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
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
|
/*
* Copyright (C) 2014-2018 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.handleExperimentalFlagUsage;
import static lombok.eclipse.handlers.EclipseHandlerUtil.*;
import java.util.ArrayList;
import java.util.List;
import lombok.AccessLevel;
import lombok.ConfigurationKeys;
import lombok.core.AST.Kind;
import lombok.core.AnnotationValues;
import lombok.eclipse.Eclipse;
import lombok.eclipse.EclipseAnnotationHandler;
import lombok.eclipse.EclipseNode;
import lombok.experimental.FieldNameConstants;
import org.eclipse.jdt.internal.compiler.ast.ASTNode;
import org.eclipse.jdt.internal.compiler.ast.AllocationExpression;
import org.eclipse.jdt.internal.compiler.ast.Annotation;
import org.eclipse.jdt.internal.compiler.ast.Clinit;
import org.eclipse.jdt.internal.compiler.ast.ConstructorDeclaration;
import org.eclipse.jdt.internal.compiler.ast.ExplicitConstructorCall;
import org.eclipse.jdt.internal.compiler.ast.FieldDeclaration;
import org.eclipse.jdt.internal.compiler.ast.QualifiedTypeReference;
import org.eclipse.jdt.internal.compiler.ast.Statement;
import org.eclipse.jdt.internal.compiler.ast.StringLiteral;
import org.eclipse.jdt.internal.compiler.ast.TypeDeclaration;
import org.eclipse.jdt.internal.compiler.classfmt.ClassFileConstants;
import org.eclipse.jdt.internal.compiler.lookup.ClassScope;
import org.eclipse.jdt.internal.compiler.lookup.TypeConstants;
import org.mangosdk.spi.ProviderFor;
@ProviderFor(EclipseAnnotationHandler.class)
public class HandleFieldNameConstants extends EclipseAnnotationHandler<FieldNameConstants> {
public void generateFieldNameConstantsForType(EclipseNode typeNode, EclipseNode errorNode, AccessLevel level, boolean asEnum, String innerTypeName, boolean onlyExplicit) {
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) {
errorNode.addError("@FieldNameConstants is only supported on a class or an enum.");
return;
}
List<EclipseNode> qualified = new ArrayList<EclipseNode>();
for (EclipseNode field : typeNode.down()) {
if (fieldQualifiesForFieldNameConstantsGeneration(field, onlyExplicit)) qualified.add(field);
}
if (qualified.isEmpty()) {
errorNode.addWarning("No fields qualify for @FieldNameConstants, therefore this annotation does nothing");
} else {
createInnerTypeFieldNameConstants(typeNode, errorNode.get(), level, qualified, asEnum, innerTypeName);
}
}
private boolean fieldQualifiesForFieldNameConstantsGeneration(EclipseNode field, boolean onlyExplicit) {
if (field.getKind() != Kind.FIELD) return false;
if (hasAnnotation(FieldNameConstants.Exclude.class, field)) return false;
if (hasAnnotation(FieldNameConstants.Include.class, field)) return true;
if (onlyExplicit) return false;
FieldDeclaration fieldDecl = (FieldDeclaration) field.get();
return filterField(fieldDecl);
}
public void handle(AnnotationValues<FieldNameConstants> annotation, Annotation ast, EclipseNode annotationNode) {
handleExperimentalFlagUsage(annotationNode, ConfigurationKeys.FIELD_NAME_CONSTANTS_FLAG_USAGE, "@FieldNameConstants");
EclipseNode node = annotationNode.up();
FieldNameConstants annotationInstance = annotation.getInstance();
AccessLevel level = annotationInstance.level();
boolean asEnum = annotationInstance.asEnum();
