apidump

Overview ¶

Package apidump extracts a package's exported API as a stable, sorted list of signature lines and checks it against a committed golden file. It is the mechanism behind the API-baseline tests that pin a package's public surface: any change to an exported type, function, method, constant, or variable shows up as a failing test with a diff, so a breaking change can never land silently — the concrete meaning of "graduated to Stable, API-baseline pinned."