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35 lines
1.0 KiB
Markdown
35 lines
1.0 KiB
Markdown
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# LSP Extensions
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This document describes LSP extensions used by rust-analyzer.
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It's a best effort document, when in doubt, consult the source (and send a PR with clarification ;-) ).
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We aim to upstream all non Rust-specific extensions to the protocol, but this is not a top priority.
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All capabilities are enabled via `experimental` field of `ClientCapabilities`.
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## `SnippetTextEdit`
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**Capability**
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```typescript
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{
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"snippetTextEdit": boolean
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}
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```
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If this capability is set, `WorkspaceEdit`s returned from `codeAction` requests might contain `SnippetTextEdit`s instead of usual `TextEdit`s:
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```typescript
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interface SnippetTextEdit extends TextEdit {
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insertTextFormat?: InsertTextFormat;
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}
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```
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```typescript
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export interface TextDocumentEdit {
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textDocument: VersionedTextDocumentIdentifier;
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edits: (TextEdit | SnippetTextEdit)[];
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}
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```
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When applying such code action, the editor should insert snippet, with tab stops and placeholder.
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At the moment, rust-analyzer guarantees that only a single edit will have `InsertTextFormat.Snippet`.
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