[Python-checkins] CVS: python/nondist/peps pep-0280.txt,1.8,1.9

[Guido van Rossum]

Update of /cvsroot/python/python/nondist/peps
In directory usw-pr-cvs1:/tmp/cvs-serv11989

Modified Files:
	pep-0280.txt 
Log Message:
More FAQs.


Index: pep-0280.txt
===================================================================
RCS file: /cvsroot/python/python/nondist/peps/pep-0280.txt,v
retrieving revision 1.8
retrieving revision 1.9
diff -C2 -d -r1.8 -r1.9
*** pep-0280.txt	11 Feb 2002 14:36:51 -0000	1.8
--- pep-0280.txt	11 Feb 2002 15:00:03 -0000	1.9
***************
*** 415,418 ****
--- 415,445 ----
      A. It is intended to support that fully.
  
+     Q. What happens when a global is deleted?
+ 
+     A. The module's celldict would have a cell with a NULL objptr for
+        that key.
+ 
+     Q. What would the C code for LOAD_GLOBAL_CELL look like?
+ 
+     A. case LOAD_GLOBAL_CELL:
+            cell = func_cells[oparg];
+            x = cell->objptr;
+            if (x == NULL) {
+                x = cell->cellptr->objptr;
+                if (x == NULL) {
+                    ... error recovery ...
+                    break;
+                }
+            }
+            Py_INCREF(x);
+            continue;
+ 
+     Q. What happens in the module's top-level code where there is
+        presumably no func_cells array?
+ 
+     A. We could do some code analysis and create a func_cells array,
+        or we could use LOAD_NAME which should use PyMapping_GetItem on
+        the globals dict.
+ 
  
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