Coi Language for VS Code

Language support for Coi: syntax highlighting, completions, hovers, signature help, and formatting.

What you get

• Full syntax highlighting for .coi (including view, style, init, mount, tick, test blocks and expect)
• A Name.test.coi test file gets its own icon, a flask behind the wordmark
• Automatic .d.coi definition discovery via coi --defs-path (or set coi.definitionsPath manually)
• Completions for platform APIs, keywords, core types, and common methods
• Hover + signature help for function calls and framework APIs
• Built-in document formatter for consistent spacing and indentation

Settings

Setting	Default	Description
coi.definitionsPath	""	Path to .d.coi definitions. Empty = auto-detect via coi --defs-path.
coi.format.enable	true	Enable COI document formatting.

A module's tests fold under it in the Explorer (Merge.test.coi under Merge.coi): the extension adds that nesting rule for .coi files. VS Code applies nesting rules only with file nesting on, and opens the groups unless told otherwise, so in your settings:

"explorer.fileNesting.enabled": true,
"explorer.fileNesting.expand": false

Format document

• Shortcut: Shift+Alt+F (Windows/Linux) or Shift+Option+F (macOS)
• Command Palette: Format Document
• Context menu: Format Document