Mercurial > hg
annotate mercurial/smartset.py @ 50600:1d937e495cd0
safehasattr: pass attribute name as string instead of bytes
This is a step toward replacing `util.safehasattr` usage with plain `hasattr`.
The builtin function behave poorly in Python2 but this was fixed in Python3.
These change are done one by one as they tend to have a small odd to trigger
puzzling breackage.
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Thu, 02 Feb 2023 17:35:47 +0100 |
parents | 921a72735482 |
children | f6cb926d4189 |
rev | line source |
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1 # smartset.py - data structure for revision set |
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3 # Copyright 2010 Olivia Mackall <olivia@selenic.com> |
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5 # This software may be used and distributed according to the terms of the | |
6 # GNU General Public License version 2 or any later version. | |
7 | |
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8 |
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9 from .pycompat import getattr |
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10 from . import ( |
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11 encoding, |
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12 error, |
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13 pycompat, |
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14 util, |
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15 ) |
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16 from .utils import stringutil |
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17 |
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18 |
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19 def _typename(o): |
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20 return pycompat.sysbytes(type(o).__name__).lstrip(b'_') |
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21 |
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22 |
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23 class abstractsmartset: |
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24 def __nonzero__(self): |
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25 """True if the smartset is not empty""" |
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26 raise NotImplementedError() |
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27 |
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28 __bool__ = __nonzero__ |
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29 |
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30 def __contains__(self, rev): |
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31 """provide fast membership testing""" |
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32 raise NotImplementedError() |
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33 |
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34 def __iter__(self): |
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35 """iterate the set in the order it is supposed to be iterated""" |
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36 raise NotImplementedError() |
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37 |
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38 # Attributes containing a function to perform a fast iteration in a given |
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39 # direction. A smartset can have none, one, or both defined. |
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40 # |
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41 # Default value is None instead of a function returning None to avoid |
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42 # initializing an iterator just for testing if a fast method exists. |
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43 fastasc = None |
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44 fastdesc = None |
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45 |
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46 def isascending(self): |
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47 """True if the set will iterate in ascending order""" |
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48 raise NotImplementedError() |
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49 |
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50 def isdescending(self): |
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51 """True if the set will iterate in descending order""" |
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52 raise NotImplementedError() |
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53 |
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54 def istopo(self): |
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55 """True if the set will iterate in topographical order""" |
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56 raise NotImplementedError() |
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57 |
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58 def min(self): |
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59 """return the minimum element in the set""" |
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60 if self.fastasc is None: |
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61 v = min(self) |
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62 else: |
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63 for v in self.fastasc(): |
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64 break |
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65 else: |
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66 raise ValueError(b'arg is an empty sequence') |
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67 self.min = lambda: v |
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68 return v |
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69 |
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70 def max(self): |
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71 """return the maximum element in the set""" |
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72 if self.fastdesc is None: |
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73 return max(self) |
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74 else: |
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75 for v in self.fastdesc(): |
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76 break |
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77 else: |
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78 raise ValueError(b'arg is an empty sequence') |
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79 self.max = lambda: v |
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80 return v |
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81 |
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82 def first(self): |
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83 """return the first element in the set (user iteration perspective) |
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84 |
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85 Return None if the set is empty""" |
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86 raise NotImplementedError() |
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87 |
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88 def last(self): |
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89 """return the last element in the set (user iteration perspective) |
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90 |
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91 Return None if the set is empty""" |
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92 raise NotImplementedError() |
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93 |
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94 def __len__(self): |
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95 """return the length of the smartsets |
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96 |
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97 This can be expensive on smartset that could be lazy otherwise.""" |
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98 raise NotImplementedError() |
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99 |
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100 def reverse(self): |
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101 """reverse the expected iteration order""" |
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102 raise NotImplementedError() |
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103 |
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104 def sort(self, reverse=False): |
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105 """get the set to iterate in an ascending or descending order""" |
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106 raise NotImplementedError() |
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107 |
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108 def __and__(self, other): |
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109 """Returns a new object with the intersection of the two collections. |
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110 |
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111 This is part of the mandatory API for smartset.""" |
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112 if isinstance(other, fullreposet): |
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113 return self |
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114 return self.filter(other.__contains__, condrepr=other, cache=False) |
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115 |
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116 def __add__(self, other): |
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117 """Returns a new object with the union of the two collections. |
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118 |
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119 This is part of the mandatory API for smartset.""" |
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120 return addset(self, other) |
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121 |
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122 def __sub__(self, other): |
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123 """Returns a new object with the substraction of the two collections. |
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124 |
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125 This is part of the mandatory API for smartset.""" |
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126 c = other.__contains__ |
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127 return self.filter( |
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128 lambda r: not c(r), condrepr=(b'<not %r>', other), cache=False |
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129 ) |
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130 |
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131 def filter(self, condition, condrepr=None, cache=True): |
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132 """Returns this smartset filtered by condition as a new smartset. |
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133 |
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134 `condition` is a callable which takes a revision number and returns a |
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135 boolean. Optional `condrepr` provides a printable representation of |
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136 the given `condition`. |
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137 |
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138 This is part of the mandatory API for smartset.""" |
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139 # builtin cannot be cached. but do not needs to |
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140 if cache and util.safehasattr(condition, '__code__'): |
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141 condition = util.cachefunc(condition) |
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142 return filteredset(self, condition, condrepr) |
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143 |
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144 def slice(self, start, stop): |
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145 """Return new smartset that contains selected elements from this set""" |
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146 if start < 0 or stop < 0: |
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147 raise error.ProgrammingError(b'negative index not allowed') |
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148 return self._slice(start, stop) |
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149 |
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150 def _slice(self, start, stop): |
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151 # sub classes may override this. start and stop must not be negative, |
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152 # but start > stop is allowed, which should be an empty set. |
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153 ys = [] |
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154 it = iter(self) |
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155 for x in range(start): |
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156 y = next(it, None) |
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157 if y is None: |
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158 break |
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159 for x in range(stop - start): |
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160 y = next(it, None) |
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161 if y is None: |
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162 break |
