Examples with MethodType java.lang.invoke.MethodType used on opensource projects

Example 71 with MethodType

use of java.lang.invoke.MethodType in project jdk8u_jdk by JetBrains.

the class BigArityTest method test255.

@Test
public void test255() throws Throwable {
    final int ARITY = 255;
    System.out.println("test" + ARITY);
    Object[] a = testArgs(ARITY);
    Object r0 = hashArguments(a);
    Object r;
    r = hashArguments_255(// <editor-fold defaultstate="collapsed" desc="a[0x00], a[0x01], a[0x02], a[0x03], a[0x04], ...">
    a[0x00], a[0x01], a[0x02], a[0x03], a[0x04], a[0x05], a[0x06], a[0x07], a[0x08], a[0x09], a[0x0A], a[0x0B], a[0x0C], a[0x0D], a[0x0E], a[0x0F], a[0x10], a[0x11], a[0x12], a[0x13], a[0x14], a[0x15], a[0x16], a[0x17], a[0x18], a[0x19], a[0x1A], a[0x1B], a[0x1C], a[0x1D], a[0x1E], a[0x1F], a[0x20], a[0x21], a[0x22], a[0x23], a[0x24], a[0x25], a[0x26], a[0x27], a[0x28], a[0x29], a[0x2A], a[0x2B], a[0x2C], a[0x2D], a[0x2E], a[0x2F], a[0x30], a[0x31], a[0x32], a[0x33], a[0x34], a[0x35], a[0x36], a[0x37], a[0x38], a[0x39], a[0x3A], a[0x3B], a[0x3C], a[0x3D], a[0x3E], a[0x3F], a[0x40], a[0x41], a[0x42], a[0x43], a[0x44], a[0x45], a[0x46], a[0x47], a[0x48], a[0x49], a[0x4A], a[0x4B], a[0x4C], a[0x4D], a[0x4E], a[0x4F], a[0x50], a[0x51], a[0x52], a[0x53], a[0x54], a[0x55], a[0x56], a[0x57], a[0x58], a[0x59], a[0x5A], a[0x5B], a[0x5C], a[0x5D], a[0x5E], a[0x5F], a[0x60], a[0x61], a[0x62], a[0x63], a[0x64], a[0x65], a[0x66], a[0x67], a[0x68], a[0x69], a[0x6A], a[0x6B], a[0x6C], a[0x6D], a[0x6E], a[0x6F], a[0x70], a[0x71], a[0x72], a[0x73], a[0x74], a[0x75], a[0x76], a[0x77], a[0x78], a[0x79], a[0x7A], a[0x7B], a[0x7C], a[0x7D], a[0x7E], a[0x7F], a[0x80], a[0x81], a[0x82], a[0x83], a[0x84], a[0x85], a[0x86], a[0x87], a[0x88], a[0x89], a[0x8A], a[0x8B], a[0x8C], a[0x8D], a[0x8E], a[0x8F], a[0x90], a[0x91], a[0x92], a[0x93], a[0x94], a[0x95], a[0x96], a[0x97], a[0x98], a[0x99], a[0x9A], a[0x9B], a[0x9C], a[0x9D], a[0x9E], a[0x9F], a[0xA0], a[0xA1], a[0xA2], a[0xA3], a[0xA4], a[0xA5], a[0xA6], a[0xA7], a[0xA8], a[0xA9], a[0xAA], a[0xAB], a[0xAC], a[0xAD], a[0xAE], a[0xAF], a[0xB0], a[0xB1], a[0xB2], a[0xB3], a[0xB4], a[0xB5], a[0xB6], a[0xB7], a[0xB8], a[0xB9], a[0xBA], a[0xBB], a[0xBC], a[0xBD], a[0xBE], a[0xBF], a[0xC0], a[0xC1], a[0xC2], a[0xC3], a[0xC4], a[0xC5], a[0xC6], a[0xC7], a[0xC8], a[0xC9], a[0xCA], a[0xCB], a[0xCC], a[0xCD], a[0xCE], a[0xCF], a[0xD0], a[0xD1], a[0xD2], a[0xD3], a[0xD4], a[0xD5], a[0xD6], a[0xD7], a[0xD8], a[0xD9], a[0xDA], a[0xDB], a[0xDC], a[0xDD], a[0xDE], a[0xDF], a[0xE0], a[0xE1], a[0xE2], a[0xE3], a[0xE4], a[0xE5], a[0xE6], a[0xE7], a[0xE8], a[0xE9], a[0xEA], a[0xEB], a[0xEC], a[0xED], a[0xEE], a[0xEF], a[0xF0], a[0xF1], a[0xF2], a[0xF3], a[0xF4], a[0xF5], a[0xF6], a[0xF7], // </editor-fold>
    a[0xF8], a[0xF9], a[0xFA], a[0xFB], a[0xFC], a[0xFD], // hashArguments_255
    a[0xFE]);
    assertEquals(r0, r);
    MethodType mt = MethodType.genericMethodType(ARITY);
    MethodHandle mh;
    try {
        mh = MethodHandles.lookup().findStatic(BigArityTest.class, "hashArguments_" + ARITY, mt);
        throw new AssertionError("should not create an arity 255 method handle");
    } catch (IllegalArgumentException ex) {
        System.out.println("OK: " + ex);
        mh = MethodHandles.lookup().findStatic(BigArityTest.class, "hashArguments_" + (ARITY - 1), mt.dropParameterTypes(ARITY - 1, ARITY));
    }
    try {
        r = mh.invokeExact(// <editor-fold defaultstate="collapsed" desc="a[0x00], a[0x01], a[0x02], a[0x03], a[0x04], ...">
        a[0x00], a[0x01], a[0x02], a[0x03], a[0x04], a[0x05], a[0x06], a[0x07], a[0x08], a[0x09], a[0x0A], a[0x0B], a[0x0C], a[0x0D], a[0x0E], a[0x0F], a[0x10], a[0x11], a[0x12], a[0x13], a[0x14], a[0x15], a[0x16], a[0x17], a[0x18], a[0x19], a[0x1A], a[0x1B], a[0x1C], a[0x1D], a[0x1E], a[0x1F], a[0x20], a[0x21], a[0x22], a[0x23], a[0x24], a[0x25], a[0x26], a[0x27], a[0x28], a[0x29], a[0x2A], a[0x2B], a[0x2C], a[0x2D], a[0x2E], a[0x2F], a[0x30], a[0x31], a[0x32], a[0x33], a[0x34], a[0x35], a[0x36], a[0x37], a[0x38], a[0x39], a[0x3A], a[0x3B], a[0x3C], a[0x3D], a[0x3E], a[0x3F], a[0x40], a[0x41], a[0x42], a[0x43], a[0x44], a[0x45], a[0x46], a[0x47], a[0x48], a[0x49], a[0x4A], a[0x4B], a[0x4C], a[0x4D], a[0x4E], a[0x4F], a[0x50], a[0x51], a[0x52], a[0x53], a[0x54], a[0x55], a[0x56], a[0x57], a[0x58], a[0x59], a[0x5A], a[0x5B], a[0x5C], a[0x5D], a[0x5E], a[0x5F], a[0x60], a[0x61], a[0x62], a[0x63], a[0x64], a[0x65], a[0x66], a[0x67], a[0x68], a[0x69], a[0x6A], a[0x6B], a[0x6C], a[0x6D], a[0x6E], a[0x6F], a[0x70], a[0x71], a[0x72], a[0x73], a[0x74], a[0x75], a[0x76], a[0x77], a[0x78], a[0x79], a[0x7A], a[0x7B], a[0x7C], a[0x7D], a[0x7E], a[0x7F], a[0x80], a[0x81], a[0x82], a[0x83], a[0x84], a[0x85], a[0x86], a[0x87], a[0x88], a[0x89], a[0x8A], a[0x8B], a[0x8C], a[0x8D], a[0x8E], a[0x8F], a[0x90], a[0x91], a[0x92], a[0x93], a[0x94], a[0x95], a[0x96], a[0x97], a[0x98], a[0x99], a[0x9A], a[0x9B], a[0x9C], a[0x9D], a[0x9E], a[0x9F], a[0xA0], a[0xA1], a[0xA2], a[0xA3], a[0xA4], a[0xA5], a[0xA6], a[0xA7], a[0xA8], a[0xA9], a[0xAA], a[0xAB], a[0xAC], a[0xAD], a[0xAE], a[0xAF], a[0xB0], a[0xB1], a[0xB2], a[0xB3], a[0xB4], a[0xB5], a[0xB6], a[0xB7], a[0xB8], a[0xB9], a[0xBA], a[0xBB], a[0xBC], a[0xBD], a[0xBE], a[0xBF], a[0xC0], a[0xC1], a[0xC2], a[0xC3], a[0xC4], a[0xC5], a[0xC6], a[0xC7], a[0xC8], a[0xC9], a[0xCA], a[0xCB], a[0xCC], a[0xCD], a[0xCE], a[0xCF], a[0xD0], a[0xD1], a[0xD2], a[0xD3], a[0xD4], a[0xD5], a[0xD6], a[0xD7], a[0xD8], a[0xD9], a[0xDA], a[0xDB], a[0xDC], a[0xDD], a[0xDE], a[0xDF], a[0xE0], a[0xE1], a[0xE2], a[0xE3], a[0xE4], a[0xE5], a[0xE6], a[0xE7], a[0xE8], a[0xE9], a[0xEA], a[0xEB], a[0xEC], a[0xED], a[0xEE], a[0xEF], a[0xF0], a[0xF1], a[0xF2], a[0xF3], a[0xF4], a[0xF5], a[0xF6], a[0xF7], // </editor-fold>
        a[0xF8], a[0xF9], a[0xFA], a[0xFB], a[0xFC], a[0xFD], a[0xFE]);
        throw new AssertionError("should not call an arity 255 method handle");
    } catch (LinkageError ex) {
        System.out.println("OK: " + ex);
    }
    try {
        MethodHandle ximh = MethodHandles.exactInvoker(mt);
        throw new AssertionError("should have thrown IAE; cannot have 1+1+255 arguments");
    } catch (IllegalArgumentException ex) {
        System.out.println("OK: " + ex);
    }
}

