✓
Passing This code compiles and runs correctly.
Code
// 690_057 — ambiguous owned column, discharged via a bolted-on `! discharge`
// branch. *Transaction<active!> has TWO dischargers (commit|rollback), so the
// store can't pick — it requires the discharger to be declared AT the store (the
// store is static/program-lifetime, so its discharger is static too). Teardown
// (program exit) fires `! discharge item` per still-live element; the item holds
// <active!>, so the phantom checker forces the handler to discharge it.
//
// ONE column, so `item` IS the transaction — not a record wrapping it. The
// two-column shape is 690_097's control.
import std/io
import std/store
import app/lib/tx
std/store:new(txns, capacity: 8) { tx: *app/lib/tx:Transaction<active!> }
! discharge item |> app/lib/tx:commit(tx: item)
app/lib/tx:begin(): t1 |> std/store:insert(txns) { tx: t1 }
| row _ |> _
app/lib/tx:begin(): t2 |> std/store:insert(txns) { tx: t2 }
| row _ |> _
std/io:print.ln("inserted")
Supporting Files
// C# facet for app/lib/tx — the |cs twin of tx.kz's |zig bodies.
// *Transaction<active!> is the class instance itself; GC carries the
// allocation, so `commit`/`rollback` only print — no destroy.
public class Transaction {
public dynamic id;
}
~proc begin|cs {
return new Transaction { id = 7 };
}
~proc commit|cs {
__koru_stdout_write($"commit {tx.id}\n");
}
~proc rollback|cs {
__koru_stdout_write($"rollback {tx.id}\n");
}
// An AMBIGUOUS owned resource: *Transaction<active!> with TWO void dischargers
// consuming <!active> — commit AND rollback. The store cannot pick, so an owned
// column of this type must be DRAINED (caller discharges each element), not
// auto-torn-down. (Mirrors 690_035's entity ambiguity one level down.)
const std = @import("std");
const Transaction = struct { id: i32 };
~pub tor begin { } -> *Transaction<active!>
~proc begin|zig {
const t = std.heap.page_allocator.create(Transaction) catch unreachable;
t.* = .{ .id = 7 };
return t;
}
~pub tor commit { tx: *Transaction<!active> }
~proc commit|zig {
std.debug.print("commit {d}\n", .{tx.id});
std.heap.page_allocator.destroy(tx);
}
~pub tor rollback { tx: *Transaction<!active> }
~proc rollback|zig {
std.debug.print("rollback {d}\n", .{tx.id});
std.heap.page_allocator.destroy(tx);
}
Actual
inserted
commit 7
commit 7
Expected output
✓ Zig✓ C#inserted
commit 7
commit 7
Emitted Zig source
// Access compiler flags via the per-user compiler_env module
const CompilerEnv = @import("compiler_env").CompilerEnv;
pub const panic = if (@import("builtin").mode == .Debug)
@import("std").debug.FullPanic(@import("std").debug.defaultPanic)
else
@import("std").debug.simple_panic;
const __koru_bare = struct {
extern fn posix_memalign(memptr: *?*anyopaque, alignment: usize, size: usize) c_int;
extern fn free(ptr: ?*anyopaque) void;
fn bareAlloc(_: *anyopaque, len: usize, alignment: @import("std").mem.Alignment, _: usize) ?[*]u8 {
var p: ?*anyopaque = null;
const a = @max(alignment.toByteUnits(), @sizeOf(usize));
if (posix_memalign(&p, a, len) != 0) return null;
return @ptrCast(p);
}
fn bareResize(_: *anyopaque, _: []u8, _: @import("std").mem.Alignment, _: usize, _: usize) bool { return false; }
fn bareRemap(_: *anyopaque, _: []u8, _: @import("std").mem.Alignment, _: usize, _: usize) ?[*]u8 { return null; }
fn bareFree(_: *anyopaque, memory: []u8, _: @import("std").mem.Alignment, _: usize) void { free(@ptrCast(memory.ptr)); }
const vtable = @import("std").mem.Allocator.VTable{ .alloc = bareAlloc, .resize = bareResize, .remap = bareRemap, .free = bareFree };
