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<a href="VisionEgg-module.html">Package VisionEgg</a> ::
<a href="VisionEgg.PyroApps-module.html">Package PyroApps</a> ::
Module AST_ext
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<h1 class="epydoc">Source Code for <a href="VisionEgg.PyroApps.AST_ext-module.html">Module VisionEgg.PyroApps.AST_ext</a></h1>
<pre class="py-src">
<a name="L1"></a><tt class="py-lineno"> 1</tt> <tt class="py-line"><tt class="py-comment">## Automatically adapted for numpy.oldnumeric Jun 18, 2007 by alter_code1.py</tt> </tt>
<a name="L2"></a><tt class="py-lineno"> 2</tt> <tt class="py-line"><tt class="py-comment"></tt> </tt>
<a name="L3"></a><tt class="py-lineno"> 3</tt> <tt class="py-line"><tt class="py-comment"># The Vision Egg: AST_ext</tt> </tt>
<a name="L4"></a><tt class="py-lineno"> 4</tt> <tt class="py-line"><tt class="py-comment"></tt><tt class="py-comment">#</tt> </tt>
<a name="L5"></a><tt class="py-lineno"> 5</tt> <tt class="py-line"><tt class="py-comment"></tt><tt class="py-comment"># Copyright (C) 2004 Imran S. Ali, Lachlan Dowd</tt> </tt>
<a name="L6"></a><tt class="py-lineno"> 6</tt> <tt class="py-line"><tt class="py-comment"></tt><tt class="py-comment">#</tt> </tt>
<a name="L7"></a><tt class="py-lineno"> 7</tt> <tt class="py-line"><tt class="py-comment"></tt><tt class="py-comment"># Authors: Imran S. Ali, Lachlan Dowd</tt> </tt>
<a name="L8"></a><tt class="py-lineno"> 8</tt> <tt class="py-line"><tt class="py-comment"></tt><tt class="py-comment"># URL: <http://www.visionegg.org/></tt> </tt>
<a name="L9"></a><tt class="py-lineno"> 9</tt> <tt class="py-line"><tt class="py-comment"></tt><tt class="py-comment">#</tt> </tt>
<a name="L10"></a><tt class="py-lineno"> 10</tt> <tt class="py-line"><tt class="py-comment"></tt><tt class="py-comment"># Distributed under the terms of the GNU Lesser General Public License</tt> </tt>
<a name="L11"></a><tt class="py-lineno"> 11</tt> <tt class="py-line"><tt class="py-comment"></tt><tt class="py-comment"># (LGPL). See LICENSE.TXT that came with this file.</tt> </tt>
<a name="L12"></a><tt class="py-lineno"> 12</tt> <tt class="py-line"><tt class="py-comment"></tt><tt class="py-comment">#</tt> </tt>
<a name="L13"></a><tt class="py-lineno"> 13</tt> <tt class="py-line"><tt class="py-comment"></tt><tt class="py-comment"># $Id$</tt> </tt>
<a name="L14"></a><tt class="py-lineno"> 14</tt> <tt class="py-line"><tt class="py-comment"></tt> </tt>
<a name="L15"></a><tt class="py-lineno"> 15</tt> <tt class="py-line"><tt class="py-comment"># This "AST extensions" module works for Python 2.2.1</tt> </tt>
<a name="L16"></a><tt class="py-lineno"> 16</tt> <tt class="py-line"><tt class="py-comment"></tt><tt class="py-comment"># Because the structure of code trees changes with different Python versions, this module may not work with some</tt> </tt>
<a name="L17"></a><tt class="py-lineno"> 17</tt> <tt class="py-line"><tt class="py-comment"></tt><tt class="py-comment"># previous Python releases, or future releases.</tt> </tt>
<a name="L18"></a><tt class="py-lineno"> 18</tt> <tt class="py-line"><tt class="py-comment"></tt> </tt>
<a name="L19"></a><tt class="py-lineno"> 19</tt> <tt class="py-line"><tt class="py-keyword">import</tt> <tt class="py-name">pprint</tt> </tt>
<a name="L20"></a><tt class="py-lineno"> 20</tt> <tt class="py-line"><tt class="py-keyword">import</tt> <tt class="py-name">parser</tt> </tt>
<a name="L21"></a><tt class="py-lineno"> 21</tt> <tt class="py-line"><tt class="py-keyword">import</tt> <tt class="py-name">symbol</tt> </tt>
<a name="L22"></a><tt class="py-lineno"> 22</tt> <tt class="py-line"><tt class="py-keyword">import</tt> <tt class="py-name">token</tt> </tt>
<a name="L23"></a><tt class="py-lineno"> 23</tt> <tt class="py-line"><tt class="py-keyword">import</tt> <tt class="py-name">tokenize</tt> </tt>
<a name="L24"></a><tt class="py-lineno"> 24</tt> <tt class="py-line"><tt class="py-keyword">import</tt> <tt class="py-name">sys</tt> </tt>
<a name="L25"></a><tt class="py-lineno"> 25</tt> <tt class="py-line"> </tt>
<a name="L26"></a><tt class="py-lineno"> 26</tt> <tt class="py-line"><tt class="py-comment"># Hopefully, the node ID numbers in the name sequence is all that</tt> </tt>
<a name="L27"></a><tt class="py-lineno"> 27</tt> <tt class="py-line"><tt class="py-comment"></tt><tt class="py-comment"># needs to be changed in order to get this module working with</tt> </tt>
<a name="L28"></a><tt class="py-lineno"> 28</tt> <tt class="py-line"><tt class="py-comment"></tt><tt class="py-comment"># different Python release versions.</tt> </tt>
<a name="L29"></a><tt class="py-lineno"> 29</tt> <tt class="py-line"><tt class="py-comment"></tt> </tt>
<a name="L30"></a><tt class="py-lineno"> 30</tt> <tt class="py-line"><tt id="link-0" class="py-name" targets="Variable VisionEgg.PyroApps.AST_ext.name_sequence=VisionEgg.PyroApps.AST_ext-module.html#name_sequence"><a title="VisionEgg.PyroApps.AST_ext.name_sequence" class="py-name" href="#" onclick="return doclink('link-0', 'name_sequence', 'link-0');">name_sequence</a></tt> <tt class="py-op">=</tt> <tt class="py-op">[</tt><tt class="py-number">292</tt><tt class="py-op">,</tt> <tt class="py-number">293</tt><tt class="py-op">,</tt> <tt class="py-number">294</tt><tt class="py-op">,</tt> <tt class="py-number">295</tt><tt class="py-op">,</tt> <tt class="py-number">297</tt><tt class="py-op">,</tt> <tt class="py-number">298</tt><tt class="py-op">,</tt> <tt class="py-number">299</tt><tt class="py-op">,</tt> <tt class="py-number">300</tt><tt class="py-op">,</tt> <tt class="py-number">301</tt><tt class="py-op">,</tt> <tt class="py-number">302</tt><tt class="py-op">,</tt> </tt>
<a name="L31"></a><tt class="py-lineno"> 31</tt> <tt class="py-line"><tt class="py-number">303</tt><tt class="py-op">,</tt> <tt class="py-number">304</tt><tt class="py-op">,</tt> <tt class="py-number">305</tt><tt class="py-op">]</tt> </tt>
<a name="L32"></a><tt class="py-lineno"> 32</tt> <tt class="py-line"> </tt>
