solidity/libsolidity/ast/ASTJsonConverter.cpp

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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
*/
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#include <libsolidity/ast/ASTJsonConverter.h>
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#include <boost/algorithm/string/join.hpp>
#include <libdevcore/UTF8.h>
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#include <libsolidity/ast/AST.h>
using namespace std;
namespace dev
{
namespace solidity
{
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void ASTJsonConverter::addJsonNode(
ASTNode const& _node,
string const& _nodeName,
initializer_list<pair<string const, Json::Value const>> _attributes,
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bool _hasChildren = false
)
{
Json::Value node;
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node["id"] = reinterpret_cast<Json::UInt64>(&_node);
node["src"] = sourceLocationToString(_node.location());
node["name"] = _nodeName;
if (_attributes.size() != 0)
{
Json::Value attrs;
for (auto& e: _attributes)
attrs[e.first] = e.second;
node["attributes"] = attrs;
}
m_jsonNodePtrs.top()->append(node);
if (_hasChildren)
{
Json::Value& addedNode = (*m_jsonNodePtrs.top())[m_jsonNodePtrs.top()->size() - 1];
Json::Value children(Json::arrayValue);
addedNode["children"] = children;
m_jsonNodePtrs.push(&addedNode["children"]);
}
}
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string ASTJsonConverter::sourceLocationToString(SourceLocation const& _location) const
{
int sourceIndex{-1};
if (_location.sourceName && m_sourceIndices.count(*_location.sourceName))
sourceIndex = m_sourceIndices.at(*_location.sourceName);
int length = -1;
if (_location.start >= 0 && _location.end >= 0)
length = _location.end - _location.start;
return std::to_string(_location.start) + ":" + std::to_string(length) + ":" + std::to_string(sourceIndex);
}
ASTJsonConverter::ASTJsonConverter(
ASTNode const& _ast,
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map<string, unsigned> _sourceIndices
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): m_ast(&_ast), m_sourceIndices(_sourceIndices)
{
}
void ASTJsonConverter::print(ostream& _stream)
{
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process();
_stream << m_astJson;
}
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Json::Value const& ASTJsonConverter::json()
{
process();
return m_astJson;
}
bool ASTJsonConverter::visit(SourceUnit const&)
{
Json::Value children(Json::arrayValue);
m_astJson["name"] = "SourceUnit";
m_astJson["children"] = children;
m_jsonNodePtrs.push(&m_astJson["children"]);
return true;
}
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bool ASTJsonConverter::visit(PragmaDirective const& _node)
{
Json::Value literals(Json::arrayValue);
for (auto const& literal: _node.literals())
literals.append(literal);
addJsonNode(_node, "PragmaDirective", { make_pair("literals", literals) });
return true;
}
bool ASTJsonConverter::visit(ImportDirective const& _node)
{
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addJsonNode(_node, "ImportDirective", { make_pair("file", _node.path())});
return true;
}
bool ASTJsonConverter::visit(ContractDefinition const& _node)
{
Json::Value linearizedBaseContracts(Json::arrayValue);
for (auto const& baseContract: _node.annotation().linearizedBaseContracts)
linearizedBaseContracts.append(reinterpret_cast<Json::UInt64>(baseContract));
addJsonNode(_node, "ContractDefinition", {
make_pair("name", _node.name()),
make_pair("isLibrary", _node.isLibrary()),
make_pair("fullyImplemented", _node.annotation().isFullyImplemented),
make_pair("linearizedBaseContracts", linearizedBaseContracts),
}, true);
return true;
}
bool ASTJsonConverter::visit(InheritanceSpecifier const& _node)
{
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addJsonNode(_node, "InheritanceSpecifier", {}, true);
return true;
}
bool ASTJsonConverter::visit(UsingForDirective const& _node)
{
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addJsonNode(_node, "UsingForDirective", {}, true);
return true;
}
bool ASTJsonConverter::visit(StructDefinition const& _node)
{
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addJsonNode(_node, "StructDefinition", { make_pair("name", _node.name()) }, true);
return true;
}
bool ASTJsonConverter::visit(EnumDefinition const& _node)
{
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addJsonNode(_node, "EnumDefinition", { make_pair("name", _node.name()) }, true);
return true;
}
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bool ASTJsonConverter::visit(EnumValue const& _node)
