Class: DataModel::Builtin::Array

Inherits:
Type
  • Object
show all
Includes:
Errors
Defined in:
lib/data_model/builtin/array.rb

Defined Under Namespace

Classes: Arguments

Constant Summary

Constants included from Errors

Errors::TClassCtx, Errors::TClassValueCtx, Errors::TErrorMessageBuilder, Errors::TErrorMessages, Errors::TFormatCtx, Errors::TSetCtx, Errors::TTemporal, Errors::TWithinCtx, Errors::TWithinTemporalCtx

Constants inherited from Type

Type::TArguments, Type::TTypeParams, Type::TTypeResult

Instance Attribute Summary

Attributes inherited from Type

#type_args

Instance Method Summary collapse

Methods included from Errors

#blank_error, #blank_error_message, #coerce_error, #coerce_error_message, #earliest_error, #early_error_message, error_messages, #exclusion_error, #exclusion_error_message, #extra_keys_error, #extra_keys_error_message, #format_error, #format_error_message, #inclusion_error, #inclusion_error_message, #late_error_message, #latest_error, #max_error, #max_error_message, #min_error, #min_error_message, #missing_error, #missing_error_message, #type_error, #type_error_message

Methods inherited from Type

#initialize, #instantiate, #invoke

Constructor Details

This class inherits a constructor from DataModel::Type

Instance Method Details

#child_type ⇒ Object 



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# File 'lib/data_model/builtin/array.rb', line 30

def child_type
  if @child_type.nil?
    raise "children not configured"
  end

  return @child_type
end

#configure(params) ⇒ Object 



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# File 'lib/data_model/builtin/array.rb', line 17

def configure(params)
  if params.first.is_a?(Array)
    params = params.first
  end

  params = T.cast(params, TSchema)
  node = Scanner.scan(params)
  type = instantiate(node.type, args: node.args, params: node.params)

  @child_type = T.let(type, T.nilable(Type))
end

#read(val, coerce: false) ⇒ Object 



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# File 'lib/data_model/builtin/array.rb', line 39

def read(val, coerce: false)
  args = Arguments.new(type_args)
  err = Error.new

  if val.nil? && !args.optional
    err.add(missing_error(Array))
    return [val, err]
  end

  if coerce && args.wrap_single_value
    val = Array(val)
  end

  if !val.is_a?(Array)
    err.add(type_error(Array, val))
    return [val, err]
  end

  coerced = []

  for i in 0...val.length
    child_val = T.let(val[i], Object)
    child, child_err = child_type.read(child_val, coerce:)
    if child_err
      err.merge_child(i.to_s.to_sym, child_err)
    end
    coerced << child
  end

  result = coerce ? coerced : val

  return [result, err]
end