!2938 Decouple the exception routines from Python.

Merge pull request !2938 from ZhangQinghua/master

mindspore/ccsrc/utils/log_adapter.cc

@@ -18,7 +18,6 @@
 
 #include <unistd.h>
 #include <map>
-#include "pybind11/pybind11.h"
 #include "debug/trace.h"
 
 // namespace to support utils module definition
@@ -219,16 +218,10 @@ void LogWriter::operator^(const LogStream &stream) const {
   trace::TraceGraphEval();
   trace::GetEvalStackInfo(oss);
 
-  if (exception_type_ == IndexError) {
-    throw pybind11::index_error(oss.str());
+  if (exception_handler_ != nullptr) {
+    exception_handler_(exception_type_, oss.str());
   }
-  if (exception_type_ == ValueError) {
-    throw pybind11::value_error(oss.str());
-  }
-  if (exception_type_ == TypeError) {
-    throw pybind11::type_error(oss.str());
-  }
-  pybind11::pybind11_fail(oss.str());
+  throw std::runtime_error(oss.str());
 }
 
 static std::string GetEnv(const std::string &envvar) {

mindspore/ccsrc/utils/log_adapter.h

@@ -22,6 +22,7 @@
 #include <string>
 #include <sstream>
 #include <memory>
+#include <functional>
 #include "./overload.h"
 #include "./securec.h"
 #ifdef USE_GLOG
@@ -133,6 +134,8 @@ extern int g_ms_submodule_log_levels[] __attribute__((visibility("default")));
 
 class LogWriter {
  public:
+  using ExceptionHandler = std::function<void(ExceptionType, const std::string &msg)>;
+
   LogWriter(const LocationInfo &location, MsLogLevel log_level, SubModuleId submodule,
             ExceptionType excp_type = NoExceptionType)
       : location_(location), log_level_(log_level), submodule_(submodule), exception_type_(excp_type) {}
@@ -141,6 +144,8 @@ class LogWriter {
   void operator<(const LogStream &stream) const noexcept __attribute__((visibility("default")));
   void operator^(const LogStream &stream) const __attribute__((noreturn, visibility("default")));
 
+  static void set_exception_handler(ExceptionHandler exception_handler) { exception_handler_ = exception_handler; }
+
  private:
   void OutputLog(const std::ostringstream &msg) const;
 
@@ -148,6 +153,8 @@ class LogWriter {
   MsLogLevel log_level_;
   SubModuleId submodule_;
   ExceptionType exception_type_;
+
+  inline static ExceptionHandler exception_handler_ = nullptr;
 };
 
 #define MSLOG_IF(level, condition, excp_type)                                                                       \

mindspore/ccsrc/utils/log_adapter_py.cc

@@ -0,0 +1,46 @@
+/**
+ * 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.
+ */
+
+#include "utils/log_adapter.h"
+
+#include <string>
+#include "pybind11/pybind11.h"
+
+namespace py = pybind11;
+namespace mindspore {
+class PyExceptionInitializer {
+ public:
+  PyExceptionInitializer() { mindspore::LogWriter::set_exception_handler(HandleExceptionPy); }
+
+  ~PyExceptionInitializer() = default;
+
+ private:
+  static void HandleExceptionPy(ExceptionType exception_type, const std::string &str) {
+    if (exception_type == IndexError) {
+      throw py::index_error(str);
+    }
+    if (exception_type == ValueError) {
+      throw py::value_error(str);
+    }
+    if (exception_type == TypeError) {
+      throw py::type_error(str);
+    }
+    py::pybind11_fail(str);
+  }
+};
+
+static PyExceptionInitializer py_exception_initializer;
+}  // namespace mindspore

tests/ut/cpp/operator/composite_test.cc

@@ -127,11 +127,17 @@ TEST_F(TestComposite, test_TupleSlice_arg_one_number) {
   try {
     trace::ClearTraceStack();
     engine_->Run(tupleSliceGraphPtr, args_spec_list);
-    FAIL() << "Excepted exception :Args type is wrong";
+    FAIL() << "Excepted exception: Args type is wrong";
   } catch (pybind11::type_error const &err) {
     ASSERT_TRUE(true);
+  } catch (std::runtime_error const &err) {
+    if (std::strstr(err.what(), "TypeError") != nullptr) {
+      ASSERT_TRUE(true);
+    } else {
+      FAIL() << "Excepted exception: Args type is wrong, message: " << err.what();
+    }
   } catch (...) {
-    FAIL() << "Excepted exception :Args type is wrong";
+    FAIL() << "Excepted exception: Args type is wrong";
   }
 }