mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
58 lines
1.5 KiB
C++
58 lines
1.5 KiB
C++
/*
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This file is part of solidity.
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solidity is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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solidity is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with solidity. If not, see <http://www.gnu.org/licenses/>.
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*/
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// SPDX-License-Identifier: GPL-3.0
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/**
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* Interface to retrieve the character stream by a source name.
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*/
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#pragma once
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#include <liblangutil/CharStream.h>
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#include <liblangutil/Exceptions.h>
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#include <string>
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namespace solidity::langutil
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{
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/**
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* Interface to retrieve a CharStream (source) from a source name.
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* Used especially for printing error information.
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*/
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class CharStreamProvider
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{
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public:
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virtual ~CharStreamProvider() = default;
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virtual CharStream const& charStream(std::string const& _sourceName) const = 0;
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};
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class SingletonCharStreamProvider: public CharStreamProvider
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{
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public:
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explicit SingletonCharStreamProvider(CharStream const& _charStream):
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m_charStream(_charStream) {}
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CharStream const& charStream(std::string const& _sourceName) const override
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{
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solAssert(m_charStream.name() == _sourceName, "");
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return m_charStream;
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}
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private:
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CharStream const& m_charStream;
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};
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}
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