test: fix deep watch for Map/Set

2019-08-27 15:01:01 -04:00
parent 62e07a1b7e
commit 2b6ca9a7b6
2 changed files with 23 additions and 7 deletions
--- a/packages/runtime-core/src/apiWatch.ts
+++ b/packages/runtime-core/src/apiWatch.ts
@@ -164,7 +164,12 @@ function traverse(value: any, seen: Set<any> = new Set()) {
    for (let i = 0; i < value.length; i++) {
      traverse(value[i], seen)
    }
-  } else if (value instanceof Map || value instanceof Set) {
+  } else if (value instanceof Map) {
+    ;(value as any).forEach((v: any, key: any) => {
+      // to register mutation dep for existing keys
+      traverse(value.get(key), seen)
+    })
+  } else if (value instanceof Set) {
    ;(value as any).forEach((v: any) => {
      traverse(v, seen)
    })