ruby-grape / grape / 35523784527

99%

master: 100%

Pull #2974

github

Run every endpoint's Rack stack through one shared lambda

The innermost app of an endpoint's Rack stack looks the endpoint up in
the env and runs it, so it closes over nothing -- yet build_stack
allocated a fresh lambda for it on every endpoint.

Hoist it to a single constant. The lambda now answers to the class
rather than to an endpoint, so it reaches the protected #run through
__send__, which leaves the method's visibility, and Grape::Testing's
prepended hook on it, as they were.

Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>

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