Go Commentary #5: Features, Memory Optimization, Minecraft Server, Code Editor, and LLM Tool

Go Features By Version

Context:
- Go is released every six months.
- Each major Go release is supported until there are two newer major releases.
- Critical problems are fixed by issuing minor revisions.
Solution:

Context:
- Package fieldalignment defines an Analyzer that detects structs that would use less memory if their fields were sorted.
Solution:
- betteralign is fork of fieldalignment with:
  - skips over generated files, either files with known “generated” suffix (_generated.go, _gen.go, .gen.go, .pb.go, .pb.gw.go) or due to package-level comment containing Code generated by… DO NOT EDIT. string,
  - skips over test files (files with _test.go suffix),
  - skips over structs marked with comment betteralign:ignore,
  - doesn’t lose comments (field comments, doc comments, floating comments or otherwise) but the comment position heuristics is still work in progress,
  - does very reliable atomic file I/O with strong promise not to corrupt and/or lose contents upon rewrite (not on Windows platform),
  - has more thorough testing in regards to expected optimised vs golden results,
  - integrates better with environments with restricted CPU and/or memory resources (Docker containers, K8s containers, LXC, LXD etc).

Context:
- Blazingly fast, highly optimized server implementation written in Go for Minecraft 1.21

Auto-indentation of wrapped lines.
No code coloring (except comments and strings).
Many TextArea utilities: undo/redo, replace, comment, …
Handles big files.
Start external processes from the toolbar with a click, capturing the output to a row.
Drag and drop files/directories to the editor.
Detects if files opened are changed outside the editor.
Plugin support
- examples such as gotodefinition and autocomplete below.
Golang specific:
- Calls goimports if available when saving a .go file.
- Clicking on .go files identifiers will jump to the identifier definition (needs gopls).
- Debug utility for go programs (GoDebug cmd).
  - allows to go back and forth in time to consult code values.
Language Server Protocol (LSP) (code analysis):
- -lsproto cmd line option
- basic support for gotodefinition and completion
- mostly being tested with clangd and gopls
Inline complete
- code completion by hitting the tab key (uses LSP).