fix: check upper bounds of message line numbers for code blocks (#247)

* fix: check upper bounds of message line numbers for code blocks * chore: run lint
eslint · Apr 1, 2024 · 00adccb · 00adccb
1 parent bb5c3d4
commit 00adccb
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diff --git a/lib/processor.js b/lib/processor.js
@@ -331,7 +331,7 @@ function adjustBlock(block) {
 
         const lineInCode = message.line - leadingCommentLines;
 
-        if (lineInCode < 1) {
+        if (lineInCode < 1 || lineInCode >= block.rangeMap.length) {
             return null;
         }
 

diff --git a/tests/lib/processor.js b/tests/lib/processor.js
@@ -755,6 +755,18 @@ describe("processor", () => {
             });
         });
 
+        it("should ignore messages after the code block", () => {
+            const empty = [
+                "```javascript",
+                "```"
+            ].join("\n");
+
+            processor.preprocess(empty, "empty.md");
+            const message = { message: "Empty file", ruleId: null, line: 2 };
+            const result = processor.postprocess([[message]], "empty.md");
+
+            assert.deepStrictEqual(result, []);
+        });
     });
 
     describe("supportsAutofix", () => {