Bug 559313 - decltype evaluated as a write operation

If a variable is in a decl type specifier can't be evaluated as
written.

Change-Id: If78a567dab99e55c78e16c3b7f10c45bbd0a0606
Signed-off-by: Marco Stornelli <marco.stornelli@gmail.com>

2 files changed, 15 insertions, 0 deletions

diff --git a/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/ast2/VariableReadWriteFlagsTest.java b/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/ast2/VariableReadWriteFlagsTest.java
index 5eb63ee3714..a0111a56922 100644
--- a/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/ast2/VariableReadWriteFlagsTest.java
+++ b/core/org.eclipse.cdt.core.tests/parser/org/eclipse/cdt/core/parser/tests/ast2/VariableReadWriteFlagsTest.java
@@ -245,4 +245,16 @@ public class VariableReadWriteFlagsTest extends AST2TestBase {
 		a.assertReadWriteFlags("a = arr[0];", "arr", READ);
 		a.assertReadWriteFlags("return arr[0];", "arr", READ);
 	}
+
+	//	class Test {
+	//  public:
+	//     int v;
+	//     void test() const {
+	//         decltype(v) o = 14;
+	//     }
+	//  };
+	public void testDeclType() throws Exception {
+		AssertionHelper a = getCPPAssertionHelper();
+		a.assertReadWriteFlags("decltype(v) o = 14;", "v", READ);
+	}
 }
diff --git a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/VariableReadWriteFlags.java b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/VariableReadWriteFlags.java
index a7bc98a9041..1d58c90b89a 100644
--- a/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/VariableReadWriteFlags.java
+++ b/core/org.eclipse.cdt.core/parser/org/eclipse/cdt/internal/core/dom/parser/VariableReadWriteFlags.java
@@ -21,6 +21,7 @@ import org.eclipse.cdt.core.dom.ast.IASTCaseStatement;
 import org.eclipse.cdt.core.dom.ast.IASTCastExpression;
 import org.eclipse.cdt.core.dom.ast.IASTCompoundStatement;
 import org.eclipse.cdt.core.dom.ast.IASTConditionalExpression;
+import org.eclipse.cdt.core.dom.ast.IASTDeclSpecifier;
 import org.eclipse.cdt.core.dom.ast.IASTDeclarator;
 import org.eclipse.cdt.core.dom.ast.IASTDoStatement;
 import org.eclipse.cdt.core.dom.ast.IASTEqualsInitializer;
@@ -81,6 +82,8 @@ public abstract class VariableReadWriteFlags {
 			return READ; // dimension
 		} else if (parent instanceof IASTInitializerList) {
 			return rwInInitializerList((IASTInitializerList) parent, indirection);
+		} else if (parent instanceof IASTDeclSpecifier) {
+			return READ;
 		}
 		return READ | WRITE; // fallback
 	}