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call

Input Stack:
program: List
 ⇨ Output Stack:
Any

Pop a list off the stack and execute it as an ASL program. This allows for dynamic program execution where the program itself can be constructed or stored in variables and then executed on demand.

Parameters

  • program: A list containing ASL expressions to execute

Examples

Basic program execution:

(,a,),:call
Pos Input Output
0 List(a) a

This takes the list (a) and executes it as a program, pushing a onto the stack.

Executing a program to square the top stack item:

BeforeAfter
name,sps,:eq,
:sum

name,sps,:eq,
:sum,
(,:dup,
:mul,
),:call

This executes the program (,:dup,:mul,) which duplicates the top stack item and then multiplies the two copies together, effectively squaring the value. The program transforms the sum result by squaring it.

  • :fcall - Function call operator
  • :each - Execute a function for each element in a list (uses call internally)
  • :map - Apply a function to each element in a list
  • :list - Create lists that can be executed with call
  • :get - Retrieve stored programs from variables
  • :set - Store programs in variables for later execution