Class: Hone::Patterns::InjectSum

Inherits:
Base
  • Object
show all
Defined in:
lib/hone/patterns/inject_sum.rb

Overview

Pattern: array.inject(0, :+) -> array.sum

sum is optimized for numeric summation with native implementation. Also handles empty arrays correctly (returns 0).

Instance Attribute Summary

Attributes inherited from Base

#findings

Instance Method Summary collapse

Methods inherited from Base

#add_finding, inherited, #initialize, scan_file

Constructor Details

This class inherits a constructor from Hone::Patterns::Base

Instance Method Details

#visit_call_node(node) ⇒ Object 



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# File 'lib/hone/patterns/inject_sum.rb', line 13

def visit_call_node(node)
  super

  return unless %i[inject reduce].include?(node.name)
  return unless sum_pattern?(node)

  add_finding(
    node,
    message: "Use `.sum` instead of `.#{node.name}(:+)` for optimized numeric summation",
    speedup: "Native C implementation, cleaner code"
  )
end