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44 lines
1.5 KiB
C++
44 lines
1.5 KiB
C++
// Part of the Carbon Language project, under the Apache License v2.0 with LLVM
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// Exceptions. See /LICENSE for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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#include <google/protobuf/text_format.h>
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#include <libprotobuf_mutator/src/libfuzzer/libfuzzer_macro.h>
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#include "common/fuzzing/carbon.pb.h"
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#include "executable_semantics/fuzzing/fuzzer_util.h"
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#include "executable_semantics/interpreter/exec_program.h"
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#include "executable_semantics/syntax/parse.h"
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#include "executable_semantics/syntax/prelude.h"
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#include "llvm/Support/raw_ostream.h"
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namespace Carbon {
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// Parses and executes a fuzzer-generated program.
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void ParseAndExecute(const Fuzzing::CompilationUnit& compilation_unit) {
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const std::string source = ProtoToCarbonWithMain(compilation_unit);
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Arena arena;
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ErrorOr<AST> ast = ParseFromString(&arena, "Fuzzer.carbon", source,
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/*parser_debug=*/false);
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if (!ast.ok()) {
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llvm::errs() << "Parsing failed: " << ast.error().message() << "\n";
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return;
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}
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AddPrelude("executable_semantics/data/prelude.carbon", &arena,
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&ast->declarations);
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const ErrorOr<int> result =
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ExecProgram(&arena, *ast, /*trace_stream=*/nullptr);
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if (!result.ok()) {
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llvm::errs() << "Execution failed: " << result.error().message() << "\n";
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return;
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}
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llvm::outs() << "Executed OK: " << *result << "\n";
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}
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} // namespace Carbon
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DEFINE_TEXT_PROTO_FUZZER(const Carbon::Fuzzing::Carbon& input) {
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Carbon::ParseAndExecute(input.compilation_unit());
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}
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