Isolating files shared between Yul- and Solidity language frontend.

1 files changed, 0 insertions, 249 deletions

diff --git a/libsolidity/parsing/Scanner.h b/libsolidity/parsing/Scanner.h
deleted file mode 100644
index 14eeb66e..00000000
--- a/libsolidity/parsing/Scanner.h
+++ /dev/null
@@ -1,249 +0,0 @@
-/*
-	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/>.
-
-	This file is derived from the file "scanner.h", which was part of the
-	V8 project. The original copyright header follows:
-
-	Copyright 2006-2012, the V8 project authors. All rights reserved.
-	Redistribution and use in source and binary forms, with or without
-	modification, are permitted provided that the following conditions are
-	met:
-
-	* Redistributions of source code must retain the above copyright
-	  notice, this list of conditions and the following disclaimer.
-	* Redistributions in binary form must reproduce the above
-	  copyright notice, this list of conditions and the following
-	  disclaimer in the documentation and/or other materials provided
-	  with the distribution.
-	* Neither the name of Google Inc. nor the names of its
-	  contributors may be used to endorse or promote products derived
-	  from this software without specific prior written permission.
-
-	THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
-	"AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
-	LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
-	A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
-	OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
-	SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
-	LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
-	DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
-	THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
-	(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
-	OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
-*/
-/**
- * @author Christian <c@ethdev.com>
- * @date 2014
- * Solidity scanner.
- */
-
-#pragma once
-
-#include <libdevcore/Common.h>
-#include <libdevcore/CommonData.h>
-#include <libevmasm/SourceLocation.h>
-#include <libsolidity/parsing/Token.h>
-
-namespace dev
-{
-namespace solidity
-{
-
-
-class AstRawString;
-class AstValueFactory;
-class ParserRecorder;
-
-class CharStream
-{
-public:
-	CharStream(): m_position(0) {}
-	explicit CharStream(std::string const& _source): m_source(_source), m_position(0) {}
-	int position() const { return m_position; }
-	bool isPastEndOfInput(size_t _charsForward = 0) const { return (m_position + _charsForward) >= m_source.size(); }
-	char get(size_t _charsForward = 0) const { return m_source[m_position + _charsForward]; }
-	char advanceAndGet(size_t _chars = 1);
-	char rollback(size_t _amount);
-
-	void reset() { m_position = 0; }
-
-	std::string const& source() const { return m_source; }
-
-	///@{
-	///@name Error printing helper functions
-	/// Functions that help pretty-printing parse errors
-	/// Do only use in error cases, they are quite expensive.
-	std::string lineAtPosition(int _position) const;
-	std::tuple<int, int> translatePositionToLineColumn(int _position) const;
-	///@}
-
-private:
-	std::string m_source;
-	size_t m_position;
-};
-
-
-
-class Scanner
-{
-	friend class LiteralScope;
-public:
-
-	explicit Scanner(CharStream const& _source = CharStream(), std::string const& _sourceName = "") { reset(_source, _sourceName); }
-
-	std::string source() const { return m_source.source(); }
-
-	/// Resets the scanner as if newly constructed with _source and _sourceName as input.
-	void reset(CharStream const& _source, std::string const& _sourceName);
-	/// Resets scanner to the start of input.
-	void reset();
-
-	/// @returns the next token and advances input
-	Token next();
-
-	///@{
-	///@name Information about the current token
-
-	/// @returns the current token
-	Token currentToken() const
-	{
-		return m_currentToken.token;
-	}
-	ElementaryTypeNameToken currentElementaryTypeNameToken() const
-	{
-		unsigned firstSize;
-		unsigned secondSize;
-		std::tie(firstSize, secondSize) = m_currentToken.extendedTokenInfo;
-		return ElementaryTypeNameToken(m_currentToken.token, firstSize, secondSize);
-	}
-
-	SourceLocation currentLocation() const { return m_currentToken.location; }
-	std::string const& currentLiteral() const { return m_currentToken.literal; }
-	std::tuple<unsigned, unsigned> const& currentTokenInfo() const { return m_currentToken.extendedTokenInfo; }
-	///@}
-
-	///@{
-	///@name Information about the current comment token
-
-	SourceLocation currentCommentLocation() const { return m_skippedComment.location; }
-	std::string const& currentCommentLiteral() const { return m_skippedComment.literal; }
-	/// Called by the parser during FunctionDefinition parsing to clear the current comment
-	void clearCurrentCommentLiteral() { m_skippedComment.literal.clear(); }
-
-	///@}
-
-	///@{
-	///@name Information about the next token
-
-	/// @returns the next token without advancing input.
