Module: LcpRuby::ConditionServices::FeatureFlag

Defined in:
lib/lcp_ruby/condition_services/feature_flag.rb

Overview

Default ‘feature_flag` condition service. Returns false for every flag — i.e., flags are off by default. Hosts override by registering their own implementation:

LcpRuby::ConditionServiceRegistry.register(
  "feature_flag", MyApp::FeatureFlagService
)

The host implementation accepts ‘params: { name: <flag>, … }` and returns a boolean. Tests for the override pattern live alongside the host’s flag service.

When the default returns false, it logs a one-shot dev warning per flag name (suppressed in ‘Rails.env.test?` so test suites don’t spam stderr when the host hasn’t wired feature flags yet). The latch is process-local and thread-safe via a Mutex — Puma running multiple threads on a single process won’t double-log.

Class Method Summary collapse

Class Method Details

.call(_record, context: {}, **args) ⇒ Object 



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# File 'lib/lcp_ruby/condition_services/feature_flag.rb', line 25

def call(_record, context: {}, **args)
  flag = args[:name].to_s
  warn_unimplemented(flag) unless flag.empty?
  false
end

.reset_warning_state! ⇒ Object

Test hook: clear the warned-flag set so per-flag warning specs can verify “warns once, not twice” without leaking state across examples.



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# File 'lib/lcp_ruby/condition_services/feature_flag.rb', line 34

def reset_warning_state!
  @warned_mutex.synchronize { @warned_flags = Set.new }
end