Examples with JavaType com.oracle.truffle.espresso.substitutions.JavaType used on opensource projects

Example 46 with JavaType

use of com.oracle.truffle.espresso.substitutions.JavaType in project graal by oracle.

the class VM method createACC.

// region privileged
@JavaType(AccessControlContext.class)
private StaticObject createACC(@JavaType(ProtectionDomain[].class) StaticObject context, boolean isPriviledged, @JavaType(AccessControlContext.class) StaticObject priviledgedContext) {
    Klass accKlass = getMeta().java_security_AccessControlContext;
    StaticObject acc = accKlass.allocateInstance();
    getMeta().java_security_AccessControlContext_context.setObject(acc, context);
    getMeta().java_security_AccessControlContext_privilegedContext.setObject(acc, priviledgedContext);
    getMeta().java_security_AccessControlContext_isPrivileged.setBoolean(acc, isPriviledged);
    if (getMeta().java_security_AccessControlContext_isAuthorized != null) {
        getMeta().java_security_AccessControlContext_isAuthorized.setBoolean(acc, true);
    }
    return acc;
}

Example 47 with JavaType

use of com.oracle.truffle.espresso.substitutions.JavaType in project graal by oracle.

the class VM method JVM_GetClassSigners.

@VmImpl(isJni = true)
@JavaType(Object[].class)
public StaticObject JVM_GetClassSigners(@JavaType(Class.class) StaticObject self) {
    Klass klass = self.getMirrorKlass();
    if (klass.isPrimitive()) {
        return StaticObject.NULL;
    }
    StaticObject signersArray = (StaticObject) getMeta().HIDDEN_SIGNERS.getHiddenObject(self);
    if (signersArray == null || StaticObject.isNull(signersArray)) {
        return StaticObject.NULL;
    }
    return signersArray.copy();
}

Example 48 with JavaType

use of com.oracle.truffle.espresso.substitutions.JavaType in project graal by oracle.

the class VM method JVM_GetPermittedSubclasses.

@VmImpl(isJni = true)
@TruffleBoundary
@JavaType(Class[].class)
public StaticObject JVM_GetPermittedSubclasses(@JavaType(Class.class) StaticObject self) {
    Klass k = self.getMirrorKlass();
    if (!(k instanceof ObjectKlass)) {
        return StaticObject.NULL;
    }
    ObjectKlass klass = (ObjectKlass) k;
    if (!klass.isSealed()) {
        return StaticObject.NULL;
    }
    char[] classes = ((PermittedSubclassesAttribute) klass.getAttribute(PermittedSubclassesAttribute.NAME)).getClasses();
    StaticObject[] permittedSubclasses = new StaticObject[classes.length];
    RuntimeConstantPool pool = klass.getConstantPool();
    int nClasses = 0;
    for (int index : classes) {
        Klass permitted;
        try {
            permitted = pool.resolvedKlassAt(klass, index);
        } catch (EspressoException e) {
            /* Suppress and continue */
            continue;
        }
        if (permitted instanceof ObjectKlass) {
            permittedSubclasses[nClasses++] = permitted.mirror();
        }
    }
    if (nClasses == permittedSubclasses.length) {
        return StaticObject.createArray(getMeta().java_lang_Class_array, permittedSubclasses);
    }
    return getMeta().java_lang_Class.allocateReferenceArray(nClasses, (i) -> permittedSubclasses[i]);
}

Example 49 with JavaType

use of com.oracle.truffle.espresso.substitutions.JavaType in project graal by oracle.

the class VM method JVM_GetClassConstantPool.

@VmImpl(isJni = true)
@JavaType(internalName = "Lsun/reflect/ConstantPool;")
public StaticObject JVM_GetClassConstantPool(@JavaType(Class.class) StaticObject self) {
    Klass klass = self.getMirrorKlass();
    if (klass.isArray() || klass.isPrimitive()) {
        // No constant pool for arrays and primitives.
        return StaticObject.NULL;
    }
    StaticObject cp = InterpreterToVM.newObject(getMeta().sun_reflect_ConstantPool, false);
    getMeta().sun_reflect_ConstantPool_constantPoolOop.setObject(cp, self);
    return cp;
}

Example 50 with JavaType

use of com.oracle.truffle.espresso.substitutions.JavaType in project graal by oracle.

the class VM method JVM_CurrentLoadedClass.

@VmImpl(isJni = true)
@JavaType(Class.class)
public StaticObject JVM_CurrentLoadedClass() {
    PrivilegedStack stack = getPrivilegedStack();
    StaticObject mirrorKlass = Truffle.getRuntime().iterateFrames(new FrameInstanceVisitor<StaticObject>() {

        @Override
        public StaticObject visitFrame(FrameInstance frameInstance) {
            Method m = getMethodFromFrame(frameInstance);
            if (m != null) {
                if (isTrustedFrame(frameInstance, stack)) {
                    return StaticObject.NULL;
                }
                if (!m.isNative()) {
                    ObjectKlass klass = m.getDeclaringKlass();
                    StaticObject loader = klass.getDefiningClassLoader();
                    if (StaticObject.notNull(loader) && !isTrustedLoader(loader)) {
                        return klass.mirror();
                    }
                }
            }
            return null;
        }
    });
    return mirrorKlass == null ? StaticObject.NULL : mirrorKlass;
}