Go Postfix Completion

A Visual Studio Code extension that provides postfix completion for the Go language. Definitions are managed in an external JSON file and can be edited via a Webview UI.

Features

• Postfix completion for Go files (e.g. a.ap expands to a = append(a, ))
• All postfix definitions are managed in .vscode/gopostfix.json in your workspace
• Edit definitions with a user-friendly Webview editor (command: "Go Postfix Definition Editor")
• Right-click gopostfix.json in the file explorer to open the editor
• Changes are immediately reflected in completion suggestions

Usage

1. Open a Go file and type a dot (.) followed by a defined postfix (e.g. ap, flen, etc.) to trigger completion
2. To edit postfix definitions, run the command "Go Postfix Definition Editor" from the Command Palette or right-click gopostfix.json in the explorer
3. Add, edit, or delete definitions in the Webview and click Save

Definition File Example (.vscode/gopostfix.json)

[
  {
    "postfix": "ap",
    "description": "append",
    "template": "${expr} = append(${expr}, )"
  },
  {
    "postfix": "flen",
    "description": "for len loop",
    "template": "for i:=0;i<len(${expr});i++"
  },
  {
    "postfix": "nil",
    "description": "nil check",
    "template": "if ${expr} == nil {}"
  },
  {
    "postfix": "err",
    "description": "error check",
    "template": "if err := ${expr}; err != nil {\n\treturn err\n}"
  }
]

Requirements

• VS Code 1.70 or later
• Go extension for VS Code (recommended)

Known Issues

• Only one workspace folder is supported for definition file location
• The extension only works with Go files (.go)

Release Notes

0.1.0

• Initial release: Go postfix completion, external definition file, Webview editor

Enjoy Go Postfix Completion!