{
addJsonNode(_node, "EnumValue", { make_pair("name", _node.name()) });
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return true;
}
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bool ASTJsonConverter::visit(ParameterList const& _node)
{
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addJsonNode(_node, "ParameterList", {}, true);
return true;
}
bool ASTJsonConverter::visit(FunctionDefinition const& _node)
{
addJsonNode(_node, "FunctionDefinition", {
make_pair("name", _node.name()),
make_pair("public", _node.isPublic()),
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make_pair("constant", _node.isDeclaredConst()),
make_pair("payable", _node.isPayable())
}, true);
return true;
}
bool ASTJsonConverter::visit(VariableDeclaration const& _node)
{
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addJsonNode(_node, "VariableDeclaration", {
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make_pair("name", _node.name()),
make_pair("type", type(_node))
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}, true);
return true;
}
bool ASTJsonConverter::visit(ModifierDefinition const& _node)
{
addJsonNode(_node, "ModifierDefinition", { make_pair("name", _node.name()) }, true);
return true;
}
bool ASTJsonConverter::visit(ModifierInvocation const& _node)
{
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addJsonNode(_node, "ModifierInvocation", {}, true);
return true;
}
bool ASTJsonConverter::visit(TypeName const&)
{
return true;
}
bool ASTJsonConverter::visit(EventDefinition const& _node)
{
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addJsonNode(_node, "EventDefinition", { make_pair("name", _node.name()) }, true);
return true;
}
bool ASTJsonConverter::visit(ElementaryTypeName const& _node)
{
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addJsonNode(_node, "ElementaryTypeName", { make_pair("name", _node.typeName().toString()) });
return true;
}
bool ASTJsonConverter::visit(UserDefinedTypeName const& _node)
{
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addJsonNode(_node, "UserDefinedTypeName", {
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make_pair("name", boost::algorithm::join(_node.namePath(), "."))
});
return true;
}
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bool ASTJsonConverter::visit(FunctionTypeName const& _node)
{
addJsonNode(_node, "FunctionTypeName", {
make_pair("payable", _node.isPayable()),
make_pair("constant", _node.isDeclaredConst())
});
return true;
}
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bool ASTJsonConverter::visit(Mapping const& _node)
{
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addJsonNode(_node, "Mapping", {}, true);
return true;
}
bool ASTJsonConverter::visit(ArrayTypeName const& _node)
{
addJsonNode(_node, "ArrayTypeName", {}, true);
return true;
}
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bool ASTJsonConverter::visit(InlineAssembly const& _node)
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{
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addJsonNode(_node, "InlineAssembly", {}, true);
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return true;
}
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bool ASTJsonConverter::visit(Block const& _node)
{
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addJsonNode(_node, "Block", {}, true);
return true;
}
bool ASTJsonConverter::visit(PlaceholderStatement const& _node)
{
addJsonNode(_node, "PlaceholderStatement", {});
return true;
}
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bool ASTJsonConverter::visit(IfStatement const& _node)
{
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addJsonNode(_node, "IfStatement", {}, true);
return true;
}
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bool ASTJsonConverter::visit(WhileStatement const& _node)
{
addJsonNode(
_node,
_node.isDoWhile() ? "DoWhileStatement" : "WhileStatement",
{},
true);
return true;
}
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bool ASTJsonConverter::visit(ForStatement const& _node)
{
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addJsonNode(_node, "ForStatement", {}, true);
return true;
}
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bool ASTJsonConverter::visit(Continue const& _node)
{
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addJsonNode(_node, "Continue", {});
return true;
}
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bool ASTJsonConverter::visit(Break const& _node)
{
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addJsonNode(_node, "Break", {});
