From 2a22b2830192e3aaefdc5e42ad801a9d5ecb3c83 Mon Sep 17 00:00:00 2001
From: Ziyang Hu <hu.ziyang@cantab.net>
Date: Sat, 19 Nov 2022 16:03:00 +0800
Subject: [PATCH] swift lib

---
 cozo-lib-swift/.gitignore    |  3 +++
 cozo-lib-swift/Cargo.toml    | 19 +++++++++++++++++++
 cozo-lib-swift/build-rust.sh | 35 +++++++++++++++++++++++++++++++++++
 cozo-lib-swift/build.rs      | 13 +++++++++++++
 cozo-lib-swift/src/lib.rs    | 10 ++++++++++
 5 files changed, 80 insertions(+)
 create mode 100644 cozo-lib-swift/.gitignore
 create mode 100644 cozo-lib-swift/Cargo.toml
 create mode 100755 cozo-lib-swift/build-rust.sh
 create mode 100644 cozo-lib-swift/build.rs
 create mode 100644 cozo-lib-swift/src/lib.rs

diff --git a/cozo-lib-swift/.gitignore b/cozo-lib-swift/.gitignore
new file mode 100644
index 00000000..2314bc5a
--- /dev/null
+++ b/cozo-lib-swift/.gitignore
@@ -0,0 +1,3 @@
+generated
+CozoSwiftBridge
+.idea
\ No newline at end of file
diff --git a/cozo-lib-swift/Cargo.toml b/cozo-lib-swift/Cargo.toml
new file mode 100644
index 00000000..7f1c66ce
--- /dev/null
+++ b/cozo-lib-swift/Cargo.toml
@@ -0,0 +1,19 @@
+[package]
+name = "cozo-swift"
+version = "0.1.0"
+edition = "2021"
+
+[lib]
+crate-type = ["staticlib"]
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[features]
+storage-rocksdb = ["cozo/storage-rocksdb"]
+
+[build-dependencies]
+swift-bridge-build = "0.1.41"
+
+[dependencies]
+swift-bridge = "0.1.41"
+cozo = { version = "0.1.7", path = "../cozo-core", default-features = false, features = ["compact"] }
diff --git a/cozo-lib-swift/build-rust.sh b/cozo-lib-swift/build-rust.sh
new file mode 100755
index 00000000..ef0b3ab5
--- /dev/null
+++ b/cozo-lib-swift/build-rust.sh
@@ -0,0 +1,35 @@
+#!/usr/bin/env bash
+set -e
+
+THISDIR=$(dirname $0)
+cd $THISDIR
+
+export SWIFT_BRIDGE_OUT_DIR="$(pwd)/generated"
+# Build the project for the desired platforms:
+cargo build -p cozo-swift --target x86_64-apple-darwin --release
+cargo build -p cozo-swift --target aarch64-apple-darwin --release
+mkdir -p ../target/universal-macos/release
+
+lipo \
+    ../target/aarch64-apple-darwin/release/libcozo_swift.a \
+    ../target/x86_64-apple-darwin/release/libcozo_swift.a -create -output \
+    ../target/universal-macos/release/libcozo_swift.a
+
+cargo build -p cozo-swift --target aarch64-apple-ios --release
+
+cargo build -p cozo-swift --target x86_64-apple-ios --release
+cargo build -p cozo-swift --target aarch64-apple-ios-sim --release
+mkdir -p ../target/universal-ios/release
+
+lipo \
+    ../target/aarch64-apple-ios-sim/release/libcozo_swift.a \
+    ../target/x86_64-apple-ios/release/libcozo_swift.a -create -output \
+    ../target/universal-ios/release/libcozo_swift.a
+
+swift-bridge-cli create-package \
+    --bridges-dir ./generated \
+    --out-dir CozoSwiftBridge \
+    --ios ../target/aarch64-apple-ios/release/libcozo_swift.a \
+    --simulator ../target/universal-ios/release/libcozo_swift.a \
+    --macos ../target/universal-macos/release/libcozo_swift.a \
+    --name CozoSwiftBridge
\ No newline at end of file
diff --git a/cozo-lib-swift/build.rs b/cozo-lib-swift/build.rs
new file mode 100644
index 00000000..56ecb926
--- /dev/null
+++ b/cozo-lib-swift/build.rs
@@ -0,0 +1,13 @@
+use std::path::PathBuf;
+
+fn main() {
+    let out_dir = PathBuf::from("./generated");
+
+    let bridges = vec!["src/lib.rs"];
+    for path in &bridges {
+        println!("cargo:rerun-if-changed={}", path);
+    }
+
+    swift_bridge_build::parse_bridges(bridges)
+        .write_all_concatenated(out_dir, env!("CARGO_PKG_NAME"));
+}
\ No newline at end of file
diff --git a/cozo-lib-swift/src/lib.rs b/cozo-lib-swift/src/lib.rs
new file mode 100644
index 00000000..0ad74fcb
--- /dev/null
+++ b/cozo-lib-swift/src/lib.rs
@@ -0,0 +1,10 @@
+#[swift_bridge::bridge]
+mod ffi {
+    extern "Rust" {
+        fn hello_rust(name: &str) -> String;
+    }
+}
+
+fn hello_rust(name: &str) -> String {
+    String::from(format!("Hello {} from Rust!", name))
+}
\ No newline at end of file