!6069 support function as condition of if

Merge pull request !6069 from zhangbuxue/support_function_as_condition_of_if

mindspore/_extends/parse/standard_method.py

@@ -275,6 +275,11 @@ def none_bool(x):
     return False
 
 
+def func_bool(x):
+    """Implementation of `func_bool`."""
+    return True
+
+
 def float_floordiv(x, y):
     """Implementation of `float_floordiv`."""
     return floor(x / y)

mindspore/ccsrc/pipeline/jit/resource.cc

@@ -37,6 +37,10 @@ BuiltInTypeMap &GetMethodMap() {
                                        {
                                          {"__bool__", std::string("none_bool")}  // C.none_bool
                                        }},
+                                      {kObjectTypeFunction,
+                                       {
+                                         {"__bool__", std::string("func_bool")}  // C.str_bool
+                                       }},
                                       {kNumberTypeBool,
                                        {
                                          {"__and__", prim::kPrimBoolAnd},     // P.bool_and

tests/ut/python/pipeline/parse/test_if_function.py

@@ -0,0 +1,39 @@
+# Copyright 2020 Huawei Technologies Co., Ltd
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+# ============================================================================
+""" test if function"""
+import numpy as np
+
+import mindspore.nn as nn
+from mindspore import Tensor
+from mindspore import context
+
+context.set_context(mode=context.GRAPH_MODE)
+
+def test_if_function():
+    class Net(nn.Cell):
+        def __init__(self, func):
+            super(Net, self).__init__()
+            self.func = func
+
+        def construct(self, x, y):
+            if self.func:
+                return self.func(x, y)
+            return x - y
+    def add(x, y):
+        return x + y
+    net = Net(add)
+    x = Tensor(np.ones([1, 2, 3], np.int32))
+    y = Tensor(np.ones([1, 2, 3], np.int32))
+    net(x, y)

tests/ut/python/runtest.sh

@@ -36,28 +36,33 @@ if [ $# -eq 1 ]  &&  ([ "$1" == "stage1" ] || [ "$1" == "stage2" ] || [ "$1" ==
 
     elif [ $1 == "stage2" ]; then
         echo "run python parallel\train\ops ut"
-        pytest -n 4 --dist=loadfile -v $CURRPATH/parallel $CURRPATH/train $CURRPATH/ops
+        pytest -n 4 --dist=loadfile -v $CURRPATH/parallel $CURRPATH/train
+        RET=$?
+        if [ ${RET} -ne 0 ]; then
+            exit ${RET}
+        fi
+
+        pytest -n 2 --dist=loadfile -v $CURRPATH/ops
 
     elif [ $1 == "stage3" ]; then
         echo "run other ut"
         pytest --ignore=$CURRPATH/dataset --ignore=$CURRPATH/parallel --ignore=$CURRPATH/train  --ignore=$CURRPATH/ops --ignore=$CURRPATH/pynative_mode $IGNORE_EXEC $CURRPATH
-
         RET=$?
         if [ ${RET} -ne 0 ]; then
             exit ${RET}
         fi
+
         pytest $CURRPATH/pynative_mode
     fi
 else
     echo "run all python ut"
     pytest $CURRPATH/dataset
-
     RET=$?
     if [ ${RET} -ne 0 ]; then
         exit ${RET}
     fi
-    pytest -n 4 --dist=loadfile -v $CURRPATH/parallel $CURRPATH/train $CURRPATH/ops
 
+    pytest -n 4 --dist=loadfile -v $CURRPATH/parallel $CURRPATH/train $CURRPATH/ops
     RET=$?
     if [ ${RET} -ne 0 ]; then
         exit ${RET}
@@ -68,6 +73,7 @@ else
     if [ ${RET} -ne 0 ]; then
         exit ${RET}
     fi
+
     pytest $CURRPATH/pynative_mode
 fi