C++ duk_push_object函数代码示例

static duk_ret_t test_is_prototype_of(duk_context *ctx, void *udata) {
	(void) udata;

	prep(ctx);

	/* obj0.isPrototypeOf(dummy) -> false, traverses prototype chain of dummy */
	duk_eval_string(ctx, "Object.prototype.isPrototypeOf");
	duk_dup(ctx, 0);
	duk_push_object(ctx);
	duk_call_method(ctx, 1);
	printf("Object.prototype.isPrototypeOf result: %s\n", duk_safe_to_string(ctx, -1));
	duk_pop(ctx);

	/* obj0.isPrototypeOf(obj1) -> true, traverses prototype chain of obj1 */
	duk_eval_string(ctx, "Object.prototype.isPrototypeOf");
	duk_dup(ctx, 0);
	duk_dup(ctx, 1);
	duk_call_method(ctx, 1);
	printf("Object.prototype.isPrototypeOf result: %s\n", duk_safe_to_string(ctx, -1));
	duk_pop(ctx);

	/* dummy.isPrototypeOf(obj0) -> traverses prototype chain of obj0 and throws */
	duk_eval_string(ctx, "Object.prototype.isPrototypeOf");
	duk_push_object(ctx);
	duk_dup(ctx, 0);
	duk_call_method(ctx, 1);
	printf("Object.prototype.isPrototypeOf result: %s\n", duk_safe_to_string(ctx, -1));
	duk_pop(ctx);

	return 0;
}

void
duk_push_sphere_bytearray(duk_context* ctx, bytearray_t* array)
{
	duk_push_object(ctx);
	duk_push_string(ctx, "bytearray"); duk_put_prop_string(ctx, -2, "\xFF" "sphere_type");
	duk_push_pointer(ctx, array); duk_put_prop_string(ctx, -2, "\xFF" "ptr");
	duk_push_c_function(ctx, js_ByteArray_finalize, DUK_VARARGS); duk_set_finalizer(ctx, -2);
	duk_push_c_function(ctx, js_ByteArray_toString, DUK_VARARGS); duk_put_prop_string(ctx, -2, "toString");
	duk_push_c_function(ctx, js_ByteArray_concat, DUK_VARARGS); duk_put_prop_string(ctx, -2, "concat");
	duk_push_c_function(ctx, js_ByteArray_slice, DUK_VARARGS); duk_put_prop_string(ctx, -2, "slice");
	duk_push_string(ctx, "length"); duk_push_int(ctx, array->size);
	duk_def_prop(ctx, -3,
		DUK_DEFPROP_HAVE_CONFIGURABLE | 0
		| DUK_DEFPROP_HAVE_WRITABLE | 0
		| DUK_DEFPROP_HAVE_VALUE);

	// return proxy object so we can catch array accesses
	duk_push_global_object(ctx);
	duk_get_prop_string(ctx, -1, "Proxy");
	duk_dup(ctx, -3);
	duk_push_object(ctx);
	duk_push_c_function(ctx, js_ByteArray_getProp, DUK_VARARGS); duk_put_prop_string(ctx, -2, "get");
	duk_push_c_function(ctx, js_ByteArray_setProp, DUK_VARARGS); duk_put_prop_string(ctx, -2, "set");
	duk_new(ctx, 2);
	duk_remove(ctx, -2);
	duk_remove(ctx, -2);
}

void Expose_Light(duk_context* ctx)
{
    duk_push_object(ctx);
    duk_put_function_list(ctx, -1, Light_StaticFunctions);
    duk_push_number(ctx, 0);
    duk_put_prop_string(ctx, -2, "PointLight");
    duk_push_number(ctx, 1);
    duk_put_prop_string(ctx, -2, "Spotlight");
    duk_push_number(ctx, 2);
    duk_put_prop_string(ctx, -2, "DirectionalLight");
    duk_push_object(ctx);
    duk_put_function_list(ctx, -1, Light_Functions);
    DefineProperty(ctx, "ComponentNameChanged", Light_Get_ComponentNameChanged, nullptr);
    DefineProperty(ctx, "ParentEntitySet", Light_Get_ParentEntitySet, nullptr);
    DefineProperty(ctx, "ParentEntityAboutToBeDetached", Light_Get_ParentEntityAboutToBeDetached, nullptr);
    DefineProperty(ctx, "typeName", Light_TypeName, nullptr);
    DefineProperty(ctx, "typeId", Light_TypeId, nullptr);
    DefineProperty(ctx, "name", Light_Name, Light_SetName_String);
    DefineProperty(ctx, "replicated", Light_IsReplicated, Light_SetReplicated_bool);
    DefineProperty(ctx, "local", Light_IsLocal, nullptr);
    DefineProperty(ctx, "unacked", Light_IsUnacked, nullptr);
    DefineProperty(ctx, "updateMode", Light_UpdateMode, Light_SetUpdateMode_AttributeChange__Type);
    DefineProperty(ctx, "id", Light_Id, nullptr);
    DefineProperty(ctx, "temporary", Light_IsTemporary, Light_SetTemporary_bool);
    DefineProperty(ctx, "viewEnabled", Light_ViewEnabled, nullptr);
    duk_put_prop_string(ctx, -2, "prototype");
    duk_put_global_string(ctx, Light_ID);
}

