Fix bugs in binary parsing

dust-lang/src/parser/mod.rs

@@ -313,7 +313,7 @@ impl<'src> Parser<'src> {
             _ => {
                 push_back_left = true;
 
-                self.current_register
+                left_instruction.destination()
             }
         };
 
@@ -348,7 +348,7 @@ impl<'src> Parser<'src> {
             _ => {
                 push_back_right = true;
 
-                self.current_register
+                right_instruction.destination()
             }
         };
 
@@ -573,7 +573,7 @@ impl<'src> Parser<'src> {
         };
         let has_semicolon = self.allow(TokenKind::Semicolon)?;
 
-        if (!has_semicolon || is_expression) && self.is_eof() {
+        if (!has_semicolon && is_expression) && self.is_eof() {
             let end = self.previous_position.1;
 
             self.emit_instruction(Instruction::r#return(), Span(start, end));

dust-lang/src/parser/tests.rs

@@ -2,6 +2,26 @@ use crate::Local;
 
 use super::*;
 
+#[test]
+fn list() {
+    let source = "[1, 2, 3]";
+
+    assert_eq!(
+        parse(source),
+        Ok(Chunk::with_data(
+            vec![
+                (Instruction::load_constant(0, 0), Span(1, 2)),
+                (Instruction::load_constant(1, 1), Span(4, 5)),
+                (Instruction::load_constant(2, 2), Span(7, 8)),
+                (Instruction::load_list(3, 3), Span(0, 9)),
+                (Instruction::r#return(), Span(0, 9)),
+            ],
+            vec![Value::integer(1), Value::integer(2), Value::integer(3),],
+            vec![]
+        )),
+    );
+}
+
 #[test]
 fn block_scope() {
     let source = "