2946cd7010
to reflect the new license. We understand that people may be surprised that we're moving the header entirely to discuss the new license. We checked this carefully with the Foundation's lawyer and we believe this is the correct approach. Essentially, all code in the project is now made available by the LLVM project under our new license, so you will see that the license headers include that license only. Some of our contributors have contributed code under our old license, and accordingly, we have retained a copy of our old license notice in the top-level files in each project and repository. llvm-svn: 351636
102 lines
3.4 KiB
C++
102 lines
3.4 KiB
C++
//==-- proto_to_cxx.cpp - Protobuf-C++ conversion --------------------------==//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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//
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// Implements functions for converting between protobufs and C++.
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//
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//===----------------------------------------------------------------------===//
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#include "proto_to_cxx.h"
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#include "cxx_proto.pb.h"
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#include <ostream>
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#include <sstream>
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namespace clang_fuzzer {
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// Forward decls.
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std::ostream &operator<<(std::ostream &os, const BinaryOp &x);
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std::ostream &operator<<(std::ostream &os, const StatementSeq &x);
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// Proto to C++.
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std::ostream &operator<<(std::ostream &os, const Const &x) {
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return os << "(" << x.val() << ")";
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}
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std::ostream &operator<<(std::ostream &os, const VarRef &x) {
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return os << "a[" << (static_cast<uint32_t>(x.varnum()) % 100) << "]";
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}
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std::ostream &operator<<(std::ostream &os, const Lvalue &x) {
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return os << x.varref();
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}
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std::ostream &operator<<(std::ostream &os, const Rvalue &x) {
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if (x.has_varref()) return os << x.varref();
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if (x.has_cons()) return os << x.cons();
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if (x.has_binop()) return os << x.binop();
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return os << "1";
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}
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std::ostream &operator<<(std::ostream &os, const BinaryOp &x) {
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os << "(" << x.left();
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switch (x.op()) {
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case BinaryOp::PLUS: os << "+"; break;
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case BinaryOp::MINUS: os << "-"; break;
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case BinaryOp::MUL: os << "*"; break;
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case BinaryOp::DIV: os << "/"; break;
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case BinaryOp::MOD: os << "%"; break;
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case BinaryOp::XOR: os << "^"; break;
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case BinaryOp::AND: os << "&"; break;
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case BinaryOp::OR: os << "|"; break;
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case BinaryOp::EQ: os << "=="; break;
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case BinaryOp::NE: os << "!="; break;
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case BinaryOp::LE: os << "<="; break;
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case BinaryOp::GE: os << ">="; break;
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case BinaryOp::LT: os << "<"; break;
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case BinaryOp::GT: os << ">"; break;
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}
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return os << x.right() << ")";
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}
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std::ostream &operator<<(std::ostream &os, const AssignmentStatement &x) {
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return os << x.lvalue() << "=" << x.rvalue() << ";\n";
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}
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std::ostream &operator<<(std::ostream &os, const IfElse &x) {
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return os << "if (" << x.cond() << "){\n"
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<< x.if_body() << "} else { \n"
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<< x.else_body() << "}\n";
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}
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std::ostream &operator<<(std::ostream &os, const While &x) {
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return os << "while (" << x.cond() << "){\n" << x.body() << "}\n";
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}
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std::ostream &operator<<(std::ostream &os, const Statement &x) {
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if (x.has_assignment()) return os << x.assignment();
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if (x.has_ifelse()) return os << x.ifelse();
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if (x.has_while_loop()) return os << x.while_loop();
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return os << "(void)0;\n";
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}
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std::ostream &operator<<(std::ostream &os, const StatementSeq &x) {
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for (auto &st : x.statements()) os << st;
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return os;
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}
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std::ostream &operator<<(std::ostream &os, const Function &x) {
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return os << "void foo(int *a) {\n" << x.statements() << "}\n";
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}
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// ---------------------------------
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std::string FunctionToString(const Function &input) {
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std::ostringstream os;
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os << input;
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return os.str();
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}
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std::string ProtoToCxx(const uint8_t *data, size_t size) {
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Function message;
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if (!message.ParsePartialFromArray(data, size))
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return "#error invalid proto\n";
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return FunctionToString(message);
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}
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} // namespace clang_fuzzer
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