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module FastGettext
class Cache
def initialize
@store = {}
reload!
end
def fetch(key)
translation = @current[key]
if translation.nil? # uncached
@current[key] = yield || false # TODO get rid of this false hack and cache :missing
else
translation
end
end
# TODO only used for tests, maybe if-else around it ...
def []=(key, value)
@current[key] = value
end
# key performance gain:
# - no need to lookup locale on each translation
# - no need to lookup text_domain on each translation
# - super-simple hash lookup
def switch_to(text_domain, locale)
@store[text_domain] ||= {}
@store[text_domain][locale] ||= {}
@store[text_domain][locale][""] = false # ignore gettext meta key when translating
@current = @store[text_domain][locale]
end
def delete(key)
@current.delete(key)
end
def reload!
@current = {}
@current[""] = false
end
end
end
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