FIFO cache

Gemfile

@@ -9,7 +9,6 @@ gem "rubocop"
 gem "sus"
 gem "benchmark-ips"
 gem "yard"
-gem "green_dots", github: "joeldrapper/green_dots"
 
 group :test do
 	gem "i18n"

lib/phlex.rb

@@ -14,6 +14,8 @@ module Phlex
 	autoload :Unbuffered, "phlex/unbuffered"
 	autoload :ConcurrentMap, "phlex/concurrent_map"
 	autoload :BlackHole, "phlex/black_hole"
+	autoload :LRU, "phlex/lru"
+	autoload :FIFO, "phlex/fifo"
 
 	# Included in all Phlex exceptions allowing you to match any Phlex error.
 	# @example Rescue any Phlex error:
@@ -37,7 +39,7 @@ class NameError < ::NameError
 	end
 
 	# @api private
-	ATTRIBUTE_CACHE = Phlex::ConcurrentMap.new
+	CACHE = Phlex::FIFO.new(20_000_000)
 end
 
 if Gem::Version.new(RUBY_VERSION) < Gem::Version.new("3.0")

lib/phlex/elements.rb

@@ -39,11 +39,11 @@ def #{method_name}(**attributes, &block)
 
 				if attributes.length > 0 # with attributes
 					if block # with content block
-						target << "<#{tag}" << (Phlex::ATTRIBUTE_CACHE[respond_to?(:process_attributes) ? (attributes.hash + self.class.hash) : attributes.hash] || __attributes__(**attributes)) << ">"
+						target << "<#{tag}" << (Phlex::CACHE[respond_to?(:process_attributes) ? (attributes.hash + self.class.hash) : attributes.hash] || __attributes__(**attributes)) << ">"
 						yield_content(&block)
 						target << "</#{tag}>"
 					else # without content block
-						target << "<#{tag}" << (Phlex::ATTRIBUTE_CACHE[respond_to?(:process_attributes) ? (attributes.hash + self.class.hash) : attributes.hash] || __attributes__(**attributes)) << "></#{tag}>"
+						target << "<#{tag}" << (Phlex::CACHE[respond_to?(:process_attributes) ? (attributes.hash + self.class.hash) : attributes.hash] || __attributes__(**attributes)) << "></#{tag}>"
 					end
 				else # without attributes
 					if block # with content block
@@ -77,7 +77,7 @@ def #{method_name}(**attributes)
 				target = @_context.target
 
 				if attributes.length > 0 # with attributes
-					target << "<#{tag}" << (Phlex::ATTRIBUTE_CACHE[respond_to?(:process_attributes) ? (attributes.hash + self.class.hash) : attributes.hash] || __attributes__(**attributes)) << ">"
+					target << "<#{tag}" << (Phlex::CACHE[respond_to?(:process_attributes) ? (attributes.hash + self.class.hash) : attributes.hash] || __attributes__(**attributes)) << ">"
 				else # without attributes
 					target << "<#{tag}>"
 				end

lib/phlex/fifo.rb

@@ -0,0 +1,57 @@
+# frozen_string_literal: true
+
+class Phlex::FIFO
+	def initialize(max_bytesize)
+		@hash = {}
+		@mutex = Mutex.new
+
+		@bytesize = 0
+		@max_bytesize = max_bytesize
+	end
+
+	attr_accessor :size
+	attr_accessor :max_bytesize
+
+	def [](key)
+		@hash[key]
+	end
+
+	def []=(key, value)
+		@mutex.synchronize do
+			old_value = @hash.delete(key)
+			@hash[key] = value
+
+			@bytesize += value.bytesize - (old_value ? old_value.bytesize : 0)
+
+			while @bytesize > @max_bytesize
+				key, value = @hash.shift
+				@bytesize -= value.bytesize
+			end
+		end
+	end
+
+	def delete(key)
+		@mutex.synchronize do
+			old_value = @hash.delete(key)
+			@bytesize -= old_value.bytesize if old_value
+		end
+	end
+
+	def include?(key)
+		@hash.include?(key)
+	end
+
+	def size
+		@hash.size
+	end
+
+	def empty?
+		@hash.empty?
+	end
+
+	def clear
+		@mutex.synchronize do
+			@hash.clear
+		end
+	end
+end

lib/phlex/sgml.rb

@@ -23,12 +23,6 @@ def new(*args, **kwargs, &block)
 				end
 			end
 
-			# @api private
-			def rendered_at_least_once!
-				alias_method :__attributes__, :__final_attributes__
-				alias_method :call, :__final_call__
-			end
-
 			# @api private
 			def element_method?(method_name)
 				return false unless instance_methods.include?(method_name)
@@ -94,15 +88,8 @@ def await(task)
 			end
 		end
 
-		# Renders the view and returns the buffer. The default buffer is a mutable String.
-		def call(buffer = +"", context: Phlex::Context.new, view_context: nil, parent: nil, &block)
-			__final_call__(buffer, context: context, view_context: view_context, parent: parent, &block).tap do
-				self.class.rendered_at_least_once!
-			end
-		end
-
 		# @api private
-		def __final_call__(buffer = +"", context: Phlex::Context.new, view_context: nil, parent: nil, &block)
+		def call(buffer = +"", context: Phlex::Context.new, view_context: nil, parent: nil, &block)
 			@_buffer = buffer
 			@_context = context
 			@_view_context = view_context
@@ -363,13 +350,6 @@ def __text__(content)
 
 		# @api private
 		def __attributes__(**attributes)
-			__final_attributes__(**attributes).tap do |buffer|
-				Phlex::ATTRIBUTE_CACHE[respond_to?(:process_attributes) ? (attributes.hash + self.class.hash) : attributes.hash] = buffer.freeze
-			end
-		end
-
-		# @api private
-		def __final_attributes__(**attributes)
 			if respond_to?(:process_attributes)
 				attributes = process_attributes(**attributes)
 			end