Implement Sema support for the 'condition' part of C++ selection-statements and iteration-statements (if/switch/while/for).

llvm-svn: 56044

1 files changed, 33 insertions, 0 deletions

diff --git a/clang/test/SemaCXX/condition.cpp b/clang/test/SemaCXX/condition.cpp
new file mode 100644
index 00000000000..e535a00f41d
--- /dev/null
+++ b/clang/test/SemaCXX/condition.cpp
@@ -0,0 +1,33 @@
+// RUN: clang -fsyntax-only -verify %s 
+
+void test() {
+  int a;
+  if (a) ++a;
+  if (int x=0) ++x;
+
+  typedef int arr[10];
+  while (arr x=0) ; // expected-error: {{an array type is not allowed here}} expected-error: {{initialization with "{...}" expected for array}}
+  while (int f()=0) ; // expected-error: {{a function type is not allowed here}}
+
+  struct S {} s;
+  if (s) ++a; // expected-error: {{expression must have bool type (or be convertible to bool) ('struct S' invalid)}}
+  while (struct S x=s) ; // expected-error: {{expression must have bool type (or be convertible to bool) ('struct S' invalid)}}
+  switch (s) {} // expected-error: {{statement requires expression of integer type ('struct S' invalid)}}
+
+  while (struct S {} x=0) ; // expected-error: {{types may not be defined in conditions}} expected-error: {{incompatible type}} expected-error: {{expression must have bool type}}
+  while (struct {} x=0) ; // expected-error: {{types may not be defined in conditions}} expected-error: {{incompatible type}} expected-error: {{expression must have bool type}}
+  switch (enum {E} x=0) ; // expected-error: {{types may not be defined in conditions}}
+
+  if (int x=0) { // expected-error: {{previous definition is here}}
+    int x;  // expected-error: {{redefinition of 'x'}}
+  }
+  else
+    int x;  // expected-error: {{redefinition of 'x'}}
+  while (int x=0) int x; // expected-error: {{redefinition of 'x'}} expected-error: {{previous definition is here}}
+  while (int x=0) { int x; } // expected-error: {{redefinition of 'x'}} expected-error: {{previous definition is here}}
+  for (int x; int x=0; ) ; // expected-error: {{redefinition of 'x'}} expected-error: {{previous definition is here}}
+  for (int x; ; ) int x; // expected-error: {{redefinition of 'x'}} expected-error: {{previous definition is here}}
+  for (; int x=0; ) int x; // expected-error: {{redefinition of 'x'}} expected-error: {{previous definition is here}}
+  for (; int x=0; ) { int x; } // expected-error: {{redefinition of 'x'}} expected-error: {{previous definition is here}}
+  switch (int x=0) { default: int x; } // expected-error: {{redefinition of 'x'}} expected-error: {{previous definition is here}}
+}