本文整理匯總了Java中java.lang.invoke.CallSite類的典型用法代碼示例。如果您正苦於以下問題:Java CallSite類的具體用法?Java CallSite怎麽用?Java CallSite使用的例子?那麽, 這裏精選的類代碼示例或許可以為您提供幫助。
CallSite類屬於java.lang.invoke包,在下文中一共展示了CallSite類的15個代碼示例,這些例子默認根據受歡迎程度排序。您可以為喜歡或者感覺有用的代碼點讚,您的評價將有助於係統推薦出更棒的Java代碼示例。
示例1: main
import java.lang.invoke.CallSite; //導入依賴的package包/類
public static void main(String[] args) throws Throwable {
l = MethodHandles.lookup();
h = l.findVirtual(LambdaReceiver_A.class, "f", mt(int.class));
MethodType X = mt(int.class, LambdaReceiverBridge.class);
MethodType A = mt(int.class, LambdaReceiver_A.class);
MethodType mti = mt(IA.class);
CallSite cs = LambdaMetafactory.altMetafactory(l, "m", mti,X,h,X,
LambdaMetafactory.FLAG_BRIDGES, 1, A);
IA p = (IA)cs.dynamicInvoker().invoke();
LambdaReceiver_A lra = new LambdaReceiver_A();
try {
p.m(lra);
} catch (ClassCastException cce) {
return;
}
throw new AssertionError("CCE expected");
}
示例2: generateMethodTest2
import java.lang.invoke.CallSite; //導入依賴的package包/類
/**
* Generate test with an invokedynamic, a static bootstrap method without extra args and
* args to the target method.
*/
private void generateMethodTest2(ClassVisitor cv) {
MethodVisitor mv = cv.visitMethod(Opcodes.ACC_PUBLIC + Opcodes.ACC_STATIC, "test2", "()V",
null, null);
MethodType mt = MethodType.methodType(
CallSite.class, MethodHandles.Lookup.class, String.class, MethodType.class);
Handle bootstrap = new Handle( Opcodes.H_INVOKESTATIC, Type.getInternalName(InvokeCustom.class),
"bsmLookupStatic", mt.toMethodDescriptorString(), false);
mv.visitLdcInsn(new Boolean(true));
mv.visitLdcInsn(new Byte((byte) 127));
mv.visitLdcInsn(new Character('c'));
mv.visitLdcInsn(new Short((short) 1024));
mv.visitLdcInsn(new Integer(123456));
mv.visitLdcInsn(new Float(1.2f));
mv.visitLdcInsn(new Long(123456789));
mv.visitLdcInsn(new Double(3.5123456789));
mv.visitLdcInsn("String");
mv.visitInvokeDynamicInsn("targetMethodTest2", "(ZBCSIFJDLjava/lang/String;)V", bootstrap);
mv.visitInsn(Opcodes.RETURN);
mv.visitMaxs(-1, -1);
}
示例3: generateMethodTest4
import java.lang.invoke.CallSite; //導入依賴的package包/類
/**
* Generate test with an invokedynamic, a static bootstrap method with an extra arg that is a
* MethodHandle of kind invokespecial.
*/
private void generateMethodTest4(ClassVisitor cv) {
MethodVisitor mv = cv.visitMethod(Opcodes.ACC_PUBLIC + Opcodes.ACC_STATIC, "test4", "()V",
null, null);
MethodType mt = MethodType.methodType(CallSite.class, MethodHandles.Lookup.class, String.class,
MethodType.class, MethodHandle.class);
Handle bootstrap = new Handle( Opcodes.H_INVOKESTATIC, Type.getInternalName(InvokeCustom.class),
"bsmCreateCallSite", mt.toMethodDescriptorString(), false);
mv.visitTypeInsn(Opcodes.NEW, Type.getInternalName(InvokeCustom.class));
mv.visitInsn(Opcodes.DUP);
mv.visitMethodInsn(
Opcodes.INVOKESPECIAL, Type.getInternalName(InvokeCustom.class), "<init>", "()V", false);
mv.visitInvokeDynamicInsn("targetMethodTest5", "(Linvokecustom/InvokeCustom;)V", bootstrap,
new Handle( Opcodes.H_INVOKESPECIAL, Type.getInternalName(Super.class),
"targetMethodTest5", "()V", false));
mv.visitInsn(Opcodes.RETURN);
mv.visitMaxs(-1, -1);
}
示例4: generateMethodTest5
import java.lang.invoke.CallSite; //導入依賴的package包/類
/**
* Generate test with an invokedynamic, a static bootstrap method with an extra arg that is a
* MethodHandle of kind invoke interface. The target method is a default method into an interface
* that shadows another default method from a super interface.
