[<<][staapl][>>][..]Tue Feb 26 13:26:36 CET 2008
best to start here: http://pre.plt-scheme.org/docs/html/reference/Evaluation_Model.html#(part~20prompt-model) i think i sort of get it.. the analogy of stack frames, but more general since they can be tree-structured (just like environments). all the operations on continuations are then compositions of these trees, with restrictions on how far back in the tree continuations can be captured, and rules on composition that makes sence in light of these restrictions. Accessing a tree as if it were a stream and ``updating'' in-place without mutation.. http://lambda-the-ultimate.org/node/969
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