test(es/transform): Add tests for source map (#10375)

kdy1 · web-flow · commit 0018a8ead259 · 2025-04-15T04:32:10.000Z
**Description:** I think the issue is in `@swc/cli` **Related issue:** - #6726
diff --git a/crates/swc/tests/fixture/issues-6xxx/6726/input/.swcrc b/crates/swc/tests/fixture/issues-6xxx/6726/input/.swcrc
@@ -0,0 +1,17 @@
+{
+    "$schema": "https://swc.rs/schema.json",
+    "jsc": {
+        "minify": {
+            "mangle": true
+        },
+        "parser": {
+            "syntax": "typescript"
+        },
+        "target": "es2024",
+        "loose": false,
+        "externalHelpers": false,
+        "keepClassNames": false
+    },
+    "minify": true,
+    "sourceMaps": true
+}
diff --git a/crates/swc/tests/fixture/issues-6xxx/6726/input/2.ts b/crates/swc/tests/fixture/issues-6xxx/6726/input/2.ts
@@ -0,0 +1,10 @@
+interface Props {
+    foo: string;
+}
+
+function Page(props: Props) {
+    props.foo;
+}
+
+// @ts-expect-error
+Page();
diff --git a/crates/swc/tests/fixture/issues-6xxx/6726/input/index.jsx b/crates/swc/tests/fixture/issues-6xxx/6726/input/index.jsx
@@ -0,0 +1,11 @@
+export function App() {
+    let [counter, setCounter] = React.useState(0);
+    if (counter === 10) throw new Error("Too high!");
+    return Other();
+}
+
+function Other() {
+    return "Change me";
+}
+
+globalThis.Other = Other;
diff --git a/crates/swc/tests/fixture/issues-6xxx/6726/output/2.map b/crates/swc/tests/fixture/issues-6xxx/6726/output/2.map
@@ -0,0 +1,15 @@
+{
+  "mappings": "AAIA,SAASA,KAAKC,CAAY,EACtBA,EAAMC,GAAG,AACb,CAGAF",
+  "names": [
+    "Page",
+    "props",
+    "foo"
+  ],
+  "sources": [
+    "../../input/2.ts"
+  ],
+  "sourcesContent": [
+    "interface Props {\n    foo: string;\n}\n\nfunction Page(props: Props) {\n    props.foo;\n}\n\n// @ts-expect-error\nPage();"
+  ],
+  "version": 3
+}
diff --git a/crates/swc/tests/fixture/issues-6xxx/6726/output/2.ts b/crates/swc/tests/fixture/issues-6xxx/6726/output/2.ts
@@ -0,0 +1 @@
+function Page(o){o.foo}Page();
diff --git a/crates/swc/tests/fixture/issues-6xxx/6726/output/index.jsx b/crates/swc/tests/fixture/issues-6xxx/6726/output/index.jsx
@@ -0,0 +1 @@
+export function App(){let[t,r]=React.useState(0);if(t===10)throw new Error("Too high!");return e()}function e(){return"Change me"}globalThis.Other=e;
diff --git a/crates/swc/tests/fixture/issues-6xxx/6726/output/index.map b/crates/swc/tests/fixture/issues-6xxx/6726/output/index.map
@@ -0,0 +1,20 @@
+{
+  "mappings": "AAAA,OAAO,SAASA,MACZ,GAAI,CAACC,EAASC,EAAW,CAAGC,MAAMC,QAAQ,CAAC,GAC3C,GAAIH,IAAY,GAAI,MAAM,IAAII,MAAM,aACpC,OAAOC,GACX,CAEA,SAASA,IACL,MAAO,WACX,CAEAC,WAAWD,KAAK,CAAGA",
+  "names": [
+    "App",
+    "counter",
+    "setCounter",
+    "React",
+    "useState",
+    "Error",
+    "Other",
+    "globalThis"
+  ],
+  "sources": [
+    "../../input/index.jsx"
+  ],
+  "sourcesContent": [
+    "export function App() {\n    let [counter, setCounter] = React.useState(0);\n    if (counter === 10) throw new Error(\"Too high!\");\n    return Other();\n}\n\nfunction Other() {\n    return \"Change me\";\n}\n\nglobalThis.Other = Other;"
+  ],
+  "version": 3
+}
diff --git a/packages/core/__tests__/transform/sourcemap_test.js b/packages/core/__tests__/transform/sourcemap_test.js
@@ -125,4 +125,13 @@ describe("sourceMaps: true in .swcrc", () => {
 
         expect(out.map).toBeUndefined();
     });
+
+    it(`should have names `, async () => {
+        const out = await swc.transformFile(
+            path.join(__dirname, "..", "..", "tests", "issue-2120", "input.js")
+        );
+
+        expect(out.map).toBeTruthy();
+        expect(JSON.parse(out.map).names).toEqual(["Foo", "Array", "console", "log"]);
+    });
 });

Original file line number	Diff line number	Diff line change
`@@ -0,0 +1 @@`
	`1`	`+export function App(){let[t,r]=React.useState(0);if(t===10)throw new Error("Too high!");return e()}function e(){return"Change me"}globalThis.Other=e;`