044 for manual done ok

✓ Passing This code compiles and runs correctly.

Code

import std/control
import app/fs
app/fs:open(path: "outer.txt"): f |> for(0..3)
    ! each _ |> _
    | done |> app/fs:close(file: f)

input.k

Actual

Opening file: outer.txt
Closing file

Expected output

Opening file: outer.txt
Closing file

Flows

flow ~open click a branch to expand · @labels scroll to their anchor

open (path: "outer.txt")

Imported Files

// Library module: fs
// Defines filesystem operations with cleanup obligations

const std = @import("std");

// File type with phantom states
const File = struct {
    handle: i32,
};

// Open a file - returns opened! state (requires cleanup)
~pub event open { path: []const u8 } -> *File<opened!>

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

// Close a file - CONSUMES opened! state (disposes the resource)
~pub event close { file: *File<!opened> }

~proc close|zig {
    std.debug.print("Closing file\n", .{});
}

fs.kz

Test Configuration

MUST_RUN

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