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Macaulay2Doc :: runHooks(HashTable,Thing,Thing)

runHooks(HashTable,Thing,Thing) -- run the hook functions stored in an object

Synopsis

Usage:

runHooks(obj,key,arg)
Function: runHooks
Inputs:
- obj, a hash table
- key, a thing
- arg, a thing
Outputs:
- If one of the functions uses break to return a value, that value will be returned. Otherwise null will be returned.
Consequences:
- each function hook in list of hooks stored in obj#key or obj.cache#key is called with arg as its argument or sequence of arguments.

Code

/home/dan/src/M2/M2/Macaulay2/m2/methods.m2:521:56-521:116: --source code:
runHooks  (HashTable,Thing,Thing   ) := (obj,key,arg ) -> (c := obj.cache; if c#?key then scan(c#key, hook -> hook arg))
/home/dan/src/M2/M2/Macaulay2/m2/methods.m2:517:63-517:110: --source code:
runHooks  (MutableHashTable,Thing,Thing   ) := (obj,key,arg ) -> if obj#?key then scan(obj#key, hook -> hook arg)

See also

addHook -- add a hook function to an object for later processing
removeHook -- remove a hook function from an object