Add proc-macro test fixture with simple function calls

Cargo.toml

@@ -36,6 +36,7 @@ members = [
   "fixtures/regressions/cdylib-crate-type-dependency/cdylib-dependency",
   "fixtures/uitests",
   "fixtures/uniffi-fixture-time",
+  "fixtures/simple-fns",
   "fixtures/swift-omit-labels",
 ]
 

fixtures/simple-fns/Cargo.toml

@@ -0,0 +1,22 @@
+[package]
+name = "uniffi-fixture-simple-fns"
+version = "0.17.0"
+authors = ["Firefox Sync Team <sync-team@mozilla.com>"]
+edition = "2018"
+license = "MPL-2.0"
+publish = false
+
+[lib]
+name = "uniffi_simple_fns"
+crate-type = ["cdylib"]
+
+[dependencies]
+uniffi = { path = "../../uniffi", features = ["builtin-bindgen"] }
+thiserror = "1.0"
+lazy_static = "1.4"
+
+[build-dependencies]
+uniffi_build = { path = "../../uniffi_build", features = ["builtin-bindgen"] }
+
+[dev-dependencies]
+uniffi_macros = { path = "../../uniffi_macros" }

fixtures/simple-fns/README.md

@@ -0,0 +1,3 @@
+# A basic test for uniffi components
+
+This test covers basic free-standing functions.

fixtures/simple-fns/build.rs

@@ -0,0 +1,7 @@
+/* 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/. */
+
+fn main() {
+    uniffi_build::generate_scaffolding("./src/simple-fns.udl").unwrap();
+}

fixtures/simple-fns/src/lib.rs

@@ -0,0 +1,25 @@
+/* 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/. */
+
+#[uniffi::export]
+fn get_string() -> String {
+    "String created by Rust".to_owned()
+}
+
+#[uniffi::export]
+fn get_int() -> i32 {
+    1289
+}
+
+#[uniffi::export]
+fn string_identity(s: String) -> String {
+    s
+}
+
+#[uniffi::export]
+fn byte_to_u32(byte: u8) -> u32 {
+    byte.into()
+}
+
+include!(concat!(env!("OUT_DIR"), "/simple-fns.uniffi.rs"));

fixtures/simple-fns/src/simple-fns.udl

@@ -0,0 +1 @@
+namespace uniffi_simple_fns {};

fixtures/simple-fns/tests/bindings/test_simple_fns.kts

@@ -0,0 +1,10 @@
+/* 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/. */
+
+import uniffi.fixture.simple_fns.*;
+
+assert(getString() == "String created by Rust")
+assert(getInt() == 1289)
+assert(stringIdentity("String created by Kotlin") == "String created by Kotlin")
+assert(byteToU32(255U) == 255U)

fixtures/simple-fns/tests/bindings/test_simple_fns.py

@@ -0,0 +1,10 @@
+# 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/.
+
+from uniffi_simple_fns import *
+
+assert get_string() == "String created by Rust"
+assert get_int() == 1289
+assert string_identity("String created by Python") == "String created by Python"
+assert byte_to_u32(255) == 255

fixtures/simple-fns/tests/bindings/test_simple_fns.swift

@@ -0,0 +1,10 @@
+/* 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/. */
+
+import uniffi_simple_fns
+
+assert(getString() == "String created by Rust")
+assert(getInt() == 1289)
+assert(stringIdentity(s: "String created by Kotlin") == "String created by Kotlin")
+assert(byteToU32(byte: 255) == 255)

fixtures/simple-fns/tests/test_generated_bindings.rs

@@ -0,0 +1,8 @@
+uniffi_macros::build_foreign_language_testcases!(
+    ["src/simple-fns.udl"],
+    [
+        "tests/bindings/test_simple_fns.kts",
+        "tests/bindings/test_simple_fns.swift",
+        "tests/bindings/test_simple_fns.py",
+    ]
+);

fixtures/simple-fns/uniffi.toml

@@ -0,0 +1,9 @@
+[bindings.kotlin]
+package_name = "uniffi.fixture.simple_fns"
+cdylib_name = "uniffi_simple_fns"
+
+[bindings.python]
+cdylib_name = "uniffi_simple_fns"
+
+[bindings.swift]
+cdylib_name = "uniffi_simple_fns"