boolean usingLombokv1_18_2 = annotation.isExplicit("prefix") || annotation.isExplicit("suffix") || node.getKind() == Kind.FIELD;
if (usingLombokv1_18_2) {
annotationNode.addError("@FieldNameConstants has been redesigned in lombok v1.18.4; please upgrade your project dependency on lombok. See https://projectlombok.org/features/experimental/FieldNameConstants for more information.");
return;
}
if (level == AccessLevel.NONE) {
annotationNode.addWarning("AccessLevel.NONE is not compatible with @FieldNameConstants. If you don't want the inner type, simply remove FieldNameConstants.");
return;
}
String innerTypeName = annotationInstance.innerTypeName();
if (innerTypeName.isEmpty()) innerTypeName = annotationNode.getAst().readConfiguration(ConfigurationKeys.FIELD_NAME_CONSTANTS_INNER_TYPE_NAME);
if (innerTypeName == null || innerTypeName.isEmpty()) innerTypeName = "Fields";
generateFieldNameConstantsForType(node, annotationNode, level, asEnum, innerTypeName, annotationInstance.onlyExplicitlyIncluded());
}
private void createInnerTypeFieldNameConstants(EclipseNode typeNode, ASTNode source, AccessLevel level, List<EclipseNode> fields, boolean asEnum, String innerTypeName) {
if (fields.isEmpty()) return;
TypeDeclaration parent = (TypeDeclaration) typeNode.get();
TypeDeclaration innerType = new TypeDeclaration(parent.compilationResult);
innerType.bits |= Eclipse.ECLIPSE_DO_NOT_TOUCH_FLAG;
innerType.modifiers = toEclipseModifier(level) | (asEnum ? ClassFileConstants.AccEnum : ClassFileConstants.AccStatic | ClassFileConstants.AccFinal);
char[] name = innerTypeName.toCharArray();
innerType.name = name;
innerType.traverse(new SetGeneratedByVisitor(source), (ClassScope) null);
EclipseNode innerNode = injectType(typeNode, innerType);
ConstructorDeclaration constructor = new ConstructorDeclaration(parent.compilationResult);
constructor.selector = name;
constructor.declarationSourceStart = constructor.sourceStart = source.sourceStart;
constructor.declarationSourceEnd = constructor.sourceEnd = source.sourceEnd;
constructor.modifiers = ClassFileConstants.AccPrivate;
ExplicitConstructorCall superCall = new ExplicitConstructorCall(0);
superCall.sourceStart = source.sourceStart;
superCall.sourceEnd = source.sourceEnd;
superCall.bits |= Eclipse.ECLIPSE_DO_NOT_TOUCH_FLAG;
constructor.constructorCall = superCall;
if (!asEnum) constructor.statements = new Statement[0];
injectMethod(innerNode, constructor);
if (asEnum) injectMethod(innerNode, new Clinit(parent.compilationResult));
for (EclipseNode fieldNode : fields) {
FieldDeclaration field = (FieldDeclaration) fieldNode.get();
char[] fName = field.name;
int pS = source.sourceStart, pE = source.sourceEnd;
long p = (long) pS << 32 | pE;
FieldDeclaration fieldConstant = new FieldDeclaration(fName, pS, pE);
fieldConstant.bits |= Eclipse.ECLIPSE_DO_NOT_TOUCH_FLAG;
fieldConstant.modifiers = asEnum ? 0 : ClassFileConstants.AccPublic | ClassFileConstants.AccStatic | ClassFileConstants.AccFinal;
fieldConstant.type = asEnum ? null : new QualifiedTypeReference(TypeConstants.JAVA_LANG_STRING, new long[] {p, p, p});
if (asEnum) {
AllocationExpression ac = new AllocationExpression();
ac.enumConstant = fieldConstant;
ac.sourceStart = source.sourceStart;
ac.sourceEnd = source.sourceEnd;
fieldConstant.initialization = ac;
} else {
fieldConstant.initialization = new StringLiteral(field.name, pS, pE, 0);
}
injectField(innerNode, fieldConstant);
}
}
}
|
