1 files changed, 68 insertions, 0 deletions
diff --git a/libyul/optimiser/Disambiguator.h b/libyul/optimiser/Disambiguator.h
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+++ b/libyul/optimiser/Disambiguator.h
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+/*
+	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/>.
+*/
+/**
+ * Optimiser component that makes all identifiers unique.
+ */
+
+#pragma once
+
+#include <libyul/ASTDataForward.h>
+
+#include <libyul/optimiser/ASTCopier.h>
+#include <libyul/optimiser/NameDispenser.h>
+
+#include <libsolidity/inlineasm/AsmAnalysisInfo.h>
+
+#include <boost/variant.hpp>
+#include <boost/optional.hpp>
+
+#include <set>
+
+namespace dev
+{
+namespace yul
+{
+
+/**
+ * Creates a copy of a Yul AST replacing all identifiers by unique names.
+ */
+class Disambiguator: public ASTCopier
+{
+public:
+	Disambiguator(solidity::assembly::AsmAnalysisInfo const& _analysisInfo):
+		m_info(_analysisInfo)
+	{}
+
+protected:
+	virtual void enterScope(Block const& _block) override;
+	virtual void leaveScope(Block const& _block) override;
+	virtual void enterFunction(FunctionDefinition const& _function) override;
+	virtual void leaveFunction(FunctionDefinition const& _function) override;
+	virtual std::string translateIdentifier(std::string const& _name) override;
+
+	void enterScopeInternal(solidity::assembly::Scope& _scope);
+	void leaveScopeInternal(solidity::assembly::Scope& _scope);
+
+	solidity::assembly::AsmAnalysisInfo const& m_info;
+
+	std::vector<solidity::assembly::Scope*> m_scopes;
+	std::map<void const*, std::string> m_translations;
+	NameDispenser m_nameDispenser;
+};
+
+}
+}