021 auto discharge multiple resources

✓ Passing This code compiles and runs correctly.

Code

// TEST: Auto-discharge with MULTIPLE nested resources
//
// Open TWO files in nested continuations.
// User closes SECOND file explicitly, but leaves FIRST for auto-discharge.
//
// Expected: Second is closed explicitly, first is auto-closed

~import "$app/fs"

const std = @import("std");

// Open first file (use _ for auto-discharge)
// Then open second, close it explicitly
// The outer file should be auto-closed at the terminal
~app.fs:open(path: "first.txt")
| opened _ |>
    app.fs:open(path: "second.txt")
    | opened f2 |>
        app.fs:close(file: f2.file)
        | closed |> _

pub fn main() void {}

input.kz

Expected Output

Opening: first.txt
Opening: second.txt
Closing file
Closing file

Imported Files

const std = @import("std");
const File = struct { handle: i32 };

~pub event open { path: []const u8 }
| opened { file: *File[opened!] }

~proc open {
    std.debug.print("Opening: {s}\n", .{path});
    const f = std.heap.page_allocator.create(File) catch unreachable;
    f.* = File{ .handle = 42 };
    return .{ .opened = .{ .file = f } };
}

~pub event close { file: *File[!opened] }
| closed {}

~proc close {
    std.debug.print("Closing file\n", .{});
    return .{ .closed = .{} };
}

fs.kz

Test Configuration

MUST_RUN

← 020 for manual each error 021 for auto done ok →