jdk/src/share/classes/sun/dyn/SpreadGeneric.java
changeset 8823 7cd28219a1e4
parent 8717 f75a1efb1412
parent 8822 8145ab9f5f86
child 8824 0762fa26f813
child 9033 a88f5656f05d
--- a/jdk/src/share/classes/sun/dyn/SpreadGeneric.java	Wed Jul 05 17:38:31 2017 +0200
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,678 +0,0 @@
-/*
- * Copyright (c) 2008, 2010, 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.  Oracle designates this
- * particular file as subject to the "Classpath" exception as provided
- * by Oracle in the LICENSE file that accompanied this code.
- *
- * 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 sun.dyn;
-
-import java.dyn.*;
-import java.lang.reflect.Constructor;
-import java.lang.reflect.InvocationTargetException;
-import java.util.ArrayList;
-import sun.dyn.util.ValueConversions;
-import static sun.dyn.MemberName.newIllegalArgumentException;
-
-/**
- * Generic spread adapter.
- * Expands a final argument into multiple (zero or more) arguments, keeping the others the same.
- * @author jrose
- */
-class SpreadGeneric {
-    // type for the outgoing call
-    private final MethodType targetType;
-    // number of arguments to spread
-    private final int spreadCount;
-    // prototype adapter (clone and customize for each new target!)
-    private final Adapter adapter;
-    // entry point for adapter (Adapter mh, a...) => ...
-    private final MethodHandle entryPoint;
-
-    /** Compute and cache information common to all spreading adapters
-     *  that accept calls of the given (generic) type.
-     */
-    private SpreadGeneric(MethodType targetType, int spreadCount) {
-        assert(targetType == targetType.generic());
-        this.targetType = targetType;
-        this.spreadCount = spreadCount;
-        // the target invoker will generally need casts on reference arguments
-        MethodHandle[] ep = { null };
-        Adapter ad = findAdapter(this, ep);
-        if (ad != null) {
-            this.adapter = ad;
-            this.entryPoint = ep[0];
-            return;
-        }
-        this.adapter = buildAdapterFromBytecodes(targetType, spreadCount, ep);
-        this.entryPoint = ep[0];
-    }
-
-    /** From targetType remove the last spreadCount arguments, and instead
-     *  append a simple Object argument.
-     */
-    static MethodType preSpreadType(MethodType targetType, int spreadCount) {
-        @SuppressWarnings("unchecked")
-        ArrayList<Class<?>> params = new ArrayList(targetType.parameterList());
-        int outargs = params.size();
-        params.subList(outargs - spreadCount, outargs).clear();
-        params.add(Object.class);
-        return MethodType.methodType(targetType.returnType(), params);
-    }
-
-    MethodHandle makeInstance(MethodHandle target) {
-        MethodType type = target.type();
-        if (type != targetType) {
-            throw new UnsupportedOperationException("NYI type="+type);
-        }
-        return adapter.makeInstance(this, target);
-    }
-
-    /** Build an adapter of the given generic type, which invokes typedTarget
-     *  on the incoming arguments, after unboxing as necessary.
-     *  The return value is boxed if necessary.
-     * @param genericType  the required type of the result
-     * @param typedTarget the target
-     * @return an adapter method handle
-     */
-    public static MethodHandle make(MethodHandle target, int spreadCount) {
-        MethodType type = target.type();
-        MethodType gtype = type.generic();
-        if (type == gtype) {
-            return SpreadGeneric.of(type, spreadCount).makeInstance(target);
-        } else {
-            MethodHandle gtarget = FromGeneric.make(target);
-            assert(gtarget.type() == gtype);
-            MethodHandle gspread = SpreadGeneric.of(gtype, spreadCount).makeInstance(gtarget);
-            return ToGeneric.make(preSpreadType(type, spreadCount), gspread);
-        }
-    }
-
-    /** Return the adapter information for this type's erasure. */
-    static SpreadGeneric of(MethodType targetType, int spreadCount) {
-        if (targetType != targetType.generic())
-            throw new UnsupportedOperationException("NYI type="+targetType);
-        MethodTypeImpl form = MethodTypeImpl.of(targetType);
-        int outcount = form.parameterCount();
-        assert(spreadCount <= outcount);
-        SpreadGeneric[] spreadGens = form.spreadGeneric;
-        if (spreadGens == null)
-            form.spreadGeneric = spreadGens = new SpreadGeneric[outcount+1];
-        SpreadGeneric spreadGen = spreadGens[spreadCount];
-        if (spreadGen == null)
-            spreadGens[spreadCount] = spreadGen = new SpreadGeneric(form.erasedType(), spreadCount);
-        return spreadGen;
-    }
-
-    public String toString() {
-        return getClass().getSimpleName()+targetType+"["+spreadCount+"]";
-    }
-
-    // This mini-api is called from an Adapter to manage the spread.
