mirror of
https://github.com/carbon-language/carbon-lang.git
synced 2026-09-24 22:02:23 +01:00
Jon Ross-Perkins
ae16332a11
The current behavior hits UBSAN and ASAN issues. Note, `RequiresNullTerminator` is already set to `false` in `source_buffer.cpp`; setting it in `compile_helper.cpp` is making things more consistent. The related logic is an [assert fail](https://github.com/llvm/llvm-project/blob/main/llvm/lib/Support/MemoryBuffer.cpp#L52). This was fuzzer-discovered.
63 lines
2.3 KiB
C++
63 lines
2.3 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 "toolchain/testing/compile_helper.h"
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#include <string>
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#include <utility>
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namespace Carbon::Testing {
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auto CompileHelper::GetTokenizedBuffer(llvm::StringRef text,
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Diagnostics::Consumer* consumer)
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-> Lex::TokenizedBuffer& {
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auto& source = GetSourceBuffer(text);
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value_store_storage_.emplace_front();
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token_storage_.push_front(Lex::Lex(value_store_storage_.front(), source,
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consumer ? *consumer : consumer_));
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return token_storage_.front();
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}
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auto CompileHelper::GetTokenizedBufferWithSharedValueStore(
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llvm::StringRef text, Diagnostics::Consumer* consumer)
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-> std::pair<Lex::TokenizedBuffer&, SharedValueStores&> {
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auto& tokens = GetTokenizedBuffer(text, consumer);
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return {tokens, value_store_storage_.front()};
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}
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auto CompileHelper::GetTree(llvm::StringRef text) -> Parse::Tree& {
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auto& tokens = GetTokenizedBuffer(text);
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tree_storage_.push_front(Parse::Parse(tokens, consumer_,
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/*vlog_stream=*/nullptr));
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return tree_storage_.front();
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}
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auto CompileHelper::GetTreeAndSubtrees(llvm::StringRef text)
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-> Parse::TreeAndSubtrees& {
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auto& tree = GetTree(text);
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tree_and_subtrees_storage_.push_front(
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Parse::TreeAndSubtrees(token_storage_.front(), tree));
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return tree_and_subtrees_storage_.front();
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}
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auto CompileHelper::GetTokenizedBufferWithTreeAndSubtrees(llvm::StringRef text)
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-> std::pair<Lex::TokenizedBuffer&, Parse::TreeAndSubtrees&> {
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auto& tree_and_subtrees = GetTreeAndSubtrees(text);
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return {token_storage_.front(), tree_and_subtrees};
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}
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auto CompileHelper::GetSourceBuffer(llvm::StringRef text) -> SourceBuffer& {
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std::string filename = llvm::formatv("test{0}.carbon", ++file_index_);
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CARBON_CHECK(
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fs_.addFile(filename, /*ModificationTime=*/0,
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llvm::MemoryBuffer::getMemBuffer(
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text, filename, /*RequiresNullTerminator=*/false)));
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source_storage_.push_front(
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std::move(*SourceBuffer::MakeFromFile(fs_, filename, consumer_)));
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return source_storage_.front();
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}
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} // namespace Carbon::Testing
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