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Openpulse AST definitions shadow OpenQASM AST definitions with incompatible types #35

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braised-babbage opened this issue Sep 9, 2024 · 0 comments · Fixed by #34
Closed

Openpulse AST definitions shadow OpenQASM AST definitions with incompatible types #35

braised-babbage opened this issue Sep 9, 2024 · 0 comments · Fixed by #34

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@braised-babbage
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The following program fails to typecheck with mypy 1.27:

from openpulse.ast import CalibrationDefinition, CalibrationStatement

def foo(stmt: CalibrationDefinition):
    stmt.body = []

The mypy error is

mypy example.py
example.py:4: error: Incompatible types in assignment (expression has type "list[Never]", variable has type "str")  [assignment]
Found 1 error in 1 file (checked 1 source file)

The variable has type "str" comes from the openqasm3.ast.CalibrationDefinition, which does use str for the body field.
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Be explicit about openqasm3.ast imports openqasm/openpulse-python
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@braised-babbage