nested depth 3

// ============================================================================
// VERIFIED REGRESSION TEST - DO NOT MODIFY WITHOUT DISCUSSION
// ============================================================================
// Test: Nested Continuation Depth 3
// Feature: Flow with 3 levels of nested continuations
// Verifies: Deeper nesting works (exposes bootstrap recursion limit)
// Depth: start |> level1 |> level2 |> level3 → result
//
// EXPECTED BUG:
// Bootstrap manually generates inline flow helpers and only handles 2 levels.
// This test will likely fail for proc inline flows until bootstrap uses emitter_lib.
// ============================================================================

const std = @import("std");

~event add_one { value: i32 }
| done { result: i32 }

~proc add_one = done { result: value + 1 }

~event add_two { value: i32 }
| done { result: i32 }

~proc add_two = done { result: value + 2 }

~event add_three { value: i32 }
| done { result: i32 }

~proc add_three = done { result: value + 3 }

// Chain: start → add_one → add_two → add_three → result
// Depth 3: Three nested continuations
~event chain { start: i32 }
| done { result: i32 }

~proc chain = add_one(value: start)
| done a |> add_two(value: a.result)
    | done b |> add_three(value: b.result)
        | done c |> done { result: c.result }

// Test: 10 + 1 + 2 + 3 = 16
pub fn main() void {
    const result = chain_event.handler(.{ .start = 10 });
    std.debug.print("{}\n", .{result.done.result});
}