jinja : attribute support for join, map and sort (#18883)
* support negative array index and default value * attribute support (int and str) for join, map and sort * add tests * update CODEOWNERS * improve fixme sorting comment
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4 changed files with 144 additions and 38 deletions
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@ -776,19 +776,30 @@ const func_builtins & value_array_t::get_builtins() const {
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if (!is_val<value_array>(args.get_pos(0))) {
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throw raised_exception("join() first argument must be an array");
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}
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value val_delim = args.get_kwarg_or_pos("d", 1);
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value val_attribute = args.get_kwarg_or_pos("attribute", 2);
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if (!val_attribute->is_undefined()) {
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throw not_implemented_exception("array attribute join not implemented");
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}
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value val_delim = args.get_kwarg_or_pos("d", 1);
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value attribute = args.get_kwarg_or_pos("attribute", 2);
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const auto & arr = args.get_pos(0)->as_array();
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std::string delim = is_val<value_string>(val_delim) ? val_delim->as_string().str() : "";
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const bool attr_is_int = is_val<value_int>(attribute);
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if (!attribute->is_undefined() && !is_val<value_string>(attribute) && !attr_is_int) {
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throw raised_exception("join() attribute must be string or integer");
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}
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const int64_t attr_int = attr_is_int ? attribute->as_int() : 0;
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const std::string delim = val_delim->is_undefined() ? "" : val_delim->as_string().str();
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const std::string attr_name = attribute->is_undefined() ? "" : attribute->as_string().str();
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std::string result;
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for (size_t i = 0; i < arr.size(); ++i) {
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if (!is_val<value_string>(arr[i]) && !is_val<value_int>(arr[i]) && !is_val<value_float>(arr[i])) {
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value val_arr = arr[i];
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if (!attribute->is_undefined()) {
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if (attr_is_int && is_val<value_array>(val_arr)) {
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val_arr = val_arr->at(attr_int);
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} else if (!attr_is_int && !attr_name.empty() && is_val<value_object>(val_arr)) {
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val_arr = val_arr->at(attr_name);
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}
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}
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if (!is_val<value_string>(val_arr) && !is_val<value_int>(val_arr) && !is_val<value_float>(val_arr)) {
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throw raised_exception("join() can only join arrays of strings or numerics");
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}
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result += arr[i]->as_string().str();
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result += val_arr->as_string().str();
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if (i < arr.size() - 1) {
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result += delim;
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}
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@ -803,26 +814,30 @@ const func_builtins & value_array_t::get_builtins() const {
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}},
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{"tojson", tojson},
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{"map", [](const func_args & args) -> value {
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args.ensure_count(2, 3);
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args.ensure_count(2);
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if (!is_val<value_array>(args.get_pos(0))) {
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throw raised_exception("map: first argument must be an array");
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}
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value attribute = args.get_kwarg_or_pos("attribute", 1);
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if (is_val<value_int>(attribute)) {
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throw not_implemented_exception("map: integer attribute not implemented");
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if (!is_val<value_kwarg>(args.get_args().at(1))) {
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throw not_implemented_exception("map: filter-mapping not implemented");
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}
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if (!is_val<value_string>(attribute)) {
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value attribute = args.get_kwarg_or_pos("attribute", 1);
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const bool attr_is_int = is_val<value_int>(attribute);
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if (!is_val<value_string>(attribute) && !attr_is_int) {
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throw raised_exception("map: attribute must be string or integer");
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}
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std::string attr_name = attribute->as_string().str();
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const int64_t attr_int = attr_is_int ? attribute->as_int() : 0;
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const std::string attr_name = attribute->as_string().str();
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value default_val = args.get_kwarg("default", mk_val<value_undefined>());
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auto out = mk_val<value_array>();
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auto arr = args.get_pos(0)->as_array();
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for (const auto & item : arr) {
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if (!is_val<value_object>(item)) {
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throw raised_exception("map: item is not an object");
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value attr_val;
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if (attr_is_int) {
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attr_val = is_val<value_array>(item) ? item->at(attr_int, default_val) : default_val;
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} else {
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attr_val = is_val<value_object>(item) ? item->at(attr_name, default_val) : default_val;
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}
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value attr_val = item->at(attr_name, default_val);
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out->push_back(attr_val);
