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`overflow: scroll` is refused, though React Native's `overflow` takes it

Abierto Apto para principiantes
  • ¿Algo no está bien?
#540 0 comentarios 0 reacciones 0 asignados Ver en GitHub

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Evaluación

Dificultad
2/5
Tiempo estimado
1-3 horas
Aptitud para principiantes
84/100
Tipo de issue
Error
Claridad
Bien especificado
Estado de actividad
Activo
Stack tecnológico
react-native, typescript
Área
frontend

Línea de trabajo

Lee parseOverflow en src/compiler/declarations.ts y compara sus valores aceptados con FlexStyle["overflow"] de React Native. Ejecuta la prueba de reproducción descrita en la issue, src/__tests__/native/overflow-scroll.test.tsx, para confirmar la advertencia actual y el estilo que falta. La tarea estará terminada cuando overflow: scroll llegue a la vista renderizada y se sigan rechazando valores no compatibles como auto y clip.

Escrito por el modelo de indexación a partir del texto del issue.

Descripción

Before submitting a new issue
  • I tested using the latest version of the library, as the bug might be already fixed.
  • I tested using a supported version of react native.
  • I checked for possible duplicate issues, with possible answers.
Bug summary

React Native's overflow takes visible, hidden and scroll (FlexStyle["overflow"]). The compiler refuses scroll with a warning, so overflow: scroll sets nothing, while visible and hidden pass.

The scroll case fails, the element receiving no style:

overflow: visible -> warnings {}
overflow: hidden -> warnings {}
overflow: scroll -> warnings {"values":{"overflow":["scroll"]}}

parseOverflow (src/compiler/declarations.ts) allows visible and hidden only. auto and clip have no React Native counterpart, so refusing them stays right.

Library version

main at 2421ea7 (0.0.0-nightly.2421ea7)

Environment info
System:
  OS: Windows 11 10.0.26300
  CPU: "(32) x64 AMD Ryzen 9 9950X3D 16-Core Processor          "
  Memory: 155.26 GB / 255.67 GB
Binaries:
  Node:
    version: 26.12.1
    path: C:\Program Files\nodejs\node.EXE
  Yarn:
    version: 4.9.2
    path: C:\Users\<user>\AppData\Roaming\npm\yarn.CMD
  npm:
    version: 12.2.1
    path: C:\Program Files\nodejs\npm.CMD
  Watchman: Not Found
SDKs:
  Android SDK:
    API Levels:
      - "33"
      - "35"
      - "35"
      - "35"
      - "36"
      - "37"
    Build Tools:
      - 35.0.0
      - 36.0.0
      - 36.1.0
      - 37.0.0
    System Images:
      - android-26 | Google APIs Intel x86_64 Atom
      - android-28 | Google APIs Intel x86_64 Atom
      - android-29 | Google APIs Intel x86_64 Atom
      - android-30 | Google APIs Intel x86_64 Atom
      - android-31 | Google APIs Intel x86_64 Atom
      - android-32 | Google APIs Intel x86_64 Atom
      - android-33 | Google APIs Intel x86_64 Atom
      - android-34 | Google APIs Intel x86_64 Atom
      - android-35 | Google APIs Intel x86_64 Atom
      - android-36.1 | Google Play Intel x86_64 Atom
      - android-36.1 | Pre-Release 16 KB Page Size Google Play Intel x86_64 Atom
      - android-37.0 | Google APIs Intel x86_64 Atom
    Android NDK: Not Found
  Windows SDK: Not Found
IDEs:
  Android Studio: AI-262.9437.185.2621.16467767
  Visual Studio: Not Found
Languages:
  Java:
    version: 17.0.20.1
    path: C:\Program Files\Microsoft\jdk-17.0.20.101-hotspot\bin\javac.EXE
  Ruby: Not Found
npmPackages:
  "@react-native-community/cli": Not Found
  react:
    installed: 19.2.3
    wanted: 19.2.3
  react-native:
    installed: 0.86.3
    wanted: 0.86.3
  react-native-windows: Not Found
npmGlobalPackages:
  "*react-native*": Not Found
Android:
  hermesEnabled: Not found
  newArchEnabled: Not found
iOS:
  hermesEnabled: Not found
  newArchEnabled: Not found
Steps to reproduce
  1. Clone the reproducer branch, which is main at 2421ea7 with one file added, src/__tests__/native/overflow-scroll.test.tsx, and install: 
    git clone --branch repro/540-refused-miskeyed-values https://github.com/YevheniiKotyrlo/react-native-css
cd react-native-css
yarn install
  2. Run yarn jest src/__tests__/native/overflow-scroll.test.tsx.

src/__tests__/native/overflow-scroll.test.tsx:

import { render, screen } from "@testing-library/react-native";
import { View } from "react-native-css/components/View";
import { compile } from "react-native-css/compiler";
import { registerCSS, testID } from "react-native-css/jest";

test.each(["visible", "hidden", "scroll"])("overflow: %s reaches React Native", (value) => {
  console.log(`overflow: ${value} -> warnings ${JSON.stringify(compile(`.a { overflow: ${value}; }`).warnings())}`);
  registerCSS(`.a { overflow: ${value}; }`);
  render(<View testID={testID} className="a" />);
  expect(screen.getByTestId(testID).props.style).toStrictEqual({ overflow: value });
});

Expected: overflow: scroll sets overflow: "scroll", which React Native's overflow takes.

Actual: it is refused with a warning and sets nothing.

The run's output on main at 2421ea7, Windows 11, Node 26.12.1 
  console.log
    overflow: visible -> warnings {}
      at log (src/__tests__/native/overflow-scroll.test.tsx:7:11)
  console.log
    overflow: hidden -> warnings {}
      at log (src/__tests__/native/overflow-scroll.test.tsx:7:11)
  console.log
    overflow: scroll -> warnings {"values":{"overflow":["scroll"]}}
      at log (src/__tests__/native/overflow-scroll.test.tsx:7:11)
FAIL src/__tests__/native/overflow-scroll.test.tsx
  √ overflow: visible reaches React Native (25 ms)
  √ overflow: hidden reaches React Native (5 ms)
  × overflow: scroll reaches React Native (2 ms)
  ● overflow: scroll reaches React Native
    expect(received).toStrictEqual(expected) // deep equality
    Expected: {"overflow": "scroll"}
    Received: undefined
       8 |   registerCSS(`.a { overflow: ${value}; }`);
       9 |   render(<View testID={testID} className="a" />);
    > 10 |   expect(screen.getByTestId(testID).props.style).toStrictEqual({ overflow: value });
         |                                                  ^
      11 | });
      12 | 
      at toStrictEqual (src/__tests__/native/overflow-scroll.test.tsx:10:50)
Test Suites: 1 failed, 1 total
Tests:       1 failed, 2 passed, 3 total
Snapshots:   0 total
Time:        1.077 s, estimated 2 s
Ran all test suites matching /src\\__tests__\\native\\overflow-scroll.test.tsx/i.
Reproducible example repository

https://github.com/YevheniiKotyrlo/react-native-css/tree/repro/540-refused-miskeyed-values

Lenguaje dominante
TypeScript
Estrellas
166
Forks
45
Merge medio
13 d 14 h
PR fusionados (30 d)
1

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