Printing a File struct fails on Linux

[shritesh]

This tries to compile windows specific functions and fails with compile errors.

const std = @import("std");

pub fn main() !void {
    var file = try std.fs.cwd().openFile("hello.txt", .{});
    defer file.close();

    std.debug.warn("{}\n", .{file});
}

Errors

/home/shritesh/zig/build/lib/zig/std/fs/file.zig:60:27: error: expected type 'i32', found '*c_void'
        return openHandle(handle);
                          ^
/home/shritesh/zig/build/lib/zig/std/fs/file.zig:102:27: error: expected type 'i32', found '*c_void'
        return openHandle(handle);
                          ^
/home/shritesh/zig/build/lib/zig/std/fs/file.zig:137:27: error: expected type 'i32', found '*c_void'
        return openHandle(handle);
                          ^
/home/shritesh/zig/build/lib/zig/std/fs/file.zig:160:18: error: container 'std.os' has no member called 'accessW'
        return os.accessW(path, os.F_OK);
                 ^
/home/shritesh/zig/build/lib/zig/std/os/windows.zig:69:28: error: dependency on dynamic library 'kernel32' requires enabling Position Independent Code
    const result = kernel32.CreateFileW(file_path_w, desired_access, share_mode, lpSecurityAttributes, creation_disposition, flags_and_attrs, hTemplateFile);
                           ^
/home/shritesh/zig/build/lib/zig/std/os/windows.zig:69:28: note: fixed by `--library kernel32` or `--enable-pic`
    const result = kernel32.CreateFileW(file_path_w, desired_access, share_mode, lpSecurityAttributes, creation_disposition, flags_and_attrs, hTemplateFile);
                           ^

[andrewrk]

I believe this will be solved by #2174

[andrewrk]

What's going on here is that @typeInfo forces all member functions of a struct to be generated, even ones that are otherwise never referenced. Instead of this, indeed, lazy values should be used to avoid this. Now that #2174 is implemented, the framework to fix this issue is in place.