47
48 /** J2SE1.4 = Merlin. */
49 JDK1_4("1.4", 48, 0),
50
51 /** JDK 5, codename Tiger. */
52 JDK1_5("1.5", 49, 0),
53
54 /** JDK 6. */
55 JDK1_6("1.6", 50, 0),
56
57 /** JDK 7. */
58 JDK1_7("1.7", 51, 0),
59
60 /** JDK 8. */
61 JDK1_8("1.8", 52, 0),
62
63 /** JDK 9. */
64 JDK1_9("1.9", 53, 0),
65
66 /** JDK 10, initially an alias for 9 */
67 JDK1_10("1.10", 53, 0);
68
69 private static final Context.Key<Target> targetKey = new Context.Key<>();
70
71 public static Target instance(Context context) {
72 Target instance = context.get(targetKey);
73 if (instance == null) {
74 Options options = Options.instance(context);
75 String targetString = options.get(TARGET);
76 if (targetString != null) instance = lookup(targetString);
77 if (instance == null) instance = DEFAULT;
78 context.put(targetKey, instance);
79 }
80 return instance;
81 }
82
83 public static final Target MIN = Target.JDK1_6;
84
85 private static final Target MAX = values()[values().length - 1];
86
87 private static final Map<String,Target> tab = new HashMap<>();
88 static {
89 for (Target t : values()) {
90 tab.put(t.name, t);
91 }
92 tab.put("5", JDK1_5);
93 tab.put("6", JDK1_6);
94 tab.put("7", JDK1_7);
95 tab.put("8", JDK1_8);
96 tab.put("9", JDK1_9);
97 tab.put("10", JDK1_10);
98 }
99
100 public final String name;
101 public final int majorVersion;
102 public final int minorVersion;
103 private Target(String name, int majorVersion, int minorVersion) {
104 this.name = name;
105 this.majorVersion = majorVersion;
106 this.minorVersion = minorVersion;
107 }
108
109 public static final Target DEFAULT = values()[values().length - 1];
110
111 public static Target lookup(String name) {
112 return tab.get(name);
113 }
114
115 /** Return the character to be used in constructing synthetic
116 * identifiers, where not specified by the JLS.
117 */
118 public char syntheticNameChar() {
119 return '$';
120 }
121
122 /** Does the VM support an invokedynamic instruction?
123 */
124 public boolean hasInvokedynamic() {
125 return compareTo(JDK1_7) >= 0;
126 }
127
128 /** Does the target JDK contains the java.util.Objects class?
129 */
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47
48 /** J2SE1.4 = Merlin. */
49 JDK1_4("1.4", 48, 0),
50
51 /** JDK 5, codename Tiger. */
52 JDK1_5("1.5", 49, 0),
53
54 /** JDK 6. */
55 JDK1_6("1.6", 50, 0),
56
57 /** JDK 7. */
58 JDK1_7("1.7", 51, 0),
59
60 /** JDK 8. */
61 JDK1_8("1.8", 52, 0),
62
63 /** JDK 9. */
64 JDK1_9("1.9", 53, 0),
65
66 /** JDK 10, initially an alias for 9 */
67 JDK1_10("1.10", 53, 0),
68
69 JDK_11("11", 54, 0);
70
71 private static final Context.Key<Target> targetKey = new Context.Key<>();
72
73 public static Target instance(Context context) {
74 Target instance = context.get(targetKey);
75 if (instance == null) {
76 Options options = Options.instance(context);
77 String targetString = options.get(TARGET);
78 if (targetString != null) instance = lookup(targetString);
79 if (instance == null) instance = DEFAULT;
80 context.put(targetKey, instance);
81 }
82 return instance;
83 }
84
85 public static final Target MIN = Target.JDK1_6;
86
87 private static final Target MAX = values()[values().length - 1];
88
89 private static final Map<String,Target> tab = new HashMap<>();
90 static {
91 for (Target t : values()) {
92 tab.put(t.name, t);
93 }
94 tab.put("5", JDK1_5);
95 tab.put("6", JDK1_6);
96 tab.put("7", JDK1_7);
97 tab.put("8", JDK1_8);
98 tab.put("9", JDK1_9);
99 tab.put("10", JDK1_10);
100 tab.put("11", JDK_11);
101 }
102
103 public final String name;
104 public final int majorVersion;
105 public final int minorVersion;
106 private Target(String name, int majorVersion, int minorVersion) {
107 this.name = name;
108 this.majorVersion = majorVersion;
109 this.minorVersion = minorVersion;
110 }
111
112 public static final Target DEFAULT = JDK1_10; //values()[values().length - 1]; FIXME later!
113
114 public static Target lookup(String name) {
115 return tab.get(name);
116 }
117
118 /** Return the character to be used in constructing synthetic
119 * identifiers, where not specified by the JLS.
120 */
121 public char syntheticNameChar() {
122 return '$';
123 }
124
125 /** Does the VM support an invokedynamic instruction?
126 */
127 public boolean hasInvokedynamic() {
128 return compareTo(JDK1_7) >= 0;
129 }
130
131 /** Does the target JDK contains the java.util.Objects class?
132 */
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