Module: RubyJsonParser::Evaluator

Extended by:
T::Sig
Defined in:
lib/ruby_json_parser/evaluator.rb

Overview

An evaluator for JSON. Creates Ruby structures based on an JSON AST.

Defined Under Namespace

Classes: Error

Class Method Summary collapse

Class Method Details

.eval(source) ⇒ Object

Raises:



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# File 'lib/ruby_json_parser/evaluator.rb', line 17

def eval(source)
  result = RubyJsonParser.parse(source)
  raise SyntaxError.new(result.errors) if result.err?

  eval_node(result.ast)
end

.eval_node(node) ⇒ Object 



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# File 'lib/ruby_json_parser/evaluator.rb', line 25

def eval_node(node)
  case node
  when AST::NullLiteralNode
    nil
  when AST::FalseLiteralNode
    false
  when AST::TrueLiteralNode
    true
  when AST::StringLiteralNode
    eval_string(node)
  when AST::NumberLiteralNode
    eval_number(node)
  when AST::ArrayLiteralNode
    eval_array(node)
  when AST::ObjectLiteralNode
    eval_object(node)
  else
    raise Error, "invalid AST node: #{node.class}"
  end
end