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make YieldFrom its own distinct from Yield (closes #13780)

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Benjamin Peterson 2012-01-14 08:58:23 -05:00
parent 91f252b179
commit 527c622926
7 changed files with 91 additions and 39 deletions
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Parser/Python.asdl
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@ -59,7 +59,8 @@ module Python
| DictComp(expr key, expr value, comprehension* generators)
| GeneratorExp(expr elt, comprehension* generators)
-- the grammar constrains where yield expressions can occur
| Yield(int is_from, expr? value)
| Yield(expr? value)
| YieldFrom(expr? value)
-- need sequences for compare to distinguish between
-- x < 4 < 3 and (x < 4) < 3
| Compare(expr left, cmpop* ops, expr* comparators)