Java ScriptObject.put方法代码示例

import jdk.nashorn.internal.runtime.ScriptObject; //导入方法依赖的package包/类
/**
 * Nashorn extension: Error.prototype.stack
 * "stack" property is a string typed value containing JavaScript stack frames.
 * Each frame information is separated bv "\n" character.
 *
 * @param self  self reference
 *
 * @return      value of "stack" property
 */
public static Object getStack(final Object self) {
    final ScriptObject sobj = Global.checkObject(self);
    if (sobj.has(STACK)) {
        return sobj.get(STACK);
    }

    final Object exception = ECMAException.getException(sobj);
    if (exception instanceof Throwable) {
        final Object value = getScriptStackString(sobj, (Throwable)exception);
        if (sobj.hasOwnProperty(STACK)) {
            sobj.put(STACK, value, false);
        } else {
            sobj.addOwnProperty(STACK, Attribute.NOT_ENUMERABLE, value);
        }

        return value;
    }

    return UNDEFINED;
}
 

import jdk.nashorn.internal.runtime.ScriptObject; //导入方法依赖的package包/类
/**
 * Nashorn extension: Error.prototype.lineNumber
 *
 * @param self  self reference
 * @param value value of line number
 *
 * @return value that was set
 */
public static Object setLineNumber(final Object self, final Object value) {
    final ScriptObject sobj = Global.checkObject(self);
    if (sobj.hasOwnProperty(LINENUMBER)) {
        sobj.put(LINENUMBER, value, false);
    } else {
        sobj.addOwnProperty(LINENUMBER, Attribute.NOT_ENUMERABLE, value);
    }
    return value;
}
 

import jdk.nashorn.internal.runtime.ScriptObject; //导入方法依赖的package包/类
/**
 * Nashorn extension: Error.prototype.columnNumber
 *
 * @param self  self reference
 * @param value value of column number
 *
 * @return value that was set
 */
public static Object setColumnNumber(final Object self, final Object value) {
    final ScriptObject sobj = Global.checkObject(self);
    if (sobj.hasOwnProperty(COLUMNNUMBER)) {
        sobj.put(COLUMNNUMBER, value, false);
    } else {
        sobj.addOwnProperty(COLUMNNUMBER, Attribute.NOT_ENUMERABLE, value);
    }
    return value;
}
 

import jdk.nashorn.internal.runtime.ScriptObject; //导入方法依赖的package包/类
/**
 * Nashorn extension: Error.prototype.fileName
 *
 * @param self  self reference
 * @param value value of file name
 *
 * @return value that was set
 */
public static Object setFileName(final Object self, final Object value) {
    final ScriptObject sobj = Global.checkObject(self);
    if (sobj.hasOwnProperty(FILENAME)) {
        sobj.put(FILENAME, value, false);
    } else {
        sobj.addOwnProperty(FILENAME, Attribute.NOT_ENUMERABLE, value);
    }
    return value;
}
 

import jdk.nashorn.internal.runtime.ScriptObject; //导入方法依赖的package包/类
/**
 * Nashorn extension
 * Accessed from {@link Global} while setting up the Error.prototype
 *
 * @param self   self reference
 * @param value  value to set "stack" property to, must be {@code ScriptObject}
 *
 * @return value that was set
 */
public static Object setStack(final Object self, final Object value) {
    final ScriptObject sobj = Global.checkObject(self);
    if (sobj.hasOwnProperty(STACK)) {
        sobj.put(STACK, value, false);
    } else {
        sobj.addOwnProperty(STACK, Attribute.NOT_ENUMERABLE, value);
    }
    return value;
}
 

import jdk.nashorn.internal.runtime.ScriptObject; //导入方法依赖的package包/类
@Test
public void reflectionTest() {
    final Options options = new Options("");
    final ErrorManager errors = new ErrorManager();
    final Context cx = new Context(options, errors, Thread.currentThread().getContextClassLoader());
    final boolean strict = cx.getEnv()._strict;
    final Global oldGlobal = Context.getGlobal();
    Context.setGlobal(cx.createGlobal());

    try {
        final String code = "var obj = { x: 344, y: 42 }";
        eval(cx, "<reflectionTest>", code);

        final Object obj = Context.getGlobal().get("obj");

        assertTrue(obj instanceof ScriptObject);

        final ScriptObject sobj = (ScriptObject)obj;
        int count = 0;
        for (final Map.Entry<?, ?> ex : sobj.entrySet()) {
            final Object key = ex.getKey();
            if (key.equals("x")) {
                assertTrue(ex.getValue() instanceof Number);
                assertTrue(344.0 == ((Number)ex.getValue()).doubleValue());

                count++;
            } else if (key.equals("y")) {
                assertTrue(ex.getValue() instanceof Number);
                assertTrue(42.0 == ((Number)ex.getValue()).doubleValue());

                count++;
            }
        }
        assertEquals(count, 2);
        assertEquals(sobj.size(), 2);

        // add property
        sobj.put("zee", "hello", strict);
        assertEquals(sobj.get("zee"), "hello");
        assertEquals(sobj.size(), 3);

    } finally {
        Context.setGlobal(oldGlobal);
    }
}