From ae10b7d764d9587ab92a682781f8479107e8dff0 Mon Sep 17 00:00:00 2001
From: Nathan Reiner <nathan@nathanreiner.xyz>
Date: Sat, 19 Jul 2025 20:18:15 +0200
Subject: add pex

---
 src/pex/node.zig | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 src/pex/node.zig

(limited to 'src/pex/node.zig')

diff --git a/src/pex/node.zig b/src/pex/node.zig
new file mode 100644
index 0000000..7abb274
--- /dev/null
+++ b/src/pex/node.zig
@@ -0,0 +1,36 @@
+const std = @import("std");
+const Instruction = @import("instruction.zig").Instruction;
+
+const Self = @This();
+
+instruction: Instruction,
+next: ?*Self = null,
+
+pub fn create(instruction: Instruction, node_pool: *std.heap.MemoryPool(Self)) !*Self {
+    const node = try node_pool.create();
+    node.* = .{ .instruction = instruction };
+    return node;
+}
+
+pub fn deinit(self: *Self) void {
+    if (self.next) |next| {
+        next.deinit();
+    }
+    self.* = undefined;
+}
+
+pub fn clone(
+    self: *Self,
+    node_pool: *std.heap.MemoryPool(Self),
+) !*Self {
+    const self_clone = try node_pool.create();
+    self_clone.instruction = self.instruction;
+
+    if (self.next) |next| {
+        self_clone.next = try next.clone(node_pool);
+    } else {
+        self_clone.next = null;
+    }
+
+    return self_clone;
+}
-- 
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