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Phase 7f: len(x) works on strings too (retire slen)

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`len` is now polymorphic — a slice's element count OR a string's byte length —
so the C-style `slen` (strlen) is gone: `slen(name)` -> `len(name)`. emit_len
branches on the operand type (slice header vs @strlen). Two reseeds: add the
string branch, then migrate the 19 slen calls and delete slen.

Reseeded (22565 lines); C-free fixpoint holds; goldens identical; 18/18; vocab +
doc-fences clean. (String slicing s[a..b] to replace substr is deferred to its
own phase.)

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
This commit is contained in:
Orkun ÇAKILKAYA 2026-08-28 01:25:57 +03:00
parent 058cac88ec
commit 839a6bf0c0
11 changed files with 3555 additions and 3542 deletions
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4
selfhost/emit_head.ludic
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@ -7,7 +7,7 @@ fn hexdig(n: int) -> int { if n < 10 { return 48 + n }; return 55 + n } # 0-9
fn emit_str_const(s: ptr) -> ptr {
let name = ("@.str" + itoa(ll_str))
ll_str = ll_str + 1
let n = slen(s)
let n = len(s)
emith(name); emith(" = private unnamed_addr constant [")
emith(itoa(n + 1)); emith(" x i8] c\"")
var i = 0
@ -75,7 +75,7 @@ fn emit_header() -> void {
emith("@L_argc = internal global i32 0\n")
emith("@L_argv = internal global ptr null\n")
emith("@.gametitle = private unnamed_addr constant [")
emith(itoa(slen(g_game_name) + 1)); emith(" x i8] c\""); emith(g_game_name); emith("\\00\"\n")
emith(itoa(len(g_game_name) + 1)); emith(" x i8] c\""); emith(g_game_name); emith("\\00\"\n")
emith("%LSlice = type { ptr, i32, i32 }\n")
# property layouts — a %Cmp_ record of named fields, emitted here so `new`
# works whether or not the program runs the ECS. The per-entity @S_/@H_ arrays