diff --git a/.cirrus.yml b/.cirrus.yml
index 5f0cc4dbc..38427e436 100644
--- a/.cirrus.yml
+++ b/.cirrus.yml
@@ -53,7 +53,7 @@ macos_arm64_task:
       - cat Cargo.lock
   install_script:
     - brew install python3
-    - python3 -m pip install uniffi-bindgen
+    - python3 -m pip install uniffi-bindgen==0.22.0
   <<: *BUILD_AND_TEST
 
 linux_aarch64_task:
@@ -75,5 +75,5 @@ linux_aarch64_task:
       - echo $CIRRUS_OS
       - cat Cargo.lock
   install_script:
-    - python3 -m pip install uniffi-bindgen
+    - python3 -m pip install uniffi-bindgen==0.22.0
   <<: *BUILD_AND_TEST
\ No newline at end of file
diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index f53c87f0b..9c1966265 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -137,7 +137,7 @@ jobs:
         if: ${{ !contains(matrix.python-version, 'pypy') }}
         run: pip install cffi
       - name: Install python packages
-        run: pip install virtualenv ziglang~=0.10.0 twine uniffi-bindgen
+        run: pip install virtualenv ziglang~=0.10.0 twine uniffi-bindgen==0.22.0
       - uses: dtolnay/rust-toolchain@stable
         id: rustup
         with:
diff --git a/Cargo.lock b/Cargo.lock
index 12a412bbc..d5baaa045 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -302,9 +302,9 @@ dependencies = [
 
 [[package]]
 name = "cc"
-version = "1.0.77"
+version = "1.0.78"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e9f73505338f7d905b19d18738976aae232eb46b8efc15554ffc56deb5d9ebe4"
+checksum = "a20104e2335ce8a659d6dd92a51a767a0c062599c73b343fd152cb401e828c3d"
 
 [[package]]
 name = "cfb"
@@ -1294,9 +1294,9 @@ checksum = "db6d7e329c562c5dfab7a46a2afabc8b987ab9a4834c9d1ca04dc54c1546cef8"
 
 [[package]]
 name = "linux-raw-sys"
-version = "0.1.3"
+version = "0.1.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8f9f08d8963a6c613f4b1a78f4f4a4dbfadf8e6545b2d72861731e4858b8b47f"
+checksum = "f051f77a7c8e6957c0696eac88f26b0117e54f52d3fc682ab19397a8812846a4"
 
 [[package]]
 name = "lock_api"
@@ -1861,9 +1861,9 @@ dependencies = [
 
 [[package]]
 name = "portable-atomic"
-version = "0.3.16"
+version = "0.3.18"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ac662b3a6490de378b0ee15cf2dfff7127aebfe0b19acc65e7fbca3d299c3788"
+checksum = "81bdd679d533107e090c2704a35982fc06302e30898e63ffa26a81155c012e92"
 
 [[package]]
 name = "ppv-lite86"
@@ -2280,18 +2280,18 @@ dependencies = [
 
 [[package]]
 name = "serde"
-version = "1.0.150"
+version = "1.0.151"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "e326c9ec8042f1b5da33252c8a37e9ffbd2c9bef0155215b6e6c80c790e05f91"
+checksum = "97fed41fc1a24994d044e6db6935e69511a1153b52c15eb42493b26fa87feba0"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.150"
+version = "1.0.151"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "42a3df25b0713732468deadad63ab9da1f1fd75a48a15024b50363f128db627e"
+checksum = "255abe9a125a985c05190d687b320c12f9b1f0b99445e608c21ba0782c719ad8"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -2623,9 +2623,9 @@ checksum = "cda74da7e1a664f795bb1f8a87ec406fb89a02522cf6e50620d016add6dbbf5c"
 
