1 files changed, 118 insertions, 0 deletions
diff --git a/clang/test/FixIt/fixit-function-call.cpp b/clang/test/FixIt/fixit-function-call.cpp
new file mode 100644
index 0000000..273e4a4
--- /dev/null
+++ b/clang/test/FixIt/fixit-function-call.cpp
@@ -0,0 +1,118 @@
+// RUN: not %clang_cc1 -fdiagnostics-parseable-fixits -x c++ %s 2> %t
+// RUN: FileCheck %s < %t
+// PR5941
+// END.
+
+/* Test fixits for * and & mismatch in function arguments.
+ * Since fixits are on the notes, they cannot be applied automatically. */
+
+typedef int intTy;
+typedef int intTy2;
+
+void f0(int *a);
+void f1(double *a);
+void f1(intTy &a);
+
+void f2(intTy2 *a) {
+// CHECK: error: no matching function for call to 'f1
+// CHECK: dereference the argument with *
+// CHECK: void f1(intTy &a);
+// CHECK: fix-it{{.*}}*(
+// CHECK-NEXT: fix-it{{.*}})
+// CHECK: void f1(double *a);
+  f1(a + 1);
+
+// This call cannot be fixed since without resulting in null pointer dereference.
+// CHECK: error: no matching function for call to 'f1
+// CHECK-NOT: dereference the argument with *
+// CHECK-NOT: fix-it
+  f1((int *)0);
+}
+
+void f3(int &a) {
+// CHECK: error: no matching function for call to 'f0
+// CHECK: fix-it{{.*}}&
+ f0(a);
+}
+
+
+void m(int *a, const int *b); // match 2
+void m(double *a, int *b); // no match
+void m(int *a, double *b); // no match
+void m(intTy &a, int *b); // match 1
+
+void mcaller(intTy2 a, int b) {
+// CHECK: error: no matching function for call to 'm
+// CHECK: take the address of the argument with &
+// CHECK: fix-it{{.*}}&
+// CHECK: take the address of the argument with &
+// CHECK: fix-it{{.*}}&
+// CHECK: fix-it{{.*}}&
+  m(a, b);
+
+// This call cannot be fixed because (a + 1) is not an l-value.
+// CHECK: error: no matching function for call to 'm
+// CHECK-NOT: fix-it
+  m(a + 1, b);
+}
+
+// Test derived to base conversions.
+struct A {
+  int xx;
+};
+
+struct B : public A {
+  double y;
+};
+
+class C : A {};
+
+bool br(A &a);
+bool bp(A *a);
+bool dv(B b);
+
+void u(int x);
+void u(const C *x);
+void u(double x);
+
+void dbcaller(A *ptra, B *ptrb, C &c, B &refb) {
+  B b;
+
+// CHECK: error: no matching function for call to 'br
+// CHECK: fix-it{{.*}}*
+  br(ptrb); // good
+
+// CHECK: error: no matching function for call to 'bp
+// CHECK: fix-it{{.*}}&
+  bp(b); // good
+
+// CHECK: error: no matching function for call to 'dv
+// CHECK-NOT: fix-it
+  dv(ptra); // bad: base to derived
+
+// CHECK: error: no matching function for call to 'dv
+// CHECK: remove &
+  dv(&b);
+
+// CHECK: error: no matching function for call to 'bp
+// CHECK: remove *
+  bp(*ptra);
+
+// CHECK: error: no viable overloaded '='
+// CHECK: remove &
+  b = &refb;
+
+// TODO: Test that we do not provide a fixit when inheritance is private.
+// CHECK: error: no matching function for call to 'bp
+// There should not be a fixit here:
+// CHECK: fix-it
+  bp(c);
+
+// CHECK: no matching function for call to 'u'
+// CHECK: candidate function not viable: no known conversion from 'C' to 'const C *' for 1st argument; take the address of the argument with &
+// CHECK: candidate function not viable
+// CHECK: candidate function not viable
+  u(c);
+}
+
+// CHECK: errors generated