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Macaulay2Doc > The Macaulay2 language > system facilities > autoload

autoload -- arrange for a function to be loaded automatically

Synopsis

Description

i1 : fn = temporaryFileName()

o1 = /tmp/M2-2558757-0/0
i2 : fn << "f = x -> x+1\n" << close

o2 = /tmp/M2-2558757-0/0

o2 : File
i3 : autoload(f,fn)
i4 : code f

o4 = /usr/share/Macaulay2/Core/autoload.m2:8:19-
     12:22: --source code:
          sym <- f := x -> (
               load filename;
               if f === value sym 
               then error("symbol '", toString sym, "' didn't acquire a new value in file '", filename, "'");
               (value sym) x
               );
          )
     | symbol    class            value                                                    location of symbol
     | ------    -----            -----                                                    ------------------                                                         
     | f         FunctionClosure  -*Function[/home/m2user/build/BUILD/M2-release-1.22/M2/Ma.  /usr/share/Macaulay2/Core/autoload.m2:8:12-8:13
     | sym       Symbol           f                                                        /usr/share/Macaulay2/Core/autoload.m2:6:28-6:31
     | filename  String           "/tmp/M2-2558757-0/0"                                    /usr/share/Macaulay2/Core/autoload.m2:6:32-6:40
i5 : f 4

o5 = 5
i6 : removeFile fn

Ways to use autoload :

For the programmer

The object autoload is a method function.