 [[package]]
 name = "toml"
-version = "0.5.9"
+version = "0.5.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8d82e1a7758622a465f8cee077614c73484dac5b836c02ff6a40d5d1010324d7"
+checksum = "1333c76748e868a4d9d1017b5ab53171dfd095f70c712fdb4653a406547f598f"
 dependencies = [
  "serde",
 ]
diff --git a/test-crates/uniffi-mixed/Cargo.lock b/test-crates/uniffi-mixed/Cargo.lock
index 7f2aed843..16472a258 100644
--- a/test-crates/uniffi-mixed/Cargo.lock
+++ b/test-crates/uniffi-mixed/Cargo.lock
@@ -53,23 +53,6 @@ dependencies = [
  "toml",
 ]
 
-[[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 = "bincode"
 version = "1.3.3"
@@ -79,17 +62,11 @@ dependencies = [
  "serde",
 ]
 
-[[package]]
-name = "bitflags"
-version = "1.3.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
-
 [[package]]
 name = "bytes"
-version = "1.2.1"
+version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ec8a7b6a70fde80372154c65702f00a0f56f3e1c36abbc6c440484be248856db"
+checksum = "dfb24e866b15a1af2a1b663f10c6b6b8f397a84aadb828f12e5b289ec23a3a3c"
 
 [[package]]
 name = "camino"
@@ -111,15 +88,16 @@ dependencies = [
 
 [[package]]
 name = "cargo_metadata"
-version = "0.14.2"
+version = "0.15.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4acbb09d9ee8e23699b9634375c72795d095bf268439da88562cf9b501f181fa"
+checksum = "982a0cf6a99c350d7246035613882e376d58cebe571785abc5da4f648d53ac0a"
 dependencies = [
  "camino",
  "cargo-platform",
  "semver",
  "serde",
  "serde_json",
+ "thiserror",
 ]
 
 [[package]]
@@ -128,105 +106,41 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
-[[package]]
-name = "clap"
-version = "3.2.23"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "71655c45cb9845d3270c9d6df84ebe72b4dad3c2ba3f7023ad47c144e4e473a5"
-dependencies = [
- "atty",
- "bitflags",
- "clap_derive",
- "clap_lex",
- "indexmap",
- "once_cell",
- "strsim",
- "termcolor",
- "textwrap",
-]
-
-[[package]]
-name = "clap_derive"
-version = "3.2.18"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ea0c8bce528c4be4da13ea6fead8965e95b6073585a2f05204bd8f4119f82a65"
-dependencies = [
- "heck",
- "proc-macro-error",
- "proc-macro2",
- "quote",
- "syn",
-]
-
-[[package]]
-name = "clap_lex"
-version = "0.2.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2850f2f5a82cbf437dd5af4d49848fbdfc27c157c3d010345776f952765261c5"
-dependencies = [
- "os_str_bytes",
-]
-
 [[package]]
 name = "fs-err"
 version = "2.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0845fa252299212f0389d64ba26f34fa32cfe41588355f21ed507c59a0f64541"
 
+[[package]]
+name = "glob"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9b919933a397b79c37e33b77bb2aa3dc8eb6e165ad809e58ff75bc7db2e34574"
+
 [[package]]
 name = "goblin"
-version = "0.5.4"
+version = "0.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a7666983ed0dd8d21a6f6576ee00053ca0926fb281a5522577a4dbd0f1b54143"
+checksum = "572564d6cba7d09775202c8e7eebc4d534d5ae36578ab402fb21e182a0ac9505"
 dependencies = [
  "log",
  "plain",
  "scroll",
 ]
 
-[[package]]
-name = "hashbrown"
-version = "0.12.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8a9ee70c43aaf417c914396645a0fa852624801b24ebb7ae78fe8272889ac888"
-
 [[package]]
 name = "heck"
 version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2540771e65fc8cb83cd6e8a237f70c319bd5c29f78ed1084ba5d50eeac86f7f9"
 
-[[package]]
-name = "hermit-abi"
-version = "0.1.19"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "62b467343b94ba476dcb2500d242dadbb39557df889310ac77c5d99100aaac33"
-dependencies = [
- "libc",
-]
-
-[[package]]
-name = "indexmap"
-version = "1.9.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "10a35a97730320ffe8e2d410b5d3b69279b98d2c14bdb8b70ea89ecf7888d41e"
-dependencies = [
- "autocfg",
- "hashbrown",
-]
-
 [[package]]
 name = "itoa"
 version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4217ad341ebadf8d8e724e264f13e593e0648f5b3e94b3896a5df283be015ecc"
 
