wip: compat configuration

packages/runtime-core/src/compat/compatConfig.ts

@@ -0,0 +1,26 @@
+import { extend } from '@vue/shared'
+import { DeprecationTypes } from './deprecations'
+
+export type CompatConfig = Partial<
+  Record<DeprecationTypes, DeprecationConfigItem>
+>
+
+export interface DeprecationConfigItem {
+  warning?: boolean // defaults to true
+  mode?: 2 | 3 // defaults to 2
+}
+
+const globalCompatConfig: CompatConfig = {}
+
+export function configureCompat(config: CompatConfig) {
+  extend(globalCompatConfig, config)
+}
+
+/**
+ * @internal
+ */
+export function getCompatConfig(
+  key: DeprecationTypes
+): DeprecationConfigItem | undefined {
+  return globalCompatConfig[key]
+}