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0a81ace004
This patch replaces (llvm::|)Optional< with std::optional<. I'll post a separate patch to remove #include "llvm/ADT/Optional.h". This is part of an effort to migrate from llvm::Optional to std::optional: https://discourse.llvm.org/t/deprecating-llvm-optional-x-hasvalue-getvalue-getvalueor/63716
66 lines
2.3 KiB
C++
66 lines
2.3 KiB
C++
//===- DialectResourceBlobManager.cpp - Dialect Blob Management -----------===//
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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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#include "mlir/IR/DialectResourceBlobManager.h"
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#include "llvm/ADT/SmallString.h"
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#include <optional>
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using namespace mlir;
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//===----------------------------------------------------------------------===//
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// DialectResourceBlobManager
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//===---------------------------------------------------------------------===//
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auto DialectResourceBlobManager::lookup(StringRef name) -> BlobEntry * {
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llvm::sys::SmartScopedReader<true> reader(blobMapLock);
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auto it = blobMap.find(name);
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return it != blobMap.end() ? &it->second : nullptr;
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}
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void DialectResourceBlobManager::update(StringRef name,
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AsmResourceBlob &&newBlob) {
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BlobEntry *entry = lookup(name);
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assert(entry && "`update` expects an existing entry for the provided name");
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entry->setBlob(std::move(newBlob));
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}
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auto DialectResourceBlobManager::insert(StringRef name,
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std::optional<AsmResourceBlob> blob)
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-> BlobEntry & {
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llvm::sys::SmartScopedWriter<true> writer(blobMapLock);
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// Functor used to attempt insertion with a given name.
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auto tryInsertion = [&](StringRef name) -> BlobEntry * {
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auto it = blobMap.try_emplace(name, BlobEntry());
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if (it.second) {
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it.first->second.initialize(it.first->getKey(), std::move(blob));
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return &it.first->second;
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}
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return nullptr;
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};
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// Try inserting with the name provided by the user.
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if (BlobEntry *entry = tryInsertion(name))
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return *entry;
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// If an entry already exists for the user provided name, tweak the name and
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// re-attempt insertion until we find one that is unique.
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llvm::SmallString<32> nameStorage(name);
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nameStorage.push_back('_');
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size_t nameCounter = 1;
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do {
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Twine(nameCounter++).toVector(nameStorage);
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// Try inserting with the new name.
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if (BlobEntry *entry = tryInsertion(nameStorage))
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return *entry;
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nameStorage.resize(name.size() + 1);
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} while (true);
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}
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