-[[package]]
-name = "libc"
-version = "0.2.137"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fc7fcc620a3bff7cdd7a365be3376c97191aeaccc2a603e600951e452615bf89"
-
 [[package]]
 name = "log"
 version = "0.4.17"
@@ -280,17 +194,11 @@ version = "1.16.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "86f0b0d4bf799edbc74508c1e8bf170ff5f41238e5f8225603ca7caaae2b7860"
 
-[[package]]
-name = "os_str_bytes"
-version = "6.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7b5bf27447411e9ee3ff51186bf7a08e16c341efdde93f4d823e8844429bed7e"
-
 [[package]]
 name = "paste"
-version = "1.0.9"
+version = "1.0.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b1de2e551fb905ac83f73f7aedf2f0cb4a0da7e35efa24a202a936269f1f18e1"
+checksum = "cf1c2c742266c2f1041c914ba65355a83ae8747b05f208319784083583494b4b"
 
 [[package]]
 name = "plain"
@@ -298,30 +206,6 @@ version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b4596b6d070b27117e987119b4dac604f3c58cfb0b191112e24771b2faeac1a6"
 
-[[package]]
-name = "proc-macro-error"
-version = "1.0.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "da25490ff9892aab3fcf7c36f08cfb902dd3e71ca0f9f9517bea02a73a5ce38c"
-dependencies = [
- "proc-macro-error-attr",
- "proc-macro2",
- "quote",
- "syn",
- "version_check",
-]
-
-[[package]]
-name = "proc-macro-error-attr"
-version = "1.0.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a1be40180e52ecc98ad80b184934baf3d0d29f979574e439af5a55274b35f869"
-dependencies = [
- "proc-macro2",
- "quote",
- "version_check",
-]
-
 [[package]]
 name = "proc-macro2"
 version = "1.0.47"
@@ -377,18 +261,18 @@ dependencies = [
 
 [[package]]
 name = "serde"
-version = "1.0.147"
+version = "1.0.151"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d193d69bae983fc11a79df82342761dfbf28a99fc8d203dca4c3c1b590948965"
+checksum = "97fed41fc1a24994d044e6db6935e69511a1153b52c15eb42493b26fa87feba0"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.147"
+version = "1.0.151"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4f1d362ca8fc9c3e3a7484440752472d68a6caa98f1ab81d99b5dfe517cec852"
+checksum = "255abe9a125a985c05190d687b320c12f9b1f0b99445e608c21ba0782c719ad8"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -397,9 +281,9 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.87"
+version = "1.0.89"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6ce777b7b150d76b9cf60d28b55f5847135a003f7d7350c6be7a773508ce7d45"
+checksum = "020ff22c755c2ed3f8cf162dbb41a7268d934702f3ed3631656ea597e08fc3db"
 dependencies = [
  "itoa",
  "ryu",
@@ -407,22 +291,22 @@ dependencies = [
 ]
 
 [[package]]
-name = "static_assertions"
-version = "1.1.0"
+name = "siphasher"
+version = "0.3.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a2eb9349b6444b326872e140eb1cf5e7c522154d69e7a0ffb0fb81c06b37543f"
+checksum = "7bd3e3206899af3f8b12af284fafc038cc1dc2b41d1b89dd17297221c5d225de"
 
 [[package]]
-name = "strsim"
-version = "0.10.0"
+name = "static_assertions"
+version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "73473c0e59e6d5812c5dfe2a064a6444949f089e20eec9a2e5506596494e4623"
+checksum = "a2eb9349b6444b326872e140eb1cf5e7c522154d69e7a0ffb0fb81c06b37543f"
 
 [[package]]
 name = "syn"
-version = "1.0.103"
+version = "1.0.105"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a864042229133ada95abf3b54fdc62ef5ccabe9515b64717bcb9a1919e59445d"
+checksum = "60b9b43d45702de4c839cb9b51d9f529c5dd26a4aff255b42b1ebc03e88ee908"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -430,25 +314,30 @@ dependencies = [
 ]
 
