[issue32344] Explore whether peephole.c tuple of constants folding can be an AST transformation

[Raymond Hettinger]

New submission from Raymond Hettinger <raymond.hettinger at gmail.com>:

Can the peephole optimizer's fold_tuple_on_constants() be moved to ast_opt?

It looks to me like there is sufficient information in the tree:


import ast
print(ast.dump(ast.parse('c = (50+1, 60+2)')))
-----------------------------------------------
Module(body=[Assign(targets=[Name(id='c', ctx=Store())],
                    value=Tuple(elts=[BinOp(left=Num(n=50), op=Add(), right=Num(n=1)),
                                      BinOp(left=Num(n=60), op=Add(), right=Num(n=2))], ctx=Load()))],
       docstring=None)
'''

----------
assignee: serhiy.storchaka
components: Interpreter Core
messages: 308467
nosy: inada.naoki, rhettinger, serhiy.storchaka, vstinner
priority: low
severity: normal
status: open
title: Explore whether peephole.c tuple of constants folding can be an AST transformation
versions: Python 3.7

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Python tracker <report at bugs.python.org>
<https://bugs.python.org/issue32344>
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