type_checkers: css_font_face

Author: krishpranav

src/type_checkers/css_font_face.cr

@@ -0,0 +1,42 @@
+# -----------------------------------------------------------------------
+# This file is part of MoonScript
+#
+# MoonSript is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+#
+# MoonSript is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with MoonSript.  If not, see <https://www.gnu.org/licenses/>.
+#
+# Copyright (C) 2025 Krisna Pranav, MoonScript Developers
+# -----------------------------------------------------------------------
+
+module MoonScript
+    class TypeChecker
+      def check(node : Ast::CssFontFace) : Checkable
+        resolve node.definitions
+  
+        node
+          .definitions
+          .select(Ast::CssDefinition)
+          .each do |definition|
+            interpolation =
+              definition.value.find(&.is_a?(Ast::Interpolation))
+  
+            error! :css_font_face_interpolation do
+              block "Interpolations are not allowed inside a font-face rule."
+  
+              snippet interpolation
+            end if interpolation
+          end
+  
+        VOID
+      end
+    end
+  end