Example 72 with MethodType

use of java.lang.invoke.MethodType in project jdk8u_jdk by JetBrains.

the class BigArityTest method test252.

@Test
public void test252() throws Throwable {
    final int ARITY = 252;
    System.out.println("test" + ARITY);
    Object[] a = testArgs(ARITY);
    Object r0 = hashArguments(a);
    Object r;
    r = hashArguments_252(// <editor-fold defaultstate="collapsed" desc="a[0x00], a[0x01], a[0x02], a[0x03], a[0x04], ...">
    a[0x00], a[0x01], a[0x02], a[0x03], a[0x04], a[0x05], a[0x06], a[0x07], a[0x08], a[0x09], a[0x0A], a[0x0B], a[0x0C], a[0x0D], a[0x0E], a[0x0F], a[0x10], a[0x11], a[0x12], a[0x13], a[0x14], a[0x15], a[0x16], a[0x17], a[0x18], a[0x19], a[0x1A], a[0x1B], a[0x1C], a[0x1D], a[0x1E], a[0x1F], a[0x20], a[0x21], a[0x22], a[0x23], a[0x24], a[0x25], a[0x26], a[0x27], a[0x28], a[0x29], a[0x2A], a[0x2B], a[0x2C], a[0x2D], a[0x2E], a[0x2F], a[0x30], a[0x31], a[0x32], a[0x33], a[0x34], a[0x35], a[0x36], a[0x37], a[0x38], a[0x39], a[0x3A], a[0x3B], a[0x3C], a[0x3D], a[0x3E], a[0x3F], a[0x40], a[0x41], a[0x42], a[0x43], a[0x44], a[0x45], a[0x46], a[0x47], a[0x48], a[0x49], a[0x4A], a[0x4B], a[0x4C], a[0x4D], a[0x4E], a[0x4F], a[0x50], a[0x51], a[0x52], a[0x53], a[0x54], a[0x55], a[0x56], a[0x57], a[0x58], a[0x59], a[0x5A], a[0x5B], a[0x5C], a[0x5D], a[0x5E], a[0x5F], a[0x60], a[0x61], a[0x62], a[0x63], a[0x64], a[0x65], a[0x66], a[0x67], a[0x68], a[0x69], a[0x6A], a[0x6B], a[0x6C], a[0x6D], a[0x6E], a[0x6F], a[0x70], a[0x71], a[0x72], a[0x73], a[0x74], a[0x75], a[0x76], a[0x77], a[0x78], a[0x79], a[0x7A], a[0x7B], a[0x7C], a[0x7D], a[0x7E], a[0x7F], a[0x80], a[0x81], a[0x82], a[0x83], a[0x84], a[0x85], a[0x86], a[0x87], a[0x88], a[0x89], a[0x8A], a[0x8B], a[0x8C], a[0x8D], a[0x8E], a[0x8F], a[0x90], a[0x91], a[0x92], a[0x93], a[0x94], a[0x95], a[0x96], a[0x97], a[0x98], a[0x99], a[0x9A], a[0x9B], a[0x9C], a[0x9D], a[0x9E], a[0x9F], a[0xA0], a[0xA1], a[0xA2], a[0xA3], a[0xA4], a[0xA5], a[0xA6], a[0xA7], a[0xA8], a[0xA9], a[0xAA], a[0xAB], a[0xAC], a[0xAD], a[0xAE], a[0xAF], a[0xB0], a[0xB1], a[0xB2], a[0xB3], a[0xB4], a[0xB5], a[0xB6], a[0xB7], a[0xB8], a[0xB9], a[0xBA], a[0xBB], a[0xBC], a[0xBD], a[0xBE], a[0xBF], a[0xC0], a[0xC1], a[0xC2], a[0xC3], a[0xC4], a[0xC5], a[0xC6], a[0xC7], a[0xC8], a[0xC9], a[0xCA], a[0xCB], a[0xCC], a[0xCD], a[0xCE], a[0xCF], a[0xD0], a[0xD1], a[0xD2], a[0xD3], a[0xD4], a[0xD5], a[0xD6], a[0xD7], a[0xD8], a[0xD9], a[0xDA], a[0xDB], a[0xDC], a[0xDD], a[0xDE], a[0xDF], a[0xE0], a[0xE1], a[0xE2], a[0xE3], a[0xE4], a[0xE5], a[0xE6], a[0xE7], a[0xE8], a[0xE9], a[0xEA], a[0xEB], a[0xEC], a[0xED], a[0xEE], a[0xEF], a[0xF0], a[0xF1], a[0xF2], a[0xF3], a[0xF4], a[0xF5], a[0xF6], a[0xF7], // </editor-fold>
    a[0xF8], a[0xF9], a[0xFA], // hashArguments_252
    a[0xFB]);
    assertEquals(r0, r);
    MethodType mt = MethodType.genericMethodType(ARITY);
    MethodHandle mh = MethodHandles.lookup().findStatic(BigArityTest.class, "hashArguments_" + ARITY, mt);
    test252(mh, a, r0);
    MethodHandle mh_CA = MH_hashArguments_VA.asFixedArity().asCollector(Object[].class, ARITY);
    test252(mh_CA, a, r0);
}

Example 73 with MethodType

use of java.lang.invoke.MethodType in project jdk8u_jdk by JetBrains.

the class BigArityTest method test253.

