Files
sx/examples/0638-comptime-domain-fn-not-emitted.sx
agra 2060373c16 comptime VM arc: abi(.compiler) ABI, out as sx fn, VM-native diagnostics, BuildConfig threaded
Lands the full VM/compiler-API arc on branch reify (701/0 both gates):
- abi(.compiler) ABI replaces abi(.zig) extern compiler + the fake
  #library "compiler"; bodiless decl = compiler-API surface, bodied =
  user compiler-domain fn (lowered for VM eval, emit-skipped).
- out is a plain sx fn (libc write) — the out builtin deleted; the VM
  handles it via host-FFI. trace_resolve + interp_print_frames ported.
- 4B VM-native diagnostics: 1179/1180 render proper comptime type
  construction failed: under strict.
- S5a: build_options/set_post_link_callback on abi(.compiler) with
  BuildConfig threaded into the VM (green intermediate).
- 0522 fixed (describe(args: []Type)); regression 0638.

Strict deletion-gate down to 4 compiler_call bails (1609/1614/1615/1616)
+ 1654 (legitimate unresolvable-symbol diagnostic).
2026-06-19 07:04:10 +03:00

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605 B
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// A BODIED `abi(.compiler)` function is a compiler-domain function: the comptime
// evaluator runs its sx body, but it is NEVER lowered into the shipped binary
// (emit_llvm skips it, like an extern). Here `double` folds the `#run` const at
// compile time; `main` only ever sees the folded constant, and no `double` symbol
// exists in the binary. (Regression for the S3 step of the abi(.compiler) work —
// see current/PLAN-COMPILER-VM.md.)
#import "modules/std.sx";
double :: (x: i64) -> i64 abi(.compiler) { x * 2 }
answer :: #run double(42);
main :: () {
print("answer = {}\n", answer);
}