Generate Mojom Types for Dart

mojo/public/tools/bindings/generators/dart_templates/union_definition.tmpl

Index: mojo/public/tools/bindings/generators/dart_templates/union_definition.tmpl
diff --git a/mojo/public/tools/bindings/generators/dart_templates/union_definition.tmpl b/mojo/public/tools/bindings/generators/dart_templates/union_definition.tmpl
index 511201eb30da382ae42d4f2506a3ab71108972fa..0dcfe87659297d1ce45f0740752517eb6c81bd87 100644
--- a/mojo/public/tools/bindings/generators/dart_templates/union_definition.tmpl
+++ b/mojo/public/tools/bindings/generators/dart_templates/union_definition.tmpl
@@ -1,8 +1,9 @@
 {#--- Begin #}
 
 {%- import "encoding_macros.tmpl" as encoding_macros %}
+{% import "mojom_type_macros.tmpl" as mojom_type_macros %}
 
-{%- macro enum_def(union) %}
+{%- macro enum_def(union, typepkg, package) %}
 enum {{union|name}}Tag {
 {%-   for field in union.fields %}
   {{field|tag_name}},
@@ -64,6 +65,8 @@ class {{union|name}} extends bindings.Union {
 {%-     endif %}
         break;
 {%-   endfor %}
+      default:
+        assert(false);
     }
 
     return result;
@@ -83,6 +86,8 @@ class {{union|name}} extends bindings.Union {
 {%-     endif %}
         break;
 {%-   endfor %}
+      default:
+        assert(false);
     }
   }
 
@@ -104,7 +109,9 @@ class {{union|name}} extends bindings.Union {
 {%- endmacro %}
 
 
-{%- macro union_def(union) %}
+{%- macro union_def(union, typepkg, package) %}
 {{enum_def(union)}}
 {{wrapper_def(union)}}
+
+{{ mojom_type_macros.writeMojomTypeDef(union, typepkg, package) }}
 {%- endmacro %}