53 // - being not exported, to being exported either in a qualified or unqualified manner
54 // - being qualifiedly exported, to unqualifiedly exported. Its exported scope is widened.
55 //
56 // A package cannot transition from:
57 // - being unqualifiedly exported, to exported qualifiedly to a specific module.
58 // This transition attempt is silently ignored in set_exported.
59 //
60 // The Mutex Module_lock is shared between ModuleEntry and PackageEntry, to lock either
61 // data structure.
62 class PackageEntry : public HashtableEntry<Symbol*, mtModule> {
63 private:
64 ModuleEntry* _module;
65 // Used to indicate for packages with classes loaded by the boot loader that
66 // a class in that package has been loaded. And, for packages with classes
67 // loaded by the boot loader from -Xbootclasspath/a in an unnamed module, it
68 // indicates from which class path entry.
69 s2 _classpath_index;
70 bool _is_exported_unqualified;
71 bool _is_exported_allUnnamed;
72 bool _must_walk_exports;
73 GrowableArray<ModuleEntry*>* _exported_pending_delete; // transitioned from qualified to unqualified, delete at safepoint
74 GrowableArray<ModuleEntry*>* _qualified_exports;
75 TRACE_DEFINE_TRACE_ID_FIELD;
76
77 // Initial size of a package entry's list of qualified exports.
78 enum {QUAL_EXP_SIZE = 43};
79
80 public:
81 void init() {
82 _module = NULL;
83 _classpath_index = -1;
84 _is_exported_unqualified = false;
85 _is_exported_allUnnamed = false;
86 _must_walk_exports = false;
87 _exported_pending_delete = NULL;
88 _qualified_exports = NULL;
89 }
90
91 // package name
92 Symbol* name() const { return literal(); }
93 void set_name(Symbol* n) { set_literal(n); }
94
95 // the module containing the package definition
96 ModuleEntry* module() const { return _module; }
97 void set_module(ModuleEntry* m) { _module = m; }
98
99 // package's export state
100 bool is_exported() const { // qualifiedly or unqualifiedly exported
101 return (is_unqual_exported() || has_qual_exports_list() || is_exported_allUnnamed());
102 }
103 // Returns true if the package has any explicit qualified exports or is exported to all unnamed
104 bool is_qual_exported() const {
105 return (has_qual_exports_list() || is_exported_allUnnamed());
106 }
107 // Returns true if there are any explicit qualified exports
108 bool has_qual_exports_list() const {
109 assert(!(_qualified_exports != NULL && _is_exported_unqualified),
110 "_qualified_exports set at same time as _is_exported_unqualified");
111 return (_qualified_exports != NULL);
112 }
113 bool is_exported_allUnnamed() const {
114 assert(!(_is_exported_allUnnamed && _is_exported_unqualified),
115 "_is_exported_allUnnamed set at same time as _is_exported_unqualified");
116 return _is_exported_allUnnamed;
117 }
118 bool is_unqual_exported() const {
119 assert(!(_qualified_exports != NULL && _is_exported_unqualified),
120 "_qualified_exports set at same time as _is_exported_unqualified");
121 assert(!(_is_exported_allUnnamed && _is_exported_unqualified),
122 "_is_exported_allUnnamed set at same time as _is_exported_unqualified");
123 return _is_exported_unqualified;
124 }
125 void set_unqual_exported() {
126 assert(Module_lock->owned_by_self(), "should have the Module_lock");
127 _is_exported_unqualified = true;
128 _is_exported_allUnnamed = false;
129 _qualified_exports = NULL;
130 }
131 bool exported_pending_delete() const { return (_exported_pending_delete != NULL); }
132
133 void set_exported(ModuleEntry* m);
134
135 void set_is_exported_allUnnamed();
136
137 void set_classpath_index(s2 classpath_index) {
138 _classpath_index = classpath_index;
139 }
140 s2 classpath_index() const { return _classpath_index; }
141
142 bool has_loaded_class() const { return _classpath_index != -1; }
143
144 // returns true if the package is defined in the unnamed module
145 bool in_unnamed_module() const { return !_module->is_named(); }
146
147 // returns true if the package specifies m as a qualified export, including through an unnamed export
148 bool is_qexported_to(ModuleEntry* m) const;
149
150 // add the module to the package's qualified exports
151 void add_qexport(ModuleEntry* m);
|
53 // - being not exported, to being exported either in a qualified or unqualified manner
54 // - being qualifiedly exported, to unqualifiedly exported. Its exported scope is widened.
