032 nested for scopes

✓ Passing This code compiles and runs correctly.

Code

import std/control
import app/fs
app/fs:open(path: "outermost.txt"): outermost_f |> for(0..2)
    ! each _ |> for(0..2)
        ! each _ |> app/fs:open(path: "inner.txt"): _  // inner_f auto-closed here (innermost @scope)
        | done |> _
    | done |> app/fs:close(file: outermost_f)

input.k

Actual

Opening file: outermost.txt
Opening file: inner.txt
Closing file
Opening file: inner.txt
Closing file
Opening file: inner.txt
Closing file
Opening file: inner.txt
Closing file
Closing file

Expected output

Opening file: outermost.txt
Opening file: inner.txt
Closing file
Opening file: inner.txt
Closing file
Opening file: inner.txt
Closing file
Opening file: inner.txt
Closing file
Closing file

Flows

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

open (path: "outermost.txt")

Imported Files

// Library module: fs
// Single disposal event - auto-discharge should work

const std = @import("std");

const File = struct { handle: i32 };

// Open a file - returns opened! state (requires cleanup)
~pub tor open { path: string } -> *File<opened!>

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

// Close - the ONLY consumer of <!opened>
~pub tor close { file: *File<!opened> }

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

fs.kz

Test Configuration

MUST_RUN

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