*/
private void generateMethodTest5(ClassVisitor cv) {
MethodVisitor mv = cv.visitMethod(Opcodes.ACC_PUBLIC + Opcodes.ACC_STATIC, "test5", "()V",
null, null);
MethodType mt = MethodType.methodType(CallSite.class, MethodHandles.Lookup.class, String.class,
MethodType.class, MethodHandle.class);
Handle bootstrap = new Handle(Opcodes.H_INVOKESTATIC, Type.getInternalName(InvokeCustom.class),
"bsmCreateCallCallingtargetMethodTest6", mt.toMethodDescriptorString(), false);
mv.visitTypeInsn(Opcodes.NEW, Type.getInternalName(InvokeCustom.class));
mv.visitInsn(Opcodes.DUP);
mv.visitMethodInsn(
Opcodes.INVOKESPECIAL, Type.getInternalName(InvokeCustom.class), "<init>", "()V", false);
mv.visitInvokeDynamicInsn("targetMethodTest6", "(Linvokecustom/I;)V", bootstrap,
new Handle(Opcodes.H_INVOKEINTERFACE, Type.getInternalName(I.class),
"targetMethodTest6", "()V", true));
mv.visitInsn(Opcodes.RETURN);
mv.visitMaxs(-1, -1);
}
示例5: generateMethodTest6
import java.lang.invoke.CallSite; //導入依賴的package包/類
/**
* Generate test with an invokedynamic, a static bootstrap method with an extra arg that is a
* MethodHandle of kind invoke interface. The target method is a default method into an interface
* that is at the end of a chain of interfaces.
*/
private void generateMethodTest6(ClassVisitor cv) {
MethodVisitor mv = cv.visitMethod(Opcodes.ACC_PUBLIC + Opcodes.ACC_STATIC, "test6", "()V",
null, null);
MethodType mt = MethodType.methodType(CallSite.class, MethodHandles.Lookup.class, String.class,
MethodType.class, MethodHandle.class);
Handle bootstrap = new Handle(Opcodes.H_INVOKESTATIC, Type.getInternalName(InvokeCustom.class),
"bsmCreateCallCallingtargetMethodTest7", mt.toMethodDescriptorString(), false);
mv.visitTypeInsn(Opcodes.NEW, Type.getInternalName(InvokeCustom.class));
mv.visitInsn(Opcodes.DUP);
mv.visitMethodInsn(
Opcodes.INVOKESPECIAL, Type.getInternalName(InvokeCustom.class), "<init>", "()V", false);
mv.visitInvokeDynamicInsn("targetMethodTest7", "(Linvokecustom/J;)V", bootstrap,
new Handle(Opcodes.H_INVOKEINTERFACE, Type.getInternalName(J.class),
"targetMethodTest7", "()V", true));
mv.visitInsn(Opcodes.RETURN);
mv.visitMaxs(-1, -1);
}
示例6: generateMethodTest7
import java.lang.invoke.CallSite; //導入依賴的package包/類
/**
* Generate test with an invokedynamic, a static bootstrap method with an extra arg that is a
* MethodHandle of kind invoke interface. The target method is a method into an interface
* that is shadowed by another definition into a sub interfaces.
