Class: Luoma::IfBlock

Inherits:
Markup
  • Object
show all
Defined in:
lib/luoma/tags/if.rb,
sig/luoma/tags/if.rbs

Constant Summary collapse

END_IF_BLOCK =

Returns:

  • (Set[String]) 

      
    

  




  
Instance Attribute Summary collapse

  



  
  
  
Attributes inherited from Markup

  
#blank, #tag_name, #token



  
    

      Class Method Summary
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      Instance Method Summary
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Methods inherited from Markup

  
#block_scope, #partial, #template_scope



  
Constructor Details

  
    

  

  
    #initialize(token, tag_name, expression, block)  ⇒ IfBlock 
  

  

  


  

    
Returns a new instance of IfBlock.


  





  
Parameters:


    
  
    
  • 
      
        token
      
      
        (t_token)
      
      
      
    
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  • 
      
        tag_name
      
      
        (String)
      
      
      
    
    • 
  
    
  • 
      
        expression
      
      
        (Expression)
      
      
      
    
    • 
  
    
  • 
      
        block
      
      
        (t_block)
      
      
      
    
    • 
  






  

    
      


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# File 'lib/luoma/tags/if.rb', line 82

def initialize(token, tag_name, expression, block)
  super(token)
  @tag_name = tag_name
  @expression = expression
  @block = block
  @blank = Luoma.blank_block?(block)
end

    		
  





  



  

    
Instance Attribute Details

    
      
      
      

  

  
    #block  ⇒ t_block  (readonly)
  

  

  


  

    
Returns the value of attribute block.


  





  

Returns:


    
  
    
  • 
      
      
        (t_block)
      
      
      
    
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# File 'lib/luoma/tags/if.rb', line 66

def block
  @block
end

    		
  





    
      
      
      

  

  
    #expression  ⇒ Expression  (readonly)
  

  

  


  

    
Returns the value of attribute expression.


  





  

Returns:





  

    
      


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# File 'lib/luoma/tags/if.rb', line 66

def expression
  @expression
end

    		
  





    
  



  

    
Class Method Details


    
      

  

  
    .parse(tag_name, parser)  ⇒ IfBlock 
  

  

  


  

    
(Parser) -> Markup


  





  
Parameters:


    
  
    
  • 
      
        tag_name
      
      
        (String)
      
      
      
    
    • 
  
    
  • 
      
        parser
      
      
        (Parser)
      
      
      
    
    • 
  




Returns:





  

    
      


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# File 'lib/luoma/tags/if.rb', line 71

def self.parse(tag_name, parser)
  parser.eat(:token_tag_start)
  parser.skip_whitespace_control
  token = parser.eat(:token_tag_name)
  parser.expect_expression
  expression = parser.parse_expression
  parser.carry_whitespace_control
  parser.eat(:token_tag_end)
  IfBlock.new(token, tag_name, expression, parser.parse_block(stop: END_IF_BLOCK))
end

    		
  





    
  


  

    
Instance Method Details


    
      

  

  
    #children(static_context)  ⇒ Array[Markup] 
  

  

  


  

    
(RenderContext) -> Array


  





  
Parameters:




Returns:





  

    
      


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# File 'lib/luoma/tags/if.rb', line 96

def children(static_context)
  @block.grep_v(String) #: Array[Markup]
end

    		
  





    
      

  

  
    #expressions  ⇒ ::Array[Expression] 
  

  

  


  

    
() -> Array


  





  

Returns:





  

    
      


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# File 'lib/luoma/tags/if.rb', line 101

def expressions
  [@expression]
end

    		
  





    
      

  

  
    #filter_strings  ⇒ void 
  

  

  


  

    
This method returns an undefined value.


  





  



  

    
      


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# File 'lib/luoma/tags/if.rb', line 105

def filter_strings
  @block.filter! { |node| !node.is_a?(String) }
end

    		
  





    
      

  

  
    #render(context, buffer)  ⇒ Object 
  

  

  


  

    

  





  
Signature:


    
  
    
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    (RenderContext, String) -> void
    
      
    
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# File 'lib/luoma/tags/if.rb', line 91

def render(context, buffer)
  Luoma.render_block(@block, context, buffer)
end