Sha256: 32427745e116ae64e6cf7095bebb36bcb12ecc7fc8e675799a5cfffbafdb1a10
Contents?: true
Size: 1.69 KB
Versions: 10
Compression:
Stored size: 1.69 KB
Contents
require_relative 'c_file'
module Pry::CInternals
class ETagParser
SourceLocation = Struct.new(:file, :line, :symbol_type)
attr_reader :tags_path
attr_reader :ruby_source_folder
def self.symbol_map_for(tags_path, ruby_source_folder)
new(tags_path, ruby_source_folder).symbol_map
end
def initialize(tags_path, ruby_source_folder)
@tags_path = tags_path
@ruby_source_folder = ruby_source_folder
end
def symbol_map
parse_tagfile.each_with_object({}) do |c_file, hash|
# Append all the SourceLocations for a symbol to the same array
# e.g
# { "foo" => [SourceLocation_1] }
# { "foo" => [SourceLocation_2] }
# => { "foo" => [SourceLocation_1, SourceLocation_2] }
hash.merge!(c_file.symbol_map) { |key, old_val, new_val| old_val + new_val }
end
end
private
# \f\n indicates a new C file boundary in the etags file.
# The first line is the name of the C file, e.g foo.c
# The successive lines contain information about the symbols for that file.
def parse_tagfile
tagfile_sections = tagfile.split("\f\n")
tagfile_sections.shift # first section is blank
tagfile_sections.map do |c_file_section|
file_name, content = file_name_and_content_for(c_file_section)
CFile.new(file_name: file_name, content: content, ruby_source_folder: ruby_source_folder)
end
end
def file_name_and_content_for(c_file_section)
file_name, *content = c_file_section.lines
[clean_file_name(file_name), content]
end
def tagfile
File.read(tags_path)
end
def clean_file_name(file_name)
file_name.split(",").first
end
end
end
Version data entries
10 entries across 10 versions & 1 rubygems