*/
private void generateMethodTest7(ClassVisitor cv) {
MethodVisitor mv = cv.visitMethod(Opcodes.ACC_PUBLIC + Opcodes.ACC_STATIC, "test7", "()V",
null, null);
MethodType mt = MethodType.methodType(CallSite.class, MethodHandles.Lookup.class, String.class,
MethodType.class, MethodHandle.class);
Handle bootstrap = new Handle(Opcodes.H_INVOKESTATIC, Type.getInternalName(InvokeCustom.class),
"bsmCreateCallCallingtargetMethodTest8", mt.toMethodDescriptorString(), false);
mv.visitTypeInsn(Opcodes.NEW, Type.getInternalName(InvokeCustom.class));
mv.visitInsn(Opcodes.DUP);
mv.visitMethodInsn(
Opcodes.INVOKESPECIAL, Type.getInternalName(InvokeCustom.class), "<init>", "()V", false);
mv.visitInvokeDynamicInsn("targetMethodTest8", "(Linvokecustom/J;)V", bootstrap,
new Handle(Opcodes.H_INVOKEINTERFACE, Type.getInternalName(J.class),
"targetMethodTest8", "()V", true));
mv.visitInsn(Opcodes.RETURN);
mv.visitMaxs(-1, -1);
}
示例7: generateMethodTest8
import java.lang.invoke.CallSite; //導入依賴的package包/類
/**
* Generate test with an invokedynamic, a static bootstrap method with an extra arg that is a
* MethodHandle of kind invoke virtual. The target method is a method into an interface that is
* not shadowed by an implementation into a classes implementing the interface.
*/
private void generateMethodTest8(ClassVisitor cv) {
MethodVisitor mv = cv.visitMethod(Opcodes.ACC_PUBLIC + Opcodes.ACC_STATIC, "test8", "()V",
null, null);
MethodType mt = MethodType.methodType(CallSite.class, MethodHandles.Lookup.class, String.class,
MethodType.class, MethodHandle.class);
Handle bootstrap = new Handle(Opcodes.H_INVOKESTATIC, Type.getInternalName(InvokeCustom.class),
"bsmCreateCallCallingtargetMethodTest9", mt.toMethodDescriptorString(), false);
mv.visitTypeInsn(Opcodes.NEW, Type.getInternalName(InvokeCustom.class));
mv.visitInsn(Opcodes.DUP);
mv.visitMethodInsn(
Opcodes.INVOKESPECIAL, Type.getInternalName(InvokeCustom.class), "<init>", "()V", false);
mv.visitInvokeDynamicInsn("targetMethodTest9", "(Linvokecustom/InvokeCustom;)V", bootstrap,
new Handle(Opcodes.H_INVOKEVIRTUAL, Type.getInternalName(InvokeCustom.class),
"targetMethodTest9", "()V", false));
mv.visitInsn(Opcodes.RETURN);
mv.visitMaxs(-1, -1);
}
示例8: generateMethodTest9
import java.lang.invoke.CallSite; //導入依賴的package包/類
/**
* Generate test with an invokedynamic, a static bootstrap method with an extra arg that is a
* MethodHandle of kind invoke virtual. The target method is a method into a class implementing
* an abstract method and that shadows a default method from an interface.
*/
private void generateMethodTest9(ClassVisitor cv) {
MethodVisitor mv = cv.visitMethod(Opcodes.ACC_PUBLIC + Opcodes.ACC_STATIC, "test9", "()V",
null, null);
MethodType mt = MethodType.methodType(CallSite.class, MethodHandles.Lookup.class, String.class,
MethodType.class, MethodHandle.class);
Handle bootstrap = new Handle(Opcodes.H_INVOKESTATIC, Type.getInternalName(InvokeCustom.class),
"bsmCreateCallCallingtargetMethodTest10", mt.toMethodDescriptorString(), false);
mv.visitTypeInsn(Opcodes.NEW, Type.getInternalName(InvokeCustom.class));
mv.visitInsn(Opcodes.DUP);
mv.visitMethodInsn(
Opcodes.INVOKESPECIAL, Type.getInternalName(InvokeCustom.class), "<init>", "()V", false);
mv.visitInvokeDynamicInsn("targetMethodTest10", "(Linvokecustom/InvokeCustom;)V", bootstrap,
new Handle(Opcodes.H_INVOKEVIRTUAL, Type.getInternalName(InvokeCustom.class),
"targetMethodTest10", "()V", false));
mv.visitInsn(Opcodes.RETURN);
mv.visitMaxs(-1, -1);
}
示例9: generateMethodTest10
import java.lang.invoke.CallSite; //導入依賴的package包/類
/**
* Generate test with an invokedynamic, a static bootstrap method with an extra arg that is a
* MethodHandle of kind get static. The method handle read a static field from a class.
