1/*
2 * Copyright (c) 2015, 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.
8 *
9 * This code is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24package jdk.test.lib.jittester.factories;
25
26import java.util.LinkedList;
27
28import jdk.test.lib.jittester.ProductionFailedException;
29import jdk.test.lib.jittester.SymbolTable;
30import jdk.test.lib.jittester.Type;
31import jdk.test.lib.jittester.TypeList;
32import jdk.test.lib.jittester.VariableDeclaration;
33import jdk.test.lib.jittester.VariableInfo;
34import jdk.test.lib.jittester.types.TypeKlass;
35import jdk.test.lib.jittester.utils.PseudoRandom;
36
37class VariableDeclarationFactory extends Factory<VariableDeclaration> {
38    private final boolean isStatic;
39    private final boolean isLocal;
40    private final TypeKlass ownerClass;
41    private Type resultType;
42
43    VariableDeclarationFactory(TypeKlass ownerClass, boolean isStatic, boolean isLocal, Type resultType) {
44        this.ownerClass = ownerClass;
45        this.isStatic = isStatic;
46        this.isLocal = isLocal;
47        this.resultType = resultType;
48    }
49
50    @Override
51    public VariableDeclaration produce() throws ProductionFailedException {
52        if (resultType.equals(TypeList.VOID)) {
53            LinkedList<Type> types = new LinkedList<>(TypeList.getAll());
54            PseudoRandom.shuffle(types);
55            if (types.isEmpty()) {
56                throw new ProductionFailedException();
57            }
58            resultType = types.getFirst();
59        }
60        String resultName = "var_" + SymbolTable.getNextVariableNumber();
61        int flags = VariableInfo.NONE;
62        if (isStatic) {
63            flags |= VariableInfo.STATIC;
64        }
65        if (isLocal) {
66            flags |= VariableInfo.LOCAL;
67        }
68        VariableInfo varInfo = new VariableInfo(resultName, ownerClass, resultType, flags);
69        SymbolTable.add(varInfo);
70        return new VariableDeclaration(varInfo);
71    }
72}
73