Bug 213034 – Suppress compiler warnings

• Component: New Bugs
• Status: RESOLVED FIXED

[Víctor M. Jáquez L.]

Suppress some clang++ warnings.

This is also an update of https://bugs.webkit.org/show_bug.cgi?id=206235

[Víctor M. Jáquez L.]

Created attachment 401555 [details]
Patch

[Darin Adler]

Comment on attachment 401555 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=401555&action=review

r=me but please consider moving the cast to size_t and doing a follow-up change to FileSystem.

> Source/WebCore/Modules/indexeddb/server/UniqueIDBDatabase.cpp:781
> +    LOG(IndexedDB, "UniqueIDBDatabase::putOrAdd quota check with task size: %" PRIu64 " key size: %" PRIu64 " value size: %" PRIu64 " index size: %" PRIu64, taskSize, keySize, valueSize, indexSize);

This is clearly right.

> Source/WebKit/NetworkProcess/cache/NetworkCacheData.cpp:154
> +        if (static_cast<std::size_t>(bytesRead) == salt.size())

Seems to me that this points to a design mistake, and I am not sure that it’s good to quiet the warning here. Doing the cast here is only safe because we know the number is small enough to fit into size_t. And since the FileSystem::readFromFile function reads data into memory, by definition can’t read a number of bytes that won’t fit into a size_t. But that should be encoded by making the return type of the function be a size_t, not by adding casts. I don’t know what other problems there might be if we made that change.

Maybe we should move the static_cast to the line that calls readFromFile and then file a follow-up bug about changing the return type of that function.

> Source/WebKit/NetworkProcess/cache/NetworkCacheData.cpp:162
> +    bool success = static_cast<std::size_t>(FileSystem::writeToFile(file, reinterpret_cast<char*>(salt.data()), salt.size())) == salt.size();

Ditto: Here it’s better because the cast is right where we call writeToFile, but I think we need that follow-up.

[Víctor M. Jáquez L.]

Created attachment 401900 [details]
Patch

[EWS]

Committed r263041: <https://trac.webkit.org/changeset/263041>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 401900 [details].

[Radar WebKit Bug Importer]

<rdar://problem/64366435>