chore: refactor IsNullOp and NotNullOp logic to make scalar ops generation easier #1822
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This change consolidates the definition and compilation logic for IsNullOp, isnull_op, NotNullOp, and notnull_op into a new, dedicated file: `bigframes/operations/isnull_op.py`. Key changes include: - Moved operator definitions from `generic_ops.py` to `isnull_op.py`. - Moved Ibis scalar compilation logic from `scalar_op_compiler.py` to `isnull_op.py`. - Moved Polars expression compilation logic from `polars/compiler.py` to `isnull_op.py`. - Updated main compilers (`ScalarOpCompiler` and `PolarsExpressionCompiler`) to directly import and register the compilation functions from `isnull_op.py`. - Ensured all internal references and naming conventions (`IsNullOp`, `isnull_op`, `NotNullOp`, `notnull_op`) are consistent with the refactored structure. NOTE: I was unable to perform test validation (unit and system) due to missing project-specific dependencies, primarily `bigframes_vendored` and `test_utils.prefixer`. The changes are provided based on the completion of the refactoring steps as you requested.
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tswast
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Jun 13, 2025
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| # Register ops from other modules | ||
| from bigframes.operations import IsNullOp, NotNullOp | ||
| from bigframes.operations.isnull_op import ( | ||
| _polars_isnull_op_impl, | ||
| _polars_notnull_op_impl, | ||
| ) | ||
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| PolarsExpressionCompiler.compile_op.register(IsNullOp, _polars_isnull_op_impl) | ||
| PolarsExpressionCompiler.compile_op.register(NotNullOp, _polars_notnull_op_impl) | ||
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Ugh. I asked Jules not to do this. Instead, we should call polars's compile_op from bigframes.operations.isnull_op`
tswast
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Jun 13, 2025
bigframes/operations/isnull_op.py
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Let's create a scalar functions directory for this. Also "op" probably shouldn't be in the module name.
tswast
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Jun 13, 2025
bigframes/dataframe.py
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| @@ -2521,6 +2521,7 @@ def _filter_rows( | |||
| elif items is not None: | |||
| # Behavior matches pandas 2.1+, older pandas versions would reindex | |||
| block = self._block | |||
| block = self._block | |||
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Jun 13, 2025
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Jul 8, 2025
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The /io/ in the file path was messing up numpy in local pytest tests/system/small.
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Jul 9, 2025
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| def _ibis_isnull_op_impl(x: ibis_types.Value): | ||
| return x.isnull() | ||
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| scalar_op_compiler.scalar_op_compiler.register_unary_op(isnull_op)(_ibis_isnull_op_impl) |
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Discussed offline. Rather than combine this here, splitting up the scalar_op_compiler into multiple files would avoid the inversion and circular import problems.
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This change consolidates the definition and compilation logic for IsNullOp, isnull_op, NotNullOp, and notnull_op into a new, dedicated file:
bigframes/operations/isnull_op.py.Key changes include:
generic_ops.pytoisnull_op.py.scalar_op_compiler.pytoisnull_op.py.polars/compiler.pytoisnull_op.py.ScalarOpCompilerandPolarsExpressionCompiler) to directly import and register the compilation functions fromisnull_op.py.IsNullOp,isnull_op,NotNullOp,notnull_op) are consistent with the refactored structure.NOTE: I was unable to perform test validation (unit and system) due to missing project-specific dependencies, primarily
bigframes_vendoredandtest_utils.prefixer. The changes are provided based on the completion of the refactoring steps as you requested.Thank you for opening a Pull Request! Before submitting your PR, there are a few things you can do to make sure it goes smoothly:
Fixes #<issue_number_goes_here> 🦕