1.1 --- a/Cython/Compiler/Builtin.py Wed Mar 25 15:00:06 2009 -0700 1.2 +++ b/Cython/Compiler/Builtin.py Wed Mar 25 15:23:46 2009 -0700 1.3 @@ -340,10 +340,14 @@ 1.4 for desc in builtin_function_table: 1.5 declare_builtin_func(*desc) 1.6 1.7 +builtin_types = {} 1.8 + 1.9 def init_builtin_types(): 1.10 + global builtin_types 1.11 for name, cname, funcs in builtin_types_table: 1.12 utility = builtin_utility_code.get(name) 1.13 the_type = builtin_scope.declare_builtin_type(name, cname, utility) 1.14 + builtin_types[name] = the_type 1.15 for name, args, ret, cname in funcs: 1.16 sig = Signature(args, ret) 1.17 the_type.scope.declare_cfunction(name, sig.function_type(), None, cname)

2.1 --- a/Cython/Compiler/Nodes.py Wed Mar 25 15:00:06 2009 -0700 2.2 +++ b/Cython/Compiler/Nodes.py Wed Mar 25 15:23:46 2009 -0700 2.3 @@ -2676,6 +2676,12 @@ 2.4 return 2.5 else: 2.6 home_scope = env 2.7 + 2.8 + if self.visibility == 'extern': 2.9 + if self.module_name == '__builtin__' and self.class_name in Builtin.builtin_types: 2.10 + error(self.pos, "%s already a builtin Cython type" % self.class_name) 2.11 + return 2.12 + 2.13 self.entry = home_scope.declare_c_class( 2.14 name = self.class_name, 2.15 pos = self.pos,

3.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000 3.2 +++ b/tests/errors/builtin_type_conflict_T170.pyx Wed Mar 25 15:23:46 2009 -0700 3.3 @@ -0,0 +1,8 @@ 3.4 +cdef extern from *: 3.5 + ctypedef class __builtin__.list [object PyListObject]: 3.6 + pass 3.7 + 3.8 +cdef list foo = [] 3.9 +_ERRORS = u""" 3.10 +:2:4: list already a builtin Cython type 3.11 +"""