Module: Kernel

Defined in:
opal/opal/rspec/fixes/opal/kernel.rb

Instance Method Summary collapse

Instance Method Details

#caller ⇒ Object

RSpec tries to add context with this. something like this: https://github.com/stacktracejs/stacktrace.js would be better than this but avoiding adding an NPM dependency for now



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# File 'opal/opal/rspec/fixes/opal/kernel.rb', line 36

def caller
  %x{
    function getErrorObject(){
        try { throw Error('') } catch(err) { return err; }
    }


    var err = getErrorObject();
  }
  stack = `err.stack`
  caller_lines = stack.split("\n")[4..-1]
  caller_lines.reject! { |l| l.strip.empty? }

  result_formatter = lambda do |filename, line, method=nil|
    "#{filename}:#{line} in `(#{method ? method : 'unknown method'})'"
  end

  caller_lines.map do |raw_line|
    if match = /\s*at (.*) \((\S+):(\d+):\d+/.match(raw_line)
      method, filename, line = match.captures
      result_formatter[filename, line, method]
    elsif match = /\s*at (\S+):(\d+):\d+/.match(raw_line)
      filename, line = match.captures
      result_formatter[filename, line]
      # catch phantom/no 2nd line/col #
    elsif match = /\s*at (.*) \((\S+):(\d+)/.match(raw_line)
      method, filename, line = match.captures
      result_formatter[filename, line, method]
    elsif match = /\s*at (.*):(\d+)/.match(raw_line)
      filename, line = match.captures
      result_formatter[filename, line]
      # Firefox - Opal.modules["rspec/core/metadata"]/</</</</def.$populate@http://192.168.59.103:9292/assets/rspec/core/metadata.self.js?body=1:102:13
    elsif match = /(.*?)@(\S+):(\d+):\d+/.match(raw_line)
      method, filename, line = match.captures
      result_formatter[filename, line, method]
      # webkit - http://192.168.59.103:9292/assets/opal/rspec/sprockets_runner.js:45117:314
    elsif match = /(\S+):(\d+):\d+/.match(raw_line)
      filename, line = match.captures
      result_formatter[filename, line]
    else
      "#{filename}:-1 in `(can't parse this stack trace)`"
    end
  end
end

#clone ⇒ Object 



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# File 'opal/opal/rspec/fixes/opal/kernel.rb', line 23

def clone
  copy = self.class.allocate

  copy.copy_instance_variables(self)
  copy.copy_singleton_methods(self)
  copy.initialize_clone(self)

  copy
end

#copy_singleton_methods(other) ⇒ Object 



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# File 'opal/opal/rspec/fixes/opal/kernel.rb', line 3

def copy_singleton_methods(other)
  %x{
        var name;
        if (other.hasOwnProperty('$$meta')) {
          var other_singleton_class_proto = Opal.get_singleton_class(other).$$proto;
          var self_singleton_class_proto = Opal.get_singleton_class(self).$$proto;
          for (name in other_singleton_class_proto) {
            if (name.charAt(0) === '$' && other_singleton_class_proto.hasOwnProperty(name)) {
              self_singleton_class_proto[name] = other_singleton_class_proto[name];
            }
          }
        }
        for (name in other) {
          if (name.charAt(0) === '$' && name.charAt(1) !== '$' && other.hasOwnProperty(name)) {
            self[name] = other[name];
          }
        }
      }
end