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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/>.
*/
/**
* @author Christian <c@ethdev.com>
* @date 2017
* Converts a parsed assembly into its textual form.
*/
#include <libsolidity/inlineasm/AsmPrinter.h>
#include <libsolidity/inlineasm/AsmData.h>
#include <boost/algorithm/string.hpp>
#include <boost/algorithm/string/replace.hpp>
#include <boost/range/adaptor/transformed.hpp>
#include <memory>
#include <functional>
using namespace std;
using namespace dev;
using namespace dev::solidity;
using namespace dev::solidity::assembly;
//@TODO source locations
string AsmPrinter::operator()(assembly::Instruction const& _instruction)
{
return boost::to_lower_copy(instructionInfo(_instruction.instruction).name);
}
string AsmPrinter::operator()(assembly::Literal const& _literal)
{
if (_literal.isNumber)
return _literal.value;
string out;
for (char c: _literal.value)
if (c == '\\')
out += "\\\\";
else if (c == '"')
out += "\\\"";
else if (c == '\b')
out += "\\b";
else if (c == '\f')
out += "\\f";
else if (c == '\n')
out += "\\n";
else if (c == '\r')
out += "\\r";
else if (c == '\t')
out += "\\t";
else if (c == '\v')
out += "\\v";
else if (!isprint(c, locale::classic()))
{
ostringstream o;
o << std::hex << setfill('0') << setw(2) << (unsigned)(unsigned char)(c);
out += "\\x" + o.str();
}
else
out += c;
return "\"" + out + "\"";
}
string AsmPrinter::operator()(assembly::Identifier const& _identifier)
{
return _identifier.name;
}
string AsmPrinter::operator()(assembly::FunctionalInstruction const& _functionalInstruction)
{
return
(*this)(_functionalInstruction.instruction) +
"(" +
boost::algorithm::join(
_functionalInstruction.arguments | boost::adaptors::transformed(boost::apply_visitor(*this)),
", " ) +
")";
}
string AsmPrinter::operator()(assembly::Label const& _label)
{
return _label.name + ":";
}
string AsmPrinter::operator()(assembly::Assignment const& _assignment)
{
return "=: " + (*this)(_assignment.variableName);
}
string AsmPrinter::operator()(assembly::FunctionalAssignment const& _functionalAssignment)
{
return (*this)(_functionalAssignment.variableName) + " := " + boost::apply_visitor(*this, *_functionalAssignment.value);
}
string AsmPrinter::operator()(assembly::VariableDeclaration const& _variableDeclaration)
{
return "let " + _variableDeclaration.name + " := " + boost::apply_visitor(*this, *_variableDeclaration.value);
}
string AsmPrinter::operator()(Block const& _block)
{
if (_block.statements.empty())
return "{\n}";
string body = boost::algorithm::join(
_block.statements | boost::adaptors::transformed(boost::apply_visitor(*this)),
"\n"
);
boost::replace_all(body, "\n", "\n ");
return "{\n " + body + "\n}";
}
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