def _eager_safe_variable_handle(shape, dtype, shared_name, name, graph_mode):
"""Creates a variable handle with information to do shape inference."""
container = ops.get_default_graph()._container # pylint: disable=protected-access
if container is None:
container = ""
handle = resource_variable_ops.var_handle_op(shape=shape, dtype=dtype,
shared_name=shared_name,
name=name,
container=container)
if graph_mode:
return handle
with context.graph_mode(), ops.Graph().as_default() as graph:
h = resource_variable_ops.var_handle_op(shape=shape, dtype=dtype,
shared_name=shared_name,
name=name,
container=container)
# Tensor._handle_data contains information for the shape-inference code to
# know the shape and dtype of the variable pointed to by a handle. Since
# shape inference doesn't run in eager mode we copy this data here for when
# the handle is captured by an eager mode function.
# pylint: disable=protected-access
handle._handle_data = resource_variable_ops.get_resource_handle_data(h)
# pylint: enable=protected-access
# Clean up op->graph->op reference cycles.
ops.dismantle_graph(graph)
return handle
def testSharedName(self):
v = resource_variable_ops.ResourceVariable(300.0, name="var4")
self.evaluate(variables.global_variables_initializer())
w = resource_variable_ops.var_handle_op(
dtype=v.dtype.base_dtype, shape=v.get_shape(), shared_name="var4")
w_read = resource_variable_ops.read_variable_op(w, v.dtype.base_dtype)
self.assertEqual(300.0, self.evaluate(w_read))
x = resource_variable_ops.var_handle_op(
dtype=v.dtype.base_dtype, shape=v.get_shape(), shared_name="var5")
with self.assertRaisesOpError("Resource .*/var5/.* does not exist"):
x_read = resource_variable_ops.read_variable_op(x, v.dtype.base_dtype)
self.evaluate(x_read)
def testSharedName(self):
with self.test_session():
v = resource_variable_ops.ResourceVariable(300.0, name="var1")
v.initializer.run()
w = resource_variable_ops.var_handle_op(
dtype=v.dtype.base_dtype, shape=v.get_shape(), shared_name="var1")
w_read = resource_variable_ops.read_variable_op(w, v.dtype.base_dtype)
self.assertEqual(300.0, w_read.eval())
x = resource_variable_ops.var_handle_op(
dtype=v.dtype.base_dtype, shape=v.get_shape(), shared_name="var1/")
x_read = resource_variable_ops.read_variable_op(x, v.dtype.base_dtype)
with self.assertRaisesOpError("Resource .*/var1//.* does not exist"):
_ = x_read.eval()
def testCreateRead(self):
handle = resource_variable_ops.var_handle_op(dtype=dtypes.int32, shape=[])
self.evaluate(resource_variable_ops.assign_variable_op(
handle, constant_op.constant(1, dtype=dtypes.int32)))
value = self.evaluate(
resource_variable_ops.read_variable_op(handle, dtype=dtypes.int32))
self.assertAllEqual(1, value)
def _custom_getter(getter=None, name=None, shape=None, dtype=dtypes.float32, # pylint: disable=missing-docstring
initializer=None, regularizer=None, reuse=None,
trainable=True, collections=None, caching_device=None, # pylint: disable=redefined-outer-name
partitioner=None, validate_shape=True,
use_resource=None):
del getter, regularizer, collections, caching_device, partitioner
del use_resource, validate_shape
if name in self.tf_variables:
if reuse:
return self.tf_variables[name].initialized_value()
else:
raise ValueError("Specified reuse=%s but tried to reuse variables."
