Shape Language — VS Code extension

Editor integration for the Shape statically-typed programming language. Provides:

Syntax highlighting (TextMate grammar)
Language Server Protocol client wired to shape-lsp
File-icon + language-configuration (comments, brackets, autoclosing, indent rules)

What you get from the LSP

The extension advertises the full set of capabilities exposed by shape-lsp (source). The capability matrix is the authoritative spec; this README is a quick subset:

Feature	Method
Hover	`textDocument/hover`
Completions (lazy resolve)	`textDocument/completion`
Signature help	`textDocument/signatureHelp`
Go-to-definition / declaration / type-definition / implementation	`textDocument/definition`, `declaration`, `typeDefinition`, `implementation`
Find references / highlight	`textDocument/references`, `documentHighlight`
Rename (with prepare)	`textDocument/prepareRename`, `rename`
Document & workspace symbols	`textDocument/documentSymbol`, `workspace/symbol`
Diagnostics (push + pull)	`textDocument/publishDiagnostics`, `textDocument/diagnostic`, `workspace/diagnostic`
Code actions, code lens	`textDocument/codeAction`, `codeLens`
Inlay hints (opt-in categories below)	`textDocument/inlayHint`
Semantic tokens (range + delta)	`textDocument/semanticTokens/*`
Folding, document links, call hierarchy	`textDocument/foldingRange`, `documentLink`, `prepareCallHierarchy`
Formatting (document, range, on-type)	`textDocument/formatting`, `rangeFormatting`, `onTypeFormatting`
Workspace `willRename` for `.shape` files	`workspace/willRenameFiles`

Installing the language server

The extension launches shape-lsp from your PATH. On first activation, if shape-lsp is missing, the extension offers to install it via cargo install shape-lsp. You can also install it yourself:

cargo install shape-lsp

When a newer version is available on crates.io, the extension surfaces a notification and offers an in-place cargo install update.

Settings

All settings live under the shape.* namespace and are forwarded to the language server via initializationOptions (on first contact) and workspace/didChangeConfiguration (live updates). The inlay-hint master is ON by default; Shape-unique opt-in categories are OFF by default per the standing pattern (2026-05-26 binding).

Setting	Default	Description
`shape.inlayHints.enable`	`true`	Master toggle. False suppresses every category.
`shape.inlayHints.typeHints`	`true`	Inferred type hints on `let` bindings.
`shape.inlayHints.parameterHints`	`true`	Parameter-name hints at call sites.
`shape.inlayHints.variableTypeHints`	`true`	Inferred variable types where elided.
`shape.inlayHints.returnTypeHints`	`true`	Inferred return-type hints on `fn` declarations.
`shape.inlayHints.chainHints`	`true`	Intermediate-type hints on method-chain expressions.
`shape.inlayHints.bindingStorageClass.enable`	`false` (opt-in)	Shape-unique: LSP-side approximation of `BindingStorageClass` (`Direct` / `UniqueHeap` / `SharedCow` / `SharedAtomic` / `SharedAtomicMut` per ADR-006). Always rendered with `[… approx]` because the authoritative classifier lives in the bytecode compiler.

Building from source

cd editors/vscode
npm install
npm run compile        # tsc -> out/extension.js
npm run package        # vsce package -> shape-lang-<version>.vsix

Then Extensions: Install from VSIX… in VS Code, pointing at the produced .vsix.

License

MIT.