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Use span-based overloads#11884

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iSazonov merged 3 commits intoPowerShell:masterfrom
iSazonov:cleanup-use-span-overloads
Mar 18, 2020
Merged

Use span-based overloads#11884
iSazonov merged 3 commits intoPowerShell:masterfrom
iSazonov:cleanup-use-span-overloads

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@iSazonov iSazonov commented Feb 19, 2020 •
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PR Summary

  • First commit - Use span-based overloads to reduce allocations.
  • Second commit - Use String.Contains() for readability.

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@iSazonov iSazonov added the CL-CodeCleanup Indicates that a PR should be marked as a Code Cleanup change in the Change Log label Feb 19, 2020
@iSazonov iSazonov added this to the 7.1.0-preview.1 milestone Feb 19, 2020
@iSazonov iSazonov requested a review from SteveL-MSFT February 19, 2020 11:07
SteveL-MSFT
SteveL-MSFT reviewed Feb 19, 2020
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src/System.Management.Automation/engine/ParameterBinderController.cs Outdated
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@SteveL-MSFT SteveL-MSFT Feb 19, 2020

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ToString() here results in an allocation, can we just update that method to accept a readonlyspan?

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@iSazonov iSazonov Feb 20, 2020 •
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No, it is used then in class ctor-s.

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@vexx32 vexx32 Feb 20, 2020

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ReadOnlySpan<char> typically is an implicit cast from string, isn't it?

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@iSazonov iSazonov Feb 21, 2020

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@vexx32 No, only string -> ReadOnlySpan

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@vexx32 vexx32 Feb 21, 2020 •
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Right, so if the method parameter is currently using string we should be able to change it to ReadOnlySpan<char> and have the implicit cast handle it, shouldn't we? Or am I missing some context here? 🙂

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@iSazonov iSazonov Feb 21, 2020

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I missing some context here

CreateParameterWithArgument() passes the string to a constructor so it makes no sense to convert to span here.

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iSazonov commented Feb 20, 2020

Added new commit.

@iSazonov iSazonov force-pushed the cleanup-use-span-overloads branch from 2627a51 to 372c510 Compare February 20, 2020 09:16
@iSazonov iSazonov force-pushed the cleanup-use-span-overloads branch from 372c510 to 3e3fad1 Compare March 9, 2020 17:31
SteveL-MSFT
SteveL-MSFT approved these changes Mar 9, 2020
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LGTM

daxian-dbw
daxian-dbw reviewed Mar 13, 2020
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src/Microsoft.Management.UI.Internal/ShowCommand/ViewModel/ModuleViewModel.cs Outdated
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@daxian-dbw daxian-dbw Mar 13, 2020

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Please use multiple statements for better readability, like

var filterSpan = filter.AsSpan(0, filter.Length - 2);
return commandName.AsSpan().Contains(filterSpan, StringComparison.OrdinalIgnoreCase);

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@iSazonov iSazonov Mar 13, 2020

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Fixed.

daxian-dbw
daxian-dbw reviewed Mar 13, 2020
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src/Microsoft.Management.UI.Internal/ShowCommand/ViewModel/ModuleViewModel.cs Outdated
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@daxian-dbw daxian-dbw Mar 13, 2020

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same here :)

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@iSazonov iSazonov Mar 13, 2020

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Fixed.

@iSazonov iSazonov force-pushed the cleanup-use-span-overloads branch from 3e3fad1 to 5d7aeed Compare March 13, 2020 06:57
@iSazonov iSazonov merged commit b5d4739 into PowerShell:master Mar 18, 2020
@iSazonov iSazonov deleted the cleanup-use-span-overloads branch March 18, 2020 13:39
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ghost commented Mar 26, 2020

🎉v7.1.0-preview.1 has been released which incorporates this pull request.:tada:

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@iSazonov iSazonov mentioned this pull request Oct 29, 2020
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@iSazonov iSazonov mentioned this pull request Jan 3, 2023
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@daxian-dbw daxian-dbw daxian-dbw left review comments

@SteveL-MSFT SteveL-MSFT SteveL-MSFT approved these changes

@adityapatwardhan adityapatwardhan Awaiting requested review from adityapatwardhan

@anmenaga anmenaga Awaiting requested review from anmenaga

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