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163 ys.append(y) |
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164 return baseset(ys, datarepr=(b'slice=%d:%d %r', start, stop, self)) |
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165 |
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166 |
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167 class baseset(abstractsmartset): |
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168 """Basic data structure that represents a revset and contains the basic |
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169 operation that it should be able to perform. |
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170 |
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171 Every method in this class should be implemented by any smartset class. |
31019 | 172 |
173 This class could be constructed by an (unordered) set, or an (ordered) | |
174 list-like object. If a set is provided, it'll be sorted lazily. | |
175 | |
176 >>> x = [4, 0, 7, 6] | |
177 >>> y = [5, 6, 7, 3] | |
178 | |
179 Construct by a set: | |
180 >>> xs = baseset(set(x)) | |
181 >>> ys = baseset(set(y)) | |
182 >>> [list(i) for i in [xs + ys, xs & ys, xs - ys]] | |
183 [[0, 4, 6, 7, 3, 5], [6, 7], [0, 4]] | |
184 >>> [type(i).__name__ for i in [xs + ys, xs & ys, xs - ys]] | |
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185 ['addset', 'baseset', 'baseset'] |
31019 | 186 |
187 Construct by a list-like: | |
188 >>> xs = baseset(x) | |
189 >>> ys = baseset(i for i in y) | |
190 >>> [list(i) for i in [xs + ys, xs & ys, xs - ys]] | |
191 [[4, 0, 7, 6, 5, 3], [7, 6], [4, 0]] | |
192 >>> [type(i).__name__ for i in [xs + ys, xs & ys, xs - ys]] | |
193 ['addset', 'filteredset', 'filteredset'] | |
194 | |
195 Populate "_set" fields in the lists so set optimization may be used: | |
196 >>> [1 in xs, 3 in ys] | |
197 [False, True] | |
198 | |
199 Without sort(), results won't be changed: | |
200 >>> [list(i) for i in [xs + ys, xs & ys, xs - ys]] | |
201 [[4, 0, 7, 6, 5, 3], [7, 6], [4, 0]] | |
202 >>> [type(i).__name__ for i in [xs + ys, xs & ys, xs - ys]] | |
203 ['addset', 'filteredset', 'filteredset'] | |
204 | |
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205 With sort(), set optimization could be used: |
31019 | 206 >>> xs.sort(reverse=True) |
207 >>> [list(i) for i in [xs + ys, xs & ys, xs - ys]] | |
208 [[7, 6, 4, 0, 5, 3], [7, 6], [4, 0]] | |
209 >>> [type(i).__name__ for i in [xs + ys, xs & ys, xs - ys]] | |
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210 ['addset', 'baseset', 'baseset'] |
31019 | 211 |
212 >>> ys.sort() | |
213 >>> [list(i) for i in [xs + ys, xs & ys, xs - ys]] | |
214 [[7, 6, 4, 0, 3, 5], [7, 6], [4, 0]] | |
215 >>> [type(i).__name__ for i in [xs + ys, xs & ys, xs - ys]] | |
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216 ['addset', 'baseset', 'baseset'] |
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217 |
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218 istopo is preserved across set operations |
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219 >>> xs = baseset(set(x), istopo=True) |
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220 >>> rs = xs & ys |
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221 >>> type(rs).__name__ |
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222 'baseset' |
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223 >>> rs._istopo |
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224 True |
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225 """ |
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226 |
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227 def __init__(self, data=(), datarepr=None, istopo=False): |
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228 """ |
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229 datarepr: a tuple of (format, obj, ...), a function or an object that |
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230 provides a printable representation of the given data. |
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231 """ |
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232 self._ascending = None |
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233 self._istopo = istopo |
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234 if isinstance(data, set): |
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235 # converting set to list has a cost, do it lazily |
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236 self._set = data |
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237 # set has no order we pick one for stability purpose |
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238 self._ascending = True |
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239 else: |
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240 if not isinstance(data, list): |
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241 data = list(data) |
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242 self._list = data |
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243 self._datarepr = datarepr |
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244 |
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245 @util.propertycache |
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246 def _set(self): |
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247 return set(self._list) |
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248 |
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249 @util.propertycache |
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250 def _asclist(self): |
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251 asclist = self._list[:] |
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252 asclist.sort() |
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253 return asclist |
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254 |
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255 @util.propertycache |
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256 def _list(self): |
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257 # _list is only lazily constructed if we have _set |
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258 assert '_set' in self.__dict__ |
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259 return list(self._set) |
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260 |
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261 def __iter__(self): |
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262 if self._ascending is None: |
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263 return iter(self._list) |
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264 elif self._ascending: |
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265 return iter(self._asclist) |
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266 else: |
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267 return reversed(self._asclist) |
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268 |
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269 def fastasc(self): |
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270 return iter(self._asclist) |
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271 |
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272 def fastdesc(self): |
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273 return reversed(self._asclist) |
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274 |
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275 @util.propertycache |
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276 def __contains__(self): |
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277 return self._set.__contains__ |
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278 |
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279 def __nonzero__(self): |
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280 return bool(len(self)) |
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281 |
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282 __bool__ = __nonzero__ |
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283 |
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284 def sort(self, reverse=False): |
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285 self._ascending = not bool(reverse) |
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286 self._istopo = False |
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287 |
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288 def reverse(self): |
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289 if self._ascending is None: |
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290 self._list.reverse() |
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291 else: |
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292 self._ascending = not self._ascending |
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293 self._istopo = False |
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294 |
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295 def __len__(self): |
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296 if '_list' in self.__dict__: |
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297 return len(self._list) |
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298 else: |
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299 return len(self._set) |
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300 |
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301 def isascending(self): |
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302 """Returns True if the collection is ascending order, False if not. |
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303 |
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304 This is part of the mandatory API for smartset.""" |
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305 if len(self) <= 1: |
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306 return True |
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307 return self._ascending is not None and self._ascending |
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308 |
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309 def isdescending(self): |
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310 """Returns True if the collection is descending order, False if not. |
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311 |
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312 This is part of the mandatory API for smartset.""" |
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313 if len(self) <= 1: |
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314 return True |
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315 return self._ascending is not None and not self._ascending |
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316 |
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317 def istopo(self): |
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318 """Is the collection is in topographical order or not. |
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319 |
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320 This is part of the mandatory API for smartset.""" |
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321 if len(self) <= 1: |
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322 return True |
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323 return self._istopo |
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324 |
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325 def first(self): |
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326 if self: |
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327 if self._ascending is None: |
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328 return self._list[0] |
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329 elif self._ascending: |
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330 return self._asclist[0] |
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331 else: |
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332 return self._asclist[-1] |
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333 return None |
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334 |
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335 def last(self): |
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336 if self: |
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337 if self._ascending is None: |
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338 return self._list[-1] |
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339 elif self._ascending: |
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340 return self._asclist[-1] |
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341 else: |
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342 return self._asclist[0] |
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343 return None |
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344 |
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345 def _fastsetop(self, other, op): |
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346 # try to use native set operations as fast paths |
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347 if ( |
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348 type(other) is baseset |
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349 and '_set' in other.__dict__ |
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350 and '_set' in self.__dict__ |
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351 and self._ascending is not None |
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352 ): |
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353 s = baseset( |
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354 data=getattr(self._set, op)(other._set), istopo=self._istopo |
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355 ) |
