Class: Phlex::Compiler::MethodCompiler

Inherits:
Refract::MutationVisitor
  • Object
show all
Defined in:
lib/phlex/compiler/method_compiler.rb

Constant Summary collapse

ALLOWED_OWNERS = 

      
    

  







  
    

      Instance Method Summary
      collapse
    


    
  


  

  
Constructor Details

  
    

  

  
    #initialize(component)  ⇒ MethodCompiler 
  

  

  




  

    

Returns a new instance of MethodCompiler.



  





  



  

    
      


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# File 'lib/phlex/compiler/method_compiler.rb', line 7

def initialize(component)
  super()
  @component = component
  @preamble = []
  @optimized = false
end


    		
  





  




  

    
Instance Method Details


    
      

  

  
    #compile(node)  ⇒ Object 
  

  

  




  

    
      


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# File 'lib/phlex/compiler/method_compiler.rb', line 14

def compile(node)
  tree = visit(node)

  if @optimized
    Compactor.new.visit(
      tree
    )
  else
    nil
  end
end


    		
  





    
      

  

  
    #compile_block_body_node(node)  ⇒ Object 
  

  

  




  

    
      


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# File 'lib/phlex/compiler/method_compiler.rb', line 218

def compile_block_body_node(node)
  node => Refract::StatementsNode | Refract::BeginNode

  Refract::StatementsNode.new(
    body: [
      Refract::IfNode.new(
        inline: false,
        predicate: Refract::CallNode.new(
          receiver: Refract::SelfNode.new,
          name: :==,
          arguments: Refract::ArgumentsNode.new(
            arguments: [
              Refract::LocalVariableReadNode.new(
                name: self_local
              ),
            ]
          )
        ),
        statements: Refract::StatementsNode.new(
          body: node.body.map { |n| visit(n) }
        ),
        subsequent: Refract::ElseNode.new(
          statements: node
        )
      ),
    ]
  )
end


    		
  





    
      

  

  
    #compile_comment_helper(node)  ⇒ Object 
  

  

  




  

    
      


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# File 'lib/phlex/compiler/method_compiler.rb', line 339

def compile_comment_helper(node)
  node => Refract::CallNode

  Refract::StatementsNode.new(
    body: [
      raw("<!-- "),
      compile_phlex_block(node.block),
      raw(" -->"),
    ]
  )
end


    		
  





    
      

  

  
    #compile_doctype_helper(node)  ⇒ Object 
  

  

  




  

    
      


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# File 'lib/phlex/compiler/method_compiler.rb', line 282

def compile_doctype_helper(node)
  node => Refract::CallNode

  raw("<!doctype html>")
end


    		
  





    
      

  

  
    #compile_fragment_helper(node)  ⇒ Object 
  

  

  




  

    
      


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# File 'lib/phlex/compiler/method_compiler.rb', line 298

def compile_fragment_helper(node)
  node => Refract::CallNode

  node.copy(
    block: compile_fragment_helper_block(node.block)
  )
end


    		
  





    
      

  

  
    #compile_fragment_helper_block(node)  ⇒ Object 
  

  

  




  

    
      


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# File 'lib/phlex/compiler/method_compiler.rb', line 306

def compile_fragment_helper_block(node)
  node => Refract::BlockNode

  node.copy(
    body: Refract::StatementsNode.new(
      body: [
        Refract::LocalVariableWriteNode.new(
          name: :__phlex_original_should_render__,
          value: Refract::LocalVariableReadNode.new(
            name: should_render_local
          )
        ),
        Refract::LocalVariableWriteNode.new(
          name: should_render_local,
          value: Refract::CallNode.new(
            receiver: Refract::LocalVariableReadNode.new(
              name: state_local
            ),
            name: :should_render?
          )
        ),
        visit(node.body),
        Refract::LocalVariableWriteNode.new(
          name: should_render_local,
          value: Refract::LocalVariableReadNode.new(
            name: :__phlex_original_should_render__
          )
        ),
      ]
    )
  )
end


    		
  





    
      

  

  
    #compile_interpolated_string_node(node)  ⇒ Object 
  

  

  




  

    
      


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# File 'lib/phlex/compiler/method_compiler.rb', line 247

def compile_interpolated_string_node(node)
  node => Refract::InterpolatedStringNode