 [[package]]
-name = "termcolor"
-version = "1.1.3"
+name = "thiserror"
+version = "1.0.37"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bab24d30b911b2376f3a13cc2cd443142f0c81dda04c118693e35b3835757755"
+checksum = "10deb33631e3c9018b9baf9dcbbc4f737320d2b576bac10f6aefa048fa407e3e"
 dependencies = [
- "winapi-util",
+ "thiserror-impl",
 ]
 
 [[package]]
-name = "textwrap"
-version = "0.16.0"
+name = "thiserror-impl"
+version = "1.0.37"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "222a222a5bfe1bba4a77b45ec488a741b3cb8872e5e499451fd7d0129c9c7c3d"
+checksum = "982d17546b47146b28f7c22e3d08465f6b8903d0ea13c1660d9d84a6e7adcdbb"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
 
 [[package]]
 name = "toml"
-version = "0.5.9"
+version = "0.5.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8d82e1a7758622a465f8cee077614c73484dac5b836c02ff6a40d5d1010324d7"
+checksum = "1333c76748e868a4d9d1017b5ab53171dfd095f70c712fdb4653a406547f598f"
 dependencies = [
  "serde",
 ]
@@ -470,14 +359,13 @@ checksum = "6ceab39d59e4c9499d4e5a8ee0e2735b891bb7308ac83dfb4e80cad195c9f6f3"
 
 [[package]]
 name = "uniffi"
-version = "0.21.0"
+version = "0.22.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f54af5ada67d1173457a99a7bb44a7917f63e7466764cb4714865c7a6678b830"
+checksum = "8e7057bad60ea5f6e2c2df43dbc8143880d19daca2d9bb0ef81131b37ef42cc9"
 dependencies = [
  "anyhow",
  "bytes",
  "camino",
- "cargo_metadata",
  "log",
  "once_cell",
  "paste",
@@ -496,16 +384,16 @@ dependencies = [
 
 [[package]]
 name = "uniffi_bindgen"
-version = "0.21.0"
+version = "0.22.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "12cc4af3c0180c7e86c4a3acf2b6587af04ba2567b1e948993df10f421796621"
+checksum = "19d84dea610e893f4043354c71e4361386475365e6e2834aded4c8cebf940311"
 dependencies = [
  "anyhow",
  "askama",
  "bincode",
  "camino",
- "clap",
  "fs-err",
+ "glob",
  "goblin",
  "heck",
  "once_cell",
@@ -514,25 +402,36 @@ dependencies = [
  "serde_json",
  "toml",
  "uniffi_meta",
+ "uniffi_testing",
  "weedle2",
 ]
 
 [[package]]
 name = "uniffi_build"
-version = "0.21.0"
+version = "0.22.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "510287c368a9386eb731ebe824a6fc6c82a105e20d020af1aa20519c1c1561db"
+checksum = "6db116cd55ae857fd40d5780d47c76d3f6aa68c242458fb57bc24cb130a3e920"
 dependencies = [
  "anyhow",
  "camino",
  "uniffi_bindgen",
 ]
 
+[[package]]
+name = "uniffi_checksum_derive"
+version = "0.22.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f55105cc7e1ac83ca1eb29587e3b7f65737f9142dc65d54b63502c2589c9d6a5"
+dependencies = [
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "uniffi_macros"
-version = "0.21.0"
+version = "0.22.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5c8604503caa2cbcf271578dc51ca236d40e3b22e1514ffa2e638e2c39f6ad10"
+checksum = "ed72d962296f794d962888484c8a2129174976fb2d7c566eca52892d373e0234"
 dependencies = [
  "bincode",
  "camino",
@@ -549,11 +448,28 @@ dependencies = [
 
