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
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
|
/*
* Copyright (C) 2012 The Project Lombok Authors.
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
package lombok.eclipse.handlers;
import static lombok.core.handlers.HandlerUtil.*;
import static lombok.eclipse.handlers.EclipseHandlerUtil.*;
import lombok.AccessLevel;
import lombok.core.AST.Kind;
import lombok.core.AnnotationValues;
import lombok.core.HandlerPriority;
import lombok.eclipse.EclipseAnnotationHandler;
import lombok.eclipse.EclipseNode;
import lombok.experimental.FieldDefaults;
import lombok.experimental.NonFinal;
import lombok.experimental.PackagePrivate;
import org.eclipse.jdt.internal.compiler.ast.ASTNode;
import org.eclipse.jdt.internal.compiler.ast.Annotation;
import org.eclipse.jdt.internal.compiler.ast.FieldDeclaration;
import org.eclipse.jdt.internal.compiler.ast.TypeDeclaration;
import org.eclipse.jdt.internal.compiler.classfmt.ClassFileConstants;
import org.mangosdk.spi.ProviderFor;
/**
* Handles the {@code lombok.FieldDefaults} annotation for eclipse.
*/
@ProviderFor(EclipseAnnotationHandler.class)
@HandlerPriority(-2048) //-2^11; to ensure @Value picks up on messing with the fields' 'final' state, run earlier.
public class HandleFieldDefaults extends EclipseAnnotationHandler<FieldDefaults> {
public boolean generateFieldDefaultsForType(EclipseNode typeNode, EclipseNode pos, AccessLevel level, boolean makeFinal, boolean checkForTypeLevelFieldDefaults) {
if (checkForTypeLevelFieldDefaults) {
if (hasAnnotation(FieldDefaults.class, typeNode)) {
//The annotation will make it happen, so we can skip it.
return true;
}
}
TypeDeclaration typeDecl = null;
if (typeNode.get() instanceof TypeDeclaration) typeDecl = (TypeDeclaration) typeNode.get();
int modifiers = typeDecl == null ? 0 : typeDecl.modifiers;
boolean notAClass = (modifiers &
(ClassFileConstants.AccInterface | ClassFileConstants.AccAnnotation)) != 0;
if (typeDecl == null || notAClass) {
pos.addError("@FieldDefaults is only supported on a class or an enum.");
return false;
}
for (EclipseNode field : typeNode.down()) {
if (field.getKind() != Kind.FIELD) continue;
FieldDeclaration fieldDecl = (FieldDeclaration) field.get();
if (!filterField(fieldDecl, false)) continue;
Class<?> t = field.get().getClass();
if (t == FieldDeclaration.class) {
// There are various other things that extend FieldDeclaration that really
// aren't field declarations. Typing 'ma' in an otherwise blank class is a
// CompletionOnFieldType object (extends FieldDeclaration). If we mess with the
// modifiers of such a thing, you take away template suggestions such as
// 'main method'. See issue 411.
setFieldDefaultsForField(field, pos.get(), level, makeFinal);
}
}
return true;
}
public void setFieldDefaultsForField(EclipseNode fieldNode, ASTNode pos, AccessLevel level, boolean makeFinal) {
FieldDeclaration field = (FieldDeclaration) fieldNode.get();
if (level != null && level != AccessLevel.NONE) {
if ((field.modifiers & (ClassFileConstants.AccPublic | ClassFileConstants.AccPrivate | ClassFileConstants.AccProtected)) == 0) {
if (!hasAnnotation(PackagePrivate.class, fieldNode)) {
field.modifiers |= EclipseHandlerUtil.toEclipseModifier(level);
}
}
}
if (makeFinal && (field.modifiers & ClassFileConstants.AccFinal) == 0) {
if (!hasAnnotation(NonFinal.class, fieldNode)) {
field.modifiers |= ClassFileConstants.AccFinal;
}
}
fieldNode.rebuild();
}
public void handle(AnnotationValues<FieldDefaults> annotation, Annotation ast, EclipseNode annotationNode) {
handleFlagUsage(annotationNode, FieldDefaults.FLAG_USAGE, "@FieldDefaults");
EclipseNode node = annotationNode.up();
FieldDefaults instance = annotation.getInstance();
AccessLevel level = instance.level();
boolean makeFinal = instance.makeFinal();
if (level == AccessLevel.NONE && !makeFinal) {
annotationNode.addError("This does nothing; provide either level or makeFinal or both.");
return;
}
if (level == AccessLevel.PACKAGE) {
annotationNode.addError("Setting 'level' to PACKAGE does nothing. To force fields as package private, use the @PackagePrivate annotation on the field.");
}
if (!makeFinal && annotation.isExplicit("makeFinal")) {
annotationNode.addError("Setting 'makeFinal' to false does nothing. To force fields to be non-final, use the @NonFinal annotation on the field.");
}
if (node == null) return;
generateFieldDefaultsForType(node, annotationNode, level, makeFinal, false);
}
}
|
