Class: Sinatra::TemplateCache

Inherits:
Object
  • Object
show all
Defined in:
lib/sinatra/base.rb

Overview

Extremely simple template cache implementation.

  • Not thread-safe.
  • Size is unbounded.
  • Keys are not copied defensively, and should not be modified after being passed to #fetch. More specifically, the values returned by key#hash and key#eql? should not change.

Implementation copied from Tilt::Cache.

Instance Method Summary collapse

Constructor Details

#initializeTemplateCache

Returns a new instance of TemplateCache.



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# File 'lib/sinatra/base.rb', line 949

def initialize
  @cache = {}
end

Instance Method Details

#clearObject

Clears the cache.



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# File 'lib/sinatra/base.rb', line 964

def clear
  @cache = {}
end

#fetch(*key) ⇒ Object

Caches a value for key, or returns the previously cached value. If a value has been previously cached for key then it is returned. Otherwise, block is yielded to and its return value which may be nil, is cached under key and returned.



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# File 'lib/sinatra/base.rb', line 957

def fetch(*key)
  @cache.fetch(key) do
    @cache[key] = yield
  end
end