Use scoped more in dotnet/runtime #71589
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This PR addresses a few issues:
- Exposes the new {ReadOnly}Span constructors that accept a ref.
- Uses those new constructors outside of corelib (they were previously internal and used only inside of corelib).
- Makes several members of Utf8JsonReader readonly in order to enable stackalloc'd spans to be used in ValueTextEquals calls.
- Makes several span arguments to SequenceReader scoped in order to enable stackalloc'd spans to be used with those calls.
- Removes all stackalloc T[0], replacing it with scoped locals.
- Removes some use of stackalloc'ing into a pointer and then manually wrapping into a span, instead directly stackalloc'ing into a span. This is possible now in more cases due to the new language validation rules.
- Replaced some use of MemoryMarshal.GetReference(MemoryMarshal.CreateSpan(...)) with Unsafe.AsRef.
stephentoub
requested review from
eiriktsarpalis,
cston,
ManickaP and
AaronRobinsonMSFT
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Note regarding the This serves as a reminder for when your PR is modifying a ref *.cs file and adding/modifying public APIs, to please make sure the API implementation in the src *.cs file is documented with triple slash comments, so the PR reviewers can sign off that change. |
ghost
assigned 
|
Tagging subscribers to this area: @dotnet/area-meta Issue DetailsThis PR addresses a few issues:
|
jkotas
reviewed
Jul 3, 2022
src/libraries/System.Net.Quic/src/System/Net/Quic/Implementations/MsQuic/Interop/msquic.cs
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jkotas
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Jul 3, 2022
src/libraries/Common/src/System/Security/Cryptography/RSAAndroid.cs
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src/libraries/System.Security.Cryptography/src/System/Security/Cryptography/XmlKeyHelper.cs
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src/libraries/System.Text.RegularExpressions/src/System/Text/RegularExpressions/RegexNode.cs
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src/libraries/System.Text.Json/src/System/Text/Json/Reader/Utf8JsonReader.cs
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...raries/System.Text.Json/src/System/Text/Json/Writer/Utf8JsonWriter.WriteProperties.String.cs
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cston
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AaronRobinsonMSFT
approved these changes
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This PR addresses a few issues:
{ReadOnly}Spanconstructors that accept a ref. Fixes [API Proposal]: {ReadOnly}Span(ref T) constructor #67445. Uses those new constructors outside of corelib (they were previously internal and used only inside of corelib).Utf8JsonReaderreadonlyand several span arguments toSequenceReaderscoped in order to enablestackalloc'd spans to be used in more call sites. Fixes Use readonly/scoped with existing ref structs that accept spans #71497.stackalloc T[0], replacing it with scoped locals.stackalloc'ing into a pointer and then manually wrapping into a span, instead directlystackalloc'ing into a span. This is possible now in more cases due to the new language validation rules.MemoryMarshal.GetReference(MemoryMarshal.CreateSpan(...))withUnsafe.AsRef.