-    /** A check/coercion that happens once before any selections. */
-    protected Object check(Object av, int n) {
-        MethodHandleImpl.checkSpreadArgument(av, n);
-        return av;
-    }
-
-    /** The selection operator for spreading; note that it takes Object not Object[]. */
-    protected Object select(Object av, int n) {
-        return ((Object[])av)[n];
-    }
-    /*
-    protected int select_I(Object av, int n) {
-        // maybe return ((int[])select)[n]
-        throw new UnsupportedOperationException("subclass resp.");
-    }
-    protected int select_J(Object av, int n) {
-        // maybe return ((long[])select)[n]
-        throw new UnsupportedOperationException("subclass resp.");
-    }
-    // */
-
-    /* Create an adapter that handles spreading calls for the given type. */
-    static Adapter findAdapter(SpreadGeneric outer, MethodHandle[] ep) {
-        MethodType targetType = outer.targetType;
-        int spreadCount = outer.spreadCount;
-        int outargs = targetType.parameterCount();
-        int inargs = outargs - spreadCount;
-        if (inargs < 0)  return null;
-        MethodType entryType = MethodType.genericMethodType(inargs + 1); // 1 for av
-        String cname1 = "S" + outargs;
-        String[] cnames = { cname1 };
-        String iname = "invoke_S"+spreadCount;
-        // e.g., D5I2, D5, L5I2, L5; invoke_D5
-        for (String cname : cnames) {
-            Class<? extends Adapter> acls = Adapter.findSubClass(cname);
-            if (acls == null)  continue;
-            // see if it has the required invoke method
-            MethodHandle entryPoint = null;
-            try {
-                entryPoint = MethodHandleImpl.IMPL_LOOKUP.findSpecial(acls, iname, entryType, acls);
-            } catch (ReflectiveOperationException ex) {
-            }
-            if (entryPoint == null)  continue;
-            Constructor<? extends Adapter> ctor = null;
-            try {
-                ctor = acls.getDeclaredConstructor(SpreadGeneric.class);
-            } catch (NoSuchMethodException ex) {
-            } catch (SecurityException ex) {
-            }
-            if (ctor == null)  continue;
-            try {
-                // Produce an instance configured as a prototype.
-                Adapter ad = ctor.newInstance(outer);
-                ep[0] = entryPoint;
-                return ad;
-            } catch (IllegalArgumentException ex) {
-            } catch (InvocationTargetException wex) {
-                Throwable ex = wex.getTargetException();
-                if (ex instanceof Error)  throw (Error)ex;
-                if (ex instanceof RuntimeException)  throw (RuntimeException)ex;
-            } catch (InstantiationException ex) {
-            } catch (IllegalAccessException ex) {
-            }
-        }
-        return null;
-    }
-
-    static Adapter buildAdapterFromBytecodes(MethodType targetType,
-            int spreadCount, MethodHandle[] ep) {
-        throw new UnsupportedOperationException("NYI");
-    }
-
-    /**
-     * This adapter takes some untyped arguments, and returns an untyped result.
-     * Internally, it applies the invoker to the target, which causes the
-     * objects to be unboxed; the result is a raw type in L/I/J/F/D.
-     * This result is passed to convert, which is responsible for
-     * converting the raw result into a boxed object.
-     * The invoker is kept separate from the target because it can be
-     * generated once per type erasure family, and reused across adapters.
-     */
-    static abstract class Adapter extends BoundMethodHandle {
-        /*
-         * class X<<R,int M,int N>> extends Adapter {
-         *   (Object**N)=>R target;
-         *   static int S = N-M;
-         *   Object invoke(Object**M a, Object v) = target(a..., v[0]...v[S-1]);
-         * }
-         */
-        protected final SpreadGeneric outer;
-        protected final MethodHandle target;   // (any**N) => R
-
-        @Override
-        public String toString() {
-            return MethodHandleImpl.addTypeString(target, this);
-        }
-
-        static final MethodHandle NO_ENTRY = ValueConversions.identity();
-
-        protected boolean isPrototype() { return target == null; }
-        protected Adapter(SpreadGeneric outer) {
-            super(Access.TOKEN, NO_ENTRY);
-            this.outer = outer;
-            this.target = null;
-            assert(isPrototype());
-        }
-
-        protected Adapter(SpreadGeneric outer, MethodHandle target) {
-            super(Access.TOKEN, outer.entryPoint);
-            this.outer = outer;
-            this.target = target;
-        }
-
-        /** Make a copy of self, with new fields. */
-        protected abstract Adapter makeInstance(SpreadGeneric outer, MethodHandle target);
-        // { return new ThisType(outer, target); }
