LibJS: Rewrite Parser.parse_object_expression()

This rewrite drastically increases the accuracy of object literals.
Additionally, an "assertIsSyntaxError" function has been added to
test-common.js to assist in testing syntax errors.

1 files changed, 11 insertions, 0 deletions

diff --git a/Libraries/LibJS/Tests/object-basic.js b/Libraries/LibJS/Tests/object-basic.js
index beebed1f35..d8dfcce02f 100644
--- a/Libraries/LibJS/Tests/object-basic.js
+++ b/Libraries/LibJS/Tests/object-basic.js
@@ -66,6 +66,17 @@ try {
     assert(a[2] === 3);
     assert(o4.test === undefined);
 
+    assertIsSyntaxError("({ get ...foo })");
+    assertIsSyntaxError("({ get... foo })");
+    assertIsSyntaxError("({ get foo })");
+    assertIsSyntaxError("({ get foo: bar })");
+    assertIsSyntaxError("({ get [foo]: bar })");
+    assertIsSyntaxError("({ get ...[foo] })");
+    assertIsSyntaxError("({ get foo(bar) {} })");
+    assertIsSyntaxError("({ set foo() {} })");
+    assertIsSyntaxError("({ set foo(bar, baz) {} })");
+    assertIsSyntaxError("({ ...foo: bar })");
+
     console.log("PASS");
 } catch (e) {
     console.log("FAIL: " + e);