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First step of the flexible-tensors series (hp/tensor-stork-N): introduce a Backend IntEnum with FIELD=0 and NDARRAY=1 that subsequent PRs will use to drive a per-tensor backend choice on the upcoming qd.tensor() factory. This PR ships the enum only — no factory, no layout, no kernel integration. Adds: - python/quadrants/_flexible.py with the Backend IntEnum. - Re-export through quadrants/__init__.py so users access it as qd.Backend. - tests/python/test_flexible_backend.py covering symbol export, IntEnum semantics, lookup by name/value, distinct members, and rejection of invalid values. - docs/source/user_guide/flexible_tensors.md seeded with a one-section user-facing description of qd.Backend, registered in the Core Concepts toctree of user_guide/index.md. Tests pass locally; sphinx make html succeeds with no new warnings on the flexible_tensors.md page.
hughperkins
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hughperkins
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Apr 20, 2026
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Let's just call this tensor.md?
hughperkins
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Apr 20, 2026
hughperkins
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Apr 20, 2026
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| """Flexible tensors: per-tensor backend and (later) layout. | |||
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"Flexible tensors" => "Tensor"
hughperkins
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Apr 20, 2026
| import quadrants as qd | ||
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| def test_backend_is_exported(): |
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seems like a lot of tests for a simple enum, but .... 🤷
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Drops the 'flexible' prefix from filenames and identifiers introduced in this branch series so the user-visible names are simply 'tensor'. Also strips PR-N back-references that will be meaningless once these PRs land. Touches only files owned by this series (no changes to external/ or unrelated tests).
…sor.md anchors - Add 'Backend' to expected user_api list in tests/python/test_api.py - Reorder _tensor import in __init__.py to satisfy ruff isort - Replace broken #fields/#ndarrays anchors in tensor.md with plain code spans Made-with: Cursor
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First step of the flexible-tensors series (hp/tensor-stork-N): introduce a Backend IntEnum with FIELD=0 and NDARRAY=1 that subsequent PRs will use to drive a per-tensor backend choice on the upcoming qd.tensor() factory.
This PR ships the enum only — no factory, no layout, no kernel integration.
Adds:
Tests pass locally; sphinx make html succeeds with no new warnings on the flexible_tensors.md page.
Issue: #
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