CompiledTemplates modules hold methods that have been compiled. Templates are compiled into these methods so that they do not need to be read and parsed for each request.

Each template may be compiled into one or more methods. Each method accepts a given set of parameters which is used to implement local assigns passing.

To use a compiled template module, create a new instance and include it into the class in which you want the template to be rendered.

Methods
C
F
M
N
S
W
Attributes
[R] method_names
Class Public methods
new()

Source: show 

# File rails/actionpack/lib/action_view/compiled_templates.rb, line 16
def initialize
  @method_names = Hash.new do |hash, key|
    hash[key] = "__compiled_method_#{(hash.length + 1)}"
  end
  @mtimes = {}
end
Instance Public methods
compile_source(identifier, arg_names, source, initial_line_number = 0, file_name = nil)

Compile the provided source code for the given argument names and with the given initial line number. The identifier should be unique to this source.

The file_name, if provided will appear in backtraces. If not provded, the file_name defaults to the identifier.

This method will return the selector for the compiled version of this method.

Source: show 

# File rails/actionpack/lib/action_view/compiled_templates.rb, line 47
def compile_source(identifier, arg_names, source, initial_line_number = 0, file_name = nil)
  file_name ||= identifier
  name = method_names[full_key(identifier, arg_names)]
  arg_desc = arg_names.empty? ? '' : "(#{arg_names * ', '})"
  fake_file_name = "#{file_name}#{arg_desc}" # Include the arguments for this version (for now)
  
  method_def = wrap_source(name, arg_names, source)
  
  begin
    module_eval(method_def, fake_file_name, initial_line_number)
    @mtimes[full_key(identifier, arg_names)] = Time.now
  rescue Exception => e  # errors from compiled source
    e.blame_file! identifier
    raise
  end
  name
end
compiled?(identifier, arg_names)
full_key(identifier, arg_names)

Return the full key for the given identifier and argument names

Source: show 

# File rails/actionpack/lib/action_view/compiled_templates.rb, line 24
def full_key(identifier, arg_names)
  [identifier, arg_names]
end
mtime(identifier, arg_names)

Return the time at which the method for the given identifier and argument names was compiled.

Source: show 

# File rails/actionpack/lib/action_view/compiled_templates.rb, line 36
def mtime(identifier, arg_names)
  @mtimes[full_key(identifier, arg_names)]
end
selector(identifier, arg_names)

Return the selector for this method or nil if it has not been compiled

Also aliased as: compiled?

Source: show 

# File rails/actionpack/lib/action_view/compiled_templates.rb, line 29
def selector(identifier, arg_names)
  key = full_key(identifier, arg_names)
  method_names.key?(key) ? method_names[key] : nil
end
wrap_source(name, arg_names, source)

Wrap the provided source in a def … end block.

Source: show 

# File rails/actionpack/lib/action_view/compiled_templates.rb, line 66
def wrap_source(name, arg_names, source)
  "def #{name}(#{arg_names * ', '})\n#{source}\nend"
end