007 event taps nested

// Test 603b: Event Taps - Nested Flow Support
//
// Validates that event taps work even when events are called
// from within nested continuations (not just top-level flows).
//
// This test proves taps work in ALL contexts:
// - Top-level flows ✅ (test 603)
// - Nested continuations ✅ (this test)

const std = @import("std");
~import "$std/taps"

~event helper {}
| done {}

~proc helper {
    std.debug.print("Helper executed\n", .{});
    return .{ .done = .{} };
}

~event log_tap {}

~proc log_tap {
    std.debug.print("TAP executed from nested context!\n", .{});
}

// Tap that observes helper
~tap(helper -> *)
| done |> log_tap()

// Call helper from a NESTED context (inside a continuation)
~event outer {}
| done {}

~proc outer {
    return .{ .done = .{} };
}

~outer()
| done |> helper()
    | done |> _