[T6] added negative variable expression

gen/t6/parser.ypp

@@ -242,6 +242,7 @@ xsk::arc::t6::parser::symbol_type T6lex(xsk::arc::t6::lexer& lexer);
 %type <ast::expr_anim::ptr>              expr_anim
 %type <ast::expr_level::ptr>             expr_level
 %type <ast::expr_animation::ptr>         expr_animation
+%type <ast::expr>                        expr_identifier_neg
 %type <ast::expr_identifier::ptr>        expr_identifier_nosize
 %type <ast::expr_identifier::ptr>        expr_identifier
 %type <ast::expr_path::ptr>              expr_path
@@ -659,6 +660,7 @@ expr_primitive
     | expr_anim              { $$.as_node = std::move($1); }
     | expr_level             { $$.as_node = std::move($1); }
     | expr_animation         { $$.as_node = std::move($1); }
+    | expr_identifier_neg    { $$ = std::move($1); }
     | expr_identifier        { $$.as_node = std::move($1); }
     | expr_istring           { $$.as_node = std::move($1); }
     | expr_string            { $$.as_node = std::move($1); }
@@ -913,6 +915,11 @@ expr_animation
         { $$ = std::make_unique<ast::expr_animation>(@$, $2); };
     ;
 
+expr_identifier_neg
+    : SUB IDENTIFIER
+        { $$.as_node = std::make_unique<ast::expr_sub>(@$, ast::expr(std::make_unique<ast::expr_integer>(@$, "0")), ast::expr(std::make_unique<ast::expr_identifier>(@$, $2))); }
+    ;
+
 expr_identifier_nosize
     : IDENTIFIER
         { $$ = std::make_unique<ast::expr_identifier>(@$, $1); };

src/t6/xsk/parser.hpp

@@ -447,6 +447,7 @@ namespace xsk { namespace arc { namespace t6 {
       // expr_binary
       // expr_primitive
       // expr_object
+      // expr_identifier_neg
       char dummy6[sizeof (ast::expr)];
 
       // expr_abs
@@ -1093,17 +1094,18 @@ namespace xsk { namespace arc { namespace t6 {
         S_expr_anim = 210,                       // expr_anim
         S_expr_level = 211,                      // expr_level
         S_expr_animation = 212,                  // expr_animation
-        S_expr_identifier_nosize = 213,          // expr_identifier_nosize
+        S_expr_identifier_neg = 213,             // expr_identifier_neg
-        S_expr_identifier = 214,                 // expr_identifier
+        S_expr_identifier_nosize = 214,          // expr_identifier_nosize
-        S_expr_path = 215,                       // expr_path
+        S_expr_identifier = 215,                 // expr_identifier
-        S_expr_istring = 216,                    // expr_istring
+        S_expr_path = 216,                       // expr_path
-        S_expr_string = 217,                     // expr_string
+        S_expr_istring = 217,                    // expr_istring
-        S_expr_vector = 218,                     // expr_vector
+        S_expr_string = 218,                     // expr_string
-        S_expr_hash = 219,                       // expr_hash
+        S_expr_vector = 219,                     // expr_vector
-        S_expr_float = 220,                      // expr_float
+        S_expr_hash = 220,                       // expr_hash
-        S_expr_integer = 221,                    // expr_integer
+        S_expr_float = 221,                      // expr_float
-        S_expr_false = 222,                      // expr_false
+        S_expr_integer = 222,                    // expr_integer
-        S_expr_true = 223                        // expr_true
+        S_expr_false = 223,                      // expr_false
+        S_expr_true = 224                        // expr_true
       };
     };
 
@@ -1170,6 +1172,7 @@ namespace xsk { namespace arc { namespace t6 {
       case symbol_kind::S_expr_binary: // expr_binary
       case symbol_kind::S_expr_primitive: // expr_primitive
       case symbol_kind::S_expr_object: // expr_object
+      case symbol_kind::S_expr_identifier_neg: // expr_identifier_neg
         value.move< ast::expr > (std::move (that.value));
         break;
 
@@ -2713,6 +2716,7 @@ switch (yykind)
       case symbol_kind::S_expr_binary: // expr_binary
       case symbol_kind::S_expr_primitive: // expr_primitive
       case symbol_kind::S_expr_object: // expr_object
+      case symbol_kind::S_expr_identifier_neg: // expr_identifier_neg
         value.template destroy< ast::expr > ();
         break;
 
@@ -5427,8 +5431,8 @@ switch (yykind)
     /// Constants.
     enum
     {
-      yylast_ = 3411,     ///< Last index in yytable_.
+      yylast_ = 3494,     ///< Last index in yytable_.
-      yynnts_ = 98,  ///< Number of nonterminal symbols.
+      yynnts_ = 99,  ///< Number of nonterminal symbols.
       yyfinal_ = 22 ///< Termination state number.
     };
 
@@ -5485,6 +5489,7 @@ switch (yykind)
       case symbol_kind::S_expr_binary: // expr_binary
       case symbol_kind::S_expr_primitive: // expr_primitive
       case symbol_kind::S_expr_object: // expr_object
+      case symbol_kind::S_expr_identifier_neg: // expr_identifier_neg
         value.copy< ast::expr > (YY_MOVE (that.value));
         break;
 
@@ -5864,6 +5869,7 @@ switch (yykind)
       case symbol_kind::S_expr_binary: // expr_binary
       case symbol_kind::S_expr_primitive: // expr_primitive
       case symbol_kind::S_expr_object: // expr_object
+      case symbol_kind::S_expr_identifier_neg: // expr_identifier_neg
         value.move< ast::expr > (YY_MOVE (s.value));
         break;
 
@@ -6249,7 +6255,7 @@ switch (yykind)
 
 #line 13 "parser.ypp"
 } } } // xsk::arc::t6
-#line 6253 "parser.hpp"
+#line 6259 "parser.hpp"