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
175
176
177
178
|
#! /usr/bin/env python
# encoding: UTF-8
# Petar Forai
# Thomas Nagy 2008-2010 (ita)
import re
from waflib import Task, Logs
from waflib.TaskGen import extension
from waflib.Configure import conf
from waflib.Tools import c_preproc
"""
tasks have to be added dynamically:
- swig interface files may be created at runtime
- the module name may be unknown in advance
"""
SWIG_EXTS = ['.swig', '.i']
re_module = re.compile('%module(?:\s*\(.*\))?\s+(.+)', re.M)
re_1 = re.compile(r'^%module.*?\s+([\w]+)\s*?$', re.M)
re_2 = re.compile('[#%]include [<"](.*)[">]', re.M)
class swig(Task.Task):
color = 'BLUE'
run_str = '${SWIG} ${SWIGFLAGS} ${SWIGPATH_ST:INCPATHS} ${SWIGDEF_ST:DEFINES} ${SRC}'
ext_out = ['.h'] # might produce .h files although it is not mandatory
vars = ['SWIG_VERSION', 'SWIGDEPS']
def runnable_status(self):
for t in self.run_after:
if not t.hasrun:
return Task.ASK_LATER
if not getattr(self, 'init_outputs', None):
self.init_outputs = True
if not getattr(self, 'module', None):
# search the module name
txt = self.inputs[0].read()
m = re_module.search(txt)
if not m:
raise ValueError("could not find the swig module name")
self.module = m.group(1)
swig_c(self)
# add the language-specific output files as nodes
# call funs in the dict swig_langs
for x in self.env['SWIGFLAGS']:
# obtain the language
x = x[1:]
try:
fun = swig_langs[x]
except KeyError:
pass
else:
fun(self)
return super(swig, self).runnable_status()
def scan(self):
"scan for swig dependencies, climb the .i files"
lst_src = []
seen = []
to_see = [self.inputs[0]]
while to_see:
node = to_see.pop(0)
if node in seen:
continue
seen.append(node)
lst_src.append(node)
# read the file
code = node.read()
code = c_preproc.re_nl.sub('', code)
code = c_preproc.re_cpp.sub(c_preproc.repl, code)
# find .i files and project headers
names = re_2.findall(code)
for n in names:
for d in self.generator.includes_nodes + [node.parent]:
u = d.find_resource(n)
if u:
to_see.append(u)
break
else:
Logs.warn('could not find %r' % n)
return (lst_src, [])
# provide additional language processing
swig_langs = {}
def swigf(fun):
swig_langs[fun.__name__.replace('swig_', '')] = fun
swig.swigf = swigf
def swig_c(self):
ext = '.swigwrap_%d.c' % self.generator.idx
flags = self.env['SWIGFLAGS']
if '-c++' in flags:
ext += 'xx'
out_node = self.inputs[0].parent.find_or_declare(self.module + ext)
if '-c++' in flags:
c_tsk = self.generator.cxx_hook(out_node)
else:
c_tsk = self.generator.c_hook(out_node)
c_tsk.set_run_after(self)
ge = self.generator.bld.producer
ge.outstanding.insert(0, c_tsk)
ge.total += 1
try:
ltask = self.generator.link_task
except AttributeError:
pass
else:
ltask.set_run_after(c_tsk)
ltask.inputs.append(c_tsk.outputs[0])
self.outputs.append(out_node)
if not '-o' in self.env['SWIGFLAGS']:
self.env.append_value('SWIGFLAGS', ['-o', self.outputs[0].abspath()])
@swigf
def swig_python(tsk):
node = tsk.inputs[0].parent
if tsk.outdir:
node = tsk.outdir
tsk.set_outputs(node.find_or_declare(tsk.module+'.py'))
@swigf
def swig_ocaml(tsk):
node = tsk.inputs[0].parent
if tsk.outdir:
node = tsk.outdir
tsk.set_outputs(node.find_or_declare(tsk.module+'.ml'))
tsk.set_outputs(node.find_or_declare(tsk.module+'.mli'))
@extension(*SWIG_EXTS)
def i_file(self, node):
# the task instance
tsk = self.create_task('swig')
tsk.set_inputs(node)
tsk.module = getattr(self, 'swig_module', None)
flags = self.to_list(getattr(self, 'swig_flags', []))
tsk.env.append_value('SWIGFLAGS', flags)
tsk.outdir = None
if '-outdir' in flags:
outdir = flags[flags.index('-outdir')+1]
outdir = tsk.generator.bld.bldnode.make_node(outdir)
outdir.mkdir()
tsk.outdir = outdir
@conf
def check_swig_version(self):
"""Returns a tuple representing the swig version, like (1,3,28)"""
reg_swig = re.compile(r'SWIG Version\s(.*)', re.M)
swig_out = self.cmd_and_log(self.env.SWIG + ['-version'])
swigver = tuple([int(s) for s in reg_swig.findall(swig_out)[0].split('.')])
self.env['SWIG_VERSION'] = swigver
msg = 'Checking for swig version'
self.msg(msg, '.'.join(map(str, swigver)))
return swigver
def configure(conf):
conf.find_program('swig', var='SWIG')
conf.env.SWIGPATH_ST = '-I%s'
conf.env.SWIGDEF_ST = '-D%s'
|
