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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 _ |> app/fs:close(file: f) // ERROR! Would run 3 times
| done |> _
Must contain:
KORU032Flows
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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 tor open { path: string } -> *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 tor close { file: *File<!opened> }
~proc close|zig {
std.debug.print("Closing file\n", .{});
}