-
Notifications
You must be signed in to change notification settings - Fork 316
/
Ecore2XtextExtensions.java
327 lines (290 loc) · 11.3 KB
/
Ecore2XtextExtensions.java
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
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
/**
* Copyright (c) 2015, 2020 itemis AG (http://www.itemis.eu) and others.
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License 2.0 which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* SPDX-License-Identifier: EPL-2.0
*/
package org.eclipse.xtext.xtext.wizard.ecore2xtext;
import java.util.ArrayList;
import java.util.Collection;
import java.util.Collections;
import java.util.List;
import java.util.Set;
import org.eclipse.emf.ecore.EAttribute;
import org.eclipse.emf.ecore.EClass;
import org.eclipse.emf.ecore.EClassifier;
import org.eclipse.emf.ecore.EDataType;
import org.eclipse.emf.ecore.EPackage;
import org.eclipse.emf.ecore.EReference;
import org.eclipse.emf.ecore.EStructuralFeature;
import org.eclipse.xtext.xbase.lib.IterableExtensions;
import org.eclipse.xtext.xtext.wizard.EPackageInfo;
import org.eclipse.xtext.xtext.wizard.Ecore2XtextConfiguration;
import com.google.common.base.Function;
import com.google.common.collect.Iterables;
import com.google.common.collect.Lists;
public class Ecore2XtextExtensions {
public static Iterable<EClassifier> allConcreteRuleClassifiers(Ecore2XtextConfiguration it) {
if (it.getRootElementClass() == null) {
return Iterables.filter(
IterableExtensions.toSet(Iterables.concat(Iterables.transform(it.getEPackageInfos(),
(EPackageInfo p) -> allReferencedClassifiers(p.getEPackage(), false)))),
(EClassifier c) -> needsConcreteRule(c));
} else {
ArrayList<EClassifier> c = Lists.newArrayList(EClassifier.class.cast(it.getRootElementClass()));
allAssignedClassifiers(it.getRootElementClass(), c);
return IterableExtensions.toSet(Iterables.filter(c, (EClassifier cl) -> needsConcreteRule(cl)));
}
}
public static Collection<EClass> allDispatcherRuleClasses(Ecore2XtextConfiguration it) {
if (it.getRootElementClass() == null) {
return IterableExtensions.toSet(Iterables.filter(Iterables.filter(
IterableExtensions.toSet(Iterables.concat(Iterables.transform(it.getEPackageInfos(),
(EPackageInfo p) -> allReferencedClassifiers(p.getEPackage(), false)))),
(EClassifier c) -> needsDispatcherRule(c)), EClass.class));
} else {
Function<EClass, ? extends Iterable<EClassifier>> toTypes = (EClass c) -> Iterables.transform(
Iterables.filter(c.getEAllReferences(), (EReference r) -> needsAssignment(r)),
EReference::getEType);
return IterableExtensions
.toSet(Iterables.filter(
Iterables.concat(Iterables.transform(
Iterables.filter(allConcreteRuleClassifiers(it), EClass.class), toTypes)),
EClass.class));
}
}
public static Collection<EPackage> allReferencedEPackages(Ecore2XtextConfiguration prjInfo) {
return IterableExtensions.toSet(Iterables.concat(Iterables.transform(prjInfo.getEPackageInfos(),
(EPackageInfo it) -> allReferencedEPackages(it.getEPackage(), true))));
}
public static Set<EPackage> allReferencedEPackages(EPackage ePack, boolean includeCrossRefs) {
return IterableExtensions.toSet(IterableExtensions.filterNull(
Iterables.transform(allReferencedClassifiers(ePack, includeCrossRefs), EClassifier::getEPackage)));
}
public static Set<EClassifier> allReferencedClassifiers(EPackage ePack, boolean includeCrossRefs) {
Iterable<Iterable<EStructuralFeature>> strFeatures = Iterables
.transform(Iterables.filter(ePack.getEClassifiers(), EClass.class), (EClass it) -> {
return Iterables.filter(it.getEAllStructuralFeatures(),
(EStructuralFeature f) -> needsAssignment(f) && (includeCrossRefs || isContainment(f)));
});
Set<EClassifier> refTypes = IterableExtensions
