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Add docs for colorDiagnosticOutput capability

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Ian Chamberlain 2023-01-09 11:44:38 -05:00
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docs/dev/lsp-extensions.md
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@ -792,3 +792,29 @@ export interface ClientCommandOptions {
commands: string[];
}
```
## Colored Diagnostic Output
**Experimental Client Capability:** `{ "colorDiagnosticOutput": boolean }`
If this capability is set, the "full compiler diagnostics" provided by `checkOnSave`
will include ANSI color and style codes to render the diagnostic in a similar manner
as `cargo`. This is translated into `--message-format=json-diagnostic-rendered-ansi`
when flycheck is run, instead of the default `--message-format=json`.
The full compiler rendered diagnostics are included in the server response
regardless of this capability:
```typescript
// https://microsoft.github.io/language-server-protocol/specifications/specification-current#diagnostic
export interface Diagnostic {
...
data?: {
/**
* The human-readable compiler output as it would be printed to a terminal.
* Includes ANSI color and style codes if the client has set the experimental
* `colorDiagnosticOutput` capability.
*/
rendered?: string;
};
}