Joseph Ferano
69646e534e
(defmacro do-grid [[r rows c cols] & body] ...) — positional names, a [ ] pattern wherever an argument is a vector, and & for the tail. The reading of the list lives in Expand, below both sides that need it: Parse turns it into the bindings a macro body opens with, and Macro checks a call against the same reading before expanding it, so arity and shape are refused with the call's own location rather than with the Loc.from_macro stamp every node of an expansion carries. The breaking half: [args] used to bind the whole argument list and now binds the first argument. The whole list is [& args], and every defmacro in the tree — prelude, vendor, tests, the elisp fixtures — was migrated to it. One grammar, not a legacy mode.
9 lines
380 B
Plaintext
9 lines
380 B
Plaintext
;;;; A package macro that expands into a call to itself and does not get
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;;;; smaller. Not a ring -- the call is inside a quasiquote, so it is output --
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;;;; and so it is bounded rather than refused, with the macro named at the call
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;;;; site. The name in that message is the qualified one, because that is what
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;;;; the importer wrote.
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(defmacro spin [& args]
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`(spin ~@args))
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