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
|
"""
Copyright 2008 Free Software Foundation, Inc.
This file is part of GNU Radio
GNU Radio Companion is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
GNU Radio Companion is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
"""
from .. base.Block import Block as _Block
from utils import extract_docs
class Block(_Block):
##for make source to keep track of indexes
_source_count = 0
##for make sink to keep track of indexes
_sink_count = 0
def __init__(self, flow_graph, n):
"""
Make a new block from nested data.
@param flow graph the parent element
@param n the nested odict
@return block a new block
"""
#grab the data
doc = n.find('doc') or ''
imports = map(lambda i: i.strip(), n.findall('import'))
make = n.find('make')
checks = n.findall('check')
callbacks = n.findall('callback')
#build the block
_Block.__init__(
self,
flow_graph=flow_graph,
n=n,
)
self._doc = doc
self._imports = imports
self._make = make
self._callbacks = callbacks
self._checks = checks
def validate(self):
"""
Validate this block.
Call the base class validate.
Evaluate the checks: each check must evaluate to True.
Adjust the nports.
"""
_Block.validate(self)
#evaluate the checks
for check in self._checks:
check_res = self.resolve_dependencies(check)
try:
check_eval = self.get_parent().evaluate(check_res)
try: assert check_eval
except AssertionError: self._add_error_message('Check "%s" failed.'%check)
except: self._add_error_message('Check "%s" did not evaluate.'%check)
#adjust nports
for ports, Port in (
(self._sources, self.get_parent().get_parent().Source),
(self._sinks, self.get_parent().get_parent().Sink),
):
#how many ports?
num_ports = len(ports)
#do nothing for 0 ports
if not num_ports: continue
#get the nports setting
port0 = ports[str(0)]
nports = port0.get_nports()
#do nothing for no nports
if not nports: continue
#do nothing if nports is already num ports
if nports == num_ports: continue
#remove excess ports and connections
if nports < num_ports:
#remove the connections
for key in map(str, range(nports, num_ports)):
port = ports[key]
for connection in port.get_connections():
self.get_parent().remove_element(connection)
#remove the ports
for key in map(str, range(nports, num_ports)): ports.pop(key)
continue
#add more ports
if nports > num_ports:
for key in map(str, range(num_ports, nports)):
n = port0._n
n['key'] = key
port = Port(self, n)
ports[key] = port
continue
def port_controller_modify(self, direction):
"""
Change the port controller.
@param direction +1 or -1
@return true for change
"""
changed = False
for ports in (self.get_sinks(), self.get_sources()):
if ports and ports[0].get_nports():
#find the param that controls port0
for param in self.get_params():
if not param.is_enum() and param.get_key() in ports[0]._nports:
#try to increment the port controller by direction
try:
value = param.evaluate()
value = value + direction
assert 0 < value
param.set_value(value)
changed = True
except: pass
return changed
def get_doc(self):
doc = self._doc.strip('\n').replace('\\\n', '')
#merge custom doc with doxygen docs
return '\n'.join([doc, extract_docs.extract(self.get_key())]).strip('\n')
def get_imports(self):
"""
Resolve all import statements.
Split each import statement at newlines.
Combine all import statments into a list.
Filter empty imports.
@return a list of import statements
"""
return filter(lambda i: i, sum(map(lambda i: self.resolve_dependencies(i).split('\n'), self._imports), []))
def get_make(self): return self.resolve_dependencies(self._make)
def get_callbacks(self):
"""
Get a list of function callbacks for this block.
@return a list of strings
"""
return map(lambda c: self.get_id() + '.' + self.resolve_dependencies(c), self._callbacks)
|
