Mercurial > hg
annotate mercurial/smartset.py @ 35282:46d7f0713a87
filemerge: raise InMemoryMergeConflictsError if we hit merge conflicts in IMM
Merge conflicts might be supported in the future, but for now are kept out of
scope.
Any places where we used to call `flushall()` should be replaced with some kind
of exception. At this point, IMM M1 is no longer supported.
Differential Revision: https://phab.mercurial-scm.org/D1212
author | Phil Cohen <phillco@fb.com> |
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date | Fri, 01 Dec 2017 00:07:23 -0800 |
parents | 01c9700fbf9f |
children | 12a46ad67a3c |
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1 # smartset.py - data structure for revision set |
11275 | 2 # |
3 # Copyright 2010 Matt Mackall <mpm@selenic.com> | |
4 # | |
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 from __future__ import absolute_import |
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9 |
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10 from . import ( |
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11 error, |
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12 util, |
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13 ) |
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15 def _formatsetrepr(r): |
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16 """Format an optional printable representation of a set |
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17 |
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18 ======== ================================= |
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19 type(r) example |
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20 ======== ================================= |
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21 tuple ('<not %r>', other) |
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22 str '<branch closed>' |
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23 callable lambda: '<branch %r>' % sorted(b) |
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24 object other |
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25 ======== ================================= |
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26 """ |
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27 if r is None: |
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28 return '' |
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29 elif isinstance(r, tuple): |
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30 return r[0] % r[1:] |
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31 elif isinstance(r, str): |
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32 return r |
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33 elif callable(r): |
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34 return r() |
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35 else: |
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36 return repr(r) |
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37 |
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38 class abstractsmartset(object): |
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39 |
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40 def __nonzero__(self): |
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41 """True if the smartset is not empty""" |
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42 raise NotImplementedError() |
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43 |
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44 __bool__ = __nonzero__ |
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45 |
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46 def __contains__(self, rev): |
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47 """provide fast membership testing""" |
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48 raise NotImplementedError() |
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49 |
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50 def __iter__(self): |
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51 """iterate the set in the order it is supposed to be iterated""" |
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52 raise NotImplementedError() |
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53 |
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54 # Attributes containing a function to perform a fast iteration in a given |
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55 # direction. A smartset can have none, one, or both defined. |
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56 # |
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57 # Default value is None instead of a function returning None to avoid |
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58 # initializing an iterator just for testing if a fast method exists. |
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59 fastasc = None |
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60 fastdesc = None |
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61 |
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62 def isascending(self): |
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63 """True if the set will iterate in ascending order""" |
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64 raise NotImplementedError() |
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65 |
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66 def isdescending(self): |
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67 """True if the set will iterate in descending order""" |
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68 raise NotImplementedError() |
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69 |
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70 def istopo(self): |
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71 """True if the set will iterate in topographical order""" |
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72 raise NotImplementedError() |
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73 |
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74 def min(self): |
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75 """return the minimum element in the set""" |
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76 if self.fastasc is None: |
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77 v = min(self) |
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78 else: |
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79 for v in self.fastasc(): |
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80 break |
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81 else: |
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82 raise ValueError('arg is an empty sequence') |
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83 self.min = lambda: v |
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84 return v |
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85 |
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86 def max(self): |
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87 """return the maximum element in the set""" |
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88 if self.fastdesc is None: |
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89 return max(self) |
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90 else: |
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91 for v in self.fastdesc(): |
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92 break |
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93 else: |
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94 raise ValueError('arg is an empty sequence') |
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95 self.max = lambda: v |
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96 return v |
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97 |
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98 def first(self): |
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99 """return the first element in the set (user iteration perspective) |
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100 |
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101 Return None if the set is empty""" |
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102 raise NotImplementedError() |
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103 |
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104 def last(self): |
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105 """return the last element in the set (user iteration perspective) |
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106 |
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107 Return None if the set is empty""" |
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108 raise NotImplementedError() |
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109 |
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110 def __len__(self): |
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111 """return the length of the smartsets |
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112 |
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113 This can be expensive on smartset that could be lazy otherwise.""" |
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114 raise NotImplementedError() |
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115 |
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116 def reverse(self): |
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117 """reverse the expected iteration order""" |
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118 raise NotImplementedError() |
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119 |
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120 def sort(self, reverse=False): |
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121 """get the set to iterate in an ascending or descending order""" |
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122 raise NotImplementedError() |
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123 |
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124 def __and__(self, other): |
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125 """Returns a new object with the intersection of the two collections. |
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126 |
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127 This is part of the mandatory API for smartset.""" |
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128 if isinstance(other, fullreposet): |
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129 return self |
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130 return self.filter(other.__contains__, condrepr=other, cache=False) |
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131 |
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132 def __add__(self, other): |
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133 """Returns a new object with the union of the two collections. |
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134 |
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135 This is part of the mandatory API for smartset.""" |
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136 return addset(self, other) |
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137 |
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138 def __sub__(self, other): |
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139 """Returns a new object with the substraction of the two collections. |
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140 |
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141 This is part of the mandatory API for smartset.""" |
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142 c = other.__contains__ |
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143 return self.filter(lambda r: not c(r), condrepr=('<not %r>', other), |
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144 cache=False) |
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145 |
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146 def filter(self, condition, condrepr=None, cache=True): |
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147 """Returns this smartset filtered by condition as a new smartset. |
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148 |
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149 `condition` is a callable which takes a revision number and returns a |
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150 boolean. Optional `condrepr` provides a printable representation of |
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151 the given `condition`. |
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152 |
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153 This is part of the mandatory API for smartset.""" |
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154 # builtin cannot be cached. but do not needs to |
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155 if cache and util.safehasattr(condition, 'func_code'): |
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156 condition = util.cachefunc(condition) |
