10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 package com.sun.tools.jextract;
25
26 import java.foreign.layout.Function;
27 import java.foreign.layout.Layout;
28 import java.nio.file.Files;
29 import java.nio.file.Path;
30 import java.util.Arrays;
31 import java.util.List;
32 import java.util.Optional;
33 import java.util.stream.Collectors;
34 import java.util.stream.Stream;
35 import javax.lang.model.SourceVersion;
36
37 import jdk.internal.clang.Cursor;
38 import jdk.internal.clang.CursorKind;
39 import jdk.internal.clang.Type;
40 import com.sun.tools.jextract.tree.LayoutUtils;
41 import jdk.internal.clang.TypeKind;
42
43 /**
44 * General utility functions
45 */
46 public class Utils {
47 public static void validSimpleIdentifier(String name) {
48 int length = name.length();
49 if (length == 0) {
50 throw new IllegalArgumentException();
51 }
52
53 int ch = name.codePointAt(0);
54 if (length == 1 && ch == '_') {
55 throw new IllegalArgumentException("'_' is no longer valid identifier.");
56 }
57
58 if (!Character.isJavaIdentifierStart(ch)) {
167 public static Optional<Cursor> lastChild(Cursor c) {
168 List<Cursor> children = flattenableChildren(c)
169 .collect(Collectors.toList());
170 return children.isEmpty() ? Optional.empty() : Optional.of(children.get(children.size() - 1));
171 }
172
173 public static boolean hasIncompleteArray(Cursor c) {
174 switch (c.kind()) {
175 case FieldDecl:
176 return c.type().kind() == TypeKind.IncompleteArray;
177 case UnionDecl:
178 return flattenableChildren(c)
179 .anyMatch(Utils::hasIncompleteArray);
180 case StructDecl:
181 return lastChild(c).map(Utils::hasIncompleteArray).orElse(false);
182 default:
183 throw new IllegalStateException("Unhandled cursor kind: " + c.kind());
184 }
185 }
186
187 // return the absolute path of the library of given name by searching
188 // in the given array of paths.
189 public static Optional<Path> findLibraryPath(Path[] paths, String libName) {
190 return Arrays.stream(paths).
191 map(p -> p.resolve(System.mapLibraryName(libName))).
192 filter(Files::isRegularFile).map(Path::toAbsolutePath).findFirst();
193 }
194 }
|
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
12 * version 2 for more details (a copy is included in the LICENSE file that
13 * accompanied this code).
14 *
15 * You should have received a copy of the GNU General Public License version
16 * 2 along with this work; if not, write to the Free Software Foundation,
17 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
18 *
19 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
20 * or visit www.oracle.com if you need additional information or have any
21 * questions.
22 */
23
24 package com.sun.tools.jextract;
25
26 import java.foreign.layout.Function;
27 import java.foreign.layout.Layout;
28 import java.nio.file.Files;
29 import java.nio.file.Path;
30 import java.util.ArrayList;
31 import java.util.Arrays;
32 import java.util.List;
33 import java.util.Optional;
34 import java.util.stream.Collectors;
35 import java.util.stream.Stream;
36 import javax.lang.model.SourceVersion;
37
38 import jdk.internal.clang.Cursor;
39 import jdk.internal.clang.CursorKind;
40 import jdk.internal.clang.SourceLocation;
41 import jdk.internal.clang.Type;
42 import com.sun.tools.jextract.tree.LayoutUtils;
43 import jdk.internal.clang.TypeKind;
44
45 /**
46 * General utility functions
47 */
48 public class Utils {
49 public static void validSimpleIdentifier(String name) {
50 int length = name.length();
51 if (length == 0) {
52 throw new IllegalArgumentException();
53 }
54
55 int ch = name.codePointAt(0);
56 if (length == 1 && ch == '_') {
57 throw new IllegalArgumentException("'_' is no longer valid identifier.");
58 }
59
60 if (!Character.isJavaIdentifierStart(ch)) {
169 public static Optional<Cursor> lastChild(Cursor c) {
170 List<Cursor> children = flattenableChildren(c)
171 .collect(Collectors.toList());
172 return children.isEmpty() ? Optional.empty() : Optional.of(children.get(children.size() - 1));
173 }
174
175 public static boolean hasIncompleteArray(Cursor c) {
176 switch (c.kind()) {
177 case FieldDecl:
178 return c.type().kind() == TypeKind.IncompleteArray;
179 case UnionDecl:
180 return flattenableChildren(c)
181 .anyMatch(Utils::hasIncompleteArray);
182 case StructDecl:
183 return lastChild(c).map(Utils::hasIncompleteArray).orElse(false);
184 default:
185 throw new IllegalStateException("Unhandled cursor kind: " + c.kind());
186 }
187 }
188
189 // return builtin Record types accessible from the given Type
190 public static Stream<Cursor> getBuiltinRecordTypes(Type type) {
191 List<Cursor> recordTypes = new ArrayList<>();
192 fillBuiltinRecordTypes(type, recordTypes);
193 return recordTypes.stream().distinct();
194 }
195
196 private static void fillBuiltinRecordTypes(Type type, List<Cursor> recordTypes) {
197 switch (type.kind()) {
198 case ConstantArray:
199 case IncompleteArray:
200 fillBuiltinRecordTypes(type.getElementType().canonicalType(), recordTypes);
201 break;
202
203 case FunctionProto:
204 case FunctionNoProto: {
205 final int numArgs = type.numberOfArgs();
206 for (int i = 0; i < numArgs; i++) {
207 fillBuiltinRecordTypes(type.argType(i), recordTypes);
208 }
209 fillBuiltinRecordTypes(type.resultType(), recordTypes);
210 }
211 break;
212
213 case Record: {
214 Cursor c = type.getDeclarationCursor();
215 if (c.isDefinition()) {
216 SourceLocation sloc = c.getSourceLocation();
217 if (sloc != null && sloc.getFileLocation().path() == null) {
218 recordTypes.add(c);
219 }
220 }
221 }
222 break;
223
224 case BlockPointer:
225 case Pointer:
226 fillBuiltinRecordTypes(type.getPointeeType().canonicalType(), recordTypes);
227 break;
228
229 case Unexposed:
230 case Elaborated:
231 case Typedef:
232 fillBuiltinRecordTypes(type.canonicalType(), recordTypes);
233 break;
234
235 default: // nothing to do
236 }
237 }
238
239 // return the absolute path of the library of given name by searching
240 // in the given array of paths.
241 public static Optional<Path> findLibraryPath(Path[] paths, String libName) {
242 return Arrays.stream(paths).
243 map(p -> p.resolve(System.mapLibraryName(libName))).
244 filter(Files::isRegularFile).map(Path::toAbsolutePath).findFirst();
245 }
246 }
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