Output the storage layout of a contract via storageLayout artifact

libsolidity/interface/StorageLayout.h

@@ -0,0 +1,58 @@
+/*
+	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/>.
+*/
+/**
+ * Generates the storage layout of a contract.
+ */
+
+#pragma once
+
+#include <libsolidity/ast/AST.h>
+#include <libsolidity/ast/Types.h>
+
+#include <json/json.h>
+
+namespace dev
+{
+namespace solidity
+{
+
+class StorageLayout
+{
+public:
+	/// Generates the storage layout of the contract
+	/// @param _contractDef The contract definition
+	/// @return A JSON representation of the contract's storage layout.
+	Json::Value generate(ContractDefinition const& _contractDef);
+
+private:
+	/// Generates the JSON information for a variable and its storage location.
+	Json::Value generate(VariableDeclaration const& _var, u256 const& _slot, unsigned _offset);
+
+	/// Generates the JSON information for @param _type
+	void generate(TypePointer _type);
+
+	/// The key for the JSON object describing a type.
+	std::string typeKeyName(TypePointer _type);
+
+	Json::Value m_types;
+
+	/// Current analyzed contract
+	ContractDefinition const* m_contract = nullptr;
+};
+
+}
+}