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Contents
# frozen_string_literal: true
require 'json'
module RuboCop
# Converts RuboCop objects to and from the serialization format JSON.
class CachedData
def initialize(filename)
@filename = filename
end
def from_json(text)
deserialize_offenses(JSON.parse(text))
end
def to_json(offenses)
JSON.dump(offenses.map { |o| serialize_offense(o) })
end
private
def serialize_offense(offense)
{
# Calling #to_s here ensures that the serialization works when using
# other json serializers such as Oj. Some of these gems do not call
# #to_s implicitly.
severity: offense.severity.to_s,
location: {
begin_pos: offense.location.begin_pos,
end_pos: offense.location.end_pos
},
message: message(offense),
cop_name: offense.cop_name,
status: :uncorrected
}
end
def message(offense)
# JSON.dump will fail if the offense message contains text which is not
# valid UTF-8
offense.message.scrub
end
# Restore an offense object loaded from a JSON file.
def deserialize_offenses(offenses)
source_buffer = Parser::Source::Buffer.new(@filename)
source_buffer.source = File.read(@filename, encoding: Encoding::UTF_8)
offenses.map! do |o|
location = Parser::Source::Range.new(source_buffer,
o['location']['begin_pos'],
o['location']['end_pos'])
Cop::Offense.new(o['severity'], location,
o['message'],
o['cop_name'], o['status'].to_sym)
end
end
end
end
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6,776 entries across 6,770 versions & 24 rubygems