Add initial visionOS support

Depends on bazelbuild/bazel#18905 and bazelbuild/platforms#71

README.md

@@ -5,7 +5,7 @@ Apple related [platforms](platforms/BUILD) and
 [constraints](constraints/BUILD) definitions, and small helper functions
 for rules authors targeting Apple platforms.
 
-If you want to build iOS, tvOS, watchOS, or macOS apps, use
+If you want to build iOS, tvOS, visionOS, watchOS, or macOS apps, use
 [`rules_apple`][rules_apple].
 
 If you want to build Swift use

configs/platforms.bzl

@@ -61,6 +61,21 @@ APPLE_PLATFORMS_CONSTRAINTS = {
         "@platforms//cpu:arm64",
         "@build_bazel_apple_support//constraints:simulator",
     ],
+    "visionos_arm64": [
+        "@platforms//os:visionos",
+        "@platforms//cpu:arm64",
+        "@build_bazel_apple_support//constraints:device",
+    ],
+    "visionos_sim_arm64": [
+        "@platforms//os:visionos",
+        "@platforms//cpu:arm64",
+        "@build_bazel_apple_support//constraints:simulator",
+    ],
+    "visionos_x86_64": [
+        "@platforms//os:visionos",
+        "@platforms//cpu:x86_64",
+        "@build_bazel_apple_support//constraints:simulator",
+    ],
     "watchos_arm64": [
         "@platforms//os:watchos",
         "@platforms//cpu:arm64",

crosstool/cc_toolchain_config.bzl

@@ -55,6 +55,8 @@ def _impl(ctx):
         target_system_name = "arm64-apple-ios{}".format(target_os_version)
     elif (ctx.attr.cpu == "tvos_arm64"):
         target_system_name = "arm64-apple-tvos{}".format(target_os_version)
+    elif (ctx.attr.cpu == "visionos_arm64"):
+        target_system_name = "arm64-apple-xros{}".format(target_os_version)
     elif (ctx.attr.cpu == "watchos_arm64_32"):
         target_system_name = "arm64_32-apple-watchos{}".format(target_os_version)
     elif (ctx.attr.cpu == "ios_arm64e"):
@@ -73,6 +75,8 @@ def _impl(ctx):
         target_system_name = "arm64-apple-ios{}-simulator".format(target_os_version)
     elif (ctx.attr.cpu == "tvos_sim_arm64"):
         target_system_name = "arm64-apple-tvos{}-simulator".format(target_os_version)
+    elif (ctx.attr.cpu == "visionos_sim_arm64"):
+        target_system_name = "arm64-apple-xros{}-simulator".format(target_os_version)
     elif (ctx.attr.cpu == "watchos_arm64"):
         target_system_name = "arm64-apple-watchos{}-simulator".format(target_os_version)
     elif (ctx.attr.cpu == "darwin_x86_64"):
@@ -83,6 +87,8 @@ def _impl(ctx):
         target_system_name = "arm64e-apple-macosx{}".format(target_os_version)
     elif (ctx.attr.cpu == "tvos_x86_64"):
         target_system_name = "x86_64-apple-tvos{}-simulator".format(target_os_version)
+    elif (ctx.attr.cpu == "visionos_x86_64"):
+        target_system_name = "x86_64-apple-xros{}-simulator".format(target_os_version)
     elif (ctx.attr.cpu == "watchos_x86_64"):
         target_system_name = "x86_64-apple-watchos{}-simulator".format(target_os_version)
     else:
@@ -101,7 +107,7 @@ def _impl(ctx):
         abi_version = "local"
 
     arch = ctx.attr.cpu.split("_", 1)[-1]
-    if ctx.attr.cpu in ["ios_sim_arm64", "tvos_sim_arm64", "watchos_arm64"]:
+    if ctx.attr.cpu in ["ios_sim_arm64", "tvos_sim_arm64", "visionos_sim_arm64", "watchos_arm64"]:
         arch = "arm64"
 
