Class: ReVIEW::Compiler::SyntaxElement

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name, type, argc, &block) ⇒ SyntaxElement

Returns a new instance of SyntaxElement.



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# File 'lib/review/compiler.rb', line 52

def initialize(name, type, argc, &block)
  @name = name
  @type = type
  @argc_spec = argc
  @checker = block
end

Instance Attribute Details

#name ⇒ Object (readonly)

Returns the value of attribute name.



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# File 'lib/review/compiler.rb', line 59

def name
  @name
end

Instance Method Details

#block_allowed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/review/compiler.rb', line 83

def block_allowed?
  @type == :block or @type == :optional
end

#block_required? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/review/compiler.rb', line 79

def block_required?
  @type == :block
end

#check_args(args) ⇒ Object 



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# File 'lib/review/compiler.rb', line 61

def check_args(args)
  unless @argc_spec === args.size
    raise CompileError, "wrong # of parameters (block command //#{@name}, expect #{@argc_spec} but #{args.size})"
  end
  if @checker
    @checker.call(*args)
  end
end

#min_argc ⇒ Object 



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# File 'lib/review/compiler.rb', line 70

def min_argc
  case @argc_spec
  when Range then @argc_spec.begin
  when Integer then @argc_spec
  else
    raise TypeError, "argc_spec is not Range/Integer: #{inspect}"
  end
end