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157 return filteredset(self, condition, condrepr) |
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158 |
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159 def slice(self, start, stop): |
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160 """Return new smartset that contains selected elements from this set""" |
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161 if start < 0 or stop < 0: |
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162 raise error.ProgrammingError('negative index not allowed') |
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163 return self._slice(start, stop) |
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164 |
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165 def _slice(self, start, stop): |
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166 # sub classes may override this. start and stop must not be negative, |
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167 # but start > stop is allowed, which should be an empty set. |
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168 ys = [] |
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169 it = iter(self) |
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170 for x in xrange(start): |
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171 y = next(it, None) |
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172 if y is None: |
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173 break |
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174 for x in xrange(stop - start): |
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175 y = next(it, None) |
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176 if y is None: |
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177 break |
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178 ys.append(y) |
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179 return baseset(ys, datarepr=('slice=%d:%d %r', start, stop, self)) |
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180 |
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181 class baseset(abstractsmartset): |
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182 """Basic data structure that represents a revset and contains the basic |
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183 operation that it should be able to perform. |
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184 |
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185 Every method in this class should be implemented by any smartset class. |
31019 | 186 |
187 This class could be constructed by an (unordered) set, or an (ordered) | |
188 list-like object. If a set is provided, it'll be sorted lazily. | |
189 | |
190 >>> x = [4, 0, 7, 6] | |
191 >>> y = [5, 6, 7, 3] | |
192 | |
193 Construct by a set: | |
194 >>> xs = baseset(set(x)) | |
195 >>> ys = baseset(set(y)) | |
196 >>> [list(i) for i in [xs + ys, xs & ys, xs - ys]] | |
197 [[0, 4, 6, 7, 3, 5], [6, 7], [0, 4]] | |
198 >>> [type(i).__name__ for i in [xs + ys, xs & ys, xs - ys]] | |
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199 ['addset', 'baseset', 'baseset'] |
31019 | 200 |
201 Construct by a list-like: | |
202 >>> xs = baseset(x) | |
203 >>> ys = baseset(i for i in y) | |
204 >>> [list(i) for i in [xs + ys, xs & ys, xs - ys]] | |
205 [[4, 0, 7, 6, 5, 3], [7, 6], [4, 0]] | |
206 >>> [type(i).__name__ for i in [xs + ys, xs & ys, xs - ys]] | |
207 ['addset', 'filteredset', 'filteredset'] | |
208 | |
209 Populate "_set" fields in the lists so set optimization may be used: | |
210 >>> [1 in xs, 3 in ys] | |
211 [False, True] | |
212 | |
213 Without sort(), results won't be changed: | |
214 >>> [list(i) for i in [xs + ys, xs & ys, xs - ys]] | |
215 [[4, 0, 7, 6, 5, 3], [7, 6], [4, 0]] | |
216 >>> [type(i).__name__ for i in [xs + ys, xs & ys, xs - ys]] | |
217 ['addset', 'filteredset', 'filteredset'] | |
218 | |
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219 With sort(), set optimization could be used: |
31019 | 220 >>> xs.sort(reverse=True) |
221 >>> [list(i) for i in [xs + ys, xs & ys, xs - ys]] | |
222 [[7, 6, 4, 0, 5, 3], [7, 6], [4, 0]] | |
223 >>> [type(i).__name__ for i in [xs + ys, xs & ys, xs - ys]] | |
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224 ['addset', 'baseset', 'baseset'] |
31019 | 225 |
226 >>> ys.sort() | |
227 >>> [list(i) for i in [xs + ys, xs & ys, xs - ys]] | |
228 [[7, 6, 4, 0, 3, 5], [7, 6], [4, 0]] | |
229 >>> [type(i).__name__ for i in [xs + ys, xs & ys, xs - ys]] | |
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230 ['addset', 'baseset', 'baseset'] |
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231 |
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232 istopo is preserved across set operations |
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233 >>> xs = baseset(set(x), istopo=True) |
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234 >>> rs = xs & ys |
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235 >>> type(rs).__name__ |
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236 'baseset' |
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237 >>> rs._istopo |
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238 True |
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239 """ |
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240 def __init__(self, data=(), datarepr=None, istopo=False): |
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241 """ |
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242 datarepr: a tuple of (format, obj, ...), a function or an object that |
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243 provides a printable representation of the given data. |
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244 """ |
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245 self._ascending = None |
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246 self._istopo = istopo |
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247 if isinstance(data, set): |
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248 # converting set to list has a cost, do it lazily |
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249 self._set = data |
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250 # set has no order we pick one for stability purpose |
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251 self._ascending = True |
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252 else: |
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253 if not isinstance(data, list): |
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254 data = list(data) |
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255 self._list = data |
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256 self._datarepr = datarepr |
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257 |
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258 @util.propertycache |
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259 def _set(self): |
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260 return set(self._list) |
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261 |
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262 @util.propertycache |
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263 def _asclist(self): |
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264 asclist = self._list[:] |
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265 asclist.sort() |
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266 return asclist |
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267 |
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268 @util.propertycache |
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269 def _list(self): |
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270 # _list is only lazily constructed if we have _set |
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271 assert r'_set' in self.__dict__ |
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272 return list(self._set) |
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273 |
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274 def __iter__(self): |
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275 if self._ascending is None: |
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276 return iter(self._list) |
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277 elif self._ascending: |
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278 return iter(self._asclist) |
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279 else: |
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280 return reversed(self._asclist) |
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281 |
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282 def fastasc(self): |
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283 return iter(self._asclist) |
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284 |
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285 def fastdesc(self): |
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286 return reversed(self._asclist) |
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287 |
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288 @util.propertycache |
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289 def __contains__(self): |
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290 return self._set.__contains__ |
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291 |
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292 def __nonzero__(self): |
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293 return bool(len(self)) |
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294 |
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295 __bool__ = __nonzero__ |
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296 |
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297 def sort(self, reverse=False): |
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298 self._ascending = not bool(reverse) |
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299 self._istopo = False |
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300 |
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301 def reverse(self): |
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302 if self._ascending is None: |
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303 self._list.reverse() |
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304 else: |
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305 self._ascending = not self._ascending |
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306 self._istopo = False |
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307 |
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308 def __len__(self): |
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309 if '_list' in self.__dict__: |
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310 return len(self._list) |
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311 else: |
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312 return len(self._set) |
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313 |
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314 def isascending(self): |
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315 """Returns True if the collection is ascending order, False if not. |
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316 |
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317 This is part of the mandatory API for smartset.""" |
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318 if len(self) <= 1: |
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319 return True |
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320 return self._ascending is not None and self._ascending |
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321 |
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322 def isdescending(self): |
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323 """Returns True if the collection is descending order, False if not. |
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324 |
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325 This is part of the mandatory API for smartset.""" |
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326 if len(self) <= 1: |
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327 return True |
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328 return self._ascending is not None and not self._ascending |
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329 |
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330 def istopo(self): |
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331 """Is the collection is in topographical order or not. |
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332 |
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333 This is part of the mandatory API for smartset.""" |
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334 if len(self) <= 1: |
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335 return True |
