Introduced TestCaseReader.

test/TestCaseReader.h

@@ -0,0 +1,61 @@
+/*
+	This file is part of solidity.
+
+	solidity is free software: you can redistribute it and/or modify
+	it under the terms of the GNU General Public License as published by
+	the Free Software Foundation, either version 3 of the License, or
+	(at your option) any later version.
+
+	solidity is distributed in the hope that it will be useful,
+	but WITHOUT ANY WARRANTY; without even the implied warranty of
+	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+	GNU General Public License for more details.
+
+	You should have received a copy of the GNU General Public License
+	along with solidity.  If not, see <http://www.gnu.org/licenses/>.
+*/
+
+#include <fstream>
+#include <map>
+#include <string>
+
+#pragma once
+
+namespace solidity::frontend::test
+{
+/**
+ * A reader for test case data file, which parses source, settings and (optionally) simple expectations.
+ */
+class TestCaseReader
+{
+public:
+	TestCaseReader() = default;
+	explicit TestCaseReader(std::string const& _filename);
+
+	std::map<std::string, std::string> const& sources() { return m_sources; }
+	std::string const& source();
+	std::size_t lineNumber() { return m_lineNumber; }
+	std::map<std::string, std::string> const& settings() { return m_settings; }
+	std::ifstream& stream() { return m_file; }
+
+	std::string simpleExpectations();
+
+	bool hasSetting(std::string const& _name) const;
+	bool boolSetting(std::string const& _name, bool _defaultValue);
+	size_t sizetSetting(std::string const& _name, size_t _defaultValue);
+	std::string stringSetting(std::string const& _name, std::string const& _defaultValue);
+	void setSetting(std::string const& _name, std::string const& _value);
+
+	void ensureAllSettingsRead() const;
+
+private:
+	std::pair<std::map<std::string, std::string>, std::size_t> parseSourcesAndSettingsWithLineNumber(std::istream& _file);
+	static std::string parseSimpleExpectations(std::istream& _file);
+
+	std::ifstream m_file;
+	std::map<std::string, std::string> m_sources;
+	std::size_t m_lineNumber = 0;
+	std::map<std::string, std::string> m_settings;
+	std::map<std::string, std::string> m_unreadSettings; ///< tracks which settings are left unread
+};
+}