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addHook(Symbol,Function) -- add a hook function to an object for later processing

Synopsis

Code

../../../../../../Macaulay2/m2/methods.m2:487:56-487:125: --source code:
addHook   (HashTable,Thing,Function) := (obj,key,hook) -> (c := obj.cache; c#key = if c#?key then prepend(hook,c#key) else {hook})
../../../../../../Macaulay2/m2/methods.m2:483:63-483:121: --source code:
addHook   (MutableHashTable,Thing,Function) := (obj,key,hook) -> obj#key = if obj#?key then prepend(hook,obj#key) else {hook}

See also