83 lines
2.1 KiB
C++
83 lines
2.1 KiB
C++
////////////////////////////////////////////////////////////////////////////
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//
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// Copyright 2015 Realm Inc.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// 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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#ifndef REALM_PARSER_HPP
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#define REALM_PARSER_HPP
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#include <vector>
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#include <string>
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namespace realm {
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class Schema;
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namespace parser {
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struct Expression
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{
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enum class Type { Number, String, KeyPath, Argument, True, False } type;
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std::string s;
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Expression() {}
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Expression(Type t, std::string s) : type(t), s(s) {}
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};
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struct Predicate
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{
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enum class Type {
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Comparison,
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Or,
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And,
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True,
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False
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} type = Type::And;
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enum class Operator {
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None,
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Equal,
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NotEqual,
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LessThan,
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LessThanOrEqual,
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GreaterThan,
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GreaterThanOrEqual,
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BeginsWith,
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EndsWith,
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Contains
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};
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struct Comparison {
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Operator op = Operator::None;
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Expression expr[2];
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~Comparison() {}
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};
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struct Compound {
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std::vector<Predicate> sub_predicates;
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};
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Comparison cmpr;
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Compound cpnd;
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bool negate = false;
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Predicate(Type t) : type(t) {}
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};
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Predicate parse(const std::string &query);
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}
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}
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#endif // REALM_PARSER_HPP
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