Compile wasm

Author: mugikhan

.github/workflows/wasm.yml

@@ -0,0 +1,23 @@
+on:
+  push:
+name: "wasm"
+jobs:
+  build:
+    name: Building WASM
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+        with:
+          submodules: true
+
+      - name: Install Rust Nightly
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          toolchain: nightly-2024-05-18
+          components: rust-src
+
+      - name: Build binaries
+        run: |
+          rustup target add wasm32-unknown-unknown
+          cargo build -p powersync_loadable --target wasm32-unknown-unknown --profile wasm
+          mv "target/wasm32-unknown-unknown/wasm/powersync.wasm" "powersync.wasm"

Cargo.lock

@@ -22,7 +22,7 @@ inherits = "release"
 # Enabling LTO in WASM build gives:
 # warning: Linking globals named '__rust_alloc_error_handler': symbol multiply defined!
 # error: failed to load bitcode of module "sgnxivc9sns8d6t":
-lto = false
+lto = "thin"
 
 [workspace.package]
 version = "0.1.7"

Cargo.toml

@@ -24,7 +24,8 @@ serde = { version = "1.0", default-features = false, features = ["alloc", "deriv
 version = "1.4.1"
 default-features = false
 features = [
-    "v4"
+    "v4",
+    "js",
 ]
 
 

crates/core/Cargo.toml

@@ -20,6 +20,7 @@ use sqlite_nostd::SQLite3Allocator;
 static ALLOCATOR: SQLite3Allocator = SQLite3Allocator {};
 
 // Custom Panic handler for WASM and other no_std builds
+#[cfg(not(target_family = "wasm"))]
 #[cfg(not(test))]
 #[panic_handler]
 fn panic(_info: &core::panic::PanicInfo) -> ! {