14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package com.sun.tools.javac.comp;
27
28 import com.sun.tools.javac.util.*;
29 import com.sun.tools.javac.code.*;
30 import com.sun.tools.javac.code.Symbol.*;
31 import com.sun.tools.javac.tree.*;
32 import com.sun.tools.javac.tree.JCTree.*;
33
34 /** Enter annotations on symbols. Annotations accumulate in a queue,
35 * which is processed at the top level of any set of recursive calls
36 * requesting it be processed.
37 *
38 * <p><b>This is NOT part of any supported API.
39 * If you write code that depends on this, you do so at your own risk.
40 * This code and its internal interfaces are subject to change or
41 * deletion without notice.</b>
42 */
43 public class Annotate {
44 protected static final Context.Key<Annotate> annotateKey =
45 new Context.Key<Annotate>();
46
47 public static Annotate instance(Context context) {
48 Annotate instance = context.get(annotateKey);
49 if (instance == null)
50 instance = new Annotate(context);
51 return instance;
52 }
53
131 * Attribute. Used from MemberEnter for attaching the attributes
132 * to the annotated symbol.
133 */
134 Attribute.Compound enterAnnotation(JCAnnotation a,
135 Type expected,
136 Env<AttrContext> env) {
137 // The annotation might have had its type attributed (but not checked)
138 // by attr.attribAnnotationTypes during MemberEnter, in which case we do not
139 // need to do it again.
140 Type at = (a.annotationType.type != null ? a.annotationType.type
141 : attr.attribType(a.annotationType, env));
142 a.type = chk.checkType(a.annotationType.pos(), at, expected);
143 if (a.type.isErroneous())
144 return new Attribute.Compound(a.type, List.<Pair<MethodSymbol,Attribute>>nil());
145 if ((a.type.tsym.flags() & Flags.ANNOTATION) == 0) {
146 log.error(a.annotationType.pos(),
147 "not.annotation.type", a.type.toString());
148 return new Attribute.Compound(a.type, List.<Pair<MethodSymbol,Attribute>>nil());
149 }
150 List<JCExpression> args = a.args;
151 if (args.length() == 1 && args.head.getTag() != JCTree.ASSIGN) {
152 // special case: elided "value=" assumed
153 args.head = make.at(args.head.pos).
154 Assign(make.Ident(names.value), args.head);
155 }
156 ListBuffer<Pair<MethodSymbol,Attribute>> buf =
157 new ListBuffer<Pair<MethodSymbol,Attribute>>();
158 for (List<JCExpression> tl = args; tl.nonEmpty(); tl = tl.tail) {
159 JCExpression t = tl.head;
160 if (t.getTag() != JCTree.ASSIGN) {
161 log.error(t.pos(), "annotation.value.must.be.name.value");
162 continue;
163 }
164 JCAssign assign = (JCAssign)t;
165 if (assign.lhs.getTag() != JCTree.IDENT) {
166 log.error(t.pos(), "annotation.value.must.be.name.value");
167 continue;
168 }
169 JCIdent left = (JCIdent)assign.lhs;
170 Symbol method = rs.resolveQualifiedMethod(left.pos(),
171 env,
172 a.type,
173 left.name,
174 List.<Type>nil(),
175 null);
176 left.sym = method;
177 left.type = method.type;
178 if (method.owner != a.type.tsym)
179 log.error(left.pos(), "no.annotation.member", left.name, a.type);
180 Type result = method.type.getReturnType();
181 Attribute value = enterAttributeValue(result, assign.rhs, env);
182 if (!method.type.isErroneous())
183 buf.append(new Pair<MethodSymbol,Attribute>
184 ((MethodSymbol)method, value));
185 t.type = result;
205 return new Attribute.Error(expected);
206 if (result.constValue() == null) {
207 log.error(tree.pos(), "attribute.value.must.be.constant");
208 return new Attribute.Error(expected);
209 }
210 result = cfolder.coerce(result, expected);
211 return new Attribute.Constant(expected, result.constValue());
212 }
213 if (expected.tsym == syms.classType.tsym) {
214 Type result = attr.attribExpr(tree, env, expected);
215 if (result.isErroneous())
216 return new Attribute.Error(expected);
217 if (TreeInfo.name(tree) != names._class) {
218 log.error(tree.pos(), "annotation.value.must.be.class.literal");
219 return new Attribute.Error(expected);
220 }
221 return new Attribute.Class(types,
222 (((JCFieldAccess) tree).selected).type);
223 }
224 if ((expected.tsym.flags() & Flags.ANNOTATION) != 0) {
225 if (tree.getTag() != JCTree.ANNOTATION) {
226 log.error(tree.pos(), "annotation.value.must.be.annotation");
227 expected = syms.errorType;
228 }
229 return enterAnnotation((JCAnnotation)tree, expected, env);
230 }
231 if (expected.tag == TypeTags.ARRAY) { // should really be isArray()
232 if (tree.getTag() != JCTree.NEWARRAY) {
233 tree = make.at(tree.pos).
