(self)
| 438 | return self |
| 439 | |
| 440 | def simplify(self) -> Expr: |
| 441 | expr = self |
| 442 | seen = set() |
| 443 | while True: |
| 444 | dependents = collect_dependents(expr) |
| 445 | new = expr.simplify_once(dependents=dependents, simplified={}) |
| 446 | if new._name == expr._name: |
| 447 | break |
| 448 | if new._name in seen: |
| 449 | raise RuntimeError( |
| 450 | f"Optimizer does not converge. {expr!r} simplified to {new!r} which was already seen. " |
| 451 | "Please report this issue on the dask issue tracker with a minimal reproducer." |
| 452 | ) |
| 453 | seen.add(new._name) |
| 454 | expr = new |
| 455 | return expr |
| 456 | |
| 457 | def _simplify_down(self): |
| 458 | return |
no test coverage detected