✓
Passing This code compiles and runs correctly.
Code
// PINS: a store is linkable from ANYWHERE in the program by name, across module
// boundaries, with no annotation and no qualified path. RULED — this is the
// substrate property, not an accident of the lowering.
//
// DESIGN.md:19-21 — "stores are declared (comptime name + shape) and
// instantiated (runtime moment), LINKABLE FROM ANYWHERE IN THE PROGRAM BY
// NAME. Reads and writes are events; reactivity is compiled, not subscribed."
//
// DESIGN.md T1 — a transplanted body's free names must be a subset of
// {its query-block bindings} u {comptime-known names: module decls,
// qualified calls, OTHER STORES}. Other stores are a named member of the
// legal set, so reaching one by name is the design working.
//
// The reason is stated with the rule and is worth keeping in view: koru flows
// have explicit enumerable bindings, which is what makes transplant-purity
// decidable at all. Module-scoping store names would shrink that enumerable set
// and buy nothing.
//
// Written because this test was first authored to pin `[global(name)]` as the
// mechanism granting cross-module access — and it passed with the annotation
// REMOVED, which read as an accident and is not one. Gardened from prose into a
// pin so the next reader meets the ruling as a running test.
//
// A duplication-checked registration (`[global(<name>)]`) is a separate,
// UNRULED question: it would add a wall to a namespace that is deliberately
// flat, not add access that already exists.
import std/io
import std/store
import app/lib/arena
app/lib/arena:seed()
std/io:print.ln("hp {{ game.hp:d }}")
Supporting Files
// Owns the store and EXPORTS it under a globally unique name.
import std/store
std/store:new(game) { hp: 0[i64] }
pub tor seed { }
seed = std/store:stored { game.hp: 7 }
Actual
hp 7
Expected output
✓ Zig✓ C#hp 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 {
// >>> FLOW: tests/regression/600_STDLIB/690_STORE/690_088_global_store_export/input.k:32 ~app.lib.arena:seed()
pub fn flow0() void {
_ = koru_app.koru_lib.koru_arena.seed_event.handler(.{ });
}
// >>> FLOW: tests/regression/600_STDLIB/690_STORE/690_088_global_store_export/input.k:34 ~std.io:print.impl()
pub fn flow1() 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("hp {d}\n", .{koru_app.koru_lib.koru_arena.__koru_store_game.hp});
}
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;
}
};
pub const koru_app = struct {
pub const koru_lib = struct {
pub const koru_arena = struct {
const __KoruStoreT_game = blk: {
const __info = @typeInfo(@TypeOf(.{ .hp = @as(i64, 0) }));
var __fields: [__info.@"struct".fields.len]@import("std").builtin.Type.StructField = undefined;
for (__info.@"struct".fields, 0..) |__f, __i| {
__fields[__i] = .{ .name = __f.name, .type = __f.type, .default_value_ptr = null, .is_comptime = false, .alignment = __f.alignment };
}
break :blk @Type(.{ .@"struct" = .{ .layout = .auto, .fields = &__fields, .decls = &.{}, .is_tuple = false } });
};
var __koru_store_game: __KoruStoreT_game = .{ .hp = @as(i64, 0) };
// std/store: 'game' created (cell + write-subflow at module scope); fields hp: i64
pub const seed_event = struct {
pub const Input = struct {
};
pub const Output = void;
pub fn handler(__koru_event_input: @This().Input) @This().Output {
// >>> SUBFLOW: /Users/larsde/src/koru/tests/regression/600_STDLIB/690_STORE/690_088_global_store_export/lib/arena.k:7
_ = &__koru_event_input;
const result = koru_app.koru_lib.koru_arena.__store_write_game_event.handler(.{ .field = 0, .value = 7 });
_ = &result;
}
};
pub const __store_apply_game_event = struct {
pub const Input = struct {
field: i64,
value: i64,
};
pub const Output = union(enum(u8)) {
hp: i64,
};
pub fn handler(__koru_event_input: @This().Input) @This().Output {
