wip: filters compat

packages/compiler-core/src/codegen.ts

@@ -50,7 +50,8 @@ import {
   CREATE_BLOCK,
   OPEN_BLOCK,
   CREATE_STATIC,
-  WITH_CTX
+  WITH_CTX,
+  RESOLVE_FILTER
 } from './runtimeHelpers'
 import { ImportItem } from './transform'
 
@@ -274,6 +275,12 @@ export function generate(
       newline()
     }
   }
+  if (__COMPAT__ && ast.filters && ast.filters.length) {
+    newline()
+    genAssets(ast.filters, 'filter', context)
+    newline()
+  }
+
   if (ast.temps > 0) {
     push(`let `)
     for (let i = 0; i < ast.temps; i++) {
@@ -458,11 +465,15 @@ function genModulePreamble(
 
 function genAssets(
   assets: string[],
-  type: 'component' | 'directive',
+  type: 'component' | 'directive' | 'filter',
   { helper, push, newline }: CodegenContext
 ) {
   const resolver = helper(
-    type === 'component' ? RESOLVE_COMPONENT : RESOLVE_DIRECTIVE
+    __COMPAT__ && type === 'filter'
+      ? RESOLVE_FILTER
+      : type === 'component'
+        ? RESOLVE_COMPONENT
+        : RESOLVE_DIRECTIVE
   )
   for (let i = 0; i < assets.length; i++) {
     let id = assets[i]