Class: Journey::Routes

Inherits:
Object
  • Object
show all
Includes:
Enumerable
Defined in:
lib/journey/routes.rb

Overview

The Routing table. Contains all routes for a system. Routes can be added to the table by calling Routes#add_route

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Routes

Returns a new instance of Routes.



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# File 'lib/journey/routes.rb', line 10

def initialize
  @routes             = []
  @named_routes       = {}
  @ast                = nil
  @partitioned_routes = nil
  @simulator          = nil
end

Instance Attribute Details

#named_routes ⇒ Object (readonly)

Returns the value of attribute named_routes.



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# File 'lib/journey/routes.rb', line 8

def named_routes
  @named_routes
end

#routes ⇒ Object (readonly)

Returns the value of attribute routes.



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# File 'lib/journey/routes.rb', line 8

def routes
  @routes
end

Instance Method Details

#add_route(app, path, conditions, defaults, name = nil) ⇒ Object

Add a route to the routing table.



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# File 'lib/journey/routes.rb', line 58

def add_route app, path, conditions, defaults, name = nil
  route = Route.new(name, app, path, conditions, defaults)

  route.precedence = routes.length
  routes << route
  named_routes[name] = route if name
  clear_cache!
  route
end

#ast ⇒ Object 



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# File 'lib/journey/routes.rb', line 41

def ast
  return @ast if @ast
  return if partitioned_routes.first.empty?

  asts = partitioned_routes.first.map { |r| r.ast }
  @ast = Nodes::Or.new(asts)
end

#clear ⇒ Object 



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# File 'lib/journey/routes.rb', line 31

def clear
  routes.clear
end

#each(&block) ⇒ Object 



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# File 'lib/journey/routes.rb', line 27

def each(&block)
  routes.each(&block)
end

#last ⇒ Object 



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# File 'lib/journey/routes.rb', line 23

def last
  @routes.last
end

#length ⇒ Object Also known as: size 



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# File 'lib/journey/routes.rb', line 18

def length
  @routes.length
end

#partitioned_routes ⇒ Object 



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# File 'lib/journey/routes.rb', line 35

def partitioned_routes
  @partitioned_routes ||= routes.partition { |r|
    r.path.anchored && r.ast.grep(Nodes::Symbol).all? { |n| n.default_regexp?  }
  }
end

#simulator ⇒ Object 



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# File 'lib/journey/routes.rb', line 49

def simulator
  return @simulator if @simulator

  gtg = GTG::Builder.new(ast).transition_table
  @simulator = GTG::Simulator.new gtg
end