From 0faa410781261724032914f91f20c46ccf1ea11e Mon Sep 17 00:00:00 2001
From: Dunqing <dengqing0821@gmail.com>
Date: Wed, 20 Mar 2024 18:29:28 +0800
Subject: [PATCH] feat(linter/import) check module import in no_duplicates

---
 .../src/rules/import/no_duplicates.rs         | 44 ++++++++++---------
 .../src/snapshots/no_duplicates.snap          | 26 +++++++++++
 2 files changed, 50 insertions(+), 20 deletions(-)

diff --git a/crates/oxc_linter/src/rules/import/no_duplicates.rs b/crates/oxc_linter/src/rules/import/no_duplicates.rs
index de47aeddb7b0..241a06f32402 100644
--- a/crates/oxc_linter/src/rules/import/no_duplicates.rs
+++ b/crates/oxc_linter/src/rules/import/no_duplicates.rs
@@ -4,7 +4,7 @@ use oxc_macros::declare_oxc_lint;
 
 use crate::{context::LintContext, rule::Rule};
 
-/// <https://github.com/import-js/eslint-plugin-import/blob/main/docs/rules/no-unresolved.md>
+/// <https://github.com/import-js/eslint-plugin-import/blob/main/docs/rules/no-duplicates.md>
 #[derive(Debug, Default, Clone)]
 pub struct NoDuplicates;
 
@@ -21,19 +21,24 @@ impl Rule for NoDuplicates {
         let module_record = ctx.semantic().module_record();
 
         let groups = module_record
-            .loaded_modules
+            .requested_modules
             .iter()
-            .map(|r| (r.value().resolved_absolute_path.clone(), r.key().clone()))
+            .map(|(source, spans)| {
+                let resolved_absolute_path = module_record.loaded_modules.get(source).map_or_else(
+                    || source.to_string(),
+                    |module| module.resolved_absolute_path.to_string_lossy().to_string(),
+                );
+                (resolved_absolute_path, spans)
+            })
             .group_by(|r| r.0.clone());
 
         for (_path, group) in &groups {
             let labels = group
                 .into_iter()
-                .map(|(_path, specifier)| specifier)
-                .filter_map(|specifier| module_record.requested_modules.get(&specifier))
-                .flatten()
+                .flat_map(|(_path, spans)| spans)
                 .map(|span| LabeledSpan::underline(*span))
                 .collect::<Vec<_>>();
+
             if labels.len() > 1 {
                 ctx.diagnostic(miette!(
                 severity = Severity::Warning,
@@ -175,20 +180,19 @@ export const value = {}",
         }
 
         export default TestComponent;",
-        // TODO: figure out module imports
-        // r#"import {A1,} from 'foo';
-        // import {B1,} from 'foo';
-        // import {C1,} from 'foo';
-
-        // import {
-        // A2,
-        // } from 'bar';
-        // import {
-        // B2,
-        // } from 'bar';
-        // import {
-        // C2,
-        // } from 'bar';"#,
+        r"import {A1,} from 'foo';
+        import {B1,} from 'foo';
+        import {C1,} from 'foo';
+
+        import {
+        A2,
+        } from 'bar';
+        import {
+        B2,
+        } from 'bar';
+        import {
+        C2,
+        } from 'bar';",
         // TypeScript
         // TODO: distinguish type imports in module record
         // r#"import type x from './foo'; import type y from './foo'"#,
diff --git a/crates/oxc_linter/src/snapshots/no_duplicates.snap b/crates/oxc_linter/src/snapshots/no_duplicates.snap
index 770ae4f91e02..9ed54b173e00 100644
--- a/crates/oxc_linter/src/snapshots/no_duplicates.snap
+++ b/crates/oxc_linter/src/snapshots/no_duplicates.snap
@@ -356,3 +356,29 @@ expression: no_duplicates
     ·            ─
  13 │         }
     ╰────
+
+  ⚠ eslint-plugin-import(no-duplicates): Forbid repeated import of the same module in multiple places
+   ╭─[index.ts:1:19]
+ 1 │ import {A1,} from 'foo';
+   ·                   ─────
+ 2 │         import {B1,} from 'foo';
+   ·                           ─────
+ 3 │         import {C1,} from 'foo';
+   ·                           ─────
+ 4 │ 
+   ╰────
+
+  ⚠ eslint-plugin-import(no-duplicates): Forbid repeated import of the same module in multiple places
+    ╭─[index.ts:7:16]
+  6 │         A2,
+  7 │         } from 'bar';
+    ·                ─────
+  8 │         import {
+  9 │         B2,
+ 10 │         } from 'bar';
+    ·                ─────
+ 11 │         import {
+ 12 │         C2,
+ 13 │         } from 'bar';
+    ·                ─────
+    ╰────