ludic/selfhost/tests/datetime2.ludic
Orkuncakilkaya 647dfec334 feat(compiler): list literals, typed compound assignment, file:line diagnostics
- `[a, b, c]` list literals (E_LIST → emit_list); static_type learns
  slice-element, `new T`, list, string and literal kinds
- `x op= y` lowers through the same path as `x = x op y` (emit_bin_vals):
  fixed `*=`/`/=` use the Q16.16 64-bit paths, string `+=` concatenates,
  int→long widens; unary `-` keeps a fixed operand's type (arith_ty)
- one `unescape()` table for "strings", 'chars' and `interpolation`;
  `'\''`, `'\\'`, `'\"'` no longer read as 0; unterminated char literals
  and unexpected characters are errors instead of silently skipped
- every diagnostic is `file:line: error: msg` (g_parse_file / g_err_file,
  Node.file + Node.line set by node()); tok_desc() in expectation errors;
  duplicate `function` names and unknown `phase` names are reported in
  source terms (phase_id used to default unknown phases to Overlay)
- interpolation holes skip braces inside string literals
- hand-IR preludes move from the user `@fn_` prefix to `@lp_` so a user
  `is_ws` / `str_eq` / `path_join` no longer collides at link time
- `@ClearColor(expr)` accepts any constant expression; `Os.pid()` added
  (docs page + inventory); `str_starts()` in support/str
- main.ludic: `else if` flag ladder, char literals, stale script comments
- examples/lang/operators.ludic covers all of the above; os.ludic covers
  Os.pid; docs pages for Os.pid and the Overlay phase; ten changesets
- reseeded: selfhost/ludicc.seed.ll is the new compiler's own fixpoint

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
2026-09-05 01:12:16 +03:00

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program T {
entry {
let t = DateTime.from(2026, 8, 30, 7, 5, 9)
# format — tokens expand zero-padded, other chars pass through
print(DateTime.format(t, "YYYY-MM-DD")) # 2026-08-30
print(DateTime.format(t, "HH:mm:ss")) # 07:05:09
print(DateTime.format(t, "DD/MM/YY")) # 30/08/26
# parse — round-trips to the same instant; missing fields default to midnight
print(DateTime.parse("2026-08-30", "YYYY-MM-DD") - Date.to_epoch(Date.new(2026, 8, 30))) # 0
print(DateTime.parse("zz", "YYYY")) # -1 (non-digit -> parse fails)
# Clock — the game-controlled simulated clock
Clock.set(3600)
print(Clock.now()) # 3600
Clock.advance(Duration.minutes(30))
print(Clock.now()) # 5400
print(DateTime.minute(Clock.now())) # 30
Clock.reset()
print(Clock.now()) # 0
}
}