139 for stops at its keep condition

// 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);
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: 'w' created (cell + write-subflow at module scope); fields seen: i64, sum: i64
    // std/store: 'u' created (cell + write-subflow at module scope); fields n: i64
    pub const limited_event = struct {
        pub const Input = struct {
        };
        pub const Output = void;
        pub fn handler(__koru_event_input: @This().Input) @This().Output {
            // >>> SUBFLOW: tests/regression/320_CONTROL_FLOW/320_139_for_stops_at_its_keep_condition/input.k:38
            _ = &__koru_event_input;
            
    for (0..20) |__koru_item3| {
        if (!(__koru_store_w.seen < 5)) break;
        { const i = __koru_item3; _ = &i;             const result_e0_0 = main_module.__store_envwrite_w_event.handler(.{ .field = @as(i64, @bitCast(@as(u64, 1) << 0)), .value = __koru_store_w.seen + 1 });
            _ = &result_e0_0;
            const result_e0_1 = main_module.__store_envwrite_w_event.handler(.{ .field = @as(i64, @bitCast(@as(u64, 1) << 1)), .value = __koru_store_w.sum + __koru_intcast(i64, i) });
            _ = &result_e0_1;
            const result_e0_2 = main_module.__store_announce_w_event.handler(.{ .field = 0 });
            _ = &result_e0_2;
            _ = main_module.__store_announce_w_event.handler(.{ .field = 1 });
 }
        
    }
    {  }
        }
    };
    pub const full_event = struct {
        pub const Input = struct {
        };
        pub const Output = void;
        pub fn handler(__koru_event_input: @This().Input) @This().Output {
            // >>> SUBFLOW: tests/regression/320_CONTROL_FLOW/320_139_for_stops_at_its_keep_condition/input.k:44
            _ = &__koru_event_input;
            
    for (0..20) |__koru_item4| {
        if (!(1 == 1)) break;
        { const _auto_7 = __koru_item4; _ = &_auto_7;             _ = main_module.__store_write_u_event.handler(.{ .field = 0, .value = __koru_store_u.n + 1 });
 }
        
    }
    {  }
        }
    };
    // >>> FLOW: tests/regression/320_CONTROL_FLOW/320_139_for_stops_at_its_keep_condition/input.k:47  ~input:limited()
    pub fn flow0() void {
        _ = main_module.limited_event.handler(.{  });
        const result_1 = main_module.full_event.handler(.{  });
        _ = &result_1;
        (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("stopped seen {d} sum {d} full {d}\n", .{__koru_store_w.seen, __koru_store_w.sum, __koru_store_u.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_w = blk: {
    const __info = @typeInfo(@TypeOf(.{ .seen = @as(i64, 0), .sum = @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_w: __KoruStoreT_w = .{ .seen = @as(i64, 0), .sum = @as(i64, 0) };
    pub const __store_apply_w_event = struct {
        pub const Input = struct {
            field: i64,
            value: i64,
        };
        pub const Output = union(enum(u8)) {
            seen: i64,
            sum: i64,
        };
        pub fn handler(__koru_event_input: @This().Input) @This().Output {
            // >>> PROC: __store_apply_w  [tests/regression/320_CONTROL_FLOW/320_139_for_stops_at_its_keep_condition/input.k:32]
            const field = __koru_event_input.field;
            const value = __koru_event_input.value;
            _ = &field;
            _ = &value;
            _ = &__koru_event_input;
            return switch (field) {
                0 => blk: { __koru_store_w.seen = value; break :blk .{ .seen = value }; },
                1 => blk: { __koru_store_w.sum = value; break :blk .{ .sum = value }; },
                else => unreachable,
            };

        }
    };
    pub const __store_announce_w_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_w  [tests/regression/320_CONTROL_FLOW/320_139_for_stops_at_its_keep_condition/input.k:32]
            const field = __koru_event_input.field;
            _ = &field;
            _ = &__koru_event_input;
            return;

        }
    };
    pub const __store_envwrite_w_event = struct {
        pub const Input = struct {
            field: i64,
            value: i64,
        };
        pub const Output = void;
        pub fn handler(__koru_event_input: @This().Input) @This().Output {
            // >>> PROC: __store_envwrite_w  [tests/regression/320_CONTROL_FLOW/320_139_for_stops_at_its_keep_condition/input.k:32]
            const field = __koru_event_input.field;
            const value = __koru_event_input.value;
            _ = &field;
            _ = &value;
            _ = &__koru_event_input;
            const __koru_mask = @as(u64, @bitCast(field));
            if (__koru_mask & (@as(u64, 1) << 0) != 0) __koru_store_w.seen = value;
            if (__koru_mask & (@as(u64, 1) << 1) != 0) __koru_store_w.sum = value;
            return;

