Split core and standard libraries into packages.

src/packages/pkg_core.rs

@@ -0,0 +1,37 @@
+use super::arithmetic::ArithmeticPackage;
+use super::create_new_package;
+use super::iter_basic::BasicIteratorPackage;
+use super::logic::LogicPackage;
+use super::string_basic::BasicStringPackage;
+use super::{Package, PackageLibrary, PackageLibraryStore};
+
+use crate::stdlib::ops::Deref;
+
+pub struct CorePackage(PackageLibrary);
+
+impl Deref for CorePackage {
+    type Target = PackageLibrary;
+
+    fn deref(&self) -> &PackageLibrary {
+        &self.0
+    }
+}
+
+impl Package for CorePackage {
+    fn new() -> Self {
+        let mut pkg = create_new_package();
+        Self::init(&mut pkg);
+        Self(pkg.into())
+    }
+
+    fn init(lib: &mut PackageLibraryStore) {
+        ArithmeticPackage::init(lib);
+        LogicPackage::init(lib);
+        BasicStringPackage::init(lib);
+        BasicIteratorPackage::init(lib);
+    }
+
+    fn get(&self) -> PackageLibrary {
+        self.0.clone()
+    }
+}