Class: RVM::Functions::AssocGet

Inherits:
Function
  • Object
show all
Defined in:
lib/rvm/functions/association/assoc_get.rb

Overview

The AssocGet function is the Association (hash) equivalent to At function from the List. It get a Association as first argument and a index as the second. This index can be any kind of Class.

It can also be called with two arguments if :self is set as a variable and :self is a Association - in this case it is concidered a object function. The first passed parameter will be the key, the second the value.

Class Method Summary collapse

Methods inherited from Function

call, data_type, execargs, method_missing

Methods included from Plugin

#helper, #included, #plugin_host, #plugin_id, #register_for

Class Method Details

.execute(params, env) ⇒ Object 



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# File 'lib/rvm/functions/association/assoc_get.rb', line 39

def execute params, env
  if params.length == 2
    assoc = params.shift
    key = params.shift
    assoc[key]
  elsif params.length == 1 and (this = env.read_var_val(:self)).is_a?(RVM::Classes[:association]) 
    this[params.shift]
  else
    RVM::Classes[:error].new(1,"FUNCTION (#{self.class}) EXPECTS 2 or 1 ARGUMENTS BUT GOT #{params.length}")
  end
end

.signature ⇒ Object 



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# File 'lib/rvm/functions/association/assoc_get.rb', line 51

def signature
  [:any]
end