const allocator = @import("std").mem.Allocator{ .ptr = undefined, .vtable = &vtable };
};
const __koru_backing = if (@import("builtin").link_libc) @import("std").heap.c_allocator else if (@import("builtin").os.tag == .freestanding) __koru_bare.allocator else @import("std").heap.page_allocator;
var __koru_leak_count: @import("std").atomic.Value(usize) = .init(0);
fn __koru_alloc(ctx: *anyopaque, len: usize, alignment: @import("std").mem.Alignment, ret_addr: usize) ?[*]u8 {
_ = ctx;
const r = __koru_backing.rawAlloc(len, alignment, ret_addr);
if (comptime @import("builtin").mode == .Debug) {
if (r != null) _ = __koru_leak_count.fetchAdd(1, .monotonic);
}
return r;
}
fn __koru_resize(ctx: *anyopaque, memory: []u8, alignment: @import("std").mem.Alignment, new_len: usize, ret_addr: usize) bool {
_ = ctx;
return __koru_backing.rawResize(memory, alignment, new_len, ret_addr);
}
fn __koru_remap(ctx: *anyopaque, memory: []u8, alignment: @import("std").mem.Alignment, new_len: usize, ret_addr: usize) ?[*]u8 {
_ = ctx;
return __koru_backing.rawRemap(memory, alignment, new_len, ret_addr);
}
fn __koru_free(ctx: *anyopaque, memory: []u8, alignment: @import("std").mem.Alignment, ret_addr: usize) void {
_ = ctx;
__koru_backing.rawFree(memory, alignment, ret_addr);
if (comptime @import("builtin").mode == .Debug) {
_ = __koru_leak_count.fetchSub(1, .monotonic);
}
}
const __koru_vtable = @import("std").mem.Allocator.VTable{ .alloc = __koru_alloc, .resize = __koru_resize, .remap = __koru_remap, .free = __koru_free };
pub fn koru_allocator() @import("std").mem.Allocator {
return .{ .ptr = undefined, .vtable = &__koru_vtable };
}
pub inline fn __koru_intcast(comptime T: type, x: anytype) T {
if (comptime (@import("builtin").mode == .Debug or @import("builtin").mode == .ReleaseSafe))
return @as(T, @intCast(x));
const dst = @typeInfo(T);
const src = @typeInfo(@TypeOf(x));
if (comptime (dst == .int and src == .int and dst.int.bits == src.int.bits and dst.int.signedness != src.int.signedness))
return @as(T, @bitCast(x));
return @as(T, @intCast(x));
}
pub fn koru_leak_check() void {
if (comptime @import("builtin").mode != .Debug) return;
if (__koru_leak_count.load(.acquire) == 0) return;
if (comptime @import("builtin").target.os.tag == .freestanding) {
if (comptime @import("builtin").cpu.arch == .wasm32 or @import("builtin").cpu.arch == .wasm64) {
@panic("KORU LEAK CHECK FAILED: the produced program leaked");
} else {
const __klc = struct { extern var stdout: ?*anyopaque; extern fn fputs(__s: [*:0]const u8, __st: ?*anyopaque) c_int; };
var __lb: [128]u8 = undefined;
const __lm = "KORU LEAK CHECK FAILED: allocations still outstanding at end of run: ";
@memcpy(__lb[0..__lm.len], __lm);
var __ln: usize = __lm.len;
var __lv = __koru_leak_count.load(.acquire);
var __ld: [20]u8 = undefined;
var __lk: usize = 0;
while (__lv > 0) : (__lk += 1) { __ld[__lk] = @intCast('0' + __lv % 10); __lv /= 10; }
for (0..__lk) |__li| { __lb[__ln] = __ld[__lk - 1 - __li]; __ln += 1; }
__lb[__ln] = '\n'; __ln += 1; __lb[__ln] = 0;
_ = __klc.fputs(@as([*:0]const u8, @ptrCast(&__lb)), __klc.stdout);
@trap();
}
} else {
@import("std").debug.print("KORU LEAK CHECK FAILED: the produced program leaked (trace above)\n", .{});
@import("std").process.exit(1);
}
}
pub const main_module = struct {
// std/store: plural store 'txns' created (SoA cell + insert/query/write/take/stripe units); fields tx: *app/lib/tx:Transaction<active!>
// >>> FLOW: tests/regression/600_STDLIB/690_STORE/690_057_store_ambiguous_column_drain/input.k:18 ~app.lib.tx:begin()
