| /* |
| * 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 java.util.ArrayList; |
| import java.util.List; |
| |
| import jdk.test.lib.jittester.Block; |
| import jdk.test.lib.jittester.CatchBlock; |
| import jdk.test.lib.jittester.ProductionFailedException; |
| import jdk.test.lib.jittester.TryCatchBlock; |
| import jdk.test.lib.jittester.Type; |
| import jdk.test.lib.jittester.TypeList; |
| import jdk.test.lib.jittester.utils.TypeUtil; |
| import jdk.test.lib.jittester.types.TypeKlass; |
| import jdk.test.lib.jittester.utils.PseudoRandom; |
| |
| class TryCatchBlockFactory extends Factory<TryCatchBlock> { |
| private final static double CATCH_SELECTION_COEF = 0.1d; |
| private final Type returnType; |
| private final long complexityLimit; |
| private final int statementLimit, operatorLimit; |
| private final boolean subBlock; |
| private final boolean canHaveBreaks; |
| private final boolean canHaveContinues; |
| private final boolean canHaveReturn; |
| private final int level; |
| private final TypeKlass ownerClass; |
| |
| TryCatchBlockFactory(TypeKlass ownerClass, Type returnType, |
| long complexityLimit, int statementLimit, int operatorLimit, |
| int level, boolean subBlock, boolean canHaveBreaks, |
| boolean canHaveContinues, boolean canHaveReturn) { |
| this.ownerClass = ownerClass; |
| this.returnType = returnType; |
| this.complexityLimit = complexityLimit; |
| this.statementLimit = statementLimit; |
| this.operatorLimit = operatorLimit; |
| this.level = level; |
| this.subBlock = subBlock; |
| this.canHaveBreaks = canHaveBreaks; |
| this.canHaveContinues = canHaveContinues; |
| this.canHaveReturn = canHaveReturn; |
| } |
| |
| @Override |
| public TryCatchBlock produce() throws ProductionFailedException { |
| if (complexityLimit < 1 || statementLimit < 1) { |
| throw new ProductionFailedException(); |
| } |
| List<Type> uncheckedThrowables = getUncheckedThrowables(); |
| IRNodeBuilder builder = new IRNodeBuilder().setOwnerKlass(ownerClass) |
| .setResultType(returnType) |
| .setOperatorLimit(operatorLimit) |
| .setLevel(level) |
| .setSubBlock(subBlock) |
| .setCanHaveReturn(canHaveReturn) |
| .setCanHaveContinues(canHaveContinues) |
| .setCanHaveBreaks(canHaveBreaks); |
| Block body = getBlock(builder, 0.6); |
| int catchBlocksCount = (int) (CATCH_SELECTION_COEF |
| * PseudoRandom.random() * uncheckedThrowables.size()); |
| List<CatchBlock> catchBlocks = new ArrayList<>(); |
| List<Type> caught = new ArrayList<>(); |
| for (int i = 0; i < catchBlocksCount; i++) { |
| List<Type> whatToCatch = new ArrayList<>(); |
| int throwableLimit = 1 + (int) ((1/(2*CATCH_SELECTION_COEF)) |
| * PseudoRandom.random()); |
| for (int j = 0; j < throwableLimit; j++) { |
| whatToCatch.add(selectUniqueThrowable(uncheckedThrowables, caught)); |
| } |
| catchBlocks.add(new CatchBlock(getBlock(builder, 0.3/catchBlocksCount), |
| whatToCatch, level)); |
| } |
| Block finallyBody = PseudoRandom.randomBoolean() || catchBlocksCount == 0 ? getBlock(builder, 0.1) : null; |
| return new TryCatchBlock(body, finallyBody, catchBlocks, level); |
| } |
| |
| private Type selectUniqueThrowable(List<Type> variants, List<Type> caught) { |
| Type selected; |
| do { |
| int randomIndex = PseudoRandom.randomNotZero(variants.size()) - 1; |
| selected = variants.get(randomIndex); |
| } while (caught.contains(selected)); |
| caught.add(selected); |
| return selected; |
| } |
| |
| private Block getBlock(IRNodeBuilder builder, double weight) |
| throws ProductionFailedException { |
| long actualComplexityLim = (long) (weight * PseudoRandom.random() |
| * complexityLimit); |
| int actualStatementLim = (int) (weight * PseudoRandom.random() |
| * statementLimit); |
| return builder.setStatementLimit(actualStatementLim) |
| .setComplexityLimit(actualComplexityLim) |
| .getBlockFactory() |
| .produce(); |
| } |
| |
| private List<Type> getUncheckedThrowables() { |
| List<Type> result = new ArrayList<>(); |
| result.addAll(TypeUtil.getImplicitlyCastable(TypeList.getAll(), |
| new TypeKlass("java.lang.Error"))); |
| result.addAll(TypeUtil.getImplicitlyCastable(TypeList.getAll(), |
| new TypeKlass("java.lang.RuntimeException"))); |
| return result; |
| } |
| } |