def _make_layoutbuilder(self):
# make a TransformerLayoutBuilder and save it on the translator
# where it can be fished and reused by the FrameworkGCTransformer
from rpython.memory.gctransform import framework
translator = self.translator
self.layoutbuilder = framework.TransformerLayoutBuilder(translator)
self.layoutbuilder.delay_encoding()
if not hasattr(translator, '_jit2gc'):
translator._jit2gc = {}
translator._jit2gc['layoutbuilder'] = self.layoutbuilder
def ensure_layoutbuilder(cls, translator):
jit2gc = getattr(translator, '_jit2gc', None)
if jit2gc:
assert 'invoke_after_minor_collection' in jit2gc
return jit2gc['layoutbuilder']
marker = cls.marker
GCClass = cls.gcpolicy.transformerclass.GCClass
layoutbuilder = framework.TransformerLayoutBuilder(translator, GCClass)
layoutbuilder.delay_encoding()
def seeme():
marker[0] += 1
translator._jit2gc = {
'layoutbuilder': layoutbuilder,
'invoke_after_minor_collection': seeme,
}
return layoutbuilder