<a name="L33"></a><tt class="py-lineno"> 33</tt> <tt class="py-line"><tt class="py-comment"># Method for generating an AST sub tree (in list form) suitable for a</tt> </tt>
<a name="gen_assign_val_subtree"></a><div id="gen_assign_val_subtree-def"><a name="L34"></a><tt class="py-lineno"> 34</tt> <a class="py-toggle" href="#" id="gen_assign_val_subtree-toggle" onclick="return toggle('gen_assign_val_subtree');">-</a><tt class="py-line"><tt class="py-comment"></tt><tt class="py-keyword">def</tt> <a class="py-def-name" href="VisionEgg.PyroApps.AST_ext-module.html#gen_assign_val_subtree">gen_assign_val_subtree</a><tt class="py-op">(</tt><tt class="py-param">assign_val</tt><tt class="py-op">,</tt> <tt class="py-param">assign_val_type</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="gen_assign_val_subtree-collapsed" style="display:none;" pad="+++" indent="++++"></div><div id="gen_assign_val_subtree-expanded"><a name="L35"></a><tt class="py-lineno"> 35</tt> <tt class="py-line"> <tt id="link-1" class="py-name"><a title="VisionEgg.PyroApps.AST_ext.name_sequence" class="py-name" href="#" onclick="return doclink('link-1', 'name_sequence', 'link-0');">name_sequence</a></tt><tt class="py-op">.</tt><tt class="py-name">reverse</tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L36"></a><tt class="py-lineno"> 36</tt> <tt class="py-line"> <tt class="py-name">sublist</tt> <tt class="py-op">=</tt> <tt class="py-op">[</tt><tt class="py-op">]</tt> </tt>
<a name="L37"></a><tt class="py-lineno"> 37</tt> <tt class="py-line"> <tt class="py-keyword">if</tt> <tt class="py-name">assign_val_type</tt> <tt class="py-op">==</tt> <tt class="py-number">2</tt><tt class="py-op">:</tt> </tt>
<a name="L38"></a><tt class="py-lineno"> 38</tt> <tt class="py-line"> <tt class="py-name">sublist</tt> <tt class="py-op">=</tt> <tt class="py-op">[</tt><tt class="py-number">2</tt><tt class="py-op">,</tt> <tt class="py-string">'%(assign_val)d'</tt> <tt class="py-op">%</tt> <tt class="py-name">vars</tt><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">]</tt> </tt>
<a name="L39"></a><tt class="py-lineno"> 39</tt> <tt class="py-line"> <tt class="py-keyword">elif</tt> <tt class="py-name">assign_val_type</tt> <tt class="py-op">==</tt> <tt class="py-number">1</tt><tt class="py-op">:</tt> </tt>
<a name="L40"></a><tt class="py-lineno"> 40</tt> <tt class="py-line"> <tt class="py-name">sublist</tt> <tt class="py-op">=</tt> <tt class="py-op">[</tt><tt class="py-number">2</tt><tt class="py-op">,</tt> <tt class="py-string">'%(assign_val)f'</tt> <tt class="py-op">%</tt> <tt class="py-name">vars</tt><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">]</tt> </tt>
<a name="L41"></a><tt class="py-lineno"> 41</tt> <tt class="py-line"> <tt class="py-keyword">elif</tt> <tt class="py-name">assign_val_type</tt> <tt class="py-op">==</tt> <tt class="py-number">3</tt><tt class="py-op">:</tt> </tt>
<a name="L42"></a><tt class="py-lineno"> 42</tt> <tt class="py-line"> <tt class="py-name">sublist</tt> <tt class="py-op">=</tt> <tt class="py-op">[</tt><tt class="py-number">3</tt><tt class="py-op">,</tt> <tt class="py-string">'"%(assign_val)s"'</tt> <tt class="py-op">%</tt> <tt class="py-name">vars</tt><tt class="py-op">(</tt><tt class="py-op">)</tt><tt class="py-op">]</tt> </tt>
<a name="L43"></a><tt class="py-lineno"> 43</tt> <tt class="py-line"> <tt class="py-keyword">for</tt> <tt class="py-name">val</tt> <tt class="py-keyword">in</tt> <tt id="link-2" class="py-name"><a title="VisionEgg.PyroApps.AST_ext.name_sequence" class="py-name" href="#" onclick="return doclink('link-2', 'name_sequence', 'link-0');">name_sequence</a></tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">:</tt><tt class="py-name">len</tt><tt class="py-op">(</tt><tt id="link-3" class="py-name"><a title="VisionEgg.PyroApps.AST_ext.name_sequence" class="py-name" href="#" onclick="return doclink('link-3', 'name_sequence', 'link-0');">name_sequence</a></tt><tt class="py-op">)</tt> <tt class="py-op">-</tt> <tt class="py-number">1</tt><tt class="py-op">]</tt><tt class="py-op">:</tt> </tt>
<a name="L44"></a><tt class="py-lineno"> 44</tt> <tt class="py-line"> <tt class="py-name">sublist</tt> <tt class="py-op">=</tt> <tt class="py-op">[</tt><tt class="py-name">val</tt><tt class="py-op">,</tt> <tt class="py-name">sublist</tt><tt class="py-op">]</tt> </tt>
<a name="L45"></a><tt class="py-lineno"> 45</tt> <tt class="py-line"> <tt id="link-4" class="py-name"><a title="VisionEgg.PyroApps.AST_ext.name_sequence" class="py-name" href="#" onclick="return doclink('link-4', 'name_sequence', 'link-0');">name_sequence</a></tt><tt class="py-op">.</tt><tt class="py-name">reverse</tt><tt class="py-op">(</tt><tt class="py-op">)</tt> </tt>
<a name="L46"></a><tt class="py-lineno"> 46</tt> <tt class="py-line"> <tt class="py-keyword">return</tt> <tt class="py-name">sublist</tt> </tt>
</div><a name="L47"></a><tt class="py-lineno"> 47</tt> <tt class="py-line"> </tt>
<a name="L48"></a><tt class="py-lineno"> 48</tt> <tt class="py-line"> </tt>
<a name="AST_Visitor"></a><div id="AST_Visitor-def"><a name="L49"></a><tt class="py-lineno"> 49</tt> <a class="py-toggle" href="#" id="AST_Visitor-toggle" onclick="return toggle('AST_Visitor');">-</a><tt class="py-line"><tt class="py-keyword">class</tt> <a class="py-def-name" href="VisionEgg.PyroApps.AST_ext.AST_Visitor-class.html">AST_Visitor</a><tt class="py-op">:</tt> </tt>
</div><div id="AST_Visitor-collapsed" style="display:none;" pad="+++" indent="++++"></div><div id="AST_Visitor-expanded"><a name="AST_Visitor.__init__"></a><div id="AST_Visitor.__init__-def"><a name="L50"></a><tt class="py-lineno"> 50</tt> <a class="py-toggle" href="#" id="AST_Visitor.__init__-toggle" onclick="return toggle('AST_Visitor.__init__');">-</a><tt class="py-line"> <tt class="py-keyword">def</tt> <a class="py-def-name" href="VisionEgg.PyroApps.AST_ext.AST_Visitor-class.html#__init__">__init__</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">modifying_AST</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="AST_Visitor.__init__-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="AST_Visitor.__init__-expanded"><a name="L51"></a><tt class="py-lineno"> 51</tt> <tt class="py-line"> <tt class="py-comment"># Flags:</tt> </tt>
