Package jnr.ffi.mapper

Examples of jnr.ffi.mapper.ToNativeConverter

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        }
        mv.label(done);
    }

    static void emitToNativeConversion(AsmBuilder builder, SkinnyMethodAdapter mv, ToNativeType toNativeType) {
        ToNativeConverter parameterConverter = toNativeType.toNativeConverter;
        if (parameterConverter != null) {
            Method toNativeMethod = getToNativeMethod(toNativeType, builder.getClassLoader());

            if (toNativeType.getDeclaredType().isPrimitive()) {
                boxValue(builder, mv, getBoxedClass(toNativeType.getDeclaredType()), toNativeType.getDeclaredType());
            }
            if (!toNativeMethod.getParameterTypes()[0].isAssignableFrom(getBoxedClass(toNativeType.getDeclaredType()))) {
                mv.checkcast(toNativeMethod.getParameterTypes()[0]);
            }

            mv.aload(0);
            AsmBuilder.ObjectField toNativeConverterField = builder.getToNativeConverterField(parameterConverter);
            mv.getfield(builder.getClassNamePath(), toNativeConverterField.name, ci(toNativeConverterField.klass));
            if (!toNativeMethod.getDeclaringClass().equals(toNativeConverterField.klass)) {
                mv.checkcast(toNativeMethod.getDeclaringClass());
            }

            // Re-order so the value to be converted is on the top of the stack
            mv.swap();

            // load context parameter (if there is one)
            if (toNativeType.toNativeContext != null) {
                getfield(mv, builder, builder.getToNativeContextField(toNativeType.toNativeContext));
            } else {
                mv.aconst_null();
            }

            if (toNativeMethod.getDeclaringClass().isInterface()) {
                mv.invokeinterface(toNativeMethod.getDeclaringClass(), toNativeMethod.getName(),
                        toNativeMethod.getReturnType(), toNativeMethod.getParameterTypes());
            } else {
                mv.invokevirtual(toNativeMethod.getDeclaringClass(), toNativeMethod.getName(),
                        toNativeMethod.getReturnType(), toNativeMethod.getParameterTypes());
            }
            if (!parameterConverter.nativeType().isAssignableFrom(toNativeMethod.getReturnType())) {
                mv.checkcast(p(parameterConverter.nativeType()));
            }
        }
    }
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        }
    }

    static Method getToNativeMethod(ToNativeType toNativeType, AsmClassLoader classLoader) {
        ToNativeConverter toNativeConverter = toNativeType.toNativeConverter;
        if (toNativeConverter == null) {
            return null;
        }

        try {
            Class<? extends ToNativeConverter> toNativeConverterClass = toNativeConverter.getClass();
            if (Modifier.isPublic(toNativeConverterClass.getModifiers())) {
                for (Method method : toNativeConverterClass.getMethods()) {
                    if (!method.getName().equals("toNative")) continue;
                    Class[] methodParameterTypes = method.getParameterTypes();
                    if (toNativeConverter.nativeType().isAssignableFrom(method.getReturnType())
                            && methodParameterTypes.length == 2
                            && methodParameterTypes[0].isAssignableFrom(toNativeType.getDeclaredType())
                            && methodParameterTypes[1] == ToNativeContext.class
                            && methodIsAccessible(method)
                            && classIsVisible(classLoader, method.getDeclaringClass())) {
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        if (!isReturnTypeSupported(resultType.effectiveJavaType())) {
            throw new IllegalArgumentException("unsupported closure return type " + resultType.getDeclaredType());
        }


        ToNativeConverter toNativeConverter = resultType.toNativeConverter;
        if (toNativeConverter != null) {

            mv.aload(0);
            mv.getfield(builder.getClassNamePath(), builder.getToNativeConverterName(toNativeConverter), ci(ToNativeConverter.class));
            mv.swap();
            if (resultType.getDeclaredType().isPrimitive()) {
                boxValue(mv, getBoxedClass(resultType.getDeclaredType()), resultType.getDeclaredType());
            }
            mv.aconst_null();
            mv.invokeinterface(ToNativeConverter.class, "toNative",
                    Object.class, Object.class, ToNativeContext.class);
            mv.checkcast(p(toNativeConverter.nativeType()));
        }



        if (!resultType.effectiveJavaType().isPrimitive()) {
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    private ClosureUtil() {
    }

    static ToNativeType getResultType(NativeRuntime runtime, Method m, TypeMapper typeMapper) {
        Annotation[] annotations = m.getAnnotations();
        ToNativeConverter converter = getToNativeConverter(m.getReturnType(), annotations, typeMapper);
        Class javaClass = converter != null ? converter.nativeType() : m.getReturnType();
        NativeType nativeType = InvokerUtil.getNativeType(runtime, javaClass, annotations);
        return new ToNativeType(m.getReturnType(), nativeType, annotations, converter);
    }
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        NativeType nativeType = InvokerUtil.getNativeType(runtime, javaClass, annotations);
        return new FromNativeType(declaredJavaClass, nativeType, annotations, converter);
    }

    static com.kenai.jffi.Type getNativeResultType(NativeRuntime runtime, Method m, TypeMapper typeMapper) {
        ToNativeConverter converter = getToNativeConverter(m.getReturnType(), m.getAnnotations(), typeMapper);
        Class javaClass = converter != null ? converter.nativeType() : m.getReturnType();
        return jffiType(InvokerUtil.getNativeType(runtime, m.getReturnType(), m.getAnnotations()));
    }
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        }
    }