pub fn flow0() void {
const t1 = koru_app.koru_lib.koru_tx.begin_event.handler(.{ });
const result_1 = main_module.__store_inserth_txns_event.handler(.{ .tx = t1, .__site_line = 18 });
_ = &result_1;
const _auto_6 = result_1.row;
_ = &_auto_6;
}
// >>> FLOW: tests/regression/600_STDLIB/690_STORE/690_057_store_ambiguous_column_drain/input.k:20 ~app.lib.tx:begin()
pub fn flow1() void {
const t2 = koru_app.koru_lib.koru_tx.begin_event.handler(.{ });
const result_1 = main_module.__store_inserth_txns_event.handler(.{ .tx = t2, .__site_line = 20 });
_ = &result_1;
const _auto_7 = result_1.row;
_ = &_auto_7;
}
// >>> FLOW: tests/regression/600_STDLIB/690_STORE/690_057_store_ambiguous_column_drain/input.k:23 ~std.io:print.impl()
pub fn flow2() void {
(struct { fn __kout(__fd: i32, __b: []const u8) void { if (@import("builtin").os.tag == .freestanding) { const __kc = struct { extern var stdout: ?*anyopaque; extern var stderr: ?*anyopaque; extern fn fputs(__s: [*:0]const u8, __st: ?*anyopaque) c_int; }; var __kt: [4096]u8 = undefined; for (0..(__b.len + __kt.len - 2) / (__kt.len - 1)) |__ki| { const __kn = @min(__kt.len - 1, __b.len - __ki * (__kt.len - 1)); @memcpy(__kt[0..__kn], __b[__ki * (__kt.len - 1)..][0..__kn]); __kt[__kn] = 0; @import("std").mem.doNotOptimizeAway(__kc.fputs(@as([*:0]const u8, @ptrCast(&__kt)), if (__fd == 2) __kc.stderr else __kc.stdout)); } } else { @import("std").mem.doNotOptimizeAway(@import("std").posix.write(__fd, __b) catch @as(usize, 0)); } } fn __kw(comptime __f: []const u8, __a: anytype) void { var __kb: [65536]u8 = undefined; const __ks = @import("std").fmt.bufPrint(&__kb, __f, __a) catch __kb[0..0]; __kout(1, __ks); } }).__kw("inserted\n", .{});
}
pub fn koru_start_flow() void {
const result_0 = koru_koru.start_event.handler(.{ });
const result_0_done = result_0.done;
_ = &result_0_done;
}
pub fn koru_end_flow() void {
const result_0 = koru_koru.end_event.handler(.{ });
const result_0_done = result_0.done;
_ = &result_0_done;
}
const __KoruStoreT_txns = struct {
tx: [8]*koru_app.koru_lib.koru_tx.Transaction = undefined,
len: usize = 0,
};
var __koru_store_txns: __KoruStoreT_txns = .{};
const __KoruStoreRow_txns = struct { tx: *koru_app.koru_lib.koru_tx.Transaction };
pub const __store_inserth_txns_event = struct {
pub const Input = struct {
tx: *koru_app.koru_lib.koru_tx.Transaction,
__site_line: i64,
};
pub const Output = union(enum(u8)) {
row: i64,
};
pub fn handler(__koru_event_input: @This().Input) @This().Output {
// >>> PROC: __store_inserth_txns [tests/regression/600_STDLIB/690_STORE/690_057_store_ambiguous_column_drain/input.k:15]
const tx = __koru_event_input.tx;
const __site_line = __koru_event_input.__site_line;
_ = &tx;
_ = &__site_line;
_ = &__koru_event_input;
if (__koru_store_txns.len >= 8) @panic("std/store: store 'txns' is full (capacity 8) - declared capacity and the `| full` branch are pinned at 690_011");
const __koru_new_row = __koru_store_txns.len;
__koru_store_txns.tx[__koru_new_row] = tx;
__koru_store_txns.len += 1;
return .{ .row = @as(i64, @intCast(__koru_new_row)) };
}
};
pub const __store_teardown_txns_event = struct {
pub const Input = struct {
};
pub const Output = void;
pub fn handler(__koru_event_input: @This().Input, comptime __H: type) @This().Output {
const discharge = __H.discharge;
_ = &discharge;
// >>> PROC: __store_teardown_txns [tests/regression/600_STDLIB/690_STORE/690_057_store_ambiguous_column_drain/input.k:15]
_ = &__koru_event_input;
