Class: Ree::Contracts::ArgContracts::ArrayOf

Inherits:
Object
  • Object
show all
Extended by:
Squarable
Includes:
Truncatable
Defined in:
lib/ree/contracts/arg_contracts/array_of.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Squarable

[]

Methods included from Truncatable

#truncate

Constructor Details

#initialize(*contracts) ⇒ ArrayOf

Returns a new instance of ArrayOf.



11
12
13
14
15
16
17
# File 'lib/ree/contracts/arg_contracts/array_of.rb', line 11

def initialize(*contracts)
  if contracts.size != 1
    raise BadContractError, 'ArrayOf should accept exactly one contract'
  end

  @validator = Validators.fetch_for(contracts.first)
end

Instance Attribute Details

#validatorObject (readonly)

Returns the value of attribute validator.



9
10
11
# File 'lib/ree/contracts/arg_contracts/array_of.rb', line 9

def validator
  @validator
end

Instance Method Details

#message(value, name, lvl = 1) ⇒ Object



28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
# File 'lib/ree/contracts/arg_contracts/array_of.rb', line 28

def message(value, name, lvl = 1)
  unless value.is_a?(Array)
    return "expected Array, got #{value.class} => #{truncate(value.inspect)}"
  end

  errors = []
  sps = "  " * lvl

  value.each_with_index do |val, idx|
    next if validator.call(val)

    msg = validator.message(val, "#{name}[#{idx}]", lvl + 1)
    errors << "\n\t#{sps} - #{name}[#{idx}]: #{msg}"

    if errors.size > 3
      errors << "\n\t#{sps} - ..."
      break
    end
  end

  errors.join
end

#to_sObject



24
25
26
# File 'lib/ree/contracts/arg_contracts/array_of.rb', line 24

def to_s
  "ArrayOf[#{validator.to_s}]"
end

#valid?(value) ⇒ Boolean

Returns:

  • (Boolean)


19
20
21
22
# File 'lib/ree/contracts/arg_contracts/array_of.rb', line 19

def valid?(value)
  value.is_a?(Array) &&
    value.all?(&validator.method(:call))
end