Expose proposals for 3rd-party extensions

Signed-off-by: Yan Zhang <[email protected]>

org.eclipse.jdt.ls.core/src/org/eclipse/jdt/ls/core/internal/contentassist/CompletionProposalRequestor.java

@@ -61,6 +61,7 @@ public final class CompletionProposalRequestor extends CompletionRequestor {
 	private CompletionContext context;
 	private boolean isComplete = true;
 	private PreferenceManager preferenceManager;
+	private CompletionProposalReplacementProvider proposalProvider;
 
 	static class ProposalComparator implements Comparator<CompletionProposal> {
 
@@ -141,6 +142,7 @@ public CompletionProposalRequestor(ICompilationUnit aUnit, int offset, Preferenc
 		response.setOffset(offset);
 		fIsTestCodeExcluded = !isTestSource(unit.getJavaProject(), unit);
 		setRequireExtendedContext(true);
+		proposalProvider = new CompletionProposalReplacementProvider(unit, context, offset, preferenceManager.getClientPreferences());
 	}
 
 	private boolean isTestSource(IJavaProject project, ICompilationUnit cu) {
@@ -199,12 +201,10 @@ public List<CompletionItem> getCompletionItems() {
 		CompletionResponses.store(response);
 
 		//Let's compute replacement texts for the most relevant results only
-		CompletionProposalReplacementProvider proposalProvider = new CompletionProposalReplacementProvider(unit, getContext(), response.getOffset(), preferenceManager.getClientPreferences());
 		for (int i = 0; i < limit; i++) {
 			CompletionProposal proposal = proposals.get(i);
 			try {
 				CompletionItem item = toCompletionItem(proposal, i);
-				proposalProvider.updateReplacement(proposal, item, '\0');
 				completionItems.add(item);
 			} catch (Exception e) {
 				JavaLanguageServerPlugin.logException(e.getMessage(), e);
@@ -266,6 +266,7 @@ public CompletionItem toCompletionItem(CompletionProposal proposal, int index) {
 				JavaLanguageServerPlugin.log(e);
 			}
 		}
+		proposalProvider.updateReplacement(proposal, $, '\0');
 		return $;
 	}
 
@@ -381,6 +382,10 @@ public CompletionContext getContext() {
 		return context;
 	}
 
+	public List<CompletionProposal> getProposals() {
+		return proposals;
+	}
+
 	/**
 	 * copied from
 	 * org.eclipse.jdt.ui.text.java.CompletionProposalCollector.isFiltered(CompletionProposal)
@@ -452,4 +457,4 @@ protected final char[] getDeclaringType(CompletionProposal proposal) {
 		}
 	}
 
-}
+}