Accept braced-init-lists in conditions, and, in passing, dramatically improve
the diagnostic for using a parenthesized direct-initializer in a condition.
git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@151137 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Parser/cxx0x-condition.cpp b/test/Parser/cxx0x-condition.cpp
new file mode 100644
index 0000000..ce7d1a8
--- /dev/null
+++ b/test/Parser/cxx0x-condition.cpp
@@ -0,0 +1,37 @@
+// RUN: %clang_cc1 -fsyntax-only -verify -std=c++11 %s
+
+struct S { S(int); operator bool(); };
+
+void f() {
+ int a;
+ typedef int n;
+
+ while (a) ;
+ while (int x) ; // expected-error {{variable declaration in condition must have an initializer}}
+ while (float x = 0) ;
+ if (const int x = a) ; // expected-warning{{empty body}} expected-note{{put the semicolon on a separate line to silence this warning}}
+ switch (int x = a+10) {}
+ for (; int x = ++a; ) ;
+
+ if (S(a)) {} // ok
+ if (S(a) = 0) {} // ok
+ if (S(a) == 0) {} // ok
+
+ if (S(n)) {} // expected-error {{unexpected type name 'n': expected expression}}
+ if (S(n) = 0) {} // ok
+ if (S(n) == 0) {} // expected-error {{unexpected type name 'n': expected expression}}
+
+ if (S b(a)) {} // expected-error {{variable declaration in condition cannot have a parenthesized initializer}}
+
+ if (S b(n)) {} // expected-error {{a function type is not allowed here}} expected-error {{must have an initializer}}
+ if (S b(n) = 0) {} // expected-error {{a function type is not allowed here}}
+ if (S b(n) == 0) {} // expected-error {{a function type is not allowed here}} expected-error {{did you mean '='?}}
+
+ // FIXME: this is legal, and incorrectly rejected, because tentative parsing
+ // does not yet know about braced function-style casts.
+ if (S{a}) {} // unexpected-error{{unqualified-id}}
+
+ if (S a{a}) {} // ok
+ if (S a = {a}) {} // ok
+ if (S a == {a}) {} // expected-error {{did you mean '='?}}
+}