1fe6bf687d
Since origin tends to cast around, we should allow that too, by exposing the implementation type and using a shared_ptr instead of a value class.
58 lines
1.6 KiB
C++
58 lines
1.6 KiB
C++
/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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/*
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* Modified by Cloudius Systems
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*
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* Copyright 2014 Cloudius Systems
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*/
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#ifndef CQL3_FUNCTIONS_NATIVE_FUNCTION_HH
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#define CQL3_FUNCTIONS_NATIVE_FUNCTION_HH
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#include "abstract_function.hh"
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namespace cql3 {
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namespace functions {
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/**
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* Base class for our native/hardcoded functions.
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*/
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class native_function : public abstract_function {
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protected:
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native_function(sstring name, shared_ptr<abstract_type> return_type, std::vector<shared_ptr<abstract_type>> arg_types)
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: abstract_function(function_name::native_function(std::move(name)),
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std::move(arg_types), std::move(return_type)) {
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}
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public:
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// Most of our functions are pure, the other ones should override this
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virtual bool is_pure() override {
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return true;
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}
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virtual bool is_native() override {
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return true;
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}
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};
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}
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}
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#endif
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