fix tojson ensure_ascii

Author: ochafik

include/minja/minja.hpp

@@ -2736,7 +2736,7 @@ inline std::shared_ptr<Context> Context::builtins() {
   globals.set("raise_exception", simple_function("raise_exception", { "message" }, [](const std::shared_ptr<Context> &, Value & args) -> Value {
     throw std::runtime_error(args.at("message").get<std::string>());
   }));
-  globals.set("tojson", simple_function("tojson", { "value", "indent" }, [](const std::shared_ptr<Context> &, Value & args) {
+  globals.set("tojson", simple_function("tojson", { "value", "indent", "ensure_ascii" }, [](const std::shared_ptr<Context> &, Value & args) {
     return Value(args.at("value").dump(args.get<int64_t>("indent", -1), /* to_json= */ true));
   }));
   globals.set("items", simple_function("items", { "object" }, [](const std::shared_ptr<Context> &, Value & args) {

scripts/fetch_templates_and_goldens.py

@@ -50,6 +50,8 @@ def strftime_now(format):
     now = datetime.datetime.strptime(TEST_DATE, "%Y-%m-%d")
     return now.strftime(format)
 
+def tojson(value, indent=None, ensure_ascii=False, sort_keys=False):
+    return json.dumps(value, indent=indent, ensure_ascii=ensure_ascii, sort_keys=sort_keys)
 
 def join_cmake_path(parent, child):
     '''
@@ -119,8 +121,11 @@ def __init__(self, template, env=None, filters=None, global_functions=None):
             env = jinja2.Environment(
                 trim_blocks=True,
                 lstrip_blocks=True,
-                extensions=[jinja2.ext.loopcontrols]
+                extensions=[jinja2.ext.loopcontrols],
             )
+            # https://jinja.palletsprojects.com/en/stable/api/#policies
+            env.policies["json.dumps_function"] = tojson
+            env.filters['tojson'] = tojson
         if filters:
             for name, func in filters.items():
                 env.filters[name] = func