class ActionDispatch::ExceptionWrapper
Attributes
backtrace_cleaner[R]
exception[R]
file[R]
line_number[R]
Public Class Methods
new(backtrace_cleaner, exception)
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# File lib/action_dispatch/middleware/exception_wrapper.rb, line 35 def initialize(backtrace_cleaner, exception) @backtrace_cleaner = backtrace_cleaner @exception = original_exception(exception) expand_backtrace if exception.is_a?(SyntaxError) || exception.cause.is_a?(SyntaxError) end
status_code_for_exception(class_name)
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# File lib/action_dispatch/middleware/exception_wrapper.rb, line 86 def self.status_code_for_exception(class_name) Rack::Utils.status_code(@@rescue_responses[class_name]) end
Public Instance Methods
application_trace()
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# File lib/action_dispatch/middleware/exception_wrapper.rb, line 50 def application_trace clean_backtrace(:silent) end
framework_trace()
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# File lib/action_dispatch/middleware/exception_wrapper.rb, line 54 def framework_trace clean_backtrace(:noise) end
full_trace()
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# File lib/action_dispatch/middleware/exception_wrapper.rb, line 58 def full_trace clean_backtrace(:all) end
rescue_template()
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# File lib/action_dispatch/middleware/exception_wrapper.rb, line 42 def rescue_template @@rescue_templates[@exception.class.name] end
source_extracts()
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# File lib/action_dispatch/middleware/exception_wrapper.rb, line 90 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
status_code()
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# File lib/action_dispatch/middleware/exception_wrapper.rb, line 46 def status_code self.class.status_code_for_exception(@exception.class.name) end
traces()
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# File lib/action_dispatch/middleware/exception_wrapper.rb, line 62 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 = { 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
Private Instance Methods
backtrace()
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# File lib/action_dispatch/middleware/exception_wrapper.rb, line 103 def backtrace Array(@exception.backtrace) end
clean_backtrace(*args)
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# File lib/action_dispatch/middleware/exception_wrapper.rb, line 115 def clean_backtrace(*args) if backtrace_cleaner backtrace_cleaner.clean(backtrace, *args) else backtrace end end
expand_backtrace()
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# File lib/action_dispatch/middleware/exception_wrapper.rb, line 142 def expand_backtrace @exception.backtrace.unshift( @exception.to_s.split("\n") ).flatten! end
extract_file_and_line_number(trace)
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# File lib/action_dispatch/middleware/exception_wrapper.rb, line 135 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
original_exception(exception)
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# File lib/action_dispatch/middleware/exception_wrapper.rb, line 107 def original_exception(exception) if @@rescue_responses.has_key?(exception.cause.class.name) exception.cause else exception end end
source_fragment(path, line)
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# File lib/action_dispatch/middleware/exception_wrapper.rb, line 123 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