Class: Tracetool::IOS::IOSTraceScanner

Inherits:
Object
  • Object
show all
Defined in:
lib/tracetool/ios/scanner.rb

Overview

launches atos

Instance Method Summary collapse

Instance Method Details

#parse(trace) ⇒ Array

Stack trace line consists of numerous whitespace separated columns. First three always are:

  • frame #

  • binary name

  • address

Parameters:

  • trace (String) —

    string containing stack trace

Returns:

  • (Array) —

    containing (%binary_name%, %address%) pairs



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# File 'lib/tracetool/ios/scanner.rb', line 13

def parse(trace)
  trace.split("\n").map do |line|
    parse_line(line)
  end
end

#parse_line(line) ⇒ Object

Parse trace line from trace. Which usualy looks like this:

3   My Module Name      0x0000000102d6e9f4 My Module Name + 5859828

We need to fetch two values: ‘My Module Name’ and ‘0x0000000102d6e9f4’.



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# File 'lib/tracetool/ios/scanner.rb', line 22

def parse_line(line)
  parts = line.split(' ')
  parts.shift # Frame number, not needed

  module_name = ''

  until parts.first.start_with?('0x')
    module_name += parts.shift
    module_name += ' '
  end

  address = parts.shift

  [module_name.chop, address]
end

#parser(files) ⇒ Tracetool::BaseTraceParser

Create parser for current trace format

Parameters:

  • files (Array) —

    list of files used in build. This files are used to match file entries from stack trace to real files

Returns:



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# File 'lib/tracetool/ios/scanner.rb', line 53

def parser(files)
  IOSTraceParser.new(files)
end

#process(trace, context) ⇒ Object 



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# File 'lib/tracetool/ios/scanner.rb', line 38

def process(trace, context)
  trace = parse(trace)
  desym = run_atos(context, trace.map(&:last).join('  '))
  # Add useful columns to unpacked trace
  mix(trace, desym.split("\n")).join("\n")
end

#run_atos(context, trace) ⇒ Object 



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# File 'lib/tracetool/ios/scanner.rb', line 45

def run_atos(context, trace)
  Pipe['atos', *AtosContext.new(context).to_args] << trace
end