class ActionView::Digestor
Public Class Methods
digest(name:, finder:, dependencies: [])
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Supported options:
-
name
-Template
name -
finder
- An instance ofActionView::LookupContext
-
dependencies
- An array of dependent views
# File lib/action_view/digestor.rb, line 23 def digest(name:, finder:, dependencies: []) dependencies ||= [] cache_key = [ name, finder.rendered_format, dependencies ].flatten.compact.join(".") # this is a correctly done double-checked locking idiom # (Concurrent::Map's lookups have volatile semantics) finder.digest_cache[cache_key] || @@digest_mutex.synchronize do finder.digest_cache.fetch(cache_key) do # re-check under lock partial = name.include?("/_") root = tree(name, finder, partial) dependencies.each do |injected_dep| root.children << Injected.new(injected_dep, nil, nil) end finder.digest_cache[cache_key] = root.digest(finder) end end end
logger()
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# File lib/action_view/digestor.rb, line 41 def logger ActionView::Base.logger || NullLogger end
tree(name, finder, partial = false, seen = {})
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Create a dependency tree for template named name
.
# File lib/action_view/digestor.rb, line 46 def tree(name, finder, partial = false, seen = {}) logical_name = name.gsub(%r|/_|, "/") if template = find_template(finder, logical_name, [], partial, []) finder.rendered_format ||= template.formats.first if node = seen[template.identifier] # handle cycles in the tree node else node = seen[template.identifier] = Node.create(name, logical_name, template, partial) deps = DependencyTracker.find_dependencies(name, template, finder.view_paths) deps.uniq { |n| n.gsub(%r|/_|, "/") }.each do |dep_file| node.children << tree(dep_file, finder, true, seen) end node end else unless name.include?("#") # Dynamic template partial names can never be tracked logger.error " Couldn't find template for digesting: #{name}" end seen[name] ||= Missing.new(name, logical_name, nil) end end
Private Class Methods
find_template(finder, name, prefixes, partial, keys)
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# File lib/action_view/digestor.rb, line 73 def find_template(finder, name, prefixes, partial, keys) finder.disable_cache do format = finder.rendered_format result = finder.find_all(name, prefixes, partial, keys, formats: [format]).first if format result || finder.find_all(name, prefixes, partial, keys).first end end