309 store step pump

// 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 and !@import("builtin").cpu.arch.isWasm()) __koru_bare.allocator else @import("std").heap.page_allocator;
var __koru_leak_count: @import("std").atomic.Value(usize) = .init(0);
var __koru_par_tasks: @import("std").atomic.Value(usize) = .init(0);
const __koru_par_CAP: usize = 128;
threadlocal var __koru_par_depth: usize = 0;
const __koru_par_DEPTH_CAP: usize = 7;
var __koru_par_pool: @import("std").Thread.Pool = undefined;
var __koru_par_pool_ready: bool = false;
var __koru_par_pool_mtx: @import("std").Thread.Mutex = .{};
fn __koru_par_pool_ensure() *@import("std").Thread.Pool {
    __koru_par_pool_mtx.lock();
    defer __koru_par_pool_mtx.unlock();
    if (!__koru_par_pool_ready) {
        @import("std").Thread.Pool.init(&__koru_par_pool, .{ .allocator = @import("std").heap.smp_allocator }) catch @panic("koru: thread pool init failed");
        __koru_par_pool_ready = true;
    }
    return &__koru_par_pool;
}
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));
}

fn __KoruPadI(comptime T: type) type {
    const V = switch (@typeInfo(T)) { .comptime_int => i64, .comptime_float => f64, else => T };
    return struct {
        v: V,
        width: usize,
        pub fn format(self: @This(), w: *@import("std").Io.Writer) @import("std").Io.Writer.Error!void {
            const rendered = @import("std").fmt.count("{d}", .{self.v});
            const pad = self.width -| rendered;
            for (0..pad) |_| try w.writeByte(' ');
            try w.print("{d}", .{self.v});
        }
    };
}
pub fn __koru_pad_i(width: usize, value: anytype) __KoruPadI(@TypeOf(value)) {
    return .{ .v = value, .width = width };
}

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 'fast' created (SoA cell + insert/query/write/take/stripe units); fields __koru_value: *lib/srclib:Src<live!>
    // std/store: plural store 'slow' created (SoA cell + insert/query/write/take/stripe units); fields __koru_value: *lib/srclib:Src<live!>
    // >>> FLOW: tests/regression/600_STDLIB/690_STORE/690_309_store_step_pump/input.k:37  ~lib.srclib:open()
    pub fn flow0() void {
        const a = koru_lib.koru_srclib.open_event.handler(.{ .id = 1, .work = 2 });
        const result_1 = main_module.__store_insertf_fast_event.handler(.{ .__koru_value = a, .__site_line = 37 });
        _ = &result_1;
        switch (result_1) {
            // >>> BRANCH: tests/regression/600_STDLIB/690_STORE/690_309_store_step_pump/input.k:38  | row _auto_6 |>
            .row => |_| {
            },
            // >>> BRANCH: tests/regression/600_STDLIB/690_STORE/690_309_store_step_pump/input.k:39  | full f |>
            .full => |f| {
                const id = koru_lib.koru_srclib.close_event.handler(.{ .s = f });
                _ = &id;
                (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("dropped {d}\n", .{id});
            },
        }
    }
    // >>> FLOW: tests/regression/600_STDLIB/690_STORE/690_309_store_step_pump/input.k:41  ~lib.srclib:open()
    pub fn flow1() void {
        const b = koru_lib.koru_srclib.open_event.handler(.{ .id = 2, .work = 3 });
        const result_1 = main_module.__store_insertf_slow_event.handler(.{ .__koru_value = b, .__site_line = 41 });
        _ = &result_1;
        switch (result_1) {
            // >>> BRANCH: tests/regression/600_STDLIB/690_STORE/690_309_store_step_pump/input.k:42  | row _auto_7 |>
            .row => |_| {
            },
            // >>> BRANCH: tests/regression/600_STDLIB/690_STORE/690_309_store_step_pump/input.k:43  | full f |>
            .full => |f| {
                const id = koru_lib.koru_srclib.close_event.handler(.{ .s = f });
                _ = &id;
                (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("dropped {d}\n", .{id});
            },
        }
    }
    // >>> FLOW: tests/regression/600_STDLIB/690_STORE/690_309_store_step_pump/input.k:56  ~input:__pump_run_main()
    pub fn flow2() void {
        const __koru_eff_disc_0: main_module.__pump_run_main_event.Output = __koru_proc_0: {
            while (true) {
    var __koru_live: i64 = 0;
    __koru_live += main_module.__pump_main_live_0_event.handler(.{});
    __koru_live += main_module.__pump_main_live_1_event.handler(.{});
    if (__koru_live == 0) break;
    var __koru_worked: i64 = 0;
    __koru_worked += main_module.__pump_main_step_0_event.handler(.{});
    __koru_worked += main_module.__pump_main_step_1_event.handler(.{});
    if (__koru_worked == 0) { if (false) { _ = {}; } else {
        @import("std").Thread.sleep(1_000_000);
    } }
}
main_module.__pump_drained_main_event.handler(.{});
break :__koru_proc_0;

