From 9429250889790bb562ca1821c25138e53dda0313 Mon Sep 17 00:00:00 2001
From: Robert Bradshaw <robertwb@math.washington.edu>
Date: Wed, 24 Oct 2007 21:35:02 -0700
Subject: [PATCH] cache builtins at module level

---
 Cython/Compiler/ModuleNode.py |  4 ++--
 Cython/Compiler/Nodes.py      |  2 +-
 Cython/Compiler/Symtab.py     | 30 ++++++++++++++++--------------
 3 files changed, 19 insertions(+), 17 deletions(-)

diff --git a/Cython/Compiler/ModuleNode.py b/Cython/Compiler/ModuleNode.py
index f541f1f1..74708b24 100644
--- a/Cython/Compiler/ModuleNode.py
+++ b/Cython/Compiler/ModuleNode.py
@@ -1293,7 +1293,7 @@ class ModuleNode(Nodes.Node, Nodes.BlockNode):
                 code.put_decref("((PyObject*)%s)" % type.typeptr_cname, PyrexTypes.py_object_type)
         if Options.cache_builtins:
             code.putln("/*--- Builtin cleanup code ---*/")
-            for entry in env.builtin_scope().cached_entries:
+            for entry in env.cached_builtins:
                 code.put_var_decref_clear(entry)
         code.putln("/*--- Intern cleanup code ---*/")
         for entry in env.pynum_entries:
@@ -1370,7 +1370,7 @@ class ModuleNode(Nodes.Node, Nodes.BlockNode):
     def generate_builtin_init_code(self, env, code):
         # Lookup and cache builtin objects.
         if Options.cache_builtins:
-            for entry in env.builtin_scope().cached_entries:
+            for entry in env.cached_builtins:
                 if Options.intern_names:
                     #assert entry.interned_cname is not None
                     code.putln(
diff --git a/Cython/Compiler/Nodes.py b/Cython/Compiler/Nodes.py
index 515ed394..00082716 100644
--- a/Cython/Compiler/Nodes.py
+++ b/Cython/Compiler/Nodes.py
@@ -129,7 +129,7 @@ class BlockNode:
             del entries[:]
 
     def generate_cached_builtins_decls(self, env, code):
-        entries = env.builtin_scope().undeclared_cached_entries
+        entries = env.global_scope().undeclared_cached_builtins
         if len(entries) > 0:
             code.putln("")
         for entry in entries:
diff --git a/Cython/Compiler/Symtab.py b/Cython/Compiler/Symtab.py
index 3ad1b484..f1ae18ff 100644
--- a/Cython/Compiler/Symtab.py
+++ b/Cython/Compiler/Symtab.py
@@ -560,8 +560,6 @@ class BuiltinScope(Scope):
         for name, definition in self.builtin_entries.iteritems():
             cname, type = definition
             self.declare_var(name, type, None, cname)
-        self.cached_entries = []
-        self.undeclared_cached_entries = []
         
     def declare_builtin(self, name, pos):
         if not hasattr(__builtin__, name):
@@ -569,16 +567,6 @@ class BuiltinScope(Scope):
                 return self.outer_scope.declare_builtin(name, pos)
             else:
                 error(pos, "undeclared name not builtin: %s"%name)
-        entry = self.declare(name, name, py_object_type, pos)
-        if Options.cache_builtins:
-            entry.is_builtin = 1
-            entry.is_const = 1
-            entry.cname = Naming.builtin_prefix + name
-            self.cached_entries.append(entry)
-            self.undeclared_cached_entries.append(entry)
-        else:
-            entry.is_builtin = 1
-        return entry
     
     def declare_builtin_cfunction(self, name, type, cname, python_equiv = None,
             utility_code = None):
@@ -688,6 +676,8 @@ class ModuleScope(Scope):
         self.types_imported = {}
         self.pynum_entries = []
         self.has_extern_class = 0
+        self.cached_builtins = []
+        self.undeclared_cached_builtins = []
     
     def qualifying_scope(self):
         return self.parent_module
@@ -696,8 +686,20 @@ class ModuleScope(Scope):
         return self
     
     def declare_builtin(self, name, pos):
-        entry = Scope.declare_builtin(self, name, pos)
-        #entry.interned_cname = self.intern(name)
+        if not hasattr(__builtin__, name):
+            if self.outer_scope is not None:
+                return self.outer_scope.declare_builtin(name, pos)
+            else:
+                error(pos, "undeclared name not builtin: %s"%name)
+        entry = self.declare(name, name, py_object_type, pos)
+        if Options.cache_builtins:
+            entry.is_builtin = 1
+            entry.is_const = 1
+            entry.cname = Naming.builtin_prefix + name
+            self.cached_builtins.append(entry)
+            self.undeclared_cached_builtins.append(entry)
+        else:
+            entry.is_builtin = 1
         return entry
     
     def intern(self, name):
-- 
2.26.2