Examples with Field com.oracle.truffle.espresso.impl.Field used on opensource projects

Example 16 with Field

use of com.oracle.truffle.espresso.impl.Field in project graal by oracle.

the class JniEnv method SetDoubleField.

@JniImpl
public void SetDoubleField(@JavaType(Object.class) StaticObject obj, @Handle(Field.class) long fieldId, double val) {
    Field field = fieldIds.getObject(fieldId);
    field.set(obj, val);
}

Example 17 with Field

use of com.oracle.truffle.espresso.impl.Field in project graal by oracle.

the class JniEnv method GetFieldID.

// Checkstyle: stop method name check
// region Get*ID
/**
 * <h3>jfieldID GetFieldID(JNIEnv *env, jclass clazz, const char *name, const char *sig);</h3>
 * <p>
 * Returns the field ID for an instance (nonstatic) field of a class. The field is specified by
 * its name and signature. The Get<type>Field and Set<type>Field families of accessor functions
 * use field IDs to retrieve object fields. GetFieldID() causes an uninitialized class to be
 * initialized. GetFieldID() cannot be used to obtain the length field of an array. Use
 * GetArrayLength() instead.
 *
 * @param clazz a Java class object.
 * @param namePtr the field name in a 0-terminated modified UTF-8 string.
 * @param typePtr the field signature in a 0-terminated modified UTF-8 string.
 * @return a field ID, or NULL if the operation fails.
 * @throws NoSuchFieldError: if the specified field cannot be found.
 * @throws ExceptionInInitializerError: if the class initializer fails due to an exception.
 * @throws OutOfMemoryError: if the system runs out of memory.
 */
@JniImpl
@Handle(Field.class)
public long GetFieldID(@JavaType(Class.class) StaticObject clazz, @Pointer TruffleObject namePtr, @Pointer TruffleObject typePtr) {
    String name = NativeUtils.interopPointerToString(namePtr);
    String type = NativeUtils.interopPointerToString(typePtr);
    assert name != null && type != null;
    Klass klass = clazz.getMirrorKlass();
    Field field = null;
    Symbol<Name> fieldName = getNames().lookup(name);
    if (fieldName != null) {
        Symbol<Type> fieldType = getTypes().lookup(type);
        if (fieldType != null) {
            // Lookup only if name and type are known symbols.
            klass.safeInitialize();
            field = klass.lookupField(fieldName, fieldType);
            assert field == null || field.getType().equals(fieldType);
        }
    }
    if (field == null || field.isStatic()) {
        Meta meta = getMeta();
        throw meta.throwExceptionWithMessage(meta.java_lang_NoSuchFieldError, name);
    }
    assert !field.isStatic();
    return fieldIds.handlify(field);
}

Example 18 with Field

use of com.oracle.truffle.espresso.impl.Field in project graal by oracle.

the class VM method getGuestReflectiveFieldRoot.

@JavaType(java.lang.reflect.Field.class)
private static StaticObject getGuestReflectiveFieldRoot(@JavaType(java.lang.reflect.Field.class) StaticObject seed, Meta meta) {
    assert InterpreterToVM.instanceOf(seed, meta.java_lang_reflect_Field);
    StaticObject curField = seed;
    Field target = null;
    while (target == null) {
        target = (Field) meta.HIDDEN_FIELD_KEY.getHiddenObject(curField);
        if (target == null) {
            curField = meta.java_lang_reflect_Field_root.getObject(curField);
        }
    }
    return curField;
}

Example 19 with Field

use of com.oracle.truffle.espresso.impl.Field in project graal by oracle.

the class Target_sun_misc_Unsafe method putOrderedObject.

@Substitution(hasReceiver = true)
public static void putOrderedObject(@SuppressWarnings("unused") @JavaType(Unsafe.class) StaticObject self, @JavaType(Object.class) StaticObject holder, long offset, @JavaType(Object.class) StaticObject value, @Inject Meta meta) {
    if (isNullOrArray(holder)) {
        UnsafeAccess.getIfAllowed(meta).putOrderedObject(unwrapNullOrArray(holder), offset, value);
        return;
    }
    // TODO(peterssen): Current workaround assumes it's a field access, encoding is offset <->
    // field index.
    Field f = getInstanceFieldFromIndex(holder, Math.toIntExact(offset) - SAFETY_FIELD_OFFSET);
    assert f != null;
    // TODO(peterssen): Volatile is stronger than needed.
    f.setObject(holder, value, true);
}

Example 20 with Field

use of com.oracle.truffle.espresso.impl.Field in project graal by oracle.

the class Target_sun_misc_Unsafe method putLong.

@Substitution(hasReceiver = true)
public static void putLong(@SuppressWarnings("unused") @JavaType(Unsafe.class) StaticObject self, @JavaType(Object.class) StaticObject holder, long offset, long value, @Inject Meta meta) {
    if (isNullOrArray(holder)) {
        UnsafeAccess.getIfAllowed(meta).putLong(unwrapNullOrArray(holder), offset, value);
        return;
    }
    // TODO(peterssen): Current workaround assumes it's a field access, encoding is offset <->
    // field index.
    Field f = getInstanceFieldFromIndex(holder, Math.toIntExact(offset) - SAFETY_FIELD_OFFSET);
    assert f != null;
    f.setLong(holder, value);
}