1 /*
2 * Copyright (c) 1998, 2013, 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
26 package org.openjdk.buildtools.jdwpgen;
27
28 import java.util.*;
29 import java.io.*;
30
31 class AltNode extends AbstractGroupNode implements TypeNode {
32
33 SelectNode select = null;
34
35 void constrain(Context ctx) {
36 super.constrain(ctx);
37
38 if (!(nameNode instanceof NameValueNode)) {
39 error("Alt name must have value: " + nameNode);
40 }
41 if (parent instanceof SelectNode) {
42 select = (SelectNode)parent;
43 } else {
44 error("Alt must be in Select");
45 }
46 }
47
48 void document(PrintWriter writer) {
49 writer.println("<tr>");
50 writer.println("<th colspan=\"2\" scope=\"row\">"
51 + indentElement(structIndent,
52 "Case " + nameNode.name
53 + " - if <i>" + ((SelectNode)parent).typeNode.name + "</i>" +
54 " is " + nameNode.value() + ":"));
55 writer.println("<td>" + comment() + " ");
56 writer.println("</tr>");
57
58 ++structIndent;
59 super.document(writer);
60 --structIndent;
61 }
62
63 String javaClassImplements() {
64 return " extends " + select.commonBaseClass();
65 }
66
67 void genJavaClassSpecifics(PrintWriter writer, int depth) {
68 indent(writer, depth);
69 writer.print("static final " + select.typeNode.javaType());
70 writer.println(" ALT_ID = " + nameNode.value() + ";");
71 if (context.isWritingCommand()) {
72 genJavaCreateMethod(writer, depth);
73 } else {
74 indent(writer, depth);
75 writer.println(select.typeNode.javaParam() + "() {");
76 indent(writer, depth+1);
77 writer.println("return ALT_ID;");
78 indent(writer, depth);
79 writer.println("}");
80 }
81 super.genJavaClassSpecifics(writer, depth);
82 }
83
84 void genJavaWriteMethod(PrintWriter writer, int depth) {
85 genJavaWriteMethod(writer, depth, "");
86 }
87
88 void genJavaReadsSelectCase(PrintWriter writer, int depth, String common) {
89 indent(writer, depth);
90 writer.println("case " + nameNode.value() + ":");
91 indent(writer, depth+1);
92 writer.println(common + " = new " + name + "(vm, ps);");
93 indent(writer, depth+1);
94 writer.println("break;");
95 }
96
97 void genJavaCreateMethod(PrintWriter writer, int depth) {
98 indent(writer, depth);
99 writer.print("static " + select.name() + " create(");
100 writer.print(javaParams());
101 writer.println(") {");
102 indent(writer, depth+1);
103 writer.print("return new " + select.name() + "(");
104 writer.print("ALT_ID, new " + javaClassName() + "(");
105 for (Iterator<Node> it = components.iterator(); it.hasNext();) {
106 TypeNode tn = (TypeNode)it.next();
107 writer.print(tn.name());
108 if (it.hasNext()) {
109 writer.print(", ");
110 }
111 }
112 writer.println("));");
113 indent(writer, depth);
114 writer.println("}");
115 }
116
117 }