[oden] Graphics is a module now

src/main.js

@@ -1,6 +1,7 @@
+import * as graphics from 'graphics';
+
 function init() {
   graphics.print("Hello world!");
-  // console.log("Hello world!");
 }
 
 function update() {}

src/script.rs

@@ -1,8 +1,14 @@
-use oden_js::{Class, ClassID, Context, ContextRef, Runtime, Value, ValueRef, ValueResult};
+use oden_js::{module, Context, ContextRef, Runtime, Value, ValueRef, ValueResult};
 
 pub struct GraphicsAPI {}
 
 impl GraphicsAPI {
+    fn define(ctx: &ContextRef) -> oden_js::Result<()> {
+        module::NativeModuleBuilder::new(ctx)
+            .export("print", ctx.new_dynamic_fn(Self::print_fn)?)?
+            .build("graphics")
+    }
+
     fn print_fn(ctx: &ContextRef, _this: &ValueRef, args: &[&ValueRef]) -> ValueResult {
         for arg in args {
             print!("{}", arg.to_string(ctx)?);
@@ -12,22 +18,6 @@ impl GraphicsAPI {
     }
 }
 
-impl Class for GraphicsAPI {
-    fn class_id() -> &'static ClassID {
-        static ID: ClassID = ClassID::new("GraphicsAPI");
-        &ID
-    }
-
-    fn prototype(context: &ContextRef) -> ValueResult {
-        let mut prototype = context.new_object()?;
-
-        let print = context.new_dynamic_fn(GraphicsAPI::print_fn)?;
-        prototype.set_property(context, "print", &print)?;
-
-        Ok(prototype)
-    }
-}
-
 pub struct ScriptContext {
     context: Context,
     init: Value,
@@ -44,17 +34,7 @@ impl ScriptContext {
         context.add_intrinsic_bigdecimal();
         context.add_intrinsic_operators();
 
-        // TODO: This should be a module instead. Yuck.
+        GraphicsAPI::define(&context).expect("Graphics module should load without error");
-        let mut global = context
-            .global_object()
-            .expect("Unable to get global object");
-        let graphics = GraphicsAPI {};
-        let graphics = graphics
-            .into_value(&context)
-            .expect("Unable to wrap graphics API");
-        global
-            .set_property(&context, "graphics", &graphics)
-            .expect("Unable to establish graphics");
 
         let js = include_str!("main.js");
         let module = context