summaryrefslogtreecommitdiffstats
path: root/vendor/writeable
diff options
context:
space:
mode:
authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:18:32 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-17 12:18:32 +0000
commit4547b622d8d29df964fa2914213088b148c498fc (patch)
tree9fc6b25f3c3add6b745be9a2400a6e96140046e9 /vendor/writeable
parentReleasing progress-linux version 1.66.0+dfsg1-1~progress7.99u1. (diff)
downloadrustc-4547b622d8d29df964fa2914213088b148c498fc.tar.xz
rustc-4547b622d8d29df964fa2914213088b148c498fc.zip
Merging upstream version 1.67.1+dfsg1.
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'vendor/writeable')
-rw-r--r--vendor/writeable/.cargo-checksum.json1
-rw-r--r--vendor/writeable/Cargo.lock654
-rw-r--r--vendor/writeable/Cargo.toml55
-rw-r--r--vendor/writeable/LICENSE51
-rw-r--r--vendor/writeable/README.md52
-rw-r--r--vendor/writeable/benches/writeable.rs162
-rw-r--r--vendor/writeable/examples/writeable_message.rs60
-rw-r--r--vendor/writeable/src/impls.rs213
-rw-r--r--vendor/writeable/src/lib.rs390
-rw-r--r--vendor/writeable/src/ops.rs291
-rw-r--r--vendor/writeable/tests/writeable.rs34
11 files changed, 1963 insertions, 0 deletions
diff --git a/vendor/writeable/.cargo-checksum.json b/vendor/writeable/.cargo-checksum.json
new file mode 100644
index 000000000..fe32e7569
--- /dev/null
+++ b/vendor/writeable/.cargo-checksum.json
@@ -0,0 +1 @@
+{"files":{"Cargo.lock":"efd045d3270108f64d75d49125e15940cf26b54c2944a13354698223d0c4ce17","Cargo.toml":"32b4d9ebb1a5c179aafb27b212e94203a1a2158b7c0387c712f25de31188b7a6","LICENSE":"4ad7541d66a407234e2c84902124cef325c29f3e966353efdb800bedb8b8da21","README.md":"a47b1fa1adda09e2ca28f7f49878c61d8f2057b8f3c42af7d39d646fedbd9934","benches/writeable.rs":"edc81c5524f98e77f0b3a45545606c4b526f63791e6dd8f90c88679c758c4834","examples/writeable_message.rs":"58bf4007f54f9f80428af7b687531837a294aecde533395a0a4c4cf55c9cad7d","src/impls.rs":"c13310eaf5ecb2f4bb87896ea0ee4f060b7828e7ea07b333e69a397a03ef39ae","src/lib.rs":"056631819550bd2845084f97fa1ee6ae130927c7021af86c8cf83337ae638f77","src/ops.rs":"4e49b1e8a8da46c3bcfecbdcb91f6e2d87afab47b76fcc2c4f005bf3cef675f1","tests/writeable.rs":"6dc3db45174180bcbf8980e640525b441c31b0b9db238721888d8cc0bd998ded"},"package":"f8e6ab4f5da1b24daf2c590cfac801bacb27b15b4f050e84eb60149ea726f06b"} \ No newline at end of file
diff --git a/vendor/writeable/Cargo.lock b/vendor/writeable/Cargo.lock
new file mode 100644
index 000000000..c4110d507
--- /dev/null
+++ b/vendor/writeable/Cargo.lock
@@ -0,0 +1,654 @@
+# This file is automatically @generated by Cargo.
+# It is not intended for manual editing.
+version = 3
+
+[[package]]
+name = "atty"
+version = "0.2.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d9b39be18770d11421cdb1b9947a45dd3f37e93092cbf377614828a319d5fee8"
+dependencies = [
+ "hermit-abi",
+ "libc",
+ "winapi",
+]
+
+[[package]]
+name = "autocfg"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"
+
+[[package]]
+name = "bitflags"
+version = "1.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
+
+[[package]]
+name = "bstr"
+version = "0.2.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ba3569f383e8f1598449f1a423e72e99569137b47740b1da11ef19af3d5c3223"
+dependencies = [
+ "lazy_static",
+ "memchr",
+ "regex-automata",
+ "serde",
+]
+
+[[package]]
+name = "bumpalo"
+version = "3.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c1ad822118d20d2c234f427000d5acc36eabe1e29a348c89b63dd60b13f28e5d"
+
+[[package]]
+name = "cast"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "37b2a672a2cb129a2e41c10b1224bb368f9f37a2b16b612598138befd7b37eb5"
+
+[[package]]
+name = "cfg-if"
+version = "1.0.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
+
+[[package]]
+name = "clap"
+version = "2.34.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a0610544180c38b88101fecf2dd634b174a62eef6946f84dfc6a7127512b381c"
+dependencies = [
+ "bitflags",
+ "textwrap",
+ "unicode-width",
+]
+
+[[package]]
+name = "criterion"
+version = "0.3.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b01d6de93b2b6c65e17c634a26653a29d107b3c98c607c765bf38d041531cd8f"
+dependencies = [
+ "atty",
+ "cast",
+ "clap",
+ "criterion-plot",
+ "csv",
+ "itertools",
+ "lazy_static",
+ "num-traits",
+ "oorandom",
+ "plotters",
+ "rayon",
+ "regex",
+ "serde",
+ "serde_cbor",
+ "serde_derive",
+ "serde_json",
+ "tinytemplate",
+ "walkdir",
+]
+
+[[package]]
+name = "criterion-plot"
+version = "0.4.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2673cc8207403546f45f5fd319a974b1e6983ad1a3ee7e6041650013be041876"
+dependencies = [
+ "cast",
+ "itertools",
+]
+
+[[package]]
+name = "crossbeam-channel"
+version = "0.5.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c2dd04ddaf88237dc3b8d8f9a3c1004b506b54b3313403944054d23c0870c521"
+dependencies = [
+ "cfg-if",
+ "crossbeam-utils",
+]
+
+[[package]]
+name = "crossbeam-deque"
+version = "0.8.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "715e8152b692bba2d374b53d4875445368fdf21a94751410af607a5ac677d1fc"
+dependencies = [
+ "cfg-if",
+ "crossbeam-epoch",
+ "crossbeam-utils",
+]
+
+[[package]]
+name = "crossbeam-epoch"
+version = "0.9.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "045ebe27666471bb549370b4b0b3e51b07f56325befa4284db65fc89c02511b1"
+dependencies = [
+ "autocfg",
+ "cfg-if",
+ "crossbeam-utils",
+ "memoffset",
+ "once_cell",
+ "scopeguard",
+]
+
+[[package]]
+name = "crossbeam-utils"
+version = "0.8.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "51887d4adc7b564537b15adcfb307936f8075dfcd5f00dde9a9f1d29383682bc"
+dependencies = [
+ "cfg-if",
+ "once_cell",
+]
+
+[[package]]
+name = "csv"
+version = "1.1.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "22813a6dc45b335f9bade10bf7271dc477e81113e89eb251a0bc2a8a81c536e1"
+dependencies = [
+ "bstr",
+ "csv-core",
+ "itoa 0.4.8",
+ "ryu",
+ "serde",
+]
+
+[[package]]
+name = "csv-core"
+version = "0.1.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2b2466559f260f48ad25fe6317b3c8dac77b5bdb5763ac7d9d6103530663bc90"
+dependencies = [
+ "memchr",
+]
+
+[[package]]
+name = "either"
+version = "1.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "90e5c1c8368803113bf0c9584fc495a58b86dc8a29edbf8fe877d21d9507e797"
+
+[[package]]
+name = "getrandom"
+version = "0.2.7"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4eb1a864a501629691edf6c15a593b7a51eebaa1e8468e9ddc623de7c9b58ec6"
+dependencies = [
+ "cfg-if",
+ "libc",
+ "wasi",
+]
+
+[[package]]
+name = "half"
+version = "1.8.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "eabb4a44450da02c90444cf74558da904edde8fb4e9035a9a6a4e15445af0bd7"
+
+[[package]]
+name = "hermit-abi"
+version = "0.1.19"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "62b467343b94ba476dcb2500d242dadbb39557df889310ac77c5d99100aaac33"
+dependencies = [
+ "libc",
+]
+
+[[package]]
+name = "icu_benchmark_macros"
+version = "0.7.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6c867656f2d9c90b13709ac88e710a9d6afe33998c1dfa22384bab8804e8b3d4"
+
+[[package]]
+name = "itertools"
+version = "0.10.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b0fd2260e829bddf4cb6ea802289de2f86d6a7a690192fbe91b3f46e0f2c8473"
+dependencies = [
+ "either",
+]
+
+[[package]]
+name = "itoa"
+version = "0.4.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "b71991ff56294aa922b450139ee08b3bfc70982c6b2c7562771375cf73542dd4"
+
+[[package]]
+name = "itoa"
+version = "1.0.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6c8af84674fe1f223a982c933a0ee1086ac4d4052aa0fb8060c12c6ad838e754"
