Source code

Revision control

Other Tools

1
/* This Source Code Form is subject to the terms of the Mozilla Public
2
* License, v. 2.0. If a copy of the MPL was not distributed with this
3
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
4
5
#include "RefCountedCopyConstructorChecker.h"
6
#include "CustomMatchers.h"
7
8
void RefCountedCopyConstructorChecker::registerMatchers(
9
MatchFinder *AstMatcher) {
10
AstMatcher->addMatcher(
11
cxxConstructExpr(
12
hasDeclaration(cxxConstructorDecl(isCompilerProvidedCopyConstructor(),
13
ofClass(hasRefCntMember()))))
14
.bind("node"),
15
this);
16
}
17
18
void RefCountedCopyConstructorChecker::check(
19
const MatchFinder::MatchResult &Result) {
20
const char *Error =
21
"Invalid use of compiler-provided copy constructor on refcounted type";
22
const char *Note = "The default copy constructor also copies the "
23
"default mRefCnt property, leading to reference "
24
"count imbalance issues. Please provide your own "
25
"copy constructor which only copies the fields which "
26
"need to be copied";
27
28
// Everything we needed to know was checked in the matcher - we just report
29
// the error here
30
const CXXConstructExpr *E = Result.Nodes.getNodeAs<CXXConstructExpr>("node");
31
32
diag(E->getLocation(), Error, DiagnosticIDs::Error);
33
diag(E->getLocation(), Note, DiagnosticIDs::Note);
34
}