Class: AppMap::Handler::Rails::Template::ResolverHandler

Inherits:
Object
  • Object
show all
Defined in:
lib/appmap/handler/rails/template.rb

Overview

Hooks the ActionView::Resolver methods find_all, find_all_anywhere. The resolver is used during template rendering to lookup the template file path from parameters such as the template name, prefix, and partial (boolean).

Class Method Summary collapse

Class Method Details

.handle_call(defined_class, hook_method, receiver, args) ⇒ Object

Handled as a normal function call.



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# File 'lib/appmap/handler/rails/template.rb', line 115

def handle_call(defined_class, hook_method, receiver, args)
  name, prefix, partial = args
  warn "Resolver: #{{ name: name, prefix: prefix, partial: partial }}" if LOG

  AppMap::Handler::Function.handle_call(defined_class, hook_method, receiver, args)
end

.handle_return(call_event_id, elapsed, return_value, exception) ⇒ Object

When the resolver returns, look to see if there is template rendering underway. If so, populate the template path. In all cases, add a TemplateMethod so that the template will be recorded in the classMap.



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# File 'lib/appmap/handler/rails/template.rb', line 125

def handle_return(call_event_id, elapsed, return_value, exception)
  renderer = Array(Thread.current[TEMPLATE_RENDERER]).last
  path_obj = Array(return_value).first
  
  warn "Resolver return: #{path_obj}" if LOG

  if path_obj
    path = if path_obj.respond_to?(:identifier) && path_obj.inspect.index('#<')
      path_obj.identifier
    else
      path_obj.inspect
    end
    path = path[Dir.pwd.length + 1..-1] if path.index(Dir.pwd) == 0
    AppMap.tracing.record_method(TemplateMethod.new(path))
    renderer.path ||= path if renderer
  end

  AppMap::Handler::Function.handle_return(call_event_id, elapsed, return_value, exception)
end