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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 17:32:43 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 17:32:43 +0000
commit6bf0a5cb5034a7e684dcc3500e841785237ce2dd (patch)
treea68f146d7fa01f0134297619fbe7e33db084e0aa /build/clang-plugin/NoAddRefReleaseOnReturnChecker.cpp
parentInitial commit. (diff)
downloadthunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.tar.xz
thunderbird-6bf0a5cb5034a7e684dcc3500e841785237ce2dd.zip
Adding upstream version 1:115.7.0.upstream/1%115.7.0upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'build/clang-plugin/NoAddRefReleaseOnReturnChecker.cpp')
-rw-r--r--build/clang-plugin/NoAddRefReleaseOnReturnChecker.cpp32
1 files changed, 32 insertions, 0 deletions
diff --git a/build/clang-plugin/NoAddRefReleaseOnReturnChecker.cpp b/build/clang-plugin/NoAddRefReleaseOnReturnChecker.cpp
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index 0000000000..e1c38fa6b2
--- /dev/null
+++ b/build/clang-plugin/NoAddRefReleaseOnReturnChecker.cpp
@@ -0,0 +1,32 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "NoAddRefReleaseOnReturnChecker.h"
+#include "CustomMatchers.h"
+
+void NoAddRefReleaseOnReturnChecker::registerMatchers(MatchFinder *AstMatcher) {
+ // Look for all of the calls to AddRef() or Release()
+ AstMatcher->addMatcher(
+ memberExpr(isAddRefOrRelease(), hasParent(callExpr())).bind("member"),
+ this);
+}
+
+void NoAddRefReleaseOnReturnChecker::check(
+ const MatchFinder::MatchResult &Result) {
+ const MemberExpr *Member = Result.Nodes.getNodeAs<MemberExpr>("member");
+ const Expr *Base = IgnoreTrivials(Member->getBase());
+
+ // Check if the call to AddRef() or Release() was made on the result of a call
+ // to a MOZ_NO_ADDREF_RELEASE_ON_RETURN function or method.
+ if (auto *Call = dyn_cast<CallExpr>(Base)) {
+ if (auto *Callee = Call->getDirectCallee()) {
+ if (hasCustomAttribute<moz_no_addref_release_on_return>(Callee)) {
+ diag(Call->getBeginLoc(),
+ "%1 must not be called on the return value of '%0' which is marked with MOZ_NO_ADDREF_RELEASE_ON_RETURN",
+ DiagnosticIDs::Error)
+ << Callee->getQualifiedNameAsString() << dyn_cast<CXXMethodDecl>(Member->getMemberDecl());
+ }
+ }
+ }
+}