.toSet(Iterables.transform(Iterables.concat(strFeatures), (EStructuralFeature it) -> it.getEType()));
Set<EClassifier> retVal = IterableExtensions.toSet(Iterables.concat(ePack.getEClassifiers(), refTypes));
retVal.add(UniqueNameUtil.eString());
return retVal;
}
private static void allAssignedClassifiers(EClass eClazz, Collection<EClassifier> acceptor) {
List<EClassifier> classifiers = IterableExtensions.toList(Iterables.transform(
Iterables.filter(eClazz.getEAllStructuralFeatures(), (EStructuralFeature f) -> needsAssignment(f)),
(EStructuralFeature it) -> it.getEType()));
Iterables.addAll(classifiers, subClasses(eClazz));
classifiers.removeAll(acceptor);
if (classifiers.isEmpty()) {
return;
} else {
Iterables.addAll(acceptor, classifiers);
Iterables.filter(classifiers, EClass.class).forEach((EClass c) -> allAssignedClassifiers(c, acceptor));
}
}
public static String fqn(EClassifier it) {
EPackage ePackage = it.getEPackage();
String uniqueName = null;
if (ePackage != null) {
uniqueName = UniqueNameUtil.uniqueName(ePackage);
}
if (uniqueName == null) {
return quoteIfNeccesary(it.getName());
} else {
return UniqueNameUtil.uniqueName(it.getEPackage()) + "::" + quoteIfNeccesary(it.getName());
}
}
public static Iterable<EStructuralFeature> prefixFeatures(EClass it) {
return Iterables.filter(it.getEAllStructuralFeatures(),
(EStructuralFeature f) -> needsAssignment(f) && isPrefixBooleanFeature(f));
}
public static Iterable<EStructuralFeature> inlinedFeatures(EClass it) {
List<EStructuralFeature> features = IterableExtensions
.toList(Iterables.filter(it.getEAllStructuralFeatures(), (EStructuralFeature f) -> needsAssignment(f)));
features.remove(idAttribute(it));
features.removeAll(IterableExtensions.toList(prefixFeatures(it)));
return features;
}
public static boolean onlyOptionalFeatures(EClass it) {
Iterable<EStructuralFeature> features = Iterables.concat(prefixFeatures(it), inlinedFeatures(it));
return Iterables.isEmpty(Iterables.filter(features, (EStructuralFeature f) -> f.isRequired()));
}
public static String assignedRuleCall(EAttribute it) {
if (isPrefixBooleanFeature(it)) {
return "'" + it.getName() + "'";
} else {
return UniqueNameUtil.uniqueName(it.getEType());
}
}
public static String concreteRuleName(EClass it) {
if (needsDispatcherRule(it)) {
return UniqueNameUtil.uniqueImplName(it);
} else {
return UniqueNameUtil.uniqueName(it);
}
}
public static String dataTypeRuleBody(EDataType it) {
String name = it.getName();
if (name != null) {
switch (name) {
case "EBigDecimal":
return "INT? '.' INT";
case "EBigInteger":
return intRuleBody();
case "EBoolean":
return booleanRuleBody();
case "EBooleanObject":
return booleanRuleBody();
case "EByte":
return intRuleBody();
case "EByteObject":
return intRuleBody();
case "EChar":
return intRuleBody();
case "ECharObject":
return intRuleBody();
case "EDouble":
return decimalRuleBody();
case "EDoubleObject":
return decimalRuleBody();
case "EFloat":
return decimalRuleBody();
case "EFloatObject":
return decimalRuleBody();
case "EInt":
return intRuleBody();
case "EIntegerObject":
return intRuleBody();
case "ELong":
return intRuleBody();
case "ELongObject":
return intRuleBody();
case "EShort":
return intRuleBody();
case "EShortObject":
return intRuleBody();
case "EString":
return "STRING | ID";
default:
return "'" + it.getName() + "' /* TODO: implement this rule and an appropriate IValueConverter */";
}
} else {
return "'" + it.getName() + "' /* TODO: implement this rule and an appropriate IValueConverter */";
}
}
public static String intRuleBody() {
return "'-'? INT";
}
public static String decimalRuleBody() {
return "'-'? INT? '.' INT (('E'|'e') '-'? INT)?";
}
