fastpath

Documentation

Overview

Package fastpath holds dispatch sentinel errors shared between the opentile root and format-specific readers. The sentinels signal "this reader does not implement the requested fast path; use the slow path instead" without growing the public opentile API.

This package has no other purpose. Adding new exported symbols here is reserved for additional fast-path dispatch in future milestones.

Index

• Variables

Variables

var ErrUnsupported = errors.New("opentile: fast path unsupported, fall back to slow path")

ErrUnsupported is returned by a format reader's fast-path method (e.g., ImageDecodedTile on the ndpi tiler) when the reader cannot handle the requested operation via the fast path and the caller should fall through to the slow path. NOT an error condition — the caller treats this sentinel as a signal, not as a failure.

Use errors.Is to detect; do not compare with ==.