Module: ActiveMutator::SourceLocation

Defined in:
lib/active_mutator/source_location.rb

Overview

1-based line/column (never 0 — the Stryker schema rejects 0) for an exclusive byte range within a source string.

Class Method Summary collapse

Class Method Details

.locate(source, byte_range) ⇒ Object 



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# File 'lib/active_mutator/source_location.rb', line 5

def self.locate(source, byte_range)
  {
    start: position(source, byte_range.begin),
    end: position(source, byte_range.end)
  }
end

.position(source, offset) ⇒ Object 



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# File 'lib/active_mutator/source_location.rb', line 12

def self.position(source, offset)
  prefix = source.byteslice(0, offset)
  last_newline = prefix.rindex("\n")
  {
    line: prefix.count("\n") + 1,
    column: offset - (last_newline ? last_newline + 1 : 0) + 1
  }
end