<a name="L52"></a><tt class="py-lineno"> 52</tt> <tt class="py-line"><tt class="py-comment"></tt> </tt>
<a name="L53"></a><tt class="py-lineno"> 53</tt> <tt class="py-line"> <tt class="py-comment"># Checking assignment name (ie. "x = ..." where we are</tt> </tt>
<a name="L54"></a><tt class="py-lineno"> 54</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-comment"># checking if 'x' == 'assign_name'):</tt> </tt>
<a name="L55"></a><tt class="py-lineno"> 55</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">checking_assign_name</tt> <tt class="py-op">=</tt> <tt class="py-number">0</tt> </tt>
<a name="L56"></a><tt class="py-lineno"> 56</tt> <tt class="py-line"> </tt>
<a name="L57"></a><tt class="py-lineno"> 57</tt> <tt class="py-line"> <tt class="py-comment"># Setting assignment value (we are changing a found occurrence</tt> </tt>
<a name="L58"></a><tt class="py-lineno"> 58</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-comment"># of "assign_name = x" to "assign_name = assign_val"):</tt> </tt>
<a name="L59"></a><tt class="py-lineno"> 59</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">setting_assign_val</tt> <tt class="py-op">=</tt> <tt class="py-number">0</tt> </tt>
<a name="L60"></a><tt class="py-lineno"> 60</tt> <tt class="py-line"> </tt>
<a name="L61"></a><tt class="py-lineno"> 61</tt> <tt class="py-line"> <tt class="py-comment"># Index of where the AST visitor is currently at in the</tt> </tt>
<a name="L62"></a><tt class="py-lineno"> 62</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-comment"># 'name_sequence' defined earlier:</tt> </tt>
<a name="L63"></a><tt class="py-lineno"> 63</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">name_seq_index</tt> <tt class="py-op">=</tt> <tt class="py-number">0</tt> </tt>
<a name="L64"></a><tt class="py-lineno"> 64</tt> <tt class="py-line"> </tt>
<a name="L65"></a><tt class="py-lineno"> 65</tt> <tt class="py-line"> <tt class="py-comment"># AST visitor expects a subtree associated with</tt> </tt>
<a name="L66"></a><tt class="py-lineno"> 66</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-comment"># assignment/"=":</tt> </tt>
<a name="L67"></a><tt class="py-lineno"> 67</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">expecting_equals</tt> <tt class="py-op">=</tt> <tt class="py-number">0</tt> </tt>
<a name="L68"></a><tt class="py-lineno"> 68</tt> <tt class="py-line"> </tt>
<a name="L69"></a><tt class="py-lineno"> 69</tt> <tt class="py-line"> <tt class="py-comment"># Extracting assignment value (we are extracting the 'x' from</tt> </tt>
<a name="L70"></a><tt class="py-lineno"> 70</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-comment"># a found occurrence of "assign_name = x"):</tt> </tt>
<a name="L71"></a><tt class="py-lineno"> 71</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">extracting_assign_val</tt> <tt class="py-op">=</tt> <tt class="py-number">0</tt> </tt>
<a name="L72"></a><tt class="py-lineno"> 72</tt> <tt class="py-line"> </tt>
<a name="L73"></a><tt class="py-lineno"> 73</tt> <tt class="py-line"> <tt class="py-comment"># Extracted assignment value:</tt> </tt>
<a name="L74"></a><tt class="py-lineno"> 74</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">extracted_val</tt> <tt class="py-op">=</tt> <tt class="py-string">"not found"</tt> </tt>
<a name="L75"></a><tt class="py-lineno"> 75</tt> <tt class="py-line"> </tt>
<a name="L76"></a><tt class="py-lineno"> 76</tt> <tt class="py-line"> <tt class="py-comment"># Are we modifying an AST? Otherwise we're extracting</tt> </tt>
<a name="L77"></a><tt class="py-lineno"> 77</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-comment"># information from an AST:</tt> </tt>
<a name="L78"></a><tt class="py-lineno"> 78</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">modifying_AST</tt> <tt class="py-op">=</tt> <tt class="py-name">modifying_AST</tt> </tt>
</div><a name="L79"></a><tt class="py-lineno"> 79</tt> <tt class="py-line"> </tt>
<a name="AST_Visitor.traverse"></a><div id="AST_Visitor.traverse-def"><a name="L80"></a><tt class="py-lineno"> 80</tt> <a class="py-toggle" href="#" id="AST_Visitor.traverse-toggle" onclick="return toggle('AST_Visitor.traverse');">-</a><tt class="py-line"> <tt class="py-keyword">def</tt> <a class="py-def-name" href="VisionEgg.PyroApps.AST_ext.AST_Visitor-class.html#traverse">traverse</a><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">AST_sublist</tt><tt class="py-op">,</tt> <tt class="py-param">assign_name</tt><tt class="py-op">,</tt> <tt class="py-param">assign_val_subtree</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="AST_Visitor.traverse-collapsed" style="display:none;" pad="+++" indent="++++++++"></div><div id="AST_Visitor.traverse-expanded"><a name="L81"></a><tt class="py-lineno"> 81</tt> <tt class="py-line"> </tt>
<a name="L82"></a><tt class="py-lineno"> 82</tt> <tt class="py-line"> <tt class="py-comment"># If we have a single element (terminating leaf node):</tt> </tt>
<a name="L83"></a><tt class="py-lineno"> 83</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-keyword">if</tt> <tt class="py-name">type</tt><tt class="py-op">(</tt><tt class="py-name">AST_sublist</tt><tt class="py-op">)</tt> <tt class="py-op">!=</tt> <tt class="py-name">list</tt><tt class="py-op">:</tt> </tt>
<a name="L84"></a><tt class="py-lineno"> 84</tt> <tt class="py-line"> <tt class="py-keyword">return</tt> <tt class="py-name">AST_sublist</tt> </tt>
<a name="L85"></a><tt class="py-lineno"> 85</tt> <tt class="py-line"> </tt>
<a name="L86"></a><tt class="py-lineno"> 86</tt> <tt class="py-line"> <tt class="py-comment"># If we have a sub tree of the form [x, [....]]:</tt> </tt>
<a name="L87"></a><tt class="py-lineno"> 87</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-keyword">elif</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">AST_sublist</tt><tt class="py-op">)</tt> <tt class="py-op">==</tt> <tt class="py-number">2</tt><tt class="py-op">:</tt> </tt>
