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 
  24 package jdk.test.lib.jittester.factories;
  25 
  26 import java.util.ArrayList;
  27 import jdk.test.lib.jittester.IRNode;
  28 import jdk.test.lib.jittester.ProductionFailedException;
  29 import jdk.test.lib.jittester.ProductionParams;
  30 import jdk.test.lib.jittester.functions.ConstructorDefinitionBlock;
  31 import jdk.test.lib.jittester.types.TypeKlass;
  32 import jdk.test.lib.jittester.utils.PseudoRandom;
  33 
  34 class ConstructorDefinitionBlockFactory extends Factory {
  35     private final long complexityLimit;
  36     private final int statementLimit;
  37     private final int operatorLimit;
  38     private final int memberFunctionsLimit;
  39     private final int memberFunctionsArgLimit;
  40     private final TypeKlass ownerClass;
  41     private final int level;
  42 
  43     ConstructorDefinitionBlockFactory(TypeKlass ownerClass, int memberFunctionsLimit,
  44             int memberFunctionsArgLimit, long complexityLimit, int statementLimit,
  45             int operatorLimit, int level) {
  46         this.ownerClass = ownerClass;
  47         this.memberFunctionsLimit = memberFunctionsLimit;
  48         this.memberFunctionsArgLimit = memberFunctionsArgLimit;
  49         this.complexityLimit = complexityLimit;
  50         this.statementLimit = statementLimit;
  51         this.operatorLimit = operatorLimit;
  52         this.level = level;
  53     }
  54 
  55     @Override
  56     public IRNode produce() throws ProductionFailedException {
  57         IRNodeBuilder builder = new IRNodeBuilder()
  58                 .setOwnerKlass(ownerClass)
  59                 .setStatementLimit(statementLimit)
  60                 .setOperatorLimit(operatorLimit)
  61                 .setLevel(level);
  62         ArrayList<IRNode> content = new ArrayList<>();
  63         int memFunLimit = PseudoRandom.randomNotZero(memberFunctionsLimit);
  64         builder.setComplexityLimit(complexityLimit / memFunLimit);
  65         if (!ProductionParams.disableStatic.value() && PseudoRandom.randomBoolean()) {
  66             // Generate static constructor
  67             content.add(builder.getStaticConstructorDefinitionFactory().produce());
  68             // take static constructor into account
  69             --memFunLimit;
  70         }
  71         // No matter what, generate default constructor first.
  72         // This would guarantee a way to initialize a data member in case,
  73         // when arguments to a non-default constructor cannot be generated.
  74         content.add(builder.setMemberFunctionsArgLimit(0)
  75                 .getConstructorDefinitionFactory()
  76                 .produce());
  77         if (--memFunLimit > 0) {
  78             for (int i = 0; i < memFunLimit; i++) {
  79                 try {
  80                     content.add(builder.setMemberFunctionsArgLimit(memberFunctionsArgLimit)
  81                             .getConstructorDefinitionFactory()
  82                             .produce());
  83                 } catch (ProductionFailedException e) {
  84                 }
  85             }
  86         }
  87         return new ConstructorDefinitionBlock(content, level);
  88     }
  89 }