[Webkit-unassigned] [Bug 233511] New: Investigate if ScriptBufferSourceProvider could do without having to flatten underlying SharedBuffer

[bugzilla-daemon at webkit.org]

https://bugs.webkit.org/show_bug.cgi?id=233511

            Bug ID: 233511
           Summary: Investigate if ScriptBufferSourceProvider could do
                    without having to flatten underlying SharedBuffer
           Product: WebKit
           Version: Other
          Hardware: Unspecified
                OS: Unspecified
            Status: NEW
          Severity: Normal
          Priority: P2
         Component: WebCore Misc.
          Assignee: webkit-unassigned at lists.webkit.org
          Reporter: jean-yves.avenard at apple.com

Seen in https://bugs.webkit.org/show_bug.cgi?id=233030#c13

ScriptBufferSourceProvider wraps a ScriptBuffer and ScriptBufferSourceProvider::source() flatten that ScriptBuffer's SharedBuffer to access the raw content and use this information to return a StringView.

A StringView is non-owning requiring ScriptBufferSourceProvider to take an extra reference to the flatten SharedBuffer so we have the content held in both the ScriptBuffer (non-flattened) and in ScriptBufferSourceProvider (flattened)

Ideally, we would have StringView keep a raw reference to the SharedBuffer and use SharedBuffer:read() to access the content when needed on demand.

Depends on the requirements: speed vs memory cost.

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