Class: Evilution::Compare::LineNormalizer

Inherits:
Object
  • Object
show all
Defined in:
lib/evilution/compare/line_normalizer.rb

Overview

Collapses whitespace runs in source-code text while preserving the contents of “…” and ‘…’ string literals. Used for fingerprinting mutation diffs so that whitespace-only differences do not cause false fingerprint mismatches across tooling (evilution vs mutant).

v1 limitation: only “ and ‘ literals are preserved. Regex literals (/…/), heredocs, %w[], %q{} forms are treated as ordinary code — whitespace runs inside them collapse. A mutation touching whitespace inside a regex may false-match across tools.

Instance Method Summary collapse

Instance Method Details

#call(line) ⇒ Object 



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# File 'lib/evilution/compare/line_normalizer.rb', line 19

def call(line)
  @chars = line.chars
  @i = 0
  @out = +""
  @in_literal = nil
  @last_was_space = false

  @i += step while @i < @chars.length
  result = @out.rstrip
  @chars = nil
  @out = nil
  result
end