 [[package]]
 name = "uniffi_meta"
-version = "0.21.0"
+version = "0.22.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cd9417cc653937681436b93838d8c5f97a5b8c58697813982ee8810bd1dc3b57"
+checksum = "9f819a2d6f98e2e9758604f3f541c8200166868525d0329e232ce188f19eeeb4"
 dependencies = [
  "serde",
+ "siphasher",
+ "uniffi_checksum_derive",
+]
+
+[[package]]
+name = "uniffi_testing"
+version = "0.22.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0cd68c90ec2ab35abc868eae85eedd92b7cede34d38a57e356fce96b8f99d4ef"
+dependencies = [
+ "anyhow",
+ "camino",
+ "cargo_metadata",
+ "fs-err",
+ "once_cell",
+ "serde",
+ "serde_json",
 ]
 
 [[package]]
@@ -570,34 +486,3 @@ checksum = "2e79c5206e1f43a2306fd64bdb95025ee4228960f2e6c5a8b173f3caaf807741"
 dependencies = [
  "nom",
 ]
-
-[[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"
diff --git a/test-crates/uniffi-mixed/Cargo.toml b/test-crates/uniffi-mixed/Cargo.toml
index 92e9f6ee7..0b8e8af5d 100644
--- a/test-crates/uniffi-mixed/Cargo.toml
+++ b/test-crates/uniffi-mixed/Cargo.toml
@@ -10,8 +10,8 @@ name = "uniffi_mixed"
 crate-type = ["cdylib"]
 
 [dependencies]
-uniffi = "0.21.0"
-uniffi_macros = "0.21.0"
+uniffi = "0.22.0"
+uniffi_macros = "0.22.0"
 
 [build-dependencies]
-uniffi_build = { version = "0.21.0", features = ["builtin-bindgen"] }
+uniffi_build = { version = "0.22.0", features = ["builtin-bindgen"] }
diff --git a/test-crates/uniffi-pure/Cargo.lock b/test-crates/uniffi-pure/Cargo.lock
index d83e2ff41..4720fb4af 100644
--- a/test-crates/uniffi-pure/Cargo.lock
+++ b/test-crates/uniffi-pure/Cargo.lock
@@ -53,23 +53,6 @@ dependencies = [
  "toml",
 ]
 
-[[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 = "bincode"
 version = "1.3.3"
@@ -79,17 +62,11 @@ dependencies = [
  "serde",
 ]
 
-[[package]]
-name = "bitflags"
-version = "1.3.2"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bef38d45163c2f1dde094a7dfd33ccf595c92905c8f8f4fdc18d06fb1037718a"
-
 [[package]]
 name = "bytes"
-version = "1.2.1"
+version = "1.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ec8a7b6a70fde80372154c65702f00a0f56f3e1c36abbc6c440484be248856db"
+checksum = "dfb24e866b15a1af2a1b663f10c6b6b8f397a84aadb828f12e5b289ec23a3a3c"
 
 [[package]]
 name = "camino"
@@ -111,15 +88,16 @@ dependencies = [
 
 [[package]]
 name = "cargo_metadata"
-version = "0.14.2"
+version = "0.15.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4acbb09d9ee8e23699b9634375c72795d095bf268439da88562cf9b501f181fa"
+checksum = "982a0cf6a99c350d7246035613882e376d58cebe571785abc5da4f648d53ac0a"
 dependencies = [
  "camino",
  "cargo-platform",
  "semver",
  "serde",
  "serde_json",
+ "thiserror",
 ]
 
 [[package]]
@@ -128,105 +106,41 @@ version = "1.0.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
 
-[[package]]
-name = "clap"
-version = "3.2.23"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "71655c45cb9845d3270c9d6df84ebe72b4dad3c2ba3f7023ad47c144e4e473a5"
-dependencies = [
- "atty",
- "bitflags",
- "clap_derive",
- "clap_lex",
- "indexmap",
- "once_cell",
- "strsim",
- "termcolor",
- "textwrap",
-]
-
-[[package]]
-name = "clap_derive"
-version = "3.2.18"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "ea0c8bce528c4be4da13ea6fead8965e95b6073585a2f05204bd8f4119f82a65"
-dependencies = [
- "heck",
- "proc-macro-error",
- "proc-macro2",
- "quote",
- "syn",
-]
-
-[[package]]
-name = "clap_lex"
-version = "0.2.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "2850f2f5a82cbf437dd5af4d49848fbdfc27c157c3d010345776f952765261c5"
-dependencies = [
- "os_str_bytes",
-]
-
 [[package]]
 name = "fs-err"
 version = "2.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0845fa252299212f0389d64ba26f34fa32cfe41588355f21ed507c59a0f64541"
 
