optimize

tools/bundle.py

@@ -0,0 +1,45 @@
+#!/usr/bin/env python3
+# Bundles imgui/*.lua + backend into ONE ModuleScript: build/ImGui.luau
+# Why: ModuleScripts don't share globals, and the setfenv() alternative turns off Luau's fast paths / native codegen.
+# Each source file becomes a function in __FILES; IM_INCLUDE(name) runs it once and caches the result.
+# The module returns a table with every global the library defines (ImGui, ImVec2, ImGuiConfigFlags, ImGui_ImplRoblox, ...).
+import os, re
+
+ROOT = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
+SRC = os.path.join(ROOT, "imgui")
+FILES = {}
+for dp, _, fn in os.walk(SRC):
+    for f in sorted(fn):
+        if f.endswith(".lua"):
+            FILES[f] = open(os.path.join(dp, f)).read()
+
+ENTRY = ["imgui.lua", "imgui_impl_roblox.lua", "imgui_demo.lua"]  # run order
+
+names = set()
+for src in FILES.values():
+    names.update(re.findall(r"^function ([A-Za-z_]\w*)\s*\(", src, re.M))
+    names.update(re.findall(r"^([A-Za-z_]\w*)\s*=[^=]", src, re.M))
+
+out = ["--!native", "--!optimize 2", "-- GENERATED by tools/bundle.py from imgui/*.lua - do not edit", "",
+       "local __FILES, __LOADED = {}, {}",
+       "function IM_INCLUDE(name)",
+       "    local r = __LOADED[name]",
+       "    if r == nil then r = __FILES[name](); if r == nil then r = true end; __LOADED[name] = r end",
+       "    return r",
+       "end", ""]
+for name, src in sorted(FILES.items()):
+    out.append("__FILES[%r] = function()" % name)
+    out.append(src.rstrip("\n"))
+    out.append("end")
+    out.append("")
+for name in ENTRY:
+    out.append("IM_INCLUDE(%r)" % name)
+out.append("")
+out.append("return {")
+for n in sorted(names):
+    out.append("    %s = %s," % (n, n))
+out.append("}")
+
+os.makedirs(os.path.join(ROOT, "build"), exist_ok=True)
+open(os.path.join(ROOT, "build", "ImGui.luau"), "w").write("\n".join(out) + "\n")
+print("wrote build/ImGui.luau (%d files, %d exports)" % (len(FILES), len(names)))