add test for nested functions
diff --git a/include/inja/parser.hpp b/include/inja/parser.hpp
index b22e04d..f75c5bd 100644
--- a/include/inja/parser.hpp
+++ b/include/inja/parser.hpp
@@ -288,10 +288,13 @@
func->callback = function_data.callback;
}
- function_stack.pop();
-
+ if (operator_stack.empty()) {
+ throw_parser_error("internal error at function " + func->name);
+ }
+
current_expression_list->rpn_output.emplace_back(operator_stack.top());
operator_stack.pop();
+ function_stack.pop();
}
}
default:
diff --git a/single_include/inja/inja.hpp b/single_include/inja/inja.hpp
index 45595d0..9919003 100644
--- a/single_include/inja/inja.hpp
+++ b/single_include/inja/inja.hpp
@@ -3000,10 +3000,13 @@
func->callback = function_data.callback;
}
- function_stack.pop();
-
+ if (operator_stack.empty()) {
+ throw_parser_error("internal error at function " + func->name);
+ }
+
current_expression_list->rpn_output.emplace_back(operator_stack.top());
operator_stack.pop();
+ function_stack.pop();
}
}
default:
diff --git a/test/test-functions.cpp b/test/test-functions.cpp
index d339e4c..d233789 100644
--- a/test/test-functions.cpp
+++ b/test/test-functions.cpp
@@ -223,6 +223,11 @@
return number1 * number2 * number3;
});
+ env.add_callback("length", 1, [](inja::Arguments args) {
+ auto number1 = args.at(0)->get<std::string>();
+ return number1.length();
+ });
+
env.add_callback("multiply", 0, [](inja::Arguments args) { return 1.0; });
CHECK(env.render("{{ double(age) }}", data) == "56");
@@ -230,6 +235,8 @@
CHECK(env.render("{{ double-greetings }}", data) == "Hello Hello!");
CHECK(env.render("{{ double-greetings() }}", data) == "Hello Hello!");
CHECK(env.render("{{ multiply(4, 5) }}", data) == "20.0");
+ CHECK(env.render("{{ multiply(length(\"tester\"), 5) }}", data) == "30.0");
+ CHECK(env.render("{{ multiply(5, length(\"t\")) }}", data) == "5.0");
CHECK(env.render("{{ multiply(3, 4, 5) }}", data) == "60.0");
CHECK(env.render("{{ multiply }}", data) == "1.0");
@@ -268,6 +275,7 @@
CHECK(env.render("{{ last(list_of_objects).d * 2}}", data) == "10");
CHECK(env.render("{{ last(range(5)) * 2 }}", data) == "8");
CHECK(env.render("{{ last(range(5 * 2)) }}", data) == "9");
+ CHECK(env.render("{{ last(range(5 * 2)) }}", data) == "9");
CHECK(env.render("{{ not true }}", data) == "false");
CHECK(env.render("{{ not (true) }}", data) == "false");
CHECK(env.render("{{ true or (true or true) }}", data) == "true");