317 explain reports pump composition

✓ Passing This code compiles and runs correctly.

Code

input.k

Supporting Files

input.kcs

Actual · Zig

✓ pass
pump drained

Actual · C#

✗ cs-compile

Expected output

✓ Zig✗ C#
pump drained
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 {
    var ticked: i64 = 0;
    pub const step_event = struct {
        pub const Input = struct {
        };
        pub const Output = i32;
        pub fn handler(__koru_event_input: @This().Input) @This().Output {
            // >>> PROC: step  [tests/regression/600_STDLIB/690_STORE/690_317_explain_reports_pump_composition/input.kz:6]
            _ = &__koru_event_input;

                ticked += 1;
                return if (ticked < 3) 1 else 0;

        }
    };
    pub const live_event = struct {
        pub const Input = struct {
        };
        pub const Output = i64;
        pub fn handler(__koru_event_input: @This().Input) @This().Output {
            // >>> PROC: live  [tests/regression/600_STDLIB/690_STORE/690_317_explain_reports_pump_composition/input.kz:13]
            _ = &__koru_event_input;

                return @intFromBool(ticked < 3);

        }
    };
    pub const wait_event = struct {
        pub const Input = struct {
            i: i64,
        };
        pub const Output = i128;
        pub inline fn handler(__koru_event_input: @This().Input) @This().Output {
            return __koru_handler_impl(__koru_event_input.i);
        }
        fn __koru_handler_impl(__koru_p_0: i64) @This().Output {
            const __koru_event_input: @This().Input = .{ .i = __koru_p_0 };
            // >>> PROC: wait  [tests/regression/600_STDLIB/690_STORE/690_317_explain_reports_pump_composition/input.kz:19]
            const i = __koru_event_input.i;
            _ = &i;
            _ = &__koru_event_input;

                _ = &i;
                return 1_000_000;

