class ActionDispatch::ExceptionWrapper

Experimental RBS support (using type sampling data from the type_fusion project).

# sig/action_dispatch/middleware/exception_wrapper.rbs

class ActionDispatch::ExceptionWrapper
  def source_fragment: (String path, Integer line) -> Hash
end

def self.status_code_for_exception(class_name)

def self.status_code_for_exception(class_name)
  Rack::Utils.status_code(@@rescue_responses[class_name])
end

def application_trace

def application_trace
  clean_backtrace(:silent)
end

def backtrace

def backtrace
  Array(@exception.backtrace)
end

def causes_for(exception)

def causes_for(exception)
  return enum_for(__method__, exception) unless block_given?
  yield exception while exception = exception.cause
end

def clean_backtrace(*args)

def clean_backtrace(*args)
  if backtrace_cleaner
    backtrace_cleaner.clean(backtrace, *args)
  else
    backtrace
  end
end

def exception_trace

def exception_trace
  trace = application_trace
  trace = framework_trace if trace.empty? && !silent_exceptions.include?(@exception_class_name)
  trace
end

def expand_backtrace

def expand_backtrace
  @exception.backtrace.unshift(
    @exception.to_s.split("\n")
  ).flatten!
end

def extract_file_and_line_number(trace)

def extract_file_and_line_number(trace)
  # Split by the first colon followed by some digits, which works for both
  # Windows and Unix path styles.
  file, line = trace.match(/^(.+?):(\d+).*$/, &:captures) || trace
  [file, line.to_i]
end

def framework_trace

def framework_trace
  clean_backtrace(:noise)
end

def full_trace

def full_trace
  clean_backtrace(:all)
end

def initialize(backtrace_cleaner, exception)

def initialize(backtrace_cleaner, exception)
  @backtrace_cleaner = backtrace_cleaner
  @exception = exception
  @exception_class_name = @exception.class.name
  @wrapped_causes = wrapped_causes_for(exception, backtrace_cleaner)
  expand_backtrace if exception.is_a?(SyntaxError) || exception.cause.is_a?(SyntaxError)
end

def rescue_response?

def rescue_response?
  @@rescue_responses.key?(exception.class.name)
end

def rescue_template

def rescue_template
  @@rescue_templates[@exception_class_name]
end

def source_extracts

def source_extracts
  backtrace.map do |trace|
    file, line_number = extract_file_and_line_number(trace)
    {
      code: source_fragment(file, line_number),
      line_number: line_number
    }
  end
end

def source_fragment(path, line)

Experimental RBS support (using type sampling data from the type_fusion project).

def source_fragment: (String path, Integer line) -> 10 | String | 11 | String | 12 | String | 13 | String | 14 | String | 15 | String

This signature was generated using 1 sample from 1 application.

def source_fragment(path, line)
  return unless Rails.respond_to?(:root) && Rails.root
  full_path = Rails.root.join(path)
  if File.exist?(full_path)
    File.open(full_path, "r") do |file|
      start = [line - 3, 0].max
      lines = file.each_line.drop(start).take(6)
      Hash[*(start + 1..(lines.count + start)).zip(lines).flatten]
    end
  end
end

def source_to_show_id

def source_to_show_id
  (traces[trace_to_show].first || {})[:id]
end

def status_code

def status_code
  self.class.status_code_for_exception(unwrapped_exception.class.name)
end

def trace_to_show

def trace_to_show
  if traces["Application Trace"].empty? && rescue_template != "routing_error"
    "Full Trace"
  else
    "Application Trace"
  end
end

def traces

def traces
  application_trace_with_ids = []
  framework_trace_with_ids = []
  full_trace_with_ids = []
  full_trace.each_with_index do |trace, idx|
    trace_with_id = {
      exception_object_id: @exception.object_id,
      id: idx,
      trace: trace
    }
    if application_trace.include?(trace)
      application_trace_with_ids << trace_with_id
    else
      framework_trace_with_ids << trace_with_id
    end
    full_trace_with_ids << trace_with_id
  end
  {
    "Application Trace" => application_trace_with_ids,
    "Framework Trace" => framework_trace_with_ids,
    "Full Trace" => full_trace_with_ids
  }
end

def unwrapped_exception

def unwrapped_exception
  if wrapper_exceptions.include?(@exception_class_name)
    exception.cause
  else
    exception
  end
end

def wrapped_causes_for(exception, backtrace_cleaner)

def wrapped_causes_for(exception, backtrace_cleaner)
  causes_for(exception).map { |cause| self.class.new(backtrace_cleaner, cause) }
end