1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
|
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/*
* This file is part of the LibreOffice project.
*
* 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/.
*/
#ifndef LO_CLANG_SHARED_PLUGINS
#include <string>
#include <iostream>
#include "plugin.hxx"
#include "check.hxx"
#include "clang/AST/CXXInheritance.h"
/*
what might be more interesting is a warning about subclasses that add
members but do not override virtual operator==() - that is easily
forgotten and hard to notice.
*/
namespace {
class SfxPoolItem:
public loplugin::FilteringPlugin<SfxPoolItem>
{
public:
explicit SfxPoolItem(loplugin::InstantiationData const & data): FilteringPlugin(data)
{}
virtual void run() override { TraverseDecl(compiler.getASTContext().getTranslationUnitDecl()); }
bool VisitCXXRecordDecl( const CXXRecordDecl* );
};
bool BaseCheckNotSfxPoolItemSubclass(const CXXRecordDecl *BaseDefinition) {
if (BaseDefinition && loplugin::TypeCheck(BaseDefinition).Class("SfxPoolItem").GlobalNamespace()) {
return false;
}
return true;
}
bool isDerivedFromSfxPoolItem(const CXXRecordDecl *decl) {
if (!decl)
return false;
if (loplugin::TypeCheck(decl).Class("SfxPoolItem").GlobalNamespace())
return true;
if (!decl->hasDefinition()) {
return false;
}
if (// not sure what hasAnyDependentBases() does,
// but it avoids classes we don't want, e.g. WeakAggComponentImplHelper1
!decl->hasAnyDependentBases() &&
!decl->forallBases(BaseCheckNotSfxPoolItemSubclass, true)) {
return true;
}
return false;
}
bool BaseCheckNotSwMsgPoolItemSubclass(const CXXRecordDecl *BaseDefinition) {
if (BaseDefinition && loplugin::TypeCheck(BaseDefinition).Class("SwMsgPoolItem")) {
return false;
}
return true;
}
bool isDerivedFromSwMsgPoolItem(const CXXRecordDecl *decl) {
if (!decl)
return false;
if (loplugin::TypeCheck(decl).Class("SwMsgPoolItem").GlobalNamespace())
return true;
if (!decl->hasDefinition()) {
return false;
}
if (// not sure what hasAnyDependentBases() does,
// but it avoids classes we don't want, e.g. WeakAggComponentImplHelper1
!decl->hasAnyDependentBases() &&
!decl->forallBases(BaseCheckNotSwMsgPoolItemSubclass, true)) {
return true;
}
return false;
}
bool endsWith(const std::string& a, const std::string& b) {
if (b.size() > a.size()) return false;
return std::equal(a.begin() + a.size() - b.size(), a.end(), b.begin());
}
bool SfxPoolItem::VisitCXXRecordDecl(const CXXRecordDecl* decl)
{
if (ignoreLocation(decl)) {
return true;
}
if (!decl->hasDefinition()) {
return true;
}
// check if this class is derived from Window
if (!isDerivedFromSfxPoolItem(decl)) {
return true;
}
// the SwMsgPoolItem are some sort of hack to transport down-castable objects to SwClient::Modify(), they're not "real" items
if (isDerivedFromSwMsgPoolItem(decl)) {
return true;
}
if (decl->field_begin() == decl->field_end()) {
return true;
}
// the enum types do some weird stuff involving SfxEnumItemInterface
auto tc = loplugin::TypeCheck(decl);
if (tc.Class("SfxEnumItem").GlobalNamespace() || tc.Class("SfxAllEnumItem").GlobalNamespace())
return true;
for (auto it = decl->method_begin(); it != decl->method_end(); ++it) {
if ( endsWith((*it)->getQualifiedNameAsString(), "::operator==") )
return true;
}
report(
DiagnosticsEngine::Warning,
"SfxPoolItem subclass %0 declares new fields, but does not override operator==",
compat::getBeginLoc(decl))
<< decl->getQualifiedNameAsString() << decl->getSourceRange();
return true;
}
loplugin::Plugin::Registration< SfxPoolItem > sfxpoolitem("sfxpoolitem");
} // namespace
#endif // LO_CLANG_SHARED_PLUGINS
/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
|