55 //
56 // A package cannot transition from:
57 // - being unqualifiedly exported, to exported qualifiedly to a specific module.
58 // This transition attempt is silently ignored in set_exported.
59 //
60 // The Mutex Module_lock is shared between ModuleEntry and PackageEntry, to lock either
61 // data structure.
62 class PackageEntry : public HashtableEntry<Symbol*, mtModule> {
63 private:
64 ModuleEntry* _module;
65 // Used to indicate for packages with classes loaded by the boot loader that
66 // a class in that package has been loaded. And, for packages with classes
67 // loaded by the boot loader from -Xbootclasspath/a in an unnamed module, it
68 // indicates from which class path entry.
69 s2 _classpath_index;
70 bool _is_exported_unqualified;
71 bool _is_exported_allUnnamed;
72 bool _must_walk_exports;
73 GrowableArray<ModuleEntry*>* _qualified_exports;
74 TRACE_DEFINE_TRACE_ID_FIELD;
75
76 // Initial size of a package entry's list of qualified exports.
77 enum {QUAL_EXP_SIZE = 43};
78
79 public:
80 void init() {
81 _module = NULL;
82 _classpath_index = -1;
83 _is_exported_unqualified = false;
84 _is_exported_allUnnamed = false;
85 _must_walk_exports = false;
86 _qualified_exports = NULL;
87 }
88
89 // package name
90 Symbol* name() const { return literal(); }
91 void set_name(Symbol* n) { set_literal(n); }
92
93 // the module containing the package definition
94 ModuleEntry* module() const { return _module; }
95 void set_module(ModuleEntry* m) { _module = m; }
96
97 // package's export state
98 bool is_exported() const { // qualifiedly or unqualifiedly exported
99 return (is_unqual_exported() || has_qual_exports_list() || is_exported_allUnnamed());
100 }
101 // Returns true if the package has any explicit qualified exports or is exported to all unnamed
102 bool is_qual_exported() const {
103 return (has_qual_exports_list() || is_exported_allUnnamed());
104 }
105 // Returns true if there are any explicit qualified exports
106 bool has_qual_exports_list() const {
107 return (!is_unqual_exported() && _qualified_exports != NULL);
108 }
109 bool is_exported_allUnnamed() const {
110 return (!is_unqual_exported() && _is_exported_allUnnamed);
111 }
112 bool is_unqual_exported() const {
113 return _is_exported_unqualified;
114 }
115 void set_unqual_exported() {
116 assert(Module_lock->owned_by_self(), "should have the Module_lock");
117 _is_exported_unqualified = true;
118 _is_exported_allUnnamed = false;
119 }
120 bool exported_pending_delete() const { return (is_unqual_exported() && _qualified_exports != NULL); }
121
122 void set_exported(ModuleEntry* m);
123
124 void set_is_exported_allUnnamed();
125
126 void set_classpath_index(s2 classpath_index) {
127 _classpath_index = classpath_index;
128 }
129 s2 classpath_index() const { return _classpath_index; }
130
131 bool has_loaded_class() const { return _classpath_index != -1; }
132
133 // returns true if the package is defined in the unnamed module
134 bool in_unnamed_module() const { return !_module->is_named(); }
135
136 // returns true if the package specifies m as a qualified export, including through an unnamed export
137 bool is_qexported_to(ModuleEntry* m) const;
138
139 // add the module to the package's qualified exports
140 void add_qexport(ModuleEntry* m);
|