# HG changeset patch
# User Gilles Duboscq <gilles.m.duboscq@oracle.com>
# Date 1434463117 -7200
# Node ID f3b3083b84cded8e99648ae7aeeb7fd0603ba84e
# Parent  9be89636defe8656785c00bc3e55d19b08ea9ca2
Remove unused HotSpotMethodHandleAccessProvider

diff -r 9be89636defe -r f3b3083b84cd graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/meta/HotSpotMethodHandleAccessProvider.java
--- a/graal/com.oracle.graal.hotspot/src/com/oracle/graal/hotspot/meta/HotSpotMethodHandleAccessProvider.java	Thu Jun 18 16:50:00 2015 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,169 +0,0 @@
-/*
- * Copyright (c) 2014, 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 com.oracle.graal.hotspot.meta;
-
-import com.oracle.jvmci.meta.ResolvedJavaField;
-import com.oracle.jvmci.meta.JavaConstant;
-import com.oracle.jvmci.meta.ResolvedJavaType;
-import com.oracle.jvmci.meta.ConstantReflectionProvider;
-import com.oracle.jvmci.meta.ResolvedJavaMethod;
-import com.oracle.jvmci.meta.MethodHandleAccessProvider;
-import static com.oracle.graal.hotspot.HotSpotGraalRuntime.*;
-import static com.oracle.jvmci.hotspot.HotSpotResolvedJavaType.*;
-import static com.oracle.jvmci.hotspot.HotSpotResolvedObjectTypeImpl.*;
-
-import com.oracle.graal.hotspot.*;
-import com.oracle.jvmci.common.*;
-import com.oracle.jvmci.hotspot.*;
-
-public class HotSpotMethodHandleAccessProvider implements MethodHandleAccessProvider, HotSpotProxified {
-
-    private final ConstantReflectionProvider constantReflection;
-
-    public HotSpotMethodHandleAccessProvider(ConstantReflectionProvider constantReflection) {
-        this.constantReflection = constantReflection;
-    }
-
-    /**
-     * Lazy initialization to break class initialization cycle. Field and method lookup is only
-     * possible after the {@link HotSpotGraalRuntime} is fully initialized.
-     */
-    static class LazyInitialization {
-        static final ResolvedJavaField methodHandleFormField;
-        static final ResolvedJavaField lambdaFormVmentryField;
-        static final ResolvedJavaMethod lambdaFormCompileToBytecodeMethod;
-        static final ResolvedJavaField memberNameVmtargetField;
-
-        /**
-         * Search for an instance field with the given name in a class.
-         *
-         * @param className name of the class to search in
-         * @param fieldName name of the field to be searched
-         * @return resolved java field
-         * @throws ClassNotFoundException
-         */
-        private static ResolvedJavaField findFieldInClass(String className, String fieldName) throws ClassNotFoundException {
-            Class<?> clazz = Class.forName(className);
-            ResolvedJavaType type = fromClass(clazz);
-            ResolvedJavaField[] fields = type.getInstanceFields(false);
-            for (ResolvedJavaField field : fields) {
-                if (field.getName().equals(fieldName)) {
-                    return field;
-                }
-            }
-            return null;
-        }
-
-        private static ResolvedJavaMethod findMethodInClass(String className, String methodName) throws ClassNotFoundException {
-            Class<?> clazz = Class.forName(className);
-            HotSpotResolvedObjectTypeImpl type = fromObjectClass(clazz);
-            ResolvedJavaMethod result = null;
-            for (ResolvedJavaMethod method : type.getDeclaredMethods()) {
-                if (method.getName().equals(methodName)) {
-                    assert result == null : "more than one method found: " + className + "." + methodName;
-                    result = method;
-                }
-            }
-            assert result != null : "method not found: " + className + "." + methodName;
-            return result;
-        }
-
-        static {
-            try {
-                methodHandleFormField = findFieldInClass("java.lang.invoke.MethodHandle", "form");
-                lambdaFormVmentryField = findFieldInClass("java.lang.invoke.LambdaForm", "vmentry");
-                lambdaFormCompileToBytecodeMethod = findMethodInClass("java.lang.invoke.LambdaForm", "compileToBytecode");
-                memberNameVmtargetField = findFieldInClass("java.lang.invoke.MemberName", "vmtarget");
-            } catch (Throwable ex) {
-                throw JVMCIError.shouldNotReachHere();
-            }
-        }
-    }
-
-    @Override
-    public IntrinsicMethod lookupMethodHandleIntrinsic(ResolvedJavaMethod method) {
-        int intrinsicId = ((HotSpotResolvedJavaMethodImpl) method).intrinsicId();
-        if (intrinsicId != 0) {
-            return getMethodHandleIntrinsic(intrinsicId);
-        }
-        return null;
-    }
-
-    public static IntrinsicMethod getMethodHandleIntrinsic(int intrinsicId) {
-        HotSpotVMConfig config = runtime().getConfig();
-        if (intrinsicId == config.vmIntrinsicInvokeBasic) {
-            return IntrinsicMethod.INVOKE_BASIC;
-        } else if (intrinsicId == config.vmIntrinsicLinkToInterface) {
-            return IntrinsicMethod.LINK_TO_INTERFACE;
-        } else if (intrinsicId == config.vmIntrinsicLinkToSpecial) {
-            return IntrinsicMethod.LINK_TO_SPECIAL;
-        } else if (intrinsicId == config.vmIntrinsicLinkToStatic) {
-            return IntrinsicMethod.LINK_TO_STATIC;
-        } else if (intrinsicId == config.vmIntrinsicLinkToVirtual) {
-            return IntrinsicMethod.LINK_TO_VIRTUAL;
-        }
-        return null;
-    }
-
-    @Override
-    public ResolvedJavaMethod resolveInvokeBasicTarget(JavaConstant methodHandle, boolean forceBytecodeGeneration) {
-        if (methodHandle.isNull()) {
-            return null;
-        }
-
-        /* Load non-public field: LambdaForm MethodHandle.form */
-        JavaConstant lambdaForm = constantReflection.readFieldValue(LazyInitialization.methodHandleFormField, methodHandle);
-        if (lambdaForm.isNull()) {
-            return null;
-        }
-
-        JavaConstant memberName;
-        if (forceBytecodeGeneration) {
-            /* Invoke non-public method: MemberName LambdaForm.compileToBytecode() */
-            memberName = LazyInitialization.lambdaFormCompileToBytecodeMethod.invoke(lambdaForm, new JavaConstant[0]);
-        } else {
-            /* Load non-public field: MemberName LambdaForm.vmentry */
-            memberName = constantReflection.readFieldValue(LazyInitialization.lambdaFormVmentryField, lambdaForm);
-        }
-        return getTargetMethod(memberName);
-    }
-
-    @Override
-    public ResolvedJavaMethod resolveLinkToTarget(JavaConstant memberName) {
-        return getTargetMethod(memberName);
-    }
-
-    /**
-     * Returns the {@link ResolvedJavaMethod} for the vmtarget of a java.lang.invoke.MemberName.
-     */
-    private ResolvedJavaMethod getTargetMethod(JavaConstant memberName) {
-        if (memberName.isNull()) {
-            return null;
-        }
-
-        /* Load injected field: JVM_Method* MemberName.vmtarget */
-        JavaConstant vmtarget = constantReflection.readFieldValue(LazyInitialization.memberNameVmtargetField, memberName);
-        /* Create a method from the vmtarget method pointer. */
-        return HotSpotResolvedJavaMethodImpl.fromMetaspace(vmtarget.asLong());
-    }
-}