-
-        protected Object check(Object av, int n) {
-            return outer.check(av, n);
-        }
-        protected Object select(Object av, int n) {
-            return outer.select(av, n);
-        }
-
-        static private final String CLASS_PREFIX; // "sun.dyn.SpreadGeneric$"
-        static {
-            String aname = Adapter.class.getName();
-            String sname = Adapter.class.getSimpleName();
-            if (!aname.endsWith(sname))  throw new InternalError();
-            CLASS_PREFIX = aname.substring(0, aname.length() - sname.length());
-        }
-        /** Find a sibing class of Adapter. */
-        static Class<? extends Adapter> findSubClass(String name) {
-            String cname = Adapter.CLASS_PREFIX + name;
-            try {
-                return Class.forName(cname).asSubclass(Adapter.class);
-            } catch (ClassNotFoundException ex) {
-                return null;
-            } catch (ClassCastException ex) {
-                return null;
-            }
-        }
-    }
-
-    /* generated classes follow this pattern:
-    static class xS2 extends Adapter {
-        protected xS2(SpreadGeneric outer) { super(outer); }  // to build prototype
-        protected xS2(SpreadGeneric outer, MethodHandle t) { super(outer, t); }
-        protected xS2 makeInstance(SpreadGeneric outer, MethodHandle t) { return new xS2(outer, t); }
-        protected Object invoke_S0(Object a0, Object a1, Object av) throws Throwable { av = super.check(av,0);
-             return target.invokeExact(a0, a1)); }
-        protected Object invoke_S1(Object a0, Object av) throws Throwable { av = super.check(av,1);
-             return target.invokeExact(a0,
-                super.select(av,0)); }
-        protected Object invoke_S2(Object a0, Object av) throws Throwable { av = super.check(av,1);
-             return target.invokeExact(
-                super.select(av,0), super.select(av,1)); }
-    }
-    // */
-
-/*
-: SHELL; n=SpreadGeneric; cp -p $n.java $n.java-; sed < $n.java- > $n.java+ -e '/{{*{{/,/}}*}}/w /tmp/genclasses.java' -e '/}}*}}/q'; (cd /tmp; javac -d . genclasses.java; java -cp . genclasses) >> $n.java+; echo '}' >> $n.java+; mv $n.java+ $n.java; mv $n.java- $n.java~
-//{{{
-import java.util.*;
-class genclasses {
-    static String[][] TEMPLATES = { {
-        "@for@ N=0..10",
-        "    //@each-cat@",
-        "    static class @cat@ extends Adapter {",
-        "        protected @cat@(SpreadGeneric outer) { super(outer); }  // to build prototype",
-        "        protected @cat@(SpreadGeneric outer, MethodHandle t) { super(outer, t); }",
-        "        protected @cat@ makeInstance(SpreadGeneric outer, MethodHandle t) { return new @cat@(outer, t); }",
-        "        protected Object invoke_S0(@Tvav,@Object av) throws Throwable { av = super.check(av, 0);",
-        "            return target.invokeExact(@av@); }",
-        "        //@each-S@",
-        "        protected Object invoke_S@S@(@Tvav,@Object av) throws Throwable { av = super.check(av, @S@);",
-        "            return target.invokeExact(@av,@@sv@); }",
-        "        //@end-S@",
-        "    }",
-    } };
-    static final String NEWLINE_INDENT = "\n                ";
-    enum VAR {
-        cat, N, S, av, av_, Tvav_, sv;
-        public final String pattern = "@"+toString().replace('_','.')+"@";
-        public String binding = toString();
-        static void makeBindings(boolean topLevel, int outargs, int spread) {
-            int inargs = outargs - spread;
-            VAR.cat.binding = "S"+outargs;
-            VAR.N.binding = String.valueOf(outargs); // outgoing arg count
-            VAR.S.binding = String.valueOf(spread);  // spread count
-            String[] av = new String[inargs];
-            String[] Tvav = new String[inargs];
-            for (int i = 0; i < inargs; i++) {
-                av[i] = arg(i);
-                Tvav[i] = param("Object", av[i]);
-            }
-            VAR.av.binding = comma(av);
-            VAR.av_.binding = comma(av, ", ");
-            VAR.Tvav_.binding = comma(Tvav, ", ");
-            String[] sv = new String[spread];
-            for (int i = 0; i < spread; i++) {
-                String spc = "";
-                if (i % 4 == 0) spc = NEWLINE_INDENT;
-                sv[i] = spc+"super.select(av,"+i+")";
-            }
-            VAR.sv.binding = comma(sv);
-        }
-        static String arg(int i) { return "a"+i; }
-        static String param(String t, String a) { return t+" "+a; }
-        static String comma(String[] v) { return comma(v, ""); }
-        static String comma(String[] v, String sep) {
-            if (v.length == 0)  return "";
-            String res = v[0];
-            for (int i = 1; i < v.length; i++)  res += ", "+v[i];
-            return res + sep;
