class EZML::AttributeCompiler
Public Class Methods
new(options)
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# File lib/ezml/attribute_compiler.rb, line 22 def initialize(options) @is_html = [:html4, :html5].include?(options[:format]) @attr_wrapper = options[:attr_wrapper] @escape_attrs = options[:escape_attrs] @hyphenate_data_attrs = options[:hyphenate_data_attrs] end
runtime_build(attributes, object_ref, dynamic_attributes)
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# File lib/ezml/attribute_compiler.rb, line 18 def self.runtime_build(attributes, object_ref, dynamic_attributes) "_ezmlout.attributes(#{EZML::Util.inspect_obj(attributes)}, #{object_ref},#{dynamic_attributes.to_literal})" end
Public Instance Methods
compile(attributes, object_ref, dynamic_attributes)
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# File lib/ezml/attribute_compiler.rb, line 29 def compile(attributes, object_ref, dynamic_attributes) if object_ref != :nil || !AttributeParser.available? return [:dynamic, AttributeCompiler.runtime_build(attributes, object_ref, dynamic_attributes)] end parsed_hashes = [dynamic_attributes.new, dynamic_attributes.old].compact.map do |attribute_hash| unless (hash = AttributeParser.parse(attribute_hash)) return [:dynamic, AttributeCompiler.runtime_build(attributes, object_ref, dynamic_attributes)] end hash end attribute_values = build_attribute_values(attributes, parsed_hashes) AttributeBuilder.verify_attribute_names!(attribute_values.map(&:key)) [:multi, *group_values_for_sort(attribute_values).map { |value_group| compile_attribute_values(value_group) }] end
Private Instance Methods
build_attribute_values(attributes, parsed_hashes)
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# File lib/ezml/attribute_compiler.rb, line 61 def build_attribute_values(attributes, parsed_hashes) [].tap do |attribute_values| attributes.each do |key, static_value| attribute_values << AttributeValue.new(:static, key, static_value) end parsed_hashes.each do |parsed_hash| parsed_hash.each do |key, dynamic_value| attribute_values << AttributeValue.new(:dynamic, key, dynamic_value) end end end end
compile_attribute(key, values)
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# File lib/ezml/attribute_compiler.rb, line 112 def compile_attribute(key, values) if values.all? { |v| Temple::StaticAnalyzer.static?(v.to_literal) } return static_build(values) end case key when 'id', 'class' compile_id_or_class_attribute(key, values) else compile_common_attribute(key, values) end end
compile_attribute_values(values)
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# File lib/ezml/attribute_compiler.rb, line 74 def compile_attribute_values(values) if values.map(&:key).uniq.size == 1 compile_attribute(values.first.key, values) else runtime_build(values) end end
compile_common_attribute(key, values)
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# File lib/ezml/attribute_compiler.rb, line 141 def compile_common_attribute(key, values) var = unique_name [:multi, [:code, "#{var} = (#{merged_value(key, values)})"], [:case, var, ['Hash', runtime_build([AttributeValue.new(:dynamic, key, var)])], ['true', true_value(key)], ['false, nil', [:multi]], [:else, [:multi, [:static, " #{key}=#{@attr_wrapper}"], [:escape, @escape_attrs, [:dynamic, var]], [:static, @attr_wrapper]], ] ], ] end
compile_id_or_class_attribute(id_or_class, values)
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# File lib/ezml/attribute_compiler.rb, line 125 def compile_id_or_class_attribute(id_or_class, values) var = unique_name [:multi, [:code, "#{var} = (#{merged_value(id_or_class, values)})"], [:case, var, ['Hash, Array', runtime_build([AttributeValue.new(:dynamic, id_or_class, var)])], ['false, nil', [:multi]], [:else, [:multi, [:static, " #{id_or_class}=#{@attr_wrapper}"], [:escape, @escape_attrs, [:dynamic, var]], [:static, @attr_wrapper]], ] ], ] end
frozen_string(str)
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# File lib/ezml/attribute_compiler.rb, line 108 def frozen_string(str) "#{EZML::Util.inspect_obj(str)}.freeze" end
group_values_for_sort(values)
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# File lib/ezml/attribute_compiler.rb, line 50 def group_values_for_sort(values) sorted_values = values.sort_by(&:key) [].tap do |value_groups| until sorted_values.empty? key = sorted_values.first.key value_group, sorted_values = sorted_values.partition { |v| v.key.start_with?(key) } value_groups << value_group end end end
merged_value(key, values)
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# File lib/ezml/attribute_compiler.rb, line 100 def merged_value(key, values) if values.size == 1 values.first.to_literal else "::EZML::AttributeBuilder.merge_values(#{frozen_string(key)}, #{values.map(&:to_literal).join(', ')})" end end
runtime_build(values)
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# File lib/ezml/attribute_compiler.rb, line 82 def runtime_build(values) hash_content = values.group_by(&:key).map do |key, values_for_key| "#{frozen_string(key)} => #{merged_value(key, values_for_key)}" end.join(', ') [:dynamic, "_ezmlout.attributes({ #{hash_content} }, nil)"] end
static_build(values)
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# File lib/ezml/attribute_compiler.rb, line 89 def static_build(values) hash_content = values.group_by(&:key).map do |key, values_for_key| "#{frozen_string(key)} => #{merged_value(key, values_for_key)}" end.join(', ') arguments = [@is_html, @attr_wrapper, @escape_attrs, @hyphenate_data_attrs] code = "::EZML::AttributeBuilder.build_attributes"\ "(#{arguments.map { |a| EZML::Util.inspect_obj(a) }.join(', ')}, { #{hash_content} })" [:static, eval(code).to_s] end
true_value(key)
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# File lib/ezml/attribute_compiler.rb, line 158 def true_value(key) if @is_html [:static, " #{key}"] else [:static, " #{key}=#{@attr_wrapper}#{key}#{@attr_wrapper}"] end end
unique_name()
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# File lib/ezml/attribute_compiler.rb, line 166 def unique_name @unique_name ||= 0 "_ezml_attribute_compiler#{@unique_name += 1}" end