static void duk__push_module_object(duk_context *ctx, const char *id, duk_bool_t main) {
	duk_push_object(ctx);

	/* Set this as the main module, if requested */
	if (main) {
		duk_push_global_stash(ctx);
		duk_dup(ctx, -2);
		duk_put_prop_string(ctx, -2, "\xff" "mainModule");
		duk_pop(ctx);
	}

	/* Node.js uses the canonicalized filename of a module for both module.id
	 * and module.filename.  We have no concept of a file system here, so just
	 * use the module ID for both values.
	 */
	duk_push_string(ctx, id);
	duk_dup(ctx, -1);
	duk_put_prop_string(ctx, -3, "filename");
	duk_put_prop_string(ctx, -2, "id");

	/* module.exports = {} */
	duk_push_object(ctx);
	duk_put_prop_string(ctx, -2, "exports");

	/* module.loaded = false */
	duk_push_false(ctx);
	duk_put_prop_string(ctx, -2, "loaded");

	/* module.require */
	duk__push_require_function(ctx, id);
	duk_put_prop_string(ctx, -2, "require");
}

DUK_EXTERNAL duk_ret_t sjs_mod_init(duk_context* ctx) {
    duk_push_object(ctx);
    duk_put_function_list(ctx, -1, module_funcs);
    duk_push_object(ctx);
    duk_put_number_list(ctx, -1, module_consts);
    duk_put_prop_string(ctx, -2, "c");
    return 1;
}

duk_ret_t dukopen_nsp_texture(duk_context *ctx) {
    duk_idx_t idx = duk_push_object(ctx);
    duk_idx_t stats_constr = duk_push_c_function(ctx, nsp_texture_constructor, DUK_VARARGS);
    duk_idx_t stats_prot = duk_push_object(ctx);
    duk_put_function_list(ctx, stats_prot, nsp_texture_methods);
    duk_put_prop_string(ctx, stats_constr, "prototype");
    duk_put_prop_string(ctx, idx, "Texture");
    return 1;
}

static int init_binding_worker(duk_context *ctx) {
    duk_push_global_stash(ctx);
    duk_push_object(ctx);
    duk_put_prop_string(ctx, -2, "comoWorkersCallBack");
    duk_pop(ctx);

    duk_push_object(ctx);
    duk_put_function_list(ctx, -1, como_worker_funcs);
    return 1;
}

duk_ret_t dukopen_logger(duk_context *ctx) noexcept
{
	dukx_assert_begin(ctx);
	duk_push_object(ctx);
	duk_push_object(ctx);
	duk_put_function_list(ctx, -1, loggerFunctions);
	duk_put_prop_string(ctx, -2, "Logger");
	dukx_assert_end(ctx, 1);

	return 1;
}

int main(int argc, char *argv[]) {
	int i, rc;
	
	prg.argc = argc;
	prg.argv = argv;
	prg.name = argv[1];

	duk_context *ctx = duk_create_heap_default();

	duk_push_global_object(ctx);
	duk_push_object(ctx);  /* -> [ ... global obj ] */
	sys1(ctx);

	for(i=1;i<argc;i++) {
		duk_push_string(ctx, argv[i]);
		duk_put_prop_index(ctx, -2, i-1);
	}
	duk_push_number(ctx, argc-1);
	duk_put_prop_string(ctx, -2, "argc");

	duk_put_prop_string(ctx, -2, "Sys1");  /* -> [ ... global ] */

	duk_push_object(ctx);  /* -> [ ... global obj ] */
	prg1(ctx);
	duk_put_prop_string(ctx, -2, "Prg1");  /* -> [ ... global ] */

	prg_push_modsearch(ctx);
	
	duk_pop(ctx);

	prg_parse_appfile(&prg);
	