+
+[[package]]
+name = "js-sys"
+version = "0.3.60"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "49409df3e3bf0856b916e2ceaca09ee28e6871cf7d9ce97a692cacfdb2a25a47"
+dependencies = [
+ "wasm-bindgen",
+]
+
+[[package]]
+name = "lazy_static"
+version = "1.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
+
+[[package]]
+name = "libc"
+version = "0.2.133"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c0f80d65747a3e43d1596c7c5492d95d5edddaabd45a7fcdb02b95f644164966"
+
+[[package]]
+name = "log"
+version = "0.4.17"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "abb12e687cfb44aa40f41fc3978ef76448f9b6038cad6aef4259d3c095a2382e"
+dependencies = [
+ "cfg-if",
+]
+
+[[package]]
+name = "memchr"
+version = "2.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2dffe52ecf27772e601905b7522cb4ef790d2cc203488bbd0e2fe85fcb74566d"
+
+[[package]]
+name = "memoffset"
+version = "0.6.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5aa361d4faea93603064a027415f07bd8e1d5c88c9fbf68bf56a285428fd79ce"
+dependencies = [
+ "autocfg",
+]
+
+[[package]]
+name = "num-traits"
+version = "0.2.15"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "578ede34cf02f8924ab9447f50c28075b4d3e5b269972345e7e0372b38c6cdcd"
+dependencies = [
+ "autocfg",
+]
+
+[[package]]
+name = "num_cpus"
+version = "1.13.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "19e64526ebdee182341572e50e9ad03965aa510cd94427a4549448f285e957a1"
+dependencies = [
+ "hermit-abi",
+ "libc",
+]
+
+[[package]]
+name = "once_cell"
+version = "1.15.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e82dad04139b71a90c080c8463fe0dc7902db5192d939bd0950f074d014339e1"
+
+[[package]]
+name = "oorandom"
+version = "11.1.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0ab1bc2a289d34bd04a330323ac98a1b4bc82c9d9fcb1e66b63caa84da26b575"
+
+[[package]]
+name = "plotters"
+version = "0.3.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2538b639e642295546c50fcd545198c9d64ee2a38620a628724a3b266d5fbf97"
+dependencies = [
+ "num-traits",
+ "plotters-backend",
+ "plotters-svg",
+ "wasm-bindgen",
+ "web-sys",
+]
+
+[[package]]
+name = "plotters-backend"
+version = "0.3.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "193228616381fecdc1224c62e96946dfbc73ff4384fba576e052ff8c1bea8142"
+
+[[package]]
+name = "plotters-svg"
+version = "0.3.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f9a81d2759aae1dae668f783c308bc5c8ebd191ff4184aaa1b37f65a6ae5a56f"
+dependencies = [
+ "plotters-backend",
+]
+
+[[package]]
+name = "ppv-lite86"
+version = "0.2.16"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "eb9f9e6e233e5c4a35559a617bf40a4ec447db2e84c20b55a6f83167b7e57872"
+
+[[package]]
+name = "proc-macro2"
+version = "1.0.44"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7bd7356a8122b6c4a24a82b278680c73357984ca2fc79a0f9fa6dea7dced7c58"
+dependencies = [
+ "unicode-ident",
+]
+
+[[package]]
+name = "quote"
+version = "1.0.21"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bbe448f377a7d6961e30f5955f9b8d106c3f5e449d493ee1b125c1d43c2b5179"
+dependencies = [
+ "proc-macro2",
+]
+
+[[package]]
+name = "rand"
+version = "0.8.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "34af8d1a0e25924bc5b7c43c079c942339d8f0a8b57c39049bef581b46327404"
+dependencies = [
+ "libc",
+ "rand_chacha",
+ "rand_core",
+]
+
+[[package]]
+name = "rand_chacha"
+version = "0.3.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e6c10a63a0fa32252be49d21e7709d4d4baf8d231c2dbce1eaa8141b9b127d88"
+dependencies = [
+ "ppv-lite86",
+ "rand_core",
+]
+
+[[package]]
+name = "rand_core"
+version = "0.6.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ec0be4795e2f6a28069bec0b5ff3e2ac9bafc99e6a9a7dc3547996c5c816922c"
+dependencies = [
+ "getrandom",
+]
+
+[[package]]
+name = "rayon"
+version = "1.5.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bd99e5772ead8baa5215278c9b15bf92087709e9c1b2d1f97cdb5a183c933a7d"
+dependencies = [
+ "autocfg",
+ "crossbeam-deque",
+ "either",
+ "rayon-core",
+]
+
+[[package]]
+name = "rayon-core"
+version = "1.9.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "258bcdb5ac6dad48491bb2992db6b7cf74878b0384908af124823d118c99683f"
+dependencies = [
+ "crossbeam-channel",
+ "crossbeam-deque",
+ "crossbeam-utils",
+ "num_cpus",
+]
+
+[[package]]
+name = "regex"
+version = "1.6.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4c4eb3267174b8c6c2f654116623910a0fef09c4753f8dd83db29c48a0df988b"
+dependencies = [
+ "regex-syntax",
+]
+
+[[package]]
+name = "regex-automata"
+version = "0.1.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "6c230d73fb8d8c1b9c0b3135c5142a8acee3a0558fb8db5cf1cb65f8d7862132"
+
+[[package]]
+name = "regex-syntax"
+version = "0.6.27"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a3f87b73ce11b1619a3c6332f45341e0047173771e8b8b73f87bfeefb7b56244"
+
+[[package]]
+name = "ryu"
+version = "1.0.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4501abdff3ae82a1c1b477a17252eb69cee9e66eb915c1abaa4f44d873df9f09"
+
+[[package]]
+name = "same-file"
+version = "1.0.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "93fc1dc3aaa9bfed95e02e6eadabb4baf7e3078b0bd1b4d7b6b0b68378900502"
+dependencies = [
+ "winapi-util",
+]
+
+[[package]]
+name = "scopeguard"
+version = "1.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d29ab0c6d3fc0ee92fe66e2d99f700eab17a8d57d1c1d3b748380fb20baa78cd"
+
+[[package]]
+name = "serde"
+version = "1.0.145"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "728eb6351430bccb993660dfffc5a72f91ccc1295abaa8ce19b27ebe4f75568b"
+
+[[package]]
+name = "serde_cbor"
+version = "0.11.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2bef2ebfde456fb76bbcf9f59315333decc4fda0b2b44b420243c11e0f5ec1f5"
+dependencies = [
+ "half",
+ "serde",
+]
+
+[[package]]
+name = "serde_derive"
+version = "1.0.145"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "81fa1584d3d1bcacd84c277a0dfe21f5b0f6accf4a23d04d4c6d61f1af522b4c"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
+
+[[package]]
+name = "serde_json"
+version = "1.0.85"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e55a28e3aaef9d5ce0506d0a14dbba8054ddc7e499ef522dd8b26859ec9d4a44"
+dependencies = [
+ "itoa 1.0.3",
+ "ryu",
+ "serde",
+]
+
+[[package]]
+name = "syn"
+version = "1.0.101"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e90cde112c4b9690b8cbe810cba9ddd8bc1d7472e2cae317b69e9438c1cba7d2"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "unicode-ident",
+]
+
+[[package]]
+name = "textwrap"
+version = "0.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d326610f408c7a4eb6f51c37c330e496b08506c9457c9d34287ecc38809fb060"
+dependencies = [
+ "unicode-width",
+]
+
+[[package]]
+name = "tinytemplate"
+version = "1.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "be4d6b5f19ff7664e8c98d03e2139cb510db9b0a60b55f8e8709b689d939b6bc"
+dependencies = [
+ "serde",
+ "serde_json",
+]
+
+[[package]]
+name = "unicode-ident"
+version = "1.0.4"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "dcc811dc4066ac62f84f11307873c4850cb653bfa9b1719cee2bd2204a4bc5dd"
+
+[[package]]
+name = "unicode-width"
+version = "0.1.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c0edd1e5b14653f783770bce4a4dabb4a5108a5370a5f5d8cfe8710c361f6c8b"
+
+[[package]]
+name = "walkdir"
+version = "2.3.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "808cf2735cd4b6866113f648b791c6adc5714537bc222d9347bb203386ffda56"
+dependencies = [
+ "same-file",
+ "winapi",
