72 lines
2.5 KiB
C++
72 lines
2.5 KiB
C++
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//===--- FileExtensionsUtils.cpp - clang-tidy -------------------*- C++ -*-===//
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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 "FileExtensionsUtils.h"
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#include "clang/Basic/CharInfo.h"
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#include "llvm/Support/Path.h"
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#include <optional>
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namespace clang::tidy::utils {
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bool isExpansionLocInHeaderFile(SourceLocation Loc, const SourceManager &SM,
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const FileExtensionsSet &HeaderFileExtensions) {
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SourceLocation ExpansionLoc = SM.getExpansionLoc(Loc);
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return isFileExtension(SM.getFilename(ExpansionLoc), HeaderFileExtensions);
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}
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bool isPresumedLocInHeaderFile(SourceLocation Loc, SourceManager &SM,
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const FileExtensionsSet &HeaderFileExtensions) {
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PresumedLoc PresumedLocation = SM.getPresumedLoc(Loc);
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return isFileExtension(PresumedLocation.getFilename(), HeaderFileExtensions);
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}
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bool isSpellingLocInHeaderFile(SourceLocation Loc, SourceManager &SM,
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const FileExtensionsSet &HeaderFileExtensions) {
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SourceLocation SpellingLoc = SM.getSpellingLoc(Loc);
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return isFileExtension(SM.getFilename(SpellingLoc), HeaderFileExtensions);
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}
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bool parseFileExtensions(StringRef AllFileExtensions,
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FileExtensionsSet &FileExtensions,
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StringRef Delimiters) {
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SmallVector<StringRef, 5> Suffixes;
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for (char Delimiter : Delimiters) {
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if (AllFileExtensions.contains(Delimiter)) {
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AllFileExtensions.split(Suffixes, Delimiter);
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break;
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}
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}
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FileExtensions.clear();
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for (StringRef Suffix : Suffixes) {
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StringRef Extension = Suffix.trim();
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if (!llvm::all_of(Extension, isAlphanumeric))
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return false;
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FileExtensions.insert(Extension);
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}
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return true;
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}
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std::optional<StringRef>
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getFileExtension(StringRef FileName, const FileExtensionsSet &FileExtensions) {
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StringRef Extension = llvm::sys::path::extension(FileName);
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if (Extension.empty())
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return std::nullopt;
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// Skip "." prefix.
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if (!FileExtensions.count(Extension.substr(1)))
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return std::nullopt;
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return Extension;
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}
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bool isFileExtension(StringRef FileName,
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const FileExtensionsSet &FileExtensions) {
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return getFileExtension(FileName, FileExtensions).has_value();
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}
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} // namespace clang::tidy::utils
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