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336 return self._istopo |
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337 |
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338 def first(self): |
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339 if self: |
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340 if self._ascending is None: |
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341 return self._list[0] |
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342 elif self._ascending: |
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343 return self._asclist[0] |
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344 else: |
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345 return self._asclist[-1] |
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346 return None |
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347 |
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348 def last(self): |
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349 if self: |
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350 if self._ascending is None: |
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351 return self._list[-1] |
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352 elif self._ascending: |
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353 return self._asclist[-1] |
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354 else: |
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355 return self._asclist[0] |
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356 return None |
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357 |
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358 def _fastsetop(self, other, op): |
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359 # try to use native set operations as fast paths |
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360 if (type(other) is baseset and r'_set' in other.__dict__ and r'_set' in |
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361 self.__dict__ and self._ascending is not None): |
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362 s = baseset(data=getattr(self._set, op)(other._set), |
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363 istopo=self._istopo) |
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364 s._ascending = self._ascending |
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365 else: |
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366 s = getattr(super(baseset, self), op)(other) |
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367 return s |
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368 |
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369 def __and__(self, other): |
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370 return self._fastsetop(other, '__and__') |
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371 |
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372 def __sub__(self, other): |
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373 return self._fastsetop(other, '__sub__') |
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374 |
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375 def _slice(self, start, stop): |
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376 # creating new list should be generally cheaper than iterating items |
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377 if self._ascending is None: |
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378 return baseset(self._list[start:stop], istopo=self._istopo) |
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379 |
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380 data = self._asclist |
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381 if not self._ascending: |
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382 start, stop = max(len(data) - stop, 0), max(len(data) - start, 0) |
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383 s = baseset(data[start:stop], istopo=self._istopo) |
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384 s._ascending = self._ascending |
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385 return s |
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386 |
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387 def __repr__(self): |
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388 d = {None: '', False: '-', True: '+'}[self._ascending] |
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389 s = _formatsetrepr(self._datarepr) |
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390 if not s: |
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391 l = self._list |
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392 # if _list has been built from a set, it might have a different |
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393 # order from one python implementation to another. |
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394 # We fallback to the sorted version for a stable output. |
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395 if self._ascending is not None: |
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396 l = self._asclist |
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397 s = repr(l) |
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398 return '<%s%s %s>' % (type(self).__name__, d, s) |
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399 |
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400 class filteredset(abstractsmartset): |
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401 """Duck type for baseset class which iterates lazily over the revisions in |
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402 the subset and contains a function which tests for membership in the |
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403 revset |
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404 """ |
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405 def __init__(self, subset, condition=lambda x: True, condrepr=None): |
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406 """ |
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407 condition: a function that decide whether a revision in the subset |
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408 belongs to the revset or not. |
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409 condrepr: a tuple of (format, obj, ...), a function or an object that |
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410 provides a printable representation of the given condition. |
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411 """ |
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412 self._subset = subset |
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413 self._condition = condition |
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414 self._condrepr = condrepr |
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415 |
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416 def __contains__(self, x): |
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417 return x in self._subset and self._condition(x) |
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418 |
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419 def __iter__(self): |
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420 return self._iterfilter(self._subset) |
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421 |
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422 def _iterfilter(self, it): |
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423 cond = self._condition |
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424 for x in it: |
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425 if cond(x): |
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426 yield x |
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427 |
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428 @property |
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429 def fastasc(self): |
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430 it = self._subset.fastasc |
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431 if it is None: |
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432 return None |
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433 return lambda: self._iterfilter(it()) |
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434 |
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435 @property |
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436 def fastdesc(self): |
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437 it = self._subset.fastdesc |
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438 if it is None: |
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439 return None |
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440 return lambda: self._iterfilter(it()) |
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441 |
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442 def __nonzero__(self): |
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443 fast = None |
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444 candidates = [self.fastasc if self.isascending() else None, |
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445 self.fastdesc if self.isdescending() else None, |
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446 self.fastasc, |
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447 self.fastdesc] |
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448 for candidate in candidates: |
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449 if candidate is not None: |
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450 fast = candidate |
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451 break |
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452 |
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453 if fast is not None: |
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454 it = fast() |
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455 else: |
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456 it = self |
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457 |
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458 for r in it: |
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459 return True |
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460 return False |
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461 |
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462 __bool__ = __nonzero__ |
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463 |
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464 def __len__(self): |
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465 # Basic implementation to be changed in future patches. |
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466 # until this gets improved, we use generator expression |
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467 # here, since list comprehensions are free to call __len__ again |
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468 # causing infinite recursion |
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469 l = baseset(r for r in self) |
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470 return len(l) |
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471 |
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472 def sort(self, reverse=False): |
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473 self._subset.sort(reverse=reverse) |
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474 |
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475 def reverse(self): |
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476 self._subset.reverse() |
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477 |
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478 def isascending(self): |
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479 return self._subset.isascending() |
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480 |
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481 def isdescending(self): |
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482 return self._subset.isdescending() |
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483 |
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484 def istopo(self): |
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485 return self._subset.istopo() |
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486 |
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487 def first(self): |
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|
488 for x in self: |
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489 return x |
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490 return None |
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|
491 |
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492 def last(self): |
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493 it = None |
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494 if self.isascending(): |
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|
495 it = self.fastdesc |
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496 elif self.isdescending(): |
