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Ingy döt Net 2015-02-20 09:02:09 -05:00
parent 00a190b0a6
commit 91df62d461
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Task/Closures-Value-capture/REXX/closures-value-capture.rexx Normal file
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/*REXX pgm has a list of 10 functions, each returns its invocation(idx)²*/
do j=1 for 9 /*invoke random functions 9 times.*/
interpret 'CALL .'random(0,9) /*invoke a randomly selected func.*/
end /*j*/ /* [↑] the random func has no args*/
say 'The tenth invocation of .0 ───► ' .0()
exit /*stick a fork in it, we're done.*/
/*─────────────────────────────────list of 10 functions─────────────────*/
/*[Below is the closest thing to anonymous functions in the REXX lang.] */
.0:return .(); .1:return .(); .2:return .(); .3:return .(); .4:return .()
.5:return .(); .6:return .(); .7:return .(); .8:return .(); .9:return .()
/*─────────────────────────────────. function───────────────────────────*/
.: if symbol('@')=='LIT' then @=0 /*handle 1st invoke*/; @=@+1; return @*@