Class: IRB::Source

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

Defined Under Namespace

Classes: Reflector

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(buffer = []) ⇒ Source

Returns a new instance of Source.



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# File 'lib/irb/source.rb', line 13

def initialize(buffer = [])
  @buffer = buffer
end

Instance Attribute Details

#buffer ⇒ Object (readonly)

Returns the value of attribute buffer.



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# File 'lib/irb/source.rb', line 11

def buffer
  @buffer
end

Instance Method Details

#<<(source) ⇒ Object

Adds a source line to the buffer and flushes the cached reflection.



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# File 'lib/irb/source.rb', line 18

def <<(source)
  source = source.rstrip
  unless source.empty?
    @reflection = nil
    @buffer << source
  end
end

#code_block? ⇒ Boolean

Reflects on the accumulated source to see if it’s a valid code block.

Returns:

  • (Boolean) 


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# File 'lib/irb/source.rb', line 46

def code_block?
  reflect.code_block?
end

#level ⇒ Object

Reflects on the accumulated source and returns the current code block indentation level.



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# File 'lib/irb/source.rb', line 41

def level
  reflect.level
end

#pop ⇒ Object

Removes the last line from the buffer and flushes the cached reflection.



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# File 'lib/irb/source.rb', line 27

def pop
  @reflection = nil
  @buffer.pop
end

#reflect ⇒ Object

Returns a Reflector for the accumulated source and caches it.



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# File 'lib/irb/source.rb', line 67

def reflect
  @reflection ||= Reflector.new(source)
end

#source ⇒ Object Also known as: to_s

Returns the accumulated source as a string, joined by newlines.



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# File 'lib/irb/source.rb', line 33

def source
  @buffer.join("\n")
end

#syntax_error ⇒ Object

Reflects on the accumulated source and returns the actual syntax error message if one occurs.



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# File 'lib/irb/source.rb', line 62

def syntax_error
  reflect.syntax_error
end

#syntax_error? ⇒ Boolean

Reflects on the accumulated source to see if it contains a syntax error.

Returns:

  • (Boolean) 


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# File 'lib/irb/source.rb', line 51

def syntax_error?
  reflect.syntax_error?
end

#terminate? ⇒ Boolean

Reflects on the accumulated source to see if it contains a terminate signal.

Returns:

  • (Boolean) 


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# File 'lib/irb/source.rb', line 56

def terminate?
  reflect.terminate?
end