return true;
}
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bool ASTJsonConverter::visit(Return const& _node)
{
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addJsonNode(_node, "Return", {}, true);;
return true;
}
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bool ASTJsonConverter::visit(Throw const& _node)
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{
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addJsonNode(_node, "Throw", {}, true);;
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return true;
}
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bool ASTJsonConverter::visit(VariableDeclarationStatement const& _node)
{
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addJsonNode(_node, "VariableDefinitionStatement", {}, true);
return true;
}
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bool ASTJsonConverter::visit(ExpressionStatement const& _node)
{
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addJsonNode(_node, "ExpressionStatement", {}, true);
return true;
}
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bool ASTJsonConverter::visit(Conditional const& _node)
{
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addJsonNode(_node, "Conditional", {}, true);
return true;
}
bool ASTJsonConverter::visit(Assignment const& _node)
{
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addJsonNode(_node, "Assignment",
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{ make_pair("operator", Token::toString(_node.assignmentOperator())),
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make_pair("type", type(_node)) },
true);
return true;
}
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bool ASTJsonConverter::visit(TupleExpression const& _node)
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{
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addJsonNode(_node, "TupleExpression",{}, true);
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return true;
}
bool ASTJsonConverter::visit(UnaryOperation const& _node)
{
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addJsonNode(_node, "UnaryOperation",
{ make_pair("prefix", _node.isPrefixOperation()),
make_pair("operator", Token::toString(_node.getOperator())),
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make_pair("type", type(_node)) },
true);
return true;
}
bool ASTJsonConverter::visit(BinaryOperation const& _node)
{
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addJsonNode(_node, "BinaryOperation", {
make_pair("operator", Token::toString(_node.getOperator())),
make_pair("type", type(_node))
}, true);
return true;
}
bool ASTJsonConverter::visit(FunctionCall const& _node)
{
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addJsonNode(_node, "FunctionCall", {
make_pair("type_conversion", _node.annotation().isTypeConversion),
make_pair("type", type(_node))
}, true);
return true;
}
bool ASTJsonConverter::visit(NewExpression const& _node)
{
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addJsonNode(_node, "NewExpression", { make_pair("type", type(_node)) }, true);
return true;
}
bool ASTJsonConverter::visit(MemberAccess const& _node)
{
addJsonNode(_node, "MemberAccess", {
make_pair("member_name", _node.memberName()),
make_pair("type", type(_node))
}, true);
return true;
}
bool ASTJsonConverter::visit(IndexAccess const& _node)
{
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addJsonNode(_node, "IndexAccess", { make_pair("type", type(_node)) }, true);
return true;
}
bool ASTJsonConverter::visit(Identifier const& _node)
{
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addJsonNode(_node, "Identifier",
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{ make_pair("value", _node.name()), make_pair("type", type(_node)) });
return true;
}
bool ASTJsonConverter::visit(ElementaryTypeNameExpression const& _node)
{
addJsonNode(_node, "ElementaryTypenameExpression", {
make_pair("value", _node.typeName().toString()),
make_pair("type", type(_node))
});
return true;
}
bool ASTJsonConverter::visit(Literal const& _node)
{
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char const* tokenString = Token::toString(_node.token());
size_t invalidPos = 0;
Json::Value value{_node.value()};
if (!dev::validate(_node.value(), invalidPos))
value = Json::nullValue;
Token::Value subdenomination = Token::Value(_node.subDenomination());
addJsonNode(_node, "Literal", {
make_pair("token", tokenString ? tokenString : Json::Value()),
make_pair("value", value),
make_pair("hexvalue", toHex(_node.value())),
make_pair(
"subdenomination",
subdenomination == Token::Illegal ?