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497 it = self.fastasc |
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498 if it is not None: |
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499 for x in it(): |
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500 return x |
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501 return None #empty case |
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502 else: |
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503 x = None |
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504 for x in self: |
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505 pass |
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506 return x |
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507 |
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508 def __repr__(self): |
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509 xs = [repr(self._subset)] |
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510 s = _formatsetrepr(self._condrepr) |
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511 if s: |
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512 xs.append(s) |
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513 return '<%s %s>' % (type(self).__name__, ', '.join(xs)) |
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514 |
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515 def _iterordered(ascending, iter1, iter2): |
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516 """produce an ordered iteration from two iterators with the same order |
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517 |
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518 The ascending is used to indicated the iteration direction. |
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519 """ |
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520 choice = max |
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521 if ascending: |
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522 choice = min |
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523 |
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524 val1 = None |
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525 val2 = None |
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526 try: |
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527 # Consume both iterators in an ordered way until one is empty |
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528 while True: |
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529 if val1 is None: |
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530 val1 = next(iter1) |
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531 if val2 is None: |
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532 val2 = next(iter2) |
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533 n = choice(val1, val2) |
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534 yield n |
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535 if val1 == n: |
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536 val1 = None |
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537 if val2 == n: |
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538 val2 = None |
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539 except StopIteration: |
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540 # Flush any remaining values and consume the other one |
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541 it = iter2 |
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542 if val1 is not None: |
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543 yield val1 |
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544 it = iter1 |
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545 elif val2 is not None: |
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546 # might have been equality and both are empty |
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547 yield val2 |
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548 for val in it: |
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549 yield val |
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|
550 |
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Pierre-Yves David <pierre-yves.david@fb.com>
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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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parents:
20693
diff
changeset
|
555 performance on the __contains__ method |
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Lucas Moscovicz <lmoscovicz@fb.com>
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20707
diff
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|
556 |
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c152e538b85b
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Lucas Moscovicz <lmoscovicz@fb.com>
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|
557 If the ascending attribute is set, that means the two structures are |
c152e538b85b
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diff
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|
558 ordered in either an ascending or descending way. Therefore, we can add |
21024
7731a2281cf0
spelling: fixes from spell checker
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) |
263bbed1833c
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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) |
263bbed1833c
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diff
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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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diff
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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
c5f212c8ad78
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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 |
25024
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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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diff
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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]) |
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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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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:
25105
diff
changeset
|
595 ([0, 2, 3, 4, 5], [0, 2, 3, 4, 5]) |
25024
263bbed1833c
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diff
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|
596 >>> assert rs._asclist |
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|
597 |
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diff
changeset
|
598 iterate descending: |
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parents:
25023
diff
changeset
|
599 >>> rs = addset(xs, ys, ascending=False) |
28717
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Maciej Fijalkowski <fijall@gmail.com>
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28708
diff
changeset
|
600 >>> # (use generator because pypy could call len()) |
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Maciej Fijalkowski <fijall@gmail.com>
parents:
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diff
changeset
|
601 >>> list(x for x in rs), list(x for x in rs.fastdesc()) # without _asclist |
25024
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parents:
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diff
changeset
|
602 ([5, 4, 3, 2, 0], [5, 4, 3, 2, 0]) |
263bbed1833c
revset: test current behavior of addset class
Yuya Nishihara <yuya@tcha.org>
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diff
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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 def __init__(self, revs1, revs2, ascending=None): |
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623 self._r1 = revs1 |
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624 self._r2 = revs2 |
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625 self._iter = None |
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626 self._ascending = ascending |
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627 self._genlist = None |
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628 self._asclist = None |
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629 |
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630 def __len__(self): |
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631 return len(self._list) |
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632 |
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633 def __nonzero__(self): |
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634 return bool(self._r1) or bool(self._r2) |
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635 |
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636 __bool__ = __nonzero__ |
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637 |
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638 @util.propertycache |
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639 def _list(self): |
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640 if not self._genlist: |
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641 self._genlist = baseset(iter(self)) |
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642 return self._genlist |
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643 |
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644 def __iter__(self): |
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645 """Iterate over both collections without repeating elements |
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646 |
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647 If the ascending attribute is not set, iterate over the first one and |
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648 then over the second one checking for membership on the first one so we |
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649 dont yield any duplicates. |
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650 |
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651 If the ascending attribute is set, iterate over both collections at the |
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652 same time, yielding only one value at a time in the given order. |
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653 """ |
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654 if self._ascending is None: |
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655 if self._genlist: |
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656 return iter(self._genlist) |
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657 def arbitraryordergen(): |
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658 for r in self._r1: |
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659 yield r |
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660 inr1 = self._r1.__contains__ |
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661 for r in self._r2: |
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662 if not inr1(r): |
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663 yield r |
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664 return arbitraryordergen() |
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665 # try to use our own fast iterator if it exists |
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666 self._trysetasclist() |
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667 if self._ascending: |
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668 attr = 'fastasc' |
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669 else: |
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670 attr = 'fastdesc' |
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671 it = getattr(self, attr) |
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672 if it is not None: |
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673 return it() |
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674 # maybe half of the component supports fast |
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675 # get iterator for _r1 |
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676 iter1 = getattr(self._r1, attr) |
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677 if iter1 is None: |
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678 # let's avoid side effect (not sure it matters) |
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679 iter1 = iter(sorted(self._r1, reverse=not self._ascending)) |
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680 else: |
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681 iter1 = iter1() |
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682 # get iterator for _r2 |
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683 iter2 = getattr(self._r2, attr) |
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684 if iter2 is None: |
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685 # let's avoid side effect (not sure it matters) |
