mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-24 22:02:23 +01:00
Jon Ross-Perkins
c8b30d3eec
This is mirroring the structure of codegen/codegen.h, lower/lower.h, and check/check.h. I recently did lex/lex.h, so parse/parse.h is the last. Now, the directory's main API file is eponymous with the directory. I could've used a friend function to avoid making the Tree constructor public, but in other places we make less use of `friend`, just leaving things public. This felt more consistent, and simple because it only affects the constructor.
48 lines
1.7 KiB
C++
48 lines
1.7 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 <cstddef>
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#include <cstring>
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#include "llvm/ADT/StringRef.h"
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#include "toolchain/base/value_store.h"
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#include "toolchain/diagnostics/null_diagnostics.h"
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#include "toolchain/lex/lex.h"
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#include "toolchain/parse/parse.h"
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namespace Carbon::Testing {
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// NOLINTNEXTLINE: Match the documented fuzzer entry point declaration style.
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extern "C" int LLVMFuzzerTestOneInput(const unsigned char* data,
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std::size_t size) {
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// Ignore large inputs.
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// TODO: See tokenized_buffer_fuzzer.cpp.
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if (size > 100000) {
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return 0;
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}
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static constexpr llvm::StringLiteral TestFileName = "test.carbon";
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llvm::vfs::InMemoryFileSystem fs;
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llvm::StringRef data_ref(reinterpret_cast<const char*>(data), size);
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CARBON_CHECK(fs.addFile(
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TestFileName, /*ModificationTime=*/0,
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llvm::MemoryBuffer::getMemBuffer(data_ref, /*BufferName=*/TestFileName,
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/*RequiresNullTerminator=*/false)));
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auto source =
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SourceBuffer::CreateFromFile(fs, TestFileName, NullDiagnosticConsumer());
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// Lex the input.
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SharedValueStores value_stores;
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auto tokens = Lex::Lex(value_stores, *source, NullDiagnosticConsumer());
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if (tokens.has_errors()) {
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return 0;
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}
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// Now parse it into a tree. Note that parsing will (when asserts are enabled)
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// walk the entire tree to verify it so we don't have to do that here.
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Parse::Parse(tokens, NullDiagnosticConsumer(), /*vlog_stream=*/nullptr);
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return 0;
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}
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} // namespace Carbon::Testing
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