-	Token peekNextToken() const { return m_nextToken.token; }
-	SourceLocation peekLocation() const { return m_nextToken.location; }
-	std::string const& peekLiteral() const { return m_nextToken.literal; }
-	///@}
-
-	std::shared_ptr<std::string const> const& sourceName() const { return m_sourceName; }
-
-	///@{
-	///@name Error printing helper functions
-	/// Functions that help pretty-printing parse errors
-	/// Do only use in error cases, they are quite expensive.
-	std::string lineAtPosition(int _position) const { return m_source.lineAtPosition(_position); }
-	std::tuple<int, int> translatePositionToLineColumn(int _position) const { return m_source.translatePositionToLineColumn(_position); }
-	std::string sourceAt(SourceLocation const& _location) const
-	{
-		solAssert(!_location.isEmpty(), "");
-		solAssert(m_sourceName && _location.sourceName, "");
-		solAssert(*m_sourceName == *_location.sourceName, "");
-		return m_source.source().substr(_location.start, _location.end - _location.start);
-	}
-	///@}
-
-private:
-	/// Used for the current and look-ahead token and comments
-	struct TokenDesc
-	{
-		Token token;
-		SourceLocation location;
-		std::string literal;
-		std::tuple<unsigned, unsigned> extendedTokenInfo;
-	};
-
-	///@{
-	///@name Literal buffer support
-	inline void addLiteralChar(char c) { m_nextToken.literal.push_back(c); }
-	inline void addCommentLiteralChar(char c) { m_nextSkippedComment.literal.push_back(c); }
-	inline void addLiteralCharAndAdvance() { addLiteralChar(m_char); advance(); }
-	void addUnicodeAsUTF8(unsigned codepoint);
-	///@}
-
-	bool advance() { m_char = m_source.advanceAndGet(); return !m_source.isPastEndOfInput(); }
-	void rollback(int _amount) { m_char = m_source.rollback(_amount); }
-
-	inline Token selectToken(Token _tok) { advance(); return _tok; }
-	/// If the next character is _next, advance and return _then, otherwise return _else.
-	inline Token selectToken(char _next, Token _then, Token _else);
-
-	bool scanHexByte(char& o_scannedByte);
-	bool scanUnicode(unsigned& o_codepoint);
-
-	/// Scans a single Solidity token.
-	void scanToken();
-
-	/// Skips all whitespace and @returns true if something was skipped.
-	bool skipWhitespace();
-	/// Skips all whitespace that are neither '\r' nor '\n'.
-	void skipWhitespaceExceptUnicodeLinebreak();
-	Token skipSingleLineComment();
-	Token skipMultiLineComment();
-
-	void scanDecimalDigits();
-	Token scanNumber(char _charSeen = 0);
-	std::tuple<Token, unsigned, unsigned> scanIdentifierOrKeyword();
-
-	Token scanString();
-	Token scanHexString();
-	Token scanSingleLineDocComment();
-	Token scanMultiLineDocComment();
-	/// Scans a slash '/' and depending on the characters returns the appropriate token
-	Token scanSlash();
-
-	/// Scans an escape-sequence which is part of a string and adds the
-	/// decoded character to the current literal. Returns true if a pattern
-	/// is scanned.
-	bool scanEscape();
-
-	/// @returns true iff we are currently positioned at a unicode line break.
-	bool isUnicodeLinebreak();
-
-	/// Return the current source position.
-	int sourcePos() const { return m_source.position(); }
-	bool isSourcePastEndOfInput() const { return m_source.isPastEndOfInput(); }
-
-	TokenDesc m_skippedComment;  // desc for current skipped comment
-	TokenDesc m_nextSkippedComment; // desc for next skipped comment
-
-	TokenDesc m_currentToken;  // desc for current token (as returned by Next())
-	TokenDesc m_nextToken;     // desc for next token (one token look-ahead)
-
-	CharStream m_source;
-	std::shared_ptr<std::string const> m_sourceName;
-
-	/// one character look-ahead, equals 0 at end of input
-	char m_char;
-};
-
-}
-}