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# frozen_string_literal: true
module SyntaxSuggest
# Ripper.lex is not guaranteed to lex the entire source document
#
# This class guarantees the whole document is lex-ed by iteratively
# lexing the document where ripper stopped.
#
# Prism likely doesn't have the same problem. Once ripper support is removed
# we can likely reduce the complexity here if not remove the whole concept.
#
# Example usage:
#
# lex = LexAll.new(source: source)
# lex.each do |value|
# puts value.line
# end
class LexAll
include Enumerable
def initialize(source:, source_lines: nil)
@lex = self.class.lex(source, 1)
lineno = @lex.last[0][0] + 1
source_lines ||= source.lines
last_lineno = source_lines.length
until lineno >= last_lineno
lines = source_lines[lineno..]
@lex.concat(
self.class.lex(lines.join, lineno + 1)
)
lineno = @lex.last[0].first + 1
end
last_lex = nil
@lex.map! { |elem|
last_lex = LexValue.new(elem[0].first, elem[1], elem[2], elem[3], last_lex)
}
end
if SyntaxSuggest.use_prism_parser?
def self.lex(source, line_number)
Prism.lex_compat(source, line: line_number).value.sort_by { |values| values[0] }
end
else
def self.lex(source, line_number)
Ripper::Lexer.new(source, "-", line_number).parse.sort_by(&:pos)
end
end
def to_a
@lex
end
def each
return @lex.each unless block_given?
@lex.each do |x|
yield x
end
end
def [](index)
@lex[index]
end
def last
@lex.last
end
end
end
require_relative "lex_value"