Merge pull request tree-sitter#3280 from ObserverOfTime/reduce

refactor(parser): make REDUCE macro non-variadic

Author: maxbrunsfeld

cli/src/generate/render.rs

@@ -1299,16 +1299,9 @@ impl Generator {
                     } => {
                         add!(
                             self,
-                            "REDUCE(.symbol = {}, .child_count = {child_count}",
+                            "REDUCE({}, {child_count}, {dynamic_precedence}, {production_id})",
                             self.symbol_ids[&symbol]
                         );
-                        if dynamic_precedence != 0 {
-                            add!(self, ", .dynamic_precedence = {dynamic_precedence}");
-                        }
-                        if production_id != 0 {
-                            add!(self, ", .production_id = {production_id}");
-                        }
-                        add!(self, ")");
                     }
                 }
                 add!(self, ",");

lib/src/parser.h

@@ -203,12 +203,15 @@ struct TSLanguage {
     }                                 \
   }}
 
-#define REDUCE(...) \
-  {{                                             \
-    .reduce = {                                  \
-      .type = TSParseActionTypeReduce,           \
-      __VA_ARGS__                                \
-    },                                           \
+#define REDUCE(symbol_name, children, precedence, prod_id) \
+  {{                                                       \
+    .reduce = {                                            \
+      .type = TSParseActionTypeReduce,                     \
+      .symbol = symbol_name,                               \
+      .child_count = children,                             \
+      .dynamic_precedence = precedence,                    \
+      .production_id = prod_id                             \
+    },                                                     \
   }}
 
 #define RECOVER()                    \