Class: Lab42::BasicConstraints::Constraint

Inherits:
Object
  • Object
show all
Defined in:
lib/lab42/basic_constraints/constraint.rb,
lib/lab42/basic_constraints/constraints/int.rb

Direct Known Subclasses

IntConstraint

Defined Under Namespace

Classes: IntConstraint

Instance Attribute Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#default(&blk) ⇒ Object (readonly)

Returns the value of attribute default.



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# File 'lib/lab42/basic_constraints/constraint.rb', line 8

def default
  @default
end

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/lab42/basic_constraints/constraint.rb', line 8

def name
  @name
end

Instance Method Details

#call(value) ⇒ Object 



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# File 'lib/lab42/basic_constraints/constraint.rb', line 10

def call value
  return Result.ok if @constraint.(value)
  Result.error("#{_show value} is not a legal #{@name}", error: Lab42::BasicConstraints::ConstraintError)
end

#set_default(value = nil, &blk) ⇒ Object 



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# File 'lib/lab42/basic_constraints/constraint.rb', line 29

def set_default value=nil, &blk
  @default = 
    if value
      value
    else
      blk
    end
  @has_default = true
  self
end