+ "winapi-util",
+]
+
+[[package]]
+name = "wasi"
+version = "0.11.0+wasi-snapshot-preview1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9c8d87e72b64a3b4db28d11ce29237c246188f4f51057d65a7eab63b7987e423"
+
+[[package]]
+name = "wasm-bindgen"
+version = "0.2.83"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "eaf9f5aceeec8be17c128b2e93e031fb8a4d469bb9c4ae2d7dc1888b26887268"
+dependencies = [
+ "cfg-if",
+ "wasm-bindgen-macro",
+]
+
+[[package]]
+name = "wasm-bindgen-backend"
+version = "0.2.83"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4c8ffb332579b0557b52d268b91feab8df3615f265d5270fec2a8c95b17c1142"
+dependencies = [
+ "bumpalo",
+ "log",
+ "once_cell",
+ "proc-macro2",
+ "quote",
+ "syn",
+ "wasm-bindgen-shared",
+]
+
+[[package]]
+name = "wasm-bindgen-macro"
+version = "0.2.83"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "052be0f94026e6cbc75cdefc9bae13fd6052cdcaf532fa6c45e7ae33a1e6c810"
+dependencies = [
+ "quote",
+ "wasm-bindgen-macro-support",
+]
+
+[[package]]
+name = "wasm-bindgen-macro-support"
+version = "0.2.83"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "07bc0c051dc5f23e307b13285f9d75df86bfdf816c5721e573dec1f9b8aa193c"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+ "wasm-bindgen-backend",
+ "wasm-bindgen-shared",
+]
+
+[[package]]
+name = "wasm-bindgen-shared"
+version = "0.2.83"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1c38c045535d93ec4f0b4defec448e4291638ee608530863b1e2ba115d4fff7f"
+
+[[package]]
+name = "web-sys"
+version = "0.3.60"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "bcda906d8be16e728fd5adc5b729afad4e444e106ab28cd1c7256e54fa61510f"
+dependencies = [
+ "js-sys",
+ "wasm-bindgen",
+]
+
+[[package]]
+name = "winapi"
+version = "0.3.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "5c839a674fcd7a98952e593242ea400abe93992746761e38641405d28b00f419"
+dependencies = [
+ "winapi-i686-pc-windows-gnu",
+ "winapi-x86_64-pc-windows-gnu",
+]
+
+[[package]]
+name = "winapi-i686-pc-windows-gnu"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "ac3b87c63620426dd9b991e5ce0329eff545bccbbb34f3be09ff6fb6ab51b7b6"
+
+[[package]]
+name = "winapi-util"
+version = "0.1.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "70ec6ce85bb158151cae5e5c87f95a8e97d2c0c4b001223f33a334e3ce5de178"
+dependencies = [
+ "winapi",
+]
+
+[[package]]
+name = "winapi-x86_64-pc-windows-gnu"
+version = "0.4.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "712e227841d057c1ee1cd2fb22fa7e5a5461ae8e48fa2ca79ec42cfc1931183f"
+
+[[package]]
+name = "writeable"
+version = "0.5.0"
+dependencies = [
+ "criterion",
+ "icu_benchmark_macros",
+ "rand",
+]
diff --git a/vendor/writeable/Cargo.toml b/vendor/writeable/Cargo.toml
new file mode 100644
index 000000000..1c9d41303
--- /dev/null
+++ b/vendor/writeable/Cargo.toml
@@ -0,0 +1,55 @@
+# THIS FILE IS AUTOMATICALLY GENERATED BY CARGO
+#
+# When uploading crates to the registry Cargo will automatically
+# "normalize" Cargo.toml files for maximal compatibility
+# with all versions of Cargo and also rewrite `path` dependencies
+# to registry (e.g., crates.io) dependencies.
+#
+# If you are reading this file be aware that the original Cargo.toml
+# will likely look very different (and much more reasonable).
+# See Cargo.toml.orig for the original contents.
+
+[package]
+edition = "2018"
+name = "writeable"
+version = "0.5.0"
+authors = ["The ICU4X Project Developers"]
+include = [
+ "src/**/*",
+ "examples/**/*",
+ "benches/**/*",
+ "tests/**/*",
+ "Cargo.toml",
+ "LICENSE",
+ "README.md",
+]
+description = "A more efficient alternative to fmt::Display"
+readme = "README.md"
+license = "Unicode-DFS-2016"
+repository = "https://github.com/unicode-org/icu4x"
+resolver = "2"
+
+[package.metadata.docs.rs]
+all-features = true
+
+[lib]
+path = "src/lib.rs"
+bench = false
+
+[[bench]]
+name = "writeable"
+harness = false
+
+[dev-dependencies.criterion]
+version = "0.3"
+
+[dev-dependencies.icu_benchmark_macros]
+version = "0.7"
+
+[dev-dependencies.rand]
+version = "0.8"
+features = ["small_rng"]
+
+[features]
+bench = []
+default = []
diff --git a/vendor/writeable/LICENSE b/vendor/writeable/LICENSE
new file mode 100644
index 000000000..9858d01ab
--- /dev/null
+++ b/vendor/writeable/LICENSE
@@ -0,0 +1,51 @@
+UNICODE, INC. LICENSE AGREEMENT - DATA FILES AND SOFTWARE
+
+See Terms of Use <https://www.unicode.org/copyright.html>
+for definitions of Unicode Inc.’s Data Files and Software.
+
+NOTICE TO USER: Carefully read the following legal agreement.
+BY DOWNLOADING, INSTALLING, COPYING OR OTHERWISE USING UNICODE INC.'S
+DATA FILES ("DATA FILES"), AND/OR SOFTWARE ("SOFTWARE"),
+YOU UNEQUIVOCALLY ACCEPT, AND AGREE TO BE BOUND BY, ALL OF THE
+TERMS AND CONDITIONS OF THIS AGREEMENT.
+IF YOU DO NOT AGREE, DO NOT DOWNLOAD, INSTALL, COPY, DISTRIBUTE OR USE
+THE DATA FILES OR SOFTWARE.
+
+COPYRIGHT AND PERMISSION NOTICE
+
+Copyright © 1991-2022 Unicode, Inc. All rights reserved.
+Distributed under the Terms of Use in https://www.unicode.org/copyright.html.
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of the Unicode data files and any associated documentation
+(the "Data Files") or Unicode software and any associated documentation
+(the "Software") to deal in the Data Files or Software
+without restriction, including without limitation the rights to use,
+copy, modify, merge, publish, distribute, and/or sell copies of
+the Data Files or Software, and to permit persons to whom the Data Files
+or Software are furnished to do so, provided that either
+(a) this copyright and permission notice appear with all copies
+of the Data Files or Software, or
+(b) this copyright and permission notice appear in associated
+Documentation.
+
+THE DATA FILES AND SOFTWARE ARE PROVIDED "AS IS", WITHOUT WARRANTY OF
+ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
+WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT OF THIRD PARTY RIGHTS.
+IN NO EVENT SHALL THE COPYRIGHT HOLDER OR HOLDERS INCLUDED IN THIS
+NOTICE BE LIABLE FOR ANY CLAIM, OR ANY SPECIAL INDIRECT OR CONSEQUENTIAL
+DAMAGES, OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
+DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
+TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
+PERFORMANCE OF THE DATA FILES OR SOFTWARE.
+
+Except as contained in this notice, the name of a copyright holder
+shall not be used in advertising or otherwise to promote the sale,
+use or other dealings in these Data Files or Software without prior
+written authorization of the copyright holder.
+
+—
+
+Portions of ICU4X may have been adapted from ICU4C and/or ICU4J.
+ICU 1.8.1 to ICU 57.1 © 1995-2016 International Business Machines Corporation and others.
diff --git a/vendor/writeable/README.md b/vendor/writeable/README.md
new file mode 100644
index 000000000..55343c37e
--- /dev/null
+++ b/vendor/writeable/README.md
@@ -0,0 +1,52 @@
+# writeable [![crates.io](https://img.shields.io/crates/v/writeable)](https://crates.io/crates/writeable)
+
+`writeable` is a utility crate of the [`ICU4X`] project.
+
+It includes [`Writeable`], a core trait representing an object that can be written to a
+sink implementing `std::fmt::Write`. It is an alternative to `std::fmt::Display` with the
+addition of a function indicating the number of bytes to be written.
+
+`Writeable` improves upon `std::fmt::Display` in two ways:
+
+1. More efficient, since the sink can pre-allocate bytes.
+2. Smaller code, since the format machinery can be short-circuited.
