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frameobject.c: make sure free and cell vars make it into locals, which
makes eval work.
bltinmodule.c & ceval.c: make sure a code object with free variables
that is passed to exec or eval raises an exception.
Also duplicate the current trunk test suite in the 2.1 branch, except
for certain necessary changes: different warnings raised by 2.1, need
for __future__.
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test_scope:1.8):
SF patch 419176 from MvL; fixed bug 418977
Two errors in dict_to_map() helper used by PyFrame_LocalsToFast().
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Fix 2.1 nested scopes crash reported by Evan Simpson
The new test case demonstrates the bug. Be more careful in
symtable_resolve_free() to add a var to cells or frees only if it
won't be added under some other rule.
XXX Add new assertion that will catch this bug.
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now raises NameError instead of UnboundLocalError, because the var in
question is definitely not local. (This affects test_scope.py)
Also update the recent fix by Ping using get_func_name(). Replace
tests of get_func_name() return value with call to get_func_desc() to
match all the other uses.
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- global stmt in class does not affect free vars in methods
- locals() works with free and cell vars
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cause the free variables to leak.
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compile.h: #define NESTED_SCOPES_DEFAULT 0 for Python 2.1
__future__ feature name: "nested_scopes"
symtable.h: Add st_nested_scopes slot. Define flags to track exec and
import star.
Lib/test/test_scope.py: requires nested scopes
compile.c: Fiddle with error messages.
Reverse the sense of ste_optimized flag on
PySymtableEntryObjects. If it is true, there is an optimization
conflict.
Modify get_ref_type to respect st_nested_scopes flags.
Refactor symtable_load_symbols() into several smaller functions,
which use struct symbol_info to share variables. In new function
symtable_update_flags(), raise an error or warning for import * or
bare exec that conflicts with nested scopes. Also, modify handle
for free variables to respect st_nested_scopes flag.
In symtable_init() assign st_nested_scopes flag to
NESTED_SCOPES_DEFAULT (defined in compile.h).
Add preliminary and often incorrect implementation of
symtable_check_future().
Add symtable_lookup() helper for future use.
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Move check_syntax() function into test_support.
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functinos and cell vars with */** parameters
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Add tests for unbound locals (Nick Mathewson)
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recently fixed bug, but it checked for the wrong answer.
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New tests cases for nested scopes.
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