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.
38 lines
1.3 KiB
Plaintext
38 lines
1.3 KiB
Plaintext
;;;; What [flan dev] launches: a program with a loop, a function to redefine,
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;;;; and a way to stop.
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;;;;
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;;;; It names no socket. Under [flan dev] the daemon has already decided where
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;;;; it wants to talk to this program and says so in FLAN_AGENT_SOCKET — which
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;;;; overrode whatever the source named anyway — so the argument was only ever
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;;;; a value nothing read. This is the shape a program should be written in,
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;;;; and the whole daemon block in test_dev.ml runs against it, so a delivery
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;;;; landing there is the zero-argument form working end to end.
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(import agent "vendor:agent")
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(defonce ticks i64)
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;;; A condition and something that signals it, so that a body typed in later
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;;; can establish a handler and transfer past this frame — spec-conditions.md
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;;; §6. It is here rather than in the evaluated form on purpose: the guard that
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;;; forwards the transfer has to be one the *host* was compiled with.
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(defstruct Missing [id i32])
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(defn probe [] i64
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(signal (Missing {.id 1}))
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0)
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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)
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(print (step)) (println "")
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(while (= (agent/wait 100) 0) 0)
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(print (step)) (println "")
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(while (= (agent/wait 100) 0) 0)
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(print (step)) (println "")
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(while (= (agent/wait 100) 0) 0)
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(print (step)) (println "")
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0)
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