+
+## Examples
+
+```rust
+use std::fmt;
+use writeable::assert_writeable_eq;
+use writeable::LengthHint;
+use writeable::Writeable;
+
+struct WelcomeMessage<'s> {
+ pub name: &'s str,
+}
+
+impl<'s> Writeable for WelcomeMessage<'s> {
+ fn write_to<W: fmt::Write + ?Sized>(&self, sink: &mut W) -> fmt::Result {
+ sink.write_str("Hello, ")?;
+ sink.write_str(self.name)?;
+ sink.write_char('!')?;
+ Ok(())
+ }
+
+ fn writeable_length_hint(&self) -> LengthHint {
+ // "Hello, " + '!' + length of name
+ LengthHint::exact(8 + self.name.len())
+ }
+}
+
+let message = WelcomeMessage { name: "Alice" };
+assert_writeable_eq!(&message, "Hello, Alice!");
+
+// Types implementing `Writeable` are recommended to also implement `fmt::Display`.
+// This can be simply done by redirecting to the `Writeable` implementation:
+writeable::impl_display_with_writeable!(WelcomeMessage<'_>);
+```
+
+[`ICU4X`]: ../icu/index.html
+
+## More Information
+
+For more information on development, authorship, contributing etc. please visit [`ICU4X home page`](https://github.com/unicode-org/icu4x).
diff --git a/vendor/writeable/benches/writeable.rs b/vendor/writeable/benches/writeable.rs
new file mode 100644
index 000000000..fc433f895
--- /dev/null
+++ b/vendor/writeable/benches/writeable.rs
@@ -0,0 +1,162 @@
+// This file is part of ICU4X. For terms of use, please see the file
+// called LICENSE at the top level of the ICU4X source tree
+// (online at: https://github.com/unicode-org/icu4x/blob/main/LICENSE ).
+
+use criterion::{black_box, criterion_group, criterion_main, Criterion};
+use std::fmt;
+use writeable::LengthHint;
+use writeable::Writeable;
+
+/// A sample type implementing Writeable
+struct WriteableMessage<'s> {
+ message: &'s str,
+}
+
+impl Writeable for WriteableMessage<'_> {
+ fn write_to<W: fmt::Write + ?Sized>(&self, sink: &mut W) -> fmt::Result {
+ sink.write_str(self.message)
+ }
+
+ fn writeable_length_hint(&self) -> LengthHint {
+ LengthHint::exact(self.message.len())
+ }
+}
+
+writeable::impl_display_with_writeable!(WriteableMessage<'_>);
+
+/// A sample type implementing Display
+struct DisplayMessage<'s> {
+ message: &'s str,
+}
+
+impl fmt::Display for DisplayMessage<'_> {
+ fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+ f.write_str(self.message)
+ }
+}
+
+const SHORT_STR: &str = "short";
+const MEDIUM_STR: &str = "this is a medium-length string";
+const LONG_STR: &str = "this string is very very very very very very very very very very very very very very very very very very very very very very very very long";
+
+fn overview_bench(c: &mut Criterion) {
+ c.bench_function("writeable/overview", |b| {
+ b.iter(|| {
+ // This benchmark runs to_string on short, medium, and long strings in one batch.
+ WriteableMessage {
+ message: black_box(SHORT_STR),
+ }
+ .write_to_string();
+ WriteableMessage {
+ message: black_box(MEDIUM_STR),
+ }
+ .write_to_string();
+ WriteableMessage {
+ message: black_box(LONG_STR),
+ }
+ .write_to_string();
+ });
+ });
+
+ #[cfg(feature = "bench")]
+ {
+ writeable_benches(c);
+ writeable_dyn_benches(c);
+ display_benches(c);
+ }
+}
+
+#[cfg(feature = "bench")]
+fn writeable_benches(c: &mut Criterion) {
+ c.bench_function("writeable/to_string/short", |b| {
+ b.iter(|| {
+ WriteableMessage {
+ message: black_box(SHORT_STR),
+ }
+ .write_to_string()
+ .into_owned()
+ });
+ });
+ c.bench_function("writeable/to_string/medium", |b| {
+ b.iter(|| {
+ WriteableMessage {
+ message: black_box(MEDIUM_STR),
+ }
+ .write_to_string()
+ .into_owned()
+ });
+ });
+ c.bench_function("writeable/to_string/long", |b| {
+ b.iter(|| {
+ WriteableMessage {
+ message: black_box(LONG_STR),
+ }
+ .write_to_string()
+ .into_owned()
+ });
+ });
+}
+
+#[cfg(feature = "bench")]
+fn writeable_dyn_benches(c: &mut Criterion) {
+ // Same as `write_to_string`, but casts to a `dyn fmt::Write`
+ fn writeable_dyn_to_string(w: &impl Writeable) -> String {
+ let mut output = String::with_capacity(w.writeable_length_hint().capacity());
+ w.write_to(&mut output as &mut dyn fmt::Write)
+ .expect("impl Write for String is infallible");
+ output
+ }
+
+ c.bench_function("writeable_dyn/to_string/short", |b| {
+ b.iter(|| {
+ writeable_dyn_to_string(&WriteableMessage {
+ message: black_box(SHORT_STR),
+ })
+ });
+ });
+ c.bench_function("writeable_dyn/to_string/medium", |b| {
+ b.iter(|| {
+ writeable_dyn_to_string(&WriteableMessage {
+ message: black_box(MEDIUM_STR),
+ })
+ });
+ });
+ c.bench_function("writeable_dyn/to_string/long", |b| {
+ b.iter(|| {
+ writeable_dyn_to_string(&WriteableMessage {
+ message: black_box(LONG_STR),
+ })
+ });
+ });
+}
+
+#[cfg(feature = "bench")]
+fn display_benches(c: &mut Criterion) {
+ c.bench_function("display/to_string/short", |b| {
+ b.iter(|| {
+ DisplayMessage {
+ message: black_box(SHORT_STR),
+ }
+ .to_string()
+ });
+ });
+ c.bench_function("display/to_string/medium", |b| {
+ b.iter(|| {
+ DisplayMessage {
+ message: black_box(MEDIUM_STR),
+ }
+ .to_string()
+ });
+ });
+ c.bench_function("display/to_string/long", |b| {
+ b.iter(|| {
+ DisplayMessage {
+ message: black_box(LONG_STR),
+ }
+ .to_string()
+ });
+ });
+}
+
+criterion_group!(benches, overview_bench,);
+criterion_main!(benches);
diff --git a/vendor/writeable/examples/writeable_message.rs b/vendor/writeable/examples/writeable_message.rs
new file mode 100644
index 000000000..b342fdb26
--- /dev/null
+++ b/vendor/writeable/examples/writeable_message.rs
@@ -0,0 +1,60 @@
+// This file is part of ICU4X. For terms of use, please see the file
+// called LICENSE at the top level of the ICU4X source tree
+// (online at: https://github.com/unicode-org/icu4x/blob/main/LICENSE ).
+
+// This example illustrates a very simple type implementing Writeable.
+icu_benchmark_macros::static_setup!();
+
+use std::fmt;
+use writeable::*;
+
+struct WriteableMessage<W: Writeable>(W);
+
+const GREETING: Part = Part {
+ category: "meaning",
+ value: "greeting",
+};
+
+const EMOJI: Part = Part {
+ category: "meaning",
+ value: "emoji",
+};
+
+impl<V: Writeable> Writeable for WriteableMessage<V> {
+ fn write_to_parts<W: PartsWrite + ?Sized>(&self, sink: &mut W) -> fmt::Result {
+ use fmt::Write;
+ sink.with_part(GREETING, |g| {
+ g.write_str("Hello")?;
+ g.write_str(" ")?;
+ self.0.write_to(g)
+ })?;
+ sink.write_char(' ')?;
+ sink.with_part(EMOJI, |e| e.write_char('😅'))
+ }
+
+ fn writeable_length_hint(&self) -> LengthHint {
+ LengthHint::exact(11) + self.0.writeable_length_hint()
+ }
+}
+
+impl<V: Writeable> fmt::Display for WriteableMessage<V> {
+ #[inline]
+ fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
+ self.write_to(f)
+ }
+}
+
+fn main() {
+ icu_benchmark_macros::main_setup!();
+
+ let (string, parts) = writeable_to_parts_for_test(&WriteableMessage("world")).unwrap();
+
+ assert_eq!(string, "Hello world 😅");
+
+ // Print the greeting only
+ let (start, end, _) = parts
+ .into_iter()
+ .find(|(_, _, part)| part == &GREETING)
+ .unwrap();
+ println!("{}", &string[start..end]);
+}
diff --git a/vendor/writeable/src/impls.rs b/vendor/writeable/src/impls.rs
new file mode 100644
index 000000000..649ede4d5
--- /dev/null
+++ b/vendor/writeable/src/impls.rs
@@ -0,0 +1,213 @@
+// This file is part of ICU4X. For terms of use, please see the file
+// called LICENSE at the top level of the ICU4X source tree
+// (online at: https://github.com/unicode-org/icu4x/blob/main/LICENSE ).