        }
    };
    const __KoruStoreT_u = blk: {
    const __info = @typeInfo(@TypeOf(.{ .n = @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_u: __KoruStoreT_u = .{ .n = @as(i64, 0) };
    pub const __store_apply_u_event = struct {
        pub const Input = struct {
            field: i64,
            value: i64,
        };
        pub const Output = union(enum(u8)) {
            n: i64,
        };
        pub fn handler(__koru_event_input: @This().Input) @This().Output {
            // >>> PROC: __store_apply_u  [tests/regression/320_CONTROL_FLOW/320_139_for_stops_at_its_keep_condition/input.k:33]
            const field = __koru_event_input.field;
            const value = __koru_event_input.value;
            _ = &field;
            _ = &value;
            _ = &__koru_event_input;
            return switch (field) {
                0 => blk: { __koru_store_u.n = value; break :blk .{ .n = value }; },
                else => unreachable,
            };

        }
    };
    pub const __store_write_u_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: tests/regression/320_CONTROL_FLOW/320_139_for_stops_at_its_keep_condition/input.k:33
            const field = __koru_event_input.field;
            const value = __koru_event_input.value;
            _ = &field;
            _ = &value;
            _ = &__koru_event_input;
            const result = main_module.__store_apply_u_event.handler(.{ .field = field,  .value = value });
            return switch (result) {
                .n => {},
            };
        }
    };
    pub const __store_announce_u_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_u  [tests/regression/320_CONTROL_FLOW/320_139_for_stops_at_its_keep_condition/input.k:33]
            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.koru_end_flow();
    if (comptime @import("builtin").mode == .Debug) koru_leak_check();
}

test {
    @import("std").testing.refAllDeclsRecursive(@This());
}

static class main_module {
  public static void __koru_stdout_write(object s) => global::System.Console.Out.Write(s);
  public static void __koru_stderr_write(object 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. `object`, not
  // `dynamic`: the field is storage — every `x.data` read reaches
  // it through a dynamic-typed handle (`*T` Input fields, the
  // `dynamic` borrow locals below), so the member itself only
  // needs to hold the value, and `object` keeps the DLR out of
  // the store/load path.
  public class __KoruBox { public object 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: 'w' created (cell + write-subflow at module scope); fields seen: i64, sum: i64
  // std/store: 'u' created (cell + write-subflow at module scope); fields n: i64
  static class __koru_store_w {
    public static long seen = 0;
    public static long sum = 0;
    public static long __koru_brand = -1;
}
  static class __koru_store_u {
    public static long n = 0;
    public static long __koru_brand = -1;
}
  public static class limited_event {
    public struct Input {
    }
    public static object handler(Input __koru_input) {
for (long __koru_item3 = 0; __koru_item3 < 20; __koru_item3++) {
        if (!(__koru_store_w.seen < 5)) break;
        { var i = __koru_item3;         {
          var __koru_p_field = (long)((long)((long)((ulong)((ulong)(1) << 0))));
          var __koru_p_value = (long)(__koru_store_w.seen + 1);
          var __koru_mask = (ulong)__koru_p_field;
          if ((__koru_mask & (1UL << 0)) != 0) __koru_store_w.seen = __koru_p_value;
          if ((__koru_mask & (1UL << 1)) != 0) __koru_store_w.sum = __koru_p_value;
        }
        {
          var __koru_p_field = (long)((long)((long)((ulong)((ulong)(1) << 1))));
          var __koru_p_value = (long)(__koru_store_w.sum + (long)((i)));
          var __koru_mask = (ulong)__koru_p_field;
          if ((__koru_mask & (1UL << 0)) != 0) __koru_store_w.seen = __koru_p_value;
          if ((__koru_mask & (1UL << 1)) != 0) __koru_store_w.sum = __koru_p_value;
        }
        {
          var __koru_p_field = (long)(0);

        }
        {
          var __koru_p_field = (long)(1);

        }
 }
        
    }
    {  }

      return default;

