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Bug 534189 - Do not wait for the editor's shared AST to generate parameter guesses

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We want to hold the index read lock while generating the guesses, but we
don't need an AST; we already have the one built for content assist.

Change-Id: I5a60aaca24ce345f5ae387664e025e6fa39cd9d2
This commit is contained in:
Nathan Ridge 2018-05-01 02:42:19 -04:00
parent 4881a2ecd4
commit 3ad16b909c
1 changed files with 7 additions and 6 deletions
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13
core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/contentassist/ParameterGuessingProposal.java
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@ -45,6 +45,7 @@ import org.eclipse.swt.graphics.Point;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.texteditor.link.EditorLinkedModeUI;
import org.eclipse.cdt.core.dom.ast.IASTCompletionNode;
import org.eclipse.cdt.core.dom.ast.IASTTranslationUnit;
import org.eclipse.cdt.core.dom.ast.IBinding;
import org.eclipse.cdt.core.dom.ast.IFunction;
@ -78,6 +79,7 @@ public class ParameterGuessingProposal extends FunctionCompletionProposal {
private char[][] fParametersNames;
private IType[] fParametersTypes;
private List<IBinding> fAssignableElements;
private IASTCompletionNode fCompletionNode;
public static ParameterGuessingProposal createProposal(CContentAssistInvocationContext context,
List<IBinding> availableElements, CCompletionProposal proposal, IFunction function,
@ -118,7 +120,7 @@ public class ParameterGuessingProposal extends FunctionCompletionProposal {
ParameterGuessingProposal ret = new ParameterGuessingProposal(replacement, replacementOffset,
replacementLength, proposal.getImage(), proposal.getDisplayString(), proposal.getIdString(),
proposal.getRelevance(), context.getViewer(), function, invocationOffset, parseOffset,
context.getTranslationUnit(), document);
context.getTranslationUnit(), document, context.getCompletionNode());
ret.setContextInformation(proposal.getContextInformation());
ret.fFullPrefix = fullPrefix;
ret.fCEditor = getCEditor(context.getEditor());
@ -147,9 +149,10 @@ public class ParameterGuessingProposal extends FunctionCompletionProposal {
public ParameterGuessingProposal(String replacementString, int replacementOffset, int replacementLength,
Image image, String displayString, String idString, int relevance, ITextViewer viewer,
IFunction function, int invocationOffset, int parseOffset, ITranslationUnit tu,
IDocument document) {
IDocument document, IASTCompletionNode completionNode) {
super(replacementString, replacementOffset, replacementLength, image, displayString, idString,
relevance, viewer, function, invocationOffset, parseOffset, tu, document);
fCompletionNode = completionNode;
}
/**
@ -254,14 +257,12 @@ public class ParameterGuessingProposal extends FunctionCompletionProposal {
}
public void generateParameterGuesses() {
IStatus status = ASTProvider.getASTProvider().runOnAST(fTranslationUnit, ASTProvider.WAIT_ACTIVE_ONLY,
IStatus status = ASTProvider.getASTProvider().runOnAST(fTranslationUnit, ASTProvider.WAIT_NO,
new NullProgressMonitor(), new ASTRunnable() {
@Override
public IStatus runOnAST(ILanguage lang, IASTTranslationUnit astRoot) throws CoreException {
if (astRoot == null)
return Status.CANCEL_STATUS;
try {
CPPSemantics.pushLookupPoint(astRoot);
CPPSemantics.pushLookupPoint(fCompletionNode.getTranslationUnit());
guessParameters();
} catch (Exception e) {
CUIPlugin.log(e);