[PATCH v3 1/1] widl: Add support for inherited runtime classes.

[Mohamad Al-Jaf]

From: Mohamad Al-Jaf

Needed to build windows.ui.composition.idl.
---
 tools/widl/parser.y | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/tools/widl/parser.y b/tools/widl/parser.y
index 5567d94559e..9c07536eac1 100644
--- a/tools/widl/parser.y
+++ b/tools/widl/parser.y
@@ -1009,8 +1009,9 @@ coclassdef: attributes coclass '{' class_interfaces '}' semicolon_opt
 runtimeclass: tRUNTIMECLASS typename		{ $$ = type_runtimeclass_declare($2, current_namespace); }
    ;

-runtimeclass_def: attributes runtimeclass '{' class_interfaces '}' semicolon_opt
-						{ $$ = type_runtimeclass_define($2, $1, $4); }
+runtimeclass_def: attributes runtimeclass inherit '{' class_interfaces '}' semicolon_opt
+						{ if ($3 && type_get_type($3) != TYPE_RUNTIMECLASS) error_loc("%s is not a runtimeclass\n", $3->name);
+						  $$ = type_runtimeclass_define($2, $1, $5); }
    ;

apicontract: tAPICONTRACT typename		{ $$ = type_apicontract_declare($2, current_namespace); }