compiler: Add LocalObject._mem_shared

Author: FabioLuporini

devito/types/object.py

@@ -176,27 +176,28 @@ class LocalObject(AbstractObject, LocalType):
     """
 
     __rargs__ = ('name',)
-    __rkwargs__ = ('cargs', 'initvalue', 'liveness', 'is_global')
+    __rkwargs__ = ('cargs', 'initvalue', 'liveness', 'scope')
 
     def __init__(self, name, cargs=None, initvalue=None, liveness='lazy',
-                 is_global=False, **kwargs):
+                 scope='stack', **kwargs):
         self.name = name
         self.cargs = as_tuple(cargs)
         self.initvalue = initvalue or self.default_initvalue
 
         assert liveness in ['eager', 'lazy']
         self._liveness = liveness
 
-        self._is_global = is_global
+        assert scope in ['stack', 'shared', 'global']
+        self._scope = scope
 
     def _hashable_content(self):
         return (super()._hashable_content() +
                 self.cargs +
-                (self.initvalue, self.liveness, self.is_global))
+                (self.initvalue, self.liveness, self.scope))
 
     @property
-    def is_global(self):
-        return self._is_global
+    def scope(self):
+        return self._scope
 
     @property
     def free_symbols(self):
@@ -232,6 +233,10 @@ def _C_free(self):
         """
         return None
 
+    @property
+    def _mem_shared(self):
+        return self._scope == 'shared'
+
     @property
     def _mem_global(self):
-        return self._is_global
+        return self._scope == 'global'

tests/test_iet.py

@@ -354,7 +354,7 @@ class MyObject(LocalObject):
     lo0 = MyObject('obj0')
 
     # Globally-scoped objects must not be declared in the function body
-    lo1 = MyObject('obj1', is_global=True)
+    lo1 = MyObject('obj1', scope='global')
 
     # A LocalObject using both a template and a modifier
     class SpecialObject(LocalObject):