fix(ecs): a component instance with a string name field is stored under that value

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評估

難度
3/5
預估耗時
1-2 天
新手友好度
74/100
Issue 類型
缺陷
描述清晰度
描述清楚
活躍度
活躍
技術堆疊
cpp, typescript
領域
backend, game-dev

研究方向

Start with modules/ecs/wasm/Utils.cpp:34-43 and trace how get_js_class_name chooses a component key; check modules/ecs/src/shared/editor-world.ts:293, 300 for the editor tracker’s use of the same behavior. Reproduce with a component instance that has a string name field, then verify instances are stored under their class name and getZipper([Tag]) finds them.

由索引模型根據 Issue 內容生成。

描述

bug modules:ecs
Which package is this bug report for?

ecs

Issue description

get_js_class_name reads c.name before c.constructor.name. For an instance new Tag("player") whose class has a name field, the component array key is "player", not "Tag", and each distinct value creates its own array, so getZipper([Tag]) never finds it. Common Name / Tag components are silently stored in the wrong array. The editor tracker relies on the same behavior (editor-world.ts:293, 300).

Where:

Evidence:

return get_js_class_type_name(c).value_or(get_js_class_var_name(c).value_or(UNKNOWN_COMPONENT_TYPE));
...
const std::optional<emscripten::val> name = get_js_member(c, "name");

Suggested fix: Use .name only when c is a function (a class) or a plain { name } descriptor; for instances use constructor.name.

Found during a code audit of main at be72076.

Code sample

No response

Versions
  • Engine main at be72076
  • pnpm 12.0.0, Node.js 26, Bun 1.3.14
Issue priority

Medium (should be fixed soon)

I have tested this issue on a development release

be72076

主要語言
TypeScript
星號
7
分支
2
平均合併
1 天 17 小時
30 天內合併 PR
17

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