Rework namespaces into cname.

Otherwise we have to trace namespace arguments all the way through all
declarators and types, only to mutate the cnames at the end.

Cython/Compiler/Nodes.py

@@ -912,7 +912,6 @@ class CppClassNode(CStructOrUnionDefNode):
     #  attributes    [CVarDefNode] or None
     #  entry         Entry
     #  base_classes  [string]
-    #  namespace     string or None
 
     def analyse_declarations(self, env):
         scope = None
@@ -931,7 +930,7 @@ class CppClassNode(CStructOrUnionDefNode):
                 base_class_types.append(base_class_entry.type)
         self.entry = env.declare_cpp_class(
             self.name, "cppclass", scope, 0, self.pos,
-            self.cname, base_class_types, self.namespace, visibility = self.visibility)
+            self.cname, base_class_types, visibility = self.visibility)
         if self.attributes is not None:
             if self.in_pxd and not env.in_cinclude:
                 self.entry.defined_in_pxd = 1

Cython/Compiler/Parsing.py

@@ -1963,6 +1963,8 @@ def p_c_simple_declarator(s, ctx, empty, is_type, cmethod_flag,
                 error(s.position(), "Empty declarator")
             name = ""
             cname = None
+        if cname is None and ctx.namespace is not None:
+            cname = ctx.namespace + "::" + name
         result = Nodes.CNameDeclaratorNode(pos,
             name = name, cname = cname, default = rhs)
     result.calling_convention = calling_convention
@@ -2124,7 +2126,7 @@ def p_cdef_extern_block(s, pos, ctx):
         _, include_file = p_string_literal(s)
     if s.systring == "namespace":
         s.next()
-        ctx.namespace = p_ident(s)
+        ctx.namespace = p_dotted_name(s, as_allowed=False)[2].replace('.', '::')
     ctx = ctx(cdef_flag = 1, visibility = 'extern')
     if p_nogil(s):
         ctx.nogil = 1
@@ -2141,6 +2143,8 @@ def p_c_enum_definition(s, pos, ctx):
         name = s.systring
         s.next()
         cname = p_opt_cname(s)
+        if cname is None and ctx.namespace is not None:
+            cname = ctx.namespace + "::" + name
     else:
         name = None
         cname = None
@@ -2195,6 +2199,8 @@ def p_c_struct_or_union_definition(s, pos, ctx):
     s.next()
     name = p_ident(s)
     cname = p_opt_cname(s)
+    if cname is None and ctx.namespace is not None:
+        cname = ctx.namespace + "::" + name
     attributes = None
     if s.sy == ':':
         s.next()
@@ -2539,13 +2545,14 @@ def p_cpp_class_definition(s, pos,  ctx):
     s.next()
     module_path = []
     class_name = p_ident(s)
+    cname = p_opt_cname(s)
+    if cname is None and ctx.namespace is not None:
+        cname = ctx.namespace + "::" + class_name
     if s.sy == '.':
         error(pos, "Qualified class name not allowed C++ class")
     base_classes = []
     objstruct_name = None
     typeobj_name = None
-    base_class_module = None
-    base_class_name = None
     if s.sy == '(':
         base_class = True
         while (base_class):
@@ -2581,9 +2588,8 @@ def p_cpp_class_definition(s, pos,  ctx):
         s.expect_newline("Syntax error in C++ class definition")
     return Nodes.CppClassNode(pos,
         name = class_name,
-        cname = None,
+        cname = cname,
         base_classes = base_classes,
-        namespace = ctx.namespace,
         visibility = ctx.visibility,
         in_pxd = ctx.level == 'module_pxd',
         attributes = attributes)

Cython/Compiler/PyrexTypes.py

@@ -1374,10 +1374,8 @@ class CppClassType(CType):
     is_cpp_class = 1
     has_attributes = 1
     base_classes = []
-    namespace = None
     
-    def __init__(self, name, kind, scope, typedef_flag, cname, base_classes,
-                 namespace = None, packed=False):
+    def __init__(self, name, kind, scope, typedef_flag, cname, base_classes, packed=False):
         self.name = name
         self.cname = cname
         self.kind = kind
@@ -1387,15 +1385,12 @@ class CppClassType(CType):
         self._convert_code = None
         self.packed = packed
         self.base_classes = base_classes
-        self.namespace = namespace
 
     def declaration_code(self, entity_code, for_display = 0, dll_linkage = None, pyrex = 0):
         if for_display or pyrex:
             name = self.name
         else:
             name = self.cname
-            if self.namespace is not None:
-                name = "%s::%s" % (self.namespace.replace('.', '::'), name)
         return "%s %s" % (name, entity_code)
 
     def is_subclass(self, other_type):

Cython/Compiler/Symtab.py

@@ -1095,7 +1095,7 @@ class ModuleScope(Scope):
         return entry
     
     def declare_cpp_class(self, name, kind, scope,
-            typedef_flag, pos, cname = None, base_classes = [], namespace = None,
+            typedef_flag, pos, cname = None, base_classes = [],
             visibility = 'extern', packed = False):
         if visibility != 'extern':
             error(pos, "C++ classes may only be extern")
@@ -1104,7 +1104,7 @@ class ModuleScope(Scope):
         entry = self.lookup(name)
         if not entry:
             type = PyrexTypes.CppClassType(
-                name, kind, scope, typedef_flag, cname, base_classes, namespace, packed)
+                name, kind, scope, typedef_flag, cname, base_classes, packed)
             entry = self.declare_type(name, type, pos, cname,
                 visibility = visibility, defining = scope is not None)
         else: