05

src/ir/inst.zig

@@ -200,6 +200,10 @@ pub const Op = union(enum) {
     box_any: BoxAny, // T → Any (erase type)
     unbox_any: UnaryOp, // Any → T (restore type)
 
+    // ── Reflection ─────────────────────────────────────────────────
+    field_name_get: FieldReflect, // field_name(T, i) → string (runtime index)
+    field_value_get: FieldReflect, // field_value(s, i) → Any (runtime struct + index)
+
     // ── Terminators ─────────────────────────────────────────────────
     br: Branch,
     cond_br: CondBranch,
@@ -277,7 +281,6 @@ pub const BuiltinCall = struct {
 };
 
 pub const BuiltinId = enum(u16) {
-    print,
     out,
     sqrt,
     size_of,
@@ -286,6 +289,9 @@ pub const BuiltinId = enum(u16) {
     free,
     memcpy,
     memset,
+    type_of,
+    alloc,
+    dealloc,
 };
 
 pub const ProtocolCall = struct {
@@ -324,6 +330,12 @@ pub const BoxAny = struct {
     source_type: TypeId,
 };
 
+pub const FieldReflect = struct {
+    base: Ref, // struct value (for field_value_get) or Ref.none (for field_name_get)
+    index: Ref, // runtime field index
+    struct_type: TypeId, // compile-time resolved struct type
+};
+
 pub const Branch = struct {
     target: BlockId,
     args: []const Ref, // block param values
@@ -356,6 +368,7 @@ pub const Block = struct {
     name: StringId,
     params: []const TypeId, // block parameter types (SSA phi alternative)
     insts: std.ArrayList(Inst),
+    first_ref: u32 = 0, // ref index of the first instruction in this block
 
     pub fn init(name: StringId, params: []const TypeId) Block {
         return .{