Class: ExpressTemplates::Template::Handler

Inherits:
Object
  • Object
show all
Defined in:
lib/express_templates/template/handler.rb

Class Method Summary collapse

Instance Method Summary collapse

Class Method Details

.call(template) ⇒ Object 



6
7
8
 
# File 'lib/express_templates/template/handler.rb', line 6

def self.call(template)
  new.call(template)
end

Instance Method Details

#call(template) ⇒ Object 



10
11
12
13
14
15
 
# File 'lib/express_templates/template/handler.rb', line 10

def call(template)
  # returns a string to be eval'd
  source = "(#{ExpressTemplates.compile(template)}).html_safe"
  warn_contains_logic(source) if ENV['NO_TEMPLATE_WARN'].nil? # pass the source code
  source
end

#warn_contains_logic(compiled_template) ⇒ Object 



17
18
19
20
21
22
23
24
25
26
27
 
# File 'lib/express_templates/template/handler.rb', line 17

def warn_contains_logic(compiled_template)
  keywords = %w(if until unless case for do loop while)                                                                 # array of conditional keywords
  tokens = []
  if Ripper.lex(compiled_template).select do |element|                                                                  # since it outputs an array [[line, col], type, token]
    element[1]==:on_kw                                                                                                  # type must match ':on_kw' type (type is keyword)
  end.each { |match| tokens.push(match) if keywords.include? match[2] }                                                 # check if token is in given /keyword/ array, then push to new array match
    tokens.each do |first|
      warn "PAGE TEMPLATE INCLUDES #{first[2]} STATEMENT AT LINE #{first[0][0]}: #{first}\n#{compiled_template}"        # warn on first occurence of conditional logic
    end
  end
end