Joseph Ferano
6bc4726ddd
Parse.expr never ran the expander, so a macro call typed as a bare expression was an unknown name -- a package's and the prelude's alike, which is what said the gap was older than importable macros. It is the wrap Parse.decl already had, applied to the other entry point, with Parse.with_imported in front of it in Session.eval_expr because the one expression an editor sends carries no import. The decision that was waiting: an expression that expands to a declaration is refused by name, in the head dispatch rather than in a walk over what the expander answered, so a nested one and a hand-typed one get the same sentence. A quasiquoted declaration is still a value. The spin refusal fires on this path; the ring cannot reach it, because a ring is refused while its own package is parsed. Expansion happens before the thunk is built, so the 5s three-way wait is untouched.
18 lines
758 B
Plaintext
18 lines
758 B
Plaintext
;;;; A file that imports a macro package and calls nothing from it, so it
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;;;; builds. It exists for C-x C-e.
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;;;;
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;;;; A refusal that fires while the program is being built proves nothing about
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;;;; the expression path: the session would never be created. Here the session
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;;;; creates cleanly -- [Macro.program] scans and finds no call, so no module is
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;;;; compiled -- and the first thing that ever expands [s/spin] is an expression
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;;;; typed at the REPL.
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;;;;
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;;;; The ring is deliberately not imported here: a ring is refused while the
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;;;; *package* is parsed, so no importer of one can be loaded at all and no
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;;;; session over it can exist. See the assertion beside this one.
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(import s "pkgs/macspin")
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(import mac "pkgs/mac")
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(defn main [] i32 0)
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