test/hotspot/jtreg/testlibrary/jittester/src/jdk/test/lib/jittester/factories/StaticConstructorDefinitionFactory.java

/*
 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
 *
 * This code is free software; you can redistribute it and/or modify it
 * under the terms of the GNU General Public License version 2 only, as
 * published by the Free Software Foundation.
 *
 * This code is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
 * version 2 for more details (a copy is included in the LICENSE file that
 * accompanied this code).
 *
 * You should have received a copy of the GNU General Public License version
 * 2 along with this work; if not, write to the Free Software Foundation,
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
 * or visit www.oracle.com if you need additional information or have any
 * questions.
 */

package jdk.test.lib.jittester.factories;

import jdk.test.lib.jittester.IRNode;
import jdk.test.lib.jittester.ProductionFailedException;
import jdk.test.lib.jittester.SymbolTable;
import jdk.test.lib.jittester.TypeList;
import jdk.test.lib.jittester.VariableInfo;
import jdk.test.lib.jittester.functions.StaticConstructorDefinition;
import jdk.test.lib.jittester.types.TypeKlass;
import jdk.test.lib.jittester.utils.PseudoRandom;

class StaticConstructorDefinitionFactory extends Factory<StaticConstructorDefinition> {
    private final long complexityLimit;
    private final int statementLimit;
    private final int operatorLimit;
    private final int level;
    private final TypeKlass ownerClass;

    StaticConstructorDefinitionFactory(TypeKlass ownerClass, long complexityLimit,
            int statementLimit, int operatorLimit, int level) {
        this.ownerClass = ownerClass;
        this.complexityLimit = complexityLimit;
        this.statementLimit = statementLimit;
        this.operatorLimit = operatorLimit;
        this.level = level;
    }

    @Override
    public StaticConstructorDefinition produce() throws ProductionFailedException {
        SymbolTable.push();
        IRNode body;
        try {
            SymbolTable.remove(SymbolTable.get("this", VariableInfo.class));
            long complLimit = (long) (PseudoRandom.random() * complexityLimit);
            body = new IRNodeBuilder()
                    .setOwnerKlass(ownerClass)
                    .setResultType(TypeList.VOID)
                    .setComplexityLimit(complLimit)
                    .setStatementLimit(statementLimit)
                    .setOperatorLimit(operatorLimit)
                    .setLevel(level)
                    .setSubBlock(true)
                    .setCanHaveBreaks(true)
                    .setCanHaveContinues(false)
                    .setCanHaveReturn(false)
                    .getBlockFactory()
                    .produce();
        } finally {
            SymbolTable.pop();
        }
        return new StaticConstructorDefinition(body);
    }
}