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File: <b >Synopsis/Processors/Comments/Previous.py</b><pre class="sxr"><a id="line1"></a><span class="lineno"> 1</span><span class="line"><span class="py-comment">#</span></span>
<a id="line2"></a><span class="lineno"> 2</span><span class="line"><span class="py-comment"># Copyright (C) 2005 Stefan Seefeld</span></span>
<a id="line3"></a><span class="lineno"> 3</span><span class="line"><span class="py-comment"># All rights reserved.</span></span>
<a id="line4"></a><span class="lineno"> 4</span><span class="line"><span class="py-comment"># Licensed to the public under the terms of the GNU LGPL (>= 2),</span></span>
<a id="line5"></a><span class="lineno"> 5</span><span class="line"><span class="py-comment"># see the file COPYING for details.</span></span>
<a id="line6"></a><span class="lineno"> 6</span><span class="line"><span class="py-comment">#</span></span>
<a id="line7"></a><span class="lineno"> 7</span>
<a id="line8"></a><span class="lineno"> 8</span><span class="line"><span class="py-keyword">from</span> Synopsis.Processor <span class="py-keyword">import</span> Processor, Parameter</span>
<a id="line9"></a><span class="lineno"> 9</span><span class="line"><span class="py-keyword">from</span> Synopsis <span class="py-keyword">import</span> ASG</span>
<a id="line10"></a><span class="lineno">10</span>
<a id="line11"></a><span class="lineno">11</span><span class="line"><span class="py-keyword">class</span> <a href="../../../../Scopes/Synopsis/Processors/Comments/Previous/Previous.html">Previous</a>(Processor, ASG.Visitor):</span>
<a id="line12"></a><span class="lineno">12</span><span class="line"> <span class="py-string">"""A class that maps comments that begin with '<' to the previous</span></span>
<a id="line13"></a><span class="lineno">13</span><span class="line"><span class="py-string"> declaration"""</span></span>
<a id="line14"></a><span class="lineno">14</span>
<a id="line15"></a><span class="lineno">15</span><span class="line"> <span class="py-keyword">def</span> <a href="../../../../Scopes/Synopsis/Processors/Comments/Previous/Previous.html#process">process</a>(self, ir, **kwds):</span>
<a id="line16"></a><span class="lineno">16</span><span class="line"> <span class="py-string">"""decorates process() to initialise last and laststack"""</span></span>
<a id="line17"></a><span class="lineno">17</span>
<a id="line18"></a><span class="lineno">18</span><span class="line"> self.set_parameters(kwds)</span>
<a id="line19"></a><span class="lineno">19</span><span class="line"> self.ir = self.merge_input(ir)</span>
<a id="line20"></a><span class="lineno">20</span>
<a id="line21"></a><span class="lineno">21</span><span class="line"> self.last = None</span>
<a id="line22"></a><span class="lineno">22</span><span class="line"> self.__laststack = []</span>
<a id="line23"></a><span class="lineno">23</span><span class="line"> <span class="py-keyword">for</span> d <span class="py-keyword">in</span> ir.asg.declarations:</span>
<a id="line24"></a><span class="lineno">24</span><span class="line"> d.accept(self)</span>
<a id="line25"></a><span class="lineno">25</span><span class="line"> self.last = d</span>
<a id="line26"></a><span class="lineno">26</span>
<a id="line27"></a><span class="lineno">27</span><span class="line"> <span class="py-keyword">return</span> self.output_and_return_ir()</span>
<a id="line28"></a><span class="lineno">28</span>
<a id="line29"></a><span class="lineno">29</span><span class="line"> <span class="py-keyword">def</span> <a href="../../../../Scopes/Synopsis/Processors/Comments/Previous/Previous.html#push">push</a>(self):</span>
<a id="line30"></a><span class="lineno">30</span><span class="line"> <span class="py-string">"""decorates push() to also push 'last' onto 'laststack'"""</span></span>
<a id="line31"></a><span class="lineno">31</span>
<a id="line32"></a><span class="lineno">32</span><span class="line"> self.__laststack.append(self.last)</span>
<a id="line33"></a><span class="lineno">33</span><span class="line"> self.last = None</span>
<a id="line34"></a><span class="lineno">34</span>
<a id="line35"></a><span class="lineno">35</span><span class="line"> <span class="py-keyword">def</span> <a href="../../../../Scopes/Synopsis/Processors/Comments/Previous/Previous.html#pop">pop</a>(self):</span>
<a id="line36"></a><span class="lineno">36</span><span class="line"> <span class="py-string">"""decorates pop() to also pop 'last' from 'laststack'"""</span></span>
<a id="line37"></a><span class="lineno">37</span>
<a id="line38"></a><span class="lineno">38</span><span class="line"> self.last = self.__laststack.pop()</span>
<a id="line39"></a><span class="lineno">39</span>
<a id="line40"></a><span class="lineno">40</span><span class="line"> <span class="py-keyword">def</span> <a href="../../../../Scopes/Synopsis/Processors/Comments/Previous/Previous.html#visit_scope">visit_scope</a>(self, scope):</span>
<a id="line41"></a><span class="lineno">41</span><span class="line"> <span class="py-string">"""overrides visit_scope() to set 'last' after each declaration"""</span></span>
<a id="line42"></a><span class="lineno">42</span>
<a id="line43"></a><span class="lineno">43</span><span class="line"> self.push()</span>
<a id="line44"></a><span class="lineno">44</span><span class="line"> <span class="py-keyword">for</span> d <span class="py-keyword">in</span> scope.declarations:</span>
<a id="line45"></a><span class="lineno">45</span><span class="line"> d.accept(self)</span>