234 NewArray(null, List.<JCExpression>nil(), List.of(tree));
235 }
236 JCNewArray na = (JCNewArray)tree;
237 if (na.elemtype != null) {
238 log.error(na.elemtype.pos(), "new.not.allowed.in.annotation");
239 return new Attribute.Error(expected);
240 }
241 ListBuffer<Attribute> buf = new ListBuffer<Attribute>();
242 for (List<JCExpression> l = na.elems; l.nonEmpty(); l=l.tail) {
243 buf.append(enterAttributeValue(types.elemtype(expected),
244 l.head,
245 env));
246 }
247 na.type = expected;
248 return new Attribute.
249 Array(expected, buf.toArray(new Attribute[buf.length()]));
250 }
251 if (expected.tag == TypeTags.CLASS &&
252 (expected.tsym.flags() & Flags.ENUM) != 0) {
|
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 package com.sun.tools.javac.comp;
27
28 import com.sun.tools.javac.util.*;
29 import com.sun.tools.javac.code.*;
30 import com.sun.tools.javac.code.Symbol.*;
31 import com.sun.tools.javac.tree.*;
32 import com.sun.tools.javac.tree.JCTree.*;
33
34 import static com.sun.tools.javac.tree.JCTree.Tag.*;
35
36 /** Enter annotations on symbols. Annotations accumulate in a queue,
37 * which is processed at the top level of any set of recursive calls
38 * requesting it be processed.
39 *
40 * <p><b>This is NOT part of any supported API.
41 * If you write code that depends on this, you do so at your own risk.
42 * This code and its internal interfaces are subject to change or
43 * deletion without notice.</b>
44 */
45 public class Annotate {
46 protected static final Context.Key<Annotate> annotateKey =
47 new Context.Key<Annotate>();
48
49 public static Annotate instance(Context context) {
50 Annotate instance = context.get(annotateKey);
51 if (instance == null)
52 instance = new Annotate(context);
53 return instance;
54 }
55
133 * Attribute. Used from MemberEnter for attaching the attributes
134 * to the annotated symbol.
135 */
136 Attribute.Compound enterAnnotation(JCAnnotation a,
137 Type expected,
138 Env<AttrContext> env) {
139 // The annotation might have had its type attributed (but not checked)
140 // by attr.attribAnnotationTypes during MemberEnter, in which case we do not
141 // need to do it again.
142 Type at = (a.annotationType.type != null ? a.annotationType.type
143 : attr.attribType(a.annotationType, env));
144 a.type = chk.checkType(a.annotationType.pos(), at, expected);
145 if (a.type.isErroneous())
146 return new Attribute.Compound(a.type, List.<Pair<MethodSymbol,Attribute>>nil());
147 if ((a.type.tsym.flags() & Flags.ANNOTATION) == 0) {
148 log.error(a.annotationType.pos(),
149 "not.annotation.type", a.type.toString());
150 return new Attribute.Compound(a.type, List.<Pair<MethodSymbol,Attribute>>nil());
151 }
152 List<JCExpression> args = a.args;
153 if (args.length() == 1 && !args.head.hasTag(ASSIGN)) {
154 // special case: elided "value=" assumed
155 args.head = make.at(args.head.pos).
