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Phase 7g: the compiler builds its IR with interpolation, not +

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Answering your readability point directly: the compiler's own string-building —
left uglier by the 7c `+` migration, e.g. `emit_bind(("load i32, ptr " + ip))` —
now reads as interpolation:

  emit_bind(("load i32, ptr " + ip))            -> emit_bind(`load i32, ptr {ip}`)
  emit_bind(("icmp eq i32 " + (kv + (", " + itoa(ak)))))
                                                -> emit_bind(`icmp eq i32 {kv}, {itoa(ak)}`)
  perr(("assign to unknown " + t.s))            -> perr(`assign to unknown {t.s}`)

164 concat chains across selfhost converted by a tool that flattens the `+` tree,
keeps call/index parens (only grouping parens are rewritten), and converts only
**brace-free** literals — LLVM IR structure strings full of `{`/`}` stay as `+`
rather than becoming awkward `{{`/`}}`. No new language surface; interpolation
already desugars to the same concat.

Reseeded (22565 lines); C-free fixpoint holds byte-for-byte (the strongest proof
the reconstruction is exact); goldens identical; 18/18.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Orkun ÇAKILKAYA 2026-08-28 01:30:37 +03:00
parent 4faf91abdc
commit df6955e609
20 changed files with 566 additions and 566 deletions
Download patch file Download diff file Expand all files Collapse all files

6
selfhost/emit_spawn.ludic
View file

@ -4,7 +4,7 @@
fn emit_init_component(e: ptr, comp: ptr, rec: Node) -> void {
let me = itoa(MAX_ENT)
let c = find_comp(comp)
if (c == null) { perr(("spawn: unknown property " + comp)) }
if (c == null) { perr(`spawn: unknown property {comp}`) }
let hp = nreg(); emit(" "); emit(hp); emit(" = getelementptr inbounds ["); emit(me); emit(" x i8], ptr @H_"); emit(comp); emit(", i32 0, i32 "); emit(e); emit("\n")
emit(" store i8 1, ptr "); emit(hp); emit("\n")
let slot = nreg()
@ -101,11 +101,11 @@ fn emit_despawn(st: Node) -> void {
if len(g_ondespawn) > 0 {
let me = itoa(MAX_ENT)
let kp = nreg(); emit(" "); emit(kp); emit(" = getelementptr inbounds ["); emit(me); emit(" x i32], ptr @L_kind, i32 0, i32 "); emit(v.code); emit("\n")
let kind = emit_bind(("load i32, ptr " + kp))
let kind = emit_bind(`load i32, ptr {kp}`)
var i = 0
while i < len(g_ondespawn) {
let mname = g_ondespawn[i].s
let c = emit_bind(("icmp eq i32 " + (kind + (", " + itoa(find_arch_id(mname))))))
let c = emit_bind(`icmp eq i32 {kind}, {itoa(find_arch_id(mname))}`)
let yes = lbl("dh"); let no = lbl("dhn")
emit(" br i1 "); emit(c); emit(", label %"); emit(yes); emit(", label %"); emit(no); emit("\n")
emit(yes); emit(":\n call void @on_despawn_"); emit(mname); emit("(i32 "); emit(v.code); emit(")\n")