ceph/src/jaegertracing/thrift/lib/d/src/thrift/internal/traits.d

   1 /*
   2  * Licensed to the Apache Software Foundation (ASF) under one
   3  * or more contributor license agreements. See the NOTICE file
   4  * distributed with this work for additional information
   5  * regarding copyright ownership. The ASF licenses this file
   6  * to you under the Apache License, Version 2.0 (the
   7  * "License"); you may not use this file except in compliance
   8  * with the License. You may obtain a copy of the License at
   9  *
  10  *   http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing,
  13  * software distributed under the License is distributed on an
  14  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  15  * KIND, either express or implied. See the License for the
  16  * specific language governing permissions and limitations
  17  * under the License.
  18  */
  19 module thrift.internal.traits;
  20
  21 import std.traits;
  22
  23 /**
  24  * Adds »nothrow« to the type of the passed function pointer/delegate, if it
  25  * is not already present.
  26  *
  27  * Technically, assumeNothrow just performs a cast, but using it has the
  28  * advantage of being explicitly about the operation that is performed.
  29  */
  30 auto assumeNothrow(T)(T t) if (isFunctionPointer!T || isDelegate!T) {
  31   enum attrs = functionAttributes!T | FunctionAttribute.nothrow_;
  32   return cast(SetFunctionAttributes!(T, functionLinkage!T, attrs)) t;
  33 }