From 091874ee59758967e93086c90d2b69201f7e7470 Mon Sep 17 00:00:00 2001
From: Kalinin Danila <rrabmig@10.211.218.166-vpn.dhcp.yndx.net>
Date: Sun, 21 Jun 2026 00:20:09 +0300
Subject: [PATCH 1/2] feat(classname): add BlockClassNameFormatter and
 ElementClassNameFormatter types

---
 packages/classname/classname.ts | 30 +++++++++++++++++++++++-------
 1 file changed, 23 insertions(+), 7 deletions(-)

diff --git a/packages/classname/classname.ts b/packages/classname/classname.ts
index 7c460b03..4fd33f9e 100644
--- a/packages/classname/classname.ts
+++ b/packages/classname/classname.ts
@@ -11,18 +11,30 @@ export type ClassNameList = string | Array<string | undefined>
 export type NoStrictEntityMods = Record<string, string | boolean | number | undefined>
 
 /**
- * BEM Entity className initializer.
+ * BEM Entity className formatter for block-bound formatters (created with one argument).
  */
-export type ClassNameInitilizer = (blockName: string, elemName?: string) => ClassNameFormatter
+export interface BlockClassNameFormatter {
+  (): string
+  (mods?: NoStrictEntityMods | null, mix?: ClassNameList): string
+  (elemName: string, elemMix?: ClassNameList): string
+  (elemName: string, elemMods?: NoStrictEntityMods | null, elemMix?: ClassNameList): string
+}
 
 /**
- * BEM Entity className formatter.
+ * BEM Entity className formatter for element-bound formatters (created with two arguments).
+ * Passing an element name is not allowed since the element is already fixed.
  */
-export interface ClassNameFormatter {
+export interface ElementClassNameFormatter {
   (): string
   (mods?: NoStrictEntityMods | null, mix?: ClassNameList): string
-  (elemName: string, elemMix?: ClassNameList): string
-  (elemName: string, elemMods?: NoStrictEntityMods | null, elemMix?: ClassNameList): string
+}
+
+/**
+ * BEM Entity className initializer.
+ */
+export interface ClassNameInitilizer {
+  (blockName: string): BlockClassNameFormatter
+  (blockName: string, elemName: string): ElementClassNameFormatter
 }
 
 /**
@@ -111,7 +123,9 @@ export function withNaming(preset: Preset): ClassNameInitilizer {
     return className
   }
 
-  return function cnGenerator(b: string, e?: string): ClassNameFormatter {
+  function cnGenerator(b: string): BlockClassNameFormatter
+  function cnGenerator(b: string, e: string): ElementClassNameFormatter
+  function cnGenerator(b: string, e?: string): BlockClassNameFormatter | ElementClassNameFormatter {
     return (
       elemOrMods?: NoStrictEntityMods | string | null,
       elemModsOrBlockMix?: NoStrictEntityMods | ClassNameList | null,
@@ -126,6 +140,8 @@ export function withNaming(preset: Preset): ClassNameInitilizer {
       return stringify(b, e, elemOrMods, elemModsOrBlockMix as ClassNameList)
     }
   }
+
+  return cnGenerator
 }
 
 /**

From f92d8faa716e0a30ffc48bdf5c9e8ef3c3f7db13 Mon Sep 17 00:00:00 2001
From: Kalinin Danila <rrabmig@10.211.218.166-vpn.dhcp.yndx.net>
Date: Sun, 21 Jun 2026 00:36:13 +0300
Subject: [PATCH 2/2] fix: change imported type

---
 packages/core/core.ts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/packages/core/core.ts b/packages/core/core.ts
index be0b4ece..4cf40e3e 100644
--- a/packages/core/core.ts
+++ b/packages/core/core.ts
@@ -1,6 +1,6 @@
 import { ComponentType, FC, JSX } from 'react'
 import { jsx } from 'react/jsx-runtime'
-import { cn, NoStrictEntityMods, ClassNameFormatter } from '@bem-react/classname'
+import { cn, NoStrictEntityMods, BlockClassNameFormatter } from '@bem-react/classname'
 import { classnames } from '@bem-react/classnames'
 
 function getDisplayName(Component: ComponentType | string) {
@@ -61,7 +61,7 @@ export function withBemMod<T, U extends IClassNameProps = {}>(
   mod: NoStrictEntityMods,
   enhance?: Enhance<T & U> | withBemModOptions,
 ) {
-  let entity: ClassNameFormatter
+  let entity: BlockClassNameFormatter
   let entityClassName: string
   let modNames: string[]