<a name="L88"></a><tt class="py-lineno"> 88</tt> <tt class="py-line"> </tt>
<a name="L89"></a><tt class="py-lineno"> 89</tt> <tt class="py-line"> <tt class="py-comment"># If we are somewhere in the 'name_sequence' defined</tt> </tt>
<a name="L90"></a><tt class="py-lineno"> 90</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-comment"># earlier: [292, [293, [294, [295, [297, [298, [299, [300,</tt> </tt>
<a name="L91"></a><tt class="py-lineno"> 91</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-comment"># [301, [302, [303, [304, [305, ...</tt> </tt>
<a name="L92"></a><tt class="py-lineno"> 92</tt> <tt class="py-line"><tt class="py-comment"></tt> </tt>
<a name="L93"></a><tt class="py-lineno"> 93</tt> <tt class="py-line"> <tt class="py-keyword">if</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">name_seq_index</tt> <tt class="py-op">></tt> <tt class="py-number">0</tt><tt class="py-op">:</tt> </tt>
<a name="L94"></a><tt class="py-lineno"> 94</tt> <tt class="py-line"> <tt class="py-comment"># If we are at the end of the 'name_sequence':</tt> </tt>
<a name="L95"></a><tt class="py-lineno"> 95</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-keyword">if</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">name_seq_index</tt> <tt class="py-op">==</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt id="link-5" class="py-name"><a title="VisionEgg.PyroApps.AST_ext.name_sequence" class="py-name" href="#" onclick="return doclink('link-5', 'name_sequence', 'link-0');">name_sequence</a></tt><tt class="py-op">)</tt> <tt class="py-op">-</tt> <tt class="py-number">1</tt> <tt class="py-keyword">and</tt> <tt class="py-name">AST_sublist</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">]</tt> <tt class="py-op">==</tt> <tt id="link-6" class="py-name"><a title="VisionEgg.PyroApps.AST_ext.name_sequence" class="py-name" href="#" onclick="return doclink('link-6', 'name_sequence', 'link-0');">name_sequence</a></tt><tt class="py-op">[</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">name_seq_index</tt><tt class="py-op">]</tt><tt class="py-op">:</tt> </tt>
<a name="L96"></a><tt class="py-lineno"> 96</tt> <tt class="py-line"> <tt class="py-keyword">if</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">AST_sublist</tt><tt class="py-op">[</tt><tt class="py-number">1</tt><tt class="py-op">]</tt><tt class="py-op">)</tt> <tt class="py-op">==</tt> <tt class="py-number">3</tt><tt class="py-op">:</tt> </tt>
<a name="L97"></a><tt class="py-lineno"> 97</tt> <tt class="py-line"> <tt class="py-keyword">if</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">extracting_assign_val</tt> <tt class="py-op">==</tt> <tt class="py-number">1</tt><tt class="py-op">:</tt> </tt>
<a name="L98"></a><tt class="py-lineno"> 98</tt> <tt class="py-line"> <tt class="py-name">extracted_val</tt> <tt class="py-op">=</tt> <tt class="py-name">AST_sublist</tt><tt class="py-op">[</tt><tt class="py-number">1</tt><tt class="py-op">]</tt><tt class="py-op">[</tt><tt class="py-number">1</tt><tt class="py-op">]</tt> </tt>
<a name="L99"></a><tt class="py-lineno"> 99</tt> <tt class="py-line"> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">extracted_val</tt> <tt class="py-op">=</tt> <tt class="py-name">extracted_val</tt> </tt>
<a name="L100"></a><tt class="py-lineno">100</tt> <tt class="py-line"> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">extracting_assign_val</tt> <tt class="py-op">=</tt> <tt class="py-number">0</tt> </tt>
<a name="L101"></a><tt class="py-lineno">101</tt> <tt class="py-line"> <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L102"></a><tt class="py-lineno">102</tt> <tt class="py-line"> <tt class="py-comment"># Enter new mode: AST visitor will check</tt> </tt>
<a name="L103"></a><tt class="py-lineno">103</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-comment"># the name associated with the</tt> </tt>
<a name="L104"></a><tt class="py-lineno">104</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-comment"># 'name_sequence' to see if it will match</tt> </tt>
<a name="L105"></a><tt class="py-lineno">105</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-comment"># 'assign_name':</tt> </tt>
<a name="L106"></a><tt class="py-lineno">106</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">checking_assign_name</tt> <tt class="py-op">=</tt> <tt class="py-number">1</tt> </tt>
<a name="L107"></a><tt class="py-lineno">107</tt> <tt class="py-line"> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">name_seq_index</tt> <tt class="py-op">=</tt> <tt class="py-number">0</tt> </tt>
<a name="L108"></a><tt class="py-lineno">108</tt> <tt class="py-line"> </tt>
<a name="L109"></a><tt class="py-lineno">109</tt> <tt class="py-line"> <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L110"></a><tt class="py-lineno">110</tt> <tt class="py-line"> <tt class="py-name">expected_val</tt> <tt class="py-op">=</tt> <tt id="link-7" class="py-name"><a title="VisionEgg.PyroApps.AST_ext.name_sequence" class="py-name" href="#" onclick="return doclink('link-7', 'name_sequence', 'link-0');">name_sequence</a></tt><tt class="py-op">[</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">name_seq_index</tt><tt class="py-op">]</tt> </tt>
<a name="L111"></a><tt class="py-lineno">111</tt> <tt class="py-line"> <tt class="py-keyword">if</tt> <tt class="py-name">AST_sublist</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">]</tt> <tt class="py-op">==</tt> <tt class="py-name">expected_val</tt><tt class="py-op">:</tt> </tt>
<a name="L112"></a><tt class="py-lineno">112</tt> <tt class="py-line"> <tt class="py-comment"># Update position in 'name_sequence':</tt> </tt>
<a name="L113"></a><tt class="py-lineno">113</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">name_seq_index</tt> <tt class="py-op">=</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">name_seq_index</tt> <tt class="py-op">+</tt> <tt class="py-number">1</tt> </tt>
