author | mkos |
Sun, 30 Dec 2012 00:00:00 +0100 | |
changeset 22678 | ac1ea46be942 |
parent 12009 | 4abb694f273a |
permissions | -rw-r--r-- |
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/* |
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8029237: Update copyright year to match last edit in jaxws repository for 2012
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* Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package com.sun.codemodel.internal; |
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/** |
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* JClass for generating expressions containing operators |
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*/ |
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abstract public class JOp { |
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private JOp() { |
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} |
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/** |
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* Determine whether the top level of an expression involves an |
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* operator. |
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*/ |
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static boolean hasTopOp(JExpression e) { |
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return (e instanceof UnaryOp) || (e instanceof BinaryOp); |
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} |
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/* -- Unary operators -- */ |
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static private class UnaryOp extends JExpressionImpl { |
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protected String op; |
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protected JExpression e; |
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protected boolean opFirst = true; |
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UnaryOp(String op, JExpression e) { |
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this.op = op; |
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this.e = e; |
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} |
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UnaryOp(JExpression e, String op) { |
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this.op = op; |
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this.e = e; |
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opFirst = false; |
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} |
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public void generate(JFormatter f) { |
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if (opFirst) |
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f.p('(').p(op).g(e).p(')'); |
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else |
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f.p('(').g(e).p(op).p(')'); |
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} |
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} |
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public static JExpression minus(JExpression e) { |
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return new UnaryOp("-", e); |
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} |
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/** |
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* Logical not <tt>'!x'</tt>. |
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*/ |
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public static JExpression not(JExpression e) { |
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if (e == JExpr.TRUE) return JExpr.FALSE; |
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if (e == JExpr.FALSE) return JExpr.TRUE; |
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return new UnaryOp("!", e); |
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} |
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public static JExpression complement(JExpression e) { |
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return new UnaryOp("~", e); |
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} |
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static private class TightUnaryOp extends UnaryOp { |
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TightUnaryOp(JExpression e, String op) { |
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super(e, op); |
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} |
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public void generate(JFormatter f) { |
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if (opFirst) |
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f.p(op).g(e); |
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else |
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f.g(e).p(op); |
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} |
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} |
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public static JExpression incr(JExpression e) { |
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return new TightUnaryOp(e, "++"); |
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} |
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public static JExpression decr(JExpression e) { |
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return new TightUnaryOp(e, "--"); |
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} |
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/* -- Binary operators -- */ |
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static private class BinaryOp extends JExpressionImpl { |
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String op; |
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JExpression left; |
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JGenerable right; |
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BinaryOp(String op, JExpression left, JGenerable right) { |
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this.left = left; |
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this.op = op; |
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this.right = right; |
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} |
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public void generate(JFormatter f) { |
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f.p('(').g(left).p(op).g(right).p(')'); |
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} |
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} |
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public static JExpression plus(JExpression left, JExpression right) { |
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return new BinaryOp("+", left, right); |
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} |
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public static JExpression minus(JExpression left, JExpression right) { |
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return new BinaryOp("-", left, right); |
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} |
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public static JExpression mul(JExpression left, JExpression right) { |
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return new BinaryOp("*", left, right); |
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} |
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public static JExpression div(JExpression left, JExpression right) { |
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return new BinaryOp("/", left, right); |
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} |
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public static JExpression mod(JExpression left, JExpression right) { |
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return new BinaryOp("%", left, right); |
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} |
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public static JExpression shl(JExpression left, JExpression right) { |
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return new BinaryOp("<<", left, right); |
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} |
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public static JExpression shr(JExpression left, JExpression right) { |
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return new BinaryOp(">>", left, right); |
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} |
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public static JExpression shrz(JExpression left, JExpression right) { |
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return new BinaryOp(">>>", left, right); |
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} |
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public static JExpression band(JExpression left, JExpression right) { |
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return new BinaryOp("&", left, right); |
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} |
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public static JExpression bor(JExpression left, JExpression right) { |
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return new BinaryOp("|", left, right); |
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} |
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public static JExpression cand(JExpression left, JExpression right) { |
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if (left == JExpr.TRUE) return right; |
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if (right == JExpr.TRUE) return left; |
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if (left == JExpr.FALSE) return left; // JExpr.FALSE |
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if (right == JExpr.FALSE) return right; // JExpr.FALSE |
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return new BinaryOp("&&", left, right); |
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} |
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public static JExpression cor(JExpression left, JExpression right) { |
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if (left == JExpr.TRUE) return left; // JExpr.TRUE |
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if (right == JExpr.TRUE) return right; // JExpr.FALSE |
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if (left == JExpr.FALSE) return right; |
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if (right == JExpr.FALSE) return left; |
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return new BinaryOp("||", left, right); |
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} |
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public static JExpression xor(JExpression left, JExpression right) { |
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return new BinaryOp("^", left, right); |
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} |
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public static JExpression lt(JExpression left, JExpression right) { |
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return new BinaryOp("<", left, right); |
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} |
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public static JExpression lte(JExpression left, JExpression right) { |
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return new BinaryOp("<=", left, right); |
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} |
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public static JExpression gt(JExpression left, JExpression right) { |
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return new BinaryOp(">", left, right); |
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} |
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public static JExpression gte(JExpression left, JExpression right) { |
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return new BinaryOp(">=", left, right); |
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} |
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public static JExpression eq(JExpression left, JExpression right) { |
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return new BinaryOp("==", left, right); |
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} |
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public static JExpression ne(JExpression left, JExpression right) { |
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return new BinaryOp("!=", left, right); |
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} |
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public static JExpression _instanceof(JExpression left, JType right) { |
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return new BinaryOp("instanceof", left, right); |
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} |
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/* -- Ternary operators -- */ |
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static private class TernaryOp extends JExpressionImpl { |
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String op1; |
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String op2; |
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JExpression e1; |
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JExpression e2; |
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JExpression e3; |
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TernaryOp(String op1, String op2, |
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JExpression e1, JExpression e2, JExpression e3) { |
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this.e1 = e1; |
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this.op1 = op1; |
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this.e2 = e2; |
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this.op2 = op2; |
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this.e3 = e3; |
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} |
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public void generate(JFormatter f) { |
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f.p('(').g(e1).p(op1).g(e2).p(op2).g(e3).p(')'); |
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} |
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} |
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public static JExpression cond(JExpression cond, |
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JExpression ifTrue, JExpression ifFalse) { |
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return new TernaryOp("?", ":", cond, ifTrue, ifFalse); |
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} |
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} |