Hacktoberfest 2026: le issue che i maintainer hanno segnato per ottobre, aperte e adatte ai principianti. Sfoglia le issue Hacktoberfest

Feature Request: Search widget tree by error chain path

Aperta
#10,012 0 commenti 0 reazioni 0 assegnatari Vedi su GitHub

Nessuno ha ancora preso questa issue.

Valutazione

Difficoltà
5/5
Tempo stimato
Più di una settimana
Idoneità per principianti
45/100
Tipo di issue
Funzionalità
Chiarezza
Abbastanza chiara
Stato di attività
Attiva
Stack tecnologico
dart
Ambito
developer-experience, tooling

Direzione di ricerca

Start with the Inspector's existing search bar and widget-tree search behavior. Trace how a single widget name is matched, then determine how the tree can support ancestor-chain parsing with ← or ◂ separators and partial matching. Done means the example chain locates the matching node or nodes, highlights them, and scrolls the Inspector to the result.

Scritto dal modello di indicizzazione a partire dal testo della issue.

Descrizione

When a layout error occurs (e.g., RenderFlex overflowed), Flutter prints a widget ancestor chain like:

SizedBox ← Flexible ← Stack ← Row ← Padding ← DecoratedBox ← ConstrainedBox ← Container

Currently, there is no way to paste this chain into DevTools to locate the exact widget node in the Inspector tree. The existing search only matches a single widget name, which returns dozens of results for common widgets like SizedBox or Padding.

Proposed Solution

Add a "Search by widget chain" mode in the Inspector's search bar that:

Accepts a widget ancestor chain (using ← or ◂ as separators, matching Flutter's error output format)
Walks the widget tree and finds nodes whose ancestor path matches the given chain
Highlights and scrolls to the matching node(s)
Example

Given this error output:

SizedBox ← Flexible ← Stack ← Row

The search would find SizedBox nodes that have Flexible as parent, then Stack, then Row — and jump to the matching location in the tree.

Why This Is Useful
Direct error-to-inspector workflow: Copy the chain from the error console → paste into DevTools → land on the exact widget. No manual tree navigation needed.
Eliminates ambiguity: Searching for SizedBox alone may return 50+ results. The chain narrows it to the exact instance.
Partial matching: The chain from the error is often a subset of the full tree. The algorithm should support subsequence matching (the chain nodes appear in order but not necessarily adjacent in the full tree).
Additional Context
The widget chain format is already standardized in Flutter's error output, so no new format needs to be invented.
This could be a separate search mode (e.g., toggled by a button next to the search bar, or auto-detected when ← is present in the query).
The chain in errors sometimes includes RenderObject names — the search could optionally strip or ignore those.
Contribution

I'm interested in implementing this feature. Happy to be assigned and submit a PR if the team approves the approach.

Lingua principale
Dart
Stelle
1.7k
Fork
405
Merge medio
4g 21h
PR unite (30g)
15

Guida per i contributori

Apri la guida per i contributori

Come iniziare

  1. Leggi tutta la issue e poi la guida ai contributi del progetto.
  2. Commenta sulla issue per dire che te ne occupi tu — evita che due persone facciano lo stesso lavoro.
  3. Fai un fork del repository e lavora su un branch.
  4. Apri una pull request che faccia riferimento al numero della issue.

Altre issue di flutter/devtools

Tutte le issue di flutter/devtools

Issue simili

Altre issue su Dart

Ricevi le nuove issue nella tua casella

Un breve riepilogo di issue GitHub adatte ai principianti.