@Test
public void test253() throws Throwable {
    final int ARITY = 253;
    System.out.println("test" + ARITY);
    Object[] a = testArgs(ARITY);
    Object r0 = hashArguments(a);
    Object r;
    r = hashArguments_253(// <editor-fold defaultstate="collapsed" desc="a[0x00], a[0x01], a[0x02], a[0x03], a[0x04], ...">
    a[0x00], a[0x01], a[0x02], a[0x03], a[0x04], a[0x05], a[0x06], a[0x07], a[0x08], a[0x09], a[0x0A], a[0x0B], a[0x0C], a[0x0D], a[0x0E], a[0x0F], a[0x10], a[0x11], a[0x12], a[0x13], a[0x14], a[0x15], a[0x16], a[0x17], a[0x18], a[0x19], a[0x1A], a[0x1B], a[0x1C], a[0x1D], a[0x1E], a[0x1F], a[0x20], a[0x21], a[0x22], a[0x23], a[0x24], a[0x25], a[0x26], a[0x27], a[0x28], a[0x29], a[0x2A], a[0x2B], a[0x2C], a[0x2D], a[0x2E], a[0x2F], a[0x30], a[0x31], a[0x32], a[0x33], a[0x34], a[0x35], a[0x36], a[0x37], a[0x38], a[0x39], a[0x3A], a[0x3B], a[0x3C], a[0x3D], a[0x3E], a[0x3F], a[0x40], a[0x41], a[0x42], a[0x43], a[0x44], a[0x45], a[0x46], a[0x47], a[0x48], a[0x49], a[0x4A], a[0x4B], a[0x4C], a[0x4D], a[0x4E], a[0x4F], a[0x50], a[0x51], a[0x52], a[0x53], a[0x54], a[0x55], a[0x56], a[0x57], a[0x58], a[0x59], a[0x5A], a[0x5B], a[0x5C], a[0x5D], a[0x5E], a[0x5F], a[0x60], a[0x61], a[0x62], a[0x63], a[0x64], a[0x65], a[0x66], a[0x67], a[0x68], a[0x69], a[0x6A], a[0x6B], a[0x6C], a[0x6D], a[0x6E], a[0x6F], a[0x70], a[0x71], a[0x72], a[0x73], a[0x74], a[0x75], a[0x76], a[0x77], a[0x78], a[0x79], a[0x7A], a[0x7B], a[0x7C], a[0x7D], a[0x7E], a[0x7F], a[0x80], a[0x81], a[0x82], a[0x83], a[0x84], a[0x85], a[0x86], a[0x87], a[0x88], a[0x89], a[0x8A], a[0x8B], a[0x8C], a[0x8D], a[0x8E], a[0x8F], a[0x90], a[0x91], a[0x92], a[0x93], a[0x94], a[0x95], a[0x96], a[0x97], a[0x98], a[0x99], a[0x9A], a[0x9B], a[0x9C], a[0x9D], a[0x9E], a[0x9F], a[0xA0], a[0xA1], a[0xA2], a[0xA3], a[0xA4], a[0xA5], a[0xA6], a[0xA7], a[0xA8], a[0xA9], a[0xAA], a[0xAB], a[0xAC], a[0xAD], a[0xAE], a[0xAF], a[0xB0], a[0xB1], a[0xB2], a[0xB3], a[0xB4], a[0xB5], a[0xB6], a[0xB7], a[0xB8], a[0xB9], a[0xBA], a[0xBB], a[0xBC], a[0xBD], a[0xBE], a[0xBF], a[0xC0], a[0xC1], a[0xC2], a[0xC3], a[0xC4], a[0xC5], a[0xC6], a[0xC7], a[0xC8], a[0xC9], a[0xCA], a[0xCB], a[0xCC], a[0xCD], a[0xCE], a[0xCF], a[0xD0], a[0xD1], a[0xD2], a[0xD3], a[0xD4], a[0xD5], a[0xD6], a[0xD7], a[0xD8], a[0xD9], a[0xDA], a[0xDB], a[0xDC], a[0xDD], a[0xDE], a[0xDF], a[0xE0], a[0xE1], a[0xE2], a[0xE3], a[0xE4], a[0xE5], a[0xE6], a[0xE7], a[0xE8], a[0xE9], a[0xEA], a[0xEB], a[0xEC], a[0xED], a[0xEE], a[0xEF], a[0xF0], a[0xF1], a[0xF2], a[0xF3], a[0xF4], a[0xF5], a[0xF6], a[0xF7], // </editor-fold>
    a[0xF8], a[0xF9], a[0xFA], a[0xFB], // hashArguments_253
    a[0xFC]);
    assertEquals(r0, r);
    MethodType mt = MethodType.genericMethodType(ARITY);
    MethodHandle mh = MethodHandles.lookup().findStatic(BigArityTest.class, "hashArguments_" + ARITY, mt);
    test253(mh, a, r0);
    MethodHandle mh_CA = MH_hashArguments_VA.asFixedArity().asCollector(Object[].class, ARITY);
    test253(mh_CA, a, r0);
}

