# globalAssignFunction -- the standard method for the global assignment hook

## Description

globalAssignFunction -- the standard function that can be used as a method for GlobalAssignHook so that certain types of things, when assigned to a global variable, will acquire the name of the global variable as their name. The companion function globalReleaseFunction is used to release the name when the global variable gets reassigned.

Another thing done by this function is to apply use to the thing. This is used for polynomial rings to assign values to the symbols representing the variables (indeterminates) in the ring.

 i1 : X = new Type of MutableHashTable o1 = X o1 : Type i2 : x = new X o2 = X{} o2 : X i3 : X.GlobalAssignHook = globalAssignFunction o3 = globalAssignFunction o3 : FunctionClosure i4 : X.GlobalReleaseHook = globalReleaseFunction o4 = globalReleaseFunction o4 : FunctionClosure i5 : x' = new X o5 = x' o5 : X i6 : t = {x,x'} o6 = {X{}, x'} o6 : List i7 : x = x' = 44 o7 = 44 i8 : t o8 = {X{}, X{}} o8 : List i9 : code globalAssignFunction o9 = Macaulay2/Core/startup.m2.in:233:35-237:15: --source code: globalAssignFunction = (X,x) -> ( if not instance(X,Symbol) then error("globalAssignFunction: expected a symbol: ", toString X); if not hasAttribute(x,ReverseDictionary) then setAttribute(x,ReverseDictionary,X); use x; );