+[[package]]
+name = "glob"
+version = "0.3.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9b919933a397b79c37e33b77bb2aa3dc8eb6e165ad809e58ff75bc7db2e34574"
+
 [[package]]
 name = "goblin"
-version = "0.5.4"
+version = "0.6.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a7666983ed0dd8d21a6f6576ee00053ca0926fb281a5522577a4dbd0f1b54143"
+checksum = "572564d6cba7d09775202c8e7eebc4d534d5ae36578ab402fb21e182a0ac9505"
 dependencies = [
  "log",
  "plain",
  "scroll",
 ]
 
-[[package]]
-name = "hashbrown"
-version = "0.12.3"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8a9ee70c43aaf417c914396645a0fa852624801b24ebb7ae78fe8272889ac888"
-
 [[package]]
 name = "heck"
 version = "0.4.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2540771e65fc8cb83cd6e8a237f70c319bd5c29f78ed1084ba5d50eeac86f7f9"
 
-[[package]]
-name = "hermit-abi"
-version = "0.1.19"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "62b467343b94ba476dcb2500d242dadbb39557df889310ac77c5d99100aaac33"
-dependencies = [
- "libc",
-]
-
-[[package]]
-name = "indexmap"
-version = "1.9.1"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "10a35a97730320ffe8e2d410b5d3b69279b98d2c14bdb8b70ea89ecf7888d41e"
-dependencies = [
- "autocfg",
- "hashbrown",
-]
-
 [[package]]
 name = "itoa"
 version = "1.0.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4217ad341ebadf8d8e724e264f13e593e0648f5b3e94b3896a5df283be015ecc"
 
-[[package]]
-name = "libc"
-version = "0.2.137"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "fc7fcc620a3bff7cdd7a365be3376c97191aeaccc2a603e600951e452615bf89"
-
 [[package]]
 name = "log"
 version = "0.4.17"
@@ -280,17 +194,11 @@ version = "1.16.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "86f0b0d4bf799edbc74508c1e8bf170ff5f41238e5f8225603ca7caaae2b7860"
 
-[[package]]
-name = "os_str_bytes"
-version = "6.4.0"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "7b5bf27447411e9ee3ff51186bf7a08e16c341efdde93f4d823e8844429bed7e"
-
 [[package]]
 name = "paste"
-version = "1.0.9"
+version = "1.0.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "b1de2e551fb905ac83f73f7aedf2f0cb4a0da7e35efa24a202a936269f1f18e1"
+checksum = "cf1c2c742266c2f1041c914ba65355a83ae8747b05f208319784083583494b4b"
 
 [[package]]
 name = "plain"
@@ -298,30 +206,6 @@ version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b4596b6d070b27117e987119b4dac604f3c58cfb0b191112e24771b2faeac1a6"
 
-[[package]]
-name = "proc-macro-error"
-version = "1.0.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "da25490ff9892aab3fcf7c36f08cfb902dd3e71ca0f9f9517bea02a73a5ce38c"
-dependencies = [
- "proc-macro-error-attr",
- "proc-macro2",
- "quote",
- "syn",
- "version_check",
-]
-
-[[package]]
-name = "proc-macro-error-attr"
-version = "1.0.4"
-source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a1be40180e52ecc98ad80b184934baf3d0d29f979574e439af5a55274b35f869"
-dependencies = [
- "proc-macro2",
- "quote",
- "version_check",
-]
-
 [[package]]
 name = "proc-macro2"
 version = "1.0.47"
@@ -377,18 +261,18 @@ dependencies = [
 
