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Versions: 105
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Contents
module CC
module Analyzer
class SourceExtractor
InvalidLocation = Class.new(StandardError)
def initialize(source)
@source = source
end
def extract(location)
validate_location(location)
if (lines = location["lines"])
extract_from_lines(lines)
elsif (positions = location["positions"])
extract_from_positions(positions)
end
end
private
attr_reader :source
def validate_location(location)
validator = IssueValidations::LocationFormatValidation::Validator.new(location)
unless validator.valid?
raise InvalidLocation, validator.message
end
end
def extract_from_lines(lines)
begin_index = lines.fetch("begin") - 1
end_index = lines.fetch("end") - 1
range = (begin_index..end_index)
source.each_line.with_object("").with_index do |(source_line, memo), index|
memo << source_line if range.include?(index)
end
end
def extract_from_positions(positions)
positions = convert_to_offsets(positions)
begin_offset = positions.fetch("begin").fetch("offset")
end_offset = positions.fetch("end").fetch("offset")
length = end_offset - begin_offset
source[begin_offset, length + 1]
end
def convert_to_offsets(positions)
positions.each_with_object({}) do |(key, value), memo|
memo[key] =
if value.key?("offset")
value
else
{
"offset" => to_offset(value["line"] - 1, value["column"] - 1),
}
end
end
end
def to_offset(line, column, offset = 0)
source.each_line.with_index do |source_line, index|
offset +=
if line == index
column
else
source_line.length
end
break if index >= line
end
offset
end
end
end
end
Version data entries
105 entries across 105 versions & 2 rubygems