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iOS screenshot implementation disagrees with the generated nullable bounds contract

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#253 0 条评论 0 个 reaction 已指派 0 人 在 GitHub 查看

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已经有一个关联 PR 被合并了。

  • #256 来自 @mrousavy —— 已合并

评估

难度
4/5
预计耗时
3-5 天
新手友好度
25/100
Issue 类型
缺陷
描述清晰度
描述清楚
活跃度
停滞
技术栈
react-native, typescript

调研方向

Start with the screenshot spec and the generated HarnessUISpec.h declaration, then inspect HarnessUI.mm and the playground regression tests. The issue describes moving nullable bounds into a required options object with an optional ViewInfo field; verify full-window, explicit-region, and element captures while keeping screen.screenshot() unchanged. Pull request #256 is already open against this issue.

由索引模型根据 Issue 内容生成。

描述

iOS builds report a conflicting parameter type for captureScreenshot:resolve:reject:: generated HarnessUISpec.h declares JS::NativeHarnessUI::ViewInfo &, while HarnessUI.mm implements ViewInfo *.

The TypeScript spec accepts ViewInfo | null, and screen.screenshot() passes null for a full-window capture. React Native's Objective-C++ generator still emits a reference for that top-level nullable struct. Changing the implementation to a reference alone would leave the full-window case without a valid optional value.

I am preparing a fix that puts optional bounds inside a required options object, using the generator's supported std::optional<ViewInfo> field representation. The public screen.screenshot() API stays the same. The playground regression will cover full-window, explicit-region and element captures.

Observed in Nitro's successful release build: https://github.com/margelo/nitro/actions/runs/39439032533/job/118683815608

主要语言
TypeScript
星标
333
派生
20
平均合并
14 小时 55 分钟
30 天内合并 PR
44

环境准备

从这里开始

  1. 先读完整个 Issue,再读项目的贡献指南。
  2. 在 Issue 下留言说明你要接手 —— 这能避免两个人做同样的事。
  3. Fork 仓库,在一个分支上完成修改。
  4. 提交 Pull Request,并在描述里引用这个 Issue 编号。

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