refact: small refactor to improve code reuse

rubenporras · Aug 26, 2024 · 0cc63da · 0cc63da
1 parent 2d89929
commit 0cc63da
Showing 1 changed file with 22 additions and 26 deletions.
diff --git a/org.eclipse.lsp4e/src/org/eclipse/lsp4e/operations/completion/LSContentAssistProcessor.java b/org.eclipse.lsp4e/src/org/eclipse/lsp4e/operations/completion/LSContentAssistProcessor.java
@@ -54,9 +54,7 @@
 import org.eclipse.lsp4j.CompletionItem;
 import org.eclipse.lsp4j.CompletionItemDefaults;
 import org.eclipse.lsp4j.CompletionList;
-import org.eclipse.lsp4j.CompletionOptions;
 import org.eclipse.lsp4j.CompletionParams;
-import org.eclipse.lsp4j.SignatureHelpOptions;
 import org.eclipse.lsp4j.SignatureHelpParams;
 import org.eclipse.lsp4j.SignatureInformation;
 import org.eclipse.lsp4j.jsonrpc.CancelChecker;
@@ -216,40 +214,28 @@ private String createErrorMessage(int offset, Exception ex) {
 
 	private void initiateLanguageServers(IDocument document) {
 		if (currentDocument != document) {
-			this.currentDocument = document;
-			if (this.completionLanguageServersFuture != null) {
-				try {
-					this.completionLanguageServersFuture.cancel(true);
-				} catch (CancellationException ex) {
-					// nothing
-				}
-			}
-			if (this.contextInformationLanguageServersFuture != null) {
-				try {
-					this.contextInformationLanguageServersFuture.cancel(true);
-				} catch (CancellationException ex) {
-					// nothing
-				}
-			}
-			this.completionTriggerChars = NO_CHARS;
-			this.contextTriggerChars = NO_CHARS;
+			currentDocument = document;
+			cancelFuture(completionLanguageServersFuture);
+			cancelFuture(contextInformationLanguageServersFuture);
 
-			this.completionLanguageServersFuture = LanguageServers.forDocument(document)
+			completionTriggerChars = NO_CHARS;
+			contextTriggerChars = NO_CHARS;
+
+			completionLanguageServersFuture = LanguageServers.forDocument(document)
 					.withFilter(capabilities -> capabilities.getCompletionProvider() != null) //
 					.collectAll((w, ls) -> {
-						CompletionOptions provider = castNonNull(w.getServerCapabilities()).getCompletionProvider();
+						List<String> triggerChars = castNonNull(w.getServerCapabilities()).getCompletionProvider().getTriggerCharacters();
 						synchronized (completionTriggerCharsSemaphore) {
-							completionTriggerChars = mergeTriggers(completionTriggerChars,
-									provider.getTriggerCharacters());
+							completionTriggerChars = mergeTriggers(completionTriggerChars,triggerChars);
 						}
 						return CompletableFuture.completedFuture(null);
 					});
-			this.contextInformationLanguageServersFuture = LanguageServers.forDocument(document)
+			contextInformationLanguageServersFuture = LanguageServers.forDocument(document)
 					.withFilter(capabilities -> capabilities.getSignatureHelpProvider() != null) //
 					.collectAll((w, ls) -> {
-						SignatureHelpOptions provider = castNonNull(w.getServerCapabilities()).getSignatureHelpProvider();
+						List<String> triggerChars = castNonNull(w.getServerCapabilities()).getSignatureHelpProvider().getTriggerCharacters();
 						synchronized (contextTriggerCharsSemaphore) {
-							contextTriggerChars = mergeTriggers(contextTriggerChars, provider.getTriggerCharacters());
+							contextTriggerChars = mergeTriggers(contextTriggerChars, triggerChars);
 						}
 						return CompletableFuture.completedFuture(null);
 					});
@@ -341,6 +327,16 @@ private static IContextInformation toContextInformation(SignatureInformation inf
 		return new ContextInformation(information.getLabel(), signature.toString());
 	}
 
+	private void cancelFuture(@Nullable CompletableFuture<List<Void>> future) {
+		if (future != null) {
+			try {
+				future.cancel(true);
+			} catch (CancellationException ex) {
+				// nothing
+			}
+		}
+	}
+
 	private void getFuture(@Nullable CompletableFuture<List<Void>> future) {
 		if (future == null) {
 			return;