flow-transform-oxidized

A package for traversing and transforming a Flow AST. Forked from upstream hermes-transform with the sibling deps rewired:

hermes-parser -> flow-parser-oxidized
hermes-estree -> flow-estree-oxidized
hermes-eslint -> flow-eslint-oxidized
prettier-plugin-hermes-parser -> prettier-plugin-flow-parser-oxidized (optional peerDep)

This package is pieced together and inspired by code from:

Known gaps in this fork

Generated files preserved as-is: src/generated/{node-types.js, special-case-node-types/, TransformCloneSignatures.js.flow, TransformModifySignatures.js.flow, TransformReplaceSignatures.js.flow} are marked @generated by upstream codegen scripts that live OUTSIDE this package (at xplat/static_h/tools/hermes-parser/js/scripts/genTransform*.js). Their contents still reference hermes-estree import paths. Retargeting the codegen so it emits flow-estree-oxidized references is a separate follow-up. Until then, consumers who hit those imports can rely on the Yarn-workspace resolution chain (the upstream hermes-estree package is still present alongside the fork).
Internal Symbol.for markers: src/detachedNode.js uses Symbol.for('hermes-transform - ...') runtime markers. These are private to this package (not import paths), preserved verbatim from upstream to keep the fork a pure literal rename.
Partial vendor in flow-parser-oxidized: an early-Phase-E vendor of the print/comments pipeline lives at flow/packages/flow-parser-oxidized/src/transform/print/ (with print.js, detachedNodeTypes.js, comments/). It predates this fork and is left untouched. Consumers should migrate to flow-transform-oxidized over time; a follow-up can either delete the partial vendor or re-export from this package.