Module: Hamlit::Compilers::OldAttribute

Includes:
Hamlit::Concerns::AttributeBuilder, Hamlit::Concerns::Balanceable, Hamlit::Concerns::Lexable
Included in:
Attributes
Defined in:
lib/hamlit/compilers/old_attribute.rb

Defined Under Namespace

Classes: HashParser

Constant Summary collapse

NESTABLE_ATTRIBUTES =

Only data can be nested for performance.

%w[data].freeze
IGNORED_EXPRESSIONS = 
%w[false nil].freeze
JOIN_ATTRIBUTES =

Class and id are joined if the value is an array.

%w[class id].freeze
JOINABLE_TOKENS = 
%i[on_ident on_qwords_beg on_lbracket].freeze
BOOLEAN_ATTRIBUTES =

Only boolean attributes can be deleted for performance.

%w[disabled readonly multiple checked autobuffer
autoplay controls loop selected hidden scoped async
defer reversed ismap seamless muted required
autofocus novalidate formnovalidate open pubdate
itemscope allowfullscreen default inert sortable
truespeed typemustmatch data].freeze
DEFAULT_COUNTS = 
{
  brace:  -1,
  emb:     0,
  paren:   0,
  bracket: 0,
}.freeze
OPEN_TOKEN_TYPES = 
{
  on_lbrace:      :brace,
  on_embexpr_beg: :emb,
  on_lparen:      :paren,
  on_lbracket:    :bracket,
}.freeze
CLOSE_TOKEN_TYPES = 
{
  on_rbrace:      :brace,
  on_embexpr_end: :emb,
  on_rparen:      :paren,
  on_rbracket:    :bracket,
}.freeze

Constants included from Hamlit::Concerns::Lexable

Hamlit::Concerns::Lexable::TYPE_POSITION

Instance Method Summary collapse

Methods included from Hamlit::Concerns::Lexable

#convert_position, #skip_tokens!, #type_of

Methods included from Hamlit::Concerns::Balanceable

#balanced_braces_exist?, #balanced_embexprs_exist?, #balanced_parens_exist?, #fetch_balanced_braces, #fetch_balanced_embexprs, #fetch_balanced_parentheses

Methods included from Hamlit::Concerns::AttributeBuilder

#flatten_attributes

Instance Method Details

#compile_old_attribute(str) ⇒ Object 



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# File 'lib/hamlit/compilers/old_attribute.rb', line 55

def compile_old_attribute(str)
  raise RuntimeBuild unless valid_hash?(str)

  attrs = parse_old_attributes(str)
  assert_no_boolean_attributes!(attrs)

  format_attributes(attrs).map do |key, value|
    next true_attribute(key) if value == 'true'
    assert_static_value!(value)   if NESTABLE_ATTRIBUTES.include?(key)
    detect_joinable_value!(value) if JOIN_ATTRIBUTES.include?(key)

    [:html, :attr, key, [:dynamic, value]]
  end
rescue RuntimeBuild
  # Give up static compilation when given string is invalid as ruby hash
  [[:runtime, str]]
end