Return token from nextToken again

src/test.cpp

@@ -500,8 +500,8 @@ private:
 
   typedef PRESERVE_NONE bool (*continuation)(Parser2 *);
 
-  [[maybe_unused]] void printStack() {
-    printf("token: %s\n", symbolNames[currentToken]);
+  [[maybe_unused]] void debugPrint(Symbol token) {
+    printf("token: %s\n", symbolNames[token]);
     for (int i = 0; i < stackPtr - stack; ++i) {
       printf("%s ", symbolNames[stack[i]]);
     }
@@ -514,13 +514,13 @@ private:
   }
 
   PRESERVE_NONE static bool keepGoing(Parser2 *self) {
-    // self->printStack();
     if (self->empty()) {
       assert(self->currentToken == T_EOF);
       return true;
     }
-    self->nextToken();
-    MUSTTAIL return table[*(self->stackPtr - 1)][self->currentToken](self);
+    auto token = self->nextToken();
+    // self->debugPrint(token);
+    MUSTTAIL return table[*(self->stackPtr - 1)][token](self);
   }
 
   PRESERVE_NONE static bool reject(Parser2 *self) {
@@ -781,71 +781,55 @@ private:
       },
   };
 
-  Symbol currentToken;
   const char *bufBefore;
-  void nextToken() {
+  Symbol nextToken() {
     maybeSkipWs();
     bufBefore = buf;
     if (len == 0) {
-      currentToken = T_EOF;
-      return;
+      return T_EOF;
     }
     if (*buf == '{') {
       parseLiteral("{");
-      currentToken = T_LBRACE;
-      return;
+      return T_LBRACE;
     } else if (*buf == '[') {
       parseLiteral("[");
-      currentToken = T_LBRACKET;
-      return;
+      return T_LBRACKET;
     } else if (*buf == '}') {
       parseLiteral("}");
-      currentToken = T_RBRACE;
-      return;
+      return T_RBRACE;
     } else if (*buf == ']') {
       parseLiteral("]");
-      currentToken = T_RBRACKET;
-      return;
+      return T_RBRACKET;
     } else if (*buf == ':') {
       parseLiteral(":");
-      currentToken = T_COLON;
-      return;
+      return T_COLON;
     } else if (*buf == ',') {
       parseLiteral(",");
-      currentToken = T_COMMA;
-      return;
+      return T_COMMA;
     } else if (*buf == '"') {
       if (!parse_string()) {
-        currentToken = T_INVALID;
-        return;
+        return T_INVALID;
       }
-      currentToken = T_STRING;
-      return;
+      return T_STRING;
     } else if (*buf == 't') {
       if (!parseLiteral("true")) {
-        currentToken = T_INVALID;
-        return;
+        return T_INVALID;
       }
-      currentToken = T_ATOM;
-      return;
+      return T_ATOM;
     } else if (*buf == 'f') {
       if (!parseLiteral("false")) {
-        currentToken = T_INVALID;
-        return;
+        return T_INVALID;
       }
     } else if (*buf == 'n') {
       if (!parseLiteral("null")) {
-        currentToken = T_INVALID;
-        return;
+        return T_INVALID;
       }
     } else {
       if (!parse_number()) {
-        currentToken = T_INVALID;
-        return;
+        return T_INVALID;
       }
     }
-    currentToken = T_ATOM;
-    return;
+    return T_ATOM;
   }
 
   char *buf;