Class Statement Property

When LW Python reads a class statement, it creates a new entry in the "Class Definitions" map where the key is the class name and the value is a list of bases classes (if there are any), methods, and the current line. More formally,

if the following are true:

  • the line at time t = i
  • the tab at time t = j
  • statement at line i, tab j = a class named name with bases: bases

then Class Map at time (t + 1) = result of storing [ entry "bases": bases, [ entry "methods": [ ], [ entry "line": i, [ ] ] ] ] at key: name in map: (Class Map at time t)

For example,

if the following are true:

  • the line at time 0 = 1
  • the tab at time 0 = 0
  • statement at line 1, tab 0 = class Person:

then Class Map at time (0 + 1) = result of storing [ entry "bases": [ ], [ entry "methods": [ ], [ entry "line": 1, [ ] ] ] ] at key: "Person" in map: (Class Map at time 0)

Try stepping through the simulator to see LW Python save the class information in the "Class Definitions" map.

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LW Python State
Current Line1Current Tab0Time0
LW Python Simulator

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