Add nanobind

.github/workflows/sanity_checks.yml

@@ -47,6 +47,7 @@ jobs:
   VisualStudio:
     runs-on: windows-latest
     strategy:
+      fail-fast: false
       matrix:
         platform: ['x64', 'x86']
     steps:

ci_config.json

@@ -666,6 +666,18 @@
     "build_options": [
       "nanoarrow:NANOARROW_BUILD_TESTS=true"
     ]
+  },
+    "nanobind": {
+    "_comment": "Python fails on 32-bit MSVC because we don't have 32-bit Python",
+    "alpine_packages": [
+      "python3-dev"
+    ],
+    "msys_packages": [
+      "python"
+    ],
+    "build_options": [
+      "buildtype=release"
+    ]
   },
   "nativefiledialog-extended": {
     "alpine_packages": [

releases.json

@@ -2326,6 +2326,14 @@
       "0.5.0-1"
     ]
   },
+  "nanobind": {
+    "dependency_names": [
+      "nanobind"
+    ],
+    "versions": [
+        "2.0.0-1"
+    ]
+  },
   "nativefiledialog-extended": {
     "dependency_names": [
       "nativefiledialog-extended"

subprojects/nanobind.wrap

@@ -0,0 +1,9 @@
+[wrap-file]
+directory = nanobind-2.0.0
+source_url = https://github.com/wjakob/nanobind/archive/refs/tags/v2.0.0.tar.gz
+source_filename = nanobind-2.0.0.tar.gz
+source_hash = 2e70727484edb7a8645d26f6a9f67352a668657c34de7a603bf9c68e5cbf8ff9
+patch_directory = nanobind
+
+[provide]
+nanobind = nanobind_dep

subprojects/packagefiles/nanobind/meson.build

@@ -0,0 +1,93 @@
+project(
+    'nanobind',
+    'cpp',
+    version: '2.0.0',
+    meson_version: '>=0.53.0',
+    license: 'BSD-3-Clause',
+)
+
+py_mod = import('python')
+py = py_mod.find_installation()
+py_dep = py.dependency(embed: true)
+
+robin_map_dep = dependency('robin-map')
+
+incdir = include_directories('include')
+
+# Arguments are derived from nanobind_build_library function in CMake configuration
+dep_compile_args = []
+dep_link_args = []
+if get_option('python.allow_limited_api')
+  py_version = py.language_version()
+
+  if py_version.version_compare('>=3.12')
+    add_project_arguments('-DPy_LIMITED_API=0x030C0000', language: 'cpp')
+  endif
+endif
+
+if get_option('buildtype') == 'shared'
+  # nanobind_link_options uses linker response files for either PyPy or
+  # CPython at this step - how do we support in Meson?
+  if host_machine.system() == 'darwin'
+    is_pypy = py_dep.get_variable('implementation_lower') == 'pypy'
+    if is_pypy
+      resp_file = meson.project_source_root() / 'cmake/darwin-ld-pypy.sym'
+    else
+      resp_file = meson.project_source_root() / 'cmake/darwin-ld-cpython.sym'
+    endif
+    add_project_link_arguments('-Wl,-dead_strip', '-Wl,x', '-Wl,-S', '-Wl,@' + resp_file)
+    dep_link_args += ['-Wl,-dead_strip', '-Wl,x', '-Wl,-S', '-Wl,@' + resp_file]
+  elif host_machine.system() != 'windows'
+    add_project_link_arguments('-Wl,-s', language: 'cpp')
+    dep_link_args += ['-Wl,-s']
+  endif
+
+  add_project_arguments('-DNB_BUILD', language: 'cpp')
+  dep_compile_args += ['-DNB_SHARED']
+elif host_machine.system() != 'windows' and host_machine.system() != 'darwin'
+  dep_compile_args += ['-ffunction-sections', '-fdata-sections']
+  dep_link_args += ['-Wl,--gc-sections']
+endif
+
+compiler = meson.get_compiler('cpp')
+if compiler.get_id() == 'msvc'
+  dep_compile_args += ['-D_CRT_SECURE_NO_WARNINGS']
+else
+  # Discussion in WrapDB PR #1556 as to whether or not this is necessary
+  # add_project_arguments('-fno-strict-aliasing', language: 'cpp')
+endif
+
+# Here the CMake configuration links against Python::SABIModule on Windows
+# if building an abi3 target - does Meson handle this internally?
+
+if get_option('buildtype') == 'release'
+  add_project_arguments('-DNB_COMPACT_ASSERTIONS', language: 'cpp')
+endif
+
+nanobind_lib = static_library(
+    'nanobind',
+    sources: [
+        'src/nb_internals.cpp',
+        'src/nb_func.cpp',
+        'src/nb_type.cpp',
+        'src/nb_enum.cpp',
+        'src/nb_ndarray.cpp',
+        'src/nb_static_property.cpp',
+        'src/common.cpp',
+        'src/error.cpp',
+        'src/trampoline.cpp',
+        'src/implicit.cpp',
+    ],
+    include_directories: [incdir],
+    dependencies: [py_dep, robin_map_dep],
+    gnu_symbol_visibility: 'hidden',
+)
+
+
+nanobind_dep = declare_dependency(
+    include_directories: [incdir],
+    link_with: [nanobind_lib],
+    dependencies: [py_dep, robin_map_dep],
+    compile_args: dep_compile_args,
+    link_args: dep_link_args,
+)