-        }
-        static String transform(String string) {
-            for (VAR var : values())
-                string = string.replaceAll(var.pattern, var.binding);
-            return string;
-        }
-    }
-    static String[] stringsIn(String[] strings, int beg, int end) {
-        return Arrays.copyOfRange(strings, beg, Math.min(end, strings.length));
-    }
-    static String[] stringsBefore(String[] strings, int pos) {
-        return stringsIn(strings, 0, pos);
-    }
-    static String[] stringsAfter(String[] strings, int pos) {
-        return stringsIn(strings, pos, strings.length);
-    }
-    static int indexAfter(String[] strings, int pos, String tag) {
-        return Math.min(indexBefore(strings, pos, tag) + 1, strings.length);
-    }
-    static int indexBefore(String[] strings, int pos, String tag) {
-        for (int i = pos, end = strings.length; ; i++) {
-            if (i == end || strings[i].endsWith(tag))  return i;
-        }
-    }
-    static int MIN_ARITY, MAX_ARITY;
-    public static void main(String... av) {
-        for (String[] template : TEMPLATES) {
-            int forLinesLimit = indexBefore(template, 0, "@each-cat@");
-            String[] forLines = stringsBefore(template, forLinesLimit);
-            template = stringsAfter(template, forLinesLimit);
-            for (String forLine : forLines)
-                expandTemplate(forLine, template);
-        }
-    }
-    static void expandTemplate(String forLine, String[] template) {
-        String[] params = forLine.split("[^0-9]+");
-        if (params[0].length() == 0)  params = stringsAfter(params, 1);
-        System.out.println("//params="+Arrays.asList(params));
-        int pcur = 0;
-        MIN_ARITY = Integer.valueOf(params[pcur++]);
-        MAX_ARITY = Integer.valueOf(params[pcur++]);
-        if (pcur != params.length)  throw new RuntimeException("bad extra param: "+forLine);
-        for (int outargs = MIN_ARITY; outargs <= MAX_ARITY; outargs++) {
-            expandTemplate(template, true, outargs, 0);
-        }
-    }
-    static void expandTemplate(String[] template, boolean topLevel, int outargs, int spread) {
-        VAR.makeBindings(topLevel, outargs, spread);
-        for (int i = 0; i < template.length; i++) {
-            String line = template[i];
-            if (line.endsWith("@each-cat@")) {
-                // ignore
-            } else if (line.endsWith("@each-S@")) {
-                int blockEnd = indexAfter(template, i, "@end-S@");
-                String[] block = stringsIn(template, i+1, blockEnd-1);
-                for (int spread1 = spread+1; spread1 <= outargs; spread1++)
-                    expandTemplate(block, false, outargs, spread1);
-                VAR.makeBindings(topLevel, outargs, spread);
-                i = blockEnd-1; continue;
-            } else {
-                System.out.println(VAR.transform(line));
-            }
-        }
-    }
-}
-//}}} */
-//params=[0, 10]
-    static class S0 extends Adapter {
-        protected S0(SpreadGeneric outer) { super(outer); }  // to build prototype
-        protected S0(SpreadGeneric outer, MethodHandle t) { super(outer, t); }
-        protected S0 makeInstance(SpreadGeneric outer, MethodHandle t) { return new S0(outer, t); }
-        protected Object invoke_S0(Object av) throws Throwable { av = super.check(av, 0);
-            return target.invokeExact(); }
-    }
-    static class S1 extends Adapter {
-        protected S1(SpreadGeneric outer) { super(outer); }  // to build prototype
-        protected S1(SpreadGeneric outer, MethodHandle t) { super(outer, t); }
-        protected S1 makeInstance(SpreadGeneric outer, MethodHandle t) { return new S1(outer, t); }
-        protected Object invoke_S0(Object a0, Object av) throws Throwable { av = super.check(av, 0);
-            return target.invokeExact(a0); }
-        protected Object invoke_S1(Object av) throws Throwable { av = super.check(av, 1);
-            return target.invokeExact(
-                super.select(av,0)); }
-    }
-    static class S2 extends Adapter {
-        protected S2(SpreadGeneric outer) { super(outer); }  // to build prototype
-        protected S2(SpreadGeneric outer, MethodHandle t) { super(outer, t); }
-        protected S2 makeInstance(SpreadGeneric outer, MethodHandle t) { return new S2(outer, t); }
-        protected Object invoke_S0(Object a0, Object a1, Object av) throws Throwable { av = super.check(av, 0);
-            return target.invokeExact(a0, a1); }
-        protected Object invoke_S1(Object a0, Object av) throws Throwable { av = super.check(av, 1);
-            return target.invokeExact(a0,
-                super.select(av,0)); }
-        protected Object invoke_S2(Object av) throws Throwable { av = super.check(av, 2);
-            return target.invokeExact(
