✓
Passing This code compiles and runs correctly.
Code
// PINS: a rule arm's row-binding column read (`e.id`), passed as a call
// argument to a HOST-BODIED proc, goes through the target's expression
// lowering in the parameter binding. The read arrives as the Zig column
// spelling; the JS inline-splice paths must lower it (`&` stripped, builtins
// mapped), never splice it raw — a raw splice is a SyntaxError at load.
// The same read into a Koru subflow callee and into a fmt interpolation was
// already correct; the opaque host-body splice was the position that missed.
import std/store
std/store:new(rows, capacity: 8) { id: i64 }
std/store:rule(rows)
! row e |> mk(): l |> show(e.id, label: l)
pub tor mk {} -> string
pub tor show { id: i64, label: string }
std/store:insert(rows) { id: 41 }
Supporting Files
~proc mk|cs { return "x"; }
~proc show|cs { global::System.Console.WriteLine("row " + id + " " + label); }
Actual
row 41 x
Expected output
✓ Zig✓ JavaScript✓ C#row 41 x
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 {
const std = @import("std");
// std/store: plural store 'rows' created (SoA cell + insert/query/write/take/stripe units); fields id: i64
// >>> FLOW: tests/regression/600_STDLIB/690_STORE/690_262_row_read_as_host_proc_call_argument/input.k:13 ~input:__store_qsweep_rows_L13_690_262_row_read_as_host_proc_call_argument_input_81588e()
pub fn flow0() void {
_ = main_module.__store_qsweep_rows_L13_690_262_row_read_as_host_proc_call_argument_input_81588e_event.handler(.{ });
}
pub const mk_event = struct {
pub const Input = struct {
};
pub const Output = []const u8;
pub fn handler(__koru_event_input: @This().Input) @This().Output {
// >>> PROC: mk [tests/regression/600_STDLIB/690_STORE/690_262_row_read_as_host_proc_call_argument/input.kz:4]
_ = &__koru_event_input;
return "x";
}
};
pub const show_event = struct {
pub const Input = struct {
id: i64,
label: []const u8,
};
pub const Output = void;
pub fn handler(__koru_event_input: @This().Input) @This().Output {
// >>> PROC: show [tests/regression/600_STDLIB/690_STORE/690_262_row_read_as_host_proc_call_argument/input.kz:5]
const id = __koru_event_input.id;
const label = __koru_event_input.label;
_ = &id;
_ = &label;
_ = &__koru_event_input;
std.debug.print("row {d} {s}\n", .{ id, label });
}
};
// >>> FLOW: tests/regression/600_STDLIB/690_STORE/690_262_row_read_as_host_proc_call_argument/input.k:19 ~input:__store_insert_rows()
pub fn flow1() void {
_ = main_module.__store_insert_rows_event.handler(.{ .id = 41, .__site_line = 19 });
}
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_rows = struct {
id: [8]i64 = undefined,
len: usize = 0,
};
var __koru_store_rows: __KoruStoreT_rows = .{};
const __KoruStoreRow_rows = struct { id: i64 };
pub const __store_insert_rows_event = struct {
pub const Input = struct {
id: i64,
__site_line: i64,
};
pub const Output = void;
pub inline fn handler(__koru_event_input: @This().Input) @This().Output {
return __koru_handler_impl(__koru_event_input.id, __koru_event_input.__site_line);
}
fn __koru_handler_impl(__koru_p_0: i64, __koru_p_1: i64) @This().Output {
const __koru_event_input: @This().Input = .{ .id = __koru_p_0, .__site_line = __koru_p_1 };
// >>> PROC: __store_insert_rows [tests/regression/600_STDLIB/690_STORE/690_262_row_read_as_host_proc_call_argument/input.k:11]
const id = __koru_event_input.id;
const __site_line = __koru_event_input.__site_line;
_ = &id;
_ = &__site_line;
_ = &__koru_event_input;
if (__koru_store_rows.len >= 8) @panic("std/store: store 'rows' is full (capacity 8) - declared capacity and the `| full` branch are pinned at 690_011");
const __koru_new_row = __koru_store_rows.len;
__koru_store_rows.id[__koru_new_row] = id;
__koru_store_rows.len += 1;
if (__site_line > 13) {
main_module.__store_qrow_rows_L13_690_262_row_read_as_host_proc_call_argument_input_81588e_event.handler(.{ .row = __koru_new_row });
}
return;
}
};
pub const __store_apply_rows_event = struct {
pub const Input = struct {
row: usize,
field: i64,
value_0: i64,
};
pub const Output = union(enum(u8)) {
id: i64,
};
pub fn handler(__koru_event_input: @This().Input) @This().Output {
