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fix docs for break from suspend

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Andrew Kelley 2018-07-30 13:07:04 -04:00
parent c91c781952
commit cfe03c764d
1 changed files with 6 additions and 6 deletions
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12
doc/langref.html.in
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@ -4665,24 +4665,24 @@ async fn testSuspendBlock() void {
block, while the old thread continued executing the suspend block.
</p>
<p>
However, if you use labeled <code>break</code> on the suspend block, the coroutine
However, the coroutine can be directly resumed from the suspend block, in which case it
never returns to its resumer and continues executing.
</p>
{#code_begin|test#}
const std = @import("std");
const assert = std.debug.assert;
test "break from suspend" {
test "resume from suspend" {
var buf: [500]u8 = undefined;
var a = &std.heap.FixedBufferAllocator.init(buf[0..]).allocator;
var my_result: i32 = 1;
const p = try async<a> testBreakFromSuspend(&my_result);
const p = try async<a> testResumeFromSuspend(&my_result);
cancel p;
std.debug.assert(my_result == 2);
}
async fn testBreakFromSuspend(my_result: *i32) void {
s: suspend |p| {
break :s;
async fn testResumeFromSuspend(my_result: *i32) void {
suspend |p| {
resume p;
}
my_result.* += 1;
suspend;