class Seahorse::Client::ParamValidator

def shape(shape, value, errors, context)
  case shape
  when Model::Shapes::Structure
    structure(shape, value, errors, context)
  when Model::Shapes::List
    list(shape, value, errors, context)
  when Model::Shapes::Map
    map(shape, value, errors, context)
  when Model::Shapes::String
    unless value.is_a?(String)
      errors << "expected #{context} to be a string"
    end
  when Model::Shapes::Integer
    unless value.is_a?(Integer)
      errors << "expected #{context} to be an integer"
    end
  when Model::Shapes::Float
    unless value.is_a?(Float)
      errors << "expected #{context} to be a float"
    end
  when Model::Shapes::Timestamp
    unless value.is_a?(Time)
      errors << "expected #{context} to be a Time object"
    end
  when Model::Shapes::Boolean
    unless [true, false].include?(value)
      errors << "expected #{context} to be true or false"
    end
  when Model::Shapes::Blob
    unless io_like?(value) or value.is_a?(String)
      errors << "expected #{context} to be a string or IO object"
    end
  end
end