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356 s._ascending = self._ascending |
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357 else: |
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358 s = getattr(super(baseset, self), op)(other) |
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359 return s |
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360 |
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361 def __and__(self, other): |
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362 return self._fastsetop(other, b'__and__') |
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363 |
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364 def __sub__(self, other): |
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365 return self._fastsetop(other, b'__sub__') |
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366 |
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367 def _slice(self, start, stop): |
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368 # creating new list should be generally cheaper than iterating items |
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369 if self._ascending is None: |
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370 return baseset(self._list[start:stop], istopo=self._istopo) |
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371 |
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372 data = self._asclist |
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373 if not self._ascending: |
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374 start, stop = max(len(data) - stop, 0), max(len(data) - start, 0) |
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375 s = baseset(data[start:stop], istopo=self._istopo) |
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376 s._ascending = self._ascending |
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377 return s |
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378 |
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379 @encoding.strmethod |
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380 def __repr__(self): |
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381 d = {None: b'', False: b'-', True: b'+'}[self._ascending] |
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382 s = stringutil.buildrepr(self._datarepr) |
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383 if not s: |
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384 l = self._list |
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385 # if _list has been built from a set, it might have a different |
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386 # order from one python implementation to another. |
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387 # We fallback to the sorted version for a stable output. |
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388 if self._ascending is not None: |
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389 l = self._asclist |
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390 s = pycompat.byterepr(l) |
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391 return b'<%s%s %s>' % (_typename(self), d, s) |
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392 |
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393 |
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394 class filteredset(abstractsmartset): |
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395 """Duck type for baseset class which iterates lazily over the revisions in |
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396 the subset and contains a function which tests for membership in the |
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397 revset |
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398 """ |
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399 |
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400 def __init__(self, subset, condition=lambda x: True, condrepr=None): |
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401 """ |
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402 condition: a function that decide whether a revision in the subset |
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403 belongs to the revset or not. |
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404 condrepr: a tuple of (format, obj, ...), a function or an object that |
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405 provides a printable representation of the given condition. |
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406 """ |
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407 self._subset = subset |
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408 self._condition = condition |
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409 self._condrepr = condrepr |
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410 |
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411 def __contains__(self, x): |
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412 return x in self._subset and self._condition(x) |
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413 |
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414 def __iter__(self): |
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415 return self._iterfilter(self._subset) |
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416 |
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417 def _iterfilter(self, it): |
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418 cond = self._condition |
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419 for x in it: |
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420 if cond(x): |
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421 yield x |
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422 |
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423 @property |
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424 def fastasc(self): |
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425 it = self._subset.fastasc |
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426 if it is None: |
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427 return None |
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428 return lambda: self._iterfilter(it()) |
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429 |
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430 @property |
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431 def fastdesc(self): |
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432 it = self._subset.fastdesc |
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433 if it is None: |
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434 return None |
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435 return lambda: self._iterfilter(it()) |
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436 |
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437 def __nonzero__(self): |
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438 fast = None |
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439 candidates = [ |
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440 self.fastasc if self.isascending() else None, |
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441 self.fastdesc if self.isdescending() else None, |
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442 self.fastasc, |
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443 self.fastdesc, |
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444 ] |
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445 for candidate in candidates: |
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446 if candidate is not None: |
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447 fast = candidate |
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448 break |
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449 |
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450 if fast is not None: |
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451 it = fast() |
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452 else: |
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453 it = self |
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454 |
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455 for r in it: |
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456 return True |
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457 return False |
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458 |
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459 __bool__ = __nonzero__ |
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460 |
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461 def __len__(self): |
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462 # Basic implementation to be changed in future patches. |
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463 # until this gets improved, we use generator expression |
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464 # here, since list comprehensions are free to call __len__ again |
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465 # causing infinite recursion |
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466 l = baseset(r for r in self) |
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467 return len(l) |
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468 |
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469 def sort(self, reverse=False): |
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470 self._subset.sort(reverse=reverse) |
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471 |
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472 def reverse(self): |
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473 self._subset.reverse() |
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474 |
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475 def isascending(self): |
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476 return self._subset.isascending() |
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477 |
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478 def isdescending(self): |
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479 return self._subset.isdescending() |
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480 |
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481 def istopo(self): |
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482 return self._subset.istopo() |
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483 |
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484 def first(self): |
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485 for x in self: |
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486 return x |
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487 return None |
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|
488 |
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489 def last(self): |
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490 it = None |
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|
491 if self.isascending(): |
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|
492 it = self.fastdesc |
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493 elif self.isdescending(): |
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494 it = self.fastasc |
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495 if it is not None: |
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496 for x in it(): |
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497 return x |
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498 return None # empty case |
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499 else: |
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500 x = None |
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501 for x in self: |
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502 pass |
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503 return x |
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504 |
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|
505 @encoding.strmethod |
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506 def __repr__(self): |
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507 xs = [pycompat.byterepr(self._subset)] |
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508 s = stringutil.buildrepr(self._condrepr) |
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509 if s: |
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510 xs.append(s) |
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511 return b'<%s %s>' % (_typename(self), b', '.join(xs)) |
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512 |
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513 |
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514 def _iterordered(ascending, iter1, iter2): |
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515 """produce an ordered iteration from two iterators with the same order |
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516 |
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517 The ascending is used to indicated the iteration direction. |
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518 """ |
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519 choice = max |
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520 if ascending: |
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521 choice = min |
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522 |
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523 val1 = None |
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524 val2 = None |
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525 try: |
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526 # Consume both iterators in an ordered way until one is empty |
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527 while True: |
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528 if val1 is None: |
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529 val1 = next(iter1) |
