From fddd4555f7162fb64b1fa1b57282de63d0f4d452 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Edvard=20Th=C3=B6rnros?= <edvard.thornros@gmail.com>
Date: Thu, 28 Jan 2021 21:10:48 +0100
Subject: Access fields

---
 src/vm.rs | 11 +++++++++++
 1 file changed, 11 insertions(+)

(limited to 'src/vm.rs')

diff --git a/src/vm.rs b/src/vm.rs
index df970db..028f2cd 100644
--- a/src/vm.rs
+++ b/src/vm.rs
@@ -122,6 +122,7 @@ pub enum Op {
     Pop,
     PopUpvalue,
     Constant(Value),
+    Get(String),
 
     Add,
     Sub,
@@ -415,6 +416,16 @@ impl VM {
                 self.stack.push(value);
             }
 
+            Op::Get(field) => {
+                let inst = self.stack.pop();
+                if let Some(Value::BlobInstance(ty, values)) = inst {
+                    let slot = self.blobs[ty].name_to_field.get(&field).unwrap().0;
+                    self.stack.push(values[slot].clone());
+                } else {
+                    error!(self, ErrorKind::RuntimeTypeError(Op::Get(field.clone()), vec![inst.unwrap()]));
+                }
+            }
+
             Op::Neg => {
                 match self.stack.pop().unwrap() {
                     Value::Float(a) => self.stack.push(Value::Float(-a)),
-- 
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