fix(ssr): only cache computed getters during render phase

fix #5300
2022-01-21 12:31:54 +08:00
parent 25bc6549eb
commit 2f91872e7b
6 changed files with 75 additions and 9 deletions
--- a/packages/server-renderer/src/render.ts
+++ b/packages/server-renderer/src/render.ts
@@ -128,6 +128,12 @@ function renderComponentSubTree(
      comp.ssrRender = ssrCompile(comp.template, instance)
    }

+    // perf: enable caching of computed getters during render
+    // since there cannot be state mutations during render.
+    for (const e of instance.scope.effects) {
+      if (e.computed) e.computed._cacheable = true
+    }
+
    const ssrRender = instance.ssrRender || comp.ssrRender
    if (ssrRender) {
      // optimized