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530 if val2 is None: |
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531 val2 = next(iter2) |
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532 n = choice(val1, val2) |
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533 yield n |
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534 if val1 == n: |
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535 val1 = None |
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536 if val2 == n: |
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537 val2 = None |
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538 except StopIteration: |
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539 # Flush any remaining values and consume the other one |
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540 it = iter2 |
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541 if val1 is not None: |
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542 yield val1 |
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543 it = iter1 |
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544 elif val2 is not None: |
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545 # might have been equality and both are empty |
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|
546 yield val2 |
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547 for val in it: |
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548 yield val |
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|
549 |
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550 |
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551 class addset(abstractsmartset): |
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552 """Represent the addition of two sets |
17c89e5a5627
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diff
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|
553 |
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20707
diff
changeset
|
554 Wrapper structure for lazily adding two structures without losing much |
20694
621c94378d0d
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diff
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|
555 performance on the __contains__ method |
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20707
diff
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|
556 |
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c152e538b85b
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557 If the ascending attribute is set, that means the two structures are |
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diff
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|
558 ordered in either an ascending or descending way. Therefore, we can add |
21024
7731a2281cf0
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Mads Kiilerich <madski@unity3d.com>
parents:
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diff
changeset
|
559 them maintaining the order by iterating over both at the same time |
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|
560 |
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561 >>> xs = baseset([0, 3, 2]) |
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562 >>> ys = baseset([5, 2, 4]) |
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|
563 |
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|
564 >>> rs = addset(xs, ys) |
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|
565 >>> bool(rs), 0 in rs, 1 in rs, 5 in rs, rs.first(), rs.last() |
263bbed1833c
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|
566 (True, True, False, True, 0, 4) |
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|
567 >>> rs = addset(xs, baseset([])) |
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|
568 >>> bool(rs), 0 in rs, 1 in rs, rs.first(), rs.last() |
263bbed1833c
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|
569 (True, True, False, 0, 2) |
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|
570 >>> rs = addset(baseset([]), baseset([])) |
263bbed1833c
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|
571 >>> bool(rs), 0 in rs, rs.first(), rs.last() |
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|
572 (False, False, None, None) |
263bbed1833c
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|
573 |
263bbed1833c
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|
574 iterate unsorted: |
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diff
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|
575 >>> rs = addset(xs, ys) |
28717
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Maciej Fijalkowski <fijall@gmail.com>
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diff
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|
576 >>> # (use generator because pypy could call len()) |
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|
577 >>> list(x for x in rs) # without _genlist |
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|
578 [0, 3, 2, 5, 4] |
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|
579 >>> assert not rs._genlist |
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|
580 >>> len(rs) |
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|
581 5 |
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|
582 >>> [x for x in rs] # with _genlist |
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|
583 [0, 3, 2, 5, 4] |
263bbed1833c
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|
584 >>> assert rs._genlist |
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|
585 |
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|
586 iterate ascending: |
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|
587 >>> rs = addset(xs, ys, ascending=True) |
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|
588 >>> # (use generator because pypy could call len()) |
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|
589 >>> list(x for x in rs), list(x for x in rs.fastasc()) # without _asclist |
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|
590 ([0, 2, 3, 4, 5], [0, 2, 3, 4, 5]) |
263bbed1833c
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parents:
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diff
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|
591 >>> assert not rs._asclist |
25115
5548f558db3d
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Pierre-Yves David <pierre-yves.david@fb.com>
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diff
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|
592 >>> len(rs) |
5548f558db3d
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parents:
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diff
changeset
|
593 5 |
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parents:
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diff
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|
594 >>> [x for x in rs], [x for x in rs.fastasc()] |
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parents:
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diff
changeset
|
595 ([0, 2, 3, 4, 5], [0, 2, 3, 4, 5]) |
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diff
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|
596 >>> assert rs._asclist |
263bbed1833c
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|
597 |
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diff
changeset
|
598 iterate descending: |
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diff
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|
599 >>> rs = addset(xs, ys, ascending=False) |
28717
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diff
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|
600 >>> # (use generator because pypy could call len()) |
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diff
changeset
|
601 >>> list(x for x in rs), list(x for x in rs.fastdesc()) # without _asclist |
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602 ([5, 4, 3, 2, 0], [5, 4, 3, 2, 0]) |
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603 >>> assert not rs._asclist |
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604 >>> len(rs) |
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605 5 |
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606 >>> [x for x in rs], [x for x in rs.fastdesc()] |
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607 ([5, 4, 3, 2, 0], [5, 4, 3, 2, 0]) |
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608 >>> assert rs._asclist |
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609 |
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610 iterate ascending without fastasc: |
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611 >>> rs = addset(xs, generatorset(ys), ascending=True) |
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612 >>> assert rs.fastasc is None |
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613 >>> [x for x in rs] |
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614 [0, 2, 3, 4, 5] |
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615 |
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616 iterate descending without fastdesc: |
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617 >>> rs = addset(generatorset(xs), ys, ascending=False) |
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618 >>> assert rs.fastdesc is None |
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619 >>> [x for x in rs] |
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620 [5, 4, 3, 2, 0] |
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621 """ |
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622 |
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623 def __init__(self, revs1, revs2, ascending=None): |
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624 self._r1 = revs1 |
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625 self._r2 = revs2 |
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626 self._iter = None |
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627 self._ascending = ascending |
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628 self._genlist = None |
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629 self._asclist = None |
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630 |
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631 def __len__(self): |
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632 return len(self._list) |
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633 |
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634 def __nonzero__(self): |
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635 return bool(self._r1) or bool(self._r2) |
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636 |
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637 __bool__ = __nonzero__ |
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638 |
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639 @util.propertycache |
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640 def _list(self): |
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641 if not self._genlist: |
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642 self._genlist = baseset(iter(self)) |
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643 return self._genlist |
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644 |
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645 def __iter__(self): |
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646 """Iterate over both collections without repeating elements |
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647 |
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648 If the ascending attribute is not set, iterate over the first one and |
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649 then over the second one checking for membership on the first one so we |
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650 dont yield any duplicates. |
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651 |
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652 If the ascending attribute is set, iterate over both collections at the |
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653 same time, yielding only one value at a time in the given order. |
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654 """ |
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655 if self._ascending is None: |
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656 if self._genlist: |
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657 return iter(self._genlist) |
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658 |
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659 def arbitraryordergen(): |
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660 for r in self._r1: |
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661 yield r |
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662 inr1 = self._r1.__contains__ |
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663 for r in self._r2: |
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664 if not inr1(r): |
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665 yield r |
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666 |
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667 return arbitraryordergen() |
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668 # try to use our own fast iterator if it exists |
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669 self._trysetasclist() |
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670 if self._ascending: |
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671 attr = 'fastasc' |
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672 else: |
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673 attr = 'fastdesc' |
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674 it = getattr(self, attr) |
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675 if it is not None: |
