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clang plugin: check return types for vcl::Window* that should be wrapped

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Change-Id: I7121c1727d1374a955fbccb6554aede468d4977f
This commit is contained in:
Noel Grandin
2015-01-08 13:30:36 +02:00
committed by Michael Meeks
parent e1d413b132
commit a6acccc6d2
1 changed files with 45 additions and 21 deletions
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66
compilerplugins/clang/vclwidgets.cxx
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@@ -37,6 +37,7 @@ public:
bool VisitVarDecl( const VarDecl* var );
bool VisitFunctionDecl( const FunctionDecl* var );
};
bool BaseCheckNotWindowSubclass(const CXXRecordDecl *BaseDefinition, void *) {
@@ -60,6 +61,21 @@ bool isDerivedFromWindow(const CXXRecordDecl *decl) {
return false;
}
bool isPointerToWindowSubclass(const QualType& pType) {
if (!pType->isPointerType())
return false;
QualType pointeeType = pType->getPointeeType();
const RecordType *recordType = pointeeType->getAs<RecordType>();
if (recordType == nullptr) {
return false;
}
const CXXRecordDecl *recordDecl = dyn_cast<CXXRecordDecl>(recordType->getDecl());
if (recordDecl == nullptr) {
return false;
}
return isDerivedFromWindow(recordDecl);
}
bool VCLWidgets::VisitFieldDecl(const FieldDecl * fieldDecl) {
if (ignoreLocation(fieldDecl)) {
return true;
@@ -67,6 +83,15 @@ bool VCLWidgets::VisitFieldDecl(const FieldDecl * fieldDecl) {
if (fieldDecl->isBitField()) {
return true;
}
if (isPointerToWindowSubclass(fieldDecl->getType())) {
report(
DiagnosticsEngine::Remark,
"vcl::Window subclass declared as a pointer field, should be wrapped in VclPtr.",
fieldDecl->getLocation())
<< fieldDecl->getSourceRange();
return true;
}
const RecordType *recordType = fieldDecl->getType()->getAs<RecordType>();
if (recordType == nullptr) {
return true;
@@ -92,18 +117,8 @@ bool VCLWidgets::VisitParmVarDecl(ParmVarDecl const * pvDecl) {
if (ignoreLocation(pvDecl)) {
return true;
}
if (!pvDecl->getType()->isPointerType())
return true;
QualType pointeeType = pvDecl->getType()->getPointeeType();
const RecordType *recordType = pointeeType->getAs<RecordType>();
if (recordType == nullptr)
return true;
const CXXRecordDecl *recordDecl = dyn_cast<CXXRecordDecl>(recordType->getDecl());
if (recordDecl == nullptr)
return true;
// check if this parameter is derived from Window
if (isDerivedFromWindow(recordDecl)) {
if (isPointerToWindowSubclass(pvDecl->getType())) {
report(
DiagnosticsEngine::Remark,
"vcl::Window subclass passed as a pointer parameter, should be wrapped in VclPtr.",
@@ -120,18 +135,9 @@ bool VCLWidgets::VisitVarDecl( const VarDecl* varDecl )
}
if (!varDecl->isLocalVarDecl())
return true;
if (!varDecl->getType()->isPointerType())
return true;
QualType pointeeType = varDecl->getType()->getPointeeType();
const RecordType *recordType = pointeeType->getAs<RecordType>();
if (recordType == nullptr)
return true;
const CXXRecordDecl *recordDecl = dyn_cast<CXXRecordDecl>(recordType->getDecl());
if (recordDecl == nullptr)
return true;
// check if this variables type is derived from Window
if (isDerivedFromWindow(recordDecl)) {
if (isPointerToWindowSubclass(varDecl->getType())) {
report(
DiagnosticsEngine::Remark,
"vcl::Window subclass declared as a pointer var, should be wrapped in VclPtr.",
@@ -142,6 +148,24 @@ bool VCLWidgets::VisitVarDecl( const VarDecl* varDecl )
return true;
}
bool VCLWidgets::VisitFunctionDecl( const FunctionDecl* functionDecl )
{
if (ignoreLocation(functionDecl)) {
return true;
}
QualType t1 { compat::getReturnType(*functionDecl) };
// check if this variables type is derived from Window
if (isPointerToWindowSubclass(t1)) {
report(
DiagnosticsEngine::Remark,
"vcl::Window subclass declared as a return type from a method/function, should be wrapped in VclPtr.",
functionDecl->getLocation())
<< functionDecl->getSourceRange();
}
return true;
}
loplugin::Plugin::Registration< VCLWidgets > X("vclwidgets");
}