1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
|
/*
* Copyright (c) 2010, 2013, 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 jdk.nashorn.internal.runtime.linker;
import jdk.nashorn.internal.runtime.ECMAErrors;
import jdk.nashorn.internal.runtime.ECMAException;
/**
* A result of generating an adapter for a class. A tuple of an outcome and - in case of an error outcome - a list of
* classes that caused the error.
*/
final class AdaptationResult {
/**
* Contains various outcomes for attempting to generate an adapter class. These are stored in AdapterInfo instances.
* We have a successful outcome (adapter class was generated) and four possible error outcomes: superclass is final,
* superclass is not public, superclass has no public or protected constructor, more than one superclass was
* specified. We don't throw exceptions when we try to generate the adapter, but rather just record these error
* conditions as they are still useful as partial outcomes, as Nashorn's linker can still successfully check whether
* the class can be autoconverted from a script function even when it is not possible to generate an adapter for it.
*/
enum Outcome {
SUCCESS,
ERROR_FINAL_CLASS,
ERROR_NON_PUBLIC_CLASS,
ERROR_NO_ACCESSIBLE_CONSTRUCTOR,
ERROR_MULTIPLE_SUPERCLASSES,
ERROR_NO_COMMON_LOADER,
ERROR_FINAL_FINALIZER
}
static final AdaptationResult SUCCESSFUL_RESULT = new AdaptationResult(Outcome.SUCCESS, "");
private final Outcome outcome;
private final String classList;
AdaptationResult(final Outcome outcome, final String classList) {
this.outcome = outcome;
this.classList = classList;
}
Outcome getOutcome() {
return outcome;
}
String getClassList() {
return classList;
}
ECMAException typeError() {
return ECMAErrors.typeError("extend." + outcome, classList);
}
}
|
