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Bugfix for #2453: NPE in BarContentAssistProcessor. #2484

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Original file line number Diff line number Diff line change
Expand Up @@ -2,7 +2,7 @@ Manifest-Version: 1.0
Bundle-ManifestVersion: 2
Bundle-Name: %Plugin.name
Bundle-SymbolicName: org.eclipse.ui.genericeditor.tests;singleton:=true
Bundle-Version: 1.3.500.qualifier
Bundle-Version: 1.3.600.qualifier
Bundle-Vendor: %Plugin.providerName
Bundle-Localization: plugin
Export-Package: org.eclipse.ui.genericeditor.tests,
Expand Down
Original file line number Diff line number Diff line change
Expand Up @@ -42,11 +42,15 @@ public BarContentAssistProcessor(String completeString) {

@Override
public ICompletionProposal[] computeCompletionProposals(ITextViewer viewer, int offset) {
for (int offsetInProposal = Math.min(this.completeString.length(), viewer.getDocument().getLength()); offsetInProposal > 0; offsetInProposal--) {
final IDocument doc= viewer.getDocument();
if (doc == null) {
return new ICompletionProposal[0];
}
for (int offsetInProposal = Math.min(this.completeString.length(), doc.getLength()); offsetInProposal > 0; offsetInProposal--) {
String maybeMatchingString = this.completeString.substring(0, offsetInProposal);
try {
int lastIndex = offset - offsetInProposal + this.completeString.length();
if (offset >= offsetInProposal && viewer.getDocument().get(offset - offsetInProposal, maybeMatchingString.length()).equals(maybeMatchingString)) {
if (offset >= offsetInProposal && doc.get(offset - offsetInProposal, maybeMatchingString.length()).equals(maybeMatchingString)) {
CompletionProposal proposal = new CompletionProposal(this.completeString.substring(offsetInProposal), offset, 0, lastIndex);
return new ICompletionProposal[] { proposal };
}
Expand Down Expand Up @@ -98,13 +102,13 @@ public IContextInformationValidator getContextInformationValidator() {
return new IContextInformationValidator() {
private ITextViewer viewer;
private int offset;

@Override
public void install(IContextInformation info, ITextViewer infoViewer, int documentOffset) {
this.viewer= infoViewer;
this.offset= documentOffset;
}

@Override
public boolean isContextInformationValid(int offsetToTest) {
try {
Expand All @@ -123,5 +127,4 @@ public boolean isContextInformationValid(int offsetToTest) {
public String getErrorMessage() {
return null;
}

}
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