src/sample/nashorn/jsadapter-fallthrough.js
author erikj
Tue, 12 Sep 2017 19:03:39 +0200
changeset 47216 71c04702a3d5
parent 33005 nashorn/samples/jsadapter-fallthrough.js@19c2fe67d821
permissions -rw-r--r--
8187443: Forest Consolidation: Move files to unified layout Reviewed-by: darcy, ihse
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
33005
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
     1
/*
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
     2
 * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
     3
 *
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
     4
 * Redistribution and use in source and binary forms, with or without
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
     5
 * modification, are permitted provided that the following conditions
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
     6
 * are met:
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
     7
 *
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
     8
 *   - Redistributions of source code must retain the above copyright
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
     9
 *     notice, this list of conditions and the following disclaimer.
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    10
 *
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    11
 *   - Redistributions in binary form must reproduce the above copyright
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    12
 *     notice, this list of conditions and the following disclaimer in the
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    13
 *     documentation and/or other materials provided with the distribution.
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    14
 *
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    15
 *   - Neither the name of Oracle nor the names of its
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    16
 *     contributors may be used to endorse or promote products derived
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    17
 *     from this software without specific prior written permission.
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    18
 *
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    19
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    20
 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    21
 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    22
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    23
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    24
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    25
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    26
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    27
 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    28
 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    29
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    30
 */
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    31
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    32
// Demonstrate how to provide a default fall-through solution for adapted Java
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    33
// objects, forwarding all calls that are not adapted.
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    34
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    35
var Date = Java.type('java.time.LocalDate')
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    36
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    37
function wrapDate(d) {
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    38
    return new JSAdapter() {
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    39
        __call__: function() {
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    40
            // adapted (extra) methods
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    41
            if (arguments[0] === 'yesterday') {
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    42
                return d.minusDays(1)
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    43
            }
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    44
            // fall-through: forward all other, non-adapted method calls
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    45
            var args = [d].concat(Array.prototype.slice.call(arguments, 1)) 
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    46
            return Function.call.apply(d[arguments[0]], args)
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    47
        }
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    48
    }
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    49
}
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    50
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    51
var now = wrapDate(Date.now())
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    52
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    53
print(now)
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    54
print(now.yesterday()) // adapted
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    55
print(now.lengthOfMonth()) // fall through to original method
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    56
print(now.atTime(23, 42)) // arguments are passed through
19c2fe67d821 8139266: add JSAdapter example with fallthrough
mhaupt
parents:
diff changeset
    57