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-rw-r--r--clang/lib/Sema/Sema.h2
-rw-r--r--clang/lib/Sema/SemaDecl.cpp5
-rw-r--r--clang/lib/Sema/SemaDeclCXX.cpp21
3 files changed, 28 insertions, 0 deletions
diff --git a/clang/lib/Sema/Sema.h b/clang/lib/Sema/Sema.h
index 637804ce092..faaeb7989e5 100644
--- a/clang/lib/Sema/Sema.h
+++ b/clang/lib/Sema/Sema.h
@@ -60,6 +60,7 @@ namespace clang {
class ArrayType;
class LabelStmt;
class SwitchStmt;
+ class CXXTryStmt;
class ExtVectorType;
class TypedefDecl;
class TemplateDecl;
@@ -1225,6 +1226,7 @@ public:
virtual OwningStmtResult ActOnCXXTryBlock(SourceLocation TryLoc,
StmtArg TryBlock,
MultiStmtArg Handlers);
+ void DiagnoseReturnInConstructorExceptionHandler(CXXTryStmt *TryBlock);
//===--------------------------------------------------------------------===//
// Expression Parsing Callbacks: SemaExpr.cpp.
diff --git a/clang/lib/Sema/SemaDecl.cpp b/clang/lib/Sema/SemaDecl.cpp
index 482c304603b..7549c9c69cf 100644
--- a/clang/lib/Sema/SemaDecl.cpp
+++ b/clang/lib/Sema/SemaDecl.cpp
@@ -3054,6 +3054,11 @@ Sema::DeclPtrTy Sema::ActOnFinishFunctionBody(DeclPtrTy D, StmtArg BodyArg) {
if (CurFunctionNeedsScopeChecking)
DiagnoseInvalidJumps(Body);
+ // C++ constructors that have function-try-blocks can't have return statements
+ // in the handlers of that block. (C++ [except.handle]p14) Verify this.
+ if (isa<CXXConstructorDecl>(dcl) && isa<CXXTryStmt>(Body))
+ DiagnoseReturnInConstructorExceptionHandler(cast<CXXTryStmt>(Body));
+
return D;
}
diff --git a/clang/lib/Sema/SemaDeclCXX.cpp b/clang/lib/Sema/SemaDeclCXX.cpp
index 87a518b5583..71d2f80cfc4 100644
--- a/clang/lib/Sema/SemaDeclCXX.cpp
+++ b/clang/lib/Sema/SemaDeclCXX.cpp
@@ -2664,3 +2664,24 @@ void Sema::SetDeclDeleted(DeclPtrTy dcl, SourceLocation DelLoc) {
}
Fn->setDeleted();
}
+
+static void SearchForReturnInStmt(Sema &Self, Stmt *S) {
+ for (Stmt::child_iterator CI = S->child_begin(), E = S->child_end(); CI != E;
+ ++CI) {
+ Stmt *SubStmt = *CI;
+ if (!SubStmt)
+ continue;
+ if (isa<ReturnStmt>(SubStmt))
+ Self.Diag(SubStmt->getSourceRange().getBegin(),
+ diag::err_return_in_constructor_handler);
+ if (!isa<Expr>(SubStmt))
+ SearchForReturnInStmt(Self, SubStmt);
+ }
+}
+
+void Sema::DiagnoseReturnInConstructorExceptionHandler(CXXTryStmt *TryBlock) {
+ for (unsigned I = 0, E = TryBlock->getNumHandlers(); I != E; ++I) {
+ CXXCatchStmt *Handler = TryBlock->getHandler(I);
+ SearchForReturnInStmt(*this, Handler);
+ }
+}
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