% reuse)
# TODO(apassos): ensure this is on the same device as above
v = _CapturedVariable(name, initializer, shape, dtype, trainable)
self.variables[name] = v
graph_mode_resource = resource_variable_ops.var_handle_op(
shared_name=name, shape=shape, dtype=dtype)
if initializer is None:
initializer = _default_initializer(name, shape, dtype)
resource_variable_ops.assign_variable_op(
graph_mode_resource, initializer(shape, dtype))
return _VariableFromResource(
graph_mode_resource, dtype, name, shape=v.shape)
def testAssignAdd(self):
with self.test_session():
handle = resource_variable_ops.var_handle_op(dtype=dtypes.int32, shape=[])
resource_variable_ops.assign_variable_op(handle, constant_op.constant(1, dtype=dtypes.int32)).run()
resource_variable_ops.assign_add_variable_op(handle, constant_op.constant(1, dtype=dtypes.int32)).run()
read = resource_variable_ops.read_variable_op(handle, dtype=dtypes.int32)
self.assertEqual(read.eval(), 2)
def testHandleDtypeShapeMatch(self):
with self.test_session():
handle = resource_variable_ops.var_handle_op(dtype=dtypes.int32, shape=[])
with self.assertRaises(ValueError):
resource_variable_ops.assign_variable_op(handle, constant_op.constant(0.0, dtype=dtypes.float32)).run()
with self.assertRaises(ValueError):
resource_variable_ops.assign_variable_op(handle, constant_op.constant([0], dtype=dtypes.int32)).run()
resource_variable_ops.assign_variable_op(handle, constant_op.constant(0, dtype=dtypes.int32)).run()
def testDtypeSurvivesIdentity(self):
with self.test_session():
handle = resource_variable_ops.var_handle_op(dtype=dtypes.int32, shape=[])
id_handle = array_ops.identity(handle)
resource_variable_ops.assign_variable_op(id_handle,
constant_op.constant(
0,
dtype=dtypes.int32)).run()
def testReadVariableDtypeMismatchEager(self):
with context.eager_mode():
handle = resource_variable_ops.var_handle_op(
dtype=dtypes.int32, shape=[1], name="foo")
with self.assertRaisesRegexp(errors.InvalidArgumentError,
"Trying to read variable with wrong dtype. "
"Expected float got int32."):
_ = resource_variable_ops.read_variable_op(handle, dtype=dtypes.float32)
def testCreateRead(self):
with self.test_session():
handle = resource_variable_ops.var_handle_op(dtype=dtypes.int32, shape=[])
resource_variable_ops.assign_variable_op(
handle, constant_op.constant(1, dtype=dtypes.int32)).run()
value = resource_variable_ops.read_variable_op(
handle, dtype=dtypes.int32).eval()
self.assertAllEqual(1, value)
def testSharedName(self):
with self.cached_session():
v = resource_variable_ops.ResourceVariable(300.0, name="var4")
variables.global_variables_initializer().run()
w = resource_variable_ops.var_handle_op(
dtype=v.dtype.base_dtype, shape=v.get_shape(), shared_name="var4",
# Needed in Eager since we get a unique container name by default.
container=ops.get_default_graph()._container)
w_read = resource_variable_ops.read_variable_op(w, v.dtype.base_dtype)
self.assertEqual(300.0, self.evaluate(w_read))
x = resource_variable_ops.var_handle_op(
dtype=v.dtype.base_dtype, shape=v.get_shape(), shared_name="var5",
container=ops.get_default_graph()._container)
with self.assertRaisesOpError("Resource .*/var5/.* does not exist"):
resource_variable_ops.read_variable_op(x, v.dtype.base_dtype).eval()
def testScatterAdd(self):
with self.test_session():
handle = resource_variable_ops.var_handle_op(dtype=dtypes.int32, shape=[1, 1])
resource_variable_ops.assign_variable_op(handle, constant_op.constant([[1]], dtype=dtypes.int32)).run()
resource_variable_ops.resource_scatter_add(
handle, [0], constant_op.constant([[2]], dtype=dtypes.int32)
).run()
read = resource_variable_ops.read_variable_op(handle, dtype=dtypes.int32)
self.assertEqual(read.eval(), [[3]])
def testSharedNameWithNamescope(self):
with ops.name_scope("foo"):
