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authorVincent Ambo <mail@tazj.in>2022-08-23T19·57+0300
committertazjin <tazjin@tvl.su>2022-09-01T21·56+0000
commit0b37b3f2a9b3cd59f609b41f7c72f1a4d7dce39c (patch)
tree99c3ae6d6b7977ce78b98589075084cad0a443f2 /tvix/eval/src
parent6f31c895ffe2dc5dd8281d812252d5db0644ec77 (diff)
feat(tvix/eval): add call frame struct to VM r/4577
This is going to carry the data for a function invocation inside of
the VM.

Change-Id: I86664563a7e35697a64294acd37ffde037fbd32d
Reviewed-on: https://cl.tvl.fyi/c/depot/+/6241
Tested-by: BuildkiteCI
Reviewed-by: grfn <grfn@gws.fyi>
Diffstat (limited to 'tvix/eval/src')
-rw-r--r--tvix/eval/src/vm.rs8
1 files changed, 8 insertions, 0 deletions
diff --git a/tvix/eval/src/vm.rs b/tvix/eval/src/vm.rs
index c9b09be82b1c..99e2ba91327c 100644
--- a/tvix/eval/src/vm.rs
+++ b/tvix/eval/src/vm.rs
@@ -13,7 +13,14 @@ use crate::{
 #[cfg(feature = "disassembler")]
 use crate::disassembler::Tracer;
 
+struct CallFrame {
+    lambda: Lambda,
+    ip: usize,
+    stack_offset: usize,
+}
+
 pub struct VM {
+    frames: Vec<CallFrame>,
     ip: usize,
     chunk: Chunk,
     stack: Vec<Value>,
@@ -367,6 +374,7 @@ impl VM {
 
 pub fn run_lambda(lambda: Lambda) -> EvalResult<Value> {
     let mut vm = VM {
+        frames: vec![],
         chunk: Rc::<Chunk>::try_unwrap(lambda.chunk).unwrap(),
         ip: 0,
         stack: vec![],