Class: Dry::Validation::RuleCompiler

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(predicates) ⇒ RuleCompiler

Returns a new instance of RuleCompiler.



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# File 'lib/dry/validation/rule_compiler.rb', line 8

def initialize(predicates)
  @predicates = predicates
end

Instance Attribute Details

#predicates ⇒ Object (readonly)

Returns the value of attribute predicates.



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# File 'lib/dry/validation/rule_compiler.rb', line 6

def predicates
  @predicates
end

Instance Method Details

#call(ast) ⇒ Object 



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# File 'lib/dry/validation/rule_compiler.rb', line 12

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

#visit(node) ⇒ Object 



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# File 'lib/dry/validation/rule_compiler.rb', line 16

def visit(node)
  name, nodes = node
  send(:"visit_#{name}", nodes)
end

#visit_and(node) ⇒ Object 



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

def visit_and(node)
  left, right = node
  visit(left) & visit(right)
end

#visit_each(node) ⇒ Object 



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# File 'lib/dry/validation/rule_compiler.rb', line 36

def visit_each(node)
  name, rule = node
  Rule::Each.new(name, visit(rule))
end

#visit_key(node) ⇒ Object 



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# File 'lib/dry/validation/rule_compiler.rb', line 21

def visit_key(node)
  name, predicate = node
  Rule::Key.new(name, visit(predicate))
end

#visit_or(node) ⇒ Object 



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# File 'lib/dry/validation/rule_compiler.rb', line 51

def visit_or(node)
  left, right = node
  visit(left) | visit(right)
end

#visit_predicate(node) ⇒ Object 



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

def visit_predicate(node)
  name, args = node
  predicates[name].curry(*args)
end

#visit_set(node) ⇒ Object 



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# File 'lib/dry/validation/rule_compiler.rb', line 31

def visit_set(node)
  name, rules = node
  Rule::Set.new(name, call(rules))
end

#visit_val(node) ⇒ Object 



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# File 'lib/dry/validation/rule_compiler.rb', line 26

def visit_val(node)
  name, predicate = node
  Rule::Value.new(name, visit(predicate))
end