Call Build Arguments Rule: Parameters

When the state is "call_build_args" and the "Parameters" list is not empty, then pop the first element from the list.

if the following are true:

  • expression state at time t = "call_build_args"
  • Parameters List at time t = [ var, frest ]
  • Argument Values at time t = [ value, vrest ]

then Parameters List at time (t + 1) = frest

When the state is "call_build_args," elements are popped from the "Parameters" list and used as keys in the "Function Variables" map.

For example,

if the following are true:

  • expression state at time 11 = "call_build_args"
  • Parameters List at time 11 = [ x, [ ] ]
  • Argument Values at time 11 = [ 5, [ ] ]

then Parameters List at time (11 + 1) = [ ]

Try stepping through the simulator to see LW Python pop "x" from the "Parameterse" list.

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