feat: add alias support

crates/napi/src/lib.rs

@@ -18,6 +18,7 @@ pub fn compute_alias(root: &Option<PathBuf>, alias: Option<Buffer>) -> Option<Al
     Some(buf) => {
       let alias_str = String::from_utf8_lossy(&buf).to_string();
       let alias: Alias = alias_str
+        .trim()
         .split(" ")
         .map(|s| {
           let kv: Vec<&str> = s.split(":").collect();

packages/graph/__test__/alias.spec.mjs

@@ -0,0 +1,11 @@
+import test from 'ava'
+import {createParser, readParsedFile} from './utils.mjs'
+
+
+test('should parse alias path', async (t) => {
+  const parser = createParser({'@nested': './nested'})
+
+  await parser.visit('./alias.js')
+
+  t.deepEqual(parser.parse(), readParsedFile('./alias.json'))
+})

packages/graph/__test__/fixture/code/alias.js

@@ -0,0 +1,3 @@
+import {read} from 'fs'
+import {foo} from '@nested/foo'
+export {bar} from '@nested/bar'

packages/graph/__test__/fixture/parsed/alias.json

@@ -0,0 +1,83 @@
+{
+  "nested/foo.js": {
+    "id": "nested/foo.js",
+    "type": "internal",
+    "importer": [
+      "alias.js",
+      "nested/bar.js"
+    ],
+    "import": null
+  },
+  "alias.js": {
+    "id": "alias.js",
+    "type": "internal",
+    "importer": null,
+    "import": [
+      {
+        "id": "fs",
+        "type": "static",
+        "ident": [
+          {
+            "name": "read",
+            "as": "read",
+            "isType": false
+          }
+        ],
+        "typeOnly": false
+      },
+      {
+        "id": "nested/foo.js",
+        "type": "static",
+        "ident": [
+          {
+            "name": "foo",
+            "as": "foo",
+            "isType": false
+          }
+        ],
+        "typeOnly": false
+      },
+      {
+        "id": "nested/bar.js",
+        "type": "static",
+        "ident": [
+          {
+            "name": "bar",
+            "as": "bar",
+            "isType": false
+          }
+        ],
+        "typeOnly": false
+      }
+    ]
+  },
+  "fs": {
+    "id": "fs",
+    "type": "builtin",
+    "importer": [
+      "alias.js"
+    ],
+    "import": null
+  },
+  "nested/bar.js": {
+    "id": "nested/bar.js",
+    "type": "internal",
+    "importer": [
+      "alias.js"
+    ],
+    "import": [
+      {
+        "id": "nested/foo.js",
+        "type": "static",
+        "ident": [
+          {
+            "name": "foo",
+            "as": "foo",
+            "isType": false
+          }
+        ],
+        "typeOnly": false
+      }
+    ]
+  }
+}

packages/graph/__test__/utils.mjs

@@ -19,7 +19,8 @@ export const readParsedFile = (file, codeFiles = {}, nodeModules = {}, resolve =
 
   return JSON.parse(content)
 }
-export const parser = new Parser({ root: join(process.cwd(), '__test__/fixture/code') })
+export const createParser = (alias) => new Parser({ root: join(process.cwd(), '__test__/fixture/code'), alias })
+export const parser = createParser()
 export const getGitRepo = repo => join(__dirname, '../../../repos', repo)
 export const getGitRepoFiles = (repo, pattern, ignore) => {
   const root = getGitRepo(repo)