Date: Fri, 15 Nov 2024 12:59:41 GMT From: Dimitry Andric <dim@FreeBSD.org> To: ports-committers@FreeBSD.org, dev-commits-ports-all@FreeBSD.org, dev-commits-ports-main@FreeBSD.org Subject: git: 1617a29594f0 - main - lang/v8: fix build with libc++ 19 Message-ID: <202411151259.4AFCxfjQ059589@gitrepo.freebsd.org>
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The branch main has been updated by dim: URL: https://cgit.FreeBSD.org/ports/commit/?id=1617a29594f0a2f73ca741638e97e591a6618365 commit 1617a29594f0a2f73ca741638e97e591a6618365 Author: Dimitry Andric <dim@FreeBSD.org> AuthorDate: 2024-11-03 14:24:04 +0000 Commit: Dimitry Andric <dim@FreeBSD.org> CommitDate: 2024-11-15 12:59:00 +0000 lang/v8: fix build with libc++ 19 As noted in the libc++ 19 release notes [1], std::char_traits<> is now only provided for char, char8_t, char16_t, char32_t and wchar_t, and any instantiation for other types will fail. This causes lang/v8 to fail to compile with clang 19 and libc++ 19, resulting in errors similar to: /usr/include/c++/v1/string:820:42: error: implicit instantiation of undefined template 'std::char_traits<unsigned short>' 820 | static_assert(is_same<_CharT, typename traits_type::char_type>::value, | ^ ../../src/inspector/v8-string-conversions.cc:387:26: note: in instantiation of template class 'std::basic_string<unsigned short>' requested here 387 | std::basic_string<UChar> UTF8ToUTF16(const char* stringStart, size_t length) { | ^ /usr/include/c++/v1/__fwd/string.h:23:29: note: template is declared here 23 | struct _LIBCPP_TEMPLATE_VIS char_traits; | ^ Upstream v8 has fixed this in commit 182d9c05e78 [2], so add it as a backported patch, until the next version of v8 is released. [1] https://libcxx.llvm.org/ReleaseNotes/19.html#deprecations-and-removals [2] https://chromium.googlesource.com/v8/v8.git/+/182d9c05e78 PR: 282514 Approved by: sunpoet (maintainer) MFH: 2024Q4 --- lang/v8/files/patch-182d9c05e78 | 180 ++++++++++++++++++++++++++++++++++++++++ 1 file changed, 180 insertions(+) diff --git a/lang/v8/files/patch-182d9c05e78 b/lang/v8/files/patch-182d9c05e78 new file mode 100644 index 000000000000..f9150a2b5c51 --- /dev/null +++ b/lang/v8/files/patch-182d9c05e78 @@ -0,0 +1,180 @@ +commit 182d9c05e78b1ddb1cb8242cd3628a7855a0336f +Author: Andrey Kosyakov <caseq@chromium.org> +Date: 2023-08-17T13:50:11-07:00 + + Define UChar as char16_t + + We used to have UChar defined as uint16_t which does not go along + with STL these days if you try to have an std::basic_string<> of it, + as there are no standard std::char_traits<> specialization for uint16_t. + + This switches UChar to char16_t where practical, introducing a few + compatibility shims to keep CL size small, as (1) this would likely + have to be back-ported and (2) crdtp extensively uses uint16_t for + wide chars. + + Bug: b:296390693 + Change-Id: I66a32d8f0050915225b187de56896c26dd76163d + Reviewed-on: https://chromium-review.googlesource.com/c/v8/v8/+/4789966 + Reviewed-by: Jaroslav Sevcik <jarin@chromium.org> + Commit-Queue: Jaroslav Sevcik <jarin@chromium.org> + Auto-Submit: Andrey Kosyakov <caseq@chromium.org> + Cr-Commit-Position: refs/heads/main@{#89559} + +diff --git src/inspector/string-16.cc src/inspector/string-16.cc +index a8b786a8166..6df9963e970 100644 +--- src/inspector/string-16.cc ++++ src/inspector/string-16.cc +@@ -27,7 +27,7 @@ bool isSpaceOrNewLine(UChar c) { + return isASCII(c) && c <= ' ' && (c == ' ' || (c <= 0xD && c >= 0x9)); + } + +-int64_t charactersToInteger(const UChar* characters, size_t length, ++int64_t charactersToInteger(const uint16_t* characters, size_t length, + bool* ok = nullptr) { + std::vector<char> buffer; + buffer.reserve(length + 1); +@@ -50,6 +50,8 @@ String16::String16(const UChar* characters, size_t siz + + String16::String16(const UChar* characters, size_t size) + : m_impl(characters, size) {} ++String16::String16(const uint16_t* characters, size_t size) ++ : m_impl(reinterpret_cast<const UChar*>(characters), size) {} + + String16::String16(const UChar* characters) : m_impl(characters) {} + +@@ -231,6 +233,10 @@ String16 String16::fromUTF16LE(const UChar* stringStar + // No need to do anything on little endian machines. + return String16(stringStart, length); + #endif // V8_TARGET_BIG_ENDIAN ++} ++ ++String16 String16::fromUTF16LE(const uint16_t* stringStart, size_t length) { ++ return fromUTF16LE(reinterpret_cast<const UChar*>(stringStart), length); + } + + std::string String16::utf8() const { +diff --git src/inspector/string-16.h src/inspector/string-16.h +index 1678ffb2e1e..d9f6c466ab1 100644 +--- src/inspector/string-16.h ++++ src/inspector/string-16.h +@@ -6,6 +6,7 @@ + #define