<a name="L114"></a><tt class="py-lineno">114</tt> <tt class="py-line"> <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L115"></a><tt class="py-lineno">115</tt> <tt class="py-line"> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">name_seq_index</tt> <tt class="py-op">=</tt> <tt class="py-number">0</tt> </tt>
<a name="L116"></a><tt class="py-lineno">116</tt> <tt class="py-line"> <tt class="py-keyword">return</tt> <tt class="py-name">AST_sublist</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">:</tt><tt class="py-number">1</tt><tt class="py-op">]</tt> <tt class="py-op">+</tt> <tt class="py-op">[</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-8" class="py-name" targets="Method VisionEgg.PyroApps.AST_ext.AST_Visitor.traverse()=VisionEgg.PyroApps.AST_ext.AST_Visitor-class.html#traverse"><a title="VisionEgg.PyroApps.AST_ext.AST_Visitor.traverse" class="py-name" href="#" onclick="return doclink('link-8', 'traverse', 'link-8');">traverse</a></tt><tt class="py-op">(</tt><tt class="py-name">AST_sublist</tt><tt class="py-op">[</tt><tt class="py-number">1</tt><tt class="py-op">]</tt><tt class="py-op">,</tt> <tt class="py-name">assign_name</tt><tt class="py-op">,</tt> <tt class="py-name">assign_val_subtree</tt><tt class="py-op">)</tt><tt class="py-op">]</tt> </tt>
<a name="L117"></a><tt class="py-lineno">117</tt> <tt class="py-line"> </tt>
<a name="L118"></a><tt class="py-lineno">118</tt> <tt class="py-line"> <tt class="py-comment"># Else we are in some arbitrary sequence:</tt> </tt>
<a name="L119"></a><tt class="py-lineno">119</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-comment"># [a, [b, [c, [d, [e, [...</tt> </tt>
<a name="L120"></a><tt class="py-lineno">120</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L121"></a><tt class="py-lineno">121</tt> <tt class="py-line"> <tt class="py-comment"># If we are at the start of the 'name_sequence':</tt> </tt>
<a name="L122"></a><tt class="py-lineno">122</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-keyword">if</tt> <tt class="py-name">AST_sublist</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">]</tt> <tt class="py-op">==</tt> <tt class="py-number">292</tt><tt class="py-op">:</tt> </tt>
<a name="L123"></a><tt class="py-lineno">123</tt> <tt class="py-line"> <tt class="py-keyword">if</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">setting_assign_val</tt> <tt class="py-op">==</tt> <tt class="py-number">1</tt><tt class="py-op">:</tt> </tt>
<a name="L124"></a><tt class="py-lineno">124</tt> <tt class="py-line"> <tt class="py-name">AST_sublist</tt><tt class="py-op">[</tt><tt class="py-number">1</tt><tt class="py-op">]</tt> <tt class="py-op">=</tt> <tt class="py-name">assign_val_subtree</tt> </tt>
<a name="L125"></a><tt class="py-lineno">125</tt> <tt class="py-line"> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">setting_assign_val</tt> <tt class="py-op">=</tt> <tt class="py-number">0</tt> </tt>
<a name="L126"></a><tt class="py-lineno">126</tt> <tt class="py-line"> <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L127"></a><tt class="py-lineno">127</tt> <tt class="py-line"> <tt class="py-comment"># Enter new mode: AST visitor will check to</tt> </tt>
<a name="L128"></a><tt class="py-lineno">128</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-comment"># see if we are progressing through the</tt> </tt>
<a name="L129"></a><tt class="py-lineno">129</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-comment"># 'name_sequence' defined earlier:</tt> </tt>
<a name="L130"></a><tt class="py-lineno">130</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">name_seq_index</tt> <tt class="py-op">=</tt> <tt class="py-number">1</tt> </tt>
<a name="L131"></a><tt class="py-lineno">131</tt> <tt class="py-line"> <tt class="py-keyword">return</tt> <tt class="py-name">AST_sublist</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">:</tt><tt class="py-number">1</tt><tt class="py-op">]</tt> <tt class="py-op">+</tt> <tt class="py-op">[</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-9" class="py-name"><a title="VisionEgg.PyroApps.AST_ext.AST_Visitor.traverse" class="py-name" href="#" onclick="return doclink('link-9', 'traverse', 'link-8');">traverse</a></tt><tt class="py-op">(</tt><tt class="py-name">AST_sublist</tt><tt class="py-op">[</tt><tt class="py-number">1</tt><tt class="py-op">]</tt><tt class="py-op">,</tt> <tt class="py-name">assign_name</tt><tt class="py-op">,</tt> <tt class="py-name">assign_val_subtree</tt><tt class="py-op">)</tt><tt class="py-op">]</tt> </tt>
<a name="L132"></a><tt class="py-lineno">132</tt> <tt class="py-line"> <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L133"></a><tt class="py-lineno">133</tt> <tt class="py-line"> <tt class="py-keyword">return</tt> <tt class="py-name">AST_sublist</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">:</tt><tt class="py-number">1</tt><tt class="py-op">]</tt> <tt class="py-op">+</tt> <tt class="py-op">[</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-10" class="py-name"><a title="VisionEgg.PyroApps.AST_ext.AST_Visitor.traverse" class="py-name" href="#" onclick="return doclink('link-10', 'traverse', 'link-8');">traverse</a></tt><tt class="py-op">(</tt><tt class="py-name">AST_sublist</tt><tt class="py-op">[</tt><tt class="py-number">1</tt><tt class="py-op">]</tt><tt class="py-op">,</tt> <tt class="py-name">assign_name</tt><tt class="py-op">,</tt> <tt class="py-name">assign_val_subtree</tt><tt class="py-op">)</tt><tt class="py-op">]</tt> </tt>
<a name="L134"></a><tt class="py-lineno">134</tt> <tt class="py-line"> </tt>
<a name="L135"></a><tt class="py-lineno">135</tt> <tt class="py-line"> <tt class="py-comment"># If we have a sub tree with 3 parent nodes:</tt> </tt>
<a name="L136"></a><tt class="py-lineno">136</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-keyword">elif</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt class="py-name">AST_sublist</tt><tt class="py-op">)</tt> <tt class="py-op">==</tt> <tt class="py-number">3</tt><tt class="py-op">:</tt> </tt>