-                super.select(av,0), super.select(av,1)); }
-    }
-    static class S3 extends Adapter {
-        protected S3(SpreadGeneric outer) { super(outer); }  // to build prototype
-        protected S3(SpreadGeneric outer, MethodHandle t) { super(outer, t); }
-        protected S3 makeInstance(SpreadGeneric outer, MethodHandle t) { return new S3(outer, t); }
-        protected Object invoke_S0(Object a0, Object a1, Object a2, Object av) throws Throwable { av = super.check(av, 0);
-            return target.invokeExact(a0, a1, a2); }
-        protected Object invoke_S1(Object a0, Object a1, Object av) throws Throwable { av = super.check(av, 1);
-            return target.invokeExact(a0, a1,
-                super.select(av,0)); }
-        protected Object invoke_S2(Object a0, Object av) throws Throwable { av = super.check(av, 2);
-            return target.invokeExact(a0,
-                super.select(av,0), super.select(av,1)); }
-        protected Object invoke_S3(Object av) throws Throwable { av = super.check(av, 3);
-            return target.invokeExact(
-                super.select(av,0), super.select(av,1), super.select(av,2)); }
-    }
-    static class S4 extends Adapter {
-        protected S4(SpreadGeneric outer) { super(outer); }  // to build prototype
-        protected S4(SpreadGeneric outer, MethodHandle t) { super(outer, t); }
-        protected S4 makeInstance(SpreadGeneric outer, MethodHandle t) { return new S4(outer, t); }
-        protected Object invoke_S0(Object a0, Object a1, Object a2, Object a3, Object av) throws Throwable { av = super.check(av, 0);
-            return target.invokeExact(a0, a1, a2, a3); }
-        protected Object invoke_S1(Object a0, Object a1, Object a2, Object av) throws Throwable { av = super.check(av, 1);
-            return target.invokeExact(a0, a1, a2,
-                super.select(av,0)); }
-        protected Object invoke_S2(Object a0, Object a1, Object av) throws Throwable { av = super.check(av, 2);
-            return target.invokeExact(a0, a1,
-                super.select(av,0), super.select(av,1)); }
-        protected Object invoke_S3(Object a0, Object av) throws Throwable { av = super.check(av, 3);
-            return target.invokeExact(a0,
-                super.select(av,0), super.select(av,1), super.select(av,2)); }
-        protected Object invoke_S4(Object av) throws Throwable { av = super.check(av, 4);
-            return target.invokeExact(
-                super.select(av,0), super.select(av,1), super.select(av,2), super.select(av,3)); }
-    }
-    static class S5 extends Adapter {
-        protected S5(SpreadGeneric outer) { super(outer); }  // to build prototype
-        protected S5(SpreadGeneric outer, MethodHandle t) { super(outer, t); }
-        protected S5 makeInstance(SpreadGeneric outer, MethodHandle t) { return new S5(outer, t); }
-        protected Object invoke_S0(Object a0, Object a1, Object a2, Object a3, Object a4, Object av) throws Throwable { av = super.check(av, 0);
-            return target.invokeExact(a0, a1, a2, a3, a4); }
-        protected Object invoke_S1(Object a0, Object a1, Object a2, Object a3, Object av) throws Throwable { av = super.check(av, 1);
-            return target.invokeExact(a0, a1, a2, a3,
-                super.select(av,0)); }
-        protected Object invoke_S2(Object a0, Object a1, Object a2, Object av) throws Throwable { av = super.check(av, 2);
-            return target.invokeExact(a0, a1, a2,
-                super.select(av,0), super.select(av,1)); }
-        protected Object invoke_S3(Object a0, Object a1, Object av) throws Throwable { av = super.check(av, 3);
-            return target.invokeExact(a0, a1,
-                super.select(av,0), super.select(av,1), super.select(av,2)); }
-        protected Object invoke_S4(Object a0, Object av) throws Throwable { av = super.check(av, 4);
-            return target.invokeExact(a0,
-                super.select(av,0), super.select(av,1), super.select(av,2), super.select(av,3)); }
-        protected Object invoke_S5(Object av) throws Throwable { av = super.check(av, 5);
-            return target.invokeExact(
-                super.select(av,0), super.select(av,1), super.select(av,2), super.select(av,3),
-                super.select(av,4)); }
-    }
-    static class S6 extends Adapter {
-        protected S6(SpreadGeneric outer) { super(outer); }  // to build prototype
-        protected S6(SpreadGeneric outer, MethodHandle t) { super(outer, t); }
-        protected S6 makeInstance(SpreadGeneric outer, MethodHandle t) { return new S6(outer, t); }
-        protected Object invoke_S0(Object a0, Object a1, Object a2, Object a3, Object a4, Object a5, Object av) throws Throwable { av = super.check(av, 0);
-            return target.invokeExact(a0, a1, a2, a3, a4, a5); }
