jdk/src/share/classes/java/lang/invoke/SimpleMethodHandle.java
author darcy
Thu, 27 Jun 2013 19:02:02 -0700
changeset 18569 0e46c17766b7
parent 14342 8435a30053c1
child 22960 436141944957
permissions -rw-r--r--
8019357: Fix doclint warnings in java.lang.invoke Reviewed-by: jrose
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
2707
5a17df307cbc 6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff changeset
     1
/*
14342
8435a30053c1 7197491: update copyright year to match last edit in jdk8 jdk repository
alanb
parents: 13610
diff changeset
     2
 * Copyright (c) 2008, 2012, Oracle and/or its affiliates. All rights reserved.
2707
5a17df307cbc 6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff changeset
     3
 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
5a17df307cbc 6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff changeset
     4
 *
5a17df307cbc 6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff changeset
     5
 * This code is free software; you can redistribute it and/or modify it
5a17df307cbc 6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff changeset
     6
 * under the terms of the GNU General Public License version 2 only, as
5506
202f599c92aa 6943119: Rebrand source copyright notices
ohair
parents: 2764
diff changeset
     7
 * published by the Free Software Foundation.  Oracle designates this
2707
5a17df307cbc 6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff changeset
     8
 * particular file as subject to the "Classpath" exception as provided
5506
202f599c92aa 6943119: Rebrand source copyright notices
ohair
parents: 2764
diff changeset
     9
 * by Oracle in the LICENSE file that accompanied this code.
2707
5a17df307cbc 6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff changeset
    10
 *
5a17df307cbc 6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff changeset
    11
 * This code is distributed in the hope that it will be useful, but WITHOUT
5a17df307cbc 6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff changeset
    12
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
5a17df307cbc 6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff changeset
    13
 * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
5a17df307cbc 6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff changeset
    14
 * version 2 for more details (a copy is included in the LICENSE file that
5a17df307cbc 6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff changeset
    15
 * accompanied this code).
5a17df307cbc 6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff changeset
    16
 *
5a17df307cbc 6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff changeset
    17
 * You should have received a copy of the GNU General Public License version
5a17df307cbc 6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff changeset
    18
 * 2 along with this work; if not, write to the Free Software Foundation,
5a17df307cbc 6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff changeset
    19
 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
5a17df307cbc 6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff changeset
    20
 *
5506
202f599c92aa 6943119: Rebrand source copyright notices
ohair
parents: 2764
diff changeset
    21
 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
202f599c92aa 6943119: Rebrand source copyright notices
ohair
parents: 2764
diff changeset
    22
 * or visit www.oracle.com if you need additional information or have any
202f599c92aa 6943119: Rebrand source copyright notices
ohair
parents: 2764
diff changeset
    23
 * questions.
2707
5a17df307cbc 6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff changeset
    24
 */
5a17df307cbc 6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff changeset
    25
8822
8145ab9f5f86 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 8821
diff changeset
    26
package java.lang.invoke;
2707
5a17df307cbc 6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff changeset
    27
13423
17843fff200d 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 8822
diff changeset
    28
import static java.lang.invoke.LambdaForm.*;
8822
8145ab9f5f86 7012648: move JSR 292 to package java.lang.invoke and adjust names
jrose
parents: 8821
diff changeset
    29
import static java.lang.invoke.MethodHandleNatives.Constants.*;
13423
17843fff200d 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 8822
diff changeset
    30
import java.util.logging.Level;
17843fff200d 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 8822
diff changeset
    31
import java.util.logging.Logger;
2707
5a17df307cbc 6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff changeset
    32
5a17df307cbc 6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff changeset
    33
/**
13423
17843fff200d 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 8822
diff changeset
    34
 * A method handle whose behavior is determined only by its LambdaForm.
2707
5a17df307cbc 6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff changeset
    35
 * @author jrose
5a17df307cbc 6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff changeset
    36
 */
13423
17843fff200d 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 8822
diff changeset
    37
final class SimpleMethodHandle extends MethodHandle {
13610
28122b96858e 7191102: nightly failures after JSR 292 lazy method handle update (round 3)
jrose
parents: 13423
diff changeset
    38
    private SimpleMethodHandle(MethodType type, LambdaForm form) {
13423
17843fff200d 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 8822
diff changeset
    39
        super(type, form);
17843fff200d 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 8822
diff changeset
    40
    }
2707
5a17df307cbc 6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff changeset
    41
13610
28122b96858e 7191102: nightly failures after JSR 292 lazy method handle update (round 3)
jrose
parents: 13423
diff changeset
    42
    /*non-public*/ static SimpleMethodHandle make(MethodType type, LambdaForm form) {
28122b96858e 7191102: nightly failures after JSR 292 lazy method handle update (round 3)
jrose
parents: 13423
diff changeset
    43
        return new SimpleMethodHandle(type, form);
28122b96858e 7191102: nightly failures after JSR 292 lazy method handle update (round 3)
jrose
parents: 13423
diff changeset
    44
    }
28122b96858e 7191102: nightly failures after JSR 292 lazy method handle update (round 3)
jrose
parents: 13423
diff changeset
    45
13423
17843fff200d 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 8822
diff changeset
    46
    @Override
17843fff200d 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 8822
diff changeset
    47
    MethodHandle bindArgument(int pos, char basicType, Object value) {
17843fff200d 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 8822
diff changeset
    48
        MethodType type2 = type().dropParameterTypes(pos, pos+1);
17843fff200d 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 8822
diff changeset
    49
        LambdaForm form2 = internalForm().bind(1+pos, BoundMethodHandle.SpeciesData.EMPTY);
17843fff200d 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 8822
diff changeset
    50
        return BoundMethodHandle.bindSingle(type2, form2, basicType, value);
2707
5a17df307cbc 6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff changeset
    51
    }
5a17df307cbc 6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff changeset
    52
13423
17843fff200d 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 8822
diff changeset
    53
    @Override
17843fff200d 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 8822
diff changeset
    54
    MethodHandle dropArguments(MethodType srcType, int pos, int drops) {
17843fff200d 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 8822
diff changeset
    55
        LambdaForm newForm = internalForm().addArguments(pos, srcType.parameterList().subList(pos, pos+drops));
17843fff200d 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 8822
diff changeset
    56
        return new SimpleMethodHandle(srcType, newForm);
2707
5a17df307cbc 6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff changeset
    57
    }
13423
17843fff200d 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 8822
diff changeset
    58
17843fff200d 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 8822
diff changeset
    59
    @Override
17843fff200d 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 8822
diff changeset
    60
    MethodHandle permuteArguments(MethodType newType, int[] reorder) {
17843fff200d 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 8822
diff changeset
    61
        LambdaForm form2 = internalForm().permuteArguments(1, reorder, basicTypes(newType.parameterList()));
17843fff200d 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 8822
diff changeset
    62
        return new SimpleMethodHandle(newType, form2);
17843fff200d 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 8822
diff changeset
    63
    }
17843fff200d 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 8822
diff changeset
    64
17843fff200d 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 8822
diff changeset
    65
    @Override
17843fff200d 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 8822
diff changeset
    66
    MethodHandle copyWith(MethodType mt, LambdaForm lf) {
17843fff200d 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 8822
diff changeset
    67
        return new SimpleMethodHandle(mt, lf);
17843fff200d 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 8822
diff changeset
    68
    }
17843fff200d 7023639: JSR 292 method handle invocation needs a fast path for compiled code
twisti
parents: 8822
diff changeset
    69
2707
5a17df307cbc 6829144: JSR 292 JVM features need a provisional Java API
jrose
parents:
diff changeset
    70
}