ludic/selfhost/support/buf.ludic
Orkuncakilkaya 23726afa90
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refactor(selfhost): reorganise into concern-based subdirectories
Split the flat 38-file selfhost/ into concern-based subdirectories:

  frontend/        lex, parse, parse_game, ast
  support/         str, buf, io
  backend/         core IR + expression/statement lowering
  backend/game/    ECS/scene/event/world lowering
  backend/stdlib/  the namespaced Math.*/Text.*/Crypto.*/… intrinsics

and split the three oversized emitters at responsibility boundaries so
no file mixes concerns:

  emit_game.ludic  -> + emit_world.ludic         (reflection world table,
                                                  tick helpers, @main synthesis)
  emit_expr.ludic  -> + emit_call.ludic          (namespaced builtins, call
                                                  lowering, expr dispatch)
  emit_text.ludic  -> + emit_text_prelude.ludic  (emitted string-builder runtime)

FRAGS in tools/x/selfhost.ludic is updated to the new paths with the link
order preserved, and the Python doc/vocabulary tooling is updated to walk
the new layout. Because the build is a plain in-order concatenation and
every split lands on a blank-line boundary, the regenerated seed is
byte-identical: `x reseed` leaves selfhost/ludicc.seed.ll unchanged,
`x bootstrap-cfree` still reaches its fixed point, and both `x test` (56)
and `x selfhost-test` (29, incl. golden renders) stay green.

Closes #29

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-08-31 00:26:02 +03:00

29 lines
937 B
Text

# buf.ludic — a growable byte buffer for building IR text. The emitter writes
# module-level material (types, globals, string constants) into one buffer and
# function bodies into another, then prints them in order.
property Buf { data: pointer = null, len: int = 0, cap: int = 0 }
function buf_new() -> Buf {
let b = new Buf
b.cap = 256
b.data = bytes(b.cap)
b.len = 0
return b
}
function buf_ensure(b: Buf, extra: int) -> void {
if b.len + extra + 1 <= b.cap { return }
while b.len + extra + 1 > b.cap { b.cap = b.cap * 2 }
b.data = resize(b.data, b.cap)
}
function buf_putc(b: Buf, c: int) -> void {
buf_ensure(b, 1)
b.data[b.len] = c
b.len = b.len + 1
}
function buf_puts(b: Buf, s: pointer) -> void {
var i = 0
while s[i] != 0 { buf_putc(b, s[i]); i = i + 1 }
}
function buf_puti(b: Buf, n: int) -> void { buf_puts(b, itoa(n)) }
function buf_str(b: Buf) -> pointer { b.data[b.len] = 0; return b.data }