Json::nullValue :
Json::Value{Token::toString(subdenomination)}
),
make_pair("type", type(_node))
});
return true;
}
void ASTJsonConverter::endVisit(SourceUnit const&)
{
goUp();
}
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void ASTJsonConverter::endVisit(PragmaDirective const&)
{
}
void ASTJsonConverter::endVisit(ImportDirective const&)
{
}
void ASTJsonConverter::endVisit(ContractDefinition const&)
{
goUp();
}
void ASTJsonConverter::endVisit(InheritanceSpecifier const&)
{
goUp();
}
void ASTJsonConverter::endVisit(UsingForDirective const&)
{
goUp();
}
void ASTJsonConverter::endVisit(StructDefinition const&)
{
goUp();
}
void ASTJsonConverter::endVisit(EnumDefinition const&)
{
goUp();
}
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void ASTJsonConverter::endVisit(EnumValue const&)
{
}
void ASTJsonConverter::endVisit(ParameterList const&)
{
goUp();
}
void ASTJsonConverter::endVisit(FunctionDefinition const&)
{
goUp();
}
void ASTJsonConverter::endVisit(VariableDeclaration const&)
{
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goUp();
}
void ASTJsonConverter::endVisit(ModifierDefinition const&)
{
goUp();
}
void ASTJsonConverter::endVisit(ModifierInvocation const&)
{
goUp();
}
void ASTJsonConverter::endVisit(EventDefinition const&)
{
goUp();
}
void ASTJsonConverter::endVisit(TypeName const&)
{
}
void ASTJsonConverter::endVisit(ElementaryTypeName const&)
{
}
void ASTJsonConverter::endVisit(UserDefinedTypeName const&)
{
}
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void ASTJsonConverter::endVisit(FunctionTypeName const&)
{
goUp();
}
void ASTJsonConverter::endVisit(Mapping const&)
{
goUp();
}
void ASTJsonConverter::endVisit(ArrayTypeName const&)
{
goUp();
}
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void ASTJsonConverter::endVisit(InlineAssembly const&)
{
goUp();
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}
void ASTJsonConverter::endVisit(Block const&)
{
goUp();
}
void ASTJsonConverter::endVisit(PlaceholderStatement const&)
{
}
void ASTJsonConverter::endVisit(IfStatement const&)
{
goUp();
}
void ASTJsonConverter::endVisit(WhileStatement const&)
{
goUp();
}
void ASTJsonConverter::endVisit(ForStatement const&)
{
goUp();
}
void ASTJsonConverter::endVisit(Continue const&)
{
}
void ASTJsonConverter::endVisit(Break const&)
{
}
void ASTJsonConverter::endVisit(Return const&)
{
goUp();
}
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void ASTJsonConverter::endVisit(Throw const&)
{
goUp();
}
void ASTJsonConverter::endVisit(VariableDeclarationStatement const&)
{
goUp();
}
void ASTJsonConverter::endVisit(ExpressionStatement const&)
{
goUp();
}
void ASTJsonConverter::endVisit(Conditional const&)
{
goUp();
}
void ASTJsonConverter::endVisit(Assignment const&)
{
goUp();
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}
void ASTJsonConverter::endVisit(TupleExpression const&)
{
goUp();
}
void ASTJsonConverter::endVisit(UnaryOperation const&)
{
goUp();
}
void ASTJsonConverter::endVisit(BinaryOperation const&)
{
goUp();
}
void ASTJsonConverter::endVisit(FunctionCall const&)
{
goUp();
}
void ASTJsonConverter::endVisit(NewExpression const&)
{
goUp();
}
void ASTJsonConverter::endVisit(MemberAccess const&)
{
goUp();
}
void ASTJsonConverter::endVisit(IndexAccess const&)
{
goUp();
}
void ASTJsonConverter::endVisit(Identifier const&)
{
}
void ASTJsonConverter::endVisit(ElementaryTypeNameExpression const&)
{
}
void ASTJsonConverter::endVisit(Literal const&)
{
}
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void ASTJsonConverter::process()
{
if (!processed)
m_ast->accept(*this);
processed = true;
}
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string ASTJsonConverter::type(Expression const& _expression)
{
return _expression.annotation().type ? _expression.annotation().type->toString() : "Unknown";
}
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string ASTJsonConverter::type(VariableDeclaration const& _varDecl)
{
return _varDecl.annotation().type ? _varDecl.annotation().type->toString() : "Unknown";
}
}
}