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-rw-r--r--test/SemaCXX/for-range-dereference.cpp86
1 files changed, 86 insertions, 0 deletions
diff --git a/test/SemaCXX/for-range-dereference.cpp b/test/SemaCXX/for-range-dereference.cpp
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+++ b/test/SemaCXX/for-range-dereference.cpp
@@ -0,0 +1,86 @@
+// RUN: %clang_cc1 -std=c++11 -fsyntax-only -verify %s
+struct Data { };
+struct T {
+ Data *begin();
+ Data *end();
+};
+
+struct NoBegin {
+ Data *end();
+};
+
+struct DeletedEnd : public T {
+ Data *begin();
+ Data *end() = delete; //expected-note {{function has been explicitly marked deleted here}}
+};
+
+struct DeletedADLBegin { };
+
+int* begin(DeletedADLBegin) = delete; //expected-note {{candidate function has been explicitly deleted}} \
+ expected-note 6 {{candidate function not viable: no known conversion}}
+
+struct PrivateEnd {
+ Data *begin();
+
+ private:
+ Data *end(); // expected-note 1 {{declared private here}}
+};
+
+struct ADLNoEnd { };
+Data * begin(ADLNoEnd); // expected-note 7 {{candidate function not viable: no known conversion}}
+
+struct OverloadedStar {
+ T operator*();
+};
+
+void f() {
+ T t;
+ for (auto i : t) { }
+ T *pt;
+ for (auto i : pt) { } // expected-error{{invalid range expression of type 'T *'; did you mean to dereference it with '*'?}}
+
+ int arr[10];
+ for (auto i : arr) { }
+ int (*parr)[10];
+ for (auto i : parr) { }// expected-error{{invalid range expression of type 'int (*)[10]'; did you mean to dereference it with '*'?}}
+
+ NoBegin NB;
+ for (auto i : NB) { }// expected-error{{range type 'NoBegin' has 'end' member but no 'begin' member}}
+ NoBegin *pNB;
+ for (auto i : pNB) { }// expected-error{{invalid range expression of type 'NoBegin *'; no viable 'begin' function available}}
+ NoBegin **ppNB;
+ for (auto i : ppNB) { }// expected-error{{invalid range expression of type 'NoBegin **'; no viable 'begin' function available}}
+ NoBegin *****pppppNB;
+ for (auto i : pppppNB) { }// expected-error{{invalid range expression of type 'NoBegin *****'; no viable 'begin' function available}}
+
+ ADLNoEnd ANE;
+ for (auto i : ANE) { } // expected-error{{invalid range expression of type 'ADLNoEnd'; no viable 'end' function available}}
+ ADLNoEnd *pANE;
+ for (auto i : pANE) { } // expected-error{{invalid range expression of type 'ADLNoEnd *'; no viable 'begin' function available}}
+
+ DeletedEnd DE;
+ for (auto i : DE) { } // expected-error{{attempt to use a deleted function}} \
+expected-note {{when looking up 'end' function for range expression of type 'DeletedEnd'}}
+ DeletedEnd *pDE;
+
+ for (auto i : pDE) { } // expected-error {{invalid range expression of type 'DeletedEnd *'; no viable 'begin' function available}}
+
+ PrivateEnd PE;
+ // FIXME: This diagnostic should be improved, as it does not specify that
+ // the range is invalid.
+ for (auto i : PE) { } // expected-error{{'end' is a private member of 'PrivateEnd'}}
+
+ // FIXME: This diagnostic should be improved as well. It should not mention a
+ // deleted function, and we should not issue a FixIt suggesting a dereference.
+ PrivateEnd *pPE;
+ for (auto i : pPE) { }// expected-error {{invalid range expression of type 'PrivateEnd *'}}
+
+ DeletedADLBegin DAB;
+ for (auto i : DAB) { } // expected-error {{call to deleted function 'begin'}}\
+ expected-note {{when looking up 'begin' function for range expression of type 'DeletedADLBegin'}}
+
+ OverloadedStar OS;
+ for (auto i : *OS) { }
+
+ for (auto i : OS) { } // expected-error {{invalid range expression of type 'OverloadedStar'; did you mean to dereference it with '*'?}}
+}