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1 # ################################################################# |
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2 # Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). |
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3 # All rights reserved. |
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4 # |
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5 # Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: |
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6 # |
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7 # * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. |
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8 # * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. |
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9 # * Neither the name of Nokia Corporation nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. |
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10 # |
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11 # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
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12 # THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS |
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13 # BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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14 # SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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15 # CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.# |
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16 # |
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17 # returndescriptoroutofscope.py |
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18 # |
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19 # Checks : Return descriptor out of scope. |
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20 # |
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21 # Reason : Returning a TBuf descriptor that is declared locally |
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22 # takes it out of scope. This can cause a crash on WINSCW, although |
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23 # not on WINS. |
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24 # |
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25 # ################################################################# |
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26 |
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27 script = CScript("returndescriptoroutofscope") |
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28 script.iReString = r""" |
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29 TBuf |
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30 \s* |
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31 < |
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32 [A-Za-z0-9]+ |
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33 > |
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34 \s* |
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35 """ |
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36 script.iFileExts = ["cpp"] |
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37 script.iCategory = KCategoryCanPanic |
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38 script.iIgnore = KIgnoreCommentsAndQuotes |
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39 script.iSeverity = KSeverityHigh |
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40 |
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41 reReturnValue = re.compile(""" |
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42 return |
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43 \s* |
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44 """, re.VERBOSE) |
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45 |
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46 reOpenCurlyBracket = re.compile(""" |
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47 { |
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48 """, re.VERBOSE) |
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49 |
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50 reCloseCurlyBracket = re.compile(""" |
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51 } |
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52 """, re.VERBOSE) |
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53 |
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54 def finddescriptor(line, descriptor): |
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55 startindex = line.find(descriptor) |
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56 if (startindex <> -1): |
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57 if (line[startindex] == " "): |
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58 if (line[startindex + len(descriptor)] == ";"): |
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59 return 1 |
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60 return 0 |
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61 |
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62 def returnvaluecompare(lines, currentline, rematch, filename): |
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63 line = lines[currentline] |
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64 m = rematch.search(line) |
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65 |
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66 if m: |
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67 startindex = line.find(">"); |
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68 endindex = line.find(";"); |
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69 |
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70 if (startindex <> -1): |
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71 descriptor = line[startindex+1:endindex] |
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72 |
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73 i = currentline |
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74 bracketdepth = 1 |
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75 while (i+1 < len(lines)): |
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76 i = i + 1 |
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77 line2 = lines[i] |
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78 |
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79 if reReturnValue.search(line2): |
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80 if (finddescriptor(line2, descriptor)): |
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81 return 1 |
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82 |
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83 if reOpenCurlyBracket.search(line2): |
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84 bracketdepth = bracketdepth + 1 |
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85 |
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86 if reCloseCurlyBracket.search(line2): |
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87 bracketdepth = bracketdepth - 1 |
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88 if (bracketdepth == 0): |
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89 return 0 |
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90 |
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91 return 0 |
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92 |
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93 script.iCompare = returnvaluecompare |
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94 scanner.AddScript(script) |