Class: Proc

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

Overview

:nodoc:

Instance Attribute Summary collapse

Class Method Summary collapse

Instance Method Summary collapse

Instance Attribute Details

#source ⇒ Object 



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# File 'lib/proc_source.rb', line 201

def source
  @source ||= ProcSource.find(*self.source_descriptor)
end

Class Method Details

._load(str) ⇒ Object

Load from Marshal format.

p = Proc.new { false }
Marshal.load Marshal.dump p



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# File 'lib/proc_source.rb', line 227

def self._load(str)
  @source = Marshal.load(str)
  @source.to_proc
end

.from_string(str) ⇒ Object

Create a Proc object from a string of Ruby code. It’s assumed the string contains do; end or { }.

Proc.from_string("do; 2+2; end")



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# File 'lib/proc_source.rb', line 254

def self.from_string(str)
  eval "Proc.new #{str}"
end

.json_create(o) ⇒ Object 



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# File 'lib/proc_source.rb', line 241

def self.json_create(o)
  s, file, min, max = o['data']
  ps = ProcString.new s
  ps.file = file
  ps.lines = (min..max)
  ps.to_proc
end

Instance Method Details

#_dump(limit) ⇒ Object

Dump to Marshal format.

p = Proc.new { false }
Marshal.dump p



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# File 'lib/proc_source.rb', line 218

def _dump(limit)
  raise "can't dump proc, #source is nil" if source.nil?
  str = Marshal.dump(source)
  str
end

#file ⇒ Object 



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# File 'lib/proc_source.rb', line 210

def file
  source_descriptor
  @file
end

#line ⇒ Object 



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# File 'lib/proc_source.rb', line 205

def line
  source_descriptor
  @line
end

#source_descriptor ⇒ Object 



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# File 'lib/proc_source.rb', line 189

def source_descriptor
  @file ||= nil
  @line ||= nil
  unless @file && @line
    if md = /^#<Proc:0x[0-9A-Fa-f]+@(.+):(\d+)(.+?)?>$/.match(inspect)
      @file, @line = md.captures
    end
  end
  @line = @line.to_i
  [@file, @line]
end

#to_json(*args) ⇒ Object

Dump to JSON string



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# File 'lib/proc_source.rb', line 233

def to_json(*args)
  raise "can't serialize proc, #source is nil" if source.nil?
  {
    'json_class' => self.class.name,
    'data'       => [source.to_s, source.file, source.lines.min, source.lines.max]
  }.to_json#(*args)
end