arena

src/ast.zig

@@ -39,6 +39,7 @@ pub const Node = struct {
         type_expr: TypeExpr,
         param: Param,
         defer_stmt: DeferStmt,
+        push_stmt: PushStmt,
         comptime_expr: ComptimeExpr,
         insert_expr: InsertExpr,
         return_stmt: ReturnStmt,
@@ -253,12 +254,18 @@ pub const StructTypeParam = struct {
     constraint: *Node, // type_expr: "u32" for value param, "Type" for type param
 };
 
+pub const UsingEntry = struct {
+    insert_index: u32, // position in field_names where used fields are spliced
+    type_name: []const u8, // struct type to inline
+};
+
 pub const StructDecl = struct {
     name: []const u8,
     field_names: []const []const u8,
     field_types: []const *Node, // type_expr nodes
     field_defaults: []const ?*Node, // default value per field, null if none
     type_params: []const StructTypeParam = &.{},
+    using_entries: []const UsingEntry = &.{},
 };
 
 pub const StructFieldInit = struct {
@@ -288,6 +295,11 @@ pub const DeferStmt = struct {
     expr: *Node,
 };
 
+pub const PushStmt = struct {
+    context_expr: *Node,
+    body: *Node,
+};
+
 pub const ComptimeExpr = struct {
     expr: *Node,
 };