<a name="L137"></a><tt class="py-lineno">137</tt> <tt class="py-line"> </tt>
<a name="L138"></a><tt class="py-lineno">138</tt> <tt class="py-line"> <tt class="py-comment"># If the second parent node is a single element</tt> </tt>
<a name="L139"></a><tt class="py-lineno">139</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-comment"># (terminating leaf node):</tt> </tt>
<a name="L140"></a><tt class="py-lineno">140</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-keyword">if</tt> <tt class="py-name">type</tt><tt class="py-op">(</tt><tt class="py-name">AST_sublist</tt><tt class="py-op">[</tt><tt class="py-number">1</tt><tt class="py-op">]</tt><tt class="py-op">)</tt> <tt class="py-op">!=</tt> <tt class="py-name">list</tt><tt class="py-op">:</tt> </tt>
<a name="L141"></a><tt class="py-lineno">141</tt> <tt class="py-line"> <tt class="py-comment"># If the current AST visitor mode is set to checking</tt> </tt>
<a name="L142"></a><tt class="py-lineno">142</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-comment"># for equality with "assign_name" (ie. "x = ..." where</tt> </tt>
<a name="L143"></a><tt class="py-lineno">143</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-comment"># we are checking if 'x' == 'assign_name')::</tt> </tt>
<a name="L144"></a><tt class="py-lineno">144</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-keyword">if</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">checking_assign_name</tt> <tt class="py-op">==</tt> <tt class="py-number">1</tt><tt class="py-op">:</tt> </tt>
<a name="L145"></a><tt class="py-lineno">145</tt> <tt class="py-line"> <tt class="py-comment"># If 'x' == 'assign_name' (see above):</tt> </tt>
<a name="L146"></a><tt class="py-lineno">146</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-keyword">if</tt> <tt class="py-name">AST_sublist</tt><tt class="py-op">[</tt><tt class="py-number">1</tt><tt class="py-op">]</tt> <tt class="py-op">==</tt> <tt class="py-name">assign_name</tt><tt class="py-op">:</tt> </tt>
<a name="L147"></a><tt class="py-lineno">147</tt> <tt class="py-line"> <tt class="py-comment"># Enter new mode: AST visitor will check to</tt> </tt>
<a name="L148"></a><tt class="py-lineno">148</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-comment"># see if the current sub tree is associated</tt> </tt>
<a name="L149"></a><tt class="py-lineno">149</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-comment"># with assignment/"=":</tt> </tt>
<a name="L150"></a><tt class="py-lineno">150</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">expecting_equals</tt> <tt class="py-op">=</tt> <tt class="py-number">1</tt> </tt>
<a name="L151"></a><tt class="py-lineno">151</tt> <tt class="py-line"> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">checking_assign_name</tt> <tt class="py-op">=</tt> <tt class="py-number">0</tt> </tt>
<a name="L152"></a><tt class="py-lineno">152</tt> <tt class="py-line"> </tt>
<a name="L153"></a><tt class="py-lineno">153</tt> <tt class="py-line"> <tt class="py-comment"># If the current AST visitor mode is set to check if</tt> </tt>
<a name="L154"></a><tt class="py-lineno">154</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-comment"># the current sub tree is associated with</tt> </tt>
<a name="L155"></a><tt class="py-lineno">155</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-comment"># assignment/"=":</tt> </tt>
<a name="L156"></a><tt class="py-lineno">156</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-keyword">elif</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">expecting_equals</tt> <tt class="py-op">==</tt> <tt class="py-number">1</tt><tt class="py-op">:</tt> </tt>
<a name="L157"></a><tt class="py-lineno">157</tt> <tt class="py-line"> <tt class="py-comment"># If the current AST sub tree is associated with</tt> </tt>
<a name="L158"></a><tt class="py-lineno">158</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-comment"># assignment/"=":</tt> </tt>
<a name="L159"></a><tt class="py-lineno">159</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-keyword">if</tt> <tt class="py-name">AST_sublist</tt><tt class="py-op">[</tt><tt class="py-number">1</tt><tt class="py-op">]</tt> <tt class="py-op">==</tt> <tt class="py-string">'='</tt><tt class="py-op">:</tt> </tt>
<a name="L160"></a><tt class="py-lineno">160</tt> <tt class="py-line"> <tt class="py-keyword">if</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">modifying_AST</tt> <tt class="py-op">==</tt> <tt class="py-number">1</tt><tt class="py-op">:</tt> </tt>
<a name="L161"></a><tt class="py-lineno">161</tt> <tt class="py-line"> <tt class="py-comment"># Enter new mode: AST visitor will change</tt> </tt>
<a name="L162"></a><tt class="py-lineno">162</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-comment"># the assignment value to</tt> </tt>
<a name="L163"></a><tt class="py-lineno">163</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-comment"># "assign_val_subtree":</tt> </tt>
<a name="L164"></a><tt class="py-lineno">164</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">setting_assign_val</tt> <tt class="py-op">=</tt> <tt class="py-number">1</tt> </tt>
<a name="L165"></a><tt class="py-lineno">165</tt> <tt class="py-line"> <tt class="py-keyword">elif</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">modifying_AST</tt> <tt class="py-op">==</tt> <tt class="py-number">0</tt><tt class="py-op">:</tt> </tt>
<a name="L166"></a><tt class="py-lineno">166</tt> <tt class="py-line"> <tt class="py-comment"># Enter new mode: AST visitor will extract</tt> </tt>
<a name="L167"></a><tt class="py-lineno">167</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-comment"># the assignment value of "assign_name":</tt> </tt>
<a name="L168"></a><tt class="py-lineno">168</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">extracting_assign_val</tt> <tt class="py-op">=</tt> <tt class="py-number">1</tt> </tt>
