Fix ticket #98, better error reporting on bad types.

Cython/Compiler/PyrexTypes.py

@@ -1313,6 +1313,8 @@ def c_array_type(base_type, size):
     # Construct a C array type.
     if base_type is c_char_type:
         return CCharArrayType(size)
+    elif base_type is error_type:
+        return error_type
     else:
         return CArrayType(base_type, size)
 
@@ -1320,6 +1322,8 @@ def c_ptr_type(base_type):
     # Construct a C pointer type.
     if base_type is c_char_type:
         return c_char_ptr_type
+    elif base_type is error_type:
+        return error_type
     else:
         return CPtrType(base_type)
         

tests/errors/e_badtypeuse.pyx

@@ -20,6 +20,9 @@ cdef f(Grail g,   # incomplete argument type
 	int a[]):
 		pass
         
+cdef NoSuchType* ptr
+ptr = None             # This should not produce another error
+
 _ERRORS = u"""
 3:19: Python object cannot be declared extern
 4:16: Array element cannot be a Python object
@@ -35,4 +38,5 @@ _ERRORS = u"""
 19:1: Use spam() rather than spam(void) to declare a function with no arguments.
 18:7: Argument type 'Grail' is incomplete
 19:1: Invalid use of 'void'
+23:5: 'NoSuchType' is not a type identifier
 """