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Breakpoints are inconsistent after fast refresh (hot reload) #49069

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vzaidman opened this issue Jan 30, 2025 · 2 comments
Closed

Breakpoints are inconsistent after fast refresh (hot reload) #49069

vzaidman opened this issue Jan 30, 2025 · 2 comments
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Debugger Issues related to React Native DevTools or legacy JavaScript/Hermes debugging Impact: Bug The issue represents a bug somewhere Resolution: Fixed A PR that fixes this issue has been merged.

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@vzaidman
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vzaidman commented Jan 30, 2025 •
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Description

Breakpoints are inconsistent after fast refresh (hot reload) and this becomes worse with every hot reload

Steps to reproduce

  1. Launch rn-tester
  2. Open the debugger from metro with j
  3. Fast refresh a few times by updating the code
  4. Set some breakpoint

Observe:
It sets many breakpoints for each breakpoint set in unexpected places / breakpoints jump / breakpoints are inconsistent

React Native Version

0.77.0

Screenshots and Videos

Screen.Recording.2025-01-30.at.15.42.39.mov
@vzaidman vzaidman added Debugger Issues related to React Native DevTools or legacy JavaScript/Hermes debugging Needs: Triage 🔍 labels Jan 30, 2025
@react-native-bot react-native-bot added Needs: Author Feedback Needs: Repro This issue could be improved with a clear list of steps to reproduce the issue. labels Jan 30, 2025
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Missing reproducer: We could not detect a reproducible example in your issue report. Please provide either:

@vzaidman
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vzaidman commented Jan 30, 2025 •
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Fixed by facebook/metro@cd7a935 in metro v0.81.1.

@github-actions github-actions bot added Needs: Attention Issues where the author has responded to feedback. and removed Needs: Author Feedback labels Jan 30, 2025
@vzaidman vzaidman changed the title breakpoints are inconsistent after fast refresh (hot reload) Breakpoints are inconsistent after fast refresh (hot reload) Jan 30, 2025
@vzaidman vzaidman added Impact: Bug The issue represents a bug somewhere and removed Needs: Repro This issue could be improved with a clear list of steps to reproduce the issue. Needs: Attention Issues where the author has responded to feedback. labels Jan 30, 2025
@cortinico cortinico added the Resolution: Fixed A PR that fixes this issue has been merged. label Jan 30, 2025
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Debugger Issues related to React Native DevTools or legacy JavaScript/Hermes debugging Impact: Bug The issue represents a bug somewhere Resolution: Fixed A PR that fixes this issue has been merged.
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@cortinico @vzaidman @react-native-bot