<a name="L169"></a><tt class="py-lineno">169</tt> <tt class="py-line"> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">expecting_equals</tt> <tt class="py-op">=</tt> <tt class="py-number">0</tt> </tt>
<a name="L170"></a><tt class="py-lineno">170</tt> <tt class="py-line"> </tt>
<a name="L171"></a><tt class="py-lineno">171</tt> <tt class="py-line"> <tt class="py-keyword">return</tt> <tt class="py-name">AST_sublist</tt><tt class="py-op">[</tt><tt class="py-number">0</tt><tt class="py-op">:</tt><tt class="py-number">2</tt><tt class="py-op">]</tt> </tt>
<a name="L172"></a><tt class="py-lineno">172</tt> <tt class="py-line"> </tt>
<a name="L173"></a><tt class="py-lineno">173</tt> <tt class="py-line"> <tt class="py-comment"># If we are somewhere within the 'name_sequence':</tt> </tt>
<a name="L174"></a><tt class="py-lineno">174</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-keyword">if</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">name_seq_index</tt> <tt class="py-op">></tt> <tt class="py-number">0</tt> <tt class="py-keyword">or</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">name_seq_index</tt> <tt class="py-op"><</tt> <tt class="py-name">len</tt><tt class="py-op">(</tt><tt id="link-11" class="py-name"><a title="VisionEgg.PyroApps.AST_ext.name_sequence" class="py-name" href="#" onclick="return doclink('link-11', 'name_sequence', 'link-0');">name_sequence</a></tt><tt class="py-op">)</tt> <tt class="py-op">-</tt> <tt class="py-number">1</tt><tt class="py-op">:</tt> </tt>
<a name="L175"></a><tt class="py-lineno">175</tt> <tt class="py-line"> <tt class="py-comment"># If the AST visitor is extracting the value of "assign_name":</tt> </tt>
<a name="L176"></a><tt class="py-lineno">176</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-keyword">if</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">extracting_assign_val</tt> <tt class="py-op">==</tt> <tt class="py-number">1</tt><tt class="py-op">:</tt> </tt>
<a name="L177"></a><tt class="py-lineno">177</tt> <tt class="py-line"> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">extracted_val</tt> <tt class="py-op">=</tt> <tt class="py-string">"compound"</tt> </tt>
<a name="L178"></a><tt class="py-lineno">178</tt> <tt class="py-line"> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">extracting_assign_val</tt> <tt class="py-op">=</tt> <tt class="py-number">0</tt> </tt>
<a name="L179"></a><tt class="py-lineno">179</tt> <tt class="py-line"> </tt>
<a name="L180"></a><tt class="py-lineno">180</tt> <tt class="py-line"> </tt>
<a name="L181"></a><tt class="py-lineno">181</tt> <tt class="py-line"> <tt class="py-comment"># For all other types of sub trees, AST visitor will traverse</tt> </tt>
<a name="L182"></a><tt class="py-lineno">182</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-comment"># in a depth first search pattern:</tt> </tt>
<a name="L183"></a><tt class="py-lineno">183</tt> <tt class="py-line"><tt class="py-comment"></tt> <tt class="py-name">sub_list</tt> <tt class="py-op">=</tt> <tt class="py-op">[</tt><tt class="py-op">]</tt> </tt>
<a name="L184"></a><tt class="py-lineno">184</tt> <tt class="py-line"> <tt class="py-keyword">for</tt> <tt class="py-name">x</tt> <tt class="py-keyword">in</tt> <tt class="py-name">AST_sublist</tt><tt class="py-op">:</tt> </tt>
<a name="L185"></a><tt class="py-lineno">185</tt> <tt class="py-line"> <tt class="py-name">sub_list</tt> <tt class="py-op">=</tt> <tt class="py-name">sub_list</tt> <tt class="py-op">+</tt> <tt class="py-op">[</tt><tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-12" class="py-name"><a title="VisionEgg.PyroApps.AST_ext.AST_Visitor.traverse" class="py-name" href="#" onclick="return doclink('link-12', 'traverse', 'link-8');">traverse</a></tt><tt class="py-op">(</tt><tt class="py-name">x</tt><tt class="py-op">,</tt> <tt class="py-name">assign_name</tt><tt class="py-op">,</tt> <tt class="py-name">assign_val_subtree</tt><tt class="py-op">)</tt><tt class="py-op">]</tt> </tt>
<a name="L186"></a><tt class="py-lineno">186</tt> <tt class="py-line"> <tt class="py-keyword">return</tt> <tt class="py-name">sub_list</tt> </tt>
</div></div><a name="L187"></a><tt class="py-lineno">187</tt> <tt class="py-line"> </tt>
<a name="modify_AST"></a><div id="modify_AST-def"><a name="L188"></a><tt class="py-lineno">188</tt> <a class="py-toggle" href="#" id="modify_AST-toggle" onclick="return toggle('modify_AST');">-</a><tt class="py-line"><tt class="py-keyword">def</tt> <a class="py-def-name" href="VisionEgg.PyroApps.AST_ext-module.html#modify_AST">modify_AST</a><tt class="py-op">(</tt><tt class="py-param">myAST</tt><tt class="py-op">,</tt> <tt class="py-param">assign_name</tt><tt class="py-op">,</tt> <tt class="py-param">assign_val</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="modify_AST-collapsed" style="display:none;" pad="+++" indent="++++"></div><div id="modify_AST-expanded"><a name="L189"></a><tt class="py-lineno">189</tt> <tt class="py-line"> <tt class="py-name">myAST_Visitor</tt> <tt class="py-op">=</tt> <tt id="link-13" class="py-name" targets="Class VisionEgg.PyroApps.AST_ext.AST_Visitor=VisionEgg.PyroApps.AST_ext.AST_Visitor-class.html"><a title="VisionEgg.PyroApps.AST_ext.AST_Visitor" class="py-name" href="#" onclick="return doclink('link-13', 'AST_Visitor', 'link-13');">AST_Visitor</a></tt><tt class="py-op">(</tt><tt class="py-number">1</tt><tt class="py-op">)</tt> </tt>
<a name="L190"></a><tt class="py-lineno">190</tt> <tt class="py-line"> <tt class="py-name">old_AST_list</tt> <tt class="py-op">=</tt> <tt class="py-name">myAST</tt><tt class="py-op">.</tt><tt class="py-name">tolist</tt><tt class="py-op">(</tt><tt class="py-number">1</tt><tt class="py-op">)</tt> </tt>
<a name="L191"></a><tt class="py-lineno">191</tt> <tt class="py-line"> <tt class="py-name">assign_val_type</tt> <tt class="py-op">=</tt> <tt class="py-number">0</tt> </tt>
