Cargo.toml

[package]
name = "hashbrown"
version = "0.17.0"
authors = ["Amanieu d'Antras <amanieu@gmail.com>"]
description = "A Rust port of Google's SwissTable hash map"
license = "MIT OR Apache-2.0"
repository = "https://github.com/rust-lang/hashbrown"
readme = "README.md"
keywords = ["hash", "no_std", "hashmap", "swisstable"]
categories = ["data-structures", "no-std"]
exclude = [".github", "/ci/*"]
edition = "2024"

# Make sure to sync this MSRV in the README badge and CI workflows
rust-version = "1.85.0"
autobenches = false

[lints.rust]
missing_docs = "warn"
unreachable_pub = "warn"
unsafe_op_in_unsafe_fn = "warn"

# rust_2018_idioms
bare_trait_objects = "warn"
elided_lifetimes_in_paths = "warn"
ellipsis_inclusive_range_patterns = "warn"
explicit_outlives_requirements = "warn"
unused_extern_crates = "warn"

[lints.clippy]
doc_markdown = "allow"
manual_map = "allow"
missing_errors_doc = "allow"
missing_safety_doc = "allow"
module_name_repetitions = "allow"
must_use_candidate = "allow"
option_if_let_else = "allow"

borrow_as_ptr = "warn"
manual_let_else = "warn"
needless_continue = "warn"
ptr_as_ptr = "warn"
ptr_cast_constness = "warn"
redundant_else = "warn"
ref_as_ptr = "warn"
semicolon_if_nothing_returned = "warn"
str_to_string = "warn"

[dependencies]
# For the default hasher
foldhash = { version = "0.2.0", default-features = false, optional = true }

# For external trait impls
rayon = { version = "1.9.0", optional = true }
serde_core = { version = "1.0.221", default-features = false, optional = true }

# When built as part of libstd
core = { version = "1.0.0", optional = true, package = "rustc-std-workspace-core" }
alloc = { version = "1.0.0", optional = true, package = "rustc-std-workspace-alloc" }

# Support for allocators that use allocator-api2
allocator-api2 = { version = "0.2.9", optional = true, default-features = false, features = [
  "alloc",
] }

# Equivalent trait which can be shared with other hash table implementations.
# NB: this is a public dependency because `Equivalent` is re-exported!
equivalent = { version = "1.0", optional = true, default-features = false }

# serde v1.0.220 is the first version that released with `serde_core`.
# This is required to avoid conflict with other `serde` users which may require an older version.
[target.'cfg(any())'.dependencies]
serde = { version = "1.0.220", default-features = false, optional = true }

[dev-dependencies]
rand = { version = "0.9.0", features = ["small_rng"] }
rayon = "1.2"
fnv = "1.0.7"
serde_test = "1.0"
bumpalo = { version = "3.13.0", features = ["allocator-api2"] }
criterion = { version = "0.7", features = ["html_reports"] }

[target.'cfg(unix)'.dev-dependencies]
libc = "0.2.155"

[features]
default = [
  "default-hasher",
  "inline-more",
  "allocator-api2",
  "equivalent",
  "raw-entry",
]

# Enables use of nightly features. This is only guaranteed to work on the latest
# version of nightly Rust.
nightly = ["foldhash?/nightly", "bumpalo/allocator_api"]

# Enables the RustcEntry API used to provide the standard library's Entry API.
rustc-internal-api = []

# Internal feature used when building as part of the standard library.
rustc-dep-of-std = ["nightly", "core", "alloc", "rustc-internal-api"]

# Enables serde support.
serde = ["dep:serde_core", "dep:serde"]

# Enables the deprecated RawEntry API.
raw-entry = []

# Provides a default hasher. Currently this is foldhash but this is subject to
# change in the future. Note that the default hasher does *not* provide HashDoS
# resistance, unlike the one in the standard library.
default-hasher = ["dep:foldhash"]

# Enables usage of `#[inline]` on far more functions than by default in this
# crate. This may lead to a performance increase but often comes at a compile
# time cost.
inline-more = []

[[bench]]
name = "bench"
harness = false

[package.metadata.docs.rs]
features = ["nightly", "rayon", "serde", "raw-entry"]
rustdoc-args = ["--generate-link-to-definition"]