// >>> PROC: __store_apply_game [/Users/larsde/src/koru/tests/regression/600_STDLIB/690_STORE/690_088_global_store_export/lib/arena.k:4]
const field = __koru_event_input.field;
const value = __koru_event_input.value;
_ = &field;
_ = &value;
_ = &__koru_event_input;
return switch (field) {
0 => blk: { __koru_store_game.hp = value; break :blk .{ .hp = value }; },
else => unreachable,
};
}
};
pub const __store_write_game_event = struct {
pub const Input = struct {
field: i64,
value: i64,
};
pub const Output = void;
pub fn handler(__koru_event_input: @This().Input) @This().Output {
// >>> SUBFLOW: /Users/larsde/src/koru/tests/regression/600_STDLIB/690_STORE/690_088_global_store_export/lib/arena.k:4
const field = __koru_event_input.field;
const value = __koru_event_input.value;
_ = &field;
_ = &value;
_ = &__koru_event_input;
const result = koru_app.koru_lib.koru_arena.__store_apply_game_event.handler(.{ .field = field, .value = value });
return switch (result) {
.hp => {},
};
}
};
pub const __store_announce_game_event = struct {
pub const Input = struct {
field: i64,
};
pub const Output = void;
pub inline fn handler(__koru_event_input: @This().Input) @This().Output {
return __koru_handler_impl(__koru_event_input.field);
}
fn __koru_handler_impl(__koru_p_0: i64) @This().Output {
const __koru_event_input: @This().Input = .{ .field = __koru_p_0 };
// >>> PROC: __store_announce_game [/Users/larsde/src/koru/tests/regression/600_STDLIB/690_STORE/690_088_global_store_export/lib/arena.k:4]
const field = __koru_event_input.field;
_ = &field;
_ = &__koru_event_input;
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: 'game' created (cell + write-subflow at module scope); fields hp: i64
static class __koru_store_game {
public static long hp = 0;
public static long __koru_brand = -1;
}
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_arena_seed_event {
public struct Input {
}
public static dynamic handler(Input __koru_input) {
main_module.app_lib_arena___store_write_game_event.handler(new app_lib_arena___store_write_game_event.Input { field = (long)(0), value = (long)(7)});
return default;
}
}
public static class app_lib_arena___store_apply_game_event {
public struct Input {
public long field;
public long value;
}
public struct Output {
public string tag;
public long hp;
}
public static Output handler(Input __koru_input) {
var field = __koru_input.field;
var value = __koru_input.value;
switch (field) {
case 0: { __koru_store_game.hp = value; return new Output { tag = "hp", hp = value }; }
}
throw new global::System.Exception("__store_apply_game: field index " + field + " is not a column of store 'game'");
return default;
}
}
public static class app_lib_arena___store_write_game_event {
public struct Input {
public long field;
public long value;
}
public static dynamic handler(Input __koru_input) {
var field = __koru_input.field;
var value = __koru_input.value;
var result_0 = main_module.app_lib_arena___store_apply_game_event.handler(new app_lib_arena___store_apply_game_event.Input { field = (long)(field), value = (long)(value)});
var _auto_6 = result_0.hp;
return default;
}
}
public static class app_lib_arena___store_announce_game_event {
public struct Input {
public long field;
}
public static dynamic handler(Input __koru_input) {
var field = __koru_input.field;
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() {
main_module.app_lib_arena_seed_event.handler(new app_lib_arena_seed_event.Input { });
}
public static void flow1() {
__koru_stdout_write("hp " + __koru_str(__koru_store_game.hp) + "\n");
}
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();
}
}
Flows
flow ~seed click a branch to expand · @labels scroll to their anchor
seed
flow ~print.ln click a branch to expand · @labels scroll to their anchor
print.ln (expr: "hp {{ game.hp:d }}")
Test Configuration
MUST_RUN LANGUAGES: zig cs