EVAL/SCOPED
Graduated feature: scoped_dictionary
Takes the topmost item and evaluates it as a PumpkinScript program on the current stack with a clone of the dictionary
Input stack: code
Output stack: result of code evaluation
EVAL/SCOPED is a sister version of EVAL with
one important distinction: all new instructions defined inside
(or updated values for previously defined ones) within this
evaluation (using SET and DEF) will be
gone after the evaluation.
PumpkinDB> 1 'val SET [2 'val SET val] EVAL/SCOPED val
2 1
Allocation
Allocates a copy of the code (this might change in the future) during the runtime.
Errors
EmptyStack error if there is less than one item on the stack
Tests
eval_scoped_clone : "scoped_dictionary" FEATURE? [1 'val SET [2 'val SET val] EVAL/SCOPED val 2 WRAP 2 1 2 WRAP EQUAL?] [1] IFELSE.