024 shorthand field params

// Test shorthand parameter syntax with struct fields
// When passing t.field, should expand to field: t.field (not t.field: t.field)

const std = @import("std");

~event process {
    source: []const u8,
    branch: []const u8,
    destination: ?[]const u8,
}

~proc process|zig {
    std.debug.print("source={s} branch={s}\n", .{source, branch});
}

pub const Data = struct {
    source: []const u8,
    branch: []const u8,
    destination: ?[]const u8,
};

// Main flow: Use shorthand syntax (r.source) which should expand to (source: r.source)
~start()
| result r |> process(r.source, r.branch, r.destination)

~event start {}
| result Data

~proc start|zig {
    const data = Data{
        .source = "test_event",
        .branch = "success",
        .destination = null,
    };
    return .{ .result = data };
}