[MSVC] 'property' with an empty array in array subscript expression.
MSVC supports 'property' attribute and allows to apply it to the declaration of an empty array in a class or structure definition.
For example:
```
__declspec(property(get=GetX, put=PutX)) int x[];
```
The above statement indicates that x[] can be used with one or more array indices. In this case, i=p->x[a][b] will be turned into i=p->GetX(a, b), and p->x[a][b] = i will be turned into p->PutX(a, b, i);
Differential Revision: http://reviews.llvm.org/D13336
llvm-svn: 254067
diff --git a/clang/test/SemaCXX/ms-property-error.cpp b/clang/test/SemaCXX/ms-property-error.cpp
new file mode 100644
index 0000000..78a2bf6
--- /dev/null
+++ b/clang/test/SemaCXX/ms-property-error.cpp
@@ -0,0 +1,34 @@
+// RUN: %clang_cc1 -verify -fms-compatibility %s -fsyntax-only -o -
+
+class S {
+public:
+ __declspec(property(get=GetX,put=PutX)) int x[];
+ int GetX(int i, int j) { return i+j; } // expected-note {{'GetX' declared here}}
+ void PutX(int i, int j, int k) { j = i = k; } // expected-note {{'PutX' declared here}}
+};
+
+template <typename T>
+class St {
+public:
+ __declspec(property(get=GetX,put=PutX)) T x[];
+ T GetX(T i, T j) { return i+j; } // expected-note 3 {{'GetX' declared here}}
+ void PutX(T i, T j, T k) { j = i = k; } // expected-note 2 {{'PutX' declared here}}
+ ~St() {
+ x[1] = 0; // expected-error {{too few arguments to function call, expected 3, have 2}}
+ x[2][3] = 4;
+ ++x[2][3];
+ x[1][2] = x[3][4][5]; // expected-error {{too many arguments to function call, expected 2, have 3}}
+ }
+};
+
+// CHECK-LABEL: main
+int main(int argc, char **argv) {
+ S *p1 = 0;
+ St<float> *p2 = 0;
+ St<int> a; // expected-note {{in instantiation of member function 'St<int>::~St' requested here}}
+ int j = (p1->x)[223][11][2]; // expected-error {{too many arguments to function call, expected 2, have 3}}
+ (p1->x[23]) = argc; // expected-error {{too few arguments to function call, expected 3, have 2}}
+ float j1 = (p2->x); // expected-error {{too few arguments to function call, expected 2, have 0}}
+ ((p2->x)[23])[1][2] = *argv; // expected-error {{too many arguments to function call, expected 3, have 4}}
+ return ++(((p2->x)[23])); // expected-error {{too few arguments to function call, expected 2, have 1}}
+}