zig/test/cases/coroutine_await_struct.zig
Jimmi Holst Christensen 378d3e4403
Solve the return type ambiguity (#1628)
Changed container and initializer syntax
* <container> { ... } -> <container> . { ... }
* <exrp> { ... } -> <expr> . { ...}
2018-10-15 09:51:15 -04:00

48 lines
1.1 KiB
Zig

const std = @import("std");
const builtin = @import("builtin");
const assert = std.debug.assert;
const Foo = struct.{
x: i32,
};
var await_a_promise: promise = undefined;
var await_final_result = Foo.{ .x = 0 };
test "coroutine await struct" {
var da = std.heap.DirectAllocator.init();
defer da.deinit();
await_seq('a');
const p = async<&da.allocator> await_amain() catch unreachable;
await_seq('f');
resume await_a_promise;
await_seq('i');
assert(await_final_result.x == 1234);
assert(std.mem.eql(u8, await_points, "abcdefghi"));
}
async fn await_amain() void {
await_seq('b');
const p = async await_another() catch unreachable;
await_seq('e');
await_final_result = await p;
await_seq('h');
}
async fn await_another() Foo {
await_seq('c');
suspend {
await_seq('d');
await_a_promise = @handle();
}
await_seq('g');
return Foo.{ .x = 1234 };
}
var await_points = []u8.{0} ** "abcdefghi".len;
var await_seq_index: usize = 0;
fn await_seq(c: u8) void {
await_points[await_seq_index] = c;
await_seq_index += 1;
}