// Compiler pipeline control flow.
//
// [template] constructs (std/control:if, cond, for) splice host source text
// and only expand where the per-call template pass reaches. Compiler pipeline
// definitions — coordinate overrides and other impl-of-comptime flows — are
// rebuilt downstream of that pass, so templates never expand there; the
// fallback (calling the unreachable stub handler) always fails. Branch here
// on VALUES instead: a plain proc returning a branch union lowers in every
// position — pipeline overrides, walked flows, and plain runtime code.
~[comptime] pub tor branch { cond: bool }
| yes
| no

// Helper: Format metrics string
~pub tor metrics-format {
    passes_completed: u32,
    allocator: std.mem.Allocator
} -> string