a48cebc4b8
Wrap coroutine variant fields in MaybeUninit to indicate that they
might be uninitialized. Otherwise an uninhabited field will make
the entire variant uninhabited and introduce undefined behaviour.
The analogous issue in the prefix of coroutine layout was addressed by
6fae7f8071.
75 lines
4.6 KiB
Plaintext
75 lines
4.6 KiB
Plaintext
print-type-size type: `{async fn body@$DIR/async-awaiting-fut.rs:21:21: 24:2}`: 3078 bytes, alignment: 1 bytes
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print-type-size discriminant: 1 bytes
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print-type-size variant `Unresumed`: 0 bytes
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print-type-size variant `Suspend0`: 3077 bytes
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print-type-size local `.__awaitee`: 3077 bytes
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print-type-size variant `Returned`: 0 bytes
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print-type-size variant `Panicked`: 0 bytes
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print-type-size type: `std::mem::ManuallyDrop<{async fn body@$DIR/async-awaiting-fut.rs:10:64: 19:2}>`: 3077 bytes, alignment: 1 bytes
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print-type-size field `.value`: 3077 bytes
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print-type-size type: `std::mem::MaybeUninit<{async fn body@$DIR/async-awaiting-fut.rs:10:64: 19:2}>`: 3077 bytes, alignment: 1 bytes
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print-type-size variant `MaybeUninit`: 3077 bytes
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print-type-size field `.uninit`: 0 bytes
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print-type-size field `.value`: 3077 bytes
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print-type-size type: `{async fn body@$DIR/async-awaiting-fut.rs:10:64: 19:2}`: 3077 bytes, alignment: 1 bytes
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print-type-size discriminant: 1 bytes
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print-type-size variant `Unresumed`: 1025 bytes
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print-type-size upvar `.fut`: 1025 bytes, offset: 0 bytes, alignment: 1 bytes
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print-type-size variant `Suspend0`: 2052 bytes
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print-type-size upvar `.fut`: 1025 bytes, offset: 0 bytes, alignment: 1 bytes
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print-type-size padding: 1 bytes
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print-type-size local `.fut`: 1025 bytes, alignment: 1 bytes
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print-type-size local `..coroutine_field4`: 1 bytes
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print-type-size local `.__awaitee`: 1 bytes
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print-type-size variant `Suspend1`: 3076 bytes
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print-type-size upvar `.fut`: 1025 bytes, offset: 0 bytes, alignment: 1 bytes
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print-type-size padding: 1026 bytes
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print-type-size local `..coroutine_field4`: 1 bytes, alignment: 1 bytes
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print-type-size local `.__awaitee`: 1025 bytes
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print-type-size variant `Suspend2`: 2052 bytes
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print-type-size upvar `.fut`: 1025 bytes, offset: 0 bytes, alignment: 1 bytes
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print-type-size padding: 1 bytes
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print-type-size local `.fut`: 1025 bytes, alignment: 1 bytes
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print-type-size local `..coroutine_field4`: 1 bytes
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print-type-size local `.__awaitee`: 1 bytes
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print-type-size variant `Returned`: 1025 bytes
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print-type-size upvar `.fut`: 1025 bytes, offset: 0 bytes, alignment: 1 bytes
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print-type-size variant `Panicked`: 1025 bytes
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print-type-size upvar `.fut`: 1025 bytes, offset: 0 bytes, alignment: 1 bytes
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print-type-size type: `std::mem::ManuallyDrop<{async fn body@$DIR/async-awaiting-fut.rs:8:35: 8:37}>`: 1025 bytes, alignment: 1 bytes
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print-type-size field `.value`: 1025 bytes
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print-type-size type: `std::mem::MaybeUninit<{async fn body@$DIR/async-awaiting-fut.rs:8:35: 8:37}>`: 1025 bytes, alignment: 1 bytes
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print-type-size variant `MaybeUninit`: 1025 bytes
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print-type-size field `.uninit`: 0 bytes
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print-type-size field `.value`: 1025 bytes
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print-type-size type: `{async fn body@$DIR/async-awaiting-fut.rs:8:35: 8:37}`: 1025 bytes, alignment: 1 bytes
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print-type-size discriminant: 1 bytes
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print-type-size variant `Unresumed`: 1024 bytes
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print-type-size upvar `.arg`: 1024 bytes
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print-type-size variant `Returned`: 1024 bytes
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print-type-size upvar `.arg`: 1024 bytes
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print-type-size variant `Panicked`: 1024 bytes
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print-type-size upvar `.arg`: 1024 bytes
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print-type-size type: `std::mem::ManuallyDrop<bool>`: 1 bytes, alignment: 1 bytes
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print-type-size field `.value`: 1 bytes
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print-type-size type: `std::mem::ManuallyDrop<{async fn body@$DIR/async-awaiting-fut.rs:6:17: 6:19}>`: 1 bytes, alignment: 1 bytes
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print-type-size field `.value`: 1 bytes
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print-type-size type: `std::mem::MaybeUninit<bool>`: 1 bytes, alignment: 1 bytes
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print-type-size variant `MaybeUninit`: 1 bytes
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print-type-size field `.uninit`: 0 bytes
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print-type-size field `.value`: 1 bytes
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print-type-size type: `std::mem::MaybeUninit<{async fn body@$DIR/async-awaiting-fut.rs:6:17: 6:19}>`: 1 bytes, alignment: 1 bytes
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print-type-size variant `MaybeUninit`: 1 bytes
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print-type-size field `.uninit`: 0 bytes
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print-type-size field `.value`: 1 bytes
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print-type-size type: `std::task::Poll<()>`: 1 bytes, alignment: 1 bytes
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print-type-size discriminant: 1 bytes
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print-type-size variant `Ready`: 0 bytes
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print-type-size field `.0`: 0 bytes
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print-type-size variant `Pending`: 0 bytes
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print-type-size type: `{async fn body@$DIR/async-awaiting-fut.rs:6:17: 6:19}`: 1 bytes, alignment: 1 bytes
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print-type-size discriminant: 1 bytes
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print-type-size variant `Unresumed`: 0 bytes
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print-type-size variant `Returned`: 0 bytes
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print-type-size variant `Panicked`: 0 bytes
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