        }
    };
    // >>> FLOW: tests/regression/600_STDLIB/690_STORE/690_317_explain_reports_pump_composition/input.k:22  ~input:__pump_run_main()
    pub fn flow0() 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(.{});
    if (__koru_live == 0) break;
    var __koru_worked: i64 = 0;
    __koru_worked += main_module.__pump_main_step_0_event.handler(.{});
    if (__koru_worked == 0) { if (false) { _ = {}; } else {
        var __koru_wait_ns: i128 = @import("std").math.maxInt(i128);
        const __koru_pfds = @import("std").heap.page_allocator.alloc(@import("std").posix.pollfd, @as(usize, @intCast(@max(__koru_live + 0, 1)))) catch unreachable;
        defer @import("std").heap.page_allocator.free(__koru_pfds);
        var __koru_nfd: usize = 0;
        for (0..@as(usize, @intCast(main_module.__pump_main_live_0_event.handler(.{})))) |__koru_wi| {
            const __koru_w = main_module.__pump_main_wait_0_event.handler(.{ .i = @intCast(__koru_wi) });
            if (__koru_w.fd >= 0) { __koru_pfds[__koru_nfd] = .{ .fd = __koru_w.fd, .events = @import("std").posix.POLL.IN, .revents = 0 }; __koru_nfd += 1; }
            if (__koru_w.wait_ns < __koru_wait_ns) __koru_wait_ns = __koru_w.wait_ns;
        }
        if (__koru_nfd == 0 and __koru_wait_ns == @import("std").math.maxInt(i128)) {
            @import("std").Thread.sleep(1_000_000);
        } else {
            var __koru_ms: i32 = -1;
            if (__koru_wait_ns != @import("std").math.maxInt(i128)) __koru_ms = @intCast(@min(@as(i128, @import("std").math.maxInt(i32)) * 1_000_000, @max(@as(i128, 0), __koru_wait_ns)) / 1_000_000);
            if (__koru_nfd > 0) {
                _ = @import("std").posix.poll(__koru_pfds[0..__koru_nfd], __koru_ms) catch 0;
            } else if (__koru_ms >= 0) {
                @import("std").Thread.sleep(@as(u64, @intCast(__koru_ms)) * 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;
    }
    pub const __pump_drained_main_event = struct {
        pub const Input = struct {
        };
        pub const Output = void;
        pub fn handler(__koru_event_input: @This().Input) @This().Output {
            // >>> SUBFLOW: tests/regression/600_STDLIB/690_STORE/690_317_explain_reports_pump_composition/input.k:14
            _ = &__koru_event_input;
            (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("pump drained\n", .{});
        }
    };
    pub const __pump_main_step_0_event = struct {
        pub const Input = struct {
        };
        pub const Output = i32;
        pub fn handler(__koru_event_input: @This().Input) @This().Output {
            // >>> SUBFLOW: tests/regression/600_STDLIB/690_STORE/690_317_explain_reports_pump_composition/input.k:17
            _ = &__koru_event_input;
            const result = main_module.step_event.handler(.{ });
            const __koru_r = result;
            _ = &result;
            return __koru_r;
        }
    };
    pub const __pump_main_live_0_event = struct {
        pub const Input = struct {
        };
        pub const Output = i64;
        pub fn handler(__koru_event_input: @This().Input) @This().Output {
            // >>> SUBFLOW: tests/regression/600_STDLIB/690_STORE/690_317_explain_reports_pump_composition/input.k:17
            _ = &__koru_event_input;
            const result = main_module.live_event.handler(.{ });
            const __koru_r = result;
            _ = &result;
            return __koru_r;
        }
    };
    pub const __pump_main_wait_0_event = struct {
        pub const Input = struct {
            i: i64,
        };
        pub const Output = struct { fd: i32, wait_ns: i128 };
        pub inline fn handler(__koru_event_input: @This().Input) @This().Output {
            return __koru_handler_impl(__koru_event_input.i);
        }
        fn __koru_handler_impl(__koru_p_0: i64) @This().Output {
            const __koru_event_input: @This().Input = .{ .i = __koru_p_0 };
            // >>> SUBFLOW: tests/regression/600_STDLIB/690_STORE/690_317_explain_reports_pump_composition/input.k:17
            const i = __koru_event_input.i;
            _ = &i;
            _ = &__koru_event_input;
            const result = main_module.wait_event.handler(.{ .i = i });
            const __koru_w = result;
            _ = &result;
            return .{ .fd = -1, .wait_ns = __koru_w };
        }
    };
    pub const __pump_run_main_event = struct {
        pub const Input = struct {
        };
        pub const Output = void;
        pub fn handler(__koru_event_input: @This().Input, comptime __H: type) @This().Output {
            const idle = if (@hasDecl(__H, "idle")) __H.idle else struct { fn __koru_noop() void {} }.__koru_noop;
            _ = &idle;
            // >>> PROC: __pump_run_main  [tests/regression/600_STDLIB/690_STORE/690_317_explain_reports_pump_composition/input.k:22]
            _ = &__koru_event_input;
            while (true) {
                var __koru_live: i64 = 0;
                __koru_live += main_module.__pump_main_live_0_event.handler(.{});
                if (__koru_live == 0) break;
                var __koru_worked: i64 = 0;
                __koru_worked += main_module.__pump_main_step_0_event.handler(.{});
                if (__koru_worked == 0) { if (@hasDecl(__H, "idle")) { idle(); } else {
                    var __koru_wait_ns: i128 = @import("std").math.maxInt(i128);
                    const __koru_pfds = @import("std").heap.page_allocator.alloc(@import("std").posix.pollfd, @as(usize, @intCast(@max(__koru_live + 0, 1)))) catch unreachable;
                    defer @import("std").heap.page_allocator.free(__koru_pfds);
                    var __koru_nfd: usize = 0;
                    for (0..@as(usize, @intCast(main_module.__pump_main_live_0_event.handler(.{})))) |__koru_wi| {
                        const __koru_w = main_module.__pump_main_wait_0_event.handler(.{ .i = @intCast(__koru_wi) });
                        if (__koru_w.fd >= 0) { __koru_pfds[__koru_nfd] = .{ .fd = __koru_w.fd, .events = @import("std").posix.POLL.IN, .revents = 0 }; __koru_nfd += 1; }
                        if (__koru_w.wait_ns < __koru_wait_ns) __koru_wait_ns = __koru_w.wait_ns;
                    }
                    if (__koru_nfd == 0 and __koru_wait_ns == @import("std").math.maxInt(i128)) {
                        @import("std").Thread.sleep(1_000_000);
                    } else {
                        var __koru_ms: i32 = -1;
                        if (__koru_wait_ns != @import("std").math.maxInt(i128)) __koru_ms = @intCast(@min(@as(i128, @import("std").math.maxInt(i32)) * 1_000_000, @max(@as(i128, 0), __koru_wait_ns)) / 1_000_000);
                        if (__koru_nfd > 0) {
                            _ = @import("std").posix.poll(__koru_pfds[0..__koru_nfd], __koru_ms) catch 0;
                        } else if (__koru_ms >= 0) {
                            @import("std").Thread.sleep(@as(u64, @intCast(__koru_ms)) * 1_000_000);
                        }
                    }
                } }
            }
            main_module.__pump_drained_main_event.handler(.{});
            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());
}

Test Configuration

MUST_RUN

Post-validation Script: