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Code Issues Wiki Activity

Related to 219834: Avoid parsing in hovers

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This commit is contained in:
Anton Leherbauer 2008-02-22 14:01:04 +00:00
parent 357090a722
commit 5f9327914d
1 changed files with 26 additions and 7 deletions
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33
core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/text/c/hover/CMacroExpansionInput.java
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@ -50,6 +50,7 @@ import org.eclipse.cdt.ui.IWorkingCopyManager;
import org.eclipse.cdt.internal.core.model.ASTCache.ASTRunnable;
import org.eclipse.cdt.internal.ui.editor.ASTProvider;
import org.eclipse.cdt.internal.ui.editor.ASTProvider.WAIT_FLAG;
import org.eclipse.cdt.internal.ui.text.CHeuristicScanner;
/**
@ -137,7 +138,7 @@ public class CMacroExpansionInput {
private final Position fTextRegion;
private final boolean fAllowSelection;
private IASTNode fEnclosingNode;
private List fExpansionNodes= new ArrayList();
private List<IASTNode> fExpansionNodes= new ArrayList<IASTNode>();
private MacroExpansionExplorer fExplorer;
private IRegion fExpansionRegion;
@ -221,7 +222,7 @@ public class CMacroExpansionInput {
if (node == other) {
return other;
}
List ancestors= new ArrayList();
List<IASTNode> ancestors= new ArrayList<IASTNode>();
while (node != null) {
node= node.getParent();
ancestors.add(node);
@ -241,8 +242,8 @@ public class CMacroExpansionInput {
if (fEnclosingNode != null) {
int startOffset= Integer.MAX_VALUE;
int endOffset= fTextRegion.getOffset() + fTextRegion.getLength();
for (Iterator it= fExpansionNodes.iterator(); it.hasNext(); ) {
IASTNode node= (IASTNode) it.next();
for (Iterator<IASTNode> it= fExpansionNodes.iterator(); it.hasNext(); ) {
IASTNode node= it.next();
if (node != fEnclosingNode) {
while (node != null && node.getParent() != fEnclosingNode) {
node= node.getParent();
@ -282,7 +283,15 @@ public class CMacroExpansionInput {
// forbidden
}
public static CMacroExpansionInput create(IEditorPart editor, IRegion hoverRegion, boolean allowSelection) {
/**
* Creates an input object for the macro expansion exploration control {@link CMacroExpansionExplorationControl}.
*
* @param editor the active editor
* @param textRegion the text region where to consider macro expansions
* @param force force computation of the input, if <code>true</code> this may trigger a parse
* @return an instance of {@link CMacroExpansionInput} or <code>null</code> if no macro was found in the region
*/
public static CMacroExpansionInput create(IEditorPart editor, IRegion textRegion, boolean force) {
if (editor == null || !(editor instanceof ITextEditor)) {
return null;
}
@ -294,8 +303,9 @@ public class CMacroExpansionInput {
}
IProgressMonitor monitor= new NullProgressMonitor();
ExpansionRegionComputer computer= new ExpansionRegionComputer(tu, hoverRegion, allowSelection);
IStatus status= ASTProvider.getASTProvider().runOnAST(tu, ASTProvider.WAIT_ACTIVE_ONLY, monitor, computer);
ExpansionRegionComputer computer= new ExpansionRegionComputer(tu, textRegion, force);
final WAIT_FLAG waitFlag = force ? ASTProvider.WAIT_ACTIVE_ONLY : ASTProvider.WAIT_NO;
IStatus status= ASTProvider.getASTProvider().runOnAST(tu, waitFlag, monitor, computer);
if (!status.isOK()) {
return null;
}
@ -318,6 +328,15 @@ public class CMacroExpansionInput {
return input;
}
/**
* Expand the given text region to span complete lines of the document and
* add a number of lines before and after the region.
*
* @param region the text region
* @param document the underlying text document
* @param contextLines the number of lines to add
* @return an extended region
*/
public static final IRegion expandRegion(IRegion region, IDocument document, int contextLines) {
try {
int start= document.getLineOfOffset(region.getOffset());