10 # Permission is hereby granted, free of charge, to any person obtaining
11 # a copy of this software and associated documentation files (the
12 # "Software"), to deal in the Software without restriction, including
13 # without limitation the rights to use, copy, modify, merge, publish,
14 # distribute, sublicense, and/or sell copies of the Software, and to
15 # permit persons to whom the Software is furnished to do so, subject to
16 # the following conditions:
18 # The above copyright notice and this permission notice shall be included
19 # in all copies or substantial portions of the Software.
21 # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY
22 # KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
23 # WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
24 # NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
25 # LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
26 # OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
27 # WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
30 __revision__ = "__FILE__ __REVISION__ __DATE__ __DEVELOPER__"
34 class ValueNodeInfo(SCons.Node.NodeInfoBase):
37 class ValueBuildInfo(SCons.Node.BuildInfoBase):
40 class Value(SCons.Node.Node):
41 """A class for Python variables, typically passed on the command line
42 or generated by a script, but not from a file or some other source.
45 NodeInfo = ValueNodeInfo
46 BuildInfo = ValueBuildInfo
48 def __init__(self, value):
49 SCons.Node.Node.__init__(self)
53 return repr(self.value)
56 """A "builder" for Values."""
59 current = SCons.Node.Node.children_are_up_to_date
61 def is_under(self, dir):
62 # Make Value nodes get built regardless of
63 # what directory scons was run from. Value nodes
64 # are outside the filesystem:
67 def get_contents(self):
68 """The contents of a Value are the concatenation
69 of all the contents of its sources with the node's value itself."""
70 contents = str(self.value)
71 for kid in self.children(None):
72 contents = contents + kid.get_contents()
75 def get_csig(self, calc=None):
76 """Because we're a Python value node and don't have a real
77 timestamp, we get to ignore the calculator and just use the
81 except AttributeError:
82 binfo = self.binfo = self.new_binfo()
84 return binfo.ninfo.csig
85 except AttributeError:
86 binfo.ninfo.csig = self.get_contents()
87 self.store_info(binfo)
88 return binfo.ninfo.csig