Class: Dry::Validation::InputProcessorCompiler

Inherits:
Object
  • Object
show all
Defined in:
lib/dry/validation/input_processor_compiler.rb

Direct Known Subclasses

Form, JSON, Sanitizer

Defined Under Namespace

Classes: Form, JSON, Sanitizer

Constant Summary collapse

DEFAULT_TYPE_NODE = 
[[:type, 'string']].freeze

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ InputProcessorCompiler

Returns a new instance of InputProcessorCompiler.



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# File 'lib/dry/validation/input_processor_compiler.rb', line 11

def initialize
  @type_compiler = Dry::Types::Compiler.new(Dry::Types)
end

Instance Attribute Details

#type_compiler ⇒ Object (readonly)

Returns the value of attribute type_compiler.



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# File 'lib/dry/validation/input_processor_compiler.rb', line 7

def type_compiler
  @type_compiler
end

Instance Method Details

#call(ast) ⇒ Object 



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# File 'lib/dry/validation/input_processor_compiler.rb', line 15

def call(ast)
  type_compiler.(hash_node(schema_ast(ast)))
end

#schema_ast(ast) ⇒ Object 



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# File 'lib/dry/validation/input_processor_compiler.rb', line 19

def schema_ast(ast)
  ast.map { |node| visit(node) }
end

#type(predicate, args) ⇒ Object 



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# File 'lib/dry/validation/input_processor_compiler.rb', line 98

def type(predicate, args)
  default = self.class::PREDICATE_MAP[:default]

  if predicate == :type?
    const = args[0]
    [:type, self.class::CONST_MAP[const] || Types.identifier(const)]
  else
    [:type, self.class::PREDICATE_MAP[predicate] || default]
  end
end

#visit(node, *args) ⇒ Object 



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# File 'lib/dry/validation/input_processor_compiler.rb', line 23

def visit(node, *args)
  send(:"visit_#{node[0]}", node[1], *args)
end

#visit_and(node, first = true) ⇒ Object 



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# File 'lib/dry/validation/input_processor_compiler.rb', line 46

def visit_and(node, first = true)
  if first
    name, type = node.map { |n| visit(n, false) }.uniq

    if name.is_a?(Array)
      type
    else
      [:key, [name, type]]
    end
  else
    result = node.map { |n| visit(n, first) }.uniq

    if result.size == 1
      result.first
    else
      (result - self.class::DEFAULT_TYPE_NODE).last
    end
  end
end

#visit_each(node, *args) ⇒ Object 



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# File 'lib/dry/validation/input_processor_compiler.rb', line 84

def visit_each(node, *args)
  array_node(visit(node, *args))
end

#visit_implication(node) ⇒ Object 



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# File 'lib/dry/validation/input_processor_compiler.rb', line 66

def visit_implication(node)
  key, types = node
  [:key, [visit(key), visit(types, false)]]
end

#visit_key(node, *args) ⇒ Object 



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# File 'lib/dry/validation/input_processor_compiler.rb', line 71

def visit_key(node, *args)
  _, other = node
  visit(other, *args)
end

#visit_or(node, *args) ⇒ Object 



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# File 'lib/dry/validation/input_processor_compiler.rb', line 41

def visit_or(node, *args)
  left, right = node
  [:sum, [visit(left, *args), visit(right, *args)]]
end

#visit_predicate(node) ⇒ Object 



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# File 'lib/dry/validation/input_processor_compiler.rb', line 88

def visit_predicate(node, *)
  id, args = node

  if id == :key?
    args[0][1]
  else
    type(id, args.map(&:last))
  end
end

#visit_schema(schema, *args) ⇒ Object 



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# File 'lib/dry/validation/input_processor_compiler.rb', line 37

def visit_schema(schema, *args)
  hash_node(schema.input_processor_ast(identifier))
end

#visit_set(node) ⇒ Object 



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# File 'lib/dry/validation/input_processor_compiler.rb', line 80

def visit_set(node, *)
  hash_node(node.map { |n| visit(n) })
end

#visit_type(type, *args) ⇒ Object 



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# File 'lib/dry/validation/input_processor_compiler.rb', line 27

def visit_type(type, *args)
  if type.is_a?(Types::Constructor)
    [:constructor, [type.primitive, type.fn]]
  elsif type.respond_to?(:rule)
    visit(type.rule.to_ast, *args)
  else
    DEFAULT_TYPE_NODE.first
  end
end

#visit_val(node, *args) ⇒ Object 



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# File 'lib/dry/validation/input_processor_compiler.rb', line 76

def visit_val(node, *args)
  visit(node, *args)
end