Examples with Meta com.oracle.truffle.espresso.meta.Meta used on opensource projects

Example 46 with Meta

use of com.oracle.truffle.espresso.meta.Meta in project graal by oracle.

the class ToEspressoNode method doForeignArray.

@Specialization(guards = { "!isStaticObject(value)", "!interop.isNull(value)" })
Object doForeignArray(Object value, ArrayKlass klass, @CachedLibrary(limit = "LIMIT") InteropLibrary interop, @Cached BranchProfile errorProfile) throws UnsupportedTypeException {
    Meta meta = EspressoContext.get(this).getMeta();
    // Array-like can be casted to *[].
    if ((klass == meta._byte_array && interop.hasBufferElements(value)) || interop.hasArrayElements(value)) {
        return StaticObject.createForeign(EspressoLanguage.get(this), klass, value, interop);
    }
    errorProfile.enter();
    throw UnsupportedTypeException.create(new Object[] { value }, "Cannot cast a non-array value to an array type");
}

Example 47 with Meta

use of com.oracle.truffle.espresso.meta.Meta in project graal by oracle.

the class CheckCastQuickNode method execute.

@Override
public int execute(VirtualFrame frame) {
    BytecodeNode root = getBytecodeNode();
    StaticObject receiver = BytecodeNode.peekObject(frame, top - 1);
    if (StaticObject.isNull(receiver) || instanceOf.execute(receiver.getKlass())) {
        return stackEffectOf_CHECKCAST;
    }
    root.enterImplicitExceptionProfile();
    BytecodeNode.popObject(frame, top - 1);
    Meta meta = typeToCheck.getMeta();
    throw meta.throwExceptionWithMessage(meta.java_lang_ClassCastException, getExceptionMessage(root, receiver));
}

Example 48 with Meta

use of com.oracle.truffle.espresso.meta.Meta in project graal by oracle.

the class VM method JVM_GetStackTraceDepth.

@VmImpl(isJni = true)
public int JVM_GetStackTraceDepth(@JavaType(Throwable.class) StaticObject self) {
    Meta meta = getMeta();
    StackTrace frames = EspressoException.getFrames(self, meta);
    if (frames == null) {
        return 0;
    }
    return frames.size;
}

Example 49 with Meta

use of com.oracle.truffle.espresso.meta.Meta in project graal by oracle.

the class VM method JVM_GetClassDeclaredFields.

@VmImpl(isJni = true)
@JavaType(java.lang.reflect.Field[].class)
public StaticObject JVM_GetClassDeclaredFields(@JavaType(Class.class) StaticObject self, boolean publicOnly) {
    // TODO(peterssen): From Hostpot: 4496456 We need to filter out
    // java.lang.Throwable.backtrace.
    Meta meta = getMeta();
    ArrayList<Field> collectedMethods = new ArrayList<>();
    Klass klass = self.getMirrorKlass();
    klass.ensureLinked();
    for (Field f : klass.getDeclaredFields()) {
        if (!publicOnly || f.isPublic()) {
            collectedMethods.add(f);
        }
    }
    final Field[] fields = collectedMethods.toArray(Field.EMPTY_ARRAY);
    EspressoContext context = meta.getContext();
    // TODO(peterssen): Cache guest j.l.reflect.Field constructor.
    // Calling the constructor is just for validation, manually setting the fields would be
    // faster.
    Method fieldInit;
    if (meta.getJavaVersion().java15OrLater()) {
        fieldInit = meta.java_lang_reflect_Field.lookupDeclaredMethod(Name._init_, context.getSignatures().makeRaw(Type._void, /* declaringClass */
        Type.java_lang_Class, /* name */
        Type.java_lang_String, /* type */
        Type.java_lang_Class, /* modifiers */
        Type._int, /* trustedFinal */
        Type._boolean, /* slot */
        Type._int, /* signature */
        Type.java_lang_String, /* annotations */
        Type._byte_array));
    } else {
        fieldInit = meta.java_lang_reflect_Field.lookupDeclaredMethod(Name._init_, context.getSignatures().makeRaw(Type._void, /* declaringClass */
        Type.java_lang_Class, /* name */
        Type.java_lang_String, /* type */
        Type.java_lang_Class, /* modifiers */
        Type._int, /* slot */
        Type._int, /* signature */
        Type.java_lang_String, /* annotations */
        Type._byte_array));
    }
    StaticObject fieldsArray = meta.java_lang_reflect_Field.allocateReferenceArray(fields.length, new IntFunction<StaticObject>() {

