patches/v8_module_deps.patch

# What: replace upstream V8 module dependency bootstrapping with repository
# declarations and dependency setup that match this Bazel workspace.
# Scope: upstream MODULE.bazel only; affects external repo resolution and Bazel
# module wiring, not V8 source files.

diff --git a/orig/v8-15.0.245.2/MODULE.bazel b/mod/v8-15.0.245.2/MODULE.bazel
index b8bf8bd..573f463 100644
--- a/orig/v8-15.0.245.2/MODULE.bazel
+++ b/mod/v8-15.0.245.2/MODULE.bazel
@@ -8,193 +8,67 @@ bazel_dep(name = "rules_cc", version = "0.2.0")
 bazel_dep(name = "rules_python", version = "1.0.0")
 bazel_dep(name = "platforms", version = "1.0.0")
 bazel_dep(name = "abseil-cpp", version = "20250814.0")
-bazel_dep(name = "highway", version = "1.2.0")
-
-pip = use_extension("@rules_python//python/extensions:pip.bzl", "pip")
-pip.parse(
-    hub_name = "v8_python_deps",
-    python_version = "3.11",
-    requirements_lock = "//:bazel/requirements.txt",
-    extra_pip_args = [
-        "--require-hashes",
-        "--index-url=https://pypi.org/simple",
-    ],
+bazel_dep(name = "rules_license", version = "0.0.4")
+
+git_repository = use_repo_rule("@bazel_tools//tools/build_defs/repo:git.bzl", "git_repository")
+http_archive = use_repo_rule("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")
+
+http_archive(
+    name = "highway",
+    patch_args = ["-p1"],
+    patches = ["@v8//:bazel/highway.patch"],
+    sha256 = "7e0be78b8318e8bdbf6fa545d2ecb4c90f947df03f7aadc42c1967f019e63343",
+    strip_prefix = "highway-1.2.0",
+    urls = ["https://github.com/google/highway/archive/refs/tags/1.2.0.tar.gz"],
 )
-use_repo(pip, "v8_python_deps")
-
-# Define the local LLVM toolchain repository
-llvm_toolchain_repository = use_repo_rule("//bazel/toolchain:llvm_repository.bzl", "llvm_toolchain_repository")
-
-llvm_toolchain_repository(
-    name = "llvm_toolchain",
-    path = "third_party/llvm-build/Release+Asserts",
-    config_file_content = """
-load("@rules_cc//cc:defs.bzl", "CcToolchainConfigInfo", "cc_common")
-load("@bazel_tools//tools/cpp:cc_toolchain_config_lib.bzl", "feature", "flag_group", "flag_set", "tool_path")