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686 iter2 = iter(sorted(self._r2, reverse=not self._ascending)) |
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687 else: |
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688 iter2 = iter2() |
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689 return _iterordered(self._ascending, iter1, iter2) |
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690 |
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691 def _trysetasclist(self): |
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692 """populate the _asclist attribute if possible and necessary""" |
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693 if self._genlist is not None and self._asclist is None: |
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694 self._asclist = sorted(self._genlist) |
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695 |
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696 @property |
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697 def fastasc(self): |
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698 self._trysetasclist() |
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699 if self._asclist is not None: |
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700 return self._asclist.__iter__ |
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701 iter1 = self._r1.fastasc |
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702 iter2 = self._r2.fastasc |
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703 if None in (iter1, iter2): |
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704 return None |
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705 return lambda: _iterordered(True, iter1(), iter2()) |
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706 |
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707 @property |
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708 def fastdesc(self): |
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709 self._trysetasclist() |
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710 if self._asclist is not None: |
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711 return self._asclist.__reversed__ |
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diff
changeset
|
712 iter1 = self._r1.fastdesc |
6bbc26adcc6a
addset: offer a fastasc and fastdesc methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22741
diff
changeset
|
713 iter2 = self._r2.fastdesc |
6bbc26adcc6a
addset: offer a fastasc and fastdesc methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22741
diff
changeset
|
714 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
|
715 return None |
25131
adfe4d9680bf
revset: extract addset._iterordered to free function
Yuya Nishihara <yuya@tcha.org>
parents:
25130
diff
changeset
|
716 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
|
717 |
20694
621c94378d0d
revset: added addset class with its basic methods
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20693
diff
changeset
|
718 def __contains__(self, x): |
621c94378d0d
revset: added addset class with its basic methods
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20693
diff
changeset
|
719 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
|
720 |
20724
e9a64b3f2925
revset: added sort method in addset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20723
diff
changeset
|
721 def sort(self, reverse=False): |
e9a64b3f2925
revset: added sort method in addset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20723
diff
changeset
|
722 """Sort the added set |
e9a64b3f2925
revset: added sort method in addset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20723
diff
changeset
|
723 |
e9a64b3f2925
revset: added sort method in addset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20723
diff
changeset
|
724 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
|
725 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
|
726 """ |
22859
513c0ba61db8
addset: do lazy sorting
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22857
diff
changeset
|
727 self._ascending = not reverse |
20724
e9a64b3f2925
revset: added sort method in addset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20723
diff
changeset
|
728 |
20733
adf4ec7e6f60
revset: added isascending and isdescending methods to _addset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20732
diff
changeset
|
729 def isascending(self): |
adf4ec7e6f60
revset: added isascending and isdescending methods to _addset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20732
diff
changeset
|
730 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
|
731 |
adf4ec7e6f60
revset: added isascending and isdescending methods to _addset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20732
diff
changeset
|
732 def isdescending(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 not self._ascending |
adf4ec7e6f60
revset: added isascending and isdescending methods to _addset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20732
diff
changeset
|
734 |
29346
38e0c83c7ee4
revset: record if a set is in topographical order
Martijn Pieters <mjpieters@fb.com>
parents:
29304
diff
changeset
|
735 def istopo(self): |
38e0c83c7ee4
revset: record if a set is in topographical order
Martijn Pieters <mjpieters@fb.com>
parents:
29304
diff
changeset
|
736 # 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
|
737 # 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
|
738 # again instead. |
38e0c83c7ee4
revset: record if a set is in topographical order
Martijn Pieters <mjpieters@fb.com>
parents:
29304
diff
changeset
|
739 return False |
38e0c83c7ee4
revset: record if a set is in topographical order
Martijn Pieters <mjpieters@fb.com>
parents:
29304
diff
changeset
|
740 |
20723
fb9852c46a42
revset: added reverse method to addset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20722
diff
changeset
|
741 def reverse(self): |
22859
513c0ba61db8
addset: do lazy sorting
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22857
diff
changeset
|
742 if self._ascending is None: |
513c0ba61db8
addset: do lazy sorting
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22857
diff
changeset
|
743 self._list.reverse() |
513c0ba61db8
addset: do lazy sorting
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22857
diff
changeset
|
744 else: |
20723
fb9852c46a42
revset: added reverse method to addset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20722
diff
changeset
|
745 self._ascending = not self._ascending |
fb9852c46a42
revset: added reverse method to addset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20722
diff
changeset
|
746 |
22810
7f97cb12782f
addset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22809
diff
changeset
|
747 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
|
748 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
|
749 return x |
22810
7f97cb12782f
addset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22809
diff
changeset
|
750 return None |
7f97cb12782f
addset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22809
diff
changeset
|
751 |
7f97cb12782f
addset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22809
diff
changeset
|
752 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
|
753 self.reverse() |
7361d8244efb
addset: fix `first` and `last` on sorted addset (issue4426)
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
23115
diff
changeset
|
754 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
|
755 self.reverse() |
7361d8244efb
addset: fix `first` and `last` on sorted addset (issue4426)
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
23115
diff
changeset
|
756 return val |
22810
7f97cb12782f
addset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22809
diff
changeset
|
757 |
24457
c5022f3579b9
revset: add __repr__ to all smartset classes
Yuya Nishihara <yuya@tcha.org>
parents:
24446
diff
changeset
|
758 def __repr__(self): |
c5022f3579b9
revset: add __repr__ to all smartset classes
Yuya Nishihara <yuya@tcha.org>
parents:
24446
diff
changeset
|
759 d = {None: '', False: '-', True: '+'}[self._ascending] |
c5022f3579b9
revset: add __repr__ to all smartset classes
Yuya Nishihara <yuya@tcha.org>
parents:
24446
diff
changeset
|
760 return '<%s%s %r, %r>' % (type(self).__name__, d, self._r1, self._r2) |
c5022f3579b9
revset: add __repr__ to all smartset classes
Yuya Nishihara <yuya@tcha.org>
parents:
24446
diff
changeset
|
761 |
22795
c21342159fad
generatorset: drop the leading underscore in the class name
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22794
diff
changeset
|
762 class generatorset(abstractsmartset): |
20705
9cc2249a9461
revset: made generatorset a private class
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20703
diff
changeset
|
763 """Wrap a generator for lazy iteration |
9cc2249a9461
revset: made generatorset a private class
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20703
diff
changeset
|
764 |
9cc2249a9461
revset: made generatorset a private class
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20703
diff
changeset
|
765 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
|
766 be iterated more than once. |
fa16c710a3d8
revset: added cached generated list on generatorset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20538
diff
changeset
|
767 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
|
768 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
|
769 |
247bae545061
smartset: fix generatorset.last() to not return the first element (issue5609)
Yuya Nishihara <yuya@tcha.org>
parents:
33072
diff
changeset
|
770 >>> 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
|
771 >>> 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
|
772 >>> xs.last() # cached |
247bae545061
smartset: fix generatorset.last() to not return the first element (issue5609)
Yuya Nishihara <yuya@tcha.org>
parents:
33072
diff
changeset
|
773 4 |
20540
fa16c710a3d8
revset: added cached generated list on generatorset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20538
diff
changeset
|
774 """ |
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
|
775 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
|
776 """ |
1b4f2399f3c4
revset: add documentation and comment for _generatorset
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
20738
diff
changeset
|
777 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
|
778 """ |
20536
532b114a6e02
revset: added generatorset class with cached __contains__ method
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20534
diff
changeset
|
779 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
|
780 self._asclist = None |
20536
532b114a6e02
revset: added generatorset class with cached __contains__ method
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20534
diff
changeset
|
781 self._cache = {} |
22796
43f664bf2e1e
generatorset: stop using a base as the _genlist
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22795
diff
changeset
|
782 self._genlist = [] |
20703
e07b1fd30805
revset: added sort methods to generatorsets
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20695
diff
changeset
|
783 self._finished = False |
22800
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
784 self._ascending = True |
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
|
785 if iterasc is not None: |
f9a825b593be
generatorset: make it possible to use gen as fastasc or fastdesc
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22754
diff
changeset
|
786 if iterasc: |
22797
61ecabeeadb3
generatorset: move iteration code into _iterator
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22796
diff
changeset
|
787 self.fastasc = self._iterator |
22757
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
788 self.__contains__ = self._asccontains |
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
|
789 else: |
22797
61ecabeeadb3
generatorset: move iteration code into _iterator
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22796
diff
changeset
|
790 self.fastdesc = self._iterator |
22757
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
791 self.__contains__ = self._desccontains |
20540
fa16c710a3d8
revset: added cached generated list on generatorset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20538
diff
changeset
|
792 |
22739
4ed47a1b2d24
generatorset: implement __nonzero__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22738
diff
changeset
|
793 def __nonzero__(self): |
24936
2aa94b6fe51c
revset: make generatorset.__nonzero__ lazy
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24932
diff
changeset
|
794 # 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
|
795 # 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
|
796 # iterator. |
2aa94b6fe51c
revset: make generatorset.__nonzero__ lazy
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24932
diff
changeset
|
797 if self._genlist: |
2aa94b6fe51c
revset: make generatorset.__nonzero__ lazy
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24932
diff
changeset
|
798 return True |
2aa94b6fe51c
revset: make generatorset.__nonzero__ lazy
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
24932
diff
