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authorchriseth <c@ethdev.com>2015-10-21 06:21:52 +0800
committerchriseth <c@ethdev.com>2015-10-21 06:46:01 +0800
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parentd41f8b7ce702c3b25c48d27e2e895ccdcd04e4e0 (diff)
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+/*
+ This file is part of cpp-ethereum.
+
+ cpp-ethereum 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.
+
+ cpp-ethereum 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 cpp-ethereum. If not, see <http://www.gnu.org/licenses/>.
+*/
+/**
+ * @author Lefteris <lefteris@ethdev.com>
+ * @date 2015
+ * Converts the AST into json format
+ */
+
+#pragma once
+
+#include <ostream>
+#include <stack>
+#include <libsolidity/ast/ASTVisitor.h>
+#include <libsolidity/interface/Exceptions.h>
+#include <libsolidity/interface/Utils.h>
+#include <libsolidity/ast/ASTAnnotations.h>
+#include <json/json.h>
+
+namespace dev
+{
+namespace solidity
+{
+
+/**
+ * Converter of the AST into JSON format
+ */
+class ASTJsonConverter: public ASTConstVisitor
+{
+public:
+ /// Create a converter to JSON for the given abstract syntax tree.
+ explicit ASTJsonConverter(ASTNode const& _ast);
+ /// Output the json representation of the AST to _stream.
+ void print(std::ostream& _stream);
+ Json::Value const& json();
+
+ bool visit(ImportDirective const& _node) override;
+ bool visit(ContractDefinition const& _node) override;
+ bool visit(StructDefinition const& _node) override;
+ bool visit(ParameterList const& _node) override;
+ bool visit(FunctionDefinition const& _node) override;
+ bool visit(VariableDeclaration const& _node) override;
+ bool visit(TypeName const& _node) override;
+ bool visit(ElementaryTypeName const& _node) override;
+ bool visit(UserDefinedTypeName const& _node) override;
+ bool visit(Mapping const& _node) override;
+ bool visit(Block const& _node) override;
+ bool visit(IfStatement const& _node) override;
+ bool visit(WhileStatement const& _node) override;
+ bool visit(ForStatement const& _node) override;
+ bool visit(Continue const& _node) override;
+ bool visit(Break const& _node) override;
+ bool visit(Return const& _node) override;
+ bool visit(Throw const& _node) override;
+ bool visit(VariableDeclarationStatement const& _node) override;
+ bool visit(ExpressionStatement const& _node) override;
+ bool visit(Assignment const& _node) override;
+ bool visit(TupleExpression const& _node) override;
+ bool visit(UnaryOperation const& _node) override;
+ bool visit(BinaryOperation const& _node) override;
+ bool visit(FunctionCall const& _node) override;
+ bool visit(NewExpression const& _node) override;
+ bool visit(MemberAccess const& _node) override;
+ bool visit(IndexAccess const& _node) override;
+ bool visit(Identifier const& _node) override;
+ bool visit(ElementaryTypeNameExpression const& _node) override;
+ bool visit(Literal const& _node) override;
+
+ void endVisit(ImportDirective const&) override;
+ void endVisit(ContractDefinition const&) override;
+ void endVisit(StructDefinition const&) override;
+ void endVisit(ParameterList const&) override;
+ void endVisit(FunctionDefinition const&) override;
+ void endVisit(VariableDeclaration const&) override;
+ void endVisit(TypeName const&) override;
+ void endVisit(ElementaryTypeName const&) override;
+ void endVisit(UserDefinedTypeName const&) override;
+ void endVisit(Mapping const&) override;
+ void endVisit(Block const&) override;
+ void endVisit(IfStatement const&) override;
+ void endVisit(WhileStatement const&) override;
+ void endVisit(ForStatement const&) override;
+ void endVisit(Continue const&) override;
+ void endVisit(Break const&) override;
+ void endVisit(Return const&) override;
+ void endVisit(Throw const&) override;
+ void endVisit(VariableDeclarationStatement const&) override;
+ void endVisit(ExpressionStatement const&) override;
+ void endVisit(Assignment const&) override;
+ void endVisit(TupleExpression const&) override;
+ void endVisit(UnaryOperation const&) override;
+ void endVisit(BinaryOperation const&) override;
+ void endVisit(FunctionCall const&) override;
+ void endVisit(NewExpression const&) override;
+ void endVisit(MemberAccess const&) override;
+ void endVisit(IndexAccess const&) override;
+ void endVisit(Identifier const&) override;
+ void endVisit(ElementaryTypeNameExpression const&) override;
+ void endVisit(Literal const&) override;
+
+private:
+ void process();
+ void addKeyValue(Json::Value& _obj, std::string const& _key, std::string const& _val);
+ void addJsonNode(std::string const& _nodeName,
+ std::initializer_list<std::pair<std::string const, std::string const>> _list,
+ bool _hasChildren);
+ std::string type(Expression const& _expression);
+ std::string type(VariableDeclaration const& _varDecl);
+ inline void goUp()
+ {
+ solAssert(!m_jsonNodePtrs.empty(), "Uneven json nodes stack. Internal error.");
+ m_jsonNodePtrs.pop();
+ }
+
+ bool processed = false;
+ Json::Value m_astJson;
+ std::stack<Json::Value*> m_jsonNodePtrs;
+ std::string m_source;
+ ASTNode const* m_ast;
+};
+
+}
+}