Ambiguity handling for c++ conditions, bug 263158.

1 files changed, 60 insertions, 0 deletions

diff --git a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/CPPASTAmbiguousCondition.java b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/CPPASTAmbiguousCondition.java
new file mode 100644
index 00000000000..49fd7bf2e5b
--- /dev/null
+++ b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/cpp/CPPASTAmbiguousCondition.java
@@ -0,0 +1,60 @@
+/*******************************************************************************
+ * Copyright (c) 2009 Wind River Systems, Inc. and others.
+ * All rights reserved. This program and the accompanying materials
+ * are made available under the terms of the Eclipse Public License v1.0
+ * which accompanies this distribution, and is available at
+ * http://www.eclipse.org/legal/epl-v10.html
+ *
+ * Contributors:
+ *    Markus Schorn - initial API and implementation
+ *******************************************************************************/ 
+package org.eclipse.cdt.internal.core.dom.parser.cpp;
+
+import org.eclipse.cdt.core.dom.ast.IASTDeclaration;
+import org.eclipse.cdt.core.dom.ast.IASTExpression;
+import org.eclipse.cdt.core.dom.ast.IASTNode;
+import org.eclipse.cdt.core.dom.ast.IASTSimpleDeclaration;
+import org.eclipse.cdt.core.dom.ast.IScope;
+import org.eclipse.cdt.core.dom.ast.IType;
+import org.eclipse.cdt.internal.core.dom.parser.ASTAmbiguousNode;
+import org.eclipse.cdt.internal.core.dom.parser.cpp.semantics.CPPVisitor;
+
+/**
+ * Handles ambiguity between expression and declaration in a condition.
+ */
+public class CPPASTAmbiguousCondition extends ASTAmbiguousNode implements IASTAmbiguousCondition {
+	private IASTExpression fExpression;
+	private IASTDeclaration fDeclaration;
+
+	public CPPASTAmbiguousCondition(IASTExpression expression, IASTSimpleDeclaration declaration) {
+		fExpression= expression;
+		fDeclaration= declaration;
+		
+		expression.setParent(this);
+		expression.setPropertyInParent(SUBCONDITION);
+		declaration.setParent(this);
+		declaration.setPropertyInParent(SUBCONDITION);
+	}
+
+	@Override
+	public IASTNode[] getNodes() {
+		return new IASTNode[] {fExpression, fDeclaration};
+	}
+	
+	@Override
+	protected void beforeResolution() {
+		// populate containing scope, so that it will not be affected by the alternative branches.
+		IScope scope= CPPVisitor.getContainingScope(this);
+		if (scope instanceof ICPPASTInternalScope) {
+			((ICPPASTInternalScope) scope).populateCache();
+		}
+	}
+
+	public IASTExpression copy() {
+		throw new UnsupportedOperationException();
+	}
+
+	public IType getExpressionType() {
+		return null;
+	}
+}