        };
        _ = __koru_eff_disc_0;
    }
    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_fast = struct {
    __koru_value: [2]*koru_lib.koru_srclib.Src = undefined,
    len: usize = 0,
    __koru_hslot_row: [2]usize = undefined,
    __koru_hslot_gen: [2]u32 = [_]u32{0} ** 2,
    __koru_row_hslot: [2]usize = undefined,
    __koru_hslot_free: [2]usize = undefined,
    __koru_hslot_free_len: usize = 0,
    __koru_hslot_next: usize = 0,
    // `__koru_ident` — no removal has run, so slot == dense row
    // for every live row; mint/resolve skip both table loads, the
    // first take materialises and flips it, drain and clear
    // re-arm it by resetting the slot space. `__koru_gen0` — no gen
    // bump has ever run; it implies slot == row for every minted
    // slot, so resolve sheds the gen load entirely.
    __koru_ident: bool = true, __koru_gen0: bool = true,
    const __koru_brand: u32 = 1;
    fn __koru_materialize(self: *@This()) void {
        if (!self.__koru_ident) return;
        for (0..self.len) |i| { self.__koru_hslot_row[i] = i; self.__koru_row_hslot[i] = i; }
        self.__koru_ident = false;
    }
    fn __koru_row_of(self: *const @This(), h: i64) ?usize {
        if (h < 0) return null;
        const u = @as(u64, @bitCast(h));
        const slot32 = @as(u32, @truncate(u));
        if ((slot32 >> 24) != __koru_brand) return null;
        const slot = @as(usize, @intCast(slot32 & 0xFFFFFF));
        if (slot >= self.__koru_hslot_next) return null;
        if (self.__koru_gen0) { if (u >> 32 != 0) return null; return slot; }
        if (@as(u32, @truncate(u >> 32)) != self.__koru_hslot_gen[slot]) return null;
        if (self.__koru_ident) return slot;
        const __koru_r = self.__koru_hslot_row[slot];
        if (__koru_r >= self.len) return null;
        return __koru_r;
    }
    // DO NOT "simplify" into one pass — pre-check + row_of tail
    // call keeps resolve under the inline threshold; callers
    // inline BOTH and LLVM CSEs the duplicate checks into one
    // validation in machine code. A flat single pass crossed
    // the threshold: +57% read_handle, +2.6x write_handle
    // (007 board, 2026-09-26). Shape, not count.
    fn __koru_resolve(self: *const @This(), h: i64) usize {
        if (h >= 0) {
            const u = @as(u64, @bitCast(h));
            const slot32 = @as(u32, @truncate(u));
            if ((slot32 >> 24) != __koru_brand) @panic("std/store: 'fast[...]' does not address a row - the value is not a handle this store issued (handles come from `| row` and row cursors)");
            const slot = @as(usize, @intCast(slot32 & 0xFFFFFF));
            if (self.__koru_gen0) {
                if (u >> 32 != 0 and slot < self.__koru_hslot_next) @panic("std/store: stale row handle into store 'fast' - the row it addressed was removed (stale-handle trap pinned at 690_115)");
            } else if (slot < self.__koru_hslot_next and @as(u32, @truncate(u >> 32)) != self.__koru_hslot_gen[slot]) @panic("std/store: stale row handle into store 'fast' - the row it addressed was removed (stale-handle trap pinned at 690_115)");
        }
        return self.__koru_row_of(h) orelse @panic("std/store: 'fast[...]' does not address a row - the value is not a handle this store issued (handles come from `| row` and row cursors)");
    }
    fn __koru_handle_of(self: *const @This(), dense: usize) i64 {
        if (self.__koru_gen0) return @as(i64, @intCast(dense | (@as(usize, __koru_brand) << 24)));
        var slot = dense;
        if (!self.__koru_ident) slot = self.__koru_row_hslot[dense];
        return @as(i64, @intCast(slot | (@as(usize, __koru_brand) << 24))) | (@as(i64, @intCast(self.__koru_hslot_gen[slot])) << 32);
    }
};
var __koru_store_fast: __KoruStoreT_fast = .{};
const __KoruStoreRow_fast = struct { __koru_value: *koru_lib.koru_srclib.Src };
    pub const __store_insertf_fast_event = struct {
        pub const Input = struct {
            __koru_value: *koru_lib.koru_srclib.Src,
            __site_line: i64,
        };
        pub const Output = union(enum(u8)) {
            row: i64,
            full: *koru_lib.koru_srclib.Src,
        };
        pub fn handler(__koru_event_input: @This().Input) @This().Output {
            // >>> PROC: __store_insertf_fast  [tests/regression/600_STDLIB/690_STORE/690_309_store_step_pump/input.k:27]
            const __koru_value = __koru_event_input.__koru_value;
            const __site_line = __koru_event_input.__site_line;
            _ = &__koru_value;
            _ = &__site_line;
            _ = &__koru_event_input;
            if (__koru_store_fast.len >= 2) return .{ .full = __koru_value };
            if (__koru_store_fast.len >= 2) @panic("std/store: store 'fast' is full (capacity 2) - declared capacity and the `| full` branch are pinned at 690_011");
            const __koru_new_row = __koru_store_fast.len;
            const __koru_hslot = if (__koru_store_fast.__koru_hslot_free_len > 0) blk_hs: {
                __koru_store_fast.__koru_hslot_free_len -= 1;
                break :blk_hs __koru_store_fast.__koru_hslot_free[__koru_store_fast.__koru_hslot_free_len];
            } else blk_hs: {
                const __koru_hn = __koru_store_fast.__koru_hslot_next;
                __koru_store_fast.__koru_hslot_next += 1;
                break :blk_hs __koru_hn;
            };
            if (!__koru_store_fast.__koru_ident) {
                __koru_store_fast.__koru_hslot_row[__koru_hslot] = __koru_new_row;
                __koru_store_fast.__koru_row_hslot[__koru_new_row] = __koru_hslot;
            }
            __koru_store_fast.__koru_value[__koru_new_row] = __koru_value;
            __koru_store_fast.len += 1;
            return .{ .row = __koru_store_fast.__koru_handle_of(__koru_new_row) };

