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Bug 486683 - Highlighting for context-sensitive keyword inside macro expansion

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Change-Id: I28c729dffcffd6a69f4adcc94d22d789ebb00b11
This commit is contained in:
Nathan Ridge 2016-01-30 01:31:12 -05:00
parent a201468432
commit 93af811c6d
2 changed files with 45 additions and 25 deletions
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18
core/org.eclipse.cdt.ui.tests/ui/org/eclipse/cdt/ui/tests/text/SemanticHighlightingTest.java
View file

@ -516,4 +516,22 @@ public class SemanticHighlightingTest extends TestCase {
public void testMethodNameInsideMacro_486682() throws Exception {
makeAssertions();
}
// #define WALDO(name) const char* Name() override { return name; } //$macroDefinition
// class S { //$class
// WALDO("name") //$macroSubstitution
// };
public void testOverrideInMacroExpansion_486683a() throws Exception {
// This tests that the 'override' does not cause the entire invocation
// to be colored with the keyword highlighting.
makeAssertions();
}
// #define MIRROR(arg) arg //$macroDefinition
// MIRROR(class S { void foo() override; }) //$macroSubstitution,class,methodDeclaration,c_keyword
public void testOverrideInMacroExpansion_486683b() throws Exception {
// This tests that the 'override' *does* cause the 'override' keyword
// in the argument to be colored with the keyword highlighting.
makeAssertions();
}
}

52
core/org.eclipse.cdt.ui/src/org/eclipse/cdt/internal/ui/editor/SemanticHighlightingReconciler.java
View file

@ -47,6 +47,7 @@ import org.eclipse.cdt.core.model.ICElement;
import org.eclipse.cdt.core.model.ILanguage;
import org.eclipse.cdt.ui.CUIPlugin;
import org.eclipse.cdt.internal.core.dom.parser.ASTNode;
import org.eclipse.cdt.internal.core.model.ASTCache;
import org.eclipse.cdt.internal.ui.editor.SemanticHighlightingManager.HighlightedPosition;
@ -179,10 +180,9 @@ public class SemanticHighlightingReconciler implements ICReconcilingListener {
for (int i= 0, n= fJobSemanticHighlightings.length; i < n; ++i) {
SemanticHighlighting semanticHighlighting= fJobSemanticHighlightings[i];
if (fJobHighlightings[i].isEnabled() && semanticHighlighting.consumes(fToken)) {
if (node instanceof IASTName) {
addNameLocation((IASTName) node, fJobHighlightings[i]);
} else {
addNodeLocation(node.getFileLocation(), fJobHighlightings[i]);
IASTNodeLocation location = getLocationToHighlight(node);
if (location != null) {
highlightLocation(location, fJobHighlightings[i]);
}
consumed= true;
break;
@ -193,40 +193,42 @@ public class SemanticHighlightingReconciler implements ICReconcilingListener {
}
/**
* Add the a location range for the given name.
* Gets the location to highlight for a given node.
*
* @param name The name
* @param highlighting The highlighting
* @param node the node
*/
private void addNameLocation(IASTName name, HighlightingStyle highlightingStyle) {
IASTImageLocation imageLocation= name.getImageLocation();
private IASTNodeLocation getLocationToHighlight(IASTNode node) {
IASTImageLocation imageLocation = null;
if (node instanceof IASTName) {
imageLocation = ((IASTName) node).getImageLocation();
} else if (node instanceof ASTNode) {
// Non-names can still have image locations, they're just not exposed in IASTNode.
imageLocation = ((ASTNode) node).getImageLocation();
}
if (imageLocation != null) {
if (imageLocation.getLocationKind() != IASTImageLocation.MACRO_DEFINITION) {
int offset= imageLocation.getNodeOffset();
int length= imageLocation.getNodeLength();
if (offset >= 0 && length > 0) {
addPosition(offset, length, highlightingStyle);
}
return imageLocation;
}
} else {
// Fallback in case no image location available.
IASTNodeLocation[] nodeLocations= name.getNodeLocations();
if (nodeLocations.length == 1 && !(nodeLocations[0] instanceof IASTMacroExpansionLocation)) {
addNodeLocation(nodeLocations[0], highlightingStyle);
IASTNodeLocation[] nodeLocations= node.getNodeLocations();
if (nodeLocations.length == 1) {
IASTNodeLocation nodeLocation = nodeLocations[0];
if (!(nodeLocation instanceof IASTMacroExpansionLocation)) {
return nodeLocation;
}
}
}
return null;
}
/**
* Adds the a location range for the given highlighting.
* Highlights the given node location with the given highlighting.
*
* @param nodeLocation The node location
* @param highlighting The highlighting
* @param nodeLocation the node location to highlight
* @param highlightingStyle the highlighting style to apply
*/
private void addNodeLocation(IASTNodeLocation nodeLocation, HighlightingStyle highlightingStyle) {
if (nodeLocation == null) {
return;
}
private void highlightLocation(IASTNodeLocation nodeLocation, HighlightingStyle highlightingStyle) {
int offset= nodeLocation.getNodeOffset();
int length= nodeLocation.getNodeLength();
if (offset > -1 && length > 0) {