LibJS: Include source location hint in Parser::print_errors()

2 files changed, 8 insertions, 2 deletions

diff --git a/Libraries/LibJS/Lexer.h b/Libraries/LibJS/Lexer.h
index 24a4fe9d04..3efe290aa8 100644
--- a/Libraries/LibJS/Lexer.h
+++ b/Libraries/LibJS/Lexer.h
@@ -40,6 +40,8 @@ public:
 
     Token next();
 
+    const StringView& source() const { return m_source; };
+
 private:
     void consume();
     bool consume_exponent();
diff --git a/Libraries/LibJS/Parser.h b/Libraries/LibJS/Parser.h
index 2672eca4d8..6b7a1554af 100644
--- a/Libraries/LibJS/Parser.h
+++ b/Libraries/LibJS/Parser.h
@@ -143,8 +143,12 @@ public:
     const Vector<Error>& errors() const { return m_parser_state.m_errors; }
     void print_errors() const
     {
-        for (auto& error : m_parser_state.m_errors)
-            fprintf(stderr, "SyntaxError: %s\n", error.to_string().characters());
+        for (auto& error : m_parser_state.m_errors) {
+            auto hint = error.source_location_hint(m_parser_state.m_lexer.source());
+            if (!hint.is_empty())
+                warnln("{}", hint);
+            warnln("SyntaxError: {}", error.to_string());
+        }
     }
 
 private: