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typecheck_and_error

Note

This is a point-in-time snapshot of the API documentation from January 2026. Going forward, we will not be maintaining a public copy of these references, and recommend users to refer to the built-in signature helpers available in the Hack LSP instead for complete and up-to-date information.

This is deliberately an unconfigurable convenience wrapper

namespace HH\Client;

function typecheck_and_error(): void;

If you want full configurability, call typecheck() and use the TypecheckResult yourself.

Returns​

  • void