comparison mercurial/match.py @ 38577:76838305b9dd

match: add basic wrapper for boolean function

This serves as a generic wrapper for fileset predicates. In future patches,
a fileset expression will be mapped to a tree of matchers for a better support
of match attributes such as visitdir(). For example,

  $ hg debugwalk -v 'set:contrib/** and binary()'
  * matcher:
  <intersectionmatcher
    m1=<patternmatcher patterns='(?:contrib/.*$)'>,
    m2=<predicatematcher pred=binary>>
  ...

38576:a3130208db1c

    def visitdir(self, dir):
        return False

    def __repr__(self):
        return r'<nevermatcher>'

class patternmatcher(basematcher):

    def __init__(self, root, cwd, kindpats, ctx=None, listsubrepos=False,
                 badfn=None):

38577:76838305b9dd

    def visitdir(self, dir):
        return False

    def __repr__(self):
        return r'<nevermatcher>'

class predicatematcher(basematcher):
    """A matcher adapter for a simple boolean function"""

    def __init__(self, root, cwd, predfn, predrepr=None, badfn=None):
        super(predicatematcher, self).__init__(root, cwd, badfn)
        self.matchfn = predfn
        self._predrepr = predrepr

    @encoding.strmethod
    def __repr__(self):
        s = (stringutil.buildrepr(self._predrepr)
             or pycompat.byterepr(self.matchfn))
        return '<predicatenmatcher pred=%s>' % s

class patternmatcher(basematcher):

    def __init__(self, root, cwd, kindpats, ctx=None, listsubrepos=False,
                 badfn=None):