v = resource_variable_ops.ResourceVariable(300.0, name="var3")
self.evaluate(variables.global_variables_initializer())
w = resource_variable_ops.var_handle_op(
dtype=v.dtype.base_dtype, shape=v.get_shape(), shared_name="foo/var3")
w_read = resource_variable_ops.read_variable_op(w, v.dtype.base_dtype)
self.assertEqual(300.0, self.evaluate(w_read))
def testScatterAdd(self):
handle = resource_variable_ops.var_handle_op(
dtype=dtypes.int32, shape=[1, 1])
self.evaluate(resource_variable_ops.assign_variable_op(
handle, constant_op.constant([[1]], dtype=dtypes.int32)))
self.evaluate(resource_variable_ops.resource_scatter_add(
handle, [0], constant_op.constant([[2]], dtype=dtypes.int32)))
read = resource_variable_ops.read_variable_op(handle, dtype=dtypes.int32)
self.assertEqual(self.evaluate(read), [[3]])
def testAssignAdd(self):
handle = resource_variable_ops.var_handle_op(dtype=dtypes.int32, shape=[])
self.evaluate(resource_variable_ops.assign_variable_op(
handle, constant_op.constant(1, dtype=dtypes.int32)))
self.evaluate(resource_variable_ops.assign_add_variable_op(
handle, constant_op.constant(1, dtype=dtypes.int32)))
read = self.evaluate(
resource_variable_ops.read_variable_op(handle, dtype=dtypes.int32))
self.assertEqual(read, 2)
def testSharedName(self):
v = resource_variable_ops.ResourceVariable(300.0, name="var1")
self.evaluate(variables.global_variables_initializer())
w = resource_variable_ops.var_handle_op(
dtype=v.dtype.base_dtype, shape=v.get_shape(), shared_name="var1")
w_read = resource_variable_ops.read_variable_op(w, v.dtype.base_dtype)
self.assertEqual(300.0, self.evaluate(w_read))
x = resource_variable_ops.var_handle_op(
dtype=v.dtype.base_dtype, shape=v.get_shape(), shared_name="var2")
if context.in_graph_mode():
with self.assertRaisesOpError("Resource .*/var2/.* does not exist"):
x_read = resource_variable_ops.read_variable_op(x, v.dtype.base_dtype)
self.evaluate(x_read)
else:
with self.assertRaisesRegexp(errors.NotFoundError,
"Attempted to read a nonexistent variable."):
_ = resource_variable_ops.read_variable_op(x, v.dtype.base_dtype)
def testSharedNameWithNamescope(self):
with self.test_session():
with ops.name_scope("foo"):
v = resource_variable_ops.ResourceVariable(300.0, name="var1")
v.initializer.run()
w = resource_variable_ops.var_handle_op(
dtype=v.dtype.base_dtype, shape=v.get_shape(), shared_name="foo/var1")
w_read = resource_variable_ops.read_variable_op(w, v.dtype.base_dtype)
self.assertEqual(300.0, w_read.eval())
def testScatterUpdateString(self):
handle = resource_variable_ops.var_handle_op(
dtype=dtypes.string, shape=[1, 1])
self.evaluate(resource_variable_ops.assign_variable_op(
handle, constant_op.constant([["a"]], dtype=dtypes.string)))
self.evaluate(resource_variable_ops.resource_scatter_update(
handle, [0], constant_op.constant([["b"]], dtype=dtypes.string)))
read = resource_variable_ops.read_variable_op(handle, dtype=dtypes.string)
self.assertEqual(compat.as_bytes(self.evaluate(read)[0][0]),
compat.as_bytes("b"))
def testAssignVariableDtypeMismatchEager(self):
with context.eager_mode():
handle = resource_variable_ops.var_handle_op(
dtype=dtypes.int32, shape=[1], name="foo")
resource_variable_ops.assign_variable_op(
handle, constant_op.constant([1]))
with self.assertRaisesRegexp(errors.InvalidArgumentError,
"Trying to assign variable with wrong "
"dtype. Expected int32 got float."):
resource_variable_ops.assign_variable_op(
handle, constant_op.constant([1.], dtype=dtypes.float32))
def testDestroyResource(self):
v = resource_variable_ops.ResourceVariable(3.0, name="var0")
self.evaluate(variables.global_variables_initializer())
self.assertEqual(3.0, self.evaluate(v.value()))
self.evaluate(resource_variable_ops.destroy_resource_op(v.handle))
with self.assertRaises(errors.FailedPreconditionError):
self.evaluate(v.value())
