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

Example 16 with ConstantCallSite

use of java.lang.invoke.ConstantCallSite in project graal by oracle.

the class HotSpotMethodSubstitutionTest method testCallSiteGetTargetSnippet.

public static String testCallSiteGetTargetSnippet(int i) throws Exception {
    ConstantCallSite site;
    MethodHandles.Lookup lookup = MethodHandles.lookup();
    switch(i) {
        case 1:
            site = GraalDirectives.opaque(new ConstantCallSite(lookup.findVirtual(String.class, "replace", MethodType.methodType(String.class, char.class, char.class))));
            break;
        default:
            site = GraalDirectives.opaque(new ConstantCallSite(lookup.findStatic(java.util.Arrays.class, "asList", MethodType.methodType(java.util.List.class, Object[].class))));
    }
    return site.getTarget().toString();
}

Example 17 with ConstantCallSite

use of java.lang.invoke.ConstantCallSite in project openj9 by eclipse.

the class ConstantCallSiteTest method testBasicNegative_ConstantCallSite.

/**
 * A basic negative test for ConstantCallSite
 * @throws Throwable
 */
@Test(groups = { "level.extended" })
public void testBasicNegative_ConstantCallSite() throws Throwable {
    MethodHandle mh = MethodHandles.lookup().findStatic(SamePackageExample.class, "addPublicStatic", MethodType.methodType(int.class, int.class, int.class));
    ConstantCallSite ccs = new ConstantCallSite(mh);
    boolean wmtHit = false;
    try {
        int result = (int) ccs.dynamicInvoker().invokeExact(1, 2, 3);
        AssertJUnit.assertEquals(3, result);
    } catch (WrongMethodTypeException e) {
        wmtHit = true;
    }
    AssertJUnit.assertTrue(wmtHit);
}

Example 18 with ConstantCallSite

use of java.lang.invoke.ConstantCallSite in project openj9 by eclipse.

the class ConstantCallSiteTest method testType_ConstantCallSite.

/**
 * Test for ConstantCallSite.type()
 * @throws Throwable
 */
@Test(groups = { "level.extended" })
public void testType_ConstantCallSite() throws Throwable {
    MethodType mt = MethodType.methodType(int.class, int.class, int.class);
    MethodHandle mh = MethodHandles.lookup().findStatic(SamePackageExample.class, "addPublicStatic", mt);
    ConstantCallSite ccs = new ConstantCallSite(mh);
    AssertJUnit.assertEquals(mt, ccs.type());
}

Example 19 with ConstantCallSite

use of java.lang.invoke.ConstantCallSite in project openj9 by eclipse.

the class ConstantCallSiteTest method testUnconstructedCCS.

@Test(groups = { "level.extended" })
public void testUnconstructedCCS() throws Throwable {
    ConstantCallSiteTest ccs = new ConstantCallSiteTest();
    MethodHandle hookMH = MethodHandles.lookup().bind(ccs, "hook", MethodType.methodType(MethodHandle.class, ConstantCallSite.class));
    try {
        ConstantCallSite cs = new MyConstantCallSite(MethodType.methodType(void.class), hookMH);
    } catch (NullPointerException e) {
    }
    ;
    boolean illegalState = false;
    try {
        ccs.unconstructedCS.dynamicInvoker();
    } catch (IllegalStateException e) {
        illegalState = true;
    }
    AssertJUnit.assertTrue(illegalState);
    illegalState = false;
    try {
        ccs.unconstructedCS.getTarget();
    } catch (IllegalStateException e) {
        illegalState = true;
    }
    AssertJUnit.assertTrue(illegalState);
    illegalState = false;
    try {
        ccs.unconstructedCS.type();
    } catch (IllegalStateException e) {
        illegalState = true;
    }
    AssertJUnit.assertFalse(illegalState);
}

Example 20 with ConstantCallSite

use of java.lang.invoke.ConstantCallSite in project openj9 by eclipse.

the class ConstantCallSiteTest method testBasic_ConstantCallSite.

/**
 * A basic sanity test for ConstantCallSite
 * @throws Throwable
 */
@Test(groups = { "level.extended" })
public void testBasic_ConstantCallSite() throws Throwable {
    MethodHandle mh = MethodHandles.lookup().findStatic(SamePackageExample.class, "addPublicStatic", MethodType.methodType(int.class, int.class, int.class));
    ConstantCallSite ccs = new ConstantCallSite(mh);
    int result = (int) ccs.dynamicInvoker().invokeExact(1, 2);
    AssertJUnit.assertEquals(3, result);
    AssertJUnit.assertEquals(mh, ccs.getTarget());
    AssertJUnit.assertEquals(mh.type(), ccs.type());
}