for (0..__koru_store_txns.len) |__koru_i| {
discharge(__koru_store_txns.tx[__koru_i]);
}
__koru_store_txns.len = 0;
return;
}
};
// >>> FLOW: tests/regression/600_STDLIB/690_STORE/690_057_store_ambiguous_column_drain/input.k:15 ~input:__store_teardown_txns()
pub fn flow3() void {
const __koru_eff_disc_0: main_module.__store_teardown_txns_event.Output = __koru_proc_0: {
for (0..__koru_store_txns.len) |__koru_i| {
{ const item = __koru_store_txns.tx[__koru_i]; _ = &item; _ = koru_app.koru_lib.koru_tx.commit_event.handler(.{ .tx = item });
}
}
__koru_store_txns.len = 0;
break :__koru_proc_0;
};
_ = __koru_eff_disc_0;
}
};
pub const koru_app = struct {
pub const koru_lib = struct {
pub const koru_tx = struct {
const std = @import("std");
const Transaction = struct { id: i32 };
pub const begin_event = struct {
pub const Input = struct {
};
pub const Output = *koru_app.koru_lib.koru_tx.Transaction;
pub fn handler(__koru_event_input: @This().Input) @This().Output {
// >>> PROC: begin [/Users/larsde/src/koru/tests/regression/600_STDLIB/690_STORE/690_057_store_ambiguous_column_drain/lib/tx.kz:10]
_ = &__koru_event_input;
const t = std.heap.page_allocator.create(Transaction) catch unreachable;
t.* = .{ .id = 7 };
return t;
}
};
pub const commit_event = struct {
pub const Input = struct {
tx: *koru_app.koru_lib.koru_tx.Transaction,
};
pub const Output = void;
pub fn handler(__koru_event_input: @This().Input) @This().Output {
// >>> PROC: commit [/Users/larsde/src/koru/tests/regression/600_STDLIB/690_STORE/690_057_store_ambiguous_column_drain/lib/tx.kz:17]
const tx = __koru_event_input.tx;
_ = &tx;
_ = &__koru_event_input;
std.debug.print("commit {d}\n", .{tx.id});
std.heap.page_allocator.destroy(tx);
}
};
};
};
};
pub const koru_koru = struct {
pub const start_event = struct {
pub const Input = struct {
};
pub const Output = union(enum(u8)) {
done: struct {
},
};
pub fn handler(__koru_event_input: @This().Input) @This().Output {
_ = &__koru_event_input;
return .{ .done = .{} };
}
};
pub const end_event = struct {
pub const Input = struct {
};
pub const Output = union(enum(u8)) {
done: struct {
},
};
pub fn handler(__koru_event_input: @This().Input) @This().Output {
_ = &__koru_event_input;
return .{ .done = .{} };
}
};
};
pub fn main() void {
main_module.koru_start_flow();
main_module.flow0();
main_module.flow1();
main_module.flow2();
main_module.flow3();
main_module.koru_end_flow();
if (comptime @import("builtin").mode == .Debug) koru_leak_check();
}
test {
@import("std").testing.refAllDeclsRecursive(@This());
}
Emitted C# source
public class Transaction {
public dynamic id;
}
static class main_module {
public static void __koru_stdout_write(dynamic s) => global::System.Console.Out.Write(s);
public static void __koru_stderr_write(dynamic s) => global::System.Console.Error.Write(s);
// The mutable handle carrier — `*String`-style resources are
// `new __KoruBox { data = … }` because C# anonymous types are
// read-only: `s.data = …` (std/string append/clear, handle
// mutation generally) needs a settable member.
public class __KoruBox { public dynamic data; }
// Textification for `{{ … }}` operands: C# bool ToStrings as
// `True` where Koru prints `true`, and the operand's static type
// is unknown at this boundary — a `(x) is bool` inline test would
// be a compile error on statically-typed operands instead. Generic
// on purpose: `dynamic` boxed every value-type operand — measured
// ~1s/10M elements on 012_threat_scanner — while T specializes to
// the operand's own ToString() with no box.