    @SuppressWarnings("unchecked")
    static ToNativeConverter getToNativeConverter(Class javaClass, Annotation[] annotations, TypeMapper typeMapper) {
        ToNativeConverter conv = typeMapper.getToNativeConverter(javaClass);
        if (conv != null) {
            return conv;

        } else if (Enum.class.isAssignableFrom(javaClass)) {
            return EnumMapper.getInstance(javaClass.asSubclass(Enum.class));
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            final int parameterFlags = AsmUtil.getParameterFlags(parameterTypes[i].annotations);
            final int nativeArrayFlags = AsmUtil.getNativeArrayFlags(parameterFlags)
                        | ((parameterFlags & ParameterFlags.IN) != 0 ? ArrayFlags.NULTERMINATE : 0);

            ToNativeConverter parameterConverter = parameterTypes[i].toNativeConverter;
            final Class javaParameterType = parameterConverter != null
                    ? parameterConverter.nativeType() : parameterTypes[i].getDeclaredType();

            if (javaParameterType.isArray() && javaParameterType.getComponentType().isPrimitive()) {
                mv.pushInt(nativeArrayFlags);

                if (isLong32(javaParameterType.getComponentType(), parameterTypes[i].annotations)) {
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        }
        mv.label(done);
    }

    static void emitToNativeConversion(AsmBuilder builder, SkinnyMethodAdapter mv, ToNativeType toNativeType) {
        ToNativeConverter parameterConverter = toNativeType.getToNativeConverter();
        if (parameterConverter != null) {
            Method toNativeMethod = getToNativeMethod(toNativeType, builder.getClassLoader());

            if (toNativeType.getDeclaredType().isPrimitive()) {
                boxValue(builder, mv, getBoxedClass(toNativeType.getDeclaredType()), toNativeType.getDeclaredType());
            }
            if (!toNativeMethod.getParameterTypes()[0].isAssignableFrom(getBoxedClass(toNativeType.getDeclaredType()))) {
                mv.checkcast(toNativeMethod.getParameterTypes()[0]);
            }

            mv.aload(0);
            AsmBuilder.ObjectField toNativeConverterField = builder.getToNativeConverterField(parameterConverter);
            mv.getfield(builder.getClassNamePath(), toNativeConverterField.name, ci(toNativeConverterField.klass));
            if (!toNativeMethod.getDeclaringClass().equals(toNativeConverterField.klass)) {
                mv.checkcast(toNativeMethod.getDeclaringClass());
            }

            // Re-order so the value to be converted is on the top of the stack
            mv.swap();

            // load context parameter (if there is one)
            if (toNativeType.getToNativeContext() != null) {
                getfield(mv, builder, builder.getToNativeContextField(toNativeType.getToNativeContext()));
            } else {
                mv.aconst_null();
            }

            if (toNativeMethod.getDeclaringClass().isInterface()) {
                mv.invokeinterface(toNativeMethod.getDeclaringClass(), toNativeMethod.getName(),
                        toNativeMethod.getReturnType(), toNativeMethod.getParameterTypes());
            } else {
                mv.invokevirtual(toNativeMethod.getDeclaringClass(), toNativeMethod.getName(),
                        toNativeMethod.getReturnType(), toNativeMethod.getParameterTypes());
            }
            if (!parameterConverter.nativeType().isAssignableFrom(toNativeMethod.getReturnType())) {
                mv.checkcast(p(parameterConverter.nativeType()));
            }
        }
    }
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        }
    }

    static Method getToNativeMethod(ToNativeType toNativeType, AsmClassLoader classLoader) {
        ToNativeConverter toNativeConverter = toNativeType.getToNativeConverter();
        if (toNativeConverter == null) {
            return null;
        }

        try {
            Class<? extends ToNativeConverter> toNativeConverterClass = toNativeConverter.getClass();
            if (Modifier.isPublic(toNativeConverterClass.getModifiers())) {
                for (Method method : toNativeConverterClass.getMethods()) {
                    if (!method.getName().equals("toNative")) continue;
                    Class[] methodParameterTypes = method.getParameterTypes();
                    if (toNativeConverter.nativeType().isAssignableFrom(method.getReturnType())
                            && methodParameterTypes.length == 2
                            && methodParameterTypes[0].isAssignableFrom(toNativeType.getDeclaredType())
                            && methodParameterTypes[1] == ToNativeContext.class
                            && methodIsAccessible(method)
                            && classIsVisible(classLoader, method.getDeclaringClass())) {
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Related Classes of jnr.ffi.mapper.ToNativeConverter

  • jnr.ffi.provider.jffi.AsmUtil
  • jnr.ffi.provider.jffi.BufferMethodGenerator
  • jnr.ffi.provider.jffi.ClosureUtil
  • jnr.ffi.provider.jffi.NativeClosureProxy
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