# Handle to a resource not actually created.
handle = resource_variable_ops.var_handle_op(dtype=dtypes.int32, shape=[])
# Should raise no exception
self.evaluate(resource_variable_ops.destroy_resource_op(
handle, ignore_lookup_error=True))
def testScatterMaxScalar(self):
with self.test_session() as sess, self.test_scope():
handle = resource_variable_ops.var_handle_op(
dtype=dtypes.int32, shape=[1, 1])
sess.run(
resource_variable_ops.assign_variable_op(
handle, constant_op.constant([[6]], dtype=dtypes.int32)))
sess.run(
resource_variable_ops.resource_scatter_max(
handle, [0], constant_op.constant(3, dtype=dtypes.int32)))
read = resource_variable_ops.read_variable_op(handle, dtype=dtypes.int32)
self.assertEqual(self.evaluate(read), [[6]])
def testScatterSub(self):
with self.test_session() as sess, self.test_scope():
handle = resource_variable_ops.var_handle_op(
dtype=dtypes.int32, shape=[2, 1])
sess.run(
resource_variable_ops.assign_variable_op(
handle, constant_op.constant([[4], [1]], dtype=dtypes.int32)))
sess.run(
resource_variable_ops.resource_scatter_sub(
handle, [1], constant_op.constant([[2]], dtype=dtypes.int32)))
read = resource_variable_ops.read_variable_op(handle, dtype=dtypes.int32)
self.assertAllEqual(self.evaluate(read), [[4], [-1]])
def testScatterDiv(self):
with self.test_session() as sess, self.test_scope():
handle = resource_variable_ops.var_handle_op(
dtype=dtypes.int32, shape=[1, 1])
sess.run(
resource_variable_ops.assign_variable_op(
handle, constant_op.constant([[6]], dtype=dtypes.int32)))
sess.run(
resource_variable_ops.resource_scatter_div(
handle, [0], constant_op.constant([[3]], dtype=dtypes.int32)))
read = resource_variable_ops.read_variable_op(handle, dtype=dtypes.int32)
self.assertAllEqual(sess.run(read), [[2]])
def testDestroyResource(self):
with self.test_session() as sess:
v = resource_variable_ops.ResourceVariable(3.0)
variables.global_variables_initializer().run()
self.assertEqual(3.0, v.value().eval())
sess.run(resource_variable_ops.destroy_resource_op(v.handle))
with self.assertRaises(errors.NotFoundError):
v.value().eval()
# Handle to a resource not actually created.
handle = resource_variable_ops.var_handle_op(dtype=dtypes.int32, shape=[])
# Should raise no exception
sess.run(resource_variable_ops.destroy_resource_op(
handle, ignore_lookup_error=True))
def testManyAssigns(self):
with self.test_session() as session:
handle = resource_variable_ops.var_handle_op(dtype=dtypes.int32, shape=[])
create = resource_variable_ops.assign_variable_op(handle, constant_op.constant(1, dtype=dtypes.int32))
with ops.control_dependencies([create]):
first_read = resource_variable_ops.read_variable_op(handle, dtype=dtypes.int32)
with ops.control_dependencies([first_read]):
write = resource_variable_ops.assign_variable_op(handle, constant_op.constant(2, dtype=dtypes.int32))
with ops.control_dependencies([write]):
second_read = resource_variable_ops.read_variable_op(handle, dtype=dtypes.int32)
f, s = session.run([first_read, second_read])
self.assertEqual(f, 1)
self.assertEqual(s, 2)
def testScatterUpdate(self):
with self.test_session() as sess, self.test_scope():
handle = resource_variable_ops.var_handle_op(dtype=dtypes.int32,
shape=[1, 1])
sess.run(
resource_variable_ops.assign_variable_op(
handle, constant_op.constant([[6]], dtype=dtypes.int32)))
sess.run(
resource_variable_ops.resource_scatter_update(
handle, [0], constant_op.constant([[3]],
dtype=dtypes.int32)))
read = resource_variable_ops.read_variable_op(handle,
dtype=dtypes.int32)
self.assertEqual(sess.run(read), [[3]])
def testScatterAdd(self):
with ops.device("cpu:0"):
handle = resource_variable_ops.var_handle_op(dtype=dtypes.int32,
shape=[1, 1])
self.evaluate(
resource_variable_ops.assign_variable_op(
handle, constant_op.constant([[1]], dtype=dtypes.int32)))
self.evaluate(
resource_variable_ops.resource_scatter_add(
handle, [0], constant_op.constant([[2]],
dtype=dtypes.int32)))
read = resource_variable_ops.read_variable_op(handle,
dtype=dtypes.int32)
