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Java Bootstrap.createDynamicInvoker方法代码示例

本文整理汇总了Java中jdk.nashorn.internal.runtime.linker.Bootstrap.createDynamicInvoker方法的典型用法代码示例。如果您正苦于以下问题:Java Bootstrap.createDynamicInvoker方法的具体用法?Java Bootstrap.createDynamicInvoker怎么用?Java Bootstrap.createDynamicInvoker使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在jdk.nashorn.internal.runtime.linker.Bootstrap的用法示例。


在下文中一共展示了Bootstrap.createDynamicInvoker方法的8个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Java代码示例。

示例1: bindAllProperties

import jdk.nashorn.internal.runtime.linker.Bootstrap; //导入方法依赖的package包/类
/**
 * Binds the source mirror object's properties to the target object. Binding
 * properties allows two-way read/write for the properties of the source object.
 * All inherited, enumerable properties are also bound. This method is used to
 * to make 'with' statement work with ScriptObjectMirror as scope object.
 *
 * @param target the target object to which the source object's properties are bound
 * @param source the source object whose properties are bound to the target
 * @return the target object after property binding
 */
public static Object bindAllProperties(final ScriptObject target, final ScriptObjectMirror source) {
    final Set<String> keys = source.keySet();
    // make accessor properties using dynamic invoker getters and setters
    final AccessorProperty[] props = new AccessorProperty[keys.size()];
    int idx = 0;
    for (final String name : keys) {
        final MethodHandle getter = Bootstrap.createDynamicInvoker("dyn:getMethod|getProp|getElem:" + name, MIRROR_GETTER_TYPE);
        final MethodHandle setter = Bootstrap.createDynamicInvoker("dyn:setProp|setElem:" + name, MIRROR_SETTER_TYPE);
        props[idx] = AccessorProperty.create(name, 0, getter, setter);
        idx++;
    }

    target.addBoundProperties(source, props);
    return target;
}
 
开发者ID:SunburstApps,项目名称:OpenJSharp,代码行数:26,代码来源:NativeObject.java

示例2: findCallMethodMethod

import jdk.nashorn.internal.runtime.linker.Bootstrap; //导入方法依赖的package包/类
/**
 * Find an implementation for a "dyn:callMethod" operation. Note that Nashorn internally never uses
 * "dyn:callMethod", but instead always emits two call sites in bytecode, one for "dyn:getMethod", and then another
 * one for "dyn:call". Explicit support for "dyn:callMethod" is provided for the benefit of potential external
 * callers. The implementation itself actually folds a "dyn:getMethod" method handle into a "dyn:call" method handle.
 *
 * @param desc    the call site descriptor.
 * @param request the link request
 *
 * @return GuardedInvocation to be invoked at call site.
 */
protected GuardedInvocation findCallMethodMethod(final CallSiteDescriptor desc, final LinkRequest request) {
    // R(P0, P1, ...)
    final MethodType callType = desc.getMethodType();
    // use type Object(P0) for the getter
    final CallSiteDescriptor getterType = desc.changeMethodType(MethodType.methodType(Object.class, callType.parameterType(0)));
    final GuardedInvocation getter = findGetMethod(getterType, request, "getMethod");

    // Object(P0) => Object(P0, P1, ...)
    final MethodHandle argDroppingGetter = MH.dropArguments(getter.getInvocation(), 1, callType.parameterList().subList(1, callType.parameterCount()));
    // R(Object, P0, P1, ...)
    final MethodHandle invoker = Bootstrap.createDynamicInvoker("dyn:call", callType.insertParameterTypes(0, argDroppingGetter.type().returnType()));
    // Fold Object(P0, P1, ...) into R(Object, P0, P1, ...) => R(P0, P1, ...)
    return getter.replaceMethods(MH.foldArguments(invoker, argDroppingGetter), getter.getGuard());
}
 
开发者ID:SunburstApps,项目名称:OpenJSharp,代码行数:26,代码来源:ScriptObject.java

示例3: getINVOKE_UA_GETTER

import jdk.nashorn.internal.runtime.linker.Bootstrap; //导入方法依赖的package包/类
static MethodHandle getINVOKE_UA_GETTER(final Class<?> returnType, final int programPoint) {
    if (UnwarrantedOptimismException.isValid(programPoint)) {
        final int flags = NashornCallSiteDescriptor.CALLSITE_OPTIMISTIC | programPoint << CALLSITE_PROGRAM_POINT_SHIFT;
        return Bootstrap.createDynamicInvoker("dyn:call", flags, returnType, Object.class, Object.class);
    } else {
        return Bootstrap.createDynamicInvoker("dyn:call", Object.class, Object.class, Object.class);
    }
}
 