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676 return it() |
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677 # maybe half of the component supports fast |
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678 # get iterator for _r1 |
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679 iter1 = getattr(self._r1, attr) |
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680 if iter1 is None: |
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681 # let's avoid side effect (not sure it matters) |
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682 iter1 = iter(sorted(self._r1, reverse=not self._ascending)) |
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683 else: |
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684 iter1 = iter1() |
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685 # get iterator for _r2 |
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686 iter2 = getattr(self._r2, attr) |
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687 if iter2 is None: |
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688 # let's avoid side effect (not sure it matters) |
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689 iter2 = iter(sorted(self._r2, reverse=not self._ascending)) |
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690 else: |
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691 iter2 = iter2() |
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692 return _iterordered(self._ascending, iter1, iter2) |
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693 |
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694 def _trysetasclist(self): |
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695 """populate the _asclist attribute if possible and necessary""" |
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696 if self._genlist is not None and self._asclist is None: |
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697 self._asclist = sorted(self._genlist) |
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698 |
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699 @property |
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700 def fastasc(self): |
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701 self._trysetasclist() |
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702 if self._asclist is not None: |
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703 return self._asclist.__iter__ |
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704 iter1 = self._r1.fastasc |
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705 iter2 = self._r2.fastasc |
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706 if None in (iter1, iter2): |
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707 return None |
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708 return lambda: _iterordered(True, iter1(), iter2()) |
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709 |
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710 @property |
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22741
diff
changeset
|
711 def fastdesc(self): |
22859
513c0ba61db8
addset: do lazy sorting
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22857
diff
changeset
|
712 self._trysetasclist() |
513c0ba61db8
addset: do lazy sorting
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22857
diff
changeset
|
713 if self._asclist is not None: |
513c0ba61db8
addset: do lazy sorting
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22857
diff
changeset
|
714 return self._asclist.__reversed__ |
22742
6bbc26adcc6a
addset: offer a fastasc and fastdesc methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22741
diff
changeset
|
715 iter1 = self._r1.fastdesc |
6bbc26adcc6a
addset: offer a fastasc and fastdesc methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22741
diff
changeset
|
716 iter2 = self._r2.fastdesc |
6bbc26adcc6a
addset: offer a fastasc and fastdesc methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22741
diff
changeset
|
717 if None in (iter1, iter2): |
6bbc26adcc6a
addset: offer a fastasc and fastdesc methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22741
diff
changeset
|
718 return None |
25131
adfe4d9680bf
revset: extract addset._iterordered to free function
Yuya Nishihara <yuya@tcha.org>
parents:
25130
diff
changeset
|
719 return lambda: _iterordered(False, iter1(), iter2()) |
22741
ef2c1ea8fb2c
addset: split simple and ordered iteration
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22740
diff
changeset
|
720 |
20694
621c94378d0d
revset: added addset class with its basic methods
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20693
diff
changeset
|
721 def __contains__(self, x): |
621c94378d0d
revset: added addset class with its basic methods
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20693
diff
changeset
|
722 return x in self._r1 or x in self._r2 |
621c94378d0d
revset: added addset class with its basic methods
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20693
diff
changeset
|
723 |
20724
e9a64b3f2925
revset: added sort method in addset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20723
diff
changeset
|
724 def sort(self, reverse=False): |
e9a64b3f2925
revset: added sort method in addset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20723
diff
changeset
|
725 """Sort the added set |
e9a64b3f2925
revset: added sort method in addset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20723
diff
changeset
|
726 |
e9a64b3f2925
revset: added sort method in addset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20723
diff
changeset
|
727 For this we use the cached list with all the generated values and if we |
e9a64b3f2925
revset: added sort method in addset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20723
diff
changeset
|
728 know they are ascending or descending we can sort them in a smart way. |
e9a64b3f2925
revset: added sort method in addset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20723
diff
changeset
|
729 """ |
22859
513c0ba61db8
addset: do lazy sorting
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22857
diff
changeset
|
730 self._ascending = not reverse |
20724
e9a64b3f2925
revset: added sort method in addset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20723
diff
changeset
|
731 |
20733
adf4ec7e6f60
revset: added isascending and isdescending methods to _addset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20732
diff
changeset
|
732 def isascending(self): |
adf4ec7e6f60
revset: added isascending and isdescending methods to _addset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20732
diff
changeset
|
733 return self._ascending is not None and self._ascending |
adf4ec7e6f60
revset: added isascending and isdescending methods to _addset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20732
diff
changeset
|
734 |
adf4ec7e6f60
revset: added isascending and isdescending methods to _addset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20732
diff
changeset
|
735 def isdescending(self): |
adf4ec7e6f60
revset: added isascending and isdescending methods to _addset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20732
diff
changeset
|
736 return self._ascending is not None and not self._ascending |
adf4ec7e6f60
revset: added isascending and isdescending methods to _addset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20732
diff
changeset
|
737 |
29346
38e0c83c7ee4
revset: record if a set is in topographical order
Martijn Pieters <mjpieters@fb.com>
parents:
29304
diff
changeset
|
738 def istopo(self): |
38e0c83c7ee4
revset: record if a set is in topographical order
Martijn Pieters <mjpieters@fb.com>
parents:
29304
diff
changeset
|
739 # not worth the trouble asserting if the two sets combined are still |
38e0c83c7ee4
revset: record if a set is in topographical order
Martijn Pieters <mjpieters@fb.com>
parents:
29304
diff
changeset
|
740 # in topographical order. Use the sort() predicate to explicitly sort |
38e0c83c7ee4
revset: record if a set is in topographical order
Martijn Pieters <mjpieters@fb.com>
parents:
29304
diff
changeset
|
741 # again instead. |
38e0c83c7ee4
revset: record if a set is in topographical order
Martijn Pieters <mjpieters@fb.com>
parents:
29304
diff
changeset
|
742 return False |
38e0c83c7ee4
revset: record if a set is in topographical order
Martijn Pieters <mjpieters@fb.com>
parents:
29304
diff
changeset
|
743 |
20723
fb9852c46a42
revset: added reverse method to addset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20722
diff
changeset
|
744 def reverse(self): |
22859
513c0ba61db8
addset: do lazy sorting
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22857
diff
changeset
|
745 if self._ascending is None: |
513c0ba61db8
addset: do lazy sorting
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22857
diff
changeset
|
746 self._list.reverse() |
513c0ba61db8
addset: do lazy sorting
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22857
diff
changeset
|
747 else: |
20723
fb9852c46a42
revset: added reverse method to addset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20722
diff
changeset
|
748 self._ascending = not self._ascending |
fb9852c46a42
revset: added reverse method to addset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20722
diff
changeset
|
749 |
22810
7f97cb12782f
addset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22809
diff
changeset
|
750 def first(self): |
23127
7361d8244efb
addset: fix `first` and `last` on sorted addset (issue4426)
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
23115
diff
changeset
|
751 for x in self: |
7361d8244efb
addset: fix `first` and `last` on sorted addset (issue4426)
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
23115
diff
changeset
|
752 return x |
22810
7f97cb12782f
addset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22809
diff
changeset
|
753 return None |
7f97cb12782f
addset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22809
diff
changeset
|
754 |
7f97cb12782f
addset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22809
diff
changeset
|
755 def last(self): |
23127
7361d8244efb
addset: fix `first` and `last` on sorted addset (issue4426)
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
23115
diff
changeset
|
756 self.reverse() |
7361d8244efb
addset: fix `first` and `last` on sorted addset (issue4426)
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
23115
diff
changeset
|
757 val = self.first() |
7361d8244efb
addset: fix `first` and `last` on sorted addset (issue4426)
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
23115
diff
changeset
|
758 self.reverse() |
7361d8244efb
addset: fix `first` and `last` on sorted addset (issue4426)
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
23115
diff
changeset
|
759 return val |
22810
7f97cb12782f
addset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22809
diff
changeset
|
760 |
35901
f0827211eb1f
py3: build repr() of smartset as bytes then convert to str
Yuya Nishihara <yuya@tcha.org>
parents:
35838
diff
changeset
|
761 @encoding.strmethod |
24457
c5022f3579b9
revset: add __repr__ to all smartset classes
Yuya Nishihara <yuya@tcha.org>
parents:
24446
diff
changeset
|
762 def __repr__(self): |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
763 d = {None: b'', False: b'-', True: b'+'}[self._ascending] |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
764 return b'<%s%s %r, %r>' % (_typename(self), d, self._r1, self._r2) |
24457
c5022f3579b9
revset: add __repr__ to all smartset classes
Yuya Nishihara <yuya@tcha.org>
parents:
24446
diff
changeset
|
765 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
40233
diff
changeset
|
766 |
22795
c21342159fad
generatorset: drop the leading underscore in the class name
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22794
diff
changeset
|
767 class generatorset(abstractsmartset): |
20705
9cc2249a9461
revset: made generatorset a private class
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20703
diff
changeset
|
768 """Wrap a generator for lazy iteration |
9cc2249a9461
revset: made generatorset a private class
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20703
diff
changeset
|
769 |
9cc2249a9461
revset: made generatorset a private class
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20703
diff
changeset
|
770 Wrapper structure for generators that provides lazy membership and can |
20540
fa16c710a3d8
revset: added cached generated list on generatorset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20538
diff
changeset
|
771 be iterated more than once. |
fa16c710a3d8
revset: added cached generated list on generatorset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20538
diff
changeset
|
772 When asked for membership it generates values until either it finds the |
fa16c710a3d8
revset: added cached generated list on generatorset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20538
diff
changeset
|
773 requested one or has gone through all the elements in the generator |
33109
247bae545061
smartset: fix generatorset.last() to not return the first element (issue5609)
Yuya Nishihara <yuya@tcha.org>
parents:
33072
diff
changeset
|
774 |
247bae545061
smartset: fix generatorset.last() to not return the first element (issue5609)
Yuya Nishihara <yuya@tcha.org>
parents:
33072
diff
changeset
|
775 >>> xs = generatorset([0, 1, 4], iterasc=True) |
247bae545061
smartset: fix generatorset.last() to not return the first element (issue5609)
Yuya Nishihara <yuya@tcha.org>
parents:
33072
diff
changeset
|
776 >>> assert xs.last() == xs.last() |
247bae545061
smartset: fix generatorset.last() to not return the first element (issue5609)
Yuya Nishihara <yuya@tcha.org>
parents:
33072
diff
changeset
|
777 >>> xs.last() # cached |
247bae545061
smartset: fix generatorset.last() to not return the first element (issue5609)
Yuya Nishihara <yuya@tcha.org>
parents:
33072
diff
changeset
|
778 4 |
20540
fa16c710a3d8
revset: added cached generated list on generatorset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20538
