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97 lines
2.7 KiB
Python
97 lines
2.7 KiB
Python
#! /usr/bin/env python
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# Thomas Nagy, 2011 (ita)
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"""
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Create _moc.cpp files
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The builds are 30-40% faster when .moc files are included,
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you should NOT use this tool. If you really
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really want it:
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def configure(conf):
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conf.load('compiler_cxx qt4')
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conf.load('slow_qt4')
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See playground/slow_qt/wscript for a complete example.
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"""
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from waflib.TaskGen import extension
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from waflib import Task
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import waflib.Tools.qt4
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import waflib.Tools.cxx
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@extension(*waflib.Tools.qt4.EXT_QT4)
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def cxx_hook(self, node):
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self.create_compiled_task('cxx_qt', node)
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class cxx_qt(Task.classes['cxx']):
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def runnable_status(self):
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ret = Task.classes['cxx'].runnable_status(self)
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if ret != Task.ASK_LATER and not getattr(self, 'moc_done', None):
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try:
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cache = self.generator.moc_cache
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except AttributeError:
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cache = self.generator.moc_cache = {}
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deps = self.generator.bld.node_deps[self.uid()]
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for x in [self.inputs[0]] + deps:
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if x.read().find('Q_OBJECT') > 0:
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# process "foo.h -> foo.moc" only if "foo.cpp" is in the sources for the current task generator
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# this code will work because it is in the main thread (runnable_status)
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if x.name.rfind('.') > -1: # a .h file...
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name = x.name[:x.name.rfind('.')]
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for tsk in self.generator.compiled_tasks:
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if tsk.inputs and tsk.inputs[0].name.startswith(name):
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break
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else:
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# no corresponding file, continue
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continue
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# the file foo.cpp could be compiled for a static and a shared library - hence the %number in the name
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cxx_node = x.parent.get_bld().make_node(x.name.replace('.', '_') + '_%d_moc.cpp' % self.generator.idx)
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if cxx_node in cache:
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continue
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cache[cxx_node] = self
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tsk = Task.classes['moc'](env=self.env, generator=self.generator)
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tsk.set_inputs(x)
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tsk.set_outputs(cxx_node)
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if x.name.endswith('.cpp'):
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# moc is trying to be too smart but it is too dumb:
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# why forcing the #include when Q_OBJECT is in the cpp file?
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gen = self.generator.bld.producer
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gen.outstanding.insert(0, tsk)
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gen.total += 1
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self.set_run_after(tsk)
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else:
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cxxtsk = Task.classes['cxx'](env=self.env, generator=self.generator)
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cxxtsk.set_inputs(tsk.outputs)
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cxxtsk.set_outputs(cxx_node.change_ext('.o'))
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cxxtsk.set_run_after(tsk)
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try:
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self.more_tasks.extend([tsk, cxxtsk])
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except AttributeError:
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self.more_tasks = [tsk, cxxtsk]
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try:
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link = self.generator.link_task
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except AttributeError:
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pass
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else:
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link.set_run_after(cxxtsk)
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link.inputs.extend(cxxtsk.outputs)
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link.inputs.sort(key=lambda x: x.abspath())
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self.moc_done = True
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for t in self.run_after:
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if not t.hasrun:
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return Task.ASK_LATER
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return ret
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