Class: MightyJSON::Builder

Inherits:
Object
  • Object
show all
Includes:
Types
Defined in:
lib/mighty_json/builder.rb

Constant Summary collapse

NONE = 
Type::NONE

Instance Method Summary collapse

Methods included from Types

#any, #array, #array?, #boolean, #boolean?, #enum, #ignored, #literal, #literal?, #number, #number?, #numeric, #numeric?, #object, #object?, #optional, #prohibited, #string, #string?, #symbol, #symbol?

Constructor Details

#initialize(&block) ⇒ Builder

Returns a new instance of Builder.



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# File 'lib/mighty_json/builder.rb', line 8

def initialize(&block)
  @lets = {}
  instance_eval(&block)
end

Instance Method Details

#compile💪💪💪 ⇒ Object 



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# File 'lib/mighty_json/builder.rb', line 13

def compile💪💪💪
  Struct.new(*@lets.keys).new(
    *@lets.values.map do |type|
      Object.new.tap do |this|
        var = Variable.new
        v = var.cur
        eval <<~END
          def this.coerce(#{v})
            none = NONE
            #{type.compile(var: var, path: [])}
          end

          def this.=~(value)
            coerce(value)
            true
          rescue Error, IllegalTypeError, UnexpectedFieldError
            false
          end

          def this.===(value)
            coerce(value)
            true
          rescue Error, IllegalTypeError, UnexpectedFieldError
            false
          end
        END
      end
    end
  )
end

#let(name, type) ⇒ Object 



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# File 'lib/mighty_json/builder.rb', line 44

def let(name, type)
  @lets[name] = type
  define_singleton_method(name) { type }
end