Remove Why3 generator

1 files changed, 0 insertions, 147 deletions

diff --git a/libsolidity/formal/Why3Translator.h b/libsolidity/formal/Why3Translator.h
deleted file mode 100644
index b48317be..00000000
--- a/libsolidity/formal/Why3Translator.h
+++ /dev/null
@@ -1,147 +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/>.
-*/
-/**
- * @author Christian <c@ethdev.com>
- * @date 2015
- * Component that translates Solidity code into the why3 programming language.
- */
-
-#pragma once
-
-#include <libsolidity/ast/ASTVisitor.h>
-#include <libsolidity/interface/ErrorReporter.h>
-#include <string>
-
-namespace dev
-{
-namespace solidity
-{
-
-class SourceUnit;
-
-/**
- * Simple translator from Solidity to Why3.
- *
- * @todo detect side effects in sub-expressions and limit them to one per statement. #1043
- * @todo `x = y = z`
- * @todo implicit and explicit type conversion
- */
-class Why3Translator: private ASTConstVisitor
-{
-public:
-	Why3Translator(ErrorReporter& _errorReporter): m_lines(std::vector<Line>{{std::string(), 0}}), m_errorReporter(_errorReporter) {}
-
-	/// Appends formalisation of the given source unit to the output.
-	/// @returns false on error.
-	bool process(SourceUnit const& _source);
-
-	std::string translation() const;
-
-private:
-	/// Appends imports and constants use throughout the formal code.
-	void appendPreface();
-
-	/// @returns a string representation of the corresponding formal type or throws NoFormalType exception.
-	std::string toFormalType(Type const& _type) const;
-	using errinfo_noFormalTypeFrom = boost::error_info<struct tag_noFormalTypeFrom, std::string /* name of the type that cannot be translated */ >;
-	struct NoFormalType: virtual Exception {};
-
-	void error(ASTNode const& _source, std::string const& _description);
-	void fatalError(ASTNode const& _source, std::string const& _description);
-
-	void indent() { newLine(); m_lines.back().indentation++; }
-	void unindent();
-	void addLine(std::string const& _line);
-	void add(std::string const& _str);
-	void newLine();
-	void appendSemicolon();
-
-	virtual bool visit(SourceUnit const&) override { return true; }
-	virtual bool visit(ContractDefinition const& _contract) override;
-	virtual void endVisit(ContractDefinition const& _contract) override;
-	virtual bool visit(FunctionDefinition const& _function) override;
-	virtual void endVisit(FunctionDefinition const& _function) override;
-	virtual bool visit(Block const&) override;
-	virtual bool visit(IfStatement const& _node) override;
-	virtual bool visit(WhileStatement const& _node) override;
-	virtual bool visit(Return const& _node) override;
-	virtual bool visit(Throw const& _node) override;
-	virtual bool visit(VariableDeclarationStatement const& _node) override;
-	virtual bool visit(ExpressionStatement const&) override;
-	virtual bool visit(Assignment const& _node) override;
-	virtual bool visit(TupleExpression const& _node) override;
-	virtual void endVisit(TupleExpression const&) override { add(")"); }
-	virtual bool visit(UnaryOperation const& _node) override;
-	virtual bool visit(BinaryOperation const& _node) override;
-	virtual bool visit(FunctionCall const& _node) override;
-	virtual bool visit(MemberAccess const& _node) override;
-	virtual bool visit(IndexAccess const& _node) override;
-	virtual bool visit(Identifier const& _node) override;
-	virtual bool visit(Literal const& _node) override;
-	virtual bool visit(PragmaDirective const& _node) override;
-
-	virtual bool visitNode(ASTNode const& _node) override
-	{
-		m_errorReporter.why3TranslatorError(_node, "Code not supported for formal verification.");
-		return false;
-	}
-
-	bool isStateVariable(VariableDeclaration const* _var) const;
-	bool isStateVariable(std::string const& _name) const;
-	bool isLocalVariable(VariableDeclaration const* _var) const;
-	bool isLocalVariable(std::string const& _name) const;
-
-	/// @returns a string representing an expression that is a copy of this.storage
-	std::string copyOfStorage() const;
-
-	/// Visits the given statement and indents it unless it is a block
-	/// (which does its own indentation).
-	void visitIndentedUnlessBlock(Statement const& _statement);
-
-	void addSourceFromDocStrings(DocumentedAnnotation const& _annotation);
-	/// Transforms substring like `#varName` and `#stateVarName` to code that evaluates to their value.
-	std::string transformVariableReferences(std::string const& _annotation);
-
-	/// True if we have already seen a contract. For now, only a single contract
-	/// is supported.
-	bool m_seenContract = false;
-	bool m_errorOccured = false;
-
-	/// Metadata relating to the current contract
-	struct ContractMetadata
-	{
-		ContractDefinition const* contract = nullptr;
-		std::vector<VariableDeclaration const*> stateVariables;
-
-		void reset() { contract = nullptr; stateVariables.clear(); }
-	};
-
-	ContractMetadata m_currentContract;
-	bool m_currentLValueIsRef = false;
-	std::map<std::string, VariableDeclaration const*> m_localVariables;
-
-	struct Line
-	{
-		std::string contents;
-		unsigned indentation;
-	};
-	std::vector<Line> m_lines;
-	ErrorReporter& m_errorReporter;
-};
-
-}
-}