--- /dev/null 2018-05-14 10:15:02.574213890 -0700 +++ new/test/hotspot/jtreg/vmTestbase/vm/runtime/defmeth/shared/data/ParamValueExtractor.java 2018-05-21 10:53:16.857502602 -0700 @@ -0,0 +1,62 @@ +/* + * Copyright (c) 2013, 2018, 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 vm.runtime.defmeth.shared.data; + +import vm.runtime.defmeth.shared.data.AbstractVisitor; +import vm.runtime.defmeth.shared.data.method.param.*; +import vm.runtime.defmeth.shared.executor.AbstractReflectionTest; + +/** + * Extracts a value from Param object. + * It is used when method is invoked using Reflection API + * or through MethodHandle.invokeWithArguments. + */ +public class ParamValueExtractor extends AbstractVisitor { + private Object value; + private AbstractReflectionTest methodInvokeTest; + + public Object value() { + param.visit(this); + return value; + } + + private Param param; + public ParamValueExtractor(AbstractReflectionTest methodInvokeTest, Param param) { + this.methodInvokeTest = methodInvokeTest; + this.param = param; } + + @Override public void visitParamInt(IntParam i) { value = i.value(); } + @Override public void visitParamLong(LongParam l) { value = l.value(); } + @Override public void visitParamFloat(FloatParam f) { value = f.value(); } + @Override public void visitParamDouble(DoubleParam d) { value = d.value(); } + @Override public void visitParamString(StringParam str) { value = str.value(); } + @Override public void visitParamNull() { value = null; } + @Override public void visitParamNewInstance(NewInstanceParam type) { + try { + value = methodInvokeTest.resolve(type.clazz()).newInstance(); + } catch (InstantiationException | IllegalAccessException e) { + throw new Error(e); + } + } +}