Add more complex tests cases for callbacks.

Author: viferga

source/ports/node_port/source/node_port.cpp

@@ -730,7 +730,7 @@ napi_value metacall_node_call(napi_env env, napi_callback_info info)
 
 	metacall_node_exception(env, status);
 
-	for (size_t i = 1; i < argc; i++)
+	for (size_t i = 1; i < argc; ++i)
 	{
 		args[i - 1] = metacall_node_napi_to_value(env, recv, argv[i]);
 	}

source/ports/node_port/test/index.js

@@ -135,6 +135,13 @@ describe('metacall', () => {
 
 			// Currying more
 			assert.strictEqual(f.function_currying_more(5)(4)(3)(2)(1), 120);
+
+			// Factorial composition (@trgwii)
+			/*
+			const factorial = f.function_factorial_compose(f.function_factorial);
+			assert.notStrictEqual(factorial, undefined);
+			assert.strictEqual(factorial(5), 120);
+			*/
 		});
 	});
 });

source/scripts/python/function/source/function.py

@@ -24,3 +24,9 @@ def function_currying(y):
 
 def function_currying_more(y):
 	return lambda x: lambda z: lambda w: lambda n: x * z * w * n * y
+
+def function_factorial_compose(x):
+	return lambda n: x(x)(n)
+
+def function_factorial(x):
+	return lambda n: 1 if n == 0 else n * x(x)(n - 1)