-        protected Object invoke_S1(Object a0, Object a1, Object a2, Object a3, Object a4, Object av) throws Throwable { av = super.check(av, 1);
-            return target.invokeExact(a0, a1, a2, a3, a4,
-                super.select(av,0)); }
-        protected Object invoke_S2(Object a0, Object a1, Object a2, Object a3, Object av) throws Throwable { av = super.check(av, 2);
-            return target.invokeExact(a0, a1, a2, a3,
-                super.select(av,0), super.select(av,1)); }
-        protected Object invoke_S3(Object a0, Object a1, Object a2, Object av) throws Throwable { av = super.check(av, 3);
-            return target.invokeExact(a0, a1, a2,
-                super.select(av,0), super.select(av,1), super.select(av,2)); }
-        protected Object invoke_S4(Object a0, Object a1, Object av) throws Throwable { av = super.check(av, 4);
-            return target.invokeExact(a0, a1,
-                super.select(av,0), super.select(av,1), super.select(av,2), super.select(av,3)); }
-        protected Object invoke_S5(Object a0, Object av) throws Throwable { av = super.check(av, 5);
-            return target.invokeExact(a0,
-                super.select(av,0), super.select(av,1), super.select(av,2), super.select(av,3),
-                super.select(av,4)); }
-        protected Object invoke_S6(Object av) throws Throwable { av = super.check(av, 6);
-            return target.invokeExact(
-                super.select(av,0), super.select(av,1), super.select(av,2), super.select(av,3),
-                super.select(av,4), super.select(av,5)); }
-    }
-    static class S7 extends Adapter {
-        protected S7(SpreadGeneric outer) { super(outer); }  // to build prototype
-        protected S7(SpreadGeneric outer, MethodHandle t) { super(outer, t); }
-        protected S7 makeInstance(SpreadGeneric outer, MethodHandle t) { return new S7(outer, t); }
-        protected Object invoke_S0(Object a0, Object a1, Object a2, Object a3, Object a4, Object a5, Object a6, Object av) throws Throwable { av = super.check(av, 0);
-            return target.invokeExact(a0, a1, a2, a3, a4, a5, a6); }
-        protected Object invoke_S1(Object a0, Object a1, Object a2, Object a3, Object a4, Object a5, Object av) throws Throwable { av = super.check(av, 1);
-            return target.invokeExact(a0, a1, a2, a3, a4, a5,
-                super.select(av,0)); }
-        protected Object invoke_S2(Object a0, Object a1, Object a2, Object a3, Object a4, Object av) throws Throwable { av = super.check(av, 2);
-            return target.invokeExact(a0, a1, a2, a3, a4,
-                super.select(av,0), super.select(av,1)); }
-        protected Object invoke_S3(Object a0, Object a1, Object a2, Object a3, Object av) throws Throwable { av = super.check(av, 3);
-            return target.invokeExact(a0, a1, a2, a3,
-                super.select(av,0), super.select(av,1), super.select(av,2)); }
-        protected Object invoke_S4(Object a0, Object a1, Object a2, Object av) throws Throwable { av = super.check(av, 4);
-            return target.invokeExact(a0, a1, a2,
-                super.select(av,0), super.select(av,1), super.select(av,2), super.select(av,3)); }
-        protected Object invoke_S5(Object a0, Object a1, Object av) throws Throwable { av = super.check(av, 5);
-            return target.invokeExact(a0, a1,
-                super.select(av,0), super.select(av,1), super.select(av,2), super.select(av,3),
-                super.select(av,4)); }
-        protected Object invoke_S6(Object a0, Object av) throws Throwable { av = super.check(av, 6);
-            return target.invokeExact(a0,
-                super.select(av,0), super.select(av,1), super.select(av,2), super.select(av,3),
-                super.select(av,4), super.select(av,5)); }
-        protected Object invoke_S7(Object av) throws Throwable { av = super.check(av, 7);
-            return target.invokeExact(
-                super.select(av,0), super.select(av,1), super.select(av,2), super.select(av,3),
-                super.select(av,4), super.select(av,5), super.select(av,6)); }
-    }
-    static class S8 extends Adapter {
-        protected S8(SpreadGeneric outer) { super(outer); }  // to build prototype
-        protected S8(SpreadGeneric outer, MethodHandle t) { super(outer, t); }
-        protected S8 makeInstance(SpreadGeneric outer, MethodHandle t) { return new S8(outer, t); }
-        protected Object invoke_S0(Object a0, Object a1, Object a2, Object a3, Object a4, Object a5, Object a6, Object a7, Object av) throws Throwable { av = super.check(av, 0);
-            return target.invokeExact(a0, a1, a2, a3, a4, a5, a6, a7); }
-        protected Object invoke_S1(Object a0, Object a1, Object a2, Object a3, Object a4, Object a5, Object a6, Object av) throws Throwable { av = super.check(av, 1);
-            return target.invokeExact(a0, a1, a2, a3, a4, a5, a6,
