Exception: Calyx::Errors::DuplicateRule

Inherits:

ArgumentError

Object
ArgumentError
Calyx::Errors::DuplicateRule

show all

Defined in:: lib/calyx/errors.rb

Overview

Raised when a rule passed in via a context map conflicts with an existing rule in the grammar.

grammar = Calyx::Grammar.new do
  start :priority
  priority "(A)"
end

grammar.evaluate(priority: "(B)")
# => Calyx::Errors::DuplicateRule: :priority is already registered

Instance Method Summary collapse

#initialize(msg) ⇒ DuplicateRule constructor

A new instance of DuplicateRule.

Constructor Details

#initialize(msg) ⇒ `DuplicateRule`



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# File 'lib/calyx/errors.rb', line 30

def initialize(msg)
  super(":#{msg} is already registered")
end