public static string __koru_str<T>(T v) => v is bool b ? (b ? "true" : "false") : v?.ToString();
// std/store: plural store 'txns' created (SoA cell + insert/query/write/take/stripe units); fields tx: *app/lib/tx:Transaction<active!>
static class __koru_store_txns {
public static dynamic[] tx = new dynamic[8];
public static long len = 0;
public static long __koru_brand = -1;
}
public static class __store_inserth_txns_event {
public struct Input {
public dynamic tx;
public long __site_line;
}
public struct Output {
public string tag;
public long row;
}
public static Output handler(Input __koru_input) {
var tx = __koru_input.tx;
var __site_line = __koru_input.__site_line;
if (__koru_store_txns.len >= 8) throw new global::System.Exception("std/store: store 'txns' is full (capacity 8) - declared capacity and the `| full` branch are pinned at 690_011");
long __koru_new_row = __koru_store_txns.len;
__koru_store_txns.tx[__koru_new_row] = tx;
__koru_store_txns.len += 1;
return new Output { tag = "row", row = __koru_new_row };
return default;
}
}
public static class __store_teardown_txns_event {
public struct Input {
}
public interface IOps {
void discharge(dynamic __koru_arg);
}
public static dynamic handler<H>(Input __koru_input, H ops) where H : struct, IOps {
void discharge(dynamic __koru_arg) => ops.discharge(__koru_arg);
for (var __koru_i = 0; __koru_i < __koru_store_txns.len; __koru_i++) {
discharge(__koru_store_txns.tx[__koru_i]);
}
__koru_store_txns.len = 0;
return default;
}
}
public static class std_io_print_impl_event {
public struct Input {
public dynamic expr;
}
public static dynamic handler(dynamic __koru_input) {
throw new global::System.Exception("std.io:impl has no C# implementation — its body resolves only to a non-cs target (|zig / [comptime]), directly or through a callee");
}
}
public static class app_lib_tx_begin_event {
public struct Input {
}
public static dynamic handler(Input __koru_input) {
return new Transaction { id = 7 };
return default;
}
}
public static class app_lib_tx_commit_event {
public struct Input {
public dynamic tx;
}
public static dynamic handler(Input __koru_input) {
var tx = __koru_input.tx;
__koru_stdout_write($"commit {tx.id}\n");
return default;
}
}
public static class koru_start_event {
public struct Input {
}
public struct Output {
public string tag;
public dynamic done;
}
public static Output handler(Input __koru_input) => new Output { tag = "done" };
}
public static class koru_end_event {
public struct Input {
}
public struct Output {
public string tag;
public dynamic done;
}
public static Output handler(Input __koru_input) => new Output { tag = "done" };
}
public static void flow0() {
var t1 = main_module.app_lib_tx_begin_event.handler(new app_lib_tx_begin_event.Input { });
var result_0 = main_module.__store_inserth_txns_event.handler(new __store_inserth_txns_event.Input { tx = t1, __site_line = (long)(18)});
var _auto_6 = result_0.row;
}
public static void flow1() {
var t2 = main_module.app_lib_tx_begin_event.handler(new app_lib_tx_begin_event.Input { });
var result_1 = main_module.__store_inserth_txns_event.handler(new __store_inserth_txns_event.Input { tx = t2, __site_line = (long)(20)});
var _auto_7 = result_1.row;
}
public static void flow2() {
__koru_stdout_write("inserted" + "\n");
}
public static void flow3() {
main_module.koru_start_event.handler(new koru_start_event.Input { });
}
public static void flow4() {
main_module.koru_end_event.handler(new koru_end_event.Input { });
}
public static void flow5() {
var __koru_handlers_2 = new __koru_handlers_2 { __koru_fn_discharge = (__koru_arm_3) => {
var item = __koru_arm_3;
return main_module.app_lib_tx_commit_event.handler(new app_lib_tx_commit_event.Input { tx = item});
}, };
main_module.__store_teardown_txns_event.handler(new __store_teardown_txns_event.Input { }, __koru_handlers_2);
}
struct __koru_handlers_2 : __store_teardown_txns_event.IOps {
public global::System.Func<dynamic, dynamic> __koru_fn_discharge;
public void discharge(dynamic __koru_arm_3) => __koru_fn_discharge(__koru_arm_3);
}
}
static class Program {
static void Main() {
main_module.flow3();
main_module.flow0();
main_module.flow1();
main_module.flow2();
main_module.flow5();
main_module.flow4();
}
}
Flows
flow ~new click a branch to expand · @labels scroll to their anchor
new (txns, capacity: 8, source: tx: *app/lib/tx:Transaction<active!>)
flow ~begin click a branch to expand · @labels scroll to their anchor
begin
flow ~begin click a branch to expand · @labels scroll to their anchor
begin
flow ~print.ln click a branch to expand · @labels scroll to their anchor
print.ln (expr: "inserted")
Test Configuration
MUST_RUN LANGUAGES: zig cs