <span class="n">stack</span>
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@SimpleFunctionWrapper
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def size(stack):
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'''Return the size of the sequence on the stack.'''
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sequence, stack = stack
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n = 0
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for _ in iter_stack(sequence):
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n += 1
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return n, stack
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</pre></div>
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</div>
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<p>Now we replace the old version in the dictionary with the new version,
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and re-evaluate the expression.</p>
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<div class="highlight-ipython2 notranslate"><div class="highlight"><pre><span></span><span class="n">D</span><span class="p">[</span><span class="s1">'size'</span><span class="p">]</span> <span class="o">=</span> <span class="n">size</span>
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<div class="highlight-ipython2 notranslate"><div class="highlight"><pre><span></span>D['size'] = size
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</pre></div>
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</div>
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</section>
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<section id="a-shorter-trace">
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<h2>A shorter trace<a class="headerlink" href="#a-shorter-trace" title="Permalink to this headline">¶</a></h2>
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<p>You can see that <code class="docutils literal notranslate"><span class="pre">size</span></code> now executes in a single step.</p>
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<div class="highlight-ipython2 notranslate"><div class="highlight"><pre><span></span><span class="n">V</span><span class="p">(</span><span class="s1">'[23 18] average'</span><span class="p">)</span>
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<div class="highlight-ipython2 notranslate"><div class="highlight"><pre><span></span>V('[23 18] average')
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</pre></div>
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</div>
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<div class="highlight-default notranslate"><div class="highlight"><pre><span></span> <span class="o">.</span> <span class="p">[</span><span class="mi">23</span> <span class="mi">18</span><span class="p">]</span> <span class="n">average</span>
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@@ -251,7 +251,7 @@ and re-evaluate the expression.</p>
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</a>
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<br />
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<span xmlns:dct="http://purl.org/dc/terms/" property="dct:title">Thun Documentation</span> by <a xmlns:cc="http://creativecommons.org/ns#" href="https://joypy.osdn.io/" property="cc:attributionName" rel="cc:attributionURL">Simon Forman</a> is licensed under a <a rel="license" href="http://creativecommons.org/licenses/by-nc-sa/4.0/">Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License</a>.<br />Based on a work at <a xmlns:dct="http://purl.org/dc/terms/" href="https://osdn.net/projects/joypy/" rel="dct:source">https://osdn.net/projects/joypy/</a>.
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Created using <a href="http://sphinx-doc.org/">Sphinx</a> 4.3.0.
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Created using <a href="http://sphinx-doc.org/">Sphinx</a> 4.4.0.
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</div>
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</body>
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