Remove level-mem compatibility checks

Category: removal

Author: vweevers

index.js

@@ -263,20 +263,12 @@ for (const Ctor of [MemoryIterator, MemoryKeyIterator, MemoryValueIterator]) {
 }
 
 class MemoryLevel extends AbstractLevel {
-  constructor (location, options, _) {
+  constructor (location, options) {
     // Take a dummy location argument to align with other implementations
     if (typeof location === 'object' && location !== null) {
       options = location
     }
 
-    // To help migrating from level-mem to abstract-level
-    // TODO (v2): remove
-    if (typeof location === 'function' || typeof options === 'function' || typeof _ === 'function') {
-      throw new ModuleError('The levelup-style callback argument has been removed', {
-        code: 'LEVEL_LEGACY'
-      })
-    }
-
     let { storeEncoding, ...forward } = options || {}
     storeEncoding = storeEncoding || 'buffer'
 

test.js

@@ -38,10 +38,3 @@ test('throws on unsupported storeEncoding', function (t) {
   t.throws(() => new MemoryLevel({ storeEncoding: 'foo' }), (err) => err.code === 'LEVEL_ENCODING_NOT_SUPPORTED')
   t.end()
 })
-
-test('throws on legacy level-mem options', function (t) {
-  t.throws(() => new MemoryLevel(() => {}), (err) => err.code === 'LEVEL_LEGACY')
-  t.throws(() => new MemoryLevel('x', () => {}), (err) => err.code === 'LEVEL_LEGACY')
-  t.throws(() => new MemoryLevel('x', {}, () => {}), (err) => err.code === 'LEVEL_LEGACY')
-  t.end()
-})