BUILD.bazel

load("@rules_rust//rust:defs.bzl", "rust_library")

# buildifier: disable=bzl-visibility
load(
    "@rules_rust//rust/private:rust.bzl",
    "rust_library_without_process_wrapper",
)

package(
    default_visibility = ["@rules_rust//ffi/rs:__subpackages__"],
)

srcs = select({
    # Windows doesn't support weak symbol linkage.
    # If someone can make this work on Windows, please do!
    # For now we will silently not supply any symbols, because it would be very messy to conditionally define the default allocator library on toolchains depending on the platform.
    "@platforms//os:windows": ["empty.rs"],
    "//conditions:default": ["allocator_library.rs"],
})

# This is hacky, but lets us compile the shims even on stable.
rustc_env = {"RUSTC_BOOTSTRAP": "1"}

rustc_flags = []

rust_library(
    name = "allocator_library",
    srcs = srcs,
    allocator_libraries = "@rules_rust//ffi/rs:empty_allocator_libraries",
    edition = "2024",
    rustc_env = rustc_env,
    rustc_flags = rustc_flags,
    tags = ["manual"],
)

rust_library_without_process_wrapper(
    name = "allocator_library_without_process_wrapper",
    srcs = srcs,
    allocator_libraries = "@rules_rust//ffi/rs:empty_allocator_libraries",
    edition = "2024",
    rustc_env = rustc_env,
    rustc_flags = rustc_flags,
    tags = ["manual"],
)