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
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i2 : x = new X
o2 = X{}
o2 : X
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i3 : X.GlobalAssignHook = globalAssignFunction
o3 = globalAssignFunction
o3 : FunctionClosure
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i4 : X.GlobalReleaseHook = globalReleaseFunction
o4 = globalReleaseFunction
o4 : FunctionClosure
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i5 : x' = new X
o5 = x'
o5 : X
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i6 : t = {x,x'}
o6 = {X{}, x'}
o6 : List
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i7 : x = x' = 44
o7 = 44
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i8 : t
o8 = {X{}, X{}}
o8 : List
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i9 : code globalAssignFunction
o9 = /usr/local/share/Macaulay2/Core/startup.m2.in:234:34-
237:14: --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;
);
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