<a name="L192"></a><tt class="py-lineno">192</tt> <tt class="py-line"> <tt class="py-keyword">if</tt> <tt class="py-name">isinstance</tt><tt class="py-op">(</tt><tt class="py-name">assign_val</tt><tt class="py-op">,</tt> <tt id="link-14" class="py-name" targets="Class int=int-class.html"><a title="int" class="py-name" href="#" onclick="return doclink('link-14', 'int', 'link-14');">int</a></tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L193"></a><tt class="py-lineno">193</tt> <tt class="py-line"> <tt class="py-name">assign_val_type</tt> <tt class="py-op">=</tt> <tt class="py-number">2</tt> </tt>
<a name="L194"></a><tt class="py-lineno">194</tt> <tt class="py-line"> <tt class="py-keyword">elif</tt> <tt class="py-name">isinstance</tt><tt class="py-op">(</tt><tt class="py-name">assign_val</tt><tt class="py-op">,</tt> <tt id="link-15" class="py-name" targets="Class float=float-class.html"><a title="float" class="py-name" href="#" onclick="return doclink('link-15', 'float', 'link-15');">float</a></tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L195"></a><tt class="py-lineno">195</tt> <tt class="py-line"> <tt class="py-name">assign_val_type</tt> <tt class="py-op">=</tt> <tt class="py-number">1</tt> </tt>
<a name="L196"></a><tt class="py-lineno">196</tt> <tt class="py-line"> <tt class="py-keyword">elif</tt> <tt class="py-name">type</tt><tt class="py-op">(</tt><tt class="py-name">assign_val</tt><tt class="py-op">)</tt> <tt class="py-op">==</tt> <tt class="py-name">str</tt><tt class="py-op">:</tt> </tt>
<a name="L197"></a><tt class="py-lineno">197</tt> <tt class="py-line"> <tt class="py-name">assign_val_type</tt> <tt class="py-op">=</tt> <tt class="py-number">3</tt> </tt>
<a name="L198"></a><tt class="py-lineno">198</tt> <tt class="py-line"> <tt class="py-name">new_AST_list</tt> <tt class="py-op">=</tt> <tt class="py-name">myAST_Visitor</tt><tt class="py-op">.</tt><tt id="link-16" class="py-name"><a title="VisionEgg.PyroApps.AST_ext.AST_Visitor.traverse" class="py-name" href="#" onclick="return doclink('link-16', 'traverse', 'link-8');">traverse</a></tt><tt class="py-op">(</tt><tt class="py-name">old_AST_list</tt><tt class="py-op">,</tt> <tt class="py-name">assign_name</tt><tt class="py-op">,</tt> <tt id="link-17" class="py-name" targets="Function VisionEgg.PyroApps.AST_ext.gen_assign_val_subtree()=VisionEgg.PyroApps.AST_ext-module.html#gen_assign_val_subtree"><a title="VisionEgg.PyroApps.AST_ext.gen_assign_val_subtree" class="py-name" href="#" onclick="return doclink('link-17', 'gen_assign_val_subtree', 'link-17');">gen_assign_val_subtree</a></tt><tt class="py-op">(</tt><tt class="py-name">assign_val</tt><tt class="py-op">,</tt> <tt class="py-name">assign_val_type</tt><tt class="py-op">)</tt><tt class="py-op">)</tt> </tt>
<a name="L199"></a><tt class="py-lineno">199</tt> <tt class="py-line"> <tt class="py-name">myNewAST</tt> <tt class="py-op">=</tt> <tt class="py-name">parser</tt><tt class="py-op">.</tt><tt class="py-name">sequence2ast</tt><tt class="py-op">(</tt><tt class="py-name">new_AST_list</tt><tt class="py-op">)</tt> </tt>
<a name="L200"></a><tt class="py-lineno">200</tt> <tt class="py-line"> <tt class="py-keyword">return</tt> <tt class="py-name">myNewAST</tt> </tt>
</div><a name="L201"></a><tt class="py-lineno">201</tt> <tt class="py-line"> </tt>
<a name="L202"></a><tt class="py-lineno">202</tt> <tt class="py-line"><tt class="py-comment"># Extract the assigned value of a variable from an AST. Retains the type.</tt> </tt>
<a name="extract_from_AST"></a><div id="extract_from_AST-def"><a name="L203"></a><tt class="py-lineno">203</tt> <a class="py-toggle" href="#" id="extract_from_AST-toggle" onclick="return toggle('extract_from_AST');">-</a><tt class="py-line"><tt class="py-comment"></tt><tt class="py-keyword">def</tt> <a class="py-def-name" href="VisionEgg.PyroApps.AST_ext-module.html#extract_from_AST">extract_from_AST</a><tt class="py-op">(</tt><tt class="py-param">myAST</tt><tt class="py-op">,</tt> <tt class="py-param">assign_name</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="extract_from_AST-collapsed" style="display:none;" pad="+++" indent="++++"></div><div id="extract_from_AST-expanded"><a name="L204"></a><tt class="py-lineno">204</tt> <tt class="py-line"> <tt class="py-name">myAST_Visitor</tt> <tt class="py-op">=</tt> <tt id="link-18" class="py-name"><a title="VisionEgg.PyroApps.AST_ext.AST_Visitor" class="py-name" href="#" onclick="return doclink('link-18', 'AST_Visitor', 'link-13');">AST_Visitor</a></tt><tt class="py-op">(</tt><tt class="py-number">0</tt><tt class="py-op">)</tt> </tt>
<a name="L205"></a><tt class="py-lineno">205</tt> <tt class="py-line"> <tt class="py-name">old_AST_list</tt> <tt class="py-op">=</tt> <tt class="py-name">myAST</tt><tt class="py-op">.</tt><tt class="py-name">tolist</tt><tt class="py-op">(</tt><tt class="py-number">1</tt><tt class="py-op">)</tt> </tt>
<a name="L206"></a><tt class="py-lineno">206</tt> <tt class="py-line"> <tt class="py-name">new_AST_list</tt> <tt class="py-op">=</tt> <tt class="py-name">myAST_Visitor</tt><tt class="py-op">.</tt><tt id="link-19" class="py-name"><a title="VisionEgg.PyroApps.AST_ext.AST_Visitor.traverse" class="py-name" href="#" onclick="return doclink('link-19', 'traverse', 'link-8');">traverse</a></tt><tt class="py-op">(</tt><tt class="py-name">old_AST_list</tt><tt class="py-op">,</tt> <tt class="py-name">assign_name</tt><tt class="py-op">,</tt> <tt class="py-number">0</tt><tt class="py-op">)</tt> </tt>
<a name="L207"></a><tt class="py-lineno">207</tt> <tt class="py-line"> <tt class="py-keyword">return</tt> <tt class="py-name">myAST_Visitor</tt><tt class="py-op">.</tt><tt class="py-name">extracted_val</tt> </tt>
</div><a name="L208"></a><tt class="py-lineno">208</tt> <tt class="py-line"> </tt><script type="text/javascript">
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distrib
>
Mandriva
>
2010.0
>
i586
>
media
>
contrib-release
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by-pkgid
>
b4347e6708d280a7ffb2b5b2ea3cdb9d
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files
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337