  Refract::StatementsNode.new(
    body: node.parts.map do |part|
      case part
      when Refract::StringNode
        plain(part.unescaped)
      when Refract::EmbeddedVariableNode
        interpolate(part.variable)
      when Refract::EmbeddedStatementsNode
        interpolate(part.statements)
      else
        raise Phlex::Compiler::Error, "Unexpected node type in InterpolatedStringNode: #{part.class}"
      end
    end
  )
end


    		
  





    
      

  

  
    #compile_phlex_attributes(node)  ⇒ Object 
  

  

  




  

    
      


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# File 'lib/phlex/compiler/method_compiler.rb', line 161

def compile_phlex_attributes(node)
  arguments = node.arguments

  if arguments.size == 1 && Refract::KeywordHashNode === (first_argument = arguments[0])
    attributes = first_argument.elements
    literal_attributes = attributes.all? do |attribute|
      Refract::AssocNode === attribute && static_attribute_value_literal?(attribute)
    end

    if literal_attributes
      return raw(
        Phlex::SGML::Attributes.generate_attributes(
          eval(
            "{#{Refract::Formatter.new.format_node(node).source}}",
            TOPLEVEL_BINDING
          )
        )
      )
    end

    Refract::CallNode.new(
      name: :__render_attributes__,
      arguments: Refract::ArgumentsNode.new(
        arguments: [
          node,
        ]
      )
    )
  end
end


    		
  





    
      

  

  
    #compile_phlex_block(node)  ⇒ Object 
  

  

  




  

    
      


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# File 'lib/phlex/compiler/method_compiler.rb', line 192

def compile_phlex_block(node)
  case node
  when Refract::BlockNode
    if output_block?(node)
      return visit(node.body)
    elsif static_content_block?(node)
      content = node.body.body.first
      case content
      when Refract::StringNode, Refract::SymbolNode
        return plain(content.unescaped)
      when Refract::InterpolatedStringNode
        return compile_interpolated_string_node(content)
      when Refract::NilNode
        return nil
      else
        raise
      end
    end
  end

  Refract::CallNode.new(
    name: :__yield_content__,
    block: node
  )
end


    		
  





    
      

  

  
    #compile_plain_helper(node)  ⇒ Object 
  

  

  




  

    
      


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# File 'lib/phlex/compiler/method_compiler.rb', line 288

def compile_plain_helper(node)
  node => Refract::CallNode

  if node.arguments.arguments in [Refract::StringNode]
    raw(node.arguments.arguments.first.unescaped)
  else
    node
  end
end


    		
  





    
      

  

  
    #compile_raw_helper(node)  ⇒ Object 
  

  

  




  

    
      


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# File 'lib/phlex/compiler/method_compiler.rb', line 351

def compile_raw_helper(node)
  node => Refract::CallNode
  node
end


    		
  





    
      

  

  
    #compile_standard_element(node, tag)  ⇒ Object 
  

  

  




  

    
      


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# File 'lib/phlex/compiler/method_compiler.rb', line 123

def compile_standard_element(node, tag)
  node => Refract::CallNode

  Refract::StatementsNode.new(
    body: [
      raw("<#{tag}"),
      *(
        if node.arguments
          compile_phlex_attributes(node.arguments)
        end
      ),
      raw(">"),
      *(
        if node.block
          compile_phlex_block(node.block)
        end
      ),
      raw("</#{tag}>"),
    ]
  )
end


    		
  





    
      

  

  
    #compile_void_element(node, tag)  ⇒ Object 
  

  

  




  

    
      


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# File 'lib/phlex/compiler/method_compiler.rb', line 145

def compile_void_element(node, tag)
  node => Refract::CallNode

  Refract::StatementsNode.new(
    body: [
      raw("<#{tag}"),
      *(
        if node.arguments
          compile_phlex_attributes(node.arguments)
        end
      ),
      raw(">"),
    ]
  )
end


    		
  





    
      

  

  
    #compile_whitespace_helper(node)  ⇒ Object 
  

  

  




  

    
      


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# File 'lib/phlex/compiler/method_compiler.rb', line 266

def compile_whitespace_helper(node)
  node => Refract::CallNode

  if node.block
    Refract::StatementsNode.new(
      body: [
        raw(" "),
        compile_phlex_block(node.block),
        raw(" "),
      ]
    )
  else
    raw(" ")
  end
end