 [[package]]
 name = "serde"
-version = "1.0.147"
+version = "1.0.151"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "d193d69bae983fc11a79df82342761dfbf28a99fc8d203dca4c3c1b590948965"
+checksum = "97fed41fc1a24994d044e6db6935e69511a1153b52c15eb42493b26fa87feba0"
 dependencies = [
  "serde_derive",
 ]
 
 [[package]]
 name = "serde_derive"
-version = "1.0.147"
+version = "1.0.151"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "4f1d362ca8fc9c3e3a7484440752472d68a6caa98f1ab81d99b5dfe517cec852"
+checksum = "255abe9a125a985c05190d687b320c12f9b1f0b99445e608c21ba0782c719ad8"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -397,9 +281,9 @@ dependencies = [
 
 [[package]]
 name = "serde_json"
-version = "1.0.87"
+version = "1.0.89"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "6ce777b7b150d76b9cf60d28b55f5847135a003f7d7350c6be7a773508ce7d45"
+checksum = "020ff22c755c2ed3f8cf162dbb41a7268d934702f3ed3631656ea597e08fc3db"
 dependencies = [
  "itoa",
  "ryu",
@@ -407,22 +291,22 @@ dependencies = [
 ]
 
 [[package]]
-name = "static_assertions"
-version = "1.1.0"
+name = "siphasher"
+version = "0.3.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a2eb9349b6444b326872e140eb1cf5e7c522154d69e7a0ffb0fb81c06b37543f"
+checksum = "7bd3e3206899af3f8b12af284fafc038cc1dc2b41d1b89dd17297221c5d225de"
 
 [[package]]
-name = "strsim"
-version = "0.10.0"
+name = "static_assertions"
+version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "73473c0e59e6d5812c5dfe2a064a6444949f089e20eec9a2e5506596494e4623"
+checksum = "a2eb9349b6444b326872e140eb1cf5e7c522154d69e7a0ffb0fb81c06b37543f"
 
 [[package]]
 name = "syn"
-version = "1.0.103"
+version = "1.0.105"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "a864042229133ada95abf3b54fdc62ef5ccabe9515b64717bcb9a1919e59445d"
+checksum = "60b9b43d45702de4c839cb9b51d9f529c5dd26a4aff255b42b1ebc03e88ee908"
 dependencies = [
  "proc-macro2",
  "quote",
@@ -430,25 +314,30 @@ dependencies = [
 ]
 
 [[package]]
-name = "termcolor"
-version = "1.1.3"
+name = "thiserror"
+version = "1.0.37"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "bab24d30b911b2376f3a13cc2cd443142f0c81dda04c118693e35b3835757755"
+checksum = "10deb33631e3c9018b9baf9dcbbc4f737320d2b576bac10f6aefa048fa407e3e"
 dependencies = [
- "winapi-util",
+ "thiserror-impl",
 ]
 
 [[package]]
-name = "textwrap"
-version = "0.16.0"
+name = "thiserror-impl"
+version = "1.0.37"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "222a222a5bfe1bba4a77b45ec488a741b3cb8872e5e499451fd7d0129c9c7c3d"
+checksum = "982d17546b47146b28f7c22e3d08465f6b8903d0ea13c1660d9d84a6e7adcdbb"
+dependencies = [
+ "proc-macro2",
+ "quote",
+ "syn",
+]
 
 [[package]]
 name = "toml"
-version = "0.5.9"
+version = "0.5.10"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "8d82e1a7758622a465f8cee077614c73484dac5b836c02ff6a40d5d1010324d7"
+checksum = "1333c76748e868a4d9d1017b5ab53171dfd095f70c712fdb4653a406547f598f"
 dependencies = [
  "serde",
 ]
@@ -470,14 +359,13 @@ checksum = "6ceab39d59e4c9499d4e5a8ee0e2735b891bb7308ac83dfb4e80cad195c9f6f3"
 