156 Assign(make.Ident(names.value), args.head);
157 }
158 ListBuffer<Pair<MethodSymbol,Attribute>> buf =
159 new ListBuffer<Pair<MethodSymbol,Attribute>>();
160 for (List<JCExpression> tl = args; tl.nonEmpty(); tl = tl.tail) {
161 JCExpression t = tl.head;
162 if (!t.hasTag(ASSIGN)) {
163 log.error(t.pos(), "annotation.value.must.be.name.value");
164 continue;
165 }
166 JCAssign assign = (JCAssign)t;
167 if (!assign.lhs.hasTag(IDENT)) {
168 log.error(t.pos(), "annotation.value.must.be.name.value");
169 continue;
170 }
171 JCIdent left = (JCIdent)assign.lhs;
172 Symbol method = rs.resolveQualifiedMethod(left.pos(),
173 env,
174 a.type,
175 left.name,
176 List.<Type>nil(),
177 null);
178 left.sym = method;
179 left.type = method.type;
180 if (method.owner != a.type.tsym)
181 log.error(left.pos(), "no.annotation.member", left.name, a.type);
182 Type result = method.type.getReturnType();
183 Attribute value = enterAttributeValue(result, assign.rhs, env);
184 if (!method.type.isErroneous())
185 buf.append(new Pair<MethodSymbol,Attribute>
186 ((MethodSymbol)method, value));
187 t.type = result;
207 return new Attribute.Error(expected);
208 if (result.constValue() == null) {
209 log.error(tree.pos(), "attribute.value.must.be.constant");
210 return new Attribute.Error(expected);
211 }
212 result = cfolder.coerce(result, expected);
213 return new Attribute.Constant(expected, result.constValue());
214 }
215 if (expected.tsym == syms.classType.tsym) {
216 Type result = attr.attribExpr(tree, env, expected);
217 if (result.isErroneous())
218 return new Attribute.Error(expected);
219 if (TreeInfo.name(tree) != names._class) {
220 log.error(tree.pos(), "annotation.value.must.be.class.literal");
221 return new Attribute.Error(expected);
222 }
223 return new Attribute.Class(types,
224 (((JCFieldAccess) tree).selected).type);
225 }
226 if ((expected.tsym.flags() & Flags.ANNOTATION) != 0) {
227 if (!tree.hasTag(ANNOTATION)) {
228 log.error(tree.pos(), "annotation.value.must.be.annotation");
229 expected = syms.errorType;
230 }
231 return enterAnnotation((JCAnnotation)tree, expected, env);
232 }
233 if (expected.tag == TypeTags.ARRAY) { // should really be isArray()
234 if (!tree.hasTag(NEWARRAY)) {
235 tree = make.at(tree.pos).
236 NewArray(null, List.<JCExpression>nil(), List.of(tree));
237 }
238 JCNewArray na = (JCNewArray)tree;
239 if (na.elemtype != null) {
240 log.error(na.elemtype.pos(), "new.not.allowed.in.annotation");
241 return new Attribute.Error(expected);
242 }
243 ListBuffer<Attribute> buf = new ListBuffer<Attribute>();
244 for (List<JCExpression> l = na.elems; l.nonEmpty(); l=l.tail) {
245 buf.append(enterAttributeValue(types.elemtype(expected),
246 l.head,
247 env));
248 }
249 na.type = expected;
250 return new Attribute.
251 Array(expected, buf.toArray(new Attribute[buf.length()]));
252 }
253 if (expected.tag == TypeTags.CLASS &&
254 (expected.tsym.flags() & Flags.ENUM) != 0) {
|