Module: Ruact::ServerFunctions::BacktraceCleaner

Defined in:
lib/ruact/server_functions/backtrace_cleaner.rb

Overview

Story 8.4 — Splits an exception backtrace into application frames and gem-internal frames so the dev overlay can hide gem frames behind a toggle by default while still capturing them for the “Copy to clipboard” affordance.

Pure function, no I/O. Anchors classification on Ruact.gem_path which is memoised at gem load time; the per-frame ‘start_with?` check is therefore constant-time.

Deliberately NOT a thin wrapper over ‘ActiveSupport::BacktraceCleaner` —that class’s silencer/filter API is heavyweight for this single-purpose need; this module is ~10 LoC with zero ActiveSupport dependency so it loads cleanly in AR-less specs (see Pitfall #4 in the story).

Class Method Summary collapse

Class Method Details

.split(backtrace) ⇒ Hash{Symbol=>Array<String>}

Split a raw backtrace into app and gem buckets.

Parameters:

  • backtrace (Array<String>, nil) —

    frames from ‘Exception#backtrace`

Returns:

  • (Hash{Symbol=>Array<String>}) —

    ‘{ app: […], gem: […] }`



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# File 'lib/ruact/server_functions/backtrace_cleaner.rb', line 23

def self.split(backtrace)
  return { app: [], gem: [] } if backtrace.nil? || backtrace.empty?

  gem_prefix = Ruact.gem_path
  gem_frames, app_frames = backtrace.partition { |frame| frame.start_with?(gem_prefix) }
  { app: app_frames, gem: gem_frames }
end