24 */
25
26 package com.sun.tools.javac.comp;
27
28 import java.util.ArrayList;
29 import java.util.HashSet;
30 import java.util.Set;
31 import java.util.function.BiConsumer;
32 import java.util.stream.Collectors;
33
34 import javax.tools.JavaFileObject;
35
36 import com.sun.tools.javac.code.*;
37 import com.sun.tools.javac.code.Lint.LintCategory;
38 import com.sun.tools.javac.code.Scope.ImportFilter;
39 import com.sun.tools.javac.code.Scope.NamedImportScope;
40 import com.sun.tools.javac.code.Scope.StarImportScope;
41 import com.sun.tools.javac.code.Scope.WriteableScope;
42 import com.sun.tools.javac.code.Source.Feature;
43 import com.sun.tools.javac.comp.Annotate.AnnotationTypeMetadata;
44 import com.sun.tools.javac.tree.*;
45 import com.sun.tools.javac.util.*;
46 import com.sun.tools.javac.util.DefinedBy.Api;
47
48 import com.sun.tools.javac.code.Symbol.*;
49 import com.sun.tools.javac.code.Type.*;
50 import com.sun.tools.javac.resources.CompilerProperties.Errors;
51 import com.sun.tools.javac.tree.JCTree.*;
52
53 import static com.sun.tools.javac.code.Flags.*;
54 import static com.sun.tools.javac.code.Flags.ANNOTATION;
55 import static com.sun.tools.javac.code.Scope.LookupKind.NON_RECURSIVE;
56 import static com.sun.tools.javac.code.Kinds.Kind.*;
57 import static com.sun.tools.javac.code.TypeTag.CLASS;
58 import static com.sun.tools.javac.code.TypeTag.ERROR;
59 import com.sun.tools.javac.resources.CompilerProperties.Fragments;
60
61 import static com.sun.tools.javac.code.TypeTag.*;
62 import static com.sun.tools.javac.tree.JCTree.Tag.*;
63
64 import com.sun.tools.javac.util.Dependencies.CompletionCause;
65 import com.sun.tools.javac.util.JCDiagnostic.DiagnosticFlag;
66 import com.sun.tools.javac.util.JCDiagnostic.DiagnosticPosition;
67
68 /** This is the second phase of Enter, in which classes are completed
69 * by resolving their headers and entering their members in the into
70 * the class scope. See Enter for an overall overview.
71 *
72 * This class uses internal phases to process the classes. When a phase
73 * processes classes, the lower phases are not invoked until all classes
74 * pass through the current phase. Note that it is possible that upper phases
1092 (types.supertype(tree.sym.type).tsym.flags() & Flags.ENUM) == 0) {
1093 addEnumMembers(tree, env);
1094 }
1095 boolean isRecord = (tree.sym.flags_field & RECORD) != 0;
1096 List<JCTree> alreadyEntered = null;
1097 if (isRecord) {
1098 alreadyEntered = List.convert(JCTree.class, TreeInfo.recordFields(tree));
1099 alreadyEntered = alreadyEntered.prependList(tree.defs.stream()
1100 .filter(t -> TreeInfo.isConstructor(t) && t != defaultConstructor).collect(List.collector()));
1101 }
1102 List<JCTree> defsToEnter = isRecord ?
1103 tree.defs.diff(alreadyEntered) : tree.defs;
1104 memberEnter.memberEnter(defsToEnter, env);
1105 if (isRecord) {
1106 addRecordMembersIfNeeded(tree, env);
1107 }
1108 if (tree.sym.isAnnotationType()) {
1109 Assert.check(tree.sym.isCompleted());
1110 tree.sym.setAnnotationTypeMetadata(new AnnotationTypeMetadata(tree.sym, annotate.annotationTypeSourceCompleter()));
1111 }
1112 }
1113
1114 private void addAccessor(JCVariableDecl tree, Env<AttrContext> env) {
1115 MethodSymbol implSym = lookupMethod(env.enclClass.sym, tree.sym.name, List.nil());
1116 RecordComponent rec = ((ClassSymbol) tree.sym.owner).getRecordComponent(tree.sym);
1117 if (implSym == null || (implSym.flags_field & GENERATED_MEMBER) != 0) {
1118 /* here we are pushing the annotations present in the corresponding field down to the accessor
1119 * it could be that some of those annotations are not applicable to the accessor, they will be striped