self.assertEqual(self.evaluate(read), [[3]])
def testScatterUpdateString(self):
handle = resource_variable_ops.var_handle_op(dtype=dtypes.string,
shape=[1, 1])
self.evaluate(
resource_variable_ops.assign_variable_op(
handle, constant_op.constant([["a"]], dtype=dtypes.string)))
self.evaluate(
resource_variable_ops.resource_scatter_update(
handle, [0], constant_op.constant([["b"]],
dtype=dtypes.string)))
read = resource_variable_ops.read_variable_op(handle,
dtype=dtypes.string)
self.assertEqual(compat.as_bytes(self.evaluate(read)[0][0]),
compat.as_bytes("b"))
def testScatterNdAddOps(self):
with self.test_session() as sess, self.test_scope():
handle = resource_variable_ops.var_handle_op(
dtype=dtypes.float32, shape=[8])
sess.run(
resource_variable_ops.assign_variable_op(
handle, constant_op.constant([1] * 8, dtype=dtypes.float32)))
indices = constant_op.constant([[4], [3], [1], [7]], dtype=dtypes.int32)
updates = constant_op.constant([9, 10, 11, 12], dtype=dtypes.float32)
expected = np.array([1, 12, 1, 11, 10, 1, 1, 13])
sess.run(gen_state_ops.resource_scatter_nd_add(handle, indices, updates))
read = resource_variable_ops.read_variable_op(
handle, dtype=dtypes.float32)
self.assertAllClose(expected, self.evaluate(read))
def testSharedNameWithNamescope(self):
with self.cached_session():
with ops.name_scope("foo"):
v = resource_variable_ops.ResourceVariable(300.0, name="var6")
self.assertEqual("foo/var6", v._shared_name) # pylint: disable=protected-access
self.assertEqual("foo/var6:0", v.name)
self.evaluate(variables.global_variables_initializer())
w = resource_variable_ops.var_handle_op(
dtype=v.dtype.base_dtype, shape=v.get_shape(), shared_name="foo/var6",
# Needed in Eager since we get a unique container name by default.
container=ops.get_default_graph()._container)
w_read = resource_variable_ops.read_variable_op(w, v.dtype.base_dtype)
self.assertEqual(300.0, self.evaluate(w_read))
def testDestroyResource(self):
v = resource_variable_ops.ResourceVariable(3.0, name="var0")
self.evaluate(variables.global_variables_initializer())
self.assertEqual(3.0, self.evaluate(v.value()))
self.evaluate(resource_variable_ops.destroy_resource_op(v.handle))
with self.assertRaises(errors.FailedPreconditionError):
self.evaluate(v.value())
# Handle to a resource not actually created.
handle = resource_variable_ops.var_handle_op(dtype=dtypes.int32,
shape=[])
# Should raise no exception
self.evaluate(
resource_variable_ops.destroy_resource_op(
handle, ignore_lookup_error=True))
def testScatterNdAddOps(self):
with self.test_session() as sess, self.test_scope():
handle = resource_variable_ops.var_handle_op(
dtype=dtypes.float32, shape=[8])
sess.run(
resource_variable_ops.assign_variable_op(
handle, constant_op.constant([1] * 8, dtype=dtypes.float32)))
indices = constant_op.constant([[4], [3], [1], [7]], dtype=dtypes.int32)
updates = constant_op.constant([9, 10, 11, 12], dtype=dtypes.float32)
expected = np.array([1, 12, 1, 11, 10, 1, 1, 13])
sess.run(gen_state_ops.resource_scatter_nd_add(handle, indices, updates))
read = resource_variable_ops.read_variable_op(
handle, dtype=dtypes.float32)
self.assertAllClose(expected, self.evaluate(read))
def testHandleDtypeShapeMatch(self):
with self.test_session():
handle = resource_variable_ops.var_handle_op(dtype=dtypes.int32,
shape=[])
with self.assertRaises(ValueError):
resource_variable_ops.assign_variable_op(
handle, constant_op.constant(0.0,
dtype=dtypes.float32)).run()
with self.assertRaises(ValueError):
resource_variable_ops.assign_variable_op(
handle, constant_op.constant([0],
dtype=dtypes.int32)).run()
resource_variable_ops.assign_variable_op(
handle, constant_op.constant(0, dtype=dtypes.int32)).run()
def testSharedNameWithNamescope(self):
with self.test_session():
with ops.name_scope("foo"):
v = resource_variable_ops.ResourceVariable(300.0, name="var6")
self.assertEqual("foo/var6", v._shared_name) # pylint: disable=protected-access
self.assertEqual("foo/var6:0", v.name)
self.evaluate(variables.global_variables_initializer())
