45 lines
1.7 KiB
C++
45 lines
1.7 KiB
C++
//===--- CloexecOpenCheck.cpp - clang-tidy---------------------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "CloexecOpenCheck.h"
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#include "clang/AST/ASTContext.h"
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#include "clang/ASTMatchers/ASTMatchFinder.h"
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using namespace clang::ast_matchers;
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namespace clang {
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namespace tidy {
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namespace android {
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void CloexecOpenCheck::registerMatchers(MatchFinder *Finder) {
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auto CharPointerType = hasType(pointerType(pointee(isAnyCharacter())));
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registerMatchersImpl(Finder,
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functionDecl(isExternC(), returns(isInteger()),
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hasAnyName("open", "open64"),
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hasParameter(0, CharPointerType),
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hasParameter(1, hasType(isInteger()))));
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registerMatchersImpl(Finder,
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functionDecl(isExternC(), returns(isInteger()),
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hasName("openat"),
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hasParameter(0, hasType(isInteger())),
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hasParameter(1, CharPointerType),
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hasParameter(2, hasType(isInteger()))));
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}
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void CloexecOpenCheck::check(const MatchFinder::MatchResult &Result) {
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const auto *FD = Result.Nodes.getNodeAs<FunctionDecl>(FuncDeclBindingStr);
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assert(FD->param_size() > 1);
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int ArgPos = (FD->param_size() > 2) ? 2 : 1;
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insertMacroFlag(Result, /*MarcoFlag=*/"O_CLOEXEC", ArgPos);
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}
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} // namespace android
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} // namespace tidy
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} // namespace clang
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