010 array literal simple

// TEST: Simple array literal syntax in flow arguments
//
// Koru should support clean array literal syntax: [a, b, c]
// The compiler infers the element type from the parameter type.
//
// Expected: Compiles and runs, passing array to the event

const std = @import("std");

~event sum { numbers: []const i32 }
| result { total: i32 }

~proc sum {
    var total: i32 = 0;
    for (numbers) |n| {
        total += n;
    }
    return .{ .result = .{ .total = total } };
}

~event check { expected: i32, actual: i32 }

~proc check {
    if (expected != actual) {
        std.debug.print("FAIL: expected {}, got {}\n", .{ expected, actual });
        std.process.exit(1);
    }
    std.debug.print("PASS: {} == {}\n", .{ expected, actual });
}

// Use array literal syntax
~sum(numbers: [1, 2, 3, 4])
| result r |> check(expected: 10, actual: r.total)