class GraphQL::Language::Parser

# File lib/graphql/language/parser.rb, line 32
def initialize(graphql_str, filename: nil, trace: Tracing::NullTrace, max_tokens: nil)
  if graphql_str.nil?
    raise GraphQL::ParseError.new("No query string was present", nil, nil, nil)
  end
  @lexer = Lexer.new(graphql_str, filename: filename, max_tokens: max_tokens)
  @graphql_str = graphql_str
  @filename = filename
  @trace = trace
  @dedup_identifiers = false
  @lines_at = nil
end

# File lib/graphql/language/parser.rb, line 17
def parse(graphql_str, filename: nil, trace: Tracing::NullTrace, max_tokens: nil)
  self.new(graphql_str, filename: filename, trace: trace, max_tokens: max_tokens).parse
end

# File lib/graphql/language/parser.rb, line 21
def parse_file(filename, trace: Tracing::NullTrace)
  if cache
    cache.fetch(filename) do
      parse(File.read(filename), filename: filename, trace: trace)
    end
  else
    parse(File.read(filename), filename: filename, trace: trace)
  end
end

# File lib/graphql/language/parser.rb, line 68
def column_at(pos)
  next_line_idx = lines_at.bsearch_index { |l| l >= pos } || @lines_at.size
  line_start = next_line_idx == 0 ? 0 : @lines_at[next_line_idx - 1] + 1
  if @graphql_str.ascii_only?
    pos - line_start + 1
  else
    @graphql_str.byteslice(line_start, pos - line_start).force_encoding(Encoding::UTF_8).length + 1
  end
end

# File lib/graphql/language/parser.rb, line 59
def line_at(pos)
  line = lines_at.bsearch_index { |l| l >= pos }
  if line.nil?
    @lines_at.size + 1
  else
    line + 1
  end
end

# File lib/graphql/language/parser.rb, line 44
def parse
  @document ||= begin
    @trace.parse(query_string: @graphql_str) do
      document
    end
  rescue SystemStackError
    raise GraphQL::ParseError.new("This query is too large to execute.", nil, nil, @query_str, filename: @filename)
  end
end

# File lib/graphql/language/parser.rb, line 54
def tokens_count
  parse
  @lexer.tokens_count
end