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Diffstat (limited to 'lib/gitlab/graphql/lazy.rb')
-rw-r--r--lib/gitlab/graphql/lazy.rb26
1 files changed, 25 insertions, 1 deletions
diff --git a/lib/gitlab/graphql/lazy.rb b/lib/gitlab/graphql/lazy.rb
index a7f7610a041..3cc11047387 100644
--- a/lib/gitlab/graphql/lazy.rb
+++ b/lib/gitlab/graphql/lazy.rb
@@ -3,17 +3,41 @@
module Gitlab
module Graphql
class Lazy
+ include Gitlab::Utils::StrongMemoize
+
+ def initialize(&block)
+ @proc = block
+ end
+
+ def force
+ strong_memoize(:force) { self.class.force(@proc.call) }
+ end
+
+ def then(&block)
+ self.class.new { yield force }
+ end
+
# Force evaluation of a (possibly) lazy value
def self.force(value)
case value
+ when ::Gitlab::Graphql::Lazy
+ value.force
when ::BatchLoader::GraphQL
value.sync
+ when ::GraphQL::Execution::Lazy
+ value.value # part of the private api, but we can force this as well
when ::Concurrent::Promise
- value.execute.value
+ value.execute if value.state == :unscheduled
+
+ value.value # value.value(10.seconds)
else
value
end
end
+
+ def self.with_value(unforced, &block)
+ self.new { unforced }.then(&block)
+ end
end
end
end