// >>> PROC: __store_apply_rows [tests/regression/600_STDLIB/690_STORE/690_262_row_read_as_host_proc_call_argument/input.k:11]
const row = __koru_event_input.row;
const field = __koru_event_input.field;
const value_0 = __koru_event_input.value_0;
_ = &row;
_ = &field;
_ = &value_0;
_ = &__koru_event_input;
const __koru_r: usize = row;
return switch (field) {
0 => blk: { __koru_store_rows.id[__koru_r] = value_0; break :blk .{ .id = value_0 }; },
else => unreachable,
};
}
};
pub const __store_qrow_rows_L13_690_262_row_read_as_host_proc_call_argument_input_81588e_event = struct {
pub const Input = struct {
row: usize,
};
pub const Output = void;
pub inline fn handler(__koru_event_input: @This().Input) @This().Output {
return __koru_handler_impl(__koru_event_input.row);
}
fn __koru_handler_impl(__koru_p_0: usize) @This().Output {
const __koru_event_input: @This().Input = .{ .row = __koru_p_0 };
// >>> PROC: __store_qrow_rows_L13_690_262_row_read_as_host_proc_call_argument_input_81588e [tests/regression/600_STDLIB/690_STORE/690_262_row_read_as_host_proc_call_argument/input.k:11]
const row = __koru_event_input.row;
_ = &row;
_ = &__koru_event_input;
const __koru_r: usize = row;
main_module.__store_qbody_rows_L13_690_262_row_read_as_host_proc_call_argument_input_81588e_event.handler(.{ .__koru_sdix_rule_L13 = __koru_r });
return;
}
};
pub const __store_qbody_rows_L13_690_262_row_read_as_host_proc_call_argument_input_81588e_event = struct {
pub const Input = struct {
__koru_sdix_rule_L13: usize,
};
pub const Output = void;
pub inline fn handler(__koru_event_input: @This().Input) @This().Output {
return __koru_handler_impl(__koru_event_input.__koru_sdix_rule_L13);
}
fn __koru_handler_impl(__koru_p_0: usize) @This().Output {
const __koru_event_input: @This().Input = .{ .__koru_sdix_rule_L13 = __koru_p_0 };
// >>> SUBFLOW: tests/regression/600_STDLIB/690_STORE/690_262_row_read_as_host_proc_call_argument/input.k:11
const __koru_sdix_rule_L13 = __koru_event_input.__koru_sdix_rule_L13;
_ = &__koru_sdix_rule_L13;
_ = &__koru_event_input;
const result = main_module.mk_event.handler(.{ });
const l = result;
_ = &result;
_ = main_module.show_event.handler(.{ .id = (&__koru_store_rows.id)[@as(usize, @intCast(__koru_sdix_rule_L13))], .label = l });
}
};
pub const __store_qsweep_rows_L13_690_262_row_read_as_host_proc_call_argument_input_81588e_event = struct {
pub const Input = struct {
};
pub const Output = void;
pub fn handler(__koru_event_input: @This().Input) @This().Output {
// >>> PROC: __store_qsweep_rows_L13_690_262_row_read_as_host_proc_call_argument_input_81588e [tests/regression/600_STDLIB/690_STORE/690_262_row_read_as_host_proc_call_argument/input.k:11]
_ = &__koru_event_input;
for (0..__koru_store_rows.len) |__koru_i| {
main_module.__store_qrow_rows_L13_690_262_row_read_as_host_proc_call_argument_input_81588e_event.handler(.{ .row = __koru_i });
}
return;
}
};
};
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.koru_end_flow();
if (comptime @import("builtin").mode == .Debug) koru_leak_check();
}
test {
@import("std").testing.refAllDeclsRecursive(@This());
}
Emitted C# source
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 'rows' created (SoA cell + insert/query/write/take/stripe units); fields id: i64
static class __koru_store_rows {
public static long[] id = new long[8];
public static long len = 0;
public static long __koru_brand = -1;
}
public static class mk_event {
public struct Input {
}
public static string handler(Input __koru_input) {
return "x";
return default;
}
}
public static class show_event {
public struct Input {
public long id;
public string label;
}
public static dynamic handler(Input __koru_input) {
var id = __koru_input.id;
var label = __koru_input.label;
global::System.Console.WriteLine("row " + id + " " + label);
return default;
}
}
public static class __store_insert_rows_event {
public struct Input {
public long id;
public long __site_line;
}
public static dynamic handler(Input __koru_input) {
var id = __koru_input.id;
var __site_line = __koru_input.__site_line;
