widl: Add basic support for the [deprecated] attribute.

tools/widl/attribute.c

@@ -157,6 +157,7 @@ struct allowed_attr allowed_attr[] =
     /* ATTR_DEFAULTCOLLELEM */     { 0, 0, 0,  0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "defaultcollelem" },
     /* ATTR_DEFAULTVALUE */        { 0, 0, 0,  0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "defaultvalue" },
     /* ATTR_DEFAULTVTABLE */       { 0, 0, 0,  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, "defaultvtable" },
+    /* ATTR_DEPRECATED */          { 0, 0, 0,  1, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, "deprecated" },
  /* ATTR_DISABLECONSISTENCYCHECK */{ 0, 0, 0,  0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "disable_consistency_check" },
     /* ATTR_DISPINTERFACE */       { 0, 0, 0,  0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, NULL },
     /* ATTR_DISPLAYBIND */         { 0, 0, 0,  0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, "displaybind" },

tools/widl/parser.l

@@ -258,6 +258,7 @@ static void winrt_enable( int ns_prefix )
     defaultcollelem                             { return tDEFAULTCOLLELEM; }
     defaultvalue                                { return tDEFAULTVALUE; }
     defaultvtable                               { return tDEFAULTVTABLE; }
+    deprecated                                  { return token_winrt( tDEPRECATED, yytext, yylval ); }
     disable_consistency_check                   { return tDISABLECONSISTENCYCHECK; }
     displaybind                                 { return tDISPLAYBIND; }
     dllname                                     { return tDLLNAME; }

tools/widl/parser.y

@@ -199,6 +199,7 @@ void pop_import( PARSER_LTYPE *yylloc );
 %token tDEFAULTCOLLELEM
 %token tDEFAULTVALUE
 %token tDEFAULTVTABLE
+%token tDEPRECATED
 %token tDISABLECONSISTENCYCHECK tDISPLAYBIND
 %token tDISPINTERFACE
 %token tDLLNAME tDONTFREE tDOUBLE tDUAL
@@ -298,6 +299,7 @@ void pop_import( PARSER_LTYPE *yylloc );
 %type <expr> static_attr
 %type <expr> activatable_attr
 %type <expr> composable_attr
+%type <expr> deprecated_attr
 %type <type> delegatedef
 %type <stgclass> storage_cls_spec
 %type <type_qualifier> type_qualifier m_type_qual_list
@@ -628,6 +630,11 @@ composable_attr
                                                 }
         ;
 
+deprecated_attr
+        : aSTRING ',' aIDENTIFIER ',' contract_req
+                                                { $$ = make_expr3( EXPR_MEMBER, make_exprs( EXPR_STRLIT, $1 ), make_exprs( EXPR_IDENTIFIER, $3 ), $5 ); }
+        ;
+
 attribute
         : %empty                                { $$ = NULL; }
         | tACTIVATABLE '(' activatable_attr ')' { $$ = attr_ptr( @$, ATTR_ACTIVATABLE, $3 ); }
@@ -659,6 +666,7 @@ attribute
         | tDEFAULTCOLLELEM                      { $$ = attr_int( @$, ATTR_DEFAULTCOLLELEM, 0 ); }
         | tDEFAULTVALUE '(' expr_const ')'      { $$ = attr_ptr( @$, ATTR_DEFAULTVALUE, $3 ); }
         | tDEFAULTVTABLE                        { $$ = attr_int( @$, ATTR_DEFAULTVTABLE, 0 ); }
+        | tDEPRECATED '(' deprecated_attr ')'   { $$ = attr_ptr( @$, ATTR_DEPRECATED, $3 ); }
         | tDISABLECONSISTENCYCHECK              { $$ = attr_int( @$, ATTR_DISABLECONSISTENCYCHECK, 0 ); }
         | tDISPLAYBIND                          { $$ = attr_int( @$, ATTR_DISPLAYBIND, 0 ); }
         | tDLLNAME '(' aSTRING ')'              { $$ = attr_ptr( @$, ATTR_DLLNAME, $3 ); }

tools/widl/widltypes.h

@@ -96,6 +96,7 @@ enum attr_type
     ATTR_DEFAULTCOLLELEM,
     ATTR_DEFAULTVALUE,
     ATTR_DEFAULTVTABLE,
+    ATTR_DEPRECATED,
     ATTR_DISABLECONSISTENCYCHECK,
     ATTR_DISPINTERFACE,
     ATTR_DISPLAYBIND,