+
+use crate::*;
+use alloc::borrow::Cow;
+use core::fmt;
+
+macro_rules! impl_write_num {
+ ($u:ty, $i:ty, $test:ident, $log10:ident) => {
+ impl $crate::Writeable for $u {
+ fn write_to<W: core::fmt::Write + ?Sized>(&self, sink: &mut W) -> core::fmt::Result {
+ let mut buf = [b'0'; $log10(<$u>::MAX) as usize + 1];
+ let mut n = *self;
+ let mut i = buf.len();
+ #[allow(clippy::indexing_slicing)] // n < 10^i
+ while n != 0 {
+ i -= 1;
+ buf[i] = b'0' + (n % 10) as u8;
+ n /= 10;
+ }
+ if i == buf.len() {
+ debug_assert_eq!(*self, 0);
+ i -= 1;
+ }
+ #[allow(clippy::indexing_slicing)] // buf is ASCII
+ let s = unsafe { core::str::from_utf8_unchecked(&buf[i..]) };
+ sink.write_str(s)
+ }
+
+ fn writeable_length_hint(&self) -> $crate::LengthHint {
+ $crate::LengthHint::exact(if *self == 0 {
+ 1
+ } else {
+ $log10(*self) as usize + 1
+ })
+ }
+ }
+
+ // TODO: use the library functions once stabilized.
+ // https://github.com/unicode-org/icu4x/issues/1428
+ #[inline]
+ const fn $log10(s: $u) -> u32 {
+ let b = (<$u>::BITS - 1) - s.leading_zeros();
+ // s ∈ [2ᵇ, 2ᵇ⁺¹-1] => ⌊log₁₀(s)⌋ ∈ [⌊log₁₀(2ᵇ)⌋, ⌊log₁₀(2ᵇ⁺¹-1)⌋]
+ // <=> ⌊log₁₀(s)⌋ ∈ [⌊log₁₀(2ᵇ)⌋, ⌊log₁₀(2ᵇ⁺¹)⌋]
+ // <=> ⌊log₁₀(s)⌋ ∈ [⌊b log₁₀(2)⌋, ⌊(b+1) log₁₀(2)⌋]
+ // The second line holds because there is no integer in
+ // [log₁₀(2ᶜ-1), log₁₀(2ᶜ)], if there were, there'd be some 10ⁿ in
+ // [2ᶜ-1, 2ᶜ], but it can't be 2ᶜ-1 due to parity nor 2ᶜ due to prime
+ // factors.
+
+ const M: u32 = (core::f64::consts::LOG10_2 * (1 << 26) as f64) as u32;
+ let low = (b * M) >> 26;
+ let high = ((b + 1) * M) >> 26;
+
+ // If the bounds aren't tight (e.g. 87 ∈ [64, 127] ⟹ ⌊log₁₀(87)⌋ ∈ [1,2]),
+ // compare to 10ʰ (100). This shouldn't happen too often as there are more
+ // powers of 2 than 10 (it happens for 14% of u32s).
+ if high == low {
+ low
+ } else if s < (10 as $u).pow(high) {
+ low
+ } else {
+ high
+ }
+ }
+
+ impl $crate::Writeable for $i {
+ fn write_to<W: core::fmt::Write + ?Sized>(&self, sink: &mut W) -> core::fmt::Result {
+ if self.is_negative() {
+ sink.write_str("-")?;
+ }
+ self.unsigned_abs().write_to(sink)
+ }
+
+ fn writeable_length_hint(&self) -> $crate::LengthHint {
+ $crate::LengthHint::exact(if self.is_negative() { 1 } else { 0 })
+ + self.unsigned_abs().writeable_length_hint()
+ }
+ }
+
+ #[test]
+ fn $test() {
+ use $crate::assert_writeable_eq;
+ assert_writeable_eq!(&(0 as $u), "0");
+ assert_writeable_eq!(&(0 as $u), "0");
+ assert_writeable_eq!(&(-0 as $i), "0");
+ assert_writeable_eq!(&(1 as $u), "1");
+ assert_writeable_eq!(&(1 as $i), "1");
+ assert_writeable_eq!(&(-1 as $i), "-1");
+ assert_writeable_eq!(&(10 as $u), "10");
+ assert_writeable_eq!(&(10 as $i), "10");
+ assert_writeable_eq!(&(-10 as $i), "-10");
+ assert_writeable_eq!(&(99 as $u), "99");
+ assert_writeable_eq!(&(99 as $i), "99");
+ assert_writeable_eq!(&(-99 as $i), "-99");
+ assert_writeable_eq!(&(100 as $u), "100");
+ assert_writeable_eq!(&(-100 as $i), "-100");
+ assert_writeable_eq!(&<$u>::MAX, <$u>::MAX.to_string());
+ assert_writeable_eq!(&<$i>::MAX, <$i>::MAX.to_string());
+ assert_writeable_eq!(&<$i>::MIN, <$i>::MIN.to_string());
+
+ use rand::{rngs::SmallRng, Rng, SeedableRng};
+ let mut rng = SmallRng::seed_from_u64(4); // chosen by fair dice roll.
+ // guaranteed to be random.
+ for _ in 0..1000 {
+ let rand = rng.gen::<$u>();
+ assert_writeable_eq!(rand, rand.to_string());
+ }
+ }
+ };
+}
+
+impl_write_num!(u8, i8, test_u8, log10_u8);
+impl_write_num!(u16, i16, test_u16, log10_u16);
+impl_write_num!(u32, i32, test_u32, log10_u32);
+impl_write_num!(u64, i64, test_u64, log10_u64);
+impl_write_num!(u128, i128, test_u128, log10_u128);
+
+#[test]
+fn assert_log10_approximation() {
+ for i in 1..u128::BITS {
+ assert_eq!(i * 59 / 196, 2f64.powf(i.into()).log10().floor() as u32);
+ }
+}
+
+impl Writeable for str {
+ #[inline]
+ fn write_to<W: fmt::Write + ?Sized>(&self, sink: &mut W) -> fmt::Result {
+ sink.write_str(self)
+ }
+
+ #[inline]
+ fn writeable_length_hint(&self) -> LengthHint {
+ LengthHint::exact(self.len())
+ }
+
+ /// Returns a borrowed `str`.
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use std::borrow::Cow;
+ /// use writeable::Writeable;
+ ///
+ /// let cow = "foo".write_to_string();
+ /// assert!(matches!(cow, Cow::Borrowed(_)));
+ /// ```
+ #[inline]
+ fn write_to_string(&self) -> Cow<str> {
+ Cow::Borrowed(self)
+ }
+}
+
+impl Writeable for String {
+ #[inline]
+ fn write_to<W: fmt::Write + ?Sized>(&self, sink: &mut W) -> fmt::Result {
+ sink.write_str(self)
+ }
+
+ #[inline]
+ fn writeable_length_hint(&self) -> LengthHint {
+ LengthHint::exact(self.len())
+ }
+
+ #[inline]
+ fn write_to_string(&self) -> Cow<str> {
+ Cow::Borrowed(self)
+ }
+}
+
+impl<'a, T: Writeable + ?Sized> Writeable for &T {
+ #[inline]
+ fn write_to<W: fmt::Write + ?Sized>(&self, sink: &mut W) -> fmt::Result {
+ (*self).write_to(sink)
+ }
+
+ #[inline]
+ fn write_to_parts<W: PartsWrite + ?Sized>(&self, sink: &mut W) -> fmt::Result {
+ (*self).write_to_parts(sink)
+ }
+
+ #[inline]
+ fn writeable_length_hint(&self) -> LengthHint {
+ (*self).writeable_length_hint()
+ }
+
+ #[inline]
+ fn write_to_string(&self) -> Cow<str> {
+ (*self).write_to_string()
+ }
+}
+
+#[test]
+fn test_string_impls() {
+ fn check_writeable_slice<W: Writeable>(writeables: &[W]) {
+ assert_writeable_eq!(&writeables[0], "");
+ assert_writeable_eq!(&writeables[1], "abc");
+ }
+
+ // test str impl
+ let arr: &[&str] = &["", "abc"];
+ check_writeable_slice(arr);
+
+ // test String impl
+ let arr: &[String] = &["".to_string(), "abc".to_string()];
+ check_writeable_slice(arr);
+
+ // test &T impl
+ let arr: &[&String] = &[&"".to_string(), &"abc".to_string()];
+ check_writeable_slice(arr);
+}
diff --git a/vendor/writeable/src/lib.rs b/vendor/writeable/src/lib.rs
new file mode 100644
index 000000000..66be7f33b
--- /dev/null
+++ b/vendor/writeable/src/lib.rs
@@ -0,0 +1,390 @@
+// This file is part of ICU4X. For terms of use, please see the file
+// called LICENSE at the top level of the ICU4X source tree
+// (online at: https://github.com/unicode-org/icu4x/blob/main/LICENSE ).
