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Last active October 23, 2021 17:18
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Interpreter events
* PROLOG: when entering a function.
* EPILOG: when exiting a function.
* ENTER: when a block is about to be evaluated.
* EXIT: when current evaluated block's end has been reached.
* OPEN: when a new function (any-function!) call is pushed on stack and a new stack frame is opened.
* RETURN: when a function call has returned and its stack frame has been closed.
* FETCH: a value is read from the input block to be evaluated.
* PUSH: a value has been pushed on the stack.
* SET: a set-word is set to a value.
* CALL: a function with all arguments fetched on the stack gets called.
* ERROR: when an error occurs and is about to be thrown up in the stack.
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dockimbel commented Oct 20, 2021

Debugger commands:

  • next or n or just ENTER: evaluate next value.
  • continue or c: exit debugging console and continue evaluation.
  • stack or s: display the current calls and expression stack.
  • parents or p: display the parents call stack.
  • :word: outputs the value of word. If it is a function!, dump the local context.
  • :a/b/c: outputs the value of a/b/c path.
  • watch <word1> <word2>...: watch one or more words. w can be used as shortcut for watch.
  • -watch <word1> <word2>...: stop watching one or more words. -w can be used as shortcut for -watch.
  • +stack: outputs expression stack on each new event. +s can be used as a shortcut.
  • -stack: do not output expression stack on each new event. -s can be used as a shortcut.
  • +locals: output local context for each entry in the callstack. +l can be used as a shortcut.
  • -locals: do not output local context for each entry in the callstack. -l can be used as a shortcut.
  • +indent: indent the output of the expression stack. Shortcut: +i.
  • -indent: do not indent the output of the expression stack. Shortcut: -i.

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