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}
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return out;
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@ -848,29 +863,35 @@ const func_builtins & value_array_t::get_builtins() const {
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return arr_editable->pop_at(index);
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}},
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{"sort", [](const func_args & args) -> value {
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args.ensure_count(1, 3);
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args.ensure_count(1, 4);
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if (!is_val<value_array>(args.get_pos(0))) {
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throw raised_exception("sort: first argument must be an array");
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}
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bool reverse = args.get_kwarg("reverse", mk_val<value_undefined>())->as_bool();
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value attribute = args.get_kwarg("attribute", mk_val<value_undefined>());
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std::string attr = attribute->is_undefined() ? "" : attribute->as_string().str();
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value val_reverse = args.get_kwarg_or_pos("reverse", 1);
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value val_case = args.get_kwarg_or_pos("case_sensitive", 2);
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value attribute = args.get_kwarg_or_pos("attribute", 3);
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// FIXME: sorting is currently always case sensitive
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//const bool case_sensitive = val_case->as_bool(); // undefined == false
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const bool reverse = val_reverse->as_bool(); // undefined == false
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const bool attr_is_int = is_val<value_int>(attribute);
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const int64_t attr_int = attr_is_int ? attribute->as_int() : 0;
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const std::string attr_name = attribute->is_undefined() ? "" : attribute->as_string().str();
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std::vector<value> arr = cast_val<value_array>(args.get_pos(0))->as_array(); // copy
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std::sort(arr.begin(), arr.end(),[&](const value & a, const value & b) {
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value val_a = a;
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value val_b = b;
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if (!attribute->is_undefined()) {
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if (!is_val<value_object>(a) || !is_val<value_object>(b)) {
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throw raised_exception("sort: items are not objects");
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if (attr_is_int && is_val<value_array>(a) && is_val<value_array>(b)) {
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val_a = a->at(attr_int);
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val_b = b->at(attr_int);
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} else if (!attr_is_int && !attr_name.empty() && is_val<value_object>(a) && is_val<value_object>(b)) {
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val_a = a->at(attr_name);
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val_b = b->at(attr_name);
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} else {
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throw raised_exception("sort: unsupported object attribute comparison");
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}
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val_a = attr.empty() ? a : a->at(attr);
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val_b = attr.empty() ? b : b->at(attr);
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}
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if (reverse) {
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return value_compare(val_a, val_b, value_compare_op::gt);
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} else {
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return !value_compare(val_a, val_b, value_compare_op::gt);
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}
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return value_compare(val_a, val_b, reverse ? value_compare_op::gt : value_compare_op::lt);
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});
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return mk_val<value_array>(arr);
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}},
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@ -964,7 +985,7 @@ const func_builtins & value_object_t::get_builtins() const {
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value val_case = args.get_kwarg_or_pos("case_sensitive", 1);
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value val_by = args.get_kwarg_or_pos("by", 2);
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value val_reverse = args.get_kwarg_or_pos("reverse", 3);
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// FIXME: sorting is case sensitive
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// FIXME: sorting is currently always case sensitive
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//const bool case_sensitive = val_case->as_bool(); // undefined == false
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const bool reverse = val_reverse->as_bool(); // undefined == false
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if (!val_by->is_undefined()) {
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@ -168,8 +168,20 @@ struct value_t {
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}
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return val_obj.unordered.at(key);
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}
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virtual value & at(size_t index) {
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if (index >= val_arr.size()) {
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virtual value & at(int64_t index, value & default_val) {
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if (index < 0) {
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index += val_arr.size();
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}
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if (index < 0 || static_cast<size_t>(index) >= val_arr.size()) {
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return default_val;
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}
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return val_arr[index];
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}
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virtual value & at(int64_t index) {
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if (index < 0) {
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index += val_arr.size();
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}
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if (index < 0 || static_cast<size_t>(index) >= val_arr.size()) {
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throw std::runtime_error("Index " + std::to_string(index) + " out of bounds for array of size " + std::to_string(val_arr.size()));
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}
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return val_arr[index];
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