31 import java.lang.invoke.MethodHandles;
32 import java.util.Locale;
33
34 /**
35 * Utilities used by Global class.
36 */
37 public final class GlobalFunctions {
38
39 /** Methodhandle to implementation of ECMA 15.1.2.2, parseInt */
40 public static final MethodHandle PARSEINT = findOwnMH("parseInt", double.class, Object.class, Object.class, Object.class);
41
42 /** Methodhandle (specialized) to implementation of ECMA 15.1.2.2, parseInt */
43 public static final MethodHandle PARSEINT_OI = findOwnMH("parseInt", double.class, Object.class, Object.class, int.class);
44
45 /** ParseInt - NaN for booleans (thru string conversion to number conversion) */
46 public static final MethodHandle PARSEINT_Z = MH.dropArguments(MH.dropArguments(MH.constant(double.class, Double.NaN), 0, boolean.class), 0, Object.class);
47
48 /** ParseInt - identity for ints */
49 public static final MethodHandle PARSEINT_I = MH.dropArguments(MH.identity(int.class), 0, Object.class);
50
51 /** ParseInt - identity for longs */
52 public static final MethodHandle PARSEINT_J = MH.dropArguments(MH.identity(long.class), 0, Object.class);
53
54 /** Methodhandle (specialized) to implementation of ECMA 15.1.2.2, parseInt */
55 public static final MethodHandle PARSEINT_O = findOwnMH("parseInt", double.class, Object.class, Object.class);
56
57 /** Methodhandle to implementation of ECMA 15.1.2.3, parseFloat */
58 public static final MethodHandle PARSEFLOAT = findOwnMH("parseFloat", double.class, Object.class, Object.class);
59
60 /** isNan for integers - always false */
61 public static final MethodHandle IS_NAN_I = MH.dropArguments(MH.constant(boolean.class, false), 0, Object.class);
62
63 /** isNan for longs - always false */
64 public static final MethodHandle IS_NAN_J = MH.dropArguments(MH.constant(boolean.class, false), 0, Object.class);
65
66 /** IsNan for doubles - use Double.isNaN */
67 public static final MethodHandle IS_NAN_D = MH.dropArguments(MH.findStatic(MethodHandles.lookup(), Double.class, "isNaN", MH.type(boolean.class, double.class)), 0, Object.class);
68
69 /** Methodhandle to implementation of ECMA 15.1.2.4, isNaN */
70 public static final MethodHandle IS_NAN = findOwnMH("isNaN", boolean.class, Object.class, Object.class);
71
72 /** Methodhandle to implementation of ECMA 15.1.2.5, isFinite */
73 public static final MethodHandle IS_FINITE = findOwnMH("isFinite", boolean.class, Object.class, Object.class);
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31 import java.lang.invoke.MethodHandles;
32 import java.util.Locale;
33
34 /**
35 * Utilities used by Global class.
36 */
37 public final class GlobalFunctions {
38
39 /** Methodhandle to implementation of ECMA 15.1.2.2, parseInt */
40 public static final MethodHandle PARSEINT = findOwnMH("parseInt", double.class, Object.class, Object.class, Object.class);
41
42 /** Methodhandle (specialized) to implementation of ECMA 15.1.2.2, parseInt */
43 public static final MethodHandle PARSEINT_OI = findOwnMH("parseInt", double.class, Object.class, Object.class, int.class);
44
45 /** ParseInt - NaN for booleans (thru string conversion to number conversion) */
46 public static final MethodHandle PARSEINT_Z = MH.dropArguments(MH.dropArguments(MH.constant(double.class, Double.NaN), 0, boolean.class), 0, Object.class);
47
48 /** ParseInt - identity for ints */
49 public static final MethodHandle PARSEINT_I = MH.dropArguments(MH.identity(int.class), 0, Object.class);
50
51 /** Methodhandle (specialized) to implementation of ECMA 15.1.2.2, parseInt */
52 public static final MethodHandle PARSEINT_O = findOwnMH("parseInt", double.class, Object.class, Object.class);
53
54 /** Methodhandle to implementation of ECMA 15.1.2.3, parseFloat */
55 public static final MethodHandle PARSEFLOAT = findOwnMH("parseFloat", double.class, Object.class, Object.class);
56
57 /** isNan for integers - always false */
58 public static final MethodHandle IS_NAN_I = MH.dropArguments(MH.constant(boolean.class, false), 0, Object.class);
59
60 /** isNan for longs - always false */
61 public static final MethodHandle IS_NAN_J = MH.dropArguments(MH.constant(boolean.class, false), 0, Object.class);
62
63 /** IsNan for doubles - use Double.isNaN */
64 public static final MethodHandle IS_NAN_D = MH.dropArguments(MH.findStatic(MethodHandles.lookup(), Double.class, "isNaN", MH.type(boolean.class, double.class)), 0, Object.class);
65
66 /** Methodhandle to implementation of ECMA 15.1.2.4, isNaN */
67 public static final MethodHandle IS_NAN = findOwnMH("isNaN", boolean.class, Object.class, Object.class);
68
69 /** Methodhandle to implementation of ECMA 15.1.2.5, isFinite */
70 public static final MethodHandle IS_FINITE = findOwnMH("isFinite", boolean.class, Object.class, Object.class);
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