changeset
|
799 for r in self._consumegen(): |
22739
4ed47a1b2d24
generatorset: implement __nonzero__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22738
diff
changeset
|
800 return True |
4ed47a1b2d24
generatorset: implement __nonzero__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22738
diff
changeset
|
801 return False |
4ed47a1b2d24
generatorset: implement __nonzero__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22738
diff
changeset
|
802 |
31476
413b44003462
py3: add __bool__ to every class defining __nonzero__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
31446
diff
changeset
|
803 __bool__ = __nonzero__ |
413b44003462
py3: add __bool__ to every class defining __nonzero__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
31446
diff
changeset
|
804 |
20536
532b114a6e02
revset: added generatorset class with cached __contains__ method
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20534
diff
changeset
|
805 def __contains__(self, x): |
532b114a6e02
revset: added generatorset class with cached __contains__ method
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20534
diff
changeset
|
806 if x in self._cache: |
532b114a6e02
revset: added generatorset class with cached __contains__ method
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20534
diff
changeset
|
807 return self._cache[x] |
532b114a6e02
revset: added generatorset class with cached __contains__ method
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20534
diff
changeset
|
808 |
20828
3210b7930899
revset: improve performance of _generatorset.__contains__ (issue 4201)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
20780
diff
changeset
|
809 # 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
|
810 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
|
811 if l == x: |
f2bb7ba59456
revset: changed generatorset code to remove unnecesary function call
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20613
diff
changeset
|
812 return True |
20536
532b114a6e02
revset: added generatorset class with cached __contains__ method
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20534
diff
changeset
|
813 |
532b114a6e02
revset: added generatorset class with cached __contains__ method
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20534
diff
changeset
|
814 self._cache[x] = False |
532b114a6e02
revset: added generatorset class with cached __contains__ method
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20534
diff
changeset
|
815 return False |
532b114a6e02
revset: added generatorset class with cached __contains__ method
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20534
diff
changeset
|
816 |
22757
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
817 def _asccontains(self, x): |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
818 """version of contains optimised for ascending generator""" |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
819 if x in self._cache: |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
820 return self._cache[x] |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
821 |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
822 # Use new values only, as existing values would be cached. |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
823 for l in self._consumegen(): |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
824 if l == x: |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
825 return True |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
826 if l > x: |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
827 break |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
828 |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
829 self._cache[x] = False |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
830 return False |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
831 |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
832 def _desccontains(self, x): |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
833 """version of contains optimised for descending generator""" |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
834 if x in self._cache: |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
835 return self._cache[x] |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
836 |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
837 # Use new values only, as existing values would be cached. |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
838 for l in self._consumegen(): |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
839 if l == x: |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
840 return True |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
841 if l < x: |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
842 break |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
843 |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
844 self._cache[x] = False |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
845 return False |
d34969a4b1a8
generatorset: move membership testing on ordered gen to the main class
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22756
diff
changeset
|
846 |
20536
532b114a6e02
revset: added generatorset class with cached __contains__ method
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20534
diff
changeset
|
847 def __iter__(self): |
22800
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
848 if self._ascending: |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
849 it = self.fastasc |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
850 else: |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
851 it = self.fastdesc |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
852 if it is not None: |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
853 return it() |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
854 # we need to consume the iterator |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
855 for x in self._consumegen(): |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
856 pass |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
857 # recall the same code |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
858 return iter(self) |
22797
61ecabeeadb3
generatorset: move iteration code into _iterator
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22796
diff
changeset
|
859 |
61ecabeeadb3
generatorset: move iteration code into _iterator
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22796
diff
changeset
|
860 def _iterator(self): |
20833
47d43e2323c5
revset: fix generatorset race condition
Durham Goode <durham@fb.com>
parents:
20829
diff
changeset
|
861 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
|
862 return iter(self._genlist) |
20833
47d43e2323c5
revset: fix generatorset race condition
Durham Goode <durham@fb.com>
parents:
20829
diff
changeset
|
863 |
22494
14f6cebfcb8a
revset: document the choice made in __generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22487
diff
changeset
|
864 # 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
|
865 # 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
|
866 # 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
|
867 # |
14f6cebfcb8a
revset: document the choice made in __generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22487
diff
changeset
|
868 # 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
|
869 # iteration. |
20833
47d43e2323c5
revset: fix generatorset race condition
Durham Goode <durham@fb.com>
parents:
20829
diff
changeset
|
870 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
|
871 nextgen = self._consumegen() |
9a94239e4f12
py3: use next() to obtain next item from inner generator of generatorset
Yuya Nishihara <yuya@tcha.org>
parents:
31127
diff
changeset
|
872 _len, _next = len, next # cache global lookup |
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
|
873 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
|
874 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
|
875 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
|
876 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
|
877 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
|
878 else: |
32977
27ba0d8dc26c
py3: catch StopIteration from next() in generatorset
Martin von Zweigbergk <martinvonz@google.com>
parents:
32821
diff
changeset
|
879 try: |
27ba0d8dc26c
py3: catch StopIteration from next() in generatorset
Martin von Zweigbergk <martinvonz@google.com>
parents:
32821
diff
changeset
|
880 yield _next(nextgen) |
27ba0d8dc26c
py3: catch StopIteration from next() in generatorset
Martin von Zweigbergk <martinvonz@google.com>
parents:
32821
diff
changeset
|
881 except StopIteration: |
27ba0d8dc26c
py3: catch StopIteration from next() in generatorset
Martin von Zweigbergk <martinvonz@google.com>
parents:
32821
diff
changeset
|
882 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
|
883 i += 1 |
44dce874de97
revset: rely on built in iterator when possible in _generatorset.__iter__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22669
diff
changeset
|
884 return gen() |
20828
3210b7930899
revset: improve performance of _generatorset.__contains__ (issue 4201)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
20780
diff
changeset
|
885 |
3210b7930899
revset: improve performance of _generatorset.__contains__ (issue 4201)
Gregory Szorc <gregory.szorc@gmail.com>
parents:
20780
diff
changeset
|
886 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
|
887 cache = self._cache |
b6dc3b79bb25
revset: avoid in loop lookup in _generatorset._consumegen
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22527
diff
changeset
|
888 genlist = self._genlist.append |
20634
f2bb7ba59456
revset: changed generatorset code to remove unnecesary function call
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20613
diff
changeset
|
889 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
|
890 cache[item] = True |
b6dc3b79bb25
revset: avoid in loop lookup in _generatorset._consumegen
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22527
diff
changeset
|
891 genlist(item) |
20634
f2bb7ba59456
revset: changed generatorset code to remove unnecesary function call
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20613
diff
changeset
|
892 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
|
893 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
|
894 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
|
895 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
|
896 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
|
897 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
|
898 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
|
899 self.fastdesc = asc.__reversed__ |
20703
e07b1fd30805
revset: added sort methods to generatorsets
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20695
diff
changeset
|
900 |
22996
a43d929d1fa1
generatorset: implement __len__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22995
diff
changeset
|
901 def __len__(self): |
a43d929d1fa1
generatorset: implement __len__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22995
diff
changeset
|
902 for x in self._consumegen(): |
a43d929d1fa1
generatorset: implement __len__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22995
diff
changeset
|
903 pass |
a43d929d1fa1
generatorset: implement __len__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22995
diff
changeset
|
904 return len(self._genlist) |
a43d929d1fa1
generatorset: implement __len__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22995
diff
changeset
|
905 |
20703
e07b1fd30805
revset: added sort methods to generatorsets
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20695
diff
changeset
|
906 def sort(self, reverse=False): |
22800
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
907 self._ascending = not reverse |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
908 |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
909 def reverse(self): |
29a8c20e14a8
generatorset: explicitly track iteration order
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22799
diff
changeset
|
910 self._ascending = not self._ascending |
20703
e07b1fd30805
revset: added sort methods to generatorsets
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20695
diff
changeset
|
911 |
22801
6af9e9b6af39
generatorset: implement isascending and isdescending
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22800
diff
changeset
|
912 def isascending(self): |
6af9e9b6af39
generatorset: implement isascending and isdescending
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22800
diff
changeset
|
913 return self._ascending |
6af9e9b6af39
generatorset: implement isascending and isdescending
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22800
diff
changeset
|
914 |
6af9e9b6af39
generatorset: implement isascending and isdescending
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22800
diff
changeset
|
915 def isdescending(self): |
6af9e9b6af39
generatorset: implement isascending and isdescending
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22800
diff
changeset
|
916 return not self._ascending |
6af9e9b6af39
generatorset: implement isascending and isdescending
