Files
sx/examples/0603-comptime-interp-variadic-any.sx
agra 65ac370683 P5.4: migrate all callers to on_build; delete set_post_link_callback
on_build is now the sole post-build callback mechanism. Migrated the 9 callers
(0602/0603/1611/1614/1615/1616 + the platform bundle_main) from
opts.set_post_link_callback(cb) to on_build(cb), giving each callback the
(opt: BuildOptions) param. Deleted set_post_link_callback from build.sx,
compiler_lib (bound_fns + handleSetPostLinkCallback), and the VM arm.

Reworked the P5 smoke tests for the new semantics: an on_build override REPLACES
the build (must emit+link or delegate), unlike the old post-link callback which
ran after the auto-link. 1662 (queries) + 1664 (override+List-grow) now delegate
to default_pipeline for the real build; deleted 1661/1663 (the primitives are now
exercised by every AOT build). bundle_main invoked with pass_options=true.

Benign 37-.ir churn (build.sx shrank). 703/0 both gates.
2026-06-19 09:37:05 +03:00

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// IR interpreter — variadic `..Any` indexing inside post-link callback.
//
// `format(fmt, ..args: []Any)` lowers to `any_to_string(args[i])` calls.
// The interpreter must be able to read every element of the packed
// `[N x Any]` slice from within a `#run`/post-link callback, not just
// the first two — and not just via JIT.
#import "modules/std.sx";
#import "modules/build.sx";
puts :: (s: [:0]u8) -> i32 extern libc;
cb :: (opt: BuildOptions) -> bool abi(.compiler) {
a := format("{}", "x");
puts("1-arg ok");
b := format("{} {}", "x", "y");
puts("2-arg ok");
c := format("{} {} {}", "x", "y", "z");
puts("3-arg ok");
true
}
// The registrar is itself compiler-domain (`abi(.compiler)`): it runs in the
// comptime evaluator (never the binary), so its `build_options()` /
// `set_post_link_callback()` compiler-API calls are permitted.
configure :: () abi(.compiler) {
opts := build_options();
on_build(cb);
}
#run configure();
main :: () { print("rt\n"); }