Merge pull request #310 from visitorckw/fix-eof-crash

jserv · web-flow · commit 1169c76ec56a · 2025-10-11T11:22:56.000+08:00
Fix a crash when reporting an error at the end of a file
diff --git a/src/globals.c b/src/globals.c
@@ -1395,7 +1395,8 @@ void error(char *msg)
     start_idx = offset + 1;
 
     for (offset = 0;
-         offset < MAX_SOURCE && SOURCE->elements[start_idx + offset] != '\n';
+         offset < MAX_SOURCE && (start_idx + offset) < SOURCE->size &&
+         SOURCE->elements[start_idx + offset] != '\n';
          offset++) {
         diagnostic[i++] = SOURCE->elements[start_idx + offset];
     }

Original file line number	Diff line number	Diff line change
`@@ -1395,7 +1395,8 @@ void error(char *msg)`
`1395`	`1395`	`start_idx = offset + 1;`
`1396`	`1396`
`1397`	`1397`	`for (offset = 0;`
`1398`		`- offset < MAX_SOURCE && SOURCE->elements[start_idx + offset] != '\n';`
	`1398`	`+ offset < MAX_SOURCE && (start_idx + offset) < SOURCE->size &&`
	`1399`	`+ SOURCE->elements[start_idx + offset] != '\n';`
`1399`	`1400`	`offset++) {`
`1400`	`1401`	`diagnostic[i++] = SOURCE->elements[start_idx + offset];`
`1401`	`1402`	`}`