mirror of
https://gitlab.winehq.org/wine/wine-gecko.git
synced 2024-09-13 09:24:08 -07:00
103 lines
3.7 KiB
C++
103 lines
3.7 KiB
C++
/* 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 "clang/AST/ASTConsumer.h"
|
|
#include "clang/AST/ASTContext.h"
|
|
#include "clang/AST/RecursiveASTVisitor.h"
|
|
#include "clang/Basic/Version.h"
|
|
#include "clang/Frontend/CompilerInstance.h"
|
|
#include "clang/Frontend/FrontendPluginRegistry.h"
|
|
#include "clang/Sema/Sema.h"
|
|
|
|
#define CLANG_VERSION_FULL (CLANG_VERSION_MAJOR * 100 + CLANG_VERSION_MINOR)
|
|
|
|
using namespace llvm;
|
|
using namespace clang;
|
|
|
|
namespace {
|
|
class MozChecker : public ASTConsumer, public RecursiveASTVisitor<MozChecker> {
|
|
DiagnosticsEngine &Diag;
|
|
const CompilerInstance &CI;
|
|
public:
|
|
MozChecker(const CompilerInstance &CI) : Diag(CI.getDiagnostics()), CI(CI) {}
|
|
virtual void HandleTranslationUnit(ASTContext &ctx) {
|
|
TraverseDecl(ctx.getTranslationUnitDecl());
|
|
}
|
|
|
|
static bool hasCustomAnnotation(const Decl *d, const char *spelling) {
|
|
AnnotateAttr *attr = d->getAttr<AnnotateAttr>();
|
|
if (!attr)
|
|
return false;
|
|
|
|
return attr->getAnnotation() == spelling;
|
|
}
|
|
|
|
bool VisitCXXRecordDecl(CXXRecordDecl *d) {
|
|
// We need definitions, not declarations
|
|
if (!d->isThisDeclarationADefinition()) return true;
|
|
|
|
// Look through all of our immediate bases to find methods that need to be
|
|
// overridden
|
|
typedef std::vector<CXXMethodDecl *> OverridesVector;
|
|
OverridesVector must_overrides;
|
|
for (CXXRecordDecl::base_class_iterator base = d->bases_begin(),
|
|
e = d->bases_end(); base != e; ++base) {
|
|
// The base is either a class (CXXRecordDecl) or it's a templated class...
|
|
CXXRecordDecl *parent = base->getType()
|
|
.getDesugaredType(d->getASTContext())->getAsCXXRecordDecl();
|
|
// The parent might not be resolved to a type yet. In this case, we can't
|
|
// do any checking here. For complete correctness, we should visit
|
|
// template instantiations, but this case is likely to be rare, so we will
|
|
// ignore it until it becomes important.
|
|
if (!parent) {
|
|
continue;
|
|
}
|
|
parent = parent->getDefinition();
|
|
for (CXXRecordDecl::method_iterator M = parent->method_begin();
|
|
M != parent->method_end(); ++M) {
|
|
if (hasCustomAnnotation(*M, "moz_must_override"))
|
|
must_overrides.push_back(*M);
|
|
}
|
|
}
|
|
|
|
for (OverridesVector::iterator it = must_overrides.begin();
|
|
it != must_overrides.end(); ++it) {
|
|
bool overridden = false;
|
|
for (CXXRecordDecl::method_iterator M = d->method_begin();
|
|
!overridden && M != d->method_end(); ++M) {
|
|
// The way that Clang checks if a method M overrides its parent method
|
|
// is if the method has the same name but would not overload.
|
|
if (M->getName() == (*it)->getName() &&
|
|
!CI.getSema().IsOverload(*M, (*it), false))
|
|
overridden = true;
|
|
}
|
|
if (!overridden) {
|
|
unsigned overrideID = Diag.getDiagnosticIDs()->getCustomDiagID(
|
|
DiagnosticIDs::Error, "%0 must override %1");
|
|
unsigned overrideNote = Diag.getDiagnosticIDs()->getCustomDiagID(
|
|
DiagnosticIDs::Note, "function to override is here");
|
|
Diag.Report(d->getLocation(), overrideID) << d->getDeclName() <<
|
|
(*it)->getDeclName();
|
|
Diag.Report((*it)->getLocation(), overrideNote);
|
|
}
|
|
}
|
|
return true;
|
|
}
|
|
};
|
|
|
|
class MozCheckAction : public PluginASTAction {
|
|
public:
|
|
ASTConsumer *CreateASTConsumer(CompilerInstance &CI, StringRef fileName) {
|
|
return new MozChecker(CI);
|
|
}
|
|
|
|
bool ParseArgs(const CompilerInstance &CI,
|
|
const std::vector<std::string> &args) {
|
|
return true;
|
|
}
|
|
};
|
|
}
|
|
|
|
static FrontendPluginRegistry::Add<MozCheckAction>
|
|
X("moz-check", "check moz action");
|