1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
|
'''Classes for including functions in the generation process.'''
from . import cli
from . import shell
from . import preprocessor
from .str_utils import indent
# pylint: disable=too-few-public-methods
class FunctionBase:
'''Base class for functions.'''
def __init__(self, funcname, code):
self.funcname = funcname
self.code = code.strip()
def get_code(self):
'''Return the whole function.'''
raise NotImplementedError
class ShellFunction(FunctionBase):
'''Class for generating Bash and Zsh functions.'''
def get_code(self, funcname=None, defines=frozenset()):
if funcname is None:
funcname = self.funcname
code = self.code.replace('%FUNCNAME%', funcname)
code = preprocessor.preprocess(code, defines)
code = preprocessor.strip_double_empty_lines(code)
r = '%s() {\n' % funcname
r += '%s\n' % indent(code, 2).rstrip()
r += '}'
return r
class FishFunction(FunctionBase):
'''Class for generating Fish functions.'''
def get_code(self, funcname=None, defines=frozenset()):
if funcname is None:
funcname = self.funcname
code = self.code.replace('%FUNCNAME%', funcname)
code = preprocessor.preprocess(code, defines)
code = preprocessor.strip_double_empty_lines(code)
r = 'function %s\n' % funcname
r += '%s\n' % indent(code, 2).rstrip()
r += 'end'
return r
def make_completion_funcname_for_context(ctxt):
'''TODO.'''
commandlines = ctxt.commandline.get_parents(include_self=True)
del commandlines[0]
funcname = shell.make_identifier('_'.join(p.prog for p in commandlines))
if isinstance(ctxt.option, cli.Option):
return '%s_%s' % (funcname, ctxt.option.option_strings[0])
if isinstance(ctxt.option, cli.Positional):
return '%s_%s' % (funcname, shell.make_identifier(ctxt.option.metavar))
raise AssertionError('make_completion_funcname_for_context: Should not be reached')
class GeneralHelpers:
'''Class for including functions in the generation process.'''
def __init__(self, function_prefix, function_class):
self.function_prefix = function_prefix
self.function_class = function_class
# Dynamic functions
self.dynamic_functions_code_to_funcname = {}
# Builtin functins
self.functions = {}
self.used_functions = {} # funcname:set(defines)
self.global_defines = set()
# =========================================================================
# Dynamic functions
# =========================================================================
def add_dynamic_func(self, ctxt, code):
'''Add dynamically generated function.'''
try:
return self.dynamic_functions_code_to_funcname[code]
except KeyError:
funcname = self.get_dynamic_funcname(ctxt)
self.dynamic_functions_code_to_funcname[code] = funcname
return funcname
def get_dynamic_funcname(self, ctxt):
'''Return a unique function name for `ctxt`.'''
funcname = make_completion_funcname_for_context(ctxt)
funcname = '_%s__%s' % (self.function_prefix, funcname)
num = 0
funcname_plus_num = funcname
while funcname_plus_num in self.dynamic_functions_code_to_funcname.values():
funcname_plus_num = '%s%d' % (funcname, num)
num += 1
return funcname_plus_num
def get_all_dynamic_functions(self):
'''Return a list of code for all dynamically defined functions.'''
r = []
for code, funcname in self.dynamic_functions_code_to_funcname.items():
r.append(self.function_class(funcname, code).get_code())
return r
# =========================================================================
# Builtin functions
# =========================================================================
def add_function(self, function):
'''Add a function to the function repository.'''
assert isinstance(function, FunctionBase), \
"GeneralHelpers.add_function: function: expected FunctionBase, got %r" % function
self.functions[function.funcname] = function
def define(self, name):
'''Define a macro on global scope.'''
self.global_defines.add(name)
def use_function(self, function_name, *defines):
'''Use a function from the function repository.'''
if function_name not in self.functions:
raise KeyError('No such function: %r' % function_name)
if function_name not in self.used_functions:
self.used_functions[function_name] = set(defines)
else:
self.used_functions[function_name].update(defines)
return self.get_real_function_name(function_name)
def get_real_function_name(self, function_name):
'''Return the function name with its prefix.'''
return '_%s__%s' % (self.function_prefix, function_name)
def is_used(self, function_name):
'''Check if a function is used.'''
return function_name in self.used_functions
def get_used_functions_code(self):
'''Return a list of code for all used functions.'''
r = []
for funcname, defines in self.used_functions.items():
r.append(self.functions[funcname].get_code(
self.get_real_function_name(funcname), self.global_defines | defines))
r.extend(self.get_all_dynamic_functions())
return r
|
