SWC plugin (improve Vite / Nest.js support)

.gitignore

@@ -6,94 +6,21 @@ node_modules
 
 # Lock files
 package-lock.json
-# This package-lock is used as cache key and needs to be comitted
-!documentation/package-lock.json
 
 ############
 # iOS
 ############
 
 # Build generated
 dist
-ReactNativeExample/ios/build/
-ReactNativeExample/ios/DerivedData/
-
-# Various settings
-ReactNativeExample/ios/xcuserdata/
-
-# CocoaPods
-#
-# We recommend against adding the Pods directory to your .gitignore. However
-# you should judge for yourself, the pros and cons are mentioned at:
-# https://guides.cocoapods.org/using/using-cocoapods.html#should-i-check-the-pods-directory-into-source-control
-#
-ReactNativeExample/ios/Pods/
-
-############
-# Android
-############
-# Built application files
-*.apk
-*.ap_
-
-# Files for the Dalvik VM
-*.dex
-
-# Java class files
-*.class
-
-# Generated files
-ReactNativeExample/android/bin/
-ReactNativeExample/android/gen/
-ReactNativeExample/android/out/
-
-# Gradle files
-ReactNativeExample/android/.gradle/
-ReactNativeExample/android/build/
-
-# Local configuration file (sdk path, etc)
-local.properties
-
-# Proguard folder generated by Eclipse
-ReactNativeExample/android/proguard/
-
-# Log Files
-*.log
-
-# Android Studio Navigation editor temp files
-ReactNativeExample/android/.navigation/
-
-# Android Studio captures folder
-ReactNativeExample/android/captures/
 
 # Intellij
 *.iml
 
-##################
-# React-Native
-##################
 # OSX
 #
 .DS_Store
 
-# Xcode
-#
-*.pbxuser
-!default.pbxuser
-*.mode1v3
-!default.mode1v3
-*.mode2v3
-!default.mode2v3
-*.perspectivev3
-!default.perspectivev3
-xcuserdata
-*.xccheckout
-*.moved-aside
-DerivedData
-*.hmap
-*.ipa
-*.xcuserstate
-
 # Android/IJ
 #
 build/
@@ -109,15 +36,6 @@ node_modules/
 npm-debug.log
 yarn-error.log
 
-# BUCK
-buck-out/
-\.buckd/
-*.keystore
-!debug.keystore
-
-main.jsbundle.map
-index.android.bundle.map
-
 .jest_cache
 .eslintcache
 **/.docusaurus

packages/swc-plugin-obsidian/.cargo/config

@@ -0,0 +1,5 @@
+# These command aliases are not final, may change
+[alias]
+# Alias to build actual plugin binary for the specified target.
+build-wasi = "build --target wasm32-wasi"
+build-wasm32 = "build --target wasm32-unknown-unknown"

packages/swc-plugin-obsidian/Cargo.toml

@@ -0,0 +1,18 @@
+[package]
+name = "swc-plugin-obsidian"
+version = "0.1.0"
+edition = "2021"
+
+[lib]
+crate-type = ["cdylib"]
+
+[profile.release]
+lto = true
+
+[dependencies]
+serde = "1"
+swc_core = { version = "0.101.*", features = ["ecma_plugin_transform"] }
+
+# .cargo/config defines few alias to build plugin.
+# cargo build-wasi generates wasm-wasi32 binary
+# cargo build-wasm32 generates wasm32-unknown-unknown binary.

packages/swc-plugin-obsidian/package.json

@@ -0,0 +1,14 @@
+{
+    "name": "swc-plugin-obsidian",
+    "version": "0.1.0",
+    "description": "",
+    "author": "",
+    "license": "ISC",
+    "keywords": ["swc-plugin"],
+    "main": "target/wasm32-wasi/release/swc_plugin_obsidian.wasm",
+    "scripts": {
+        "prepublishOnly": "cargo build-wasi --release"
+    },
+    "files": [],
+    "preferUnplugged": true
+}

packages/swc-plugin-obsidian/src/lib.rs

@@ -0,0 +1,48 @@
+use swc_core::ecma::{
+    ast::Program,
+    transforms::testing::test_inline,
+    visit::{as_folder, FoldWith, VisitMut},
+};
+use swc_core::plugin::{plugin_transform, proxies::TransformPluginProgramMetadata};
+
+pub struct TransformVisitor;
+
+impl VisitMut for TransformVisitor {
+    // Implement necessary visit_mut_* methods for actual custom transform.
+    // A comprehensive list of possible visitor methods can be found here:
+    // https://rustdoc.swc.rs/swc_ecma_visit/trait.VisitMut.html
+}
+
+/// An example plugin function with macro support.
+/// `plugin_transform` macro interop pointers into deserialized structs, as well
+/// as returning ptr back to host.
+///
+/// It is possible to opt out from macro by writing transform fn manually
+/// if plugin need to handle low-level ptr directly via
+/// `__transform_plugin_process_impl(
+///     ast_ptr: *const u8, ast_ptr_len: i32,
+///     unresolved_mark: u32, should_enable_comments_proxy: i32) ->
+///     i32 /*  0 for success, fail otherwise.
+///             Note this is only for internal pointer interop result,
+///             not actual transform result */`
+///
+/// This requires manual handling of serialization / deserialization from ptrs.
+/// Refer swc_plugin_macro to see how does it work internally.
+#[plugin_transform]
+pub fn process_transform(program: Program, _metadata: TransformPluginProgramMetadata) -> Program {
+    program.fold_with(&mut as_folder(TransformVisitor))
+}
+
+// An example to test plugin transform.
+// Recommended strategy to test plugin's transform is verify
+// the Visitor's behavior, instead of trying to run `process_transform` with mocks
+// unless explicitly required to do so.
+test_inline!(
+    Default::default(),
+    |_| as_folder(TransformVisitor),
+    boo,
+    // Input codes
+    r#"console.log("transform");"#,
+    // Output codes after transformed with plugin
+    r#"console.log("transform");"#
+);