-                super.select(av,0)); }
-        protected Object invoke_S2(Object a0, Object a1, Object a2, Object a3, Object a4, Object a5, Object av) throws Throwable { av = super.check(av, 2);
-            return target.invokeExact(a0, a1, a2, a3, a4, a5,
-                super.select(av,0), super.select(av,1)); }
-        protected Object invoke_S3(Object a0, Object a1, Object a2, Object a3, Object a4, Object av) throws Throwable { av = super.check(av, 3);
-            return target.invokeExact(a0, a1, a2, a3, a4,
-                super.select(av,0), super.select(av,1), super.select(av,2)); }
-        protected Object invoke_S4(Object a0, Object a1, Object a2, Object a3, Object av) throws Throwable { av = super.check(av, 4);
-            return target.invokeExact(a0, a1, a2, a3,
-                super.select(av,0), super.select(av,1), super.select(av,2), super.select(av,3)); }
-        protected Object invoke_S5(Object a0, Object a1, Object a2, Object av) throws Throwable { av = super.check(av, 5);
-            return target.invokeExact(a0, a1, a2,
-                super.select(av,0), super.select(av,1), super.select(av,2), super.select(av,3),
-                super.select(av,4)); }
-        protected Object invoke_S6(Object a0, Object a1, Object av) throws Throwable { av = super.check(av, 6);
-            return target.invokeExact(a0, a1,
-                super.select(av,0), super.select(av,1), super.select(av,2), super.select(av,3),
-                super.select(av,4), super.select(av,5)); }
-        protected Object invoke_S7(Object a0, Object av) throws Throwable { av = super.check(av, 7);
-            return target.invokeExact(a0,
-                super.select(av,0), super.select(av,1), super.select(av,2), super.select(av,3),
-                super.select(av,4), super.select(av,5), super.select(av,6)); }
-        protected Object invoke_S8(Object av) throws Throwable { av = super.check(av, 8);
-            return target.invokeExact(
-                super.select(av,0), super.select(av,1), super.select(av,2), super.select(av,3),
-                super.select(av,4), super.select(av,5), super.select(av,6), super.select(av,7)); }
-    }
-    static class S9 extends Adapter {
-        protected S9(SpreadGeneric outer) { super(outer); }  // to build prototype
-        protected S9(SpreadGeneric outer, MethodHandle t) { super(outer, t); }
-        protected S9 makeInstance(SpreadGeneric outer, MethodHandle t) { return new S9(outer, t); }
-        protected Object invoke_S0(Object a0, Object a1, Object a2, Object a3, Object a4, Object a5, Object a6, Object a7, Object a8, Object av) throws Throwable { av = super.check(av, 0);
-            return target.invokeExact(a0, a1, a2, a3, a4, a5, a6, a7, a8); }
-        protected Object invoke_S1(Object a0, Object a1, Object a2, Object a3, Object a4, Object a5, Object a6, Object a7, Object av) throws Throwable { av = super.check(av, 1);
-            return target.invokeExact(a0, a1, a2, a3, a4, a5, a6, a7,
-                super.select(av,0)); }
-        protected Object invoke_S2(Object a0, Object a1, Object a2, Object a3, Object a4, Object a5, Object a6, Object av) throws Throwable { av = super.check(av, 2);
-            return target.invokeExact(a0, a1, a2, a3, a4, a5, a6,
-                super.select(av,0), super.select(av,1)); }
-        protected Object invoke_S3(Object a0, Object a1, Object a2, Object a3, Object a4, Object a5, Object av) throws Throwable { av = super.check(av, 3);
-            return target.invokeExact(a0, a1, a2, a3, a4, a5,
-                super.select(av,0), super.select(av,1), super.select(av,2)); }
-        protected Object invoke_S4(Object a0, Object a1, Object a2, Object a3, Object a4, Object av) throws Throwable { av = super.check(av, 4);
-            return target.invokeExact(a0, a1, a2, a3, a4,
-                super.select(av,0), super.select(av,1), super.select(av,2), super.select(av,3)); }
-        protected Object invoke_S5(Object a0, Object a1, Object a2, Object a3, Object av) throws Throwable { av = super.check(av, 5);
-            return target.invokeExact(a0, a1, a2, a3,
-                super.select(av,0), super.select(av,1), super.select(av,2), super.select(av,3),
-                super.select(av,4)); }
-        protected Object invoke_S6(Object a0, Object a1, Object a2, Object av) throws Throwable { av = super.check(av, 6);
-            return target.invokeExact(a0, a1, a2,
-                super.select(av,0), super.select(av,1), super.select(av,2), super.select(av,3),
-                super.select(av,4), super.select(av,5)); }
-        protected Object invoke_S7(Object a0, Object a1, Object av) throws Throwable { av = super.check(av, 7);
-            return target.invokeExact(a0, a1,
-                super.select(av,0), super.select(av,1), super.select(av,2), super.select(av,3),
