From d10cb9ffa29033048d242fc3fb4a35ea5fb1bf16 Mon Sep 17 00:00:00 2001
From: magic-akari <akari.ccino@gmail.com>
Date: Sat, 20 Jul 2024 20:51:51 +0800
Subject: [PATCH] feat(es/typescript): Add esm build for fast ts strip (#9286)

**Related issue:**

 - Closes https://github.com/swc-project/swc/issues/9283
---
 .github/workflows/publish-npm-package.yml     | 26 ++++++++++++-------
 .../binding_typescript_wasm/scripts/esm.mjs   | 15 +++++++++++
 .../binding_typescript_wasm/scripts/esm.sh    |  2 ++
 .../binding_typescript_wasm/scripts/patch.mjs |  1 +
 .../binding_typescript_wasm/src/wasm-node.js  | 10 +++++++
 5 files changed, 45 insertions(+), 9 deletions(-)
 create mode 100755 bindings/binding_typescript_wasm/scripts/esm.mjs
 create mode 100755 bindings/binding_typescript_wasm/scripts/esm.sh
 create mode 100644 bindings/binding_typescript_wasm/src/wasm-node.js

diff --git a/.github/workflows/publish-npm-package.yml b/.github/workflows/publish-npm-package.yml
index 18a9cd1e58f..6125861a638 100644
--- a/.github/workflows/publish-npm-package.yml
+++ b/.github/workflows/publish-npm-package.yml
@@ -588,12 +588,18 @@ jobs:
           - crate: "binding_core_wasm"
             npm: "@swc\\/wasm"
             target: nodejs
+            out: "pkg"
           - crate: "binding_core_wasm"
             npm: "@swc\\/wasm-web"
             target: web
+            out: "pkg"
           - crate: "binding_typescript_wasm"
-            npm: "@swc\\/wasm-typescript"
-            target: nodejs
+            build: "./scripts/build.sh"
+            out: "pkg"
+          - crate: "binding_typescript_wasm"
+            build: "./scripts/esm.sh"
+            out: "esm"
+
     steps:
       - uses: actions/checkout@v4
         with:
@@ -631,21 +637,23 @@ jobs:
 
       - name: Build
         working-directory: bindings/${{ matrix.settings.crate }}
+        if: ${{ !matrix.settings.build }}
         run: |
-          # If ./scripts/build.sh exists, apply it
-          if [ -f ./scripts/build.sh ]; then
-            ./scripts/build.sh
-          else
-            wasm-pack build --out-name wasm --release --scope=swc --target ${{ matrix.settings.target }}
-          fi
+          wasm-pack build --out-name wasm --release --scope=swc --target ${{ matrix.settings.target }}
           sed -i -e 's/"name": "@swc\/${{ matrix.settings.crate }}"/"name": "${{ matrix.settings.npm }}"/g' pkg/package.json
 
+      - name: Build
+        working-directory: bindings/${{ matrix.settings.crate }}
+        if: ${{ matrix.settings.build }}
+        run: |
+          ${{ matrix.settings.build }}
+
       - name: Publish
         if: ${{ !inputs.skipBuild }}
         run: |
           npm config set provenance true
           echo "//registry.npmjs.org/:_authToken=$NPM_TOKEN" >> ~/.npmrc
-          (cd bindings/${{ matrix.settings.crate }}/pkg && npm publish --access public --tag $NPM_TAG)
+          (cd bindings/${{ matrix.settings.crate }}/${{ matrix.settings.out }} && npm publish --access public --tag $NPM_TAG)
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           NPM_TOKEN: ${{ secrets.NPM_TOKEN }}
diff --git a/bindings/binding_typescript_wasm/scripts/esm.mjs b/bindings/binding_typescript_wasm/scripts/esm.mjs
new file mode 100755
index 00000000000..fef6b686e8a
--- /dev/null
+++ b/bindings/binding_typescript_wasm/scripts/esm.mjs
@@ -0,0 +1,15 @@
+import fs from "node:fs/promises";
+
+const pkgJsonFile = await fs.readFile("esm/package.json", "utf8");
+const pkgJson = JSON.parse(pkgJsonFile);
+pkgJson.name = '@swc/wasm-typescript-esm';
+pkgJson.exports = {
+    types: "./wasm.d.ts",
+    node: "./wasm-node.js",
+    default: "./wasm.js",
+};
+
+await Promise.all([
+    fs.cp("src/wasm-node.js", "esm/wasm-node.js"),
+    fs.writeFile("esm/package.json", JSON.stringify(pkgJson, null, 2)),
+]);
diff --git a/bindings/binding_typescript_wasm/scripts/esm.sh b/bindings/binding_typescript_wasm/scripts/esm.sh
new file mode 100755
index 00000000000..8ab3411b071
--- /dev/null
+++ b/bindings/binding_typescript_wasm/scripts/esm.sh
@@ -0,0 +1,2 @@
+wasm-pack build --out-name wasm --out-dir esm --release --scope=swc --target web
+node ./scripts/esm.mjs
diff --git a/bindings/binding_typescript_wasm/scripts/patch.mjs b/bindings/binding_typescript_wasm/scripts/patch.mjs
index 1f18112d6c7..8d645d1f8fa 100755
--- a/bindings/binding_typescript_wasm/scripts/patch.mjs
+++ b/bindings/binding_typescript_wasm/scripts/patch.mjs
@@ -37,5 +37,6 @@ await fs.unlink('pkg/wasm_bg.wasm');
 // Remove wasm from .files section of package.json
 const pkgJsonFile = await fs.readFile('pkg/package.json', 'utf8');
 const pkgJson = JSON.parse(pkgJsonFile);
+pkgJson.name = '@swc/wasm-typescript';
 pkgJson.files = pkgJson.files.filter(file => file !== 'wasm_bg.wasm');
 await fs.writeFile('pkg/package.json', JSON.stringify(pkgJson, null, 2));
\ No newline at end of file
diff --git a/bindings/binding_typescript_wasm/src/wasm-node.js b/bindings/binding_typescript_wasm/src/wasm-node.js
new file mode 100644
index 00000000000..98315bdc9e3
--- /dev/null
+++ b/bindings/binding_typescript_wasm/src/wasm-node.js
@@ -0,0 +1,10 @@
+import fs from "node:fs/promises";
+import initAsync from "./wasm.js";
+
+const wasm = new URL("./wasm_bg.wasm", import.meta.url);
+
+export default function (init = fs.readFile(wasm)) {
+    return initAsync(init);
+}
+
+export * from "./wasm.js";