package java.lang.invoke;
import java.security.AccessController;
import java.security.PrivilegedAction;
import sun.misc.Unsafe;
class MethodHandleStatics {
private MethodHandleStatics() { }
static final Unsafe UNSAFE = Unsafe.getUnsafe();
static final boolean DEBUG_METHOD_HANDLE_NAMES;
static final boolean DUMP_CLASS_FILES;
static final boolean TRACE_INTERPRETER;
static final boolean TRACE_METHOD_LINKAGE;
static final int COMPILE_THRESHOLD;
static final int DONT_INLINE_THRESHOLD;
static final int PROFILE_LEVEL;
static final boolean PROFILE_GWT;
static final int CUSTOMIZE_THRESHOLD;
static {
final Object[] values = new Object[9];
AccessController.doPrivileged(new PrivilegedAction<Void>() {
public Void run() {
values[0] = Boolean.getBoolean("java.lang.invoke.MethodHandle.DEBUG_NAMES");
values[1] = Boolean.getBoolean("java.lang.invoke.MethodHandle.DUMP_CLASS_FILES");
values[2] = Boolean.getBoolean("java.lang.invoke.MethodHandle.TRACE_INTERPRETER");
values[3] = Boolean.getBoolean("java.lang.invoke.MethodHandle.TRACE_METHOD_LINKAGE");
values[4] = Integer.getInteger("java.lang.invoke.MethodHandle.COMPILE_THRESHOLD", 0);
values[5] = Integer.getInteger("java.lang.invoke.MethodHandle.DONT_INLINE_THRESHOLD", 30);
values[6] = Integer.getInteger("java.lang.invoke.MethodHandle.PROFILE_LEVEL", 0);
values[7] = Boolean.parseBoolean(System.getProperty("java.lang.invoke.MethodHandle.PROFILE_GWT", "true"));
values[8] = Integer.getInteger("java.lang.invoke.MethodHandle.CUSTOMIZE_THRESHOLD", 127);
return null;
}
});
DEBUG_METHOD_HANDLE_NAMES = (Boolean) values[0];
DUMP_CLASS_FILES = (Boolean) values[1];
TRACE_INTERPRETER = (Boolean) values[2];
TRACE_METHOD_LINKAGE = (Boolean) values[3];
COMPILE_THRESHOLD = (Integer) values[4];
DONT_INLINE_THRESHOLD = (Integer) values[5];
PROFILE_LEVEL = (Integer) values[6];
PROFILE_GWT = (Boolean) values[7];
CUSTOMIZE_THRESHOLD = (Integer) values[8];
if (CUSTOMIZE_THRESHOLD < -1 || CUSTOMIZE_THRESHOLD > 127) {
throw newInternalError("CUSTOMIZE_THRESHOLD should be in [-1...127] range");
}
}
static boolean debugEnabled() {
return (DEBUG_METHOD_HANDLE_NAMES |
DUMP_CLASS_FILES |
TRACE_INTERPRETER |
TRACE_METHOD_LINKAGE);
}
static String getNameString(MethodHandle target, MethodType type) {
if (type == null)
type = target.type();
MemberName name = null;
if (target != null)
name = target.internalMemberName();
if (name == null)
return "invoke" + type;
return name.getName() + type;
}
static String getNameString(MethodHandle target, MethodHandle typeHolder) {
return getNameString(target, typeHolder == null ? (MethodType) null : typeHolder.type());
}
static String getNameString(MethodHandle target) {
return getNameString(target, (MethodType) null);
}
static String addTypeString(Object obj, MethodHandle target) {
String str = String.valueOf(obj);
if (target == null) return str;
int paren = str.indexOf('(');
if (paren >= 0) str = str.substring(0, paren);
return str + target.type();
}
static InternalError newInternalError(String message) {
return new InternalError(message);
}
static InternalError newInternalError(String message, Throwable cause) {
return new InternalError(message, cause);
}
static InternalError newInternalError(Throwable cause) {
return new InternalError(cause);
}
static RuntimeException newIllegalStateException(String message) {
return new IllegalStateException(message);
}
static RuntimeException newIllegalStateException(String message, Object obj) {
return new IllegalStateException(message(message, obj));
}
static RuntimeException newIllegalArgumentException(String message) {
return new IllegalArgumentException(message);
}
static RuntimeException newIllegalArgumentException(String message, Object obj) {
return new IllegalArgumentException(message(message, obj));
}
static RuntimeException newIllegalArgumentException(String message, Object obj, Object obj2) {
return new IllegalArgumentException(message(message, obj, obj2));
}
static Error uncaughtException(Throwable ex) {
if (ex instanceof Error) throw (Error) ex;
if (ex instanceof RuntimeException) throw (RuntimeException) ex;
throw newInternalError("uncaught exception", ex);
}
static Error NYI() {
throw new AssertionError("NYI");
}
private static String message(String message, Object obj) {
if (obj != null) message = message + ": " + obj;
return message;
}
private static String message(String message, Object obj, Object obj2) {
if (obj != null || obj2 != null) message = message + ": " + obj + ", " + obj2;
return message;
}
}