w = resource_variable_ops.var_handle_op(
dtype=v.dtype.base_dtype, shape=v.get_shape(), shared_name="foo/var6",
# Needed in Eager since we get a unique container name by default.
container=ops.get_default_graph()._container)
w_read = resource_variable_ops.read_variable_op(w, v.dtype.base_dtype)
self.assertEqual(300.0, self.evaluate(w_read))
def testDestroyResource(self):
with self.test_session() as sess:
v = resource_variable_ops.ResourceVariable(3.0)
variables.global_variables_initializer().run()
self.assertEqual(3.0, v.value().eval())
sess.run(resource_variable_ops.destroy_resource_op(v.handle))
with self.assertRaises(errors.NotFoundError):
v.value().eval()
# Handle to a resource not actually created.
handle = resource_variable_ops.var_handle_op(dtype=dtypes.int32,
shape=[])
# Should raise no exception
sess.run(
resource_variable_ops.destroy_resource_op(
handle, ignore_lookup_error=True))
def testScatterSub(self):
with self.session() as sess, self.test_scope():
handle = resource_variable_ops.var_handle_op(dtype=dtypes.int32,
shape=[2, 1])
sess.run(
resource_variable_ops.assign_variable_op(
handle, constant_op.constant([[4], [1]],
dtype=dtypes.int32)))
sess.run(
resource_variable_ops.resource_scatter_sub(
handle, [1], constant_op.constant([[2]],
dtype=dtypes.int32)))
read = resource_variable_ops.read_variable_op(handle,
dtype=dtypes.int32)
self.assertAllEqual(self.evaluate(read), [[4], [-1]])
def testScatterAdd(self):
with self.test_session() as sess, self.test_scope():
handle = resource_variable_ops.var_handle_op(dtype=dtypes.int32,
shape=[2, 1])
sess.run(
resource_variable_ops.assign_variable_op(
handle, constant_op.constant([[1], [7]],
dtype=dtypes.int32)))
sess.run(
resource_variable_ops.resource_scatter_add(
handle, [0], constant_op.constant([[2]],
dtype=dtypes.int32)))
read = resource_variable_ops.read_variable_op(handle,
dtype=dtypes.int32)
self.assertAllEqual(sess.run(read), [[3], [7]])
def testSharedName(self):
with self.test_session():
v = resource_variable_ops.ResourceVariable(300.0, name="var4")
variables.global_variables_initializer().run()
w = resource_variable_ops.var_handle_op(
dtype=v.dtype.base_dtype,
shape=v.get_shape(),
shared_name="var4",
# Needed in Eager since we get a unique container name by default.
container=ops.get_default_graph()._container)
w_read = resource_variable_ops.read_variable_op(
w, v.dtype.base_dtype)
self.assertEqual(300.0, w_read.eval())
x = resource_variable_ops.var_handle_op(
dtype=v.dtype.base_dtype,
shape=v.get_shape(),
shared_name="var5",
container=ops.get_default_graph()._container)
with self.assertRaisesOpError(
"Resource .*/var5/.* does not exist"):
resource_variable_ops.read_variable_op(
x, v.dtype.base_dtype).eval()
def _eager_safe_variable_handle(shape, dtype, shared_name, name, graph_mode):
"""Creates a variable handle with information to do shape inference."""
container = ops.get_default_graph()._container # pylint: disable=protected-access
if container is None:
container = ""
handle = resource_variable_ops.var_handle_op(shape=shape,
dtype=dtype,
shared_name=shared_name,
name=name,
container=container)
if graph_mode:
return handle
with context.graph_mode(), ops.Graph().as_default() as graph:
h = resource_variable_ops.var_handle_op(shape=shape,
dtype=dtype,
shared_name=shared_name,
name=name,
container=container)