diff
changeset
|
779 """ |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
40233
diff
changeset
|
780 |
35501
12a46ad67a3c
smartset: split generatorset classes to avoid cycle
Gregory Szorc <gregory.szorc@gmail.com>
parents:
34070
diff
changeset
|
781 def __new__(cls, gen, iterasc=None): |
12a46ad67a3c
smartset: split generatorset classes to avoid cycle
Gregory Szorc <gregory.szorc@gmail.com>
parents:
34070
diff
changeset
|
782 if iterasc is None: |
12a46ad67a3c
smartset: split generatorset classes to avoid cycle
Gregory Szorc <gregory.szorc@gmail.com>
parents:
34070
diff
changeset
|
783 typ = cls |
12a46ad67a3c
smartset: split generatorset classes to avoid cycle
Gregory Szorc <gregory.szorc@gmail.com>
parents:
34070
diff
changeset
|
784 elif iterasc: |
12a46ad67a3c
smartset: split generatorset classes to avoid cycle
Gregory Szorc <gregory.szorc@gmail.com>
parents:
34070
diff
changeset
|
785 typ = _generatorsetasc |
12a46ad67a3c
smartset: split generatorset classes to avoid cycle
Gregory Szorc <gregory.szorc@gmail.com>
parents:
34070
diff
changeset
|
786 else: |
12a46ad67a3c
smartset: split generatorset classes to avoid cycle
Gregory Szorc <gregory.szorc@gmail.com>
parents:
34070
diff
changeset
|
787 typ = _generatorsetdesc |
12a46ad67a3c
smartset: split generatorset classes to avoid cycle
Gregory Szorc <gregory.szorc@gmail.com>
parents:
34070
diff
changeset
|
788 |
12a46ad67a3c
smartset: split generatorset classes to avoid cycle
Gregory Szorc <gregory.szorc@gmail.com>
parents:
34070
diff
changeset
|
789 return super(generatorset, cls).__new__(typ) |
12a46ad67a3c
smartset: split generatorset classes to avoid cycle
Gregory Szorc <gregory.szorc@gmail.com>
parents:
34070
diff
changeset
|
790 |
22755
f9a825b593be
generatorset: make it possible to use gen as fastasc or fastdesc
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22754
diff
changeset
|
791 def __init__(self, gen, iterasc=None): |
20739
1b4f2399f3c4
revset: add documentation and comment for _generatorset
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20738
diff
changeset
|
792 """ |
1b4f2399f3c4
revset: add documentation and comment for _generatorset
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20738
diff
changeset
|
793 gen: a generator producing the values for the generatorset. |
1b4f2399f3c4
revset: add documentation and comment for _generatorset
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20738
diff
changeset
|
794 """ |
20536
532b114a6e02
revset: added generatorset class with cached __contains__ method
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20534
diff
changeset
|
795 self._gen = gen |
22798
586d7058ea48
generatorset: get list-based fast iterations after the generator is consumed
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22797
diff
changeset
|
796 self._asclist = None |
20536
532b114a6e02
revset: added generatorset class with cached __contains__ method
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20534
diff
changeset
|
797 self._cache = {} |
22796
43f664bf2e1e
generatorset: stop using a base as the _genlist
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22795
diff
changeset
|
798 self._genlist = [] |
20703
e07b1fd30805
revset: added sort methods to generatorsets
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20695
diff
changeset
|
799 self._finished = False |
22800
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
800 self._ascending = True |
20540
fa16c710a3d8
revset: added cached generated list on generatorset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20538
diff
changeset
|
801 |
22739
4ed47a1b2d24
generatorset: implement __nonzero__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22738
diff
changeset
|
802 def __nonzero__(self): |
24936
2aa94b6fe51c
revset: make generatorset.__nonzero__ lazy
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24932
diff
changeset
|
803 # Do not use 'for r in self' because it will enforce the iteration |
2aa94b6fe51c
revset: make generatorset.__nonzero__ lazy
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24932
diff
changeset
|
804 # order (default ascending), possibly unrolling a whole descending |
2aa94b6fe51c
revset: make generatorset.__nonzero__ lazy
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24932
diff
changeset
|
805 # iterator. |
2aa94b6fe51c
revset: make generatorset.__nonzero__ lazy
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24932
diff
changeset
|
806 if self._genlist: |
2aa94b6fe51c
revset: make generatorset.__nonzero__ lazy
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24932
diff
changeset
|
807 return True |
2aa94b6fe51c
revset: make generatorset.__nonzero__ lazy
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24932
diff
changeset
|
808 for r in self._consumegen(): |
22739
4ed47a1b2d24
generatorset: implement __nonzero__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22738
diff
changeset
|
809 return True |
4ed47a1b2d24
generatorset: implement __nonzero__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22738
diff
changeset
|
810 return False |
4ed47a1b2d24
generatorset: implement __nonzero__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22738
diff
changeset
|
811 |
31476
413b44003462
py3: add __bool__ to every class defining __nonzero__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
31446
diff
changeset
|
812 __bool__ = __nonzero__ |
413b44003462
py3: add __bool__ to every class defining __nonzero__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
31446
diff
changeset
|
813 |
20536
532b114a6e02
revset: added generatorset class with cached __contains__ method
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20534
diff
changeset
|
814 def __contains__(self, x): |
532b114a6e02
revset: added generatorset class with cached __contains__ method
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20534
diff
changeset
|
815 if x in self._cache: |
532b114a6e02
revset: added generatorset class with cached __contains__ method
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20534
diff
changeset
|
816 return self._cache[x] |
532b114a6e02
revset: added generatorset class with cached __contains__ method
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20534
diff
changeset
|
817 |
20828
3210b7930899
revset: improve performance of _generatorset.__contains__ (issue 4201)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
20780
diff
changeset
|
818 # Use new values only, as existing values would be cached. |
3210b7930899
revset: improve performance of _generatorset.__contains__ (issue 4201)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
20780
diff
changeset
|
819 for l in self._consumegen(): |
20634
f2bb7ba59456
revset: changed generatorset code to remove unnecesary function call
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20613
diff
changeset
|
820 if l == x: |
f2bb7ba59456
revset: changed generatorset code to remove unnecesary function call
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20613
diff
changeset
|
821 return True |
20536
532b114a6e02
revset: added generatorset class with cached __contains__ method
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20534
diff
changeset
|
822 |
532b114a6e02
revset: added generatorset class with cached __contains__ method
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20534
diff
changeset
|
823 self._cache[x] = False |
532b114a6e02
revset: added generatorset class with cached __contains__ method
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20534
diff
changeset
|
824 return False |
532b114a6e02
revset: added generatorset class with cached __contains__ method
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20534
diff
changeset
|
825 |
532b114a6e02
revset: added generatorset class with cached __contains__ method
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20534
diff
changeset
|
826 def __iter__(self): |
22800
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
827 if self._ascending: |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
828 it = self.fastasc |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
829 else: |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
830 it = self.fastdesc |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
831 if it is not None: |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
832 return it() |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
833 # we need to consume the iterator |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
834 for x in self._consumegen(): |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
835 pass |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
836 # recall the same code |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
837 return iter(self) |
22797
61ecabeeadb3
generatorset: move iteration code into _iterator
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22796
diff
changeset
|
838 |
61ecabeeadb3
generatorset: move iteration code into _iterator
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22796
diff
changeset
|
839 def _iterator(self): |
20833
47d43e2323c5
revset: fix generatorset race condition
Durham Goode <durham@fb.com>
parents:
20829
diff
changeset
|
840 if self._finished: |
22670
44dce874de97
revset: rely on built in iterator when possible in _generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22669
diff
changeset
|
841 return iter(self._genlist) |
20833
47d43e2323c5
revset: fix generatorset race condition
Durham Goode <durham@fb.com>
parents:
20829
diff
changeset
|
842 |
22494
14f6cebfcb8a
revset: document the choice made in __generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22487
diff
changeset
|
843 # We have to use this complex iteration strategy to allow multiple |
14f6cebfcb8a
revset: document the choice made in __generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22487
diff
changeset
|
844 # iterations at the same time. We need to be able to catch revision |
23139
e53f6b72a0e4
spelling: fixes from proofreading of spell checker issues
Mads Kiilerich <madski@unity3d.com>
parents:
23127
diff
changeset
|
845 # removed from _consumegen and added to genlist in another instance. |
22494
14f6cebfcb8a
revset: document the choice made in __generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22487
diff
changeset
|
846 # |
14f6cebfcb8a
revset: document the choice made in __generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22487
diff
changeset
|
847 # Getting rid of it would provide an about 15% speed up on this |
14f6cebfcb8a
revset: document the choice made in __generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22487
diff
changeset
|
848 # iteration. |
20833
47d43e2323c5
revset: fix generatorset race condition
Durham Goode <durham@fb.com>
parents:
20829
diff
changeset
|
849 genlist = self._genlist |
31446
9a94239e4f12
py3: use next() to obtain next item from inner generator of generatorset
Yuya Nishihara <yuya@tcha.org>
parents:
31127
diff
changeset
|
850 nextgen = self._consumegen() |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
40233
diff
changeset
|
851 _len, _next = len, next # cache global lookup |
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
40233
diff
changeset
|
852 |
22670
44dce874de97
revset: rely on built in iterator when possible in _generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22669
diff
changeset
|
853 def gen(): |
44dce874de97
revset: rely on built in iterator when possible in _generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22669
diff
changeset
|
854 i = 0 |
44dce874de97
revset: rely on built in iterator when possible in _generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22669
diff
changeset
|
855 while True: |
44dce874de97
revset: rely on built in iterator when possible in _generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22669
diff
changeset
|
856 if i < _len(genlist): |
44dce874de97
revset: rely on built in iterator when possible in _generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22669
diff
changeset
|
857 yield genlist[i] |
44dce874de97
revset: rely on built in iterator when possible in _generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22669
diff
changeset
|
858 else: |
32977
27ba0d8dc26c
py3: catch StopIteration from next() in generatorset
Martin von Zweigbergk <martinvonz@google.com>
parents:
32821
diff
changeset
|
859 try: |
27ba0d8dc26c
py3: catch StopIteration from next() in generatorset
Martin von Zweigbergk <martinvonz@google.com>
parents:
32821
diff
changeset
|
860 yield _next(nextgen) |
27ba0d8dc26c
py3: catch StopIteration from next() in generatorset
Martin von Zweigbergk <martinvonz@google.com>
parents:
32821
diff
changeset
|
861 except StopIteration: |
27ba0d8dc26c
py3: catch StopIteration from next() in generatorset
Martin von Zweigbergk <martinvonz@google.com>
parents:
32821
diff
changeset
|
862 return |
22670
44dce874de97
revset: rely on built in iterator when possible in _generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22669
diff
changeset
|
863 i += 1 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
40233
diff
changeset
|
864 |
22670
44dce874de97
revset: rely on built in iterator when possible in _generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22669
diff
changeset
|
865 return gen() |
20828
3210b7930899
revset: improve performance of _generatorset.__contains__ (issue 4201)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
20780
diff
changeset
|
866 |
3210b7930899
revset: improve performance of _generatorset.__contains__ (issue 4201)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
20780
diff
changeset
|
867 def _consumegen(self): |
22528
b6dc3b79bb25
revset: avoid in loop lookup in _generatorset._consumegen
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22527
diff
changeset
|
868 cache = self._cache |
b6dc3b79bb25
revset: avoid in loop lookup in _generatorset._consumegen
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22527
diff
changeset
|