        @Override
        public StaticObject apply(int i) {
            final Field f = fields[i];
            StaticObject instance = meta.java_lang_reflect_Field.allocateInstance();
            Attribute rawRuntimeVisibleAnnotations = f.getAttribute(Name.RuntimeVisibleAnnotations);
            StaticObject runtimeVisibleAnnotations = rawRuntimeVisibleAnnotations != null ? StaticObject.wrap(rawRuntimeVisibleAnnotations.getData(), meta) : StaticObject.NULL;
            Attribute rawRuntimeVisibleTypeAnnotations = f.getAttribute(Name.RuntimeVisibleTypeAnnotations);
            StaticObject runtimeVisibleTypeAnnotations = rawRuntimeVisibleTypeAnnotations != null ? StaticObject.wrap(rawRuntimeVisibleTypeAnnotations.getData(), meta) : StaticObject.NULL;
            if (meta.getJavaVersion().java15OrLater()) {
                fieldInit.invokeDirect(/* this */
                instance, /* declaringKlass */
                f.getDeclaringKlass().mirror(), /* name */
                context.getStrings().intern(f.getName()), /* type */
                f.resolveTypeKlass().mirror(), /* modifiers */
                f.getModifiers(), /* trustedFinal */
                f.isTrustedFinal(), /* slot */
                f.getSlot(), /* signature */
                meta.toGuestString(f.getGenericSignature()), /* annotations */
                runtimeVisibleAnnotations);
            } else {
                fieldInit.invokeDirect(/* this */
                instance, /* declaringKlass */
                f.getDeclaringKlass().mirror(), /* name */
                context.getStrings().intern(f.getName()), /* type */
                f.resolveTypeKlass().mirror(), /* modifiers */
                f.getModifiers(), /* slot */
                f.getSlot(), /* signature */
                meta.toGuestString(f.getGenericSignature()), /* annotations */
                runtimeVisibleAnnotations);
            }
            meta.HIDDEN_FIELD_KEY.setHiddenObject(instance, f);
            meta.HIDDEN_FIELD_RUNTIME_VISIBLE_TYPE_ANNOTATIONS.setHiddenObject(instance, runtimeVisibleTypeAnnotations);
            return instance;
        }
    });
    return fieldsArray;
}

Example 50 with Meta

use of com.oracle.truffle.espresso.meta.Meta in project graal by oracle.

the class VM method JVM_GetEnclosingMethodInfo.

@VmImpl(isJni = true)
@JavaType(Object[].class)
public StaticObject JVM_GetEnclosingMethodInfo(@JavaType(Class.class) StaticObject self) {
    Meta meta = getMeta();
    InterpreterToVM vm = meta.getInterpreterToVM();
    if (self.getMirrorKlass() instanceof ObjectKlass) {
        ObjectKlass klass = (ObjectKlass) self.getMirrorKlass();
        EnclosingMethodAttribute enclosingMethodAttr = klass.getEnclosingMethod();
        if (enclosingMethodAttr == null) {
            return StaticObject.NULL;
        }
        int classIndex = enclosingMethodAttr.getClassIndex();
        if (classIndex == 0) {
            return StaticObject.NULL;
        }
        StaticObject arr = meta.java_lang_Object.allocateReferenceArray(3);
        RuntimeConstantPool pool = klass.getConstantPool();
        Klass enclosingKlass = pool.resolvedKlassAt(klass, classIndex);
        vm.setArrayObject(enclosingKlass.mirror(), 0, arr);
        int methodIndex = enclosingMethodAttr.getMethodIndex();
        if (methodIndex != 0) {
            NameAndTypeConstant nmt = pool.nameAndTypeAt(methodIndex);
            StaticObject name = meta.toGuestString(nmt.getName(pool));
            StaticObject desc = meta.toGuestString(nmt.getDescriptor(pool));
            vm.setArrayObject(name, 1, arr);
            vm.setArrayObject(desc, 2, arr);
        }
        return arr;
    }
    return StaticObject.NULL;
}