Fix crash on OCaml syntax error.

Author: cristianoc

CHANGELOG.md

@@ -8,6 +8,7 @@
 - Add command: ReScript: Restart Language Server
 - Fix issue where the server would crash on genType's errors.
 - Extend integration with reanalyze for code analysis. Support both `dce` and `exception` analysis which can be configured to e.g. both run by adding `{"reanalyze": {"analysis": ["dce", "exception"]} }` in `bsconfig.json`.
+- Fix issue where the server would crash if the project contains an OCaml file with a syntax error.
 
 ## 1.3.0
 

server/src/utils.ts

@@ -579,6 +579,19 @@ export let parseCompilerLogOutput = (
     ) {
       // OCaml warning: skip
       i++;
+    } else if (
+      line.startsWith("File ") &&
+      i + 1 < lines.length &&
+      lines[i + 1].startsWith("Error: Syntax error")
+    ) {
+      // OCaml Syntax Error
+      parsedDiagnostics.push({
+        code: undefined,
+        severity: t.DiagnosticSeverity.Error,
+        tag: undefined,
+        content: [lines[i], lines[i+1]],
+      });
+      i++;
     } else if (/^  +([0-9]+| +|\.) (│|┆)/.test(line)) {
       //         ^^ indent
       //           ^^^^^^^^^^^^^^^ gutter