Class: Rack::Stackflame

Inherits:
Object
  • Object
show all
Defined in:
lib/rack/stackflame.rb

Constant Summary collapse

ASSET_EXTNAMES = 
%w[js css png jpg jpeg].freeze

Instance Method Summary collapse

Constructor Details

#initialize(app, options = {}, &block) ⇒ Stackflame

Returns a new instance of Stackflame.



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# File 'lib/rack/stackflame.rb', line 5

def initialize(app, options = {}, &block)
  @app     = app
  @options = options.dup

  if block_given?
    @block = block
  else
    @block = -> (env) { not_asset_request?(env) }
  end
end

Instance Method Details

#call(env) ⇒ Object 



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# File 'lib/rack/stackflame.rb', line 16

def call(env)
  result = nil

  stackflame = ::Stackflame.new
  stackflame.run(@options) do
    result = @app.call(env)
  end

  if @block.call(env)
    stackflame.open_flamegraph
  end

  result
end