This is a container module for wrappers of templating engines and handles lazy requiring of needed engines.
# File lib/innate/view.rb, line 24 def compile(string) return yield(string.to_s) unless View.options.cache string = string.to_s checksum = Digest::MD5.hexdigest(string) Cache.view[checksum] ||= yield(string) end
# File lib/innate/view.rb, line 31 def exts_of(engine) name = engine.to_s ENGINE.reject{|ext, klass| klass != name }.keys end
Try to obtain given engine by its registered name.
# File lib/innate/view.rb, line 37 def get(engine) if klass = TEMP[engine] return klass elsif klass = ENGINE[engine] TEMP[engine] = obtain(klass) else TEMP[engine] = obtain(engine, View) end end
We need to put this in a Mutex because simultanous calls for the same class will cause race conditions and one call may return the wrong class on the first request (before TEMP is set). No mutex is used in Fiber environment, see Innate::State and subclasses.
# File lib/innate/view.rb, line 51 def obtain(klass, root = Object) Innate.sync do view_name = /^#{klass.to_s.downcase.dup.delete('_')}$/ if view = View.constants.grep(view_name).first root.const_get(view) else raise(NameError, "View #{klass} not found") end end end
Reads the specified view template from the filesystem. When the read_cache option is enabled, templates will be cached to prevent unnecessary filesystem reads in the future.
@example usage
View.read('some/file.xhtml')
@param [to_str] view
@api private @see Action#render
# File lib/innate/view.rb, line 74 def read(view) return Cache.view[view] ||= ::File.read(view) if View.options.read_cache ::File.read(view) end
Register given templating engine wrapper and extensions for later usage.
name : the class name of the templating engine wrapper exts : any number of arguments will be turned into strings via to_s
that indicate which filename-extensions the templates may have.
# File lib/innate/view.rb, line 84 def register(klass, *exts) exts.each do |ext| ext = ext.to_s engine = ENGINE[ext] Log.warn("overwriting %p, was set to %p" % [ext, engine]) if engine ENGINE[ext] = klass end end
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