# Tensor._handle_data contains information for the shape-inference code to
# know the shape and dtype of the variable pointed to by a handle. Since
# shape inference doesn't run in eager mode we copy this data here for when
# the handle is captured by an eager mode function.
# pylint: disable=protected-access
if ops._USE_C_SHAPES:
handle._handle_data = resource_variable_ops.get_resource_handle_data(
h)
else:
if h._handle_data is None:
ops.set_shape_and_handle_data_for_outputs(h.op)
handle._handle_data = h._handle_data
# pylint: enable=protected-access
# Clean up op->graph->op reference cycles.
ops.dismantle_graph(graph)
return handle
def testScatterMin(self):
with ops.device("cpu:0"):
handle = resource_variable_ops.var_handle_op(
dtype=dtypes.int32, shape=[1, 1])
self.evaluate(
resource_variable_ops.assign_variable_op(handle,
constant_op.constant(
[[6]],
dtype=dtypes.int32)))
self.evaluate(
resource_variable_ops.resource_scatter_min(handle, [0],
constant_op.constant(
[[3]],
dtype=dtypes.int32)))
read = resource_variable_ops.read_variable_op(handle, dtype=dtypes.int32)
self.assertEqual(self.evaluate(read), [[3]])
def testManyAssigns(self):
handle = resource_variable_ops.var_handle_op(dtype=dtypes.int32, shape=[])
create = resource_variable_ops.assign_variable_op(
handle, constant_op.constant(1, dtype=dtypes.int32))
with ops.control_dependencies([create]):
first_read = resource_variable_ops.read_variable_op(
handle, dtype=dtypes.int32)
with ops.control_dependencies([first_read]):
write = resource_variable_ops.assign_variable_op(
handle, constant_op.constant(2, dtype=dtypes.int32))
with ops.control_dependencies([write]):
second_read = resource_variable_ops.read_variable_op(
handle, dtype=dtypes.int32)
f, s = self.evaluate([first_read, second_read])
self.assertEqual(f, 1)
self.assertEqual(s, 2)
def _custom_getter(
getter=None,
name=None,
shape=None,
dtype=dtypes.float32, # pylint: disable=missing-docstring
initializer=None,
regularizer=None,
reuse=None,
trainable=True,
collections=None,
caching_device=None, # pylint: disable=redefined-outer-name
partitioner=None,
validate_shape=True,
use_resource=None):
del getter, regularizer, collections, caching_device, partitioner
del use_resource, validate_shape
if name in self.tf_variables:
if reuse:
return self.tf_variables[name].initialized_value()
else:
raise ValueError(
"Specified reuse=%s but tried to reuse variables." %
reuse)
# TODO(apassos): ensure this is on the same device as above
v = _CapturedVariable(name, initializer, shape, dtype, trainable)
self.variables[name] = v
graph_mode_resource = resource_variable_ops.var_handle_op(
shared_name=name, shape=shape, dtype=dtype)
if initializer is None:
initializer = _default_initializer(name, shape, dtype)
with tf_ops.control_dependencies([
resource_variable_ops.assign_variable_op(
graph_mode_resource, initializer(shape, dtype))
]):
handle = array_ops.identity(v.variable.handle)
return _VariableFromResource(handle, dtype, name, shape=v.shape)
def testDtypeSurvivesIdentity(self):
handle = resource_variable_ops.var_handle_op(dtype=dtypes.int32, shape=[])
id_handle = array_ops.identity(handle)
self.evaluate(resource_variable_ops.assign_variable_op(
id_handle, constant_op.constant(0, dtype=dtypes.int32)))
def testDtypeSurvivesIdentity(self):
handle = resource_variable_ops.var_handle_op(dtype=dtypes.int32, shape=[])
id_handle = array_ops.identity(handle)
self.evaluate(resource_variable_ops.assign_variable_op(
id_handle, constant_op.constant(0, dtype=dtypes.int32)))
def testDtypeSurvivesIdentity(self):
with self.test_session():
handle = resource_variable_ops.var_handle_op(dtype=dtypes.int32, shape=[])
id_handle = array_ops.identity(handle)
resource_variable_ops.assign_variable_op(
id_handle, constant_op.constant(0, dtype=dtypes.int32)).run()
def testFetchHandle(self):
with self.test_session():
handle = resource_variable_ops.var_handle_op(
dtype=dtypes.int32, shape=[1], name="foo")
self.assertGreater(len(handle.eval()), 0)
def testUnprintableHandle(self):
with context.eager_mode():
handle = resource_variable_ops.var_handle_op(
dtype=dtypes.int32, shape=[1], name="foo")
self.assertIn("<unprintable>", str(handle))
self.assertIn("<unprintable>", repr(handle))
def testUnprintableHandle(self):
with context.eager_mode():
handle = resource_variable_ops.var_handle_op(
dtype=dtypes.int32, shape=[1], name="foo")
self.assertIn("<unprintable>", str(handle))
self.assertIn("<unprintable>", repr(handle))