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