[mypyc] Match evaluation order of multiple assignment from iterable (#793) #10444
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…ith Python (python#793) Refactored to iterate rvalues first before performing any assignments. Closes mypyc/mypyc#793.
ChetanKhanna
commented
May 8, 2021
| @@ -607,6 +607,91 @@ L5: | |||
| L6: | |||
| return 1 | |||
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| [case testStarUnpack] | |||
| from typing import Any, List, Iterator | |||
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testMultiAssignmentStarUnpack might be a better name?
JukkaL
reviewed
Nov 12, 2021
| r11 = 'y' | ||
| r12 = PyObject_SetAttr(a, r11, r6) | ||
| r13 = r12 >= 0 :: signed | ||
| r14 = PySequence_List(r3) |
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Hmm should we do this before settings any attributes as well? It seems that we only partially evaluate the values to assign ahead of time if using star unpacking.
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Description
Refactored to iterate rvalues first before performing any assignments to match with Python semantics.
Closes mypyc/mypyc#793.
Test Plan
Added a new test case to test the unpacking with
*xtype lvalues