-def _impl(ctx):
-    tool_paths = [
-        tool_path(name = "gcc", path = "bin/clang"),
-        tool_path(name = "ld", path = "bin/lld"),
-        tool_path(name = "ar", path = "bin/llvm-ar"),
-        tool_path(name = "cpp", path = "bin/clang++"),
-        tool_path(name = "gcov", path = "/bin/false"),
-        tool_path(name = "nm", path = "bin/llvm-nm"),
-        tool_path(name = "objdump", path = "bin/llvm-objdump"),
-        tool_path(name = "strip", path = "bin/llvm-strip"),
-    ]
-
-    features = [
-        feature(
-            name = "default_compile_flags",
-            enabled = True,
-            flag_sets = [
-                flag_set(
-                    actions = [
-                        "c-compile",
-                        "c++-compile",
-                        "c++-header-parsing",
-                        "c++-module-compile",
-                        "c++-module-codegen",
-                        "linkstamp-compile",
-                        "assemble",
-                        "preprocess-assemble",
-                    ],
-                    flag_groups = [
-                        flag_group(
-                            flags = [
-                                "--sysroot={WORKSPACE_ROOT}/build/linux/debian_bullseye_amd64-sysroot",
-                                "-nostdinc++",
-                                "-isystem",
-                                "{WORKSPACE_ROOT}/buildtools/third_party/libc++",
-                                "-isystem",
-                                "{WORKSPACE_ROOT}/third_party/libc++/src/include",
-                                "-isystem",
-                                "{WORKSPACE_ROOT}/third_party/libc++abi/src/include",
-                                "-isystem",
-                                "{WORKSPACE_ROOT}/third_party/libc++/src/src",
-                                "-isystem",
-                                "{WORKSPACE_ROOT}/third_party/llvm-libc/src",
-                                "-D_LIBCPP_HARDENING_MODE_DEFAULT=_LIBCPP_HARDENING_MODE_NONE",
-                                "-DLIBC_NAMESPACE=__llvm_libc_cr",
-                            ],
-                        ),
-                    ],
-                ),
-            ],
-        ),
-        feature(
-            name = "default_linker_flags",
-            enabled = True,
-            flag_sets = [
-                flag_set(
-                    actions = [
-                        "c++-link-executable",
-                        "c++-link-dynamic-library",
-                        "c++-link-nodeps-dynamic-library",
-                    ],
-                    flag_groups = [
-                        flag_group(
-                            flags = [
-                                "--sysroot={WORKSPACE_ROOT}/build/linux/debian_bullseye_amd64-sysroot",
-                                "-fuse-ld=lld",
-                                "-lm",
-                                "-lpthread",
-                            ],
-                        ),
-                    ],
-                ),
-            ],
-        ),
-    ]
-
-    return cc_common.create_cc_toolchain_config_info(
-        ctx = ctx,
-        toolchain_identifier = "local_clang",
-        features = features,
-        cxx_builtin_include_directories = [
-            "{WORKSPACE_ROOT}/buildtools/third_party/libc++",
-            "{WORKSPACE_ROOT}/third_party/libc++/src/include",
-            "{WORKSPACE_ROOT}/third_party/libc++abi/src/include",
-            "{WORKSPACE_ROOT}/third_party/libc++/src/src",
-            "{WORKSPACE_ROOT}/third_party/llvm-libc/src",
-            "{WORKSPACE_ROOT}/third_party/llvm-build/Release+Asserts/lib/clang/22/include",
-            "{WORKSPACE_ROOT}/third_party/llvm-build/Release+Asserts/lib/clang/23/include",
-            "{WORKSPACE_ROOT}/build/linux/debian_bullseye_amd64-sysroot/usr/include",
-            "{WORKSPACE_ROOT}/build/linux/debian_bullseye_amd64-sysroot/usr/local/include",
-        ],
-        host_system_name = "local",
-        target_system_name = "local",
-        target_cpu = "k8",
-        target_libc = "unknown",
-        compiler = "clang",
-        abi_version = "unknown",
-        abi_libc_version = "unknown",
-        tool_paths = tool_paths,
-    )
-
-cc_toolchain_config = rule(
-    implementation = _impl,
-    attrs = {},
-    provides = [CcToolchainConfigInfo],
+git_repository(
+    name = "icu",
+    build_file = "@v8//:bazel/BUILD.icu",
+    commit = "a86a32e67b8d1384b33f8fa48c83a6079b86f8cd",
+    patch_cmds = ["find source -name BUILD.bazel | xargs rm"],
+    patch_cmds_win = ["Get-ChildItem -Path source -File -Include BUILD.bazel -Recurse | Remove-Item"],
+    remote = "https://chromium.googlesource.com/chromium/deps/icu.git",
 )
-""",
-    build_file_content = """
-load("@rules_cc//cc:defs.bzl", "cc_toolchain")
-load(":cc_toolchain_config.bzl", "cc_toolchain_config")
-
-package(default_visibility = ["//visibility:public"])

-filegroup(
-    name = "all_files",
-    srcs = glob(["**/*"]),
+http_archive(
+    name = "fast_float",
+    build_file_content = 'load("@rules_cc//cc:defs.bzl", "cc_library")\n\ncc_library(\n    name = "fast_float",\n    hdrs = glob(["include/fast_float/*.h"]),\n    include_prefix = "third_party/fast_float/src/include",\n    strip_include_prefix = "include",\n    visibility = ["//visibility:public"],\n)\n',
+    sha256 = "e14a33089712b681d74d94e2a11362643bd7d769ae8f7e7caefe955f57f7eacd",
+    strip_prefix = "fast_float-8.0.2",
+    urls = ["https://github.com/fastfloat/fast_float/archive/refs/tags/v8.0.2.tar.gz"],
 )

-filegroup(name = "empty")
-
-cc_toolchain_config(name = "k8_toolchain_config")
-
-cc_toolchain(
-    name = "k8_toolchain",
-    all_files = ":all_files",
-    ar_files = ":all_files",
-    compiler_files = ":all_files",
-    dwp_files = ":empty",
-    linker_files = ":all_files",
-    objcopy_files = ":all_files",
-    strip_files = ":all_files",
-    supports_param_files = 0,
-    toolchain_config = ":k8_toolchain_config",
-    toolchain_identifier = "local_clang",
+http_archive(
+    name = "simdutf",
+    build_file_content = 'load("@rules_cc//cc:defs.bzl", "cc_library")\n\ncc_library(\n    name = "simdutf",\n    srcs = ["src/simdutf.cpp"],\n    hdrs = glob(["include/**/*.h"]),\n    textual_hdrs = glob(["src/**/*.h", "src/**/*.cpp"], exclude = ["src/simdutf.cpp"]),\n    copts = ["-std=c++20"],\n    include_prefix = "third_party/simdutf",\n    includes = ["include", "src"],\n    strip_include_prefix = "include",\n    visibility = ["//visibility:public"],\n)\n',
+    sha256 = "0180de81a1dd48a87b8c0442ffa81734f3db91a7350914107a449935124e3c6f",
+    strip_prefix = "simdutf-7.7.0",
+    urls = ["https://github.com/simdutf/simdutf/archive/refs/tags/v7.7.0.tar.gz"],
 )