	// push file
	duk_push_lstring(ctx, prg.main->buf, prg.main->size);
	duk_push_string(ctx, argv[1]);
	
	// execute file (compile + call)
	prg_register(&prg);
	rc = duk_safe_call(ctx, prg_wrapped_compile_execute, 2 /*nargs*/, 1 /*nret*/);
	if (rc != DUK_EXEC_SUCCESS) {
		print_error(ctx, stderr);
		exit(2);
	}
	duk_pop(ctx);  /* pop eval result */
	
	duk_destroy_heap(ctx);

	return prg.status;
}

StyleContext::StyleContext() {
    m_ctx = duk_create_heap_default();

    //// Create global geometry constants
    // TODO make immutable
    duk_push_number(m_ctx, GeometryType::points);
    duk_put_global_string(m_ctx, "point");

    duk_push_number(m_ctx, GeometryType::lines);
    duk_put_global_string(m_ctx, "line");

    duk_push_number(m_ctx, GeometryType::polygons);
    duk_put_global_string(m_ctx, "polygon");

    //// Create global 'feature' object
    // Get Proxy constructor
    // -> [cons]
    duk_eval_string(m_ctx, "Proxy");

    // Add feature object
    // -> [cons, { __obj: this }]
    duk_idx_t featureObj = duk_push_object(m_ctx);
    duk_push_pointer(m_ctx, this);
    duk_put_prop_string(m_ctx, featureObj, INSTANCE_ID);

    // Add handler object
    // -> [cons, {...}, { get: func, has: func }]
    duk_idx_t handlerObj = duk_push_object(m_ctx);
    // Add 'get' property to handler
    duk_push_c_function(m_ctx, jsGetProperty, 3 /*nargs*/);
    duk_put_prop_string(m_ctx, handlerObj, "get");
    // Add 'has' property to handler
    duk_push_c_function(m_ctx, jsHasProperty, 2 /*nargs*/);
    duk_put_prop_string(m_ctx, handlerObj, "has");

    // Call proxy constructor
    // [cons, feature, handler ] -> [obj|error]
    if (duk_pnew(m_ctx, 2) == 0) {
        // put feature proxy object in global scope
        if (!duk_put_global_string(m_ctx, "feature")) {
            LOGE("Initialization failed");
        }
    } else {
        LOGE("Failure: %s", duk_safe_to_string(m_ctx, -1));
        duk_pop(m_ctx);
    }

    DUMP("init\n");
}

void Expose_IAssetTransfer(duk_context* ctx)
{
    duk_push_object(ctx);
    duk_push_object(ctx);
    duk_put_function_list(ctx, -1, IAssetTransfer_Functions);
    DefineProperty(ctx, "asset", IAssetTransfer_Get_asset, IAssetTransfer_Set_asset);
    DefineProperty(ctx, "source", IAssetTransfer_Get_source, IAssetTransfer_Set_source);
    DefineProperty(ctx, "assetType", IAssetTransfer_Get_assetType, IAssetTransfer_Set_assetType);
    DefineProperty(ctx, "internalResourceName", IAssetTransfer_Get_internalResourceName, IAssetTransfer_Set_internalResourceName);
    DefineProperty(ctx, "Downloaded", IAssetTransfer_Get_Downloaded, nullptr);
    DefineProperty(ctx, "Succeeded", IAssetTransfer_Get_Succeeded, nullptr);
    DefineProperty(ctx, "Failed", IAssetTransfer_Get_Failed, nullptr);
    duk_put_prop_string(ctx, -2, "prototype");
    duk_put_global_string(ctx, IAssetTransfer_ID);
}

duk_ret_t JsLibrarian::Constructor(duk_context* duktapeContext)
{
   try {
      if (duk_get_top(duktapeContext) != 0) JavaScriptHelper::Throw(duktapeContext, "No arguments for Librarian constructor expected");

      if (duk_is_constructor_call(duktapeContext)) duk_push_this(duktapeContext);
      else duk_push_object(duktapeContext);

