Class: ThemeCheck::ParserBlockingScriptTag

Inherits:
LiquidCheck show all
Defined in:
lib/theme_check/checks/parser_blocking_script_tag.rb

Overview

Reports errors when trying to use parser-blocking script tags

Constant Summary

Constants inherited from Check

Check::CATEGORIES, Check::SEVERITIES, Check::SEVERITY_VALUES

Instance Attribute Summary

Attributes inherited from Check

#ignored_patterns, #offenses, #options, #theme

Instance Method Summary collapse

Methods included from ChecksTracking

#inherited

Methods included from ParsingHelpers

#outside_of_strings

Methods inherited from Check

#==, #add_offense, all, can_disable, #can_disable?, categories, #categories, category, #code_name, doc, #doc, docs_url, #ignore!, #ignored?, #severity, severity, #severity=, #severity_value, severity_value, single_file, #single_file?, #to_s, #whole_theme?

Methods included from JsonHelpers

#format_json_parse_error

Instance Method Details

#on_variable(node) ⇒ Object 



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# File 'lib/theme_check/checks/parser_blocking_script_tag.rb', line 9

def on_variable(node)
  used_filters = node.value.filters.map { |name, *_rest| name }
  if used_filters.include?("script_tag")
    add_offense(
      "The script_tag filter is parser-blocking. Use a script tag with the async or defer " \
      "attribute for better performance",
      node: node
    )
  end
end