+
+// https://github.com/unicode-org/icu4x/blob/main/docs/process/boilerplate.md#library-annotations
+#![cfg_attr(all(not(test), not(doc)), no_std)]
+#![cfg_attr(
+ not(test),
+ deny(
+ clippy::indexing_slicing,
+ clippy::unwrap_used,
+ clippy::expect_used,
+ clippy::panic,
+ clippy::exhaustive_structs,
+ clippy::exhaustive_enums,
+ missing_debug_implementations,
+ )
+)]
+
+//! `writeable` is a utility crate of the [`ICU4X`] project.
+//!
+//! It includes [`Writeable`], a core trait representing an object that can be written to a
+//! sink implementing `std::fmt::Write`. It is an alternative to `std::fmt::Display` with the
+//! addition of a function indicating the number of bytes to be written.
+//!
+//! `Writeable` improves upon `std::fmt::Display` in two ways:
+//!
+//! 1. More efficient, since the sink can pre-allocate bytes.
+//! 2. Smaller code, since the format machinery can be short-circuited.
+//!
+//! # Examples
+//!
+//! ```
+//! use std::fmt;
+//! use writeable::assert_writeable_eq;
+//! use writeable::LengthHint;
+//! use writeable::Writeable;
+//!
+//! struct WelcomeMessage<'s> {
+//! pub name: &'s str,
+//! }
+//!
+//! impl<'s> Writeable for WelcomeMessage<'s> {
+//! fn write_to<W: fmt::Write + ?Sized>(&self, sink: &mut W) -> fmt::Result {
+//! sink.write_str("Hello, ")?;
+//! sink.write_str(self.name)?;
+//! sink.write_char('!')?;
+//! Ok(())
+//! }
+//!
+//! fn writeable_length_hint(&self) -> LengthHint {
+//! // "Hello, " + '!' + length of name
+//! LengthHint::exact(8 + self.name.len())
+//! }
+//! }
+//!
+//! let message = WelcomeMessage { name: "Alice" };
+//! assert_writeable_eq!(&message, "Hello, Alice!");
+//!
+//! // Types implementing `Writeable` are recommended to also implement `fmt::Display`.
+//! // This can be simply done by redirecting to the `Writeable` implementation:
+//! writeable::impl_display_with_writeable!(WelcomeMessage<'_>);
+//! ```
+//!
+//! [`ICU4X`]: ../icu/index.html
+
+extern crate alloc;
+
+mod impls;
+mod ops;
+
+use alloc::borrow::Cow;
+use alloc::string::String;
+use alloc::vec::Vec;
+use core::fmt;
+
+/// A hint to help consumers of `Writeable` pre-allocate bytes before they call
+/// [`write_to`](Writeable::write_to).
+///
+/// This behaves like `Iterator::size_hint`: it is a tuple where the first element is the
+/// lower bound, and the second element is the upper bound. If the upper bound is `None`
+/// either there is no known upper bound, or the upper bound is larger than `usize`.
+///
+/// `LengthHint` implements std`::ops::{Add, Mul}` and similar traits for easy composition.
+/// During computation, the lower bound will saturate at `usize::MAX`, while the upper
+/// bound will become `None` if `usize::MAX` is exceeded.
+#[derive(Debug, PartialEq, Eq, Copy, Clone)]
+#[non_exhaustive]
+pub struct LengthHint(pub usize, pub Option<usize>);
+
+impl LengthHint {
+ pub fn undefined() -> Self {
+ Self(0, None)
+ }
+
+ /// `write_to` will use exactly n bytes.
+ pub fn exact(n: usize) -> Self {
+ Self(n, Some(n))
+ }
+
+ /// `write_to` will use at least n bytes.
+ pub fn at_least(n: usize) -> Self {
+ Self(n, None)
+ }
+
+ /// `write_to` will use at most n bytes.
+ pub fn at_most(n: usize) -> Self {
+ Self(0, Some(n))
+ }
+
+ /// `write_to` will use between `n` and `m` bytes.
+ pub fn between(n: usize, m: usize) -> Self {
+ Self(Ord::min(n, m), Some(Ord::max(n, m)))
+ }
+
+ /// Returns a recommendation for the number of bytes to pre-allocate.
+ /// If an upper bound exists, this is used, otherwise the lower bound
+ /// (which might be 0).
+ ///
+ /// # Examples
+ ///
+ /// ```
+ /// use writeable::Writeable;
+ ///
+ /// fn pre_allocate_string(w: &impl Writeable) -> String {
+ /// String::with_capacity(w.writeable_length_hint().capacity())
+ /// }
+ /// ```
+ pub fn capacity(&self) -> usize {
+ self.1.unwrap_or(self.0)
+ }
+
+ /// Returns whether the `LengthHint` indicates that the string is exactly 0 bytes long.
+ pub fn is_zero(&self) -> bool {
+ self.1 == Some(0)
+ }
+}
+
+#[derive(Clone, Copy, Debug, PartialEq)]
+#[allow(clippy::exhaustive_structs)] // stable
+pub struct Part {
+ pub category: &'static str,
+ pub value: &'static str,
+}
+
+/// A sink that supports annotating parts of the string with `Part`s.
+pub trait PartsWrite: fmt::Write {
+ type SubPartsWrite: PartsWrite + ?Sized;
+
+ fn with_part(
+ &mut self,
+ part: Part,
+ f: impl FnMut(&mut Self::SubPartsWrite) -> fmt::Result,
+ ) -> fmt::Result;
+}
+
+/// `Writeable` is an alternative to `std::fmt::Display` with the addition of a length function.
+pub trait Writeable {
+ /// Writes a string to the given sink. Errors from the sink are bubbled up.
+ /// The default implementation delegates to `write_to_parts`, and discards any
+ /// `Part` annotations.
+ fn write_to<W: fmt::Write + ?Sized>(&self, sink: &mut W) -> fmt::Result {
+ struct CoreWriteAsPartsWrite<W: fmt::Write + ?Sized>(W);
+ impl<W: fmt::Write + ?Sized> fmt::Write for CoreWriteAsPartsWrite<W> {
+ fn write_str(&mut self, s: &str) -> fmt::Result {
+ self.0.write_str(s)
+ }
+
+ fn write_char(&mut self, c: char) -> fmt::Result {
+ self.0.write_char(c)
+ }
+ }
+
+ impl<W: fmt::Write + ?Sized> PartsWrite for CoreWriteAsPartsWrite<W> {
+ type SubPartsWrite = CoreWriteAsPartsWrite<W>;
+
+ fn with_part(
+ &mut self,
+ _part: Part,
+ mut f: impl FnMut(&mut Self::SubPartsWrite) -> fmt::Result,
+ ) -> fmt::Result {
+ f(self)
+ }
+ }
+
+ self.write_to_parts(&mut CoreWriteAsPartsWrite(sink))
+ }
+
+ /// Write bytes and `Part` annotations to the given sink. Errors from the
+ /// sink are bubbled up. The default implementation delegates to `write_to`,
+ /// and doesn't produce any `Part` annotations.
+ fn write_to_parts<S: PartsWrite + ?Sized>(&self, sink: &mut S) -> fmt::Result {
+ self.write_to(sink)
+ }
+
+ /// Returns a hint for the number of UTF-8 bytes that will be written to the sink.
+ ///
+ /// Override this method if it can be computed quickly.
+ fn writeable_length_hint(&self) -> LengthHint {
+ LengthHint::undefined()
+ }
+
+ /// Creates a new `String` with the data from this `Writeable`. Like `ToString`,
+ /// but smaller and faster.
+ ///
+ /// The default impl allocates an owned `String`. However, if it is possible to return a
+ /// borrowed string, overwrite this method to return a `Cow::Borrowed`.
+ ///
+ /// To remove the `Cow` wrapper, call `.into_owned()` or `.as_str()` as appropriate.
