Class: Slim::Compiler Private

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

Overview

This class is part of a private API. You should avoid using this class if possible, as it may be removed or be changed in the future.

Compiles Slim expressions into Temple::HTML expressions.

Instance Method Summary collapse

Methods inherited from Filter

#on_slim_embedded

Instance Method Details

#on_slim_attr(name, escape, code) ⇒ Array

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Handle attribute expression ‘[:slim, :attr, escape, code]`

Parameters:

  • escape (Boolean) —

    Escape html

  • code (String) —

    Ruby code

Returns:

  • (Array) —

    Compiled temple expression



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# File 'lib/slim/compiler.rb', line 62

def on_slim_attr(name, escape, code)
  value = case code
  when 'true'
    escape = false
    [:static, name]
  when 'false', 'nil'
    escape = false
    [:multi]
  else
    tmp = unique_name
    [:multi,
     [:code, "#{tmp} = #{code}"],
     [:case, tmp,
      ['true', [:static, name]],
      ['false, nil', [:multi]],
      [:else,
       [:dynamic,
        if delimiter = options[:attr_delimiter][name]
          "#{tmp}.respond_to?(:join) ? #{tmp}.flatten.compact.join(#{delimiter.inspect}) : #{tmp}"
        else
          code
        end
       ]]]]
  end
  [:html, :attr, name, [:escape, escape, value]]
end

#on_slim_condcomment(condition, content) ⇒ Array

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Handle conditional comment expression ‘[:slim, :conditional_comment, conditional, content]`

Parameters:

  • content (Array) —

    Temple expression

Returns:

  • (Array) —

    Compiled temple expression



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# File 'lib/slim/compiler.rb', line 21

def on_slim_condcomment(condition, content)
  [:multi, [:static, "<!--[#{condition}]>"], compile(content), [:static, '<![endif]-->']]
end

#on_slim_control(code, content) ⇒ Array

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Handle control expression ‘[:slim, :control, code, content]`

Parameters:

  • ruby (String) —

    code

  • content (Array) —

    Temple expression

Returns:

  • (Array) —

    Compiled temple expression



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# File 'lib/slim/compiler.rb', line 10

def on_slim_control(code, content)
  [:multi,
    [:code, code],
    compile(content)]
end

#on_slim_output(escape, code, content) ⇒ Array

This method is part of a private API. You should avoid using this method if possible, as it may be removed or be changed in the future.

Handle output expression ‘[:slim, :output, escape, code, content]`

Parameters:

  • escape (Boolean) —

    Escape html

  • code (String) —

    Ruby code

  • content (Array) —

    Temple expression

Returns:

  • (Array) —

    Compiled temple expression



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# File 'lib/slim/compiler.rb', line 31

def on_slim_output(escape, code, content)
  if empty_exp?(content)
    [:multi, [:escape, escape, [:dynamic, code]], content]
  else
    tmp = unique_name

    [:multi,
     # Capture the result of the code in a variable. We can't do
     # `[:dynamic, code]` because it's probably not a complete
     # expression (which is a requirement for Temple).
     [:block, "#{tmp} = #{code}",

      # Capture the content of a block in a separate buffer. This means
      # that `yield` will not output the content to the current buffer,
      # but rather return the output.
      #
      # The capturing can be disabled with the option :disable_capture.
      # Output code in the block writes directly to the output buffer then.
      # Rails handles this by replacing the output buffer for helpers.
      options[:disable_capture] ? compile(content) : [:capture, unique_name, compile(content)]],

     # Output the content.
     [:escape, escape, [:dynamic, tmp]]]
  end
end