-toolchain(
-    name = "cc_toolchain_k8",
-    exec_compatible_with = [
-        "@platforms//cpu:x86_64",
-        "@platforms//os:linux",
-    ],
-    target_compatible_with = [
-        "@platforms//cpu:x86_64",
-        "@platforms//os:linux",
-    ],
-    toolchain = ":k8_toolchain",
-    toolchain_type = "@bazel_tools//tools/cpp:toolchain_type",
-)
-""",
+git_repository(
+    name = "dragonbox",
+    build_file_content = 'load("@rules_cc//cc:defs.bzl", "cc_library")\n\ncc_library(\n    name = "dragonbox",\n    hdrs = ["include/dragonbox/dragonbox.h"],\n    include_prefix = "third_party/dragonbox/src/include",\n    strip_include_prefix = "include",\n    visibility = ["//visibility:public"],\n)\n',
+    commit = "beeeef91cf6fef89a4d4ba5e95d47ca64ccb3a44",
+    remote = "https://chromium.googlesource.com/external/github.com/jk-jeon/dragonbox.git",
 )

-register_toolchains("@llvm_toolchain//:cc_toolchain_k8")
-
-# Define local repository for libc++ from third_party sources
-libcxx_repository = use_repo_rule("//bazel/toolchain:libcxx_repository.bzl", "libcxx_repository")
-
-libcxx_repository(
-    name = "libcxx",
+git_repository(
+    name = "fp16",
+    build_file_content = 'load("@rules_cc//cc:defs.bzl", "cc_library")\n\ncc_library(\n    name = "fp16",\n    hdrs = glob(["include/**/*.h"]),\n    include_prefix = "third_party/fp16/src/include",\n    includes = ["include"],\n    strip_include_prefix = "include",\n    visibility = ["//visibility:public"],\n)\n',
+    commit = "3d2de1816307bac63c16a297e8c4dc501b4076df",
+    remote = "https://chromium.googlesource.com/external/github.com/Maratyszcza/FP16.git",
 )

-single_version_override(
-    module_name = "highway",
-    patches = ["//bazel/patches:highway_rules_cc.patch"],
-    patch_strip = 1,
+pip = use_extension("@rules_python//python/extensions:pip.bzl", "pip")
+pip.parse(
+    hub_name = "v8_python_deps",
+    python_version = "3.11",
+    requirements_lock = "//:bazel/requirements.txt",
+    extra_pip_args = [
+        "--require-hashes",
+        "--index-url=https://pypi.org/simple",
+    ],
 )
+use_repo(pip, "v8_python_deps")
diff --git a/mod/v8-15.0.245.2/bazel/highway.patch b/mod/v8-15.0.245.2/bazel/highway.patch
new file mode 100644
index 0000000..5a13dd0
--- /dev/null
+++ b/mod/v8-15.0.245.2/bazel/highway.patch
@@ -0,0 +1,25 @@
+diff --git a/BUILD b/BUILD
+--- a/BUILD
++++ b/BUILD
+@@ -2,7 +2,7 @@
+ load("@bazel_skylib//lib:selects.bzl", "selects")
+ load("@rules_license//rules:license.bzl", "license")
+
+-load("@rules_cc//cc:defs.bzl", "cc_test")
++load("@rules_cc//cc:defs.bzl", "cc_binary", "cc_library", "cc_test")
+ # Placeholder#2 for Guitar, do not remove
+
+ package(
+@@ -134,11 +134,7 @@ COPTS = select({
+     ],
+ })
+
+-DEFINES = select({
+-    ":compiler_msvc": ["HWY_SHARED_DEFINE"],
+-    ":compiler_clangcl": ["HWY_SHARED_DEFINE"],
+-    "//conditions:default": [],
+-})
++DEFINES = []
+
+ # Unused on Bazel builds, where this is not defined/known; Copybara replaces
+ # usages with an empty list.