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API Migration Mapper

Map selected API changes with explicit, inspectable rules.

Rule-based rewrites only. No parser, no type checker, no scope analysis. Review every change; anything in MANUAL REVIEW is untouched.

Input

Migration preset

Load example:

JavaScript or TypeScript snippet

Mechanical coverage—

Measures the rule table’s coverage, NOT the correctness of the migration.

Run a mapping to see the rewritten snippet.

Line	Rule ID	Before	After
No findings yet.