Create some new standard library modules

modules/lang/src/main/kotlin/io/smnp/ext/lang/LangModule.kt

@@ -1,13 +1,13 @@
 package io.smnp.ext.lang
 
 import io.smnp.ext.NativeModuleProvider
-import io.smnp.ext.lang.function.DebugFunction
+import io.smnp.ext.lang.function.TypeOfFunction
 import io.smnp.ext.lang.method.ListAccessMethod
 import io.smnp.ext.lang.method.MapAccessMethod
 import org.pf4j.Extension
 
 @Extension
 class LangModule : NativeModuleProvider("smnp.lang") {
-    override fun functions() = listOf(DebugFunction())
+    override fun functions() = listOf(TypeOfFunction())
     override fun methods() = listOf(ListAccessMethod(), MapAccessMethod())
 }

modules/lang/src/main/kotlin/io/smnp/ext/lang/function/DebugFunction.kt

@@ -1,15 +0,0 @@
-package io.smnp.ext.lang.function
-
-import io.smnp.callable.function.Function
-import io.smnp.callable.function.FunctionDefinitionTool
-import io.smnp.callable.signature.Signature.Companion.simple
-import io.smnp.type.model.Value
-
-class DebugFunction : Function("debug") {
-    override fun define(new: FunctionDefinitionTool) {
-        new function simple() body { env, _ ->
-            env.printCallStack()
-            Value.void()
-        }
-    }
-}

modules/lang/src/main/kotlin/io/smnp/ext/lang/function/TypeOfFunction.kt

@@ -0,0 +1,15 @@
+package io.smnp.ext.lang.function
+
+import io.smnp.callable.function.Function
+import io.smnp.callable.function.FunctionDefinitionTool
+import io.smnp.callable.signature.Signature.Companion.simple
+import io.smnp.type.matcher.Matcher.Companion.allTypes
+import io.smnp.type.model.Value
+
+class TypeOfFunction : Function("typeOf") {
+   override fun define(new: FunctionDefinitionTool) {
+      new function simple(allTypes()) body { _, (obj) ->
+         Value.string(obj.type.toString()) // TODO
+      }
+   }
+}