Module: Must

Defined in:
lib/must.rb,
lib/must/rule.rb,
lib/must/differ.rb,
lib/must/version.rb,
lib/must/struct_info.rb

Overview

Must

Defined Under Namespace

Classes: ClassMismatch, Differ, Invalid, Rule, StructInfo, StructMismatch, ValueMismatch

Constant Summary collapse

Boolean =

Original Type

Class.new
VERSION = 
"0.3.3"

Instance Method Summary collapse

Instance Method Details

#must(*args, &block) ⇒ Object 



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# File 'lib/must.rb', line 18

def must(*args, &block)
  if args.size > 0
    # Fast type checking
    args.each{|klass|
      return self if self.class == klass  # 1.must(Fixnum)
      return self if self       == klass  # flag.must(true, false)
      return self if klass == Boolean and (self == true or self == false)
    }

    # Or, check it in a slow but strict way
    Rule.new(self).be.kind_of(*args, &block)
  else
    Rule.new(self)
  end
end