+ ///
+ /// # Examples
+ ///
+ /// Inspect a `Writeable` before writing it to the sink:
+ ///
+ /// ```
+ /// use core::fmt::{Result, Write};
+ /// use writeable::Writeable;
+ ///
+ /// fn write_if_ascii<W, S>(w: &W, sink: &mut S) -> Result
+ /// where
+ /// W: Writeable + ?Sized,
+ /// S: Write + ?Sized,
+ /// {
+ /// let s = w.write_to_string();
+ /// if s.is_ascii() {
+ /// sink.write_str(&s)
+ /// } else {
+ /// Ok(())
+ /// }
+ /// }
+ /// ```
+ ///
+ /// Convert the `Writeable` into a fully owned `String`:
+ ///
+ /// ```
+ /// use writeable::Writeable;
+ ///
+ /// fn make_string(w: &impl Writeable) -> String {
+ /// w.write_to_string().into_owned()
+ /// }
+ /// ```
+ fn write_to_string(&self) -> Cow<str> {
+ let mut output = String::with_capacity(self.writeable_length_hint().capacity());
+ let _ = self.write_to(&mut output);
+ Cow::Owned(output)
+ }
+}
+
+/// Implements [`Display`](core::fmt::Display) for types that implement [`Writeable`].
+///
+/// It's recommended to do this for every [`Writeable`] type, as it will add
+/// support for `core::fmt` features like [`fmt!`](std::fmt),
+/// [`print!`](std::print), [`write!`](std::write), etc.
+#[macro_export]
+macro_rules! impl_display_with_writeable {
+ ($type:ty) => {
+ /// This trait is implemented for compatibility with [`fmt!`](alloc::fmt).
+ /// To create a string, [`Writeable::write_to_string`] is usually more efficient.
+ impl core::fmt::Display for $type {
+ #[inline]
+ fn fmt(&self, f: &mut core::fmt::Formatter) -> core::fmt::Result {
+ $crate::Writeable::write_to(&self, f)
+ }
+ }
+ };
+}
+
+/// Testing macros for types implementing Writeable. The first argument should be a
+/// `Writeable`, the second argument a string, and the third argument (*_parts_eq only)
+/// a list of parts (`[(usize, usize, Part)]`).
+///
+/// The macros tests for equality of string content, parts (*_parts_eq only), and
+/// verify the size hint.
+///
+/// # Examples
+///
+/// ```
+/// # use writeable::Writeable;
+/// # use writeable::LengthHint;
+/// # use writeable::Part;
+/// # use writeable::assert_writeable_eq;
+/// # use writeable::assert_writeable_parts_eq;
+/// # use std::fmt::{self, Write};
+///
+/// const WORD: Part = Part {
+/// category: "foo",
+/// value: "word",
+/// };
+///
+/// struct Demo;
+/// impl Writeable for Demo {
+/// fn write_to_parts<S: writeable::PartsWrite + ?Sized>(&self, sink: &mut S) -> fmt::Result {
+/// sink.with_part(WORD, |w| w.write_str("foo"))
+/// }
+/// fn writeable_length_hint(&self) -> LengthHint {
+/// LengthHint::exact(3)
+/// }
+/// }
+///
+/// writeable::impl_display_with_writeable!(Demo);
+///
+/// assert_writeable_eq!(&Demo, "foo");
+/// assert_writeable_eq!(&Demo, "foo", "Message: {}", "Hello World");
+///
+/// assert_writeable_parts_eq!(&Demo, "foo", [(0, 3, WORD)]);
+/// assert_writeable_parts_eq!(&Demo, "foo", [(0, 3, WORD)], "Message: {}", "Hello World");
+/// ```
+#[macro_export]
+macro_rules! assert_writeable_eq {
+ ($actual_writeable:expr, $expected_str:expr $(,)?) => {
+ $crate::assert_writeable_eq!($actual_writeable, $expected_str, "");
+ };
+ ($actual_writeable:expr, $expected_str:expr, $($arg:tt)+) => {{
+ let actual_writeable = &$actual_writeable;
+ let (actual_str, _) = $crate::writeable_to_parts_for_test(actual_writeable).unwrap();
+ assert_eq!(actual_str, $expected_str, $($arg)*);
+ assert_eq!(actual_str, $crate::Writeable::write_to_string(actual_writeable), $($arg)+);
+ let length_hint = $crate::Writeable::writeable_length_hint(actual_writeable);
+ assert!(length_hint.0 <= actual_str.len(), $($arg)*);
+ if let Some(upper) = length_hint.1 {
+ assert!(actual_str.len() <= upper, $($arg)*);
+ }
+ }};
+}
+
+/// See [`assert_writeable_eq`].
+#[macro_export]
+macro_rules! assert_writeable_parts_eq {
+ ($actual_writeable:expr, $expected_str:expr, $expected_parts:expr $(,)?) => {
+ $crate::assert_writeable_parts_eq!($actual_writeable, $expected_str, $expected_parts, "");
+ };
+ ($actual_writeable:expr, $expected_str:expr, $expected_parts:expr, $($arg:tt)+) => {{
+ let actual_writeable = &$actual_writeable;
+ let (actual_str, actual_parts) = $crate::writeable_to_parts_for_test(actual_writeable).unwrap();
+ assert_eq!(actual_str, $expected_str, $($arg)+);
+ assert_eq!(actual_str, $crate::Writeable::write_to_string(actual_writeable), $($arg)+);
+ assert_eq!(actual_parts, $expected_parts, $($arg)+);
+ let length_hint = $crate::Writeable::writeable_length_hint(actual_writeable);
+ assert!(length_hint.0 <= actual_str.len(), $($arg)+);
+ if let Some(upper) = length_hint.1 {
+ assert!(actual_str.len() <= upper, $($arg)+);
+ }
+ }};
+}
+
+#[doc(hidden)]
+#[allow(clippy::type_complexity)]
+pub fn writeable_to_parts_for_test<W: Writeable>(
+ writeable: &W,
+) -> Result<(String, Vec<(usize, usize, Part)>), fmt::Error> {
+ struct State {
+ string: alloc::string::String,
+ parts: Vec<(usize, usize, Part)>,
+ }
+
+ impl fmt::Write for State {
+ fn write_str(&mut self, s: &str) -> fmt::Result {
+ self.string.write_str(s)
+ }
+ fn write_char(&mut self, c: char) -> fmt::Result {
+ self.string.write_char(c)
+ }
+ }
+
+ impl PartsWrite for State {
+ type SubPartsWrite = Self;
+ fn with_part(
+ &mut self,
+ part: Part,
+ mut f: impl FnMut(&mut Self::SubPartsWrite) -> fmt::Result,
+ ) -> fmt::Result {
+ let start = self.string.len();
+ f(self)?;
+ self.parts.push((start, self.string.len(), part));
+ Ok(())
+ }
+ }
+
+ let mut state = State {
+ string: alloc::string::String::new(),
+ parts: Vec::new(),
+ };
+ writeable.write_to_parts(&mut state)?;
+
+ // Sort by first open and last closed
+ state
+ .parts
+ .sort_unstable_by_key(|(begin, end, _)| (*begin, end.wrapping_neg()));
+ Ok((state.string, state.parts))
+}
diff --git a/vendor/writeable/src/ops.rs b/vendor/writeable/src/ops.rs
new file mode 100644
index 000000000..3ed4406d7
--- /dev/null
+++ b/vendor/writeable/src/ops.rs
@@ -0,0 +1,291 @@
+// This file is part of ICU4X. For terms of use, please see the file
+// called LICENSE at the top level of the ICU4X source tree
+// (online at: https://github.com/unicode-org/icu4x/blob/main/LICENSE ).
+
+use crate::LengthHint;
+
+impl core::ops::Add<LengthHint> for LengthHint {
+ type Output = Self;
+
+ fn add(self, other: LengthHint) -> Self {
+ LengthHint(
+ self.0.saturating_add(other.0),
+ match (self.1, other.1) {
+ (Some(c), Some(d)) => c.checked_add(d),
+ _ => None,
+ },
+ )
+ }
+}
+
+impl core::ops::AddAssign<LengthHint> for LengthHint {
+ fn add_assign(&mut self, other: Self) {
+ *self = *self + other;
+ }
+}
+
+impl core::iter::Sum<LengthHint> for LengthHint {
+ fn sum<I>(iter: I) -> Self
+ where
+ I: Iterator<Item = LengthHint>,
+ {
+ iter.fold(LengthHint::exact(0), core::ops::Add::add)
+ }
+}
+
+impl core::ops::Add<usize> for LengthHint {
+ type Output = Self;
+
+ fn add(self, other: usize) -> Self {
+ Self(
+ self.0.saturating_add(other),
+ self.1.and_then(|upper| upper.checked_add(other)),
+ )
+ }
+}
+
+impl core::ops::AddAssign<usize> for LengthHint {
+ fn add_assign(&mut self, other: usize) {
+ *self = *self + other;
+ }
+}
+
+impl core::ops::Mul<usize> for LengthHint {
+ type Output = Self;
+
+ fn mul(self, other: usize) -> Self {
+ Self(
+ self.0.saturating_mul(other),
+ self.1.and_then(|upper| upper.checked_mul(other)),
+ )
+ }
+}
+
+impl core::ops::MulAssign<usize> for LengthHint {
+ fn mul_assign(&mut self, other: usize) {
+ *self = *self * other;
+ }
+}
+
+impl core::ops::BitOr<LengthHint> for LengthHint {
+ type Output = Self;
+
+ /// Returns a new hint that is correct wherever `self` is correct, and wherever
+ /// `other` is correct.
