3137: Do not register all proposed features r=matklad a=kjeremy

Instead only opt-in to CallHierarchy since it has a vscode API but LSP support
is still proposed.

Discovered while working on SemanticTokens which does not have a vscode API
and is still in the proposed state. Somehow enabling it would crash the
language server.

See https://github.com/microsoft/vscode-languageserver-node/issues/572

Co-authored-by: kjeremy <kjeremy@gmail.com>
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bors[bot] 2020-02-14 16:50:06 +00:00 committed by GitHub
commit 7c1fb6caa5
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@ -3,6 +3,7 @@ import * as lc from 'vscode-languageclient';
import { window, workspace } from 'vscode';
import { Config } from './config';
import { ensureLanguageServerBinary } from './installation/language_server';
import { CallHierarchyFeature } from 'vscode-languageclient/lib/callHierarchy.proposed';
export async function createClient(config: Config): Promise<null | lc.LanguageClient> {
// '.' Is the fallback if no folder is open
@ -78,6 +79,10 @@ export async function createClient(config: Config): Promise<null | lc.LanguageCl
}
},
};
res.registerProposedFeatures();
// To turn on all proposed features use: res.registerProposedFeatures();
// Here we want to just enable CallHierarchyFeature since it is available on stable.
// Note that while the CallHierarchyFeature is stable the LSP protocol is not.
res.registerFeature(new CallHierarchyFeature(res));
return res;
}