*/
private void generateMethodTest10(ClassVisitor cv) {
MethodVisitor mv = cv.visitMethod(Opcodes.ACC_PUBLIC + Opcodes.ACC_STATIC, "test10", "()V",
null, null);
MethodType mt = MethodType.methodType(CallSite.class, MethodHandles.Lookup.class, String.class,
MethodType.class, MethodHandle.class);
Handle bootstrap = new Handle(Opcodes.H_INVOKESTATIC, Type.getInternalName(InvokeCustom.class),
"bsmCreateCallCallingtargetMethod", mt.toMethodDescriptorString(), false);
mv.visitFieldInsn(Opcodes.GETSTATIC,
"java/lang/System",
"out",
"Ljava/io/PrintStream;");
mv.visitInvokeDynamicInsn("staticField1", "()Ljava/lang/String;", bootstrap,
new Handle(Opcodes.H_GETSTATIC, Type.getInternalName(InvokeCustom.class),
"staticField1", "Ljava/lang/String;", false));
mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL,
"java/io/PrintStream",
"println",
"(Ljava/lang/String;)V", false);
mv.visitInsn(Opcodes.RETURN);
mv.visitMaxs(-1, -1);
}
示例10: generateMethodTest12
import java.lang.invoke.CallSite; //導入依賴的package包/類
/**
* Generate test with an invokedynamic, a static bootstrap method with an extra arg that is a
* MethodHandle of kind get instance. The method handle read an instance field from a class.
*/
private void generateMethodTest12(ClassVisitor cv) {
MethodVisitor mv = cv.visitMethod(Opcodes.ACC_PUBLIC + Opcodes.ACC_STATIC, "test12", "()V",
null, null);
MethodType mt = MethodType.methodType(CallSite.class, MethodHandles.Lookup.class, String.class,
MethodType.class, MethodHandle.class);
Handle bootstrap = new Handle(Opcodes.H_INVOKESTATIC, Type.getInternalName(InvokeCustom.class),
"bsmCreateCallCallingtargetMethod", mt.toMethodDescriptorString(), false);
mv.visitFieldInsn(Opcodes.GETSTATIC,
"java/lang/System",
"out",
"Ljava/io/PrintStream;");
mv.visitTypeInsn(Opcodes.NEW, Type.getInternalName(InvokeCustom.class));
mv.visitInsn(Opcodes.DUP);
mv.visitMethodInsn(
Opcodes.INVOKESPECIAL, Type.getInternalName(InvokeCustom.class), "<init>", "()V", false);
mv.visitInvokeDynamicInsn("instanceField1", "(Linvokecustom/InvokeCustom;)Ljava/lang/String;",
bootstrap, new Handle(Opcodes.H_GETFIELD, Type.getInternalName(InvokeCustom.class),
"instanceField1", "Ljava/lang/String;", false));
mv.visitMethodInsn(Opcodes.INVOKEVIRTUAL,
"java/io/PrintStream",
"println",
"(Ljava/lang/String;)V", false);
mv.visitInsn(Opcodes.RETURN);
mv.visitMaxs(-1, -1);
}
示例11: testOneType
import java.lang.invoke.CallSite; //導入依賴的package包/類
/** calls toString() on integers, twice */
public void testOneType() throws Throwable {
CallSite site = DefBootstrap.bootstrap(MethodHandles.publicLookup(),
"toString",
MethodType.methodType(String.class, Object.class),
0,
DefBootstrap.METHOD_CALL, "");
MethodHandle handle = site.dynamicInvoker();
assertDepthEquals(site, 0);
// invoke with integer, needs lookup
assertEquals("5", (String)handle.invokeExact((Object)5));
assertDepthEquals(site, 1);
// invoked with integer again: should be cached
assertEquals("6", (String)handle.invokeExact((Object)6));
assertDepthEquals(site, 1);
}
示例12: testTwoTypes
import java.lang.invoke.CallSite; //導入依賴的package包/類
public void testTwoTypes() throws Throwable {