+ ///
+ /// Example:
+ /// ```
+ /// # use writeable::{LengthHint, Writeable};
+ /// # use core::fmt;
+ /// # fn coin_flip() -> bool { true }
+ ///
+ /// struct NonDeterministicWriteable(String, String);
+ ///
+ /// impl Writeable for NonDeterministicWriteable {
+ /// fn write_to<W: fmt::Write + ?Sized>(&self, sink: &mut W) -> fmt::Result {
+ /// sink.write_str(if coin_flip() { &self.0 } else { &self.1 })
+ /// }
+ ///
+ /// fn writeable_length_hint(&self) -> LengthHint {
+ /// LengthHint::exact(self.0.len()) | LengthHint::exact(self.1.len())
+ /// }
+ /// }
+ ///
+ /// writeable::impl_display_with_writeable!(NonDeterministicWriteable);
+ /// ```
+ fn bitor(self, other: LengthHint) -> Self {
+ LengthHint(
+ Ord::min(self.0, other.0),
+ match (self.1, other.1) {
+ (Some(c), Some(d)) => Some(Ord::max(c, d)),
+ _ => None,
+ },
+ )
+ }
+}
+
+impl core::ops::BitOrAssign<LengthHint> for LengthHint {
+ fn bitor_assign(&mut self, other: Self) {
+ *self = *self | other;
+ }
+}
+
+impl core::iter::Sum<usize> for LengthHint {
+ fn sum<I>(iter: I) -> Self
+ where
+ I: Iterator<Item = usize>,
+ {
+ LengthHint::exact(iter.sum::<usize>())
+ }
+}
+
+#[cfg(test)]
+mod tests {
+ use super::*;
+
+ #[test]
+ fn test_add() {
+ assert_eq!(LengthHint::exact(3) + 2, LengthHint::exact(5));
+ assert_eq!(
+ LengthHint::exact(3) + LengthHint::exact(2),
+ LengthHint::exact(5)
+ );
+ assert_eq!(
+ LengthHint::exact(3) + LengthHint::undefined(),
+ LengthHint::at_least(3)
+ );
+
+ assert_eq!(LengthHint::undefined() + 2, LengthHint::at_least(2));
+ assert_eq!(
+ LengthHint::undefined() + LengthHint::exact(2),
+ LengthHint::at_least(2)
+ );
+ assert_eq!(
+ LengthHint::undefined() + LengthHint::undefined(),
+ LengthHint::undefined()
+ );
+
+ assert_eq!(
+ LengthHint::at_least(15) + LengthHint::exact(3),
+ LengthHint::at_least(18)
+ );
+
+ assert_eq!(
+ LengthHint::at_least(15) + LengthHint::at_most(3),
+ LengthHint::at_least(15)
+ );
+
+ assert_eq!(LengthHint::between(48, 92) + 5, LengthHint::between(53, 97));
+
+ let mut len = LengthHint::exact(5);
+ len += LengthHint::exact(3);
+ assert_eq!(len, LengthHint::exact(8));
+ len += 2;
+ assert_eq!(len, LengthHint::exact(10));
+ len += LengthHint::undefined();
+ assert_eq!(len, LengthHint::at_least(10));
+
+ len += LengthHint::exact(3);
+ assert_eq!(len, LengthHint::at_least(13));
+ len += 2;
+ assert_eq!(len, LengthHint::at_least(15));
+ len += LengthHint::undefined();
+ assert_eq!(len, LengthHint::at_least(15));
+
+ assert_eq!(
+ LengthHint::between(usize::MAX - 10, usize::MAX - 5) + LengthHint::exact(20),
+ LengthHint::at_least(usize::MAX)
+ );
+ }
+
+ #[test]
+ fn test_sum() {
+ let lens = vec![
+ LengthHint::exact(4),
+ LengthHint::exact(1),
+ LengthHint::exact(1),
+ ];
+ assert_eq!(
+ lens.iter().copied().sum::<LengthHint>(),
+ LengthHint::exact(6)
+ );
+
+ let lens = vec![
+ LengthHint::exact(4),
+ LengthHint::undefined(),
+ LengthHint::at_least(1),
+ ];
+ assert_eq!(
+ lens.iter().copied().sum::<LengthHint>(),
+ LengthHint::at_least(5)
+ );
+
+ let lens = vec![
+ LengthHint::exact(4),
+ LengthHint::undefined(),
+ LengthHint::at_most(1),
+ ];
+ assert_eq!(
+ lens.iter().copied().sum::<LengthHint>(),
+ LengthHint::at_least(4)
+ );
+
+ let lens = vec![4, 1, 1];
+ assert_eq!(
+ lens.iter().copied().sum::<LengthHint>(),
+ LengthHint::exact(6)
+ );
+ }
+
+ #[test]
+ fn test_mul() {
+ assert_eq!(LengthHint::exact(3) * 2, LengthHint::exact(6));
+
+ assert_eq!(LengthHint::undefined() * 2, LengthHint::undefined());
+
+ assert_eq!(
+ LengthHint::between(48, 92) * 2,
+ LengthHint::between(96, 184)
+ );
+
+ let mut len = LengthHint::exact(5);
+ len *= 2;
+ assert_eq!(len, LengthHint::exact(10));
+
+ assert_eq!(
+ LengthHint::between(usize::MAX - 10, usize::MAX - 5) * 2,
+ LengthHint::at_least(usize::MAX)
+ );
+ }
+
+ #[test]
+ fn test_bitor() {
+ assert_eq!(
+ LengthHint::exact(3) | LengthHint::exact(2),
+ LengthHint::between(2, 3)
+ );
+ assert_eq!(
+ LengthHint::exact(3) | LengthHint::undefined(),
+ LengthHint::undefined()
+ );
+
+ assert_eq!(
+ LengthHint::undefined() | LengthHint::undefined(),
+ LengthHint::undefined()
+ );
+
+ assert_eq!(
+ LengthHint::exact(10) | LengthHint::exact(10),
+ LengthHint::exact(10)
+ );
+
+ assert_eq!(
+ LengthHint::at_least(15) | LengthHint::exact(3),
+ LengthHint::at_least(3)
+ );
+
+ assert_eq!(
+ LengthHint::at_least(15) | LengthHint::at_most(18),
+ LengthHint::undefined()
+ );
+
+ assert_eq!(
+ LengthHint::at_least(15) | LengthHint::at_least(18),
+ LengthHint::at_least(15)
+ );
+
+ assert_eq!(
+ LengthHint::at_most(15) | LengthHint::at_most(18),
+ LengthHint::at_most(18)
+ );
+
+ assert_eq!(
+ LengthHint::between(5, 10) | LengthHint::at_most(3),
+ LengthHint::at_most(10)
+ );
+
+ let mut len = LengthHint::exact(5);
+ len |= LengthHint::exact(3);
+ assert_eq!(len, LengthHint::between(5, 3));
+ }
+}
diff --git a/vendor/writeable/tests/writeable.rs b/vendor/writeable/tests/writeable.rs
new file mode 100644
index 000000000..b48310e88
--- /dev/null
+++ b/vendor/writeable/tests/writeable.rs
@@ -0,0 +1,34 @@
+// This file is part of ICU4X. For terms of use, please see the file
+// called LICENSE at the top level of the ICU4X source tree
+// (online at: https://github.com/unicode-org/icu4x/blob/main/LICENSE ).
+
+use std::fmt;
+use writeable::assert_writeable_eq;
+use writeable::LengthHint;
+use writeable::Writeable;
+
+/// A sample type implementing Writeable
+struct WriteableMessage<'s> {
+ message: &'s str,
+}
+
+impl Writeable for WriteableMessage<'_> {
+ fn write_to<W: fmt::Write + ?Sized>(&self, sink: &mut W) -> fmt::Result {
+ sink.write_str(self.message)
+ }
+
+ fn writeable_length_hint(&self) -> LengthHint {
+ LengthHint::exact(self.message.len())
+ }
+}
+
+writeable::impl_display_with_writeable!(WriteableMessage<'_>);
+
+#[test]
+fn test_basic() {
+ let input_string = "hello world";
+ let message = WriteableMessage {
+ message: input_string,
+ };
+ assert_writeable_eq!(&message, input_string);
+}