V8_INSPECTOR_STRING_16_H_ + + #include <stdint.h> ++#include <uchar.h> + + #include <cctype> + #include <climits> +@@ -17,7 +18,7 @@ namespace v8_inspector { + + namespace v8_inspector { + +-using UChar = uint16_t; ++using UChar = char16_t; + + class String16 { + public: +@@ -27,6 +28,7 @@ class String16 { + String16(const String16&) V8_NOEXCEPT = default; + String16(String16&&) V8_NOEXCEPT = default; + String16(const UChar* characters, size_t size); ++ String16(const uint16_t* characters, size_t size); + V8_EXPORT String16(const UChar* characters); + V8_EXPORT String16(const char* characters); + String16(const char* characters, size_t size); +@@ -47,7 +49,9 @@ class String16 { + uint64_t toUInt64(bool* ok = nullptr) const; + int toInteger(bool* ok = nullptr) const; + String16 stripWhiteSpace() const; +- const UChar* characters16() const { return m_impl.c_str(); } ++ const uint16_t* characters16() const { ++ return reinterpret_cast<const uint16_t*>(m_impl.c_str()); ++ } + size_t length() const { return m_impl.length(); } + bool isEmpty() const { return !m_impl.length(); } + UChar operator[](size_t index) const { return m_impl[index]; } +@@ -76,6 +80,8 @@ class String16 { + // Instantiates a String16 in native endianness from UTF16 LE. + // On Big endian architectures, byte order needs to be flipped. + V8_EXPORT static String16 fromUTF16LE(const UChar* stringStart, ++ size_t length); ++ V8_EXPORT static String16 fromUTF16LE(const uint16_t* stringStart, + size_t length); + + std::size_t hash() const { +diff --git src/inspector/v8-string-conversions.cc src/inspector/v8-string-conversions.cc +index 0c75e66b972..8cf19be816c 100644 +--- src/inspector/v8-string-conversions.cc ++++ src/inspector/v8-string-conversions.cc +@@ -12,7 +12,7 @@ namespace { + + namespace v8_inspector { + namespace { +-using UChar = uint16_t; ++using UChar = char16_t; + using UChar32 = uint32_t; + + bool isASCII(UChar c) { return !(c & ~0x7F); } +@@ -386,7 +386,7 @@ std::basic_string<UChar> UTF8ToUTF16(const char* strin + + std::basic_string<UChar> UTF8ToUTF16(const char* stringStart, size_t length) { + if (!stringStart || !length) return std::basic_string<UChar>(); +- std::vector<uint16_t> buffer(length); ++ std::vector<UChar> buffer(length); + UChar* bufferStart = buffer.data(); + + UChar* bufferCurrent = bufferStart; +@@ -395,7 +395,7 @@ std::basic_string<UChar> UTF8ToUTF16(const char* strin + reinterpret_cast<const char*>(stringStart + length), + &bufferCurrent, bufferCurrent + buffer.size(), nullptr, + true) != conversionOK) +- return std::basic_string<uint16_t>(); ++ return std::basic_string<UChar>(); + size_t utf16Length = bufferCurrent - bufferStart; + return std::basic_string<UChar>(bufferStart, bufferStart + utf16Length); + } +diff --git src/inspector/v8-string-conversions.h src/inspector/v8-string-conversions.h +index eb33c6816a5..1126255dac2 100644 +--- src/inspector/v8-string-conversions.h ++++ src/inspector/v8-string-conversions.h +@@ -5,13 +5,15 @@ + #ifndef V8_INSPECTOR_V8_STRING_CONVERSIONS_H_ + #define V8_INSPECTOR_V8_STRING_CONVERSIONS_H_ + ++#include <uchar.h> ++ + #include <string> + + // Conversion routines between UT8 and UTF16, used by string-16.{h,cc}. You may + // want to use string-16.h directly rather than these. + namespace v8_inspector { +-std::basic_string<uint16_t> UTF8ToUTF16(const char* stringStart, size_t length); +-std::string UTF16ToUTF8(const uint16_t* stringStart, size_t length); ++std::basic_string<char16_t> UTF8ToUTF16(const char* stringStart, size_t length); ++std::string UTF16ToUTF8(const char16_t* stringStart, size_t length); + } // namespace v8_inspector + + #endif // V8_INSPECTOR_V8_STRING_CONVERSIONS_H_ +--- third_party/inspector_protocol/crdtp/test_platform_v8.cc.orig 2022-07-14 12:21:06 UTC ++++ third_party/inspector_protocol/crdtp/test_platform_v8.cc +@@ -11,13 +11,16 @@ std::string UTF16ToUTF8(span<uint16_t> in) { + namespace v8_crdtp { + + std::string UTF16ToUTF8(span<uint16_t> in) { +- return v8_inspector::UTF16ToUTF8(in.data(), in.size()); ++ return v8_inspector::UTF16ToUTF8(reinterpret_cast<const char16_t*>(in.data()), ++ in.size()); + } + + std::vector<uint16_t> UTF8ToUTF16(span<uint8_t> in) { +- std::basic_string<uint16_t> utf16 = v8_inspector::UTF8ToUTF16( ++ std::basic_string<char16_t> utf16 = v8_inspector::UTF8ToUTF16( + reinterpret_cast<const char*>(in.data()), in.size()); +- return std::vector<uint16_t>(utf16.begin(), utf16.end()); ++ return std::vector<uint16_t>( ++ reinterpret_cast<const uint16_t*>(utf16.data()), ++ reinterpret_cast<const uint16_t*>(utf16.data()) + utf16.size()); + } + + } // namespace v8_crdtp
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