class Mysql::ResultBase

# File lib/mysql/result.rb, line 15
def initialize(fields, protocol, record_class, **opts)
  @fields = fields
  @field_index = 0             # index of field
  @records = nil               # all records
  @index = 0                   # index of record
  @size = 0                    # retrieved record count
  @fieldname_with_table = nil
  @protocol = protocol
  @record_class = record_class
  @opts = opts
end

# File lib/mysql/result.rb, line 106
def data_seek(n)
  @index = n
  self
end

# File lib/mysql/result.rb, line 81
def each(**opts, &block)
  @index = 0
  return enum_for(:each, **opts) unless block
  while (rec = fetch(**opts))
    block.call rec
  end
  self
end

# File lib/mysql/result.rb, line 94
def each_hash(**opts, &block)
  @index = 0
  return enum_for(:each_hash, **opts) unless block
  while (rec = fetch_hash(**opts))
    block.call rec
  end
  self
end

# File lib/mysql/result.rb, line 44
def fetch(**)
  if @records && @index < @records.size
    @records[@index] = @records[@index].to_a unless @records[@index].is_a? Array
    @index += 1
    return @records[@index-1]
  end
  rec = @protocol.retr_record(@record_class)&.to_a
  return nil unless rec
  @records[@index] = rec if @records
  @index += 1
  @size += 1
  return rec
end

# File lib/mysql/result.rb, line 63
def fetch_hash(**opts)
  row = fetch(**opts)
  return nil unless row
  with_table = @opts.merge(opts)[:with_table]
  if with_table and @fieldname_with_table.nil?
    @fieldname_with_table = @fields.map{|f| [f.table, f.name].join(".")}
  end
  ret = {}
  @fields.each_index do |i|
    fname = with_table ? @fieldname_with_table[i] : @fields[i].name
    ret[fname] = row[i]
  end
  ret
end

# File lib/mysql/result.rb, line 34
def free
  # dummy
end

# File lib/mysql/result.rb, line 27
def retrieve
  @records = @protocol.retr_all_records(@record_class)
  @size = @records.size
end

# File lib/mysql/result.rb, line 119
def row_seek(n)
  ret = @index
  @index = n
  ret
end

# File lib/mysql/result.rb, line 112
def row_tell
  @index
end

# File lib/mysql/result.rb, line 127
def server_status
  @protocol.server_status
end