1/* 2 * Copyright (c) 1994, 2003, Oracle and/or its affiliates. All rights reserved. 3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. 4 * 5 * This code is free software; you can redistribute it and/or modify it 6 * under the terms of the GNU General Public License version 2 only, as 7 * published by the Free Software Foundation. Oracle designates this 8 * particular file as subject to the "Classpath" exception as provided 9 * by Oracle in the LICENSE file that accompanied this code. 10 * 11 * This code is distributed in the hope that it will be useful, but WITHOUT 12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or 13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License 14 * version 2 for more details (a copy is included in the LICENSE file that 15 * accompanied this code). 16 * 17 * You should have received a copy of the GNU General Public License version 18 * 2 along with this work; if not, write to the Free Software Foundation, 19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. 20 * 21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA 22 * or visit www.oracle.com if you need additional information or have any 23 * questions. 24 */ 25 26package sun.tools.tree; 27 28import sun.tools.java.*; 29import java.io.PrintStream; 30 31/** 32 * WARNING: The contents of this source file are not part of any 33 * supported API. Code that depends on them does so at its own risk: 34 * they are subject to change or removal without notice. 35 */ 36public 37class NaryExpression extends UnaryExpression { 38 Expression args[]; 39 40 /** 41 * Constructor 42 */ 43 NaryExpression(int op, long where, Type type, Expression right, Expression args[]) { 44 super(op, where, type, right); 45 this.args = args; 46 } 47 48 /** 49 * Create a copy of the expression for method inlining 50 */ 51 public Expression copyInline(Context ctx) { 52 NaryExpression e = (NaryExpression)clone(); 53 if (right != null) { 54 e.right = right.copyInline(ctx); 55 } 56 e.args = new Expression[args.length]; 57 for (int i = 0 ; i < args.length ; i++) { 58 if (args[i] != null) { 59 e.args[i] = args[i].copyInline(ctx); 60 } 61 } 62 return e; 63 } 64 65 /** 66 * The cost of inlining this expression 67 */ 68 public int costInline(int thresh, Environment env, Context ctx) { 69 int cost = 3; 70 if (right != null) 71 cost += right.costInline(thresh, env, ctx); 72 for (int i = 0 ; (i < args.length) && (cost < thresh) ; i++) { 73 if (args[i] != null) { 74 cost += args[i].costInline(thresh, env, ctx); 75 } 76 } 77 return cost; 78 } 79 80 /** 81 * Print 82 */ 83 public void print(PrintStream out) { 84 out.print("(" + opNames[op] + "#" + hashCode()); 85 if (right != null) { 86 out.print(" "); 87 right.print(out); 88 } 89 for (int i = 0 ; i < args.length ; i++) { 90 out.print(" "); 91 if (args[i] != null) { 92 args[i].print(out); 93 } else { 94 out.print("<null>"); 95 } 96 } 97 out.print(")"); 98 } 99} 100