From e485c04ff794a30d21c4a77cccda52b581e95881 Mon Sep 17 00:00:00 2001
From: Sam Atman
Date: Thu, 5 Feb 2026 08:01:48 -0500
Subject: De-allocate Emoji module

---
 codegen/emoji.zig | 56 ++++++++++++++++++++++++++++++++++---------------------
 1 file changed, 35 insertions(+), 21 deletions(-)

(limited to 'codegen/emoji.zig')

diff --git a/codegen/emoji.zig b/codegen/emoji.zig
index 0a4dbe6..c44c483 100644
--- a/codegen/emoji.zig
+++ b/codegen/emoji.zig
@@ -44,21 +44,17 @@ pub fn main() !void {
     var emoji_map = std.AutoHashMap(u21, Emoji).init(allocator);
     defer emoji_map.deinit();
 
-    var line_buf: [4096]u8 = undefined;
-
     // Process Emoji
-    var in_file = try std.fs.cwd().openFile("data/unicode/emoji/emoji-data.txt", .{});
-    defer in_file.close();
-    var in_buf = std.io.bufferedReader(in_file.reader());
-    const in_reader = in_buf.reader();
 
-    while (try in_reader.readUntilDelimiterOrEof(&line_buf, '\n')) |line| {
-        if (line.len == 0 or line[0] == '#') continue;
+    var @"emo-reader" = std.io.Reader.fixed(@embedFile("emoji-data.txt"));
+    var count: usize = 0; // XXX: remove
+    while (@"emo-reader".takeDelimiterInclusive('\n')) |line| {
+        count += 1;
+        if (line.len <= 1 or line[0] == '#') continue;
         const no_comment = if (std.mem.indexOfScalar(u8, line, '#')) |octo| line[0..octo] else line;
 
         var field_iter = std.mem.tokenizeAny(u8, no_comment, "; ");
         var current_code: [2]u21 = undefined;
-
         var i: usize = 0;
         while (field_iter.next()) |field| : (i += 1) {
             switch (i) {
@@ -91,15 +87,20 @@ pub fn main() !void {
                 else => {},
             }
         }
+    } else |err| switch (err) {
+        error.EndOfStream => {},
+        else => {
+            return err;
+        },
     }
 
     var blocks_map = BlockMap.init(allocator);
     defer blocks_map.deinit();
 
-    var stage1 = std.ArrayList(u16).init(allocator);
+    var stage1 = std.array_list.Managed(u16).init(allocator);
     defer stage1.deinit();
 
-    var stage2 = std.ArrayList(u6).init(allocator);
+    var stage2 = std.array_list.Managed(u6).init(allocator);
     defer stage2.deinit();
 
     var block: Block = [_]u6{0} ** block_size;
@@ -129,18 +130,31 @@ pub fn main() !void {
     _ = args_iter.skip();
     const output_path = args_iter.next() orelse @panic("No output file arg!");
 
-    const compressor = std.compress.flate.deflate.compressor;
+    var write_buf: [4096]u8 = undefined;
     var out_file = try std.fs.cwd().createFile(output_path, .{});
     defer out_file.close();
-    var out_comp = try compressor(.raw, out_file.writer(), .{ .level = .best });
-    const writer = out_comp.writer();
-
-    const endian = builtin.cpu.arch.endian();
-    try writer.writeInt(u16, @intCast(stage1.items.len), endian);
-    for (stage1.items) |i| try writer.writeInt(u16, i, endian);
+    var writer = out_file.writer(&write_buf);
+
+    try writer.interface.print(
+        \\//! This file is auto-generated. Do not edit.
+        \\
+        \\pub const s1: [{}]u16 = .{{
+    , .{stage1.items.len});
+    for (stage1.items) |entry| try writer.interface.print("{}, ", .{entry});
+
+    try writer.interface.print(
+        \\
+        \\}};
+        \\
+        \\pub const s2: [{}]u6 = .{{
+    , .{stage2.items.len});
+    for (stage2.items) |entry| {
+        try writer.interface.print("{}, ", .{entry});
+    }
 
-    try writer.writeInt(u16, @intCast(stage2.items.len), endian);
-    for (stage2.items) |i| try writer.writeInt(u8, i, endian);
+    try writer.interface.writeAll(
+        \\};
+    );
 
-    try out_comp.flush();
+    try writer.interface.flush();
 }
-- 
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