diff options
Diffstat (limited to 'third_party/rust/uniffi_build')
| -rw-r--r-- | third_party/rust/uniffi_build/.cargo-checksum.json | 1 | ||||
| -rw-r--r-- | third_party/rust/uniffi_build/Cargo.toml | 39 | ||||
| -rw-r--r-- | third_party/rust/uniffi_build/src/lib.rs | 52 |
3 files changed, 92 insertions, 0 deletions
diff --git a/third_party/rust/uniffi_build/.cargo-checksum.json b/third_party/rust/uniffi_build/.cargo-checksum.json new file mode 100644 index 0000000000..8e585bfa95 --- /dev/null +++ b/third_party/rust/uniffi_build/.cargo-checksum.json @@ -0,0 +1 @@ +{"files":{"Cargo.toml":"a6db989e5a3d597219df0a9c94541130b7db607efd8606043cd1187971020639","src/lib.rs":"47ff3d1a18456164414af1c20cd5df129401e5257cc15552ecc39afed8970707"},"package":"001964dd3682d600084b3aaf75acf9c3426699bc27b65e96bb32d175a31c74e9"}
\ No newline at end of file diff --git a/third_party/rust/uniffi_build/Cargo.toml b/third_party/rust/uniffi_build/Cargo.toml new file mode 100644 index 0000000000..3fe7ee5cf0 --- /dev/null +++ b/third_party/rust/uniffi_build/Cargo.toml @@ -0,0 +1,39 @@ +# 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 = "2021" +name = "uniffi_build" +version = "0.25.3" +authors = ["Firefox Sync Team <sync-team@mozilla.com>"] +description = "a multi-language bindings generator for rust (build script helpers)" +homepage = "https://mozilla.github.io/uniffi-rs" +documentation = "https://mozilla.github.io/uniffi-rs" +keywords = [ + "ffi", + "bindgen", +] +license = "MPL-2.0" +repository = "https://github.com/mozilla/uniffi-rs" + +[dependencies.anyhow] +version = "1" + +[dependencies.camino] +version = "1.0.8" + +[dependencies.uniffi_bindgen] +version = "=0.25.3" +default-features = false + +[features] +builtin-bindgen = [] +default = [] diff --git a/third_party/rust/uniffi_build/src/lib.rs b/third_party/rust/uniffi_build/src/lib.rs new file mode 100644 index 0000000000..0cb865db82 --- /dev/null +++ b/third_party/rust/uniffi_build/src/lib.rs @@ -0,0 +1,52 @@ +/* This Source Code Form is subject to the terms of the Mozilla Public + * License, v. 2.0. If a copy of the MPL was not distributed with this + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ + +use anyhow::{Context, Result}; +use camino::Utf8Path; +use std::env; + +/// Generate the rust "scaffolding" required to build a uniffi component. +/// +/// Given the path to an UDL file, this function will call the `uniffi-bindgen` +/// command-line tool to generate the `pub extern "C"` functions and other supporting +/// code required to expose the defined interface from Rust. The expectation is that +/// this will be called from a crate's build script, and the resulting file will +/// be `include!()`ed into the build. +/// +/// This function will attempt to locate and parse a corresponding Cargo.toml to +/// determine the crate name which will host this UDL. +/// +/// Given an UDL file named `example.udl`, the generated scaffolding will be written +/// into a file named `example.uniffi.rs` in the `$OUT_DIR` directory. +pub fn generate_scaffolding(udl_file: impl AsRef<Utf8Path>) -> Result<()> { + let udl_file = udl_file.as_ref(); + println!("cargo:rerun-if-changed={udl_file}"); + println!("cargo:rerun-if-env-changed=UNIFFI_TESTS_DISABLE_EXTENSIONS"); + let out_dir = env::var("OUT_DIR").context("$OUT_DIR missing?!")?; + uniffi_bindgen::generate_component_scaffolding(udl_file, Some(out_dir.as_ref()), false) +} + +/// Like generate_scaffolding, but uses the specified crate_name instead of locating and parsing +/// Cargo.toml. +pub fn generate_scaffolding_for_crate( + udl_file: impl AsRef<Utf8Path>, + crate_name: &str, +) -> Result<()> { + let udl_file = udl_file.as_ref(); + + println!("cargo:rerun-if-changed={udl_file}"); + // The UNIFFI_TESTS_DISABLE_EXTENSIONS variable disables some bindings, but it is evaluated + // at *build* time, so we need to rebuild when it changes. + println!("cargo:rerun-if-env-changed=UNIFFI_TESTS_DISABLE_EXTENSIONS"); + // Why don't we just depend on uniffi-bindgen and call the public functions? + // Calling the command line helps making sure that the generated swift/Kotlin/whatever + // bindings were generated with the same version of uniffi as the Rust scaffolding code. + let out_dir = env::var("OUT_DIR").context("$OUT_DIR missing?!")?; + uniffi_bindgen::generate_component_scaffolding_for_crate( + udl_file, + crate_name, + Some(out_dir.as_ref()), + false, + ) +} |