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22800
diff
changeset
|
917 |
29346
38e0c83c7ee4
revset: record if a set is in topographical order
Martijn Pieters <mjpieters@fb.com>
parents:
29304
diff
changeset
|
918 def istopo(self): |
38e0c83c7ee4
revset: record if a set is in topographical order
Martijn Pieters <mjpieters@fb.com>
parents:
29304
diff
changeset
|
919 # 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
|
920 # 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
|
921 # again instead. |
38e0c83c7ee4
revset: record if a set is in topographical order
Martijn Pieters <mjpieters@fb.com>
parents:
29304
diff
changeset
|
922 return False |
38e0c83c7ee4
revset: record if a set is in topographical order
Martijn Pieters <mjpieters@fb.com>
parents:
29304
diff
changeset
|
923 |
22811
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
924 def first(self): |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
925 if self._ascending: |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
926 it = self.fastasc |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
927 else: |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
928 it = self.fastdesc |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
929 if it is None: |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
930 # 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
|
931 for x in self._consumegen(): |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
932 pass |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
933 return self.first() |
25146
f542a2c89b60
generatorset: use 'next()' to simplify the code
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25145
diff
changeset
|
934 return next(it(), None) |
22811
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
935 |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
936 def last(self): |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
937 if self._ascending: |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
938 it = self.fastdesc |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
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diff
changeset
|
939 else: |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
940 it = self.fastasc |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
941 if it is None: |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
942 # 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
|
943 for x in self._consumegen(): |
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
944 pass |
33109
247bae545061
smartset: fix generatorset.last() to not return the first element (issue5609)
Yuya Nishihara <yuya@tcha.org>
parents:
33072
diff
changeset
|
945 return self.last() |
25146
f542a2c89b60
generatorset: use 'next()' to simplify the code
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
25145
diff
changeset
|
946 return next(it(), None) |
22811
c1fd827e1ae0
generatorset: implement first and last methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22810
diff
changeset
|
947 |
24457
c5022f3579b9
revset: add __repr__ to all smartset classes
Yuya Nishihara <yuya@tcha.org>
parents:
24446
diff
changeset
|
948 def __repr__(self): |
c5022f3579b9
revset: add __repr__ to all smartset classes
Yuya Nishihara <yuya@tcha.org>
parents:
24446
diff
changeset
|
949 d = {False: '-', True: '+'}[self._ascending] |
c5022f3579b9
revset: add __repr__ to all smartset classes
Yuya Nishihara <yuya@tcha.org>
parents:
24446
diff
changeset
|
950 return '<%s%s>' % (type(self).__name__, d) |
c5022f3579b9
revset: add __repr__ to all smartset classes
Yuya Nishihara <yuya@tcha.org>
parents:
24446
diff
changeset
|
951 |
32818
9ddb18ae342e
smartset: extract spanset factory to make it constructed without a repo
Yuya Nishihara <yuya@tcha.org>
parents:
32817
diff
changeset
|
952 def spanset(repo, start=0, end=None): |
9ddb18ae342e
smartset: extract spanset factory to make it constructed without a repo
Yuya Nishihara <yuya@tcha.org>
parents:
32817
diff
changeset
|
953 """Create a spanset that represents a range of repository revisions |
9ddb18ae342e
smartset: extract spanset factory to make it constructed without a repo
Yuya Nishihara <yuya@tcha.org>
parents:
32817
diff
changeset
|
954 |
9ddb18ae342e
smartset: extract spanset factory to make it constructed without a repo
Yuya Nishihara <yuya@tcha.org>
parents:
32817
diff
changeset
|
955 start: first revision included the set (default to 0) |
9ddb18ae342e
smartset: extract spanset factory to make it constructed without a repo
Yuya Nishihara <yuya@tcha.org>
parents:
32817
diff
changeset
|
956 end: first revision excluded (last+1) (default to len(repo)) |
9ddb18ae342e
smartset: extract spanset factory to make it constructed without a repo
Yuya Nishihara <yuya@tcha.org>
parents:
32817
diff
changeset
|
957 |
9ddb18ae342e
smartset: extract spanset factory to make it constructed without a repo
Yuya Nishihara <yuya@tcha.org>
parents:
32817
diff
changeset
|
958 Spanset will be descending if `end` < `start`. |
9ddb18ae342e
smartset: extract spanset factory to make it constructed without a repo
Yuya Nishihara <yuya@tcha.org>
parents:
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diff
changeset
|
959 """ |
9ddb18ae342e
smartset: extract spanset factory to make it constructed without a repo
Yuya Nishihara <yuya@tcha.org>
parents:
32817
diff
changeset
|
960 if end is None: |
9ddb18ae342e
smartset: extract spanset factory to make it constructed without a repo
Yuya Nishihara <yuya@tcha.org>
parents:
32817
diff
changeset
|
961 end = len(repo) |
9ddb18ae342e
smartset: extract spanset factory to make it constructed without a repo
Yuya Nishihara <yuya@tcha.org>
parents:
32817
diff
changeset
|
962 ascending = start <= end |
9ddb18ae342e
smartset: extract spanset factory to make it constructed without a repo
Yuya Nishihara <yuya@tcha.org>
parents:
32817
diff
changeset
|
963 if not ascending: |
9ddb18ae342e
smartset: extract spanset factory to make it constructed without a repo
Yuya Nishihara <yuya@tcha.org>
parents:
32817
diff
changeset
|
964 start, end = end + 1, start + 1 |
9ddb18ae342e
smartset: extract spanset factory to make it constructed without a repo
Yuya Nishihara <yuya@tcha.org>
parents:
32817
diff
changeset
|
965 return _spanset(start, end, ascending, repo.changelog.filteredrevs) |
9ddb18ae342e
smartset: extract spanset factory to make it constructed without a repo
Yuya Nishihara <yuya@tcha.org>
parents:
32817
diff
changeset
|
966 |
9ddb18ae342e
smartset: extract spanset factory to make it constructed without a repo
Yuya Nishihara <yuya@tcha.org>
parents:
32817
diff
changeset
|
967 class _spanset(abstractsmartset): |
20482
a979078bd788
revset: added spanset class to represent revision ranges
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20481
diff
changeset
|
968 """Duck type for baseset class which represents a range of revisions and |
a979078bd788
revset: added spanset class to represent revision ranges
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20481
diff
changeset
|
969 can work lazily and without having all the range in memory |
20737
b141080e70c5
revset: added documentation and comment for spanset class
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20734
diff
changeset
|
970 |
b141080e70c5
revset: added documentation and comment for spanset class
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20734
diff
changeset
|
971 Note that spanset(x, y) behave almost like xrange(x, y) except for two |
b141080e70c5
revset: added documentation and comment for spanset class
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20734
diff
changeset
|
972 notable points: |
b141080e70c5
revset: added documentation and comment for spanset class
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20734
diff
changeset
|
973 - when x < y it will be automatically descending, |
b141080e70c5
revset: added documentation and comment for spanset class
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20734
diff
changeset
|
974 - revision filtered with this repoview will be skipped. |
b141080e70c5
revset: added documentation and comment for spanset class
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20734
diff
changeset
|
975 |
20482
a979078bd788
revset: added spanset class to represent revision ranges
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20481
diff
changeset
|
976 """ |
32818
9ddb18ae342e
smartset: extract spanset factory to make it constructed without a repo
Yuya Nishihara <yuya@tcha.org>
parents:
32817
diff
changeset
|
977 def __init__(self, start, end, ascending, hiddenrevs): |
20482
a979078bd788
revset: added spanset class to represent revision ranges
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20481
diff
changeset
|
978 self._start = start |
22717
b89f7e3a414d
spanset: enforce the order lazily to gain `fastasc` and `fastdesc` methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22716
diff
changeset
|
979 self._end = end |
32818
9ddb18ae342e
smartset: extract spanset factory to make it constructed without a repo
Yuya Nishihara <yuya@tcha.org>
parents:
32817
diff
changeset
|
980 self._ascending = ascending |
9ddb18ae342e
smartset: extract spanset factory to make it constructed without a repo
Yuya Nishihara <yuya@tcha.org>
parents:
32817
diff
changeset
|
981 self._hiddenrevs = hiddenrevs |
20521
1850a7f5fb66
revset: changed spanset implementation to take hidden revisions into account
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20512
diff
changeset
|
982 |
22717
b89f7e3a414d
spanset: enforce the order lazily to gain `fastasc` and `fastdesc` methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22716
diff
changeset
|
983 def sort(self, reverse=False): |
b89f7e3a414d
spanset: enforce the order lazily to gain `fastasc` and `fastdesc` methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22716
diff
changeset
|
984 self._ascending = not reverse |
b89f7e3a414d
spanset: enforce the order lazily to gain `fastasc` and `fastdesc` methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22716
diff
changeset
|
985 |
b89f7e3a414d
spanset: enforce the order lazily to gain `fastasc` and `fastdesc` methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22716
diff
changeset
|
986 def reverse(self): |
b89f7e3a414d
spanset: enforce the order lazily to gain `fastasc` and `fastdesc` methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22716
diff
changeset
|
987 self._ascending = not self._ascending |
b89f7e3a414d
spanset: enforce the order lazily to gain `fastasc` and `fastdesc` methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22716
diff
changeset
|
988 |
29346
38e0c83c7ee4
revset: record if a set is in topographical order
Martijn Pieters <mjpieters@fb.com>
parents:
29304
diff
changeset
|
989 def istopo(self): |
38e0c83c7ee4
revset: record if a set is in topographical order
Martijn Pieters <mjpieters@fb.com>
parents:
29304
diff
changeset
|
990 # 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
|
991 # 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
|
992 # again instead. |
38e0c83c7ee4
revset: record if a set is in topographical order
Martijn Pieters <mjpieters@fb.com>
parents:
29304
diff
changeset
|
993 return False |
38e0c83c7ee4
revset: record if a set is in topographical order
Martijn Pieters <mjpieters@fb.com>
parents:
29304
diff
changeset
|
994 |
22717
b89f7e3a414d
spanset: enforce the order lazily to gain `fastasc` and `fastdesc` methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22716
diff
changeset
|
995 def _iterfilter(self, iterrange): |
b89f7e3a414d
spanset: enforce the order lazily to gain `fastasc` and `fastdesc` methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22716
diff
changeset
|
996 s = self._hiddenrevs |
b89f7e3a414d
spanset: enforce the order lazily to gain `fastasc` and `fastdesc` methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22716
diff
changeset
|
997 for r in iterrange: |
b89f7e3a414d
spanset: enforce the order lazily to gain `fastasc` and `fastdesc` methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22716
diff
changeset
|
998 if r not in s: |
b89f7e3a414d
spanset: enforce the order lazily to gain `fastasc` and `fastdesc` methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22716
diff
changeset
|
999 yield r |
b89f7e3a414d
spanset: enforce the order lazily to gain `fastasc` and `fastdesc` methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22716
diff
changeset
|
1000 |
20482
a979078bd788
revset: added spanset class to represent revision ranges
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20481
diff
changeset
|
1001 def __iter__(self): |
22717
b89f7e3a414d
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22716
diff
changeset
|
1002 if self._ascending: |
b89f7e3a414d
spanset: enforce the order lazily to gain `fastasc` and `fastdesc` methods
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22716
diff
changeset
|
1003 return self.fastasc() |
20482
a979078bd788
revset: added spanset class to represent revision ranges
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20481
diff
changeset
|
1004 else: |
22717
b89f7e3a414d
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22716
