1 files changed, 60 insertions, 0 deletions
diff --git a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/core/parser/util/AttributeUtil.java b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/core/parser/util/AttributeUtil.java
new file mode 100644
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+++ b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/core/parser/util/AttributeUtil.java
@@ -0,0 +1,60 @@
+/*******************************************************************************
+ * Copyright (c) 2012 Google, 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:
+ * 	   Sergey Prigogin (Google) - initial API and implementation
+ *******************************************************************************/
+package org.eclipse.cdt.core.parser.util;
+
+import org.eclipse.cdt.core.dom.ast.IASTAttribute;
+import org.eclipse.cdt.core.dom.ast.IASTAttributeOwner;
+import org.eclipse.cdt.core.dom.ast.IASTToken;
+
+/**
+ * Collection of static methods for dealing with attributes.
+ * @see org.eclipse.cdt.core.dom.ast.IASTAttribute
+ * @see org.eclipse.cdt.core.dom.ast.IASTAttributeOwner
+ * @since 5.4
+ */
+public class AttributeUtil {
+	private static final String[] ATTRIBUTE_NORETURN = new String[] { "__noreturn__", "noreturn" };  //$NON-NLS-1$//$NON-NLS-2$
+
+	// Not instantiatable.
+	private AttributeUtil() {}
+
+	/**
+	 * Returns {@code true} if a declarator has an attribute with one of the given names.
+	 * The {@code names} array is assumed to be small. 
+	 */
+	public static boolean hasAttribute(IASTAttributeOwner node, String[] names) {
+	    IASTAttribute[] attributes = node.getAttributes();
+		for (IASTAttribute attribute : attributes) {
+			char[] name = attribute.getName();
+			for (int i = 0; i < names.length; i++) {
+				if (CharArrayUtils.equals(name, names[i]))
+					return true;
+			}
+		}
+		return false;
+	}
+
+	/**
+	 * Returns {@code true} if the node has a "noreturn" or "__noreturn__" attribute.
+	 */
+	public static boolean hasNoreturnAttribute(IASTAttributeOwner node) {
+		return hasAttribute(node, ATTRIBUTE_NORETURN);
+	}
+
+	/**
+	 * Returns character representation of the attribute argument, or {@code null} if the attribute
+	 * has zero or more than one argument.
+	 */
+	public static char[] getSimpleArgument(IASTAttribute attribute) {
+		IASTToken argumentClause = attribute.getArgumentClause();
+		return argumentClause == null ? null : argumentClause.getTokenCharImage();
+	}
+}