Example 74 with MethodType

use of java.lang.invoke.MethodType in project jdk8u_jdk by JetBrains.

the class BigArityTest method test254.

@Test
public void test254() throws Throwable {
    final int ARITY = 254;
    System.out.println("test" + ARITY);
    Object[] a = testArgs(ARITY);
    Object r0 = hashArguments(a);
    Object r;
    r = hashArguments_254(// <editor-fold defaultstate="collapsed" desc="a[0x00], a[0x01], a[0x02], a[0x03], a[0x04], ...">
    a[0x00], a[0x01], a[0x02], a[0x03], a[0x04], a[0x05], a[0x06], a[0x07], a[0x08], a[0x09], a[0x0A], a[0x0B], a[0x0C], a[0x0D], a[0x0E], a[0x0F], a[0x10], a[0x11], a[0x12], a[0x13], a[0x14], a[0x15], a[0x16], a[0x17], a[0x18], a[0x19], a[0x1A], a[0x1B], a[0x1C], a[0x1D], a[0x1E], a[0x1F], a[0x20], a[0x21], a[0x22], a[0x23], a[0x24], a[0x25], a[0x26], a[0x27], a[0x28], a[0x29], a[0x2A], a[0x2B], a[0x2C], a[0x2D], a[0x2E], a[0x2F], a[0x30], a[0x31], a[0x32], a[0x33], a[0x34], a[0x35], a[0x36], a[0x37], a[0x38], a[0x39], a[0x3A], a[0x3B], a[0x3C], a[0x3D], a[0x3E], a[0x3F], a[0x40], a[0x41], a[0x42], a[0x43], a[0x44], a[0x45], a[0x46], a[0x47], a[0x48], a[0x49], a[0x4A], a[0x4B], a[0x4C], a[0x4D], a[0x4E], a[0x4F], a[0x50], a[0x51], a[0x52], a[0x53], a[0x54], a[0x55], a[0x56], a[0x57], a[0x58], a[0x59], a[0x5A], a[0x5B], a[0x5C], a[0x5D], a[0x5E], a[0x5F], a[0x60], a[0x61], a[0x62], a[0x63], a[0x64], a[0x65], a[0x66], a[0x67], a[0x68], a[0x69], a[0x6A], a[0x6B], a[0x6C], a[0x6D], a[0x6E], a[0x6F], a[0x70], a[0x71], a[0x72], a[0x73], a[0x74], a[0x75], a[0x76], a[0x77], a[0x78], a[0x79], a[0x7A], a[0x7B], a[0x7C], a[0x7D], a[0x7E], a[0x7F], a[0x80], a[0x81], a[0x82], a[0x83], a[0x84], a[0x85], a[0x86], a[0x87], a[0x88], a[0x89], a[0x8A], a[0x8B], a[0x8C], a[0x8D], a[0x8E], a[0x8F], a[0x90], a[0x91], a[0x92], a[0x93], a[0x94], a[0x95], a[0x96], a[0x97], a[0x98], a[0x99], a[0x9A], a[0x9B], a[0x9C], a[0x9D], a[0x9E], a[0x9F], a[0xA0], a[0xA1], a[0xA2], a[0xA3], a[0xA4], a[0xA5], a[0xA6], a[0xA7], a[0xA8], a[0xA9], a[0xAA], a[0xAB], a[0xAC], a[0xAD], a[0xAE], a[0xAF], a[0xB0], a[0xB1], a[0xB2], a[0xB3], a[0xB4], a[0xB5], a[0xB6], a[0xB7], a[0xB8], a[0xB9], a[0xBA], a[0xBB], a[0xBC], a[0xBD], a[0xBE], a[0xBF], a[0xC0], a[0xC1], a[0xC2], a[0xC3], a[0xC4], a[0xC5], a[0xC6], a[0xC7], a[0xC8], a[0xC9], a[0xCA], a[0xCB], a[0xCC], a[0xCD], a[0xCE], a[0xCF], a[0xD0], a[0xD1], a[0xD2], a[0xD3], a[0xD4], a[0xD5], a[0xD6], a[0xD7], a[0xD8], a[0xD9], a[0xDA], a[0xDB], a[0xDC], a[0xDD], a[0xDE], a[0xDF], a[0xE0], a[0xE1], a[0xE2], a[0xE3], a[0xE4], a[0xE5], a[0xE6], a[0xE7], a[0xE8], a[0xE9], a[0xEA], a[0xEB], a[0xEC], a[0xED], a[0xEE], a[0xEF], a[0xF0], a[0xF1], a[0xF2], a[0xF3], a[0xF4], a[0xF5], a[0xF6], a[0xF7], // </editor-fold>
    a[0xF8], a[0xF9], a[0xFA], a[0xFB], a[0xFC], // hashArguments_254
    a[0xFD]);
    assertEquals(r0, r);
    MethodType mt = MethodType.genericMethodType(ARITY);
    MethodHandle mh = MethodHandles.lookup().findStatic(BigArityTest.class, "hashArguments_" + ARITY, mt);
    test254(mh, a, r0);
    MethodHandle mh_CA = MH_hashArguments_VA.asFixedArity().asCollector(Object[].class, ARITY);
    test254(mh_CA, a, r0);
}