-                super.select(av,4), super.select(av,5), super.select(av,6)); }
-        protected Object invoke_S8(Object a0, Object av) throws Throwable { av = super.check(av, 8);
-            return target.invokeExact(a0,
-                super.select(av,0), super.select(av,1), super.select(av,2), super.select(av,3),
-                super.select(av,4), super.select(av,5), super.select(av,6), super.select(av,7)); }
-        protected Object invoke_S9(Object av) throws Throwable { av = super.check(av, 9);
-            return target.invokeExact(
-                super.select(av,0), super.select(av,1), super.select(av,2), super.select(av,3),
-                super.select(av,4), super.select(av,5), super.select(av,6), super.select(av,7),
-                super.select(av,8)); }
-    }
-    static class S10 extends Adapter {
-        protected S10(SpreadGeneric outer) { super(outer); }  // to build prototype
-        protected S10(SpreadGeneric outer, MethodHandle t) { super(outer, t); }
-        protected S10 makeInstance(SpreadGeneric outer, MethodHandle t) { return new S10(outer, t); }
-        protected Object invoke_S0(Object a0, Object a1, Object a2, Object a3, Object a4, Object a5, Object a6, Object a7, Object a8, Object a9, Object av) throws Throwable { av = super.check(av, 0);
-            return target.invokeExact(a0, a1, a2, a3, a4, a5, a6, a7, a8, a9); }
-        protected Object invoke_S1(Object a0, Object a1, Object a2, Object a3, Object a4, Object a5, Object a6, Object a7, Object a8, Object av) throws Throwable { av = super.check(av, 1);
-            return target.invokeExact(a0, a1, a2, a3, a4, a5, a6, a7, a8,
-                super.select(av,0)); }
-        protected Object invoke_S2(Object a0, Object a1, Object a2, Object a3, Object a4, Object a5, Object a6, Object a7, Object av) throws Throwable { av = super.check(av, 2);
-            return target.invokeExact(a0, a1, a2, a3, a4, a5, a6, a7,
-                super.select(av,0), super.select(av,1)); }
-        protected Object invoke_S3(Object a0, Object a1, Object a2, Object a3, Object a4, Object a5, Object a6, Object av) throws Throwable { av = super.check(av, 3);
-            return target.invokeExact(a0, a1, a2, a3, a4, a5, a6,
-                super.select(av,0), super.select(av,1), super.select(av,2)); }
-        protected Object invoke_S4(Object a0, Object a1, Object a2, Object a3, Object a4, Object a5, Object av) throws Throwable { av = super.check(av, 4);
-            return target.invokeExact(a0, a1, a2, a3, a4, a5,
-                super.select(av,0), super.select(av,1), super.select(av,2), super.select(av,3)); }
-        protected Object invoke_S5(Object a0, Object a1, Object a2, Object a3, Object a4, Object av) throws Throwable { av = super.check(av, 5);
-            return target.invokeExact(a0, a1, a2, a3, a4,
-                super.select(av,0), super.select(av,1), super.select(av,2), super.select(av,3),
-                super.select(av,4)); }
-        protected Object invoke_S6(Object a0, Object a1, Object a2, Object a3, Object av) throws Throwable { av = super.check(av, 6);
-            return target.invokeExact(a0, a1, a2, a3,
-                super.select(av,0), super.select(av,1), super.select(av,2), super.select(av,3),
-                super.select(av,4), super.select(av,5)); }
-        protected Object invoke_S7(Object a0, Object a1, Object a2, Object av) throws Throwable { av = super.check(av, 7);
-            return target.invokeExact(a0, a1, a2,
-                super.select(av,0), super.select(av,1), super.select(av,2), super.select(av,3),
-                super.select(av,4), super.select(av,5), super.select(av,6)); }
-        protected Object invoke_S8(Object a0, Object a1, Object av) throws Throwable { av = super.check(av, 8);
-            return target.invokeExact(a0, a1,
-                super.select(av,0), super.select(av,1), super.select(av,2), super.select(av,3),
-                super.select(av,4), super.select(av,5), super.select(av,6), super.select(av,7)); }
-        protected Object invoke_S9(Object a0, Object av) throws Throwable { av = super.check(av, 9);
-            return target.invokeExact(a0,
-                super.select(av,0), super.select(av,1), super.select(av,2), super.select(av,3),
-                super.select(av,4), super.select(av,5), super.select(av,6), super.select(av,7),
-                super.select(av,8)); }
-        protected Object invoke_S10(Object av) throws Throwable { av = super.check(av, 10);
-            return target.invokeExact(
-                super.select(av,0), super.select(av,1), super.select(av,2), super.select(av,3),
-                super.select(av,4), super.select(av,5), super.select(av,6), super.select(av,7),
-                super.select(av,8), super.select(av,9)); }
-    }
-}