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403a4f9b82
The -no-ns-alloc-error migration option now causes the diagnostic to be ignored completely. If this isn't desired, the error can be downgraded to a warning using the usual -Wno-error=arcmt-ns-alloc. Note that we can't use -verify right now on this test because VerifyDiagnosticConsumer gets confused by multiple SourceManager instances, which is presumably the reason it was XFAILed in the first place and why the regression wasn't detected. We'll grep instead for now. llvm-svn: 209172
78 lines
2.5 KiB
C++
78 lines
2.5 KiB
C++
//===--- TransGCCalls.cpp - Transformations to ARC mode -------------------===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "Transforms.h"
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#include "Internals.h"
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#include "clang/AST/ASTContext.h"
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#include "clang/Sema/SemaDiagnostic.h"
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using namespace clang;
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using namespace arcmt;
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using namespace trans;
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namespace {
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class GCCollectableCallsChecker :
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public RecursiveASTVisitor<GCCollectableCallsChecker> {
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MigrationContext &MigrateCtx;
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IdentifierInfo *NSMakeCollectableII;
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IdentifierInfo *CFMakeCollectableII;
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public:
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GCCollectableCallsChecker(MigrationContext &ctx)
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: MigrateCtx(ctx) {
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IdentifierTable &Ids = MigrateCtx.Pass.Ctx.Idents;
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NSMakeCollectableII = &Ids.get("NSMakeCollectable");
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CFMakeCollectableII = &Ids.get("CFMakeCollectable");
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}
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bool shouldWalkTypesOfTypeLocs() const { return false; }
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bool VisitCallExpr(CallExpr *E) {
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TransformActions &TA = MigrateCtx.Pass.TA;
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if (MigrateCtx.isGCOwnedNonObjC(E->getType())) {
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TA.report(E->getLocStart(), diag::warn_arcmt_nsalloc_realloc,
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E->getSourceRange());
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return true;
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}
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Expr *CEE = E->getCallee()->IgnoreParenImpCasts();
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if (DeclRefExpr *DRE = dyn_cast<DeclRefExpr>(CEE)) {
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if (FunctionDecl *FD = dyn_cast_or_null<FunctionDecl>(DRE->getDecl())) {
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if (!FD->getDeclContext()->getRedeclContext()->isFileContext())
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return true;
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if (FD->getIdentifier() == NSMakeCollectableII) {
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Transaction Trans(TA);
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TA.clearDiagnostic(diag::err_unavailable,
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diag::err_unavailable_message,
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diag::err_ovl_deleted_call, // ObjC++
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DRE->getSourceRange());
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TA.replace(DRE->getSourceRange(), "CFBridgingRelease");
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} else if (FD->getIdentifier() == CFMakeCollectableII) {
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TA.reportError("CFMakeCollectable will leak the object that it "
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"receives in ARC", DRE->getLocation(),
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DRE->getSourceRange());
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}
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}
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}
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return true;
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}
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};
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} // anonymous namespace
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void GCCollectableCallsTraverser::traverseBody(BodyContext &BodyCtx) {
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GCCollectableCallsChecker(BodyCtx.getMigrationContext())
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.TraverseStmt(BodyCtx.getTopStmt());
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}
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