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Refactor Call to include is_tail flag

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The `TailCall` variant has been merged into `Call` by adding an
`is_tail` boolean field. This simplifies the AST by reducing the number
of node variants and makes it easier to handle tail call optimization.
The `tco.rs` module is responsible for setting this flag when a call
occurs in tail position.
This commit is contained in:
Michael Schimmel
2026-02-21 21:12:20 +01:00
parent f980d9befc
commit 78dff07930
9 changed files with 41 additions and 109 deletions
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src/ast/compiler/specializer.rs
+2 -7
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@@ -48,14 +48,9 @@ impl Specializer {
fn visit_node(&self, node: TypedNode) -> TypedNode {
let (new_kind, new_ty) = match node.kind {
BoundKind::Call { callee, args } => {
BoundKind::Call { callee, args, is_tail } => {
let (new_callee, new_args, ret_ty) = self.specialize_call_logic(*callee, *args, node.ty.clone());
(BoundKind::Call { callee: Box::new(new_callee), args: Box::new(new_args) }, ret_ty)
},
BoundKind::TailCall { callee, args } => {
let (new_callee, new_args, ret_ty) = self.specialize_call_logic(*callee, *args, node.ty.clone());
(BoundKind::TailCall { callee: Box::new(new_callee), args: Box::new(new_args) }, ret_ty)
(BoundKind::Call { callee: Box::new(new_callee), args: Box::new(new_args), is_tail }, ret_ty)
},
// Recursive traversal for other nodes