solidity/libyul/AsmJsonConverter.cpp

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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/>.
*/
// SPDX-License-Identifier: GPL-3.0
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/**
* @date 2019
* Converts inline assembly AST to JSON format
*/
#include <libyul/AsmJsonConverter.h>
#include <libyul/AsmData.h>
#include <libyul/Exceptions.h>
#include <libsolutil/CommonData.h>
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using namespace std;
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namespace solidity::yul
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{
Json::Value AsmJsonConverter::operator()(Block const& _node) const
{
Json::Value ret = createAstNode(_node.location, "YulBlock");
ret["statements"] = vectorOfVariantsToJson(_node.statements);
return ret;
}
Json::Value AsmJsonConverter::operator()(TypedName const& _node) const
{
yulAssert(!_node.name.empty(), "Invalid variable name.");
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Json::Value ret = createAstNode(_node.location, "YulTypedName");
ret["name"] = _node.name.str();
ret["type"] = _node.type.str();
return ret;
}
Json::Value AsmJsonConverter::operator()(Literal const& _node) const
{
Json::Value ret = createAstNode(_node.location, "YulLiteral");
switch (_node.kind)
{
case LiteralKind::Number:
yulAssert(
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util::isValidDecimal(_node.value.str()) || util::isValidHex(_node.value.str()),
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"Invalid number literal"
);
ret["kind"] = "number";
break;
case LiteralKind::Boolean:
ret["kind"] = "bool";
break;
case LiteralKind::String:
ret["kind"] = "string";
break;
}
ret["type"] = _node.type.str();
ret["value"] = _node.value.str();
return ret;
}
Json::Value AsmJsonConverter::operator()(Identifier const& _node) const
{
yulAssert(!_node.name.empty(), "Invalid identifier");
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Json::Value ret = createAstNode(_node.location, "YulIdentifier");
ret["name"] = _node.name.str();
return ret;
}
Json::Value AsmJsonConverter::operator()(Assignment const& _node) const
{
yulAssert(_node.variableNames.size() >= 1, "Invalid assignment syntax");
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Json::Value ret = createAstNode(_node.location, "YulAssignment");
for (auto const& var: _node.variableNames)
ret["variableNames"].append((*this)(var));
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ret["value"] = _node.value ? std::visit(*this, *_node.value) : Json::nullValue;
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return ret;
}
Json::Value AsmJsonConverter::operator()(FunctionCall const& _node) const
{
Json::Value ret = createAstNode(_node.location, "YulFunctionCall");
ret["functionName"] = (*this)(_node.functionName);
ret["arguments"] = vectorOfVariantsToJson(_node.arguments);
return ret;
}
Json::Value AsmJsonConverter::operator()(ExpressionStatement const& _node) const
{
Json::Value ret = createAstNode(_node.location, "YulExpressionStatement");
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ret["expression"] = std::visit(*this, _node.expression);
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return ret;
}
Json::Value AsmJsonConverter::operator()(VariableDeclaration const& _node) const
{
Json::Value ret = createAstNode(_node.location, "YulVariableDeclaration");
for (auto const& var: _node.variables)
ret["variables"].append((*this)(var));
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ret["value"] = _node.value ? std::visit(*this, *_node.value) : Json::nullValue;
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return ret;
}
Json::Value AsmJsonConverter::operator()(FunctionDefinition const& _node) const
{
yulAssert(!_node.name.empty(), "Invalid function name.");
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Json::Value ret = createAstNode(_node.location, "YulFunctionDefinition");
ret["name"] = _node.name.str();
for (auto const& var: _node.parameters)
ret["parameters"].append((*this)(var));
for (auto const& var: _node.returnVariables)
ret["returnVariables"].append((*this)(var));
ret["body"] = (*this)(_node.body);
return ret;
}
Json::Value AsmJsonConverter::operator()(If const& _node) const
{
yulAssert(_node.condition, "Invalid if condition.");
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Json::Value ret = createAstNode(_node.location, "YulIf");
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ret["condition"] = std::visit(*this, *_node.condition);
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ret["body"] = (*this)(_node.body);
return ret;
}
Json::Value AsmJsonConverter::operator()(Switch const& _node) const
{
yulAssert(_node.expression, "Invalid expression pointer.");
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Json::Value ret = createAstNode(_node.location, "YulSwitch");
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ret["expression"] = std::visit(*this, *_node.expression);
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for (auto const& var: _node.cases)
ret["cases"].append((*this)(var));
return ret;
}
Json::Value AsmJsonConverter::operator()(Case const& _node) const
{
Json::Value ret = createAstNode(_node.location, "YulCase");
ret["value"] = _node.value ? (*this)(*_node.value) : "default";
ret["body"] = (*this)(_node.body);
return ret;
}
Json::Value AsmJsonConverter::operator()(ForLoop const& _node) const
{
yulAssert(_node.condition, "Invalid for loop condition.");
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Json::Value ret = createAstNode(_node.location, "YulForLoop");
ret["pre"] = (*this)(_node.pre);
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ret["condition"] = std::visit(*this, *_node.condition);
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ret["post"] = (*this)(_node.post);
ret["body"] = (*this)(_node.body);
return ret;
}
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Json::Value AsmJsonConverter::operator()(Break const& _node) const
{
return createAstNode(_node.location, "YulBreak");
}
Json::Value AsmJsonConverter::operator()(Continue const& _node) const
{
return createAstNode(_node.location, "YulContinue");
}
Json::Value AsmJsonConverter::operator()(Leave const& _node) const
{
return createAstNode(_node.location, "YulLeave");
}
Json::Value AsmJsonConverter::createAstNode(langutil::SourceLocation const& _location, string _nodeType) const
{
Json::Value ret{Json::objectValue};
ret["nodeType"] = std::move(_nodeType);
int length = -1;
if (_location.start >= 0 && _location.end >= 0)
length = _location.end - _location.start;
ret["src"] = to_string(_location.start) + ":" + to_string(length) + ":" + m_sourceIndex;
return ret;
}
template <class T>
Json::Value AsmJsonConverter::vectorOfVariantsToJson(vector<T> const& _vec) const
{
Json::Value ret{Json::arrayValue};
for (auto const& var: _vec)
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ret.append(std::visit(*this, var));
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return ret;
}
}