dart-sdk: support two level namespace for macOS, dart-sass 1.99.0 (new formula)

Formula/d/dart-sass.rb

@@ -0,0 +1,60 @@
+class DartSass < Formula
+  desc "Reference implementation of Sass, written in Dart"
+  homepage "https://sass-lang.com/dart-sass"
+  url "https://github.com/sass/dart-sass/archive/refs/tags/1.99.0.tar.gz"
+  sha256 "5f969b2eedf86384d90a9a339824b6652a4600e9e5f32784a7e48e453e145016"
+  license "MIT"
+
+  depends_on "buf" => :build
+  depends_on "dart-sdk" => :build
+  depends_on "dartaotruntime"
+
+  resource "language" do
+    url "https://github.com/sass/sass/archive/refs/tags/embedded-protocol-3.2.0.tar.gz"
+    sha256 "4e1f81684bc1666f03e52ddc790d0c2c22d99a5313fa2efe1dde4a5b5733c186"
+  end
+
+  def install
+    ENV["PUB_ENVIRONMENT"] = "homebrew:sass"
+    ENV["DART_SUPPRESS_ANALYTICS"] = "true"
+
+    (buildpath/"build/language").install resource("language")
+
+    system "dart", "pub", "get"
+    with_env(UPDATE_SASS_PROTOCOL: "false") do
+      system "dart", "run", "grinder", "protobuf"
+    end
+
+    args = %W[
+      -Dversion=#{version}
+      -Ddart-version=#{Formula["dart-sdk"].version}
+      -Dcompiler-version=#{version}
+      -Dprotocol-version=#{resource("language").version}
+    ]
+    system "dart", "compile", "aot-snapshot", "--output", "sass.aot", *args, "bin/sass.dart"
+    libexec.install "sass.aot"
+
+    (bin/"sass").write <<~BASH
+      #!/bin/bash
+      exec "#{Formula["dartaotruntime"].opt_bin}/dartaotruntime" "#{libexec}/sass.aot" "$@"
+    BASH
+  end
+
+  test do
+    assert_match version.to_s, shell_output("#{bin}/sass --version")
+
+    (testpath/"test.scss").write(".class {property: 1 + 1}")
+    assert_match "property: 2;", shell_output("#{bin}/sass test.scss 2>&1")
+
+    (testpath/"input.scss").write <<~EOS
+      div {
+        img {
+          border: 0px;
+        }
+      }
+    EOS
+
+    assert_equal "div img{border:0px}",
+    shell_output("#{bin}/sass --style compressed input.scss").strip
+  end
+end

Formula/d/dart-sdk.rb

@@ -42,6 +42,20 @@ def install
     system "gclient", "config", "--name", "sdk", "https://dart.googlesource.com/sdk.git@#{version}"
     system "gclient", "sync", "--no-history"
 
+    # Workaround for error: 'readdir_r' is deprecated
+    # Issue ref: https://github.com/dart-lang/sdk/issues/63089
+    inreplace "sdk/build/config/compiler/BUILD.gn",
+              "\"-Wno-tautological-constant-compare\",",
+              "\\0\n      \"-Wno-deprecated-declarations\","
+
+    # Workaround for dependants audit failure: Libraries were compiled with a flat namespace.
+    # Issue ref: https://github.com/dart-lang/sdk/issues/63115
+    # PR ref: https://github.com/dart-lang/sdk/pull/63116
+    inreplace "sdk/runtime/platform/mach_o.h",
+              "MH_NO_REEXPORTED_DYLIBS = 0x100000;",
+              "\\0\nstatic constexpr uint32_t MH_TWOLEVEL = 0x80;"
+    inreplace "sdk/runtime/vm/mach_o.cc", "MH_NO_REEXPORTED_DYLIBS", "\\0 | mach_o::MH_TWOLEVEL"
+
     chdir "sdk" do
       arch = Hardware::CPU.arm? ? "arm64" : "x64"
       system "./tools/build.py", "--mode=release", "--arch=#{arch}", "create_sdk"