Example 75 with MethodType

use of java.lang.invoke.MethodType in project jdk8u_jdk by JetBrains.

the class JavaDocExamplesTest method testMutableCallSite.

@Test
public void testMutableCallSite() throws Throwable {
    {
        {
            /// JAVADOC
            {
            }
            MutableCallSite name = new MutableCallSite(MethodType.methodType(String.class));
            MethodHandle MH_name = name.dynamicInvoker();
            MethodType MT_str1 = MethodType.methodType(String.class);
            MethodHandle MH_upcase = MethodHandles.lookup().findVirtual(String.class, "toUpperCase", MT_str1);
            MethodHandle worker1 = MethodHandles.filterReturnValue(MH_name, MH_upcase);
            name.setTarget(MethodHandles.constant(String.class, "Rocky"));
            assertEquals("ROCKY", (String) worker1.invokeExact());
            name.setTarget(MethodHandles.constant(String.class, "Fred"));
            assertEquals("FRED", (String) worker1.invokeExact());
            // (mutation can be continued indefinitely)
            /*
 * </pre></blockquote>
 * <p>
 * The same call site may be used in several places at once.
 * <blockquote><pre>
 */
            MethodType MT_str2 = MethodType.methodType(String.class, String.class);
            MethodHandle MH_cat = lookup().findVirtual(String.class, "concat", methodType(String.class, String.class));
            MethodHandle MH_dear = MethodHandles.insertArguments(MH_cat, 1, ", dear?");
            MethodHandle worker2 = MethodHandles.filterReturnValue(MH_name, MH_dear);
            assertEquals("Fred, dear?", (String) worker2.invokeExact());
            name.setTarget(MethodHandles.constant(String.class, "Wilma"));
            assertEquals("WILMA", (String) worker1.invokeExact());
            assertEquals("Wilma, dear?", (String) worker2.invokeExact());
            {
            }
        }
    }
}