1120 * away later at Check::validateAnnotation
1121 */
1122 TreeCopier<JCTree> tc = new TreeCopier<JCTree>(make.at(tree.pos));
1123 List<JCAnnotation> originalAnnos = rec.getOriginalAnnos().isEmpty() ?
1124 rec.getOriginalAnnos() :
1125 tc.copy(rec.getOriginalAnnos());
1126 JCVariableDecl recordField = TreeInfo.recordFields((JCClassDecl) env.tree).stream().filter(rf -> rf.name == tree.name).findAny().get();
1127 JCMethodDecl getter = make.at(tree.pos).
1128 MethodDef(
1129 make.Modifiers(PUBLIC | Flags.GENERATED_MEMBER, originalAnnos),
1130 tree.sym.name,
1131 /* we need to special case for the case when the user declared the type as an ident
1132 * if we don't do that then we can have issues if type annotations are applied to the
1133 * return type: javac issues an error if a type annotation is applied to java.lang.String
|
24 */
25
26 package com.sun.tools.javac.comp;
27
28 import java.util.ArrayList;
29 import java.util.HashSet;
30 import java.util.Set;
31 import java.util.function.BiConsumer;
32 import java.util.stream.Collectors;
33
34 import javax.tools.JavaFileObject;
35
36 import com.sun.tools.javac.code.*;
37 import com.sun.tools.javac.code.Lint.LintCategory;
38 import com.sun.tools.javac.code.Scope.ImportFilter;
39 import com.sun.tools.javac.code.Scope.NamedImportScope;
40 import com.sun.tools.javac.code.Scope.StarImportScope;
41 import com.sun.tools.javac.code.Scope.WriteableScope;
42 import com.sun.tools.javac.code.Source.Feature;
43 import com.sun.tools.javac.comp.Annotate.AnnotationTypeMetadata;
44 import com.sun.tools.javac.jvm.Target;
45 import com.sun.tools.javac.tree.*;
46 import com.sun.tools.javac.util.*;
47 import com.sun.tools.javac.util.DefinedBy.Api;
48
49 import com.sun.tools.javac.code.Symbol.*;
50 import com.sun.tools.javac.code.Type.*;
51 import com.sun.tools.javac.resources.CompilerProperties.Errors;
52 import com.sun.tools.javac.tree.JCTree.*;
53
54 import static com.sun.tools.javac.code.Flags.*;
55 import static com.sun.tools.javac.code.Flags.ANNOTATION;
56 import static com.sun.tools.javac.code.Flags.SYNCHRONIZED;
57 import static com.sun.tools.javac.code.Scope.LookupKind.NON_RECURSIVE;
58 import static com.sun.tools.javac.code.Kinds.Kind.*;
59 import static com.sun.tools.javac.code.TypeTag.CLASS;
60 import static com.sun.tools.javac.code.TypeTag.ERROR;
61 import com.sun.tools.javac.resources.CompilerProperties.Fragments;
62
63 import static com.sun.tools.javac.code.TypeTag.*;
64 import static com.sun.tools.javac.tree.JCTree.Tag.*;
65
66 import com.sun.tools.javac.util.Dependencies.CompletionCause;
67 import com.sun.tools.javac.util.JCDiagnostic.DiagnosticFlag;
68 import com.sun.tools.javac.util.JCDiagnostic.DiagnosticPosition;
69
70 /** This is the second phase of Enter, in which classes are completed
71 * by resolving their headers and entering their members in the into
72 * the class scope. See Enter for an overall overview.
73 *
74 * This class uses internal phases to process the classes. When a phase
75 * processes classes, the lower phases are not invoked until all classes
76 * pass through the current phase. Note that it is possible that upper phases
1094 (types.supertype(tree.sym.type).tsym.flags() & Flags.ENUM) == 0) {
1095 addEnumMembers(tree, env);
1096 }
1097 boolean isRecord = (tree.sym.flags_field & RECORD) != 0;
1098 List<JCTree> alreadyEntered = null;
1099 if (isRecord) {
1100 alreadyEntered = List.convert(JCTree.class, TreeInfo.recordFields(tree));
1101 alreadyEntered = alreadyEntered.prependList(tree.defs.stream()
1102 .filter(t -> TreeInfo.isConstructor(t) && t != defaultConstructor).collect(List.collector()));