      duk_push_pointer(duktapeContext, new JsLibrarian);
      duk_put_prop_string(duktapeContext, -2, "__Ptr");

      duk_push_c_function(duktapeContext, JsLibrarian::Destructor, 1);
      duk_set_finalizer(duktapeContext, -2);

      duk_push_c_function(duktapeContext, JsLibrarian::Files, DUK_VARARGS);
      duk_put_prop_string(duktapeContext, -2, "Files");

      duk_push_c_function(duktapeContext, JsLibrarian::DependencyCheck, DUK_VARARGS);
      duk_put_prop_string(duktapeContext, -2, "DependencyCheck");

      duk_push_c_function(duktapeContext, JsLibrarian::Output, DUK_VARARGS);
      duk_put_prop_string(duktapeContext, -2, "Output");

      duk_push_c_function(duktapeContext, JsLibrarian::BeforeLink, DUK_VARARGS);
      duk_put_prop_string(duktapeContext, -2, "BeforeLink");

      duk_push_c_function(duktapeContext, JsLibrarian::Create, DUK_VARARGS);
      duk_put_prop_string(duktapeContext, -2, "Create");

      return 1;
   }
   catch (std::exception& e) {
      JavaScriptHelper::Throw(duktapeContext, e.what());
   }
}

static duk_ret_t test(duk_context *ctx) {
	duk_push_object(ctx);                           /* [ ... obj ] */
	duk_push_int(ctx, 42);                          /* [ ... obj 42 ] */
	duk_put_prop_string(ctx, -2, "meaningOfLife");  /* [ ... obj ] */

	/* compaction has no external impact */
	duk_compact(ctx, -1);                           /* [ ... obj ] */
	duk_dup_top(ctx);
	printf("%s\n", duk_json_encode(ctx, -1));
	duk_pop(ctx);

	/* compaction doesn't prevent new properties from being added */
	duk_push_string(ctx, "bar");                    /* [ ... obj "bar" ] */
	duk_put_prop_string(ctx, -2, "foo");            /* [ ... obj ] */
	duk_dup_top(ctx);
	printf("%s\n", duk_json_encode(ctx, -1));
	duk_pop(ctx);

	/* compaction can be done multiple times */
	duk_compact(ctx, -1);                           /* [ ... obj ] */
	duk_dup_top(ctx);
	printf("%s\n", duk_json_encode(ctx, -1));
	duk_pop(ctx);
	return 0;
}

/*
 * Returns information about this pin
 */
static int NativeInfoGetter(duk_context* ctx)
{
    int idx;
    uint32_t pin;
    const AJS_IO_Info* info;

    duk_push_this(ctx);
    pin = GetPinId(ctx, -1, 0);
    duk_pop(ctx);

    info = AJS_TargetIO_GetInfo(pin);
    if (!info) {
        duk_error(ctx, DUK_ERR_INTERNAL_ERROR, "Undefined I/O pin%d", pin);
        return 0;
    }
    duk_push_string(ctx, ", ");

    idx = duk_push_object(ctx);
    duk_push_int(ctx, info->physicalPin);
    duk_put_prop_string(ctx, idx, "physicalPin");
    duk_push_string(ctx, info->schematicId);
    duk_put_prop_string(ctx, idx, "schematicId");
    duk_push_string(ctx, info->datasheetId);
    duk_put_prop_string(ctx, idx, "datasheetId");
    duk_push_string(ctx, info->description);
    duk_put_prop_string(ctx, idx, "description");
    /*
     * Return the object we just created
     */
    return 1;
}

static duk_ret_t test_string(duk_context *ctx, void *udata) {
	duk_idx_t i, n;

	(void) udata;

	duk_push_undefined(ctx);
	duk_push_null(ctx);
	duk_push_true(ctx);
	duk_push_false(ctx);
	duk_push_string(ctx, "");
	duk_push_string(ctx, "foo");
	duk_push_lstring(ctx, "foo\0bar", 7);
	duk_push_string(ctx, "\xe1\x88\xb4xyz");  /* 4 chars, first char utf-8 encoded U+1234 */
	duk_push_nan(ctx);
	duk_push_object(ctx);

	n = duk_get_top(ctx);
	printf("top: %ld\n", (long) n);
	for (i = 0; i <= n; i++) {
		printf("index %ld: ", (long) i);
		dump((const unsigned char *) duk_get_string_default(ctx, i, "default"));
	}

	return 0;
}