Vec impl

src/lib.rs

@@ -295,7 +295,37 @@ where
 	}
 }
 
-mod build {}
+impl<T> Value for Vec<T>
+where
+	T: Value,
+{
+	fn print(&self, w: &mut String) {
+		for v in self.iter() {
+			v.print(w)
+		}
+	}
+
+	fn lookup(&self, name: &str) -> Option<&dyn Value> {
+		let idx: usize = name.parse().ok()?;
+		self.get(idx).map(|v| v as &dyn Value)
+	}
+
+	fn has(&self) -> Option<&dyn Value> {
+		if self.is_empty() {
+			None
+		} else {
+			Some(self)
+		}
+	}
+
+	fn if_(&self) -> bool {
+		self.is_empty()
+	}
+
+	fn for_(&self, index: usize) -> Option<&dyn Value> {
+		self.get(index).map(|v| v as &dyn Value)
+	}
+}
 
 pub struct Newt {
 	ast: Ast,