869 genlist = self._genlist.append |
20634
f2bb7ba59456
revset: changed generatorset code to remove unnecesary function call
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20613
diff
changeset
|
870 for item in self._gen: |
22528
b6dc3b79bb25
revset: avoid in loop lookup in _generatorset._consumegen
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22527
diff
changeset
|
871 cache[item] = True |
b6dc3b79bb25
revset: avoid in loop lookup in _generatorset._consumegen
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22527
diff
changeset
|
872 genlist(item) |
20634
f2bb7ba59456
revset: changed generatorset code to remove unnecesary function call
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20613
diff
changeset
|
873 yield item |
22798
586d7058ea48
generatorset: get list-based fast iterations after the generator is consumed
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22797
diff
changeset
|
874 if not self._finished: |
586d7058ea48
generatorset: get list-based fast iterations after the generator is consumed
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22797
diff
changeset
|
875 self._finished = True |
586d7058ea48
generatorset: get list-based fast iterations after the generator is consumed
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22797
diff
changeset
|
876 asc = self._genlist[:] |
586d7058ea48
generatorset: get list-based fast iterations after the generator is consumed
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22797
diff
changeset
|
877 asc.sort() |
586d7058ea48
generatorset: get list-based fast iterations after the generator is consumed
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22797
diff
changeset
|
878 self._asclist = asc |
586d7058ea48
generatorset: get list-based fast iterations after the generator is consumed
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22797
diff
changeset
|
879 self.fastasc = asc.__iter__ |
586d7058ea48
generatorset: get list-based fast iterations after the generator is consumed
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22797
diff
changeset
|
880 self.fastdesc = asc.__reversed__ |
20703
e07b1fd30805
revset: added sort methods to generatorsets
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20695
diff
changeset
|
881 |
22996
a43d929d1fa1
generatorset: implement __len__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22995
diff
changeset
|
882 def __len__(self): |
a43d929d1fa1
generatorset: implement __len__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22995
diff
changeset
|
883 for x in self._consumegen(): |
a43d929d1fa1
generatorset: implement __len__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22995
diff
changeset
|
884 pass |
a43d929d1fa1
generatorset: implement __len__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22995
diff
changeset
|
885 return len(self._genlist) |
a43d929d1fa1
generatorset: implement __len__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22995
diff
changeset
|
886 |
20703
e07b1fd30805
revset: added sort methods to generatorsets
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20695
diff
changeset
|
887 def sort(self, reverse=False): |
22800
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
888 self._ascending = not reverse |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
889 |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
890 def reverse(self): |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
891 self._ascending = not self._ascending |
20703
e07b1fd30805
revset: added sort methods to generatorsets
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20695
diff
changeset
|
892 |
22801
6af9e9b6af39
generatorset: implement isascending and isdescending
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22800
diff
changeset
|
893 def isascending(self): |
6af9e9b6af39
generatorset: implement isascending and isdescending
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22800
diff
changeset
|
894 return self._ascending |
6af9e9b6af39
generatorset: implement isascending and isdescending
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22800
diff
changeset
|
895 |
6af9e9b6af39
generatorset: implement isascending and isdescending
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22800
diff
changeset
|
896 def isdescending(self): |
6af9e9b6af39
generatorset: implement isascending and isdescending
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22800
diff
changeset
|
897 return not self._ascending |
6af9e9b6af39
generatorset: implement isascending and isdescending
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22800
diff
changeset
|
898 |
29346
38e0c83c7ee4
revset: record if a set is in topographical order
Martijn Pieters <mjpieters@fb.com>
parents:
29304
diff
changeset
|
899 def istopo(self): |
38e0c83c7ee4
revset: record if a set is in topographical order
Martijn Pieters <mjpieters@fb.com>
parents:
29304
diff
changeset
|
900 # not worth the trouble asserting if the two sets combined are still |
38e0c83c7ee4
revset: record if a set is in topographical order
Martijn Pieters <mjpieters@fb.com>
parents:
29304
diff
changeset
|
901 # in topographical order. Use the sort() predicate to explicitly sort |
38e0c83c7ee4
revset: record if a set is in topographical order
Martijn Pieters <mjpieters@fb.com>
parents:
29304
diff
changeset
|
902 # again instead. |
38e0c83c7ee4
revset: record if a set is in topographical order
Martijn Pieters <mjpieters@fb.com>
parents:
29304
diff
changeset
|
903 return False |
38e0c83c7ee4
revset: record if a set is in topographical order
Martijn Pieters <mjpieters@fb.com>
parents:
29304
diff
changeset
|
904 |
22811
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
905 def first(self): |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
906 if self._ascending: |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
907 it = self.fastasc |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
908 else: |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
909 it = self.fastdesc |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
910 if it is None: |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
911 # we need to consume all and try again |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
912 for x in self._consumegen(): |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
913 pass |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
914 return self.first() |
25146
f542a2c89b60
generatorset: use 'next()' to simplify the code
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25145
diff
changeset
|
915 return next(it(), None) |
22811
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
916 |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
917 def last(self): |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
918 if self._ascending: |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
919 it = self.fastdesc |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
920 else: |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
921 it = self.fastasc |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
922 if it is None: |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
923 # we need to consume all and try again |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
924 for x in self._consumegen(): |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
925 pass |
33109
247bae545061
smartset: fix generatorset.last() to not return the first element (issue5609)
Yuya Nishihara <yuya@tcha.org>
parents:
33072
diff
changeset
|
926 return self.last() |
25146
f542a2c89b60
generatorset: use 'next()' to simplify the code
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25145
diff
changeset
|
927 return next(it(), None) |
22811
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
928 |
35901
f0827211eb1f
py3: build repr() of smartset as bytes then convert to str
Yuya Nishihara <yuya@tcha.org>
parents:
35838
diff
changeset
|
929 @encoding.strmethod |
24457
c5022f3579b9
revset: add __repr__ to all smartset classes
Yuya Nishihara <yuya@tcha.org>
parents:
24446
diff
changeset
|
930 def __repr__(self): |
43077
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
931 d = {False: b'-', True: b'+'}[self._ascending] |
687b865b95ad
formatting: byteify all mercurial/ and hgext/ string literals
Augie Fackler <augie@google.com>
parents:
43076
diff
changeset
|
932 return b'<%s%s>' % (_typename(self), d) |
35501
12a46ad67a3c
smartset: split generatorset classes to avoid cycle
Gregory Szorc <gregory.szorc@gmail.com>
parents:
34070
diff
changeset
|
933 |
43076
2372284d9457
formatting: blacken the codebase
Augie Fackler <augie@google.com>
parents:
40233
diff
changeset
|
934 |
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|
935 class _generatorsetasc(generatorset): |
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|
936 """Special case of generatorset optimized for ascending generators.""" |
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|
937 |
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|
938 fastasc = generatorset._iterator |
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|
939 |
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|
940 def __contains__(self, x): |
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|
941 if x in self._cache: |
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|
942 return self._cache[x] |
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|
943 |
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|
944 # Use new values only, as existing values would be cached. |
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|
945 for l in self._consumegen(): |
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|
946 if l == x: |
12a46ad67a3c
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|
947 return True |
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|
948 if l > x: |
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|
949 break |
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|
950 |
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|
951 self._cache[x] = False |
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|
952 return False |
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|
953 |
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|
954 |
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|
955 class _generatorsetdesc(generatorset): |
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|
956 """Special case of generatorset optimized for descending generators.""" |
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|
957 |
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|
958 fastdesc = generatorset._iterator |
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|
959 |
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|
960 def __contains__(self, x): |
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|
961 if x in self._cache: |
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|
962 return self._cache[x] |
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|
963 |
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|
964 # Use new values only, as existing values would be cached. |
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|
965 for l in self._consumegen(): |
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|
966 if l == x: |
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|
967 return True |
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|
968 if l < x: |
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|
969 break |
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|
970 |
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|
971 self._cache[x] = False |
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|
972 return False |
24457
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|
973 |
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|
974 |
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|
975 def spanset(repo, start=0, end=None): |
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|
976 """Create a spanset that represents a range of repository revisions |
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|
977 |
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|
978 start: first revision included the set (default to 0) |
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|
979 end: first revision excluded (last+1) (default to len(repo)) |
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|
980 |
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|
981 Spanset will be descending if `end` < `start`. |
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|
982 """ |
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|
983 if end is None: |
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|
984 end = len(repo) |
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|
985 ascending = start <= end |
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|
986 if not ascending: |
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|
987 start, end = end + 1, start + 1 |
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|
988 return _spanset(start, end, ascending, repo.changelog.filteredrevs) |
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|
989 |
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|
990 |
32818
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|
991 class _spanset(abstractsmartset): |
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|
992 """Duck type for baseset class which represents a range of revisions and |
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|
993 can work lazily and without having all the range in memory |
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|
994 |
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|
995 Note that spanset(x, y) behave almost like range(x, y) except for two |
20737
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|
996 notable points: |
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|
997 - when x < y it will be automatically descending, |