 [[package]]
 name = "uniffi"
-version = "0.21.0"
+version = "0.22.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "f54af5ada67d1173457a99a7bb44a7917f63e7466764cb4714865c7a6678b830"
+checksum = "8e7057bad60ea5f6e2c2df43dbc8143880d19daca2d9bb0ef81131b37ef42cc9"
 dependencies = [
  "anyhow",
  "bytes",
  "camino",
- "cargo_metadata",
  "log",
  "once_cell",
  "paste",
@@ -496,16 +384,16 @@ dependencies = [
 
 [[package]]
 name = "uniffi_bindgen"
-version = "0.21.0"
+version = "0.22.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "12cc4af3c0180c7e86c4a3acf2b6587af04ba2567b1e948993df10f421796621"
+checksum = "19d84dea610e893f4043354c71e4361386475365e6e2834aded4c8cebf940311"
 dependencies = [
  "anyhow",
  "askama",
  "bincode",
  "camino",
- "clap",
  "fs-err",
+ "glob",
  "goblin",
  "heck",
  "once_cell",
@@ -514,25 +402,36 @@ dependencies = [
  "serde_json",
  "toml",
  "uniffi_meta",
+ "uniffi_testing",
  "weedle2",
 ]
 
 [[package]]
 name = "uniffi_build"
-version = "0.21.0"
+version = "0.22.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "510287c368a9386eb731ebe824a6fc6c82a105e20d020af1aa20519c1c1561db"
+checksum = "6db116cd55ae857fd40d5780d47c76d3f6aa68c242458fb57bc24cb130a3e920"
 dependencies = [
  "anyhow",
  "camino",
  "uniffi_bindgen",
 ]
 
+[[package]]
+name = "uniffi_checksum_derive"
+version = "0.22.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f55105cc7e1ac83ca1eb29587e3b7f65737f9142dc65d54b63502c2589c9d6a5"
+dependencies = [
+ "quote",
+ "syn",
+]
+
 [[package]]
 name = "uniffi_macros"
-version = "0.21.0"
+version = "0.22.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5c8604503caa2cbcf271578dc51ca236d40e3b22e1514ffa2e638e2c39f6ad10"
+checksum = "ed72d962296f794d962888484c8a2129174976fb2d7c566eca52892d373e0234"
 dependencies = [
  "bincode",
  "camino",
@@ -549,11 +448,28 @@ dependencies = [
 
 [[package]]
 name = "uniffi_meta"
-version = "0.21.0"
+version = "0.22.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "cd9417cc653937681436b93838d8c5f97a5b8c58697813982ee8810bd1dc3b57"
+checksum = "9f819a2d6f98e2e9758604f3f541c8200166868525d0329e232ce188f19eeeb4"
 dependencies = [
  "serde",
+ "siphasher",
+ "uniffi_checksum_derive",
+]
+
+[[package]]
+name = "uniffi_testing"
+version = "0.22.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "0cd68c90ec2ab35abc868eae85eedd92b7cede34d38a57e356fce96b8f99d4ef"
+dependencies = [
+ "anyhow",
+ "camino",
+ "cargo_metadata",
+ "fs-err",
+ "once_cell",
+ "serde",
+ "serde_json",
 ]
 
 [[package]]
@@ -570,34 +486,3 @@ checksum = "2e79c5206e1f43a2306fd64bdb95025ee4228960f2e6c5a8b173f3caaf807741"
 dependencies = [
  "nom",
 ]
-
-[[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"
diff --git a/test-crates/uniffi-pure/Cargo.toml b/test-crates/uniffi-pure/Cargo.toml
index 2f63d5597..1f5ea4340 100644
--- a/test-crates/uniffi-pure/Cargo.toml
+++ b/test-crates/uniffi-pure/Cargo.toml
@@ -10,8 +10,8 @@ name = "uniffi_pure"
 crate-type = ["cdylib"]
 
 [dependencies]
-uniffi = "0.21.0"
-uniffi_macros = "0.21.0"
+uniffi = "0.22.0"
+uniffi_macros = "0.22.0"
 
 [build-dependencies]
-uniffi_build = { version = "0.21.0", features = ["builtin-bindgen"] }
\ No newline at end of file
+uniffi_build = { version = "0.22.0", features = ["builtin-bindgen"] }
\ No newline at end of file