<a id="line46"></a><span class="lineno">46</span><span class="line"> self.last = d</span>
<a id="line47"></a><span class="lineno">47</span><span class="line"> self.pop()</span>
<a id="line48"></a><span class="lineno">48</span>
<a id="line49"></a><span class="lineno">49</span><span class="line"> <span class="py-keyword">def</span> <a href="../../../../Scopes/Synopsis/Processors/Comments/Previous/Previous.html#visit_declaration">visit_declaration</a>(self, decl):</span>
<a id="line50"></a><span class="lineno">50</span><span class="line"> self.process_comments(decl)</span>
<a id="line51"></a><span class="lineno">51</span>
<a id="line52"></a><span class="lineno">52</span><span class="line"> <span class="py-keyword">def</span> <a href="../../../../Scopes/Synopsis/Processors/Comments/Previous/Previous.html#visit_builtin">visit_builtin</a>(self, decl):</span>
<a id="line53"></a><span class="lineno">53</span><span class="line"> <span class="py-keyword">if</span> decl.type == <span class="py-string">'EOS'</span>: <span class="py-comment"># treat it if it is an 'end of scope' marker</span></span>
<a id="line54"></a><span class="lineno">54</span><span class="line"> self.process_comments(decl)</span>
<a id="line55"></a><span class="lineno">55</span>
<a id="line56"></a><span class="lineno">56</span><span class="line"> <span class="py-keyword">def</span> <a href="../../../../Scopes/Synopsis/Processors/Comments/Previous/Previous.html#visit_enum">visit_enum</a>(self, enum):</span>
<a id="line57"></a><span class="lineno">57</span><span class="line"> <span class="py-string">"""Does the same as visit_scope but for enum and enumerators"""</span></span>
<a id="line58"></a><span class="lineno">58</span>
<a id="line59"></a><span class="lineno">59</span><span class="line"> self.push()</span>
<a id="line60"></a><span class="lineno">60</span><span class="line"> <span class="py-keyword">for</span> enumor <span class="py-keyword">in</span> enum.enumerators:</span>
<a id="line61"></a><span class="lineno">61</span><span class="line"> enumor.accept(self)</span>
<a id="line62"></a><span class="lineno">62</span><span class="line"> self.last = enumor</span>
<a id="line63"></a><span class="lineno">63</span><span class="line"> <span class="py-keyword">if</span> enum.eos: enum.eos.accept(self)</span>
<a id="line64"></a><span class="lineno">64</span><span class="line"> self.pop()</span>
<a id="line65"></a><span class="lineno">65</span>
<a id="line66"></a><span class="lineno">66</span><span class="line"> <span class="py-keyword">def</span> <a href="../../../../Scopes/Synopsis/Processors/Comments/Previous/Previous.html#visit_enumerator">visit_enumerator</a>(self, enumor):</span>
<a id="line67"></a><span class="lineno">67</span><span class="line"> <span class="py-string">"""Checks previous comment and removes dummies"""</span></span>
<a id="line68"></a><span class="lineno">68</span>
<a id="line69"></a><span class="lineno">69</span><span class="line"> self.process_comments(enumor)</span>
<a id="line70"></a><span class="lineno">70</span>
<a id="line71"></a><span class="lineno">71</span><span class="line"> <span class="py-keyword">def</span> <a href="../../../../Scopes/Synopsis/Processors/Comments/Previous/Previous.html#process_comments">process_comments</a>(self, decl):</span>
<a id="line72"></a><span class="lineno">72</span><span class="line"> <span class="py-string">"""Checks a decl to see if the comment should be moved. If the comment</span></span>
<a id="line73"></a><span class="lineno">73</span><span class="line"><span class="py-string"> begins with a less-than sign, then it is moved to the 'last'</span></span>
<a id="line74"></a><span class="lineno">74</span><span class="line"><span class="py-string"> declaration"""</span></span>
<a id="line75"></a><span class="lineno">75</span>
<a id="line76"></a><span class="lineno">76</span><span class="line"> comments = decl.annotations.get(<span class="py-string">'comments'</span>, [])</span>
<a id="line77"></a><span class="lineno">77</span><span class="line"> <span class="py-keyword">if</span> comments <span class="py-keyword">and</span> self.last:</span>
<a id="line78"></a><span class="lineno">78</span><span class="line"> first = comments[0]</span>
<a id="line79"></a><span class="lineno">79</span><span class="line"> <span class="py-keyword">if</span> first <span class="py-keyword">and</span> first[0] == <span class="py-string">"<"</span> <span class="py-keyword">and</span> self.last:</span>
<a id="line80"></a><span class="lineno">80</span><span class="line"> <span class="py-keyword">if</span> self.debug:</span>
<a id="line81"></a><span class="lineno">81</span><span class="line"> <span class="py-keyword">print</span> <span class="py-string">'found comment for previous in'</span>, decl.name</span>
<a id="line82"></a><span class="lineno">82</span><span class="line"> comments = self.last.annotations.get(<span class="py-string">'comments'</span>, [])</span>
<a id="line83"></a><span class="lineno">83</span><span class="line"> comments.append(first[1:]) <span class="py-comment"># Remove '<'</span></span>
<a id="line84"></a><span class="lineno">84</span><span class="line"> self.last.annotations[<span class="py-string">'comments'</span>] = comments</span>
<a id="line85"></a><span class="lineno">85</span><span class="line"> <span class="py-keyword">del</span> comments[0]</span>
<a id="line86"></a><span class="lineno">86</span>
<a id="line87"></a><span class="lineno">87</span>
</pre>
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