forked from OSchip/llvm-project
61 lines
2.2 KiB
C++
61 lines
2.2 KiB
C++
//===--- StaticObjectExceptionCheck.cpp - clang-tidy-----------------------===//
|
|
//
|
|
// The LLVM Compiler Infrastructure
|
|
//
|
|
// This file is distributed under the University of Illinois Open Source
|
|
// License. See LICENSE.TXT for details.
|
|
//
|
|
//===----------------------------------------------------------------------===//
|
|
|
|
#include "StaticObjectExceptionCheck.h"
|
|
#include "../utils/Matchers.h"
|
|
#include "clang/AST/ASTContext.h"
|
|
#include "clang/ASTMatchers/ASTMatchFinder.h"
|
|
|
|
using namespace clang::ast_matchers;
|
|
|
|
namespace clang {
|
|
namespace tidy {
|
|
namespace cert {
|
|
|
|
void StaticObjectExceptionCheck::registerMatchers(MatchFinder *Finder) {
|
|
if ((!getLangOpts().CPlusPlus) || (!getLangOpts().CXXExceptions))
|
|
return;
|
|
|
|
// Match any static or thread_local variable declaration that has an
|
|
// initializer that can throw.
|
|
Finder->addMatcher(
|
|
varDecl(anyOf(hasThreadStorageDuration(), hasStaticStorageDuration()),
|
|
unless(hasAncestor(functionDecl())),
|
|
anyOf(hasDescendant(cxxConstructExpr(hasDeclaration(
|
|
cxxConstructorDecl(unless(isNoThrow())).bind("func")))),
|
|
hasDescendant(cxxNewExpr(hasDeclaration(
|
|
functionDecl(unless(isNoThrow())).bind("func")))),
|
|
hasDescendant(callExpr(hasDeclaration(
|
|
functionDecl(unless(isNoThrow())).bind("func"))))))
|
|
.bind("var"),
|
|
this);
|
|
}
|
|
|
|
void StaticObjectExceptionCheck::check(const MatchFinder::MatchResult &Result) {
|
|
const auto *VD = Result.Nodes.getNodeAs<VarDecl>("var");
|
|
const auto *Func = Result.Nodes.getNodeAs<FunctionDecl>("func");
|
|
|
|
diag(VD->getLocation(),
|
|
"initialization of %0 with %select{static|thread_local}1 storage "
|
|
"duration may throw an exception that cannot be caught")
|
|
<< VD << (VD->getStorageDuration() == SD_Static ? 0 : 1);
|
|
|
|
SourceLocation FuncLocation = Func->getLocation();
|
|
if (FuncLocation.isValid()) {
|
|
diag(FuncLocation,
|
|
"possibly throwing %select{constructor|function}0 declared here",
|
|
DiagnosticIDs::Note)
|
|
<< (isa<CXXConstructorDecl>(Func) ? 0 : 1);
|
|
}
|
|
}
|
|
|
|
} // namespace cert
|
|
} // namespace tidy
|
|
} // namespace clang
|