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-rw-r--r--lib/protocols/Relation.mli22
1 files changed, 22 insertions, 0 deletions
diff --git a/lib/protocols/Relation.mli b/lib/protocols/Relation.mli
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+++ b/lib/protocols/Relation.mli
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+type t
+
+class type implementation = object
+ method heading : (Concepts.Hash.hash, Concepts.Condition.condition) result
+ method predicate : (Concepts.Hash.hash option, Concepts.Condition.condition) result
+ method local_constraints : (Concepts.Hash.hash option, Concepts.Condition.condition) result
+ method tuples : (Concepts.Hash.hash, Concepts.Condition.condition) result
+ method contains : Concepts.Blob.t -> (bool, Concepts.Condition.condition) result
+end
+
+val make : #implementation -> Handle.protocol
+val from : Handle.t -> t Handle.interface option
+val heading : t Handle.interface -> (Concepts.Hash.hash, Concepts.Condition.condition) result
+
+val predicate :
+ t Handle.interface -> (Concepts.Hash.hash option, Concepts.Condition.condition) result
+
+val local_constraints :
+ t Handle.interface -> (Concepts.Hash.hash option, Concepts.Condition.condition) result
+
+val tuples : t Handle.interface -> (Concepts.Hash.hash, Concepts.Condition.condition) result
+val contains : t Handle.interface -> Concepts.Blob.t -> (bool, Concepts.Condition.condition) result