Generate pointer types correctly (#315)

* Add visit_PtrDecl to generate ptr types correctly

Also removed code duplication from visit_ArrayDecl and visit_TypeDecl by calling _generate_type instead, without emitting the declname.

Added tests for ptr type generation

* Truncate lines longer than 80 characters

per https://github.com/eliben/pycparser/pull/315/files#r269553083

1 files changed, 16 insertions, 2 deletions

diff --git a/tests/test_c_generator.py b/tests/test_c_generator.py
index e2f7bee..b48094e 100644
--- a/tests/test_c_generator.py
+++ b/tests/test_c_generator.py
@@ -336,8 +336,22 @@ class TestCtoC(unittest.TestCase):
         self._assert_ctoc_correct('int g(const int a[const 20]){}')
         ast = parse_to_ast('const int a[const 20];')
         generator = c_generator.CGenerator()
-        self.assertEqual(generator.visit(ast.ext[0].type), 'const int[const 20]')
-        self.assertEqual(generator.visit(ast.ext[0].type.type), 'const int')
+        self.assertEqual(generator.visit(ast.ext[0].type),
+                         'const int [const 20]')
+        self.assertEqual(generator.visit(ast.ext[0].type.type),
+                         'const int')
+
+    def test_ptr_decl(self):
+        src = 'const int ** const  x;'
+        self._assert_ctoc_correct(src)
+        ast = parse_to_ast(src)
+        generator = c_generator.CGenerator()
+        self.assertEqual(generator.visit(ast.ext[0].type),
+                         'const int ** const')
+        self.assertEqual(generator.visit(ast.ext[0].type.type),
+                         'const int *')
+        self.assertEqual(generator.visit(ast.ext[0].type.type.type),
+                         'const int')
 
 if __name__ == "__main__":
     unittest.main()