        }
    };
    pub const __store_stepbody_fast_event = struct {
        pub const Input = struct {
            s: *koru_lib.koru_srclib.Src,
        };
        pub const Output = union(enum(u8)) {
            running: struct {
            },
            complete: struct {
            },
        };
        pub fn handler(__koru_event_input: @This().Input) @This().Output {
            // >>> SUBFLOW: tests/regression/600_STDLIB/690_STORE/690_309_store_step_pump/input.k:27
            const s = __koru_event_input.s;
            _ = &s;
            _ = &__koru_event_input;
            const Handlers_sf = struct {
                fn moved(i: i64) void {
                    _ = &i;
                    {
                        (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("fast moved {d}\n", .{i});
                    }
                }
            };
            const result = koru_lib.koru_srclib.step_event.handler(.{ .s = s }, Handlers_sf);
            return switch (result) {
                .complete => .{ .complete = .{ } },
                .running => .{ .running = .{ } },
            };
        }
    };
    pub const __store_dischargeone_fast_event = struct {
        pub const Input = struct {
            s: *koru_lib.koru_srclib.Src,
        };
        pub const Output = void;
        pub fn handler(__koru_event_input: @This().Input) @This().Output {
            // >>> SUBFLOW: tests/regression/600_STDLIB/690_STORE/690_309_store_step_pump/input.k:27
            const s = __koru_event_input.s;
            _ = &s;
            _ = &__koru_event_input;
            const result = koru_lib.koru_srclib.close_event.handler(.{ .s = s });
            const id = result;
            _ = &result;
(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: ?*anyopa

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