开发者ID:SunburstApps,项目名称:OpenJSharp,代码行数:9,代码来源:UserAccessorProperty.java

示例4: getINVOKE_UA_GETTER

import jdk.nashorn.internal.runtime.linker.Bootstrap; //导入方法依赖的package包/类
static MethodHandle getINVOKE_UA_GETTER(final Class<?> returnType, final int programPoint) {
    if (UnwarrantedOptimismException.isValid(programPoint)) {
        final int flags = NashornCallSiteDescriptor.CALL | NashornCallSiteDescriptor.CALLSITE_OPTIMISTIC | programPoint << CALLSITE_PROGRAM_POINT_SHIFT;
        return Bootstrap.createDynamicInvoker("", flags, returnType, Object.class, Object.class);
    } else {
        return Bootstrap.createDynamicCallInvoker(Object.class, Object.class, Object.class);
    }
}
 
开发者ID:AdoptOpenJDK,项目名称:openjdk-jdk10,代码行数:9,代码来源:UserAccessorProperty.java

示例5: findCallMethodMethod

import jdk.nashorn.internal.runtime.linker.Bootstrap; //导入方法依赖的package包/类
/**
 * Find an implementation for a CALL_METHOD operation. Note that Nashorn internally never uses
 * CALL_METHOD, but instead always emits two call sites in bytecode, one for GET_METHOD, and then another
 * one for CALL. Explicit support for CALL_METHOD is provided for the benefit of potential external
 * callers. The implementation itself actually folds a GET_METHOD method handle into a CALL method handle.
 *
 * @param desc    the call site descriptor.
 * @param request the link request
 *
 * @return GuardedInvocation to be invoked at call site.
 */
protected GuardedInvocation findCallMethodMethod(final CallSiteDescriptor desc, final LinkRequest request) {
    // R(P0, P1, ...)
    final MethodType callType = desc.getMethodType();
    // use type Object(P0) for the getter
    final CallSiteDescriptor getterType = desc.changeMethodType(MethodType.methodType(Object.class, callType.parameterType(0)));
    final GuardedInvocation getter = findGetMethod(getterType, request, StandardOperation.GET_METHOD);

    // Object(P0) => Object(P0, P1, ...)
    final MethodHandle argDroppingGetter = MH.dropArguments(getter.getInvocation(), 1, callType.parameterList().subList(1, callType.parameterCount()));
    // R(Object, P0, P1, ...)
    final MethodHandle invoker = Bootstrap.createDynamicInvoker("", NashornCallSiteDescriptor.CALL, callType.insertParameterTypes(0, argDroppingGetter.type().returnType()));
    // Fold Object(P0, P1, ...) into R(Object, P0, P1, ...) => R(P0, P1, ...)
    return getter.replaceMethods(MH.foldArguments(invoker, argDroppingGetter), getter.getGuard());
}
 
开发者ID:campolake,项目名称:openjdk9,代码行数:26,代码来源:ScriptObject.java

示例6: invokerCreator

import jdk.nashorn.internal.runtime.linker.Bootstrap; //导入方法依赖的package包/类
private static Callable<MethodHandle> invokerCreator(final Class<?> rtype, final Class<?>... ptypes) {
    return new Callable<MethodHandle>() {
        @Override
        public MethodHandle call() {
            return Bootstrap.createDynamicInvoker("dyn:call", rtype, ptypes);
        }
    };
}
 
开发者ID:malaporte,项目名称:kaziranga,代码行数:9,代码来源:ListAdapter.java

示例7: getINVOKE_UA_SETTER

import jdk.nashorn.internal.runtime.linker.Bootstrap; //导入方法依赖的package包/类
static MethodHandle getINVOKE_UA_SETTER(final Class<?> valueType) {
    return Bootstrap.createDynamicInvoker("dyn:call", void.class, Object.class, Object.class, valueType);
}
 
开发者ID:SunburstApps,项目名称:OpenJSharp,代码行数:4,代码来源:UserAccessorProperty.java

示例8: createAccessorProperty

import jdk.nashorn.internal.runtime.linker.Bootstrap; //导入方法依赖的package包/类
private static AccessorProperty createAccessorProperty(final String name) {
    final MethodHandle getter = Bootstrap.createDynamicInvoker(name, NashornCallSiteDescriptor.GET_METHOD_PROPERTY, MIRROR_GETTER_TYPE);
    final MethodHandle setter = Bootstrap.createDynamicInvoker(name, NashornCallSiteDescriptor.SET_PROPERTY, MIRROR_SETTER_TYPE);
    return AccessorProperty.create(name, 0, getter, setter);
}
 
开发者ID:AdoptOpenJDK,项目名称:openjdk-jdk10,代码行数:6,代码来源:NativeObject.java


注:本文中的jdk.nashorn.internal.runtime.linker.Bootstrap.createDynamicInvoker方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。