diff
changeset
|
1005 return self.fastdesc() |
b89f7e3a414d
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Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22716
diff
changeset
|
1006 |
b89f7e3a414d
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Pierre-Yves David <pierre-yves.david@fb.com>
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22716
diff
changeset
|
1007 def fastasc(self): |
b89f7e3a414d
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Pierre-Yves David <pierre-yves.david@fb.com>
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changeset
|
1008 iterrange = xrange(self._start, self._end) |
20521
1850a7f5fb66
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Lucas Moscovicz <lmoscovicz@fb.com>
parents:
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diff
changeset
|
1009 if self._hiddenrevs: |
22717
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changeset
|
1010 return self._iterfilter(iterrange) |
b89f7e3a414d
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changeset
|
1011 return iter(iterrange) |
b89f7e3a414d
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diff
changeset
|
1012 |
b89f7e3a414d
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Pierre-Yves David <pierre-yves.david@fb.com>
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22716
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changeset
|
1013 def fastdesc(self): |
b89f7e3a414d
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parents:
22716
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changeset
|
1014 iterrange = xrange(self._end - 1, self._start - 1, -1) |
b89f7e3a414d
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changeset
|
1015 if self._hiddenrevs: |
b89f7e3a414d
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22716
diff
changeset
|
1016 return self._iterfilter(iterrange) |
b89f7e3a414d
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parents:
22716
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changeset
|
1017 return iter(iterrange) |
20482
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Lucas Moscovicz <lmoscovicz@fb.com>
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20481
diff
changeset
|
1018 |
21201
c8b9c6147108
revset: fix revision filtering in spanset.contains (regression)
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21199
diff
changeset
|
1019 def __contains__(self, rev): |
22526
1e6d2b6b37ea
revset: do less lookup during spanset.__contains__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22510
diff
changeset
|
1020 hidden = self._hiddenrevs |
22718
7b123e5639f4
spanset: do a single range check in __contains__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22717
diff
changeset
|
1021 return ((self._start <= rev < self._end) |
22526
1e6d2b6b37ea
revset: do less lookup during spanset.__contains__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
22510
diff
changeset
|
1022 and not (hidden and rev in hidden)) |
20482
a979078bd788
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Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20481
diff
changeset
|
1023 |
20716
fa1ac5faa7c4
revset: added __nonzero__ method to spanset class
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20714
diff
changeset
|
1024 def __nonzero__(self): |
fa1ac5faa7c4
revset: added __nonzero__ method to spanset class
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20714
diff
changeset
|
1025 for r in self: |
fa1ac5faa7c4
revset: added __nonzero__ method to spanset class
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20714
diff
changeset
|
1026 return True |
fa1ac5faa7c4
revset: added __nonzero__ method to spanset class
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20714
diff
changeset
|
1027 return False |
fa1ac5faa7c4
revset: added __nonzero__ method to spanset class
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20714
diff
changeset
|
1028 |
31476
413b44003462
py3: add __bool__ to every class defining __nonzero__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
31446
diff
changeset
|
1029 __bool__ = __nonzero__ |
413b44003462
py3: add __bool__ to every class defining __nonzero__
Gregory Szorc <gregory.szorc@gmail.com>
parents:
31446
diff
changeset
|
1030 |
20484
0f1ef9e9e904
revset: added operations to spanset to duck type baseset
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20483
diff
changeset
|
1031 def __len__(self): |
20521
1850a7f5fb66
revset: changed spanset implementation to take hidden revisions into account
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20512
diff
changeset
|
1032 if not self._hiddenrevs: |
1850a7f5fb66
revset: changed spanset implementation to take hidden revisions into account
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20512
diff
changeset
|
1033 return abs(self._end - self._start) |
1850a7f5fb66
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Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20512
diff
changeset
|
1034 else: |
1850a7f5fb66
revset: changed spanset implementation to take hidden revisions into account
Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20512
diff
changeset
|
1035 count = 0 |
21205
e2031c8ca4f8
revset: also inline spanset._contained in __len__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21204
diff
changeset
|
1036 start = self._start |
e2031c8ca4f8
revset: also inline spanset._contained in __len__
Pierre-Yves David <pierre-yves.david@fb.com>
parents:
21204
diff
changeset
|
1037 end = self._end |
20521
1850a7f5fb66
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Lucas Moscovicz <lmoscovicz@fb.com>
parents:
20512
diff
changeset
|
1038 for rev in self._hiddenrevs: |
21284
3e53a64345c1
revset: cosmetic changes in spanset range comparison
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|
1039 if (end < rev <= start) or (start <= rev < end): |
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1040 count += 1 |
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|
1041 return abs(self._end - self._start) - count |
20484
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|
1042 |
20725
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|
1043 def isascending(self): |
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1044 return self._ascending |
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1045 |
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|
1046 def isdescending(self): |
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|
1047 return not self._ascending |
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|
1048 |
22809
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|
1049 def first(self): |
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1050 if self._ascending: |
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1051 it = self.fastasc |
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1052 else: |
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1053 it = self.fastdesc |
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1054 for x in it(): |
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1055 return x |
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1056 return None |
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1057 |
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1058 def last(self): |
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1059 if self._ascending: |
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1060 it = self.fastdesc |
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1061 else: |
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1062 it = self.fastasc |
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1063 for x in it(): |
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1064 return x |
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1065 return None |
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1066 |
32821
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1067 def _slice(self, start, stop): |
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1068 if self._hiddenrevs: |
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1069 # unoptimized since all hidden revisions in range has to be scanned |
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1070 return super(_spanset, self)._slice(start, stop) |
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1071 if self._ascending: |
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1072 x = min(self._start + start, self._end) |
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1073 y = min(self._start + stop, self._end) |
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1074 else: |
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1075 x = max(self._end - stop, self._start) |
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1076 y = max(self._end - start, self._start) |
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1077 return _spanset(x, y, self._ascending, self._hiddenrevs) |
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1078 |
24457
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1079 def __repr__(self): |
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1080 d = {False: '-', True: '+'}[self._ascending] |
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1081 return '<%s%s %d:%d>' % (type(self).__name__.lstrip('_'), d, |
32817
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1082 self._start, self._end) |
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1083 |
32818
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|
1084 class fullreposet(_spanset): |
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1085 """a set containing all revisions in the repo |
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1086 |
24204
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|
1087 This class exists to host special optimization and magic to handle virtual |
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|
1088 revisions such as "null". |
22508
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1089 """ |
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1090 |
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|
1091 def __init__(self, repo): |
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1092 super(fullreposet, self).__init__(0, len(repo), True, |
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|
1093 repo.changelog.filteredrevs) |
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1094 |
22510
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|
1095 def __and__(self, other): |
23139
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|
1096 """As self contains the whole repo, all of the other set should also be |
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|
1097 in self. Therefore `self & other = other`. |
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1098 |
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1099 This boldly assumes the other contains valid revs only. |
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1100 """ |
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1101 # other not a smartset, make is so |
22883
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|
1102 if not util.safehasattr(other, 'isascending'): |
22510
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1103 # filter out hidden revision |
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1104 # (this boldly assumes all smartset are pure) |
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1105 # |
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1106 # `other` was used with "&", let's assume this is a set like |
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1107 # object. |
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1108 other = baseset(other - self._hiddenrevs) |
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1109 |
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|
1110 other.sort(reverse=self.isdescending()) |
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1111 return other |
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1112 |
30881
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|
1113 def prettyformat(revs): |
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1114 lines = [] |
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|
1115 rs = repr(revs) |
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1116 p = 0 |
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1117 while p < len(rs): |
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1118 q = rs.find('<', p + 1) |
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1119 if q < 0: |
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1120 q = len(rs) |
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1121 l = rs.count('<', 0, p) - rs.count('>', 0, p) |
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|
1122 assert l >= 0 |
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1123 lines.append((l, rs[p:q].rstrip())) |
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1124 p = q |
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1125 return '\n'.join(' ' * l + s for l, s in lines) |