From 53a8cb12094b15aed1667f844abfefea1420d3d2 Mon Sep 17 00:00:00 2001
From: magic-akari <akari.ccino@gmail.com>
Date: Sat, 18 Jun 2022 18:00:52 +0800
Subject: [PATCH] fix(es/parser): Don't panic on an invalid import meta
 property (#4994)

---
 crates/swc_ecma_parser/src/parser/expr.rs                   | 4 ++++
 crates/swc_ecma_parser/tests/errors/issue-4991/1/input.js   | 3 +++
 .../tests/errors/issue-4991/1/input.js.stderr               | 6 ++++++
 crates/swc_ecma_parser/tests/errors/issue-4991/2/input.js   | 1 +
 .../tests/errors/issue-4991/2/input.js.stderr               | 6 ++++++
 crates/swc_ecma_parser/tests/errors/issue-4991/3/input.js   | 1 +
 .../tests/errors/issue-4991/3/input.js.stderr               | 6 ++++++
 crates/swc_ecma_parser/tests/errors/issue-4991/4/input.js   | 1 +
 .../tests/errors/issue-4991/4/input.js.stderr               | 6 ++++++
 9 files changed, 34 insertions(+)