| bufio | Package bufio implements buffered I/O. It wraps an io.Reader or io.Writer object, creating another object (Reader or Writer) that also implements the interface but provides buffering and some help for textual I/O. |
| bytes | Package bytes implements functions for the manipulation of byte slices. |
| context | Package context defines the Context type, which carries deadlines, cancellation signals, and other request-scoped values across API boundaries and between processes. |
| crypto/sha256 | Package sha256 implements the SHA224 and SHA256 hash algorithms as defined in FIPS 180-4. |
| fmt | Package fmt implements formatted I/O with functions analogous to C's printf and scanf. |
| golang.org/x/tools/internal/gocommand | Package gocommand is a helper for calling the go command. |
| golang.org/x/tools/internal/jsonrpc2 | Package jsonrpc2 is a minimal implementation of the JSON RPC 2 spec. |
| golang.org/x/tools/internal/lsp/command | |
| golang.org/x/tools/internal/lsp/protocol | |
| golang.org/x/tools/internal/proxydir | Package proxydir provides functions for writing module data to a directory in proxy format, so that it can be used as a module proxy by setting GOPROXY="file://<dir>". |
| golang.org/x/tools/internal/span | |
| golang.org/x/tools/internal/testenv | Package testenv contains helper functions for skipping tests based on which tools are present in the environment. |
| golang.org/x/tools/txtar | Package txtar implements a trivial text-based file archive format. |
| golang.org/x/xerrors | Package xerrors implements functions to manipulate errors. |
| io/ioutil | Package ioutil implements some I/O utility functions. |
| os | Package os provides a platform-independent interface to operating system functionality. |
| path | Package path implements utility routines for manipulating slash-separated paths. |
| path/filepath | Package filepath implements utility routines for manipulating filename paths in a way compatible with the target operating system-defined file paths. |
| regexp | Package regexp implements regular expression search. |
| runtime | Package runtime contains operations that interact with Go's runtime system, such as functions to control goroutines. |
| sort | Package sort provides primitives for sorting slices and user-defined collections. |
| strings | Package strings implements simple functions to manipulate UTF-8 encoded strings. |
| sync | Package sync provides basic synchronization primitives such as mutual exclusion locks. |
| syscall | Package syscall contains an interface to the low-level operating system primitives. |
| time | Package time provides functionality for measuring and displaying time. |