20 lines
1.0 KiB
Markdown
20 lines
1.0 KiB
Markdown
## ResultBox Migration TODO (Phase 9.78h follow-up)
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Goal: fully migrate from legacy `box_trait::ResultBox` to `boxes::result::NyashResultBox` (aka `boxes::ResultBox`).
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### Current usages (grep snapshot)
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- src/backend/vm.rs
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- Handles both new `NyashResultBox` and legacy `box_trait::ResultBox` for `.is_ok/.get_value/.get_error` (deprecation suppressed)。
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### Proposed steps (small, incremental)
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- Step 1: Keep dual handling but gate legacy path with feature flag or cfg for deprecation-only builds（任意）。
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- Step 2: Audit call sites that construct legacy ResultBox; replace with `boxes::result::NyashResultBox` constructors。
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- Step 3: Remove legacy path from VM once no legacy constructors remain。
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- Step 4: Delete/Archive legacy `box_trait::ResultBox`（テスト緑後）。
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### Notes
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- New API already aliased: `pub type ResultBox = NyashResultBox;` so external references may transparently resolve after migration。
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- Keep migration scoped: do not mix with unrelated refactors。
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Last updated: 2025-08-25
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