Joseph Ferano
a4c6b996ff
The trio the author decided on 2026-09-20 is now all built: def is CL's defparameter — its initialiser runs on every daemon re-run, unguarded, so an edited initialiser repaints the same storage on C-c C-c plus re-run — defonce (Clojure's name for CL's defvar, per the author) initialises once behind the .init~once. flag, and defconst stays the image. One parse arm reads both forms; the difference is Ast.reinit, carried to Tast.global's grerun. Emit.startup_plan gives a def no guard flag, and Check.check_global lifts every def initialiser — zero and literal included — into global/<n>, so the host's startup reaches it through the function cell and a re-evaluated def swaps it (Session's def_inits; Emit.redefinition declares the cell for a non-sibling target). The old defvar spelling is refused with the rename and both compiling spellings, and every program, test, doc and editor list is swept — except sand.flan, the author's live WIP, whose seven defvar lines are flagged in FIX.org and keep its three dependent tests red on this branch.
37 lines
1.3 KiB
Plaintext
37 lines
1.3 KiB
Plaintext
;;;; A program to set a breakpoint in, for driving `C-u C-c C-c' from an editor.
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;;;;
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;;;; Unlike dev-break.flan it does not stop on its own: it starts running and
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;;;; keeps running, because the claim being tested is that marking a form is
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;;;; what stops it. Anything already stopped would prove nothing.
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;;;;
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;;;; What it needs is a function that keeps being called, so that a mark set
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;;;; after startup is hit, and hit again after the mark is cleared. dev-loop.flan
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;;;; calls [step] four times, which is too tight for that; this is dev-break.flan's
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;;;; tail with nothing in front of it.
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(import agent "vendor:agent")
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(defonce ticks i64)
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;;; Something to stop on that is *not* a breakpoint, so that a marked
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;;; expression sent to an already-stopped program can be told from the break it
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;;; was already sitting in. It is here rather than in an evaluated form for the
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;;; reason dev-loop.flan gives: the break loop matches on a class the host was
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;;; compiled with.
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(defstruct Missing [id i32])
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(defn boom [] i64
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(restart-case
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(do (error (Missing {.id 1})) 0)
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(carry-on [] -1)))
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(defn step [] i64
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(set ticks (+ ticks 1))
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ticks)
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(defn main [] i32
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(agent/start "/tmp/flan-dev-pause-fallback.sock")
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(dotimes [i 4000]
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(agent/wait 5)
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(set ticks (step)))
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0)
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