public static String booleanRuleBody() {
return "'true' | 'false'";
}
public static String assignmentKeyword(EStructuralFeature it) {
if (isPrefixBooleanFeature(it)) {
return "";
} else {
return "'" + it.getName() + "' ";
}
}
public static String quoteIfNeccesary(String str) {
if (isXtextKeyword(str)) {
return "^" + str;
} else {
return str;
}
}
public static boolean isXtextKeyword(String str) {
return Lists.newArrayList("returns", "generate", "terminal", "with", "hidden", "enum", "grammar", "import",
"as", "current", "fragment", "EOF").contains(str);
}
public static EAttribute idAttribute(EClass it) {
EAttribute idAttr = idAttributeInternal(it);
if (idAttr != null) {
return idAttr;
} else {
return IterableExtensions.findFirst(it.getEAllAttributes(), (EAttribute a) -> needsAssignment(a)
&& "name".equals(a.getName()) && "EString".equals(a.getEType().getName()) && !a.isMany());
}
}
private static EAttribute idAttributeInternal(EClass it) {
return IterableExtensions.findFirst(it.getEAllAttributes(), (EAttribute a) -> needsAssignment(a) && a.isID());
}
public static boolean isBoolean(EClassifier it) {
return it instanceof EDataType && Lists.newArrayList("EBoolean", "EBooleanObject").contains(it.getName())
&& isEcoreType(it);
}
public static boolean isPrefixBooleanFeature(EStructuralFeature it) {
return isBoolean(it.getEType()) && !it.isMany() && !"true".equals(it.getDefaultValueLiteral());
}
public static boolean isString(EClassifier it) {
return it instanceof EDataType && "EString".equals(it.getName()) && isEcoreType(it);
}
public static boolean isEcoreType(EClassifier it) {
EPackage ePackage = it.getEPackage();
String nsURI = null;
if (ePackage != null) {
nsURI = ePackage.getNsURI();
}
return "http://www.eclipse.org/emf/2002/Ecore".equals(nsURI);
}
public static boolean isID(EStructuralFeature it) {
return it instanceof EAttribute && EAttribute.class.cast(it).isID();
}
public static boolean needsAssignment(EStructuralFeature it) {
return it.isChangeable() && !it.isDerived() && !it.isTransient()
&& !(it instanceof EReference && EReference.class.cast(it).isContainer())
&& !(it.getEType() instanceof EDataType && !EDataType.class.cast(it.getEType()).isSerializable());
}
public static boolean needsConcreteRule(EClassifier eClassifier) {
if (eClassifier instanceof EClass) {
EClass eClass = (EClass) eClassifier;
return !eClass.isAbstract() && !eClass.isInterface();
} else {
return true;
}
}
public static boolean needsDispatcherRule(EClassifier eClassifier) {
if (eClassifier instanceof EClass) {
return !Iterables
.isEmpty(Iterables.filter(subClasses((EClass) eClassifier), (EClass c) -> needsConcreteRule(c)));
} else {
return false;
}
}
public static boolean isContainment(EStructuralFeature eStrFeat) {
if (eStrFeat instanceof EAttribute) {
return true;
} else if (eStrFeat instanceof EReference) {
return ((EReference) eStrFeat).isContainment();
} else {
return false;
}
}
public static Iterable<EClass> subClasses(EClass it) {
if (it.getEPackage() == null) {
return Collections.emptyList();
} else {
return Iterables.filter(Iterables.filter(it.getEPackage().getEClassifiers(), EClass.class),
(EClass c) -> c.getEAllSuperTypes().contains(it));
}
}
public static Iterable<EAttribute> allAttributes(EClass it) {
return Iterables.filter(inlinedFeatures(it), EAttribute.class);
}
public static Iterable<EReference> allCrossReferences(EClass it) {
return Iterables.filter(Iterables.filter(inlinedFeatures(it), EReference.class),
(EReference f) -> !f.isContainment());
}
public static Iterable<EReference> allContainmentReferences(EClass it) {
return Iterables.filter(Iterables.filter(inlinedFeatures(it), EReference.class),
(EReference f) -> f.isContainment());
}
}