jdk/src/jdk.rmic/share/classes/sun/tools/tree/BitNotExpression.java
changeset 25859 3317bb8137f4
parent 25522 10d789df41bb
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/jdk.rmic/share/classes/sun/tools/tree/BitNotExpression.java	Sun Aug 17 15:54:13 2014 +0100
@@ -0,0 +1,90 @@
+/*
+ * Copyright (c) 1994, 2003, Oracle and/or its affiliates. All rights reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation.  Oracle designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+package sun.tools.tree;
+
+import sun.tools.java.*;
+import sun.tools.asm.Assembler;
+
+/**
+ * WARNING: The contents of this source file are not part of any
+ * supported API.  Code that depends on them does so at its own risk:
+ * they are subject to change or removal without notice.
+ */
+public
+class BitNotExpression extends UnaryExpression {
+    /**
+     * Constructor
+     */
+    public BitNotExpression(long where, Expression right) {
+        super(BITNOT, where, right.type, right);
+    }
+
+    /**
+     * Select the type of the expression
+     */
+    void selectType(Environment env, Context ctx, int tm) {
+        if ((tm & TM_LONG) != 0) {
+            type = Type.tLong;
+        } else {
+            type = Type.tInt;
+        }
+        right = convert(env, ctx, type, right);
+    }
+
+    /**
+     * Evaluate
+     */
+    Expression eval(int a) {
+        return new IntExpression(where, ~a);
+    }
+    Expression eval(long a) {
+        return new LongExpression(where, ~a);
+    }
+
+    /**
+     * Simplify
+     */
+    Expression simplify() {
+        if (right.op == BITNOT) {
+            return ((BitNotExpression)right).right;
+        }
+        return this;
+    }
+
+    /**
+     * Code
+     */
+    public void codeValue(Environment env, Context ctx, Assembler asm) {
+        right.codeValue(env, ctx, asm);
+        if (type.isType(TC_INT)) {
+            asm.add(where, opc_ldc, -1);
+            asm.add(where, opc_ixor);
+        } else {
+            asm.add(where, opc_ldc2_w, -1L);
+            asm.add(where, opc_lxor);
+        }
+    }
+}