1103 }
1104 List<JCTree> defsToEnter = isRecord ?
1105 tree.defs.diff(alreadyEntered) : tree.defs;
1106 memberEnter.memberEnter(defsToEnter, env);
1107 if (isRecord) {
1108 addRecordMembersIfNeeded(tree, env);
1109 }
1110 if (tree.sym.isAnnotationType()) {
1111 Assert.check(tree.sym.isCompleted());
1112 tree.sym.setAnnotationTypeMetadata(new AnnotationTypeMetadata(tree.sym, annotate.annotationTypeSourceCompleter()));
1113 }
1114
1115 if (tree.sym != syms.objectType.tsym && tree.sym != syms.recordType.tsym) {
1116 if ((tree.sym.flags() & (ABSTRACT | INTERFACE | VALUE_CLASS)) == 0) {
1117 tree.sym.flags_field |= IDENTITY_TYPE;
1118 }
1119 if ((tree.sym.flags() & (ABSTRACT | IDENTITY_TYPE | INTERFACE)) == ABSTRACT) {
1120 if (abstractClassHasImplicitIdentity(tree)) {
1121 tree.sym.flags_field |= IDENTITY_TYPE;
1122 }
1123 }
1124 }
1125 }
1126
1127 // where
1128 private boolean abstractClassHasImplicitIdentity(JCClassDecl tree) {
1129
1130 Type t = tree.sym.type;
1131
1132 if (t == null || t.tsym == null || t.tsym.kind == ERR)
1133 return false;
1134
1135 if ((t.tsym.flags() & HASINITBLOCK) != 0) {
1136 return true;
1137 }
1138
1139 // No instance fields and no arged constructors both mean inner classes cannot be value class supers.
1140 Type encl = t.getEnclosingType();
1141 if (encl != null && encl.hasTag(CLASS)) {
1142 return true;
1143 }
1144 for (Symbol s : t.tsym.members().getSymbols(NON_RECURSIVE)) {
1145 switch (s.kind) {
1146 case VAR:
1147 if ((s.flags() & STATIC) == 0) {
1148 return true;
1149 }
1150 break;
1151 case MTH:
1152 if ((s.flags() & (SYNCHRONIZED | STATIC)) == SYNCHRONIZED) {
1153 return true;
1154 } else if (s.isConstructor()) {
1155 MethodSymbol m = (MethodSymbol)s;
1156 if (m.getParameters().size() > 0
1157 || m.getTypeParameters().size() > 0
1158 || m.type.getThrownTypes().nonEmpty()
1159 || (m.flags() & EMPTYNOARGCONSTR) == 0
1160 || (Check.protection(m.flags()) > Check.protection(m.owner.flags()))) {
1161 return true;
1162 }
1163 }
1164 break;
1165 }
1166 }
1167 return false;
1168 }
1169
1170
1171 private void addAccessor(JCVariableDecl tree, Env<AttrContext> env) {
1172 MethodSymbol implSym = lookupMethod(env.enclClass.sym, tree.sym.name, List.nil());
1173 RecordComponent rec = ((ClassSymbol) tree.sym.owner).getRecordComponent(tree.sym);
1174 if (implSym == null || (implSym.flags_field & GENERATED_MEMBER) != 0) {
1175 /* here we are pushing the annotations present in the corresponding field down to the accessor
1176 * it could be that some of those annotations are not applicable to the accessor, they will be striped
1177 * away later at Check::validateAnnotation
1178 */
1179 TreeCopier<JCTree> tc = new TreeCopier<JCTree>(make.at(tree.pos));
1180 List<JCAnnotation> originalAnnos = rec.getOriginalAnnos().isEmpty() ?
1181 rec.getOriginalAnnos() :
1182 tc.copy(rec.getOriginalAnnos());
1183 JCVariableDecl recordField = TreeInfo.recordFields((JCClassDecl) env.tree).stream().filter(rf -> rf.name == tree.name).findAny().get();
1184 JCMethodDecl getter = make.at(tree.pos).
1185 MethodDef(
1186 make.Modifiers(PUBLIC | Flags.GENERATED_MEMBER, originalAnnos),
1187 tree.sym.name,
1188 /* we need to special case for the case when the user declared the type as an ident
1189 * if we don't do that then we can have issues if type annotations are applied to the
1190 * return type: javac issues an error if a type annotation is applied to java.lang.String
|