     all_link_actions = [
@@ -678,8 +684,11 @@ def _impl(ctx):
         ctx.attr.cpu == "ios_arm64e" or
         ctx.attr.cpu == "ios_armv7" or
         ctx.attr.cpu == "ios_i386" or
-        ctx.attr.cpu == "ios_x86_64" or
         ctx.attr.cpu == "ios_sim_arm64" or
+        ctx.attr.cpu == "ios_x86_64" or
+        ctx.attr.cpu == "visionos_arm64" or
+        ctx.attr.cpu == "visionos_sim_arm64" or
+        ctx.attr.cpu == "visionos_x86_64" or
         ctx.attr.cpu == "watchos_arm64_32" or
         ctx.attr.cpu == "watchos_armv7k" or
         ctx.attr.cpu == "watchos_i386" or
@@ -867,6 +876,8 @@ def _impl(ctx):
         ctx.attr.cpu == "ios_sim_arm64" or
         ctx.attr.cpu == "tvos_x86_64" or
         ctx.attr.cpu == "tvos_sim_arm64" or
+        ctx.attr.cpu == "visionos_sim_arm64" or
+        ctx.attr.cpu == "visionos_x86_64" or
         ctx.attr.cpu == "watchos_i386" or
         ctx.attr.cpu == "watchos_x86_64" or
         ctx.attr.cpu == "watchos_arm64"):
@@ -1416,6 +1427,9 @@ def _impl(ctx):
         ctx.attr.cpu == "tvos_arm64" or
         ctx.attr.cpu == "tvos_x86_64" or
         ctx.attr.cpu == "tvos_sim_arm64" or
+        ctx.attr.cpu == "visionos_arm64" or
+        ctx.attr.cpu == "visionos_x86_64" or
+        ctx.attr.cpu == "visionos_sim_arm64" or
         ctx.attr.cpu == "watchos_arm64_32" or
         ctx.attr.cpu == "watchos_armv7k" or
         ctx.attr.cpu == "watchos_i386" or

lib/BUILD

@@ -15,6 +15,7 @@ objc_library(
         "@platforms//os:ios": [],
         "@platforms//os:macos": [],
         "@platforms//os:tvos": [],
+        "@platforms//os:visionos": [],
         "@platforms//os:watchos": [],
         "//conditions:default": ["@platforms//:incompatible"],
     }),

test/binary_tests.bzl

@@ -15,3 +15,33 @@ def binary_test_suite(name):
         verifier_script = "//test/shell:verify_binary.sh",
         target_under_test = "//test/test_data:apple_binary",
     )
+
+    apple_verification_test(
+        name = "{}_visionos_device_test".format(name),
+        tags = [name],
+        build_type = "device",
+        cpus = {"visionos_cpus": "arm64"},
+        expected_platform_type = "visionos",
+        verifier_script = "//test/shell:verify_binary.sh",
+        target_under_test = "//test/test_data:visionos_binary",
+    )
+
+    apple_verification_test(
+        name = "{}_visionos_arm64_simulator_test".format(name),
+        tags = [name],
+        build_type = "simulator",
+        cpus = {"visionos_cpus": "sim_arm64"},
+        expected_platform_type = "visionos",
+        verifier_script = "//test/shell:verify_binary.sh",
+        target_under_test = "//test/test_data:visionos_binary",
+    )
+
+    apple_verification_test(
+        name = "{}_visionos_x86_64_simulator_test".format(name),
+        tags = [name],
+        build_type = "simulator",
+        cpus = {"visionos_cpus": "x86_64"},
+        expected_platform_type = "visionos",
+        verifier_script = "//test/shell:verify_binary.sh",
+        target_under_test = "//test/test_data:visionos_binary",
+    )

test/shell/verify_binary.sh

@@ -8,6 +8,10 @@ if [[ "$PLATFORM_TYPE" == "ios" && "$BUILD_TYPE" == "device" ]]; then
   expected_platform="IPHONEOS"
 elif [[ "$PLATFORM_TYPE" == "ios" && "$BUILD_TYPE" == "simulator" ]]; then
   expected_platform="IPHONESIMULATOR"
+elif [[ "$PLATFORM_TYPE" == "visionos" && "$BUILD_TYPE" == "device" ]]; then
+  expected_platform="XROS"
+elif [[ "$PLATFORM_TYPE" == "visionos" && "$BUILD_TYPE" == "simulator" ]]; then
+  expected_platform="XROSSIMULATOR"
 fi
 
 otool_output=$(otool -lv "$binary")

test/test_data/BUILD

@@ -38,3 +38,30 @@ starlark_apple_binary(
     tags = TARGETS_UNDER_TEST_TAGS,
     deps = [":cc_main"],
 )
+
+cc_library(
+    name = "cc_lib",
+    srcs = ["lib.cc"],
+    tags = TARGETS_UNDER_TEST_TAGS,
+)
+
+objc_library(
+    name = "objc_lib",
+    srcs = ["lib.m"],
+    tags = TARGETS_UNDER_TEST_TAGS,
+    deps = ["cc_lib"],
+)
+
+objc_library(
+    name = "objc_main",
+    srcs = ["main.m"],
+    tags = TARGETS_UNDER_TEST_TAGS,
+    deps = ["objc_lib"],
+)
+
+starlark_apple_binary(
+    name = "visionos_binary",
+    platform_type = "visionos",
+    tags = TARGETS_UNDER_TEST_TAGS,
+    deps = [":objc_main"],
+)

test/test_data/lib.cc

@@ -0,0 +1,3 @@
+int cc_function() {
+  return 2;
+}

test/test_data/lib.m

@@ -0,0 +1,3 @@
+int objc_function() {
+    return 1;
+}

test/test_data/main.m

@@ -0,0 +1,3 @@
+int main() {
+    return 42;
+}