if (__koru_store_rows.len >= 8) throw new global::System.Exception("std/store: store 'rows' is full (capacity 8) - declared capacity and the `| full` branch are pinned at 690_011");
long __koru_new_row = __koru_store_rows.len;
__koru_store_rows.id[__koru_new_row] = id;
__koru_store_rows.len += 1;
if (__site_line > 13) {
main_module.__store_qrow_rows_L13_690_262_row_read_as_host_proc_call_argument_input_81588e_event.handler(new main_module.__store_qrow_rows_L13_690_262_row_read_as_host_proc_call_argument_input_81588e_event.Input { row = __koru_new_row });
}
return default;
}
}
public static class __store_apply_rows_event {
public struct Input {
public long row;
public long field;
public long value_0;
}
public struct Output {
public string tag;
public long id;
}
public static Output handler(Input __koru_input) {
var row = __koru_input.row;
var field = __koru_input.field;
var value_0 = __koru_input.value_0;
var __koru_r = row;
switch (field) {
case 0: { __koru_store_rows.id[__koru_r] = value_0; return new Output { tag = "id", id = value_0 }; }
}
throw new global::System.Exception("__store_apply_rows: field index " + field + " is not a column of store 'rows'");
return default;
}
}
public static class __store_qrow_rows_L13_690_262_row_read_as_host_proc_call_argument_input_81588e_event {
public struct Input {
public long row;
}
public static dynamic handler(Input __koru_input) {
var row = __koru_input.row;
var __koru_r = row;
main_module.__store_qbody_rows_L13_690_262_row_read_as_host_proc_call_argument_input_81588e_event.handler(new main_module.__store_qbody_rows_L13_690_262_row_read_as_host_proc_call_argument_input_81588e_event.Input { __koru_sdix_rule_L13 = __koru_r });
return default;
}
}
public static class __store_qbody_rows_L13_690_262_row_read_as_host_proc_call_argument_input_81588e_event {
public struct Input {
public long __koru_sdix_rule_L13;
}
public static dynamic handler(Input __koru_input) {
var __koru_sdix_rule_L13 = __koru_input.__koru_sdix_rule_L13;
var l = main_module.mk_event.handler(new mk_event.Input { });
{
var __koru_p_id = (long)(__koru_store_rows.id[(__koru_sdix_rule_L13)]);
var __koru_p_label = (string)(l);
global::System.Console.WriteLine("row " + __koru_p_id + " " + __koru_p_label);
}
return default;
}
}
public static class __store_qsweep_rows_L13_690_262_row_read_as_host_proc_call_argument_input_81588e_event {
public struct Input {
}
public static dynamic handler(Input __koru_input) {
for (long __koru_i = 0; __koru_i < __koru_store_rows.len; __koru_i++) {
main_module.__store_qrow_rows_L13_690_262_row_read_as_host_proc_call_argument_input_81588e_event.handler(new main_module.__store_qrow_rows_L13_690_262_row_read_as_host_proc_call_argument_input_81588e_event.Input { row = __koru_i });
}
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() {
{
for (long __koru_i = 0; __koru_i < __koru_store_rows.len; __koru_i++) {
main_module.__store_qrow_rows_L13_690_262_row_read_as_host_proc_call_argument_input_81588e_event.handler(new main_module.__store_qrow_rows_L13_690_262_row_read_as_host_proc_call_argument_input_81588e_event.Input { row = __koru_i });
}
}
}
public static void flow1() {
{
var __koru_p_id = (long)(41);
var __koru_p___site_line = (long)(19);
if (__koru_store_rows.len >= 8) throw new global::System.Exception("std/store: store 'rows' is full (capacity 8) - declared capacity and the `| full` branch are pinned at 690_011");
long __koru_new_row = __koru_store_rows.len;
__koru_store_rows.id[__koru_new_row] = __koru_p_id;
__koru_store_rows.len += 1;
if (__koru_p___site_line > 13) {
main_module.__store_qrow_rows_L13_690_262_row_read_as_host_proc_call_argument_input_81588e_event.handler(new main_module.__store_qrow_rows_L13_690_262_row_read_as_host_proc_call_argument_input_81588e_event.Input { row = __koru_new_row });
}
}
}
public static void flow2() {
main_module.koru_start_event.handler(new koru_start_event.Input { });
}
public static void flow3() {
main_module.koru_end_event.handler(new koru_end_event.Input { });
}
}
static class Program {
static void Main() {
main_module.flow2();
main_module.flow0();
main_module.flow1();
main_module.flow3();
}
}
Test Configuration
MUST_RUN LANGUAGES: zig js cs