mirror of
https://github.com/ethereum/solidity
synced 2023-10-03 13:03:40 +00:00
148 lines
4.1 KiB
C++
148 lines
4.1 KiB
C++
/*
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This file is part of solidity.
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solidity is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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solidity is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with solidity. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* @author Christian <c@ethdev.com>
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* @date 2017
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* Converts a parsed assembly into its textual form.
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*/
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#include <libsolidity/inlineasm/AsmPrinter.h>
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#include <libsolidity/inlineasm/AsmData.h>
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#include <boost/algorithm/string.hpp>
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#include <boost/algorithm/string/replace.hpp>
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#include <boost/range/adaptor/transformed.hpp>
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#include <memory>
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#include <functional>
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using namespace std;
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using namespace dev;
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using namespace dev::solidity;
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using namespace dev::solidity::assembly;
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//@TODO source locations
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string AsmPrinter::operator()(assembly::Instruction const& _instruction)
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{
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return boost::to_lower_copy(instructionInfo(_instruction.instruction).name);
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}
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string AsmPrinter::operator()(assembly::Literal const& _literal)
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{
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if (_literal.isNumber)
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return _literal.value;
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string out;
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for (char c: _literal.value)
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if (c == '\\')
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out += "\\\\";
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else if (c == '"')
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out += "\\\"";
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else if (c == '\b')
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out += "\\b";
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else if (c == '\f')
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out += "\\f";
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else if (c == '\n')
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out += "\\n";
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else if (c == '\r')
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out += "\\r";
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else if (c == '\t')
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out += "\\t";
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else if (c == '\v')
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out += "\\v";
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else if (!isprint(c, locale::classic()))
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{
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ostringstream o;
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o << std::hex << setfill('0') << setw(2) << (unsigned)(unsigned char)(c);
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out += "\\x" + o.str();
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}
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else
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out += c;
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return "\"" + out + "\"";
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}
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string AsmPrinter::operator()(assembly::Identifier const& _identifier)
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{
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return _identifier.name;
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}
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string AsmPrinter::operator()(assembly::FunctionalInstruction const& _functionalInstruction)
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{
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return
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(*this)(_functionalInstruction.instruction) +
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"(" +
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boost::algorithm::join(
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_functionalInstruction.arguments | boost::adaptors::transformed(boost::apply_visitor(*this)),
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", " ) +
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")";
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}
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string AsmPrinter::operator()(assembly::Label const& _label)
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{
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return _label.name + (
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!_label.stackInfo.empty() ?
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"[" + boost::algorithm::join(_label.stackInfo, ", ") + "]" :
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string()
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) + ":";
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}
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string AsmPrinter::operator()(assembly::Assignment const& _assignment)
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{
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return "=: " + (*this)(_assignment.variableName);
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}
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string AsmPrinter::operator()(assembly::FunctionalAssignment const& _functionalAssignment)
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{
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return (*this)(_functionalAssignment.variableName) + " := " + boost::apply_visitor(*this, *_functionalAssignment.value);
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}
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string AsmPrinter::operator()(assembly::VariableDeclaration const& _variableDeclaration)
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{
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return "let " + _variableDeclaration.name + " := " + boost::apply_visitor(*this, *_variableDeclaration.value);
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}
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string AsmPrinter::operator()(assembly::FunctionDefinition const& _functionDefinition)
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{
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string out = "function " + _functionDefinition.name + "(" + boost::algorithm::join(_functionDefinition.arguments, ", ") + ")";
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if (!_functionDefinition.returns.empty())
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out += " -> (" + boost::algorithm::join(_functionDefinition.returns, ", ") + ")";
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return out + "\n" + (*this)(_functionDefinition.body);
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}
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string AsmPrinter::operator()(assembly::FunctionCall const& _functionCall)
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{
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return
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(*this)(_functionCall.functionName) + "(" +
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boost::algorithm::join(
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_functionCall.arguments | boost::adaptors::transformed(boost::apply_visitor(*this)),
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", " ) +
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")";
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}
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string AsmPrinter::operator()(Block const& _block)
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{
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if (_block.statements.empty())
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return "{\n}";
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string body = boost::algorithm::join(
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_block.statements | boost::adaptors::transformed(boost::apply_visitor(*this)),
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"\n"
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);
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boost::replace_all(body, "\n", "\n ");
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return "{\n " + body + "\n}";
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}
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