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| author | Kevin Reid <kpreid@switchb.org> | 2024-03-22 16:45:32 -0700 |
|---|---|---|
| committer | Kevin Reid <kpreid@switchb.org> | 2024-03-22 18:07:15 -0700 |
| commit | 44d185b0d00c8ba228aafa789a39b77d7fd11daf (patch) | |
| tree | 69fc083bc2b5c525ecbb1df6539aa8b8e891693c /tests/ui/async-await/future-sizes | |
| parent | 85e449a3237e82c9ade8936a82bd4fc64cfe1057 (diff) | |
| download | rust-44d185b0d00c8ba228aafa789a39b77d7fd11daf.tar.gz rust-44d185b0d00c8ba228aafa789a39b77d7fd11daf.zip | |
-Zprint-type-sizes: print the types of awaitees and unnamed coroutine locals.
This should assist comprehending the size of coroutines. In particular, whenever a future is suspended while awaiting another future, the latter is given the special name `__awaitee`, and now the type of the awaited future will be printed, allowing identifying caller/callee — er, I mean, poller/pollee — relationships. It would be possible to include the type name in more cases, but I thought that that might be overly verbose (`print-type-sizes` is already a lot of text) and ordinary named fields or variables are easier for readers to discover the types of.
Diffstat (limited to 'tests/ui/async-await/future-sizes')
| -rw-r--r-- | tests/ui/async-await/future-sizes/async-awaiting-fut.stdout | 14 | ||||
| -rw-r--r-- | tests/ui/async-await/future-sizes/large-arg.stdout | 6 |
2 files changed, 10 insertions, 10 deletions
diff --git a/tests/ui/async-await/future-sizes/async-awaiting-fut.stdout b/tests/ui/async-await/future-sizes/async-awaiting-fut.stdout index 47b39e5246d..d6fb643702c 100644 --- a/tests/ui/async-await/future-sizes/async-awaiting-fut.stdout +++ b/tests/ui/async-await/future-sizes/async-awaiting-fut.stdout @@ -2,7 +2,7 @@ print-type-size type: `{async fn body@$DIR/async-awaiting-fut.rs:21:21: 24:2}`: print-type-size discriminant: 1 bytes print-type-size variant `Unresumed`: 0 bytes print-type-size variant `Suspend0`: 3077 bytes -print-type-size local `.__awaitee`: 3077 bytes +print-type-size local `.__awaitee`: 3077 bytes, type: {async fn body@$DIR/async-awaiting-fut.rs:10:64: 19:2} print-type-size variant `Returned`: 0 bytes print-type-size variant `Panicked`: 0 bytes print-type-size type: `std::mem::ManuallyDrop<{async fn body@$DIR/async-awaiting-fut.rs:10:64: 19:2}>`: 3077 bytes, alignment: 1 bytes @@ -19,19 +19,19 @@ print-type-size variant `Suspend0`: 2052 bytes print-type-size upvar `.fut`: 1025 bytes, offset: 0 bytes, alignment: 1 bytes print-type-size padding: 1 bytes print-type-size local `.fut`: 1025 bytes, alignment: 1 bytes -print-type-size local `..coroutine_field4`: 1 bytes -print-type-size local `.__awaitee`: 1 bytes +print-type-size local `..coroutine_field4`: 1 bytes, type: bool +print-type-size local `.__awaitee`: 1 bytes, type: {async fn body@$DIR/async-awaiting-fut.rs:6:17: 6:19} print-type-size variant `Suspend1`: 3076 bytes print-type-size upvar `.fut`: 1025 bytes, offset: 0 bytes, alignment: 1 bytes print-type-size padding: 1026 bytes -print-type-size local `..coroutine_field4`: 1 bytes, alignment: 1 bytes -print-type-size local `.__awaitee`: 1025 bytes +print-type-size local `..coroutine_field4`: 1 bytes, alignment: 1 bytes, type: bool +print-type-size local `.__awaitee`: 1025 bytes, type: {async fn body@$DIR/async-awaiting-fut.rs:8:35: 8:37} print-type-size variant `Suspend2`: 2052 bytes print-type-size upvar `.fut`: 1025 bytes, offset: 0 bytes, alignment: 1 bytes print-type-size padding: 1 bytes print-type-size local `.fut`: 1025 bytes, alignment: 1 bytes -print-type-size local `..coroutine_field4`: 1 bytes -print-type-size local `.__awaitee`: 1 bytes +print-type-size local `..coroutine_field4`: 1 bytes, type: bool +print-type-size local `.__awaitee`: 1 bytes, type: {async fn body@$DIR/async-awaiting-fut.rs:6:17: 6:19} print-type-size variant `Returned`: 1025 bytes print-type-size upvar `.fut`: 1025 bytes, offset: 0 bytes, alignment: 1 bytes print-type-size variant `Panicked`: 1025 bytes diff --git a/tests/ui/async-await/future-sizes/large-arg.stdout b/tests/ui/async-await/future-sizes/large-arg.stdout index 005460df626..589df102af4 100644 --- a/tests/ui/async-await/future-sizes/large-arg.stdout +++ b/tests/ui/async-await/future-sizes/large-arg.stdout @@ -2,7 +2,7 @@ print-type-size type: `{async fn body@$DIR/large-arg.rs:6:21: 8:2}`: 3076 bytes, print-type-size discriminant: 1 bytes print-type-size variant `Unresumed`: 0 bytes print-type-size variant `Suspend0`: 3075 bytes -print-type-size local `.__awaitee`: 3075 bytes +print-type-size local `.__awaitee`: 3075 bytes, type: {async fn body@$DIR/large-arg.rs:10:30: 12:2} print-type-size variant `Returned`: 0 bytes print-type-size variant `Panicked`: 0 bytes print-type-size type: `std::mem::ManuallyDrop<{async fn body@$DIR/large-arg.rs:10:30: 12:2}>`: 3075 bytes, alignment: 1 bytes @@ -17,7 +17,7 @@ print-type-size variant `Unresumed`: 1024 bytes print-type-size upvar `.t`: 1024 bytes print-type-size variant `Suspend0`: 3074 bytes print-type-size upvar `.t`: 1024 bytes -print-type-size local `.__awaitee`: 2050 bytes +print-type-size local `.__awaitee`: 2050 bytes, type: {async fn body@$DIR/large-arg.rs:13:26: 15:2} print-type-size variant `Returned`: 1024 bytes print-type-size upvar `.t`: 1024 bytes print-type-size variant `Panicked`: 1024 bytes @@ -34,7 +34,7 @@ print-type-size variant `Unresumed`: 1024 bytes print-type-size upvar `.t`: 1024 bytes print-type-size variant `Suspend0`: 2049 bytes print-type-size upvar `.t`: 1024 bytes -print-type-size local `.__awaitee`: 1025 bytes +print-type-size local `.__awaitee`: 1025 bytes, type: {async fn body@$DIR/large-arg.rs:16:26: 18:2} print-type-size variant `Returned`: 1024 bytes print-type-size upvar `.t`: 1024 bytes print-type-size variant `Panicked`: 1024 bytes |