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|
998 - revision filtered with this repoview will be skipped. |
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|
999 |
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|
1000 """ |
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|
1001 |
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|
1002 def __init__(self, start, end, ascending, hiddenrevs): |
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|
1003 self._start = start |
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|
1004 self._end = end |
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1005 self._ascending = ascending |
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|
1006 self._hiddenrevs = hiddenrevs |
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diff
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|
1007 |
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|
1008 def sort(self, reverse=False): |
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|
1009 self._ascending = not reverse |
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1010 |
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|
1011 def reverse(self): |
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|
1012 self._ascending = not self._ascending |
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|
1013 |
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|
1014 def istopo(self): |
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|
1015 # not worth the trouble asserting if the two sets combined are still |
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|
1016 # in topographical order. Use the sort() predicate to explicitly sort |
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|
1017 # again instead. |
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|
1018 return False |
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|
1019 |
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|
1020 def _iterfilter(self, iterrange): |
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|
1021 s = self._hiddenrevs |
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|
1022 for r in iterrange: |
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|
1023 if r not in s: |
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|
1024 yield r |
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|
1025 |
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|
1026 def __iter__(self): |
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1027 if self._ascending: |
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|
1028 return self.fastasc() |
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|
1029 else: |
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|
1030 return self.fastdesc() |
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1031 |
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|
1032 def fastasc(self): |
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|
1033 iterrange = range(self._start, self._end) |
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|
1034 if self._hiddenrevs: |
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|
1035 return self._iterfilter(iterrange) |
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|
1036 return iter(iterrange) |
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1037 |
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|
1038 def fastdesc(self): |
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|
1039 iterrange = range(self._end - 1, self._start - 1, -1) |
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|
1040 if self._hiddenrevs: |
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1041 return self._iterfilter(iterrange) |
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|
1042 return iter(iterrange) |
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|
1043 |
21201
c8b9c6147108
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|
1044 def __contains__(self, rev): |
22526
1e6d2b6b37ea
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|
1045 hidden = self._hiddenrevs |
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|
1046 return (self._start <= rev < self._end) and not ( |
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|
1047 hidden and rev in hidden |
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|
1048 ) |
20482
a979078bd788
revset: added spanset class to represent revision ranges
Lucas Moscovicz <lmoscovicz@fb.com>
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20481
diff
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|
1049 |
20716
fa1ac5faa7c4
revset: added __nonzero__ method to spanset class
Lucas Moscovicz <lmoscovicz@fb.com>
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20714
diff
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|
1050 def __nonzero__(self): |
fa1ac5faa7c4
revset: added __nonzero__ method to spanset class
Lucas Moscovicz <lmoscovicz@fb.com>
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diff
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|
1051 for r in self: |
fa1ac5faa7c4
revset: added __nonzero__ method to spanset class
Lucas Moscovicz <lmoscovicz@fb.com>
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diff
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|
1052 return True |
fa1ac5faa7c4
revset: added __nonzero__ method to spanset class
Lucas Moscovicz <lmoscovicz@fb.com>
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diff
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|
1053 return False |
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Lucas Moscovicz <lmoscovicz@fb.com>
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diff
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|
1054 |
31476
413b44003462
py3: add __bool__ to every class defining __nonzero__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
31446
diff
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|
1055 __bool__ = __nonzero__ |
413b44003462
py3: add __bool__ to every class defining __nonzero__
Gregory Szorc <gregory.szorc@gmail.com>
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31446
diff
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|
1056 |
20484
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revset: added operations to spanset to duck type baseset
Lucas Moscovicz <lmoscovicz@fb.com>
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20483
diff
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|
1057 def __len__(self): |
20521
1850a7f5fb66
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Lucas Moscovicz <lmoscovicz@fb.com>
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|
1058 if not self._hiddenrevs: |
1850a7f5fb66
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|
1059 return abs(self._end - self._start) |
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|
1060 else: |
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diff
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|
1061 count = 0 |
21205
e2031c8ca4f8
revset: also inline spanset._contained in __len__
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|
1062 start = self._start |
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|
1063 end = self._end |
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Lucas Moscovicz <lmoscovicz@fb.com>
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|
1064 for rev in self._hiddenrevs: |
21284
3e53a64345c1
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diff
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|
1065 if (end < rev <= start) or (start <= rev < end): |
20521
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|
1066 count += 1 |
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|
1067 return abs(self._end - self._start) - count |
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|
1068 |
20725
cf628b50afbb
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|
1069 def isascending(self): |
23826
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|
1070 return self._ascending |
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|
1071 |
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|
1072 def isdescending(self): |
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|
1073 return not self._ascending |
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|
1074 |
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1075 def first(self): |
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1076 if self._ascending: |
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1077 it = self.fastasc |
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1078 else: |
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1079 it = self.fastdesc |
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1080 for x in it(): |
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1081 return x |
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1082 return None |
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1083 |
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1084 def last(self): |
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1085 if self._ascending: |
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1086 it = self.fastdesc |
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1087 else: |
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1088 it = self.fastasc |
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|
1089 for x in it(): |
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|
1090 return x |
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1091 return None |
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1092 |
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|
1093 def _slice(self, start, stop): |
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|
1094 if self._hiddenrevs: |
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|
1095 # unoptimized since all hidden revisions in range has to be scanned |
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|
1096 return super(_spanset, self)._slice(start, stop) |
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|
1097 if self._ascending: |
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|
1098 x = min(self._start + start, self._end) |
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|
1099 y = min(self._start + stop, self._end) |
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1100 else: |
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1101 x = max(self._end - stop, self._start) |
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1102 y = max(self._end - start, self._start) |
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|
1103 return _spanset(x, y, self._ascending, self._hiddenrevs) |
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1104 |
35901
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|
1105 @encoding.strmethod |
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|
1106 def __repr__(self): |
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|
1107 d = {False: b'-', True: b'+'}[self._ascending] |
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|
1108 return b'<%s%s %d:%d>' % (_typename(self), d, self._start, self._end) |
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1109 |
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1110 |
32818
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|
1111 class fullreposet(_spanset): |
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|
1112 """a set containing all revisions in the repo |
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1113 |
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|
1114 This class exists to host special optimization and magic to handle virtual |
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|
1115 revisions such as "null". |
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|
1116 """ |
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1117 |
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|
1118 def __init__(self, repo): |
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1119 super(fullreposet, self).__init__( |
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|
1120 0, len(repo), True, repo.changelog.filteredrevs |
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1121 ) |
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1122 |
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|
1123 def __and__(self, other): |
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23127
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|
1124 """As self contains the whole repo, all of the other set should also be |
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|
1125 in self. Therefore `self & other = other`. |
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1126 |
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|
1127 This boldly assumes the other contains valid revs only. |
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|
1128 """ |
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|
1129 # other not a smartset, make is so |
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|
1130 if not util.safehasattr(other, 'isascending'): |
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|
1131 # filter out hidden revision |
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|
1132 # (this boldly assumes all smartset are pure) |
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1133 # |
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1134 # `other` was used with "&", let's assume this is a set like |
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1135 # object. |
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|
1136 other = baseset(other - self._hiddenrevs) |
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1137 |
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|
1138 other.sort(reverse=self.isdescending()) |
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1139 return other |