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comparison mercurial/filesetlang.py @ 38826:6371ab78c3b3

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fileset: add phase to transform parsed tree This isn't strictly necessary, but I decided to just follow the strategy of the revset parsing.
author Yuya Nishihara <yuya@tcha.org>
date Sat, 21 Jul 2018 16:11:36 +0900
parents b9162ea1b815
children 48fc2a8af345
comparison
equal deleted inserted replaced
38825:8a9f6076e60c 38826:6371ab78c3b3
129 l = getlist(x) 129 l = getlist(x)
130 if len(l) < min or len(l) > max: 130 if len(l) < min or len(l) > max:
131 raise error.ParseError(err) 131 raise error.ParseError(err)
132 return l 132 return l
133 133
134 def _analyze(x):
135 if x is None:
136 return x
137
138 op = x[0]
139 if op in {'string', 'symbol'}:
140 return x
141 if op == 'kindpat':
142 getsymbol(x[1]) # kind must be a symbol
143 t = _analyze(x[2])
144 return (op, x[1], t)
145 if op in {'group', 'not', 'negate'}:
146 t = _analyze(x[1])
147 return (op, t)
148 if op in {'and', 'minus'}:
149 ta = _analyze(x[1])
150 tb = _analyze(x[2])
151 return (op, ta, tb)
152 if op in {'list', 'or'}:
153 ts = tuple(_analyze(y) for y in x[1:])
154 return (op,) + ts
155 if op == 'func':
156 getsymbol(x[1]) # function name must be a symbol
157 ta = _analyze(x[2])
158 return (op, x[1], ta)
159 raise error.ProgrammingError('invalid operator %r' % op)
160
161 def analyze(x):
162 """Transform raw parsed tree to evaluatable tree which can be fed to
163 getmatch()
164
165 All pseudo operations should be mapped to real operations or functions
166 defined in methods or symbols table respectively.
167 """
168 return _analyze(x)
169
134 def prettyformat(tree): 170 def prettyformat(tree):
135 return parser.prettyformat(tree, ('string', 'symbol')) 171 return parser.prettyformat(tree, ('string', 'symbol'))