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Make the client capability checking more explicit.

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This commit is contained in:
Dirk Baeumer
2017-11-06 11:05:19 +01:00
parent 1ba6704d0c
commit 52a8a79ca0
1 changed files with 6 additions and 10 deletions
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16
lsp-multi-root-sample/server/src/server.ts
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@ -6,7 +6,7 @@
import {
createConnection, TextDocuments, TextDocument, Diagnostic, DiagnosticSeverity,
ProposedFeatures, InitializeParams
ProposedFeatures, InitializeParams, Proposed
} from 'vscode-languageserver';
// Create a connection for the server. The connection uses Node's IPC as a transport
@ -20,17 +20,13 @@ let hasConfigurationCapability = false;
let hasWorkspaceFolderCapability = false;
connection.onInitialize((params: InitializeParams) => {
function hasClientCapability(...keys: string[]) {
let c = <any>params.capabilities;
for (let i = 0; c && i < keys.length; i++) {
c = c[keys[i]];
}
return !!c;
}
let capabilities = params.capabilities;
// Does the client support the `workspace/configuration` request?
// If not, we will fall back using global settings
hasConfigurationCapability = hasClientCapability('workspace', 'configuration');
hasWorkspaceFolderCapability = hasClientCapability('workspace', 'workspaceFolders');
hasWorkspaceFolderCapability = (capabilities as Proposed.WorkspaceFoldersClientCapabilities).workspace && (capabilities as Proposed.WorkspaceFoldersClientCapabilities).workspace.workspaceFolders;
hasConfigurationCapability = (capabilities as Proposed.ConfigurationClientCapabilities).workspace && (capabilities as Proposed.ConfigurationClientCapabilities).workspace.configuration;
return {
capabilities: {
textDocumentSync: documents.syncKind