Added create_constructor method (#144)

src/lib/js/math.rs

@@ -191,7 +191,7 @@ pub fn tan(_: &Value, args: &[Value], _: &mut Interpreter) -> ResultValue {
     }))
 }
 /// Create a new `Math` object
-pub fn _create(global: &Value) -> Value {
+pub fn create_constructor(global: &Value) -> Value {
     let math = ValueData::new_obj(Some(global));
     math.set_field_slice("E", to_value(f64::consts::E));
     math.set_field_slice("LN2", to_value(f64::consts::LN_2));
@@ -222,7 +222,3 @@ pub fn _create(global: &Value) -> Value {
     math.set_field_slice("tan", to_value(tan as NativeFunctionData));
     math
 }
-/// Initialise the `Math` object on the global object
-pub fn init(global: &Value) {
-    global.set_field_slice("Math", _create(global));
-}

src/lib/realm.rs

@@ -53,7 +53,6 @@ impl Realm {
         let global = &self.global_obj;
         // Create intrinsics, add global objects here
         object::init(global);
-        math::init(global);
         function::init(global);
         json::init(global);
 
@@ -61,6 +60,7 @@ impl Realm {
         global.set_field_slice("RegExp", regexp::create_constructor(global));
         global.set_field_slice("Array", array::create_constructor(global));
         global.set_field_slice("Boolean", boolean::create_constructor(global));
+        global.set_field_slice("Math", math::create_constructor(global));
         global.set_field_slice("console", console::create_constructor(global));
     }
 }