+ return "".join([x.get_contents(target, source, env) for x in self.list])
+
+ def __call__(self, target, source, env, exitstatfunc=_null, presub=_null,
+ show=_null, execute=_null, chdir=_null, executor=None):
+ if executor:
+ target = executor.get_all_targets()
+ source = executor.get_all_sources()
+ for act in self.list:
+ stat = act(target, source, env, exitstatfunc, presub,
+ show, execute, chdir, executor)
+ if stat:
+ return stat
+ return 0
+
+ def get_implicit_deps(self, target, source, env):
+ result = []
+ for act in self.list:
+ result.extend(act.get_implicit_deps(target, source, env))
+ return result
+
+ def get_varlist(self, target, source, env, executor=None):
+ result = SCons.Util.OrderedDict()
+ for act in self.list:
+ for var in act.get_varlist(target, source, env, executor):
+ result[var] = True
+ return result.keys()
+
+class ActionCaller:
+ """A class for delaying calling an Action function with specific
+ (positional and keyword) arguments until the Action is actually
+ executed.
+
+ This class looks to the rest of the world like a normal Action object,
+ but what it's really doing is hanging on to the arguments until we
+ have a target, source and env to use for the expansion.
+ """
+ def __init__(self, parent, args, kw):
+ self.parent = parent
+ self.args = args
+ self.kw = kw
+
+ def get_contents(self, target, source, env):
+ actfunc = self.parent.actfunc
+ try:
+ # "self.actfunc" is a function.
+ contents = str(actfunc.func_code.co_code)
+ except AttributeError:
+ # "self.actfunc" is a callable object.
+ try:
+ contents = str(actfunc.__call__.im_func.func_code.co_code)
+ except AttributeError:
+ # No __call__() method, so it might be a builtin
+ # or something like that. Do the best we can.
+ contents = str(actfunc)
+ contents = remove_set_lineno_codes(contents)
+ return contents
+
+ def subst(self, s, target, source, env):
+ # If s is a list, recursively apply subst()
+ # to every element in the list
+ if is_List(s):
+ result = []
+ for elem in s:
+ result.append(self.subst(elem, target, source, env))
+ return self.parent.convert(result)
+
+ # Special-case hack: Let a custom function wrapped in an
+ # ActionCaller get at the environment through which the action
+ # was called by using this hard-coded value as a special return.
+ if s == '$__env__':
+ return env
+ elif is_String(s):
+ return env.subst(s, 1, target, source)
+ return self.parent.convert(s)
+
+ def subst_args(self, target, source, env):
+ return [self.subst(x, target, source, env) for x in self.args]
+
+ def subst_kw(self, target, source, env):
+ kw = {}
+ for key in self.kw.keys():
+ kw[key] = self.subst(self.kw[key], target, source, env)
+ return kw
+
+ def __call__(self, target, source, env, executor=None):
+ args = self.subst_args(target, source, env)
+ kw = self.subst_kw(target, source, env)
+ #TODO(1.5) return self.parent.actfunc(*args, **kw)
+ return self.parent.actfunc(*args, **kw)
+
+ def strfunction(self, target, source, env):
+ args = self.subst_args(target, source, env)
+ kw = self.subst_kw(target, source, env)
+ #TODO(1.5) return self.parent.strfunc(*args, **kw)
+ return self.parent.strfunc(*args, **kw)
+
+ def __str__(self):
+ #TODO(1.5) return self.parent.strfunc(*self.args, **self.kw)
+ return self.parent.strfunc(*self.args, **self.kw)
+
+class ActionFactory:
+ """A factory class that will wrap up an arbitrary function
+ as an SCons-executable Action object.
+
+ The real heavy lifting here is done by the ActionCaller class.
+ We just collect the (positional and keyword) arguments that we're
+ called with and give them to the ActionCaller object we create,
+ so it can hang onto them until it needs them.
+ """
+ def __init__(self, actfunc, strfunc, convert=lambda x: x):
+ self.actfunc = actfunc
+ self.strfunc = strfunc
+ self.convert = convert
+
+ def __call__(self, *args, **kw):
+ ac = ActionCaller(self, args, kw)
+ action = Action(ac, strfunction=ac.strfunction)
+ return action
+
+# Local Variables:
+# tab-width:4
+# indent-tabs-mode:nil
+# End:
+# vim: set expandtab tabstop=4 shiftwidth=4:
projects / scons.git / blobdiff