Package astutil provides various AST utility functions for gopls.

Package browser provides utilities for interacting with users' browsers.

Package bug provides utilities for reporting internal bugs, and being notified when they occur.

Package constraints defines a set of useful constraints to be used with type parameters.

Package frob is a fast restricted object encoder/decoder in the spirit of encoding/gob.

Package goversions defines gopls's policy for which versions of Go it supports.

The immutable package defines immutable wrappers around common data structures.

The lru package implements a fixed-size in-memory LRU cache.

The persistent package defines various persistent data structures; that is, data structures that can be efficiently copied and modified in sublinear time.

Package safetoken provides wrappers around methods in go/token, that return errors rather than panicking.