CallSite site = DefBootstrap.bootstrap(MethodHandles.publicLookup(),
"toString",
MethodType.methodType(String.class, Object.class),
0,
DefBootstrap.METHOD_CALL, "");
MethodHandle handle = site.dynamicInvoker();
assertDepthEquals(site, 0);
assertEquals("5", (String)handle.invokeExact((Object)5));
assertDepthEquals(site, 1);
assertEquals("1.5", (String)handle.invokeExact((Object)1.5f));
assertDepthEquals(site, 2);
// both these should be cached
assertEquals("6", (String)handle.invokeExact((Object)6));
assertDepthEquals(site, 2);
assertEquals("2.5", (String)handle.invokeExact((Object)2.5f));
assertDepthEquals(site, 2);
}
示例13: testTooManyTypes
import java.lang.invoke.CallSite; //導入依賴的package包/類
public void testTooManyTypes() throws Throwable {
// if this changes, test must be rewritten
assertEquals(5, DefBootstrap.PIC.MAX_DEPTH);
CallSite site = DefBootstrap.bootstrap(MethodHandles.publicLookup(),
"toString",
MethodType.methodType(String.class, Object.class),
0,
DefBootstrap.METHOD_CALL, "");
MethodHandle handle = site.dynamicInvoker();
assertDepthEquals(site, 0);
assertEquals("5", (String)handle.invokeExact((Object)5));
assertDepthEquals(site, 1);
assertEquals("1.5", (String)handle.invokeExact((Object)1.5f));
assertDepthEquals(site, 2);
assertEquals("6", (String)handle.invokeExact((Object)6L));
assertDepthEquals(site, 3);
assertEquals("3.2", (String)handle.invokeExact((Object)3.2d));
assertDepthEquals(site, 4);
assertEquals("foo", (String)handle.invokeExact((Object)"foo"));
assertDepthEquals(site, 5);
assertEquals("c", (String)handle.invokeExact((Object)'c'));
assertDepthEquals(site, 5);
}
示例14: relinkComposableInvoker
import java.lang.invoke.CallSite; //導入依賴的package包/類
private static void relinkComposableInvoker(final CallSite cs, final CompiledFunction inv, final boolean constructor) {
final HandleAndAssumptions handleAndAssumptions = inv.getValidOptimisticInvocation(new Supplier<MethodHandle>() {
@Override
public MethodHandle get() {
return inv.getInvokerOrConstructor(constructor);
}
});
final MethodHandle handle = handleAndAssumptions.handle;
final SwitchPoint assumptions = handleAndAssumptions.assumptions;
final MethodHandle target;
if(assumptions == null) {
target = handle;
} else {
final MethodHandle relink = MethodHandles.insertArguments(RELINK_COMPOSABLE_INVOKER, 0, cs, inv, constructor);
target = assumptions.guardWithTest(handle, MethodHandles.foldArguments(cs.dynamicInvoker(), relink));
}
cs.setTarget(target.asType(cs.type()));
}
示例15: main
import java.lang.invoke.CallSite; //導入依賴的package包/類
public static void main(String[] args) throws Throwable {
l = MethodHandles.lookup();
h = l.findVirtual(LambdaReceiver_A.class, "f", mt(int.class));
MethodType X = mt(int.class, LambdaReceiver.class);
MethodType A = mt(int.class, LambdaReceiver_A.class);
MethodType mti = mt(IA.class);
CallSite cs = LambdaMetafactory.metafactory(l, "m", mti,A,h,X);
IA p = (IA)cs.dynamicInvoker().invoke();
LambdaReceiver_A lra = new LambdaReceiver_A();
try {
p.m(lra);
} catch (ClassCastException cce) {
return;
}
throw new AssertionError("CCE expected");
}