Implement some new stdlib functions and methods

api/src/main/kotlin/io/smnp/ext/HybridModuleProvider.kt

@@ -0,0 +1,45 @@
+package io.smnp.ext
+
+import io.smnp.callable.function.Function
+import io.smnp.callable.method.Method
+import io.smnp.interpreter.LanguageModuleInterpreter
+import io.smnp.type.module.Module
+
+abstract class HybridModuleProvider(path: String) : ModuleProvider(path) {
+   open fun functions(): List<Function> = emptyList()
+   open fun methods(): List<Method> = emptyList()
+   open fun files() = listOf("main.mus")
+
+   override fun provideModule(interpreter: LanguageModuleInterpreter): Module {
+      return provideNativeModule(interpreter).merge(provideLanguageModule(interpreter))
+   }
+
+   private fun provideNativeModule(interpreter: LanguageModuleInterpreter): Module {
+      return object : NativeModuleProvider(path) {
+         override fun functions() = this@HybridModuleProvider.functions()
+         override fun methods() = this@HybridModuleProvider.methods()
+      }.provideModule(interpreter)
+   }
+
+   // Disclaimer:
+   // Unfortunately, LanguageModuleProvider cannot be reused here because
+   // getResource() method returns null if is invoked from anonymous class's object instance.
+   // Therefore it is need to have following code here.
+   private fun provideLanguageModule(interpreter: LanguageModuleInterpreter): Module {
+      val segments = path.split(".")
+      val parentNodesChainPath = segments.dropLast(1).joinToString(".")
+      val moduleName = segments.last()
+
+      val module = files()
+         .asSequence()
+         .map { it to javaClass.classLoader.getResource(it) }
+         .map { it.first to (it.second?.readText() ?: throw RuntimeException("Module '$path' does not contain '${it.first}' file")) }
+         .map { interpreter.run(it.second, "module $path::${it.first}") }
+         .map { it.getRootModule() }
+         .reduce { acc, module -> acc.merge(module) }
+
+      module.name = moduleName
+
+      return Module.create(parentNodesChainPath, children = listOf(module))
+   }
+}