Summary:
Fixes https://github.com/pytorch/pytorch/issues/72901.
Since we can't get access to the source code for synthesized magic methods on dataclasses, we have to synthesize our own versions. `torch/jit/_dataclass_impls.py` has the code that does this.
What's supported
- Synthesized `__init__`, `__eq__`, and the comparison magic methods when `order=True` is set on the dataclass decorator
- Default values for fields
- `__post_init__`, including using `InitVar` fields inside of `__post_init__`, on Python 3.8+
- Overriding `__eq__` or any of the comparison magic methods to provide your own implementation
What's not supported
- Default factory initializers for fields
- Frozen dataclasses
- `InitVar` on Python 3.7
- `__repr__` and `__hash__` (these are actually implemented, but the TorchScript interpreter won't call them)
- Using the `!=` operator on dataclasses inside TorchScript; this is because TorchScript requires that you implement `__ne__` to use this operator, whereas in regular Python the `!=` operator will resolve to the negation of whatever is returned by `__eq__` if there's no `__ne__`. Dataclasses don't actually synthesize an `__ne__` method for this reason. I've been toying with different ways to fix this but `!=` is not working in this PR at the moment.
qihqi
Pull Request resolved: https://github.com/pytorch/pytorch/pull/73066
Reviewed By: mrshenli
Differential Revision: D34398107
Pulled By: qihqi
fbshipit-source-id: f5a792555c88f3631f97837a96687e4890660a32
(cherry picked from commit ea7f077dc49a4ee75ca0d1409aedd85228952881)
Summary:
**Summary**: This commit solves the first part of https://github.com/pytorch/pytorch/issues/52306, which disallows type annotations on instance attributes inside any method other than the constructor.
Pull Request resolved: https://github.com/pytorch/pytorch/pull/67051
Test Plan:
Added test to test_types.py.
**Reviewers**: Zhengxu Chen
**Subscribers**: Zhengxu Chen, Yanan Cao, Peng Wu, Yining Lu
**Tasks**: T103941984
**Tags**: pytorch
**Fixes** https://github.com/pytorch/pytorch/issues/52306
Reviewed By: zhxchen17
Differential Revision: D31843527
Pulled By: andrewor14
fbshipit-source-id: 624879ae801621e367c59228be8b0581ecd30ef4
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/59956
Issue #50175. Basically two things need to be checked and are lacking currently:
1. Overload declarations should always have a single `pass` statement as the body.
2. There should be always an implementation provided for decls which doesn't
have the torch.jit._overload decorator. So in this case we need to check
whether we are actually compiling a function body with decorator ahead.
Test Plan:
python test/test_jit.py TestScript.test_function_overloads
Imported from OSS
Reviewed By: gmagogsfm
Differential Revision: D29106555
fbshipit-source-id: 2d9d7df2fb51ab6db0e1b726f9644e4cfbf733d6
