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by jaz303
4272 days ago
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It uses a small-step interpreter [1]. Rather than capturing the interpreter's state on the native call stack, small-step interpreters explicitly model said state using stacks of objects - one per active AST node - and environments. Because they're no longer bound to the stack of the implementation language, execution may be cycled, paused and resumed at will. [1] http://matt.might.net/articles/writing-an-interpreter-substi... |
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