| /* |
| * Copyright (c) 2014, 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 compiler.types.correctness.execution; |
| |
| import compiler.types.correctness.hierarchies.TypeHierarchy; |
| import compiler.types.correctness.scenarios.Scenario; |
| |
| /** |
| * Type profiling conflict execution scenario. The main goal is |
| * to make compiler profile and compile methods with different types. |
| * Scenario tests guards by passing conflicting types (incompatible |
| * for the profiled data). |
| */ |
| public class TypeConflict<T extends TypeHierarchy.I, R> implements Execution<T, R> { |
| /** Test methods execution number to make profile */ |
| private final static int POLLUTION_THRESHOLD = 5000; |
| /** Test methods execution number to make it profiled and compiled*/ |
| private final static int PROFILE_THRESHOLD = 20000; |
| |
| @Override |
| public void execute(Scenario<T, R> scenario) { |
| T base = scenario.getProfiled(); |
| T incompatible = scenario.getConflict(); |
| |
| // pollute profile by passing different types |
| R baseResult = null; |
| R incResult = null; |
| for (int i = 0; i < POLLUTION_THRESHOLD; i++) { |
| baseResult = methodNotToCompile(scenario, base); |
| incResult = methodNotToCompile(scenario, incompatible); |
| } |
| scenario.check(baseResult, base); |
| scenario.check(incResult, incompatible); |
| |
| // profile and compile |
| R result = null; |
| for (int i = 0; i < PROFILE_THRESHOLD; i++) { |
| result = methodNotToCompile(scenario, base); |
| } |
| scenario.check(result, base); |
| |
| // pass another type to make guard work and recompile |
| for (int i = 0; i < PROFILE_THRESHOLD; i++) { |
| result = methodNotToCompile(scenario, incompatible); |
| } |
| scenario.check(result, incompatible); |
| } |
| |
| private R methodNotToCompile(Scenario<T, R> scenario, T t) { |
| return scenario.run(t); |
| } |
| } |
| |