    }
  }
  public static class full_event {
    public struct Input {
    }
    public static object handler(Input __koru_input) {
for (long __koru_item4 = 0; __koru_item4 < 20; __koru_item4++) {
        if (!(1 == 1)) break;
        { var _auto_7 = __koru_item4;         main_module.__store_write_u_event.handler(new __store_write_u_event.Input { field = (long)(0), value = (long)(__koru_store_u.n + 1)});
 }
        
    }
    {  }

      return default;

    }
  }
  public static class __store_apply_w_event {
    public struct Input {
      public long field;
      public long value;
    }
    public struct Output {
      public string tag;
      public long seen;
      public long sum;
    }
    public static Output handler(Input __koru_input) {
      var field = __koru_input.field;
      var value = __koru_input.value;
      switch (field) {
      case 0: { __koru_store_w.seen = value; return new Output { tag = "seen", seen = value }; }
      case 1: { __koru_store_w.sum = value; return new Output { tag = "sum", sum = value }; }
      }
      throw new global::System.Exception("__store_apply_w: field index " + field + " is not a column of store 'w'");

      return default;

    }
  }
  public static class __store_announce_w_event {
    public struct Input {
      public long field;
    }
    public static object handler(Input __koru_input) {
      var field = __koru_input.field;


      return default;

    }
  }
  public static class __store_envwrite_w_event {
    public struct Input {
      public long field;
      public long value;
    }
    public static object handler(Input __koru_input) {
      var field = __koru_input.field;
      var value = __koru_input.value;
      var __koru_mask = (ulong)field;
      if ((__koru_mask & (1UL << 0)) != 0) __koru_store_w.seen = value;
      if ((__koru_mask & (1UL << 1)) != 0) __koru_store_w.sum = value;

      return default;

    }
  }
  public static class __store_apply_u_event {
    public struct Input {
      public long field;
      public long value;
    }
    public struct Output {
      public string tag;
      public long n;
    }
    public static Output handler(Input __koru_input) {
      var field = __koru_input.field;
      var value = __koru_input.value;
      switch (field) {
      case 0: { __koru_store_u.n = value; return new Output { tag = "n", n = value }; }
      }
      throw new global::System.Exception("__store_apply_u: field index " + field + " is not a column of store 'u'");

      return default;

    }
  }
  public static class __store_write_u_event {
    public struct Input {
      public long field;
      public long value;
    }
    public static object handler(Input __koru_input) {
      var field = __koru_input.field;
      var value = __koru_input.value;
      var result_0 = main_module.__store_apply_u_event.handler(new __store_apply_u_event.Input { field = (long)(field), value = (long)(value)});
      var _auto_11 = result_0.n;

      return default;

    }
  }
  public static class __store_announce_u_event {
    public struct Input {
      public long field;
    }
    public static object handler(Input __koru_input) {
      var field = __koru_input.field;


      return default;

    }
  }
  public static class std_control_for_event {
    public struct Input {
      public string expr;
      public string keep;
    }
    public struct Output {
      public string tag;
      public object done;
    }
    public interface IOps {
      void each(dynamic __koru_arg);
    }
    public static Output handler<H>(Input __koru_input, H ops) where H : struct, IOps {
      void each(dynamic __koru_arg) => ops.each(__koru_arg);
      var expr = __koru_input.expr;
      var keep = __koru_input.keep;
      throw new global::System.Exception("for: |template| proc is inlined at call sites and must never be called");
    }
  }
  public static class koru_start_event {
    public struct Input {
    }
    public struct Output {
      public string tag;
      public object 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 object done;
    }
    public static Output handler(Input __koru_input) => new Output { tag = "done" };
  }
  public static void flow0() {
    main_module.limited_event.handler(new limited_event.Input { });
    main_module.full_event.handler(new full_event.Input { });
__koru_stdout_write("stopped seen " + __koru_str(__koru_store_w.seen) + " sum " + __koru_str(__koru_store_w.sum) + " full " + __koru_str(__koru_store_u.n) + "\n");
  }
  public static void flow1() {
    main_module.koru_start_event.handler(new koru_start_event.Input { });
  }
  public static void flow2() {
    main_module.koru_end_event.handler(new koru_end_event.Input { });
  }
}

static class Program {
  static void Main() {
    main_module.flow1();
    main_module.flow0();
    main_module.flow2();
  }
}