42 * Usage: {@code import static java.lang.invoke.MethodHandleStatics.*}
43 * @author John Rose, JSR 292 EG
44 */
45 /*non-public*/
46 class MethodHandleStatics {
47
48 private MethodHandleStatics() { } // do not instantiate
49
50 static final Unsafe UNSAFE = Unsafe.getUnsafe();
51 static final int CLASSFILE_VERSION = ClassFileFormatVersion.latest().major();
52 static final boolean DEBUG_METHOD_HANDLE_NAMES;
53 static final boolean TRACE_INTERPRETER;
54 static final boolean TRACE_METHOD_LINKAGE;
55 static final boolean TRACE_RESOLVE;
56 static final int COMPILE_THRESHOLD;
57 static final boolean LOG_LF_COMPILATION_FAILURE;
58 static final int DONT_INLINE_THRESHOLD;
59 static final int PROFILE_LEVEL;
60 static final boolean PROFILE_GWT;
61 static final int CUSTOMIZE_THRESHOLD;
62 static final boolean VAR_HANDLE_GUARDS;
63 static final int MAX_ARITY;
64 static final boolean VAR_HANDLE_IDENTITY_ADAPT;
65 static final boolean VAR_HANDLE_SEGMENT_FORCE_EXACT;
66 static final ClassFileDumper DUMP_CLASS_FILES;
67
68 static {
69 Properties props = GetPropertyAction.privilegedGetProperties();
70 DEBUG_METHOD_HANDLE_NAMES = Boolean.parseBoolean(
71 props.getProperty("java.lang.invoke.MethodHandle.DEBUG_NAMES"));
72
73 TRACE_INTERPRETER = Boolean.parseBoolean(
74 props.getProperty("java.lang.invoke.MethodHandle.TRACE_INTERPRETER"));
75 TRACE_METHOD_LINKAGE = Boolean.parseBoolean(
76 props.getProperty("java.lang.invoke.MethodHandle.TRACE_METHOD_LINKAGE"));
77 TRACE_RESOLVE = Boolean.parseBoolean(
78 props.getProperty("java.lang.invoke.MethodHandle.TRACE_RESOLVE"));
79 COMPILE_THRESHOLD = Integer.parseInt(
80 props.getProperty("java.lang.invoke.MethodHandle.COMPILE_THRESHOLD", "0"));
81 LOG_LF_COMPILATION_FAILURE = Boolean.parseBoolean(
82 props.getProperty("java.lang.invoke.MethodHandle.LOG_LF_COMPILATION_FAILURE", "false"));
83 DONT_INLINE_THRESHOLD = Integer.parseInt(
84 props.getProperty("java.lang.invoke.MethodHandle.DONT_INLINE_THRESHOLD", "30"));
85 PROFILE_LEVEL = Integer.parseInt(
86 props.getProperty("java.lang.invoke.MethodHandle.PROFILE_LEVEL", "0"));
87 PROFILE_GWT = Boolean.parseBoolean(
88 props.getProperty("java.lang.invoke.MethodHandle.PROFILE_GWT", "true"));
89 CUSTOMIZE_THRESHOLD = Integer.parseInt(
90 props.getProperty("java.lang.invoke.MethodHandle.CUSTOMIZE_THRESHOLD", "127"));
91 VAR_HANDLE_GUARDS = Boolean.parseBoolean(
92 props.getProperty("java.lang.invoke.VarHandle.VAR_HANDLE_GUARDS", "true"));
93 VAR_HANDLE_IDENTITY_ADAPT = Boolean.parseBoolean(
94 props.getProperty("java.lang.invoke.VarHandle.VAR_HANDLE_IDENTITY_ADAPT", "false"));
95 VAR_HANDLE_SEGMENT_FORCE_EXACT = Boolean.parseBoolean(
96 props.getProperty("java.lang.invoke.VarHandle.VAR_HANDLE_SEGMENT_FORCE_EXACT", "false"));
97
98 // Do not adjust this except for special platforms:
99 MAX_ARITY = Integer.parseInt(
100 props.getProperty("java.lang.invoke.MethodHandleImpl.MAX_ARITY", "255"));
101
102 DUMP_CLASS_FILES = ClassFileDumper.getInstance("jdk.invoke.MethodHandle.dumpMethodHandleInternals",
103 "DUMP_METHOD_HANDLE_INTERNALS");
104
105 if (CUSTOMIZE_THRESHOLD < -1 || CUSTOMIZE_THRESHOLD > 127) {
106 throw newInternalError("CUSTOMIZE_THRESHOLD should be in [-1...127] range");
107 }
108 }
109
110 /** Tell if any of the debugging switches are turned on.
|
42 * Usage: {@code import static java.lang.invoke.MethodHandleStatics.*}
43 * @author John Rose, JSR 292 EG
44 */
45 /*non-public*/
46 class MethodHandleStatics {
47
48 private MethodHandleStatics() { } // do not instantiate
49
50 static final Unsafe UNSAFE = Unsafe.getUnsafe();
51 static final int CLASSFILE_VERSION = ClassFileFormatVersion.latest().major();
52 static final boolean DEBUG_METHOD_HANDLE_NAMES;
53 static final boolean TRACE_INTERPRETER;
54 static final boolean TRACE_METHOD_LINKAGE;
55 static final boolean TRACE_RESOLVE;
56 static final int COMPILE_THRESHOLD;
57 static final boolean LOG_LF_COMPILATION_FAILURE;
58 static final int DONT_INLINE_THRESHOLD;
59 static final int PROFILE_LEVEL;
60 static final boolean PROFILE_GWT;
61 static final int CUSTOMIZE_THRESHOLD;
62 static final boolean NO_SOFT_CACHE; // Do not use SoftReference for various caching operations.
63 static final boolean VAR_HANDLE_GUARDS;
64 static final int MAX_ARITY;
65 static final boolean VAR_HANDLE_IDENTITY_ADAPT;
66 static final boolean VAR_HANDLE_SEGMENT_FORCE_EXACT;
67 static final ClassFileDumper DUMP_CLASS_FILES;
68
69 static {
70 Properties props = GetPropertyAction.privilegedGetProperties();
71 DEBUG_METHOD_HANDLE_NAMES = Boolean.parseBoolean(
72 props.getProperty("java.lang.invoke.MethodHandle.DEBUG_NAMES"));
73
74 TRACE_INTERPRETER = Boolean.parseBoolean(
75 props.getProperty("java.lang.invoke.MethodHandle.TRACE_INTERPRETER"));
76 TRACE_METHOD_LINKAGE = Boolean.parseBoolean(
77 props.getProperty("java.lang.invoke.MethodHandle.TRACE_METHOD_LINKAGE"));
78 TRACE_RESOLVE = Boolean.parseBoolean(
79 props.getProperty("java.lang.invoke.MethodHandle.TRACE_RESOLVE"));
80 COMPILE_THRESHOLD = Integer.parseInt(
81 props.getProperty("java.lang.invoke.MethodHandle.COMPILE_THRESHOLD", "0"));
82 LOG_LF_COMPILATION_FAILURE = Boolean.parseBoolean(
83 props.getProperty("java.lang.invoke.MethodHandle.LOG_LF_COMPILATION_FAILURE", "false"));
84 DONT_INLINE_THRESHOLD = Integer.parseInt(
85 props.getProperty("java.lang.invoke.MethodHandle.DONT_INLINE_THRESHOLD", "30"));
86 PROFILE_LEVEL = Integer.parseInt(
87 props.getProperty("java.lang.invoke.MethodHandle.PROFILE_LEVEL", "0"));
88 PROFILE_GWT = Boolean.parseBoolean(
89 props.getProperty("java.lang.invoke.MethodHandle.PROFILE_GWT", "true"));
90 CUSTOMIZE_THRESHOLD = Integer.parseInt(
91 props.getProperty("java.lang.invoke.MethodHandle.CUSTOMIZE_THRESHOLD", "127"));
92 NO_SOFT_CACHE = Boolean.parseBoolean(
93 props.getProperty("java.lang.invoke.MethodHandle.NO_SOFT_CACHE", "false"));
94 VAR_HANDLE_GUARDS = Boolean.parseBoolean(
95 props.getProperty("java.lang.invoke.VarHandle.VAR_HANDLE_GUARDS", "true"));
96 VAR_HANDLE_IDENTITY_ADAPT = Boolean.parseBoolean(
97 props.getProperty("java.lang.invoke.VarHandle.VAR_HANDLE_IDENTITY_ADAPT", "false"));
98 VAR_HANDLE_SEGMENT_FORCE_EXACT = Boolean.parseBoolean(
99 props.getProperty("java.lang.invoke.VarHandle.VAR_HANDLE_SEGMENT_FORCE_EXACT", "false"));
100
101 // Do not adjust this except for special platforms:
102 MAX_ARITY = Integer.parseInt(
103 props.getProperty("java.lang.invoke.MethodHandleImpl.MAX_ARITY", "255"));
104
105 DUMP_CLASS_FILES = ClassFileDumper.getInstance("jdk.invoke.MethodHandle.dumpMethodHandleInternals",
106 "DUMP_METHOD_HANDLE_INTERNALS");
107
108 if (CUSTOMIZE_THRESHOLD < -1 || CUSTOMIZE_THRESHOLD > 127) {
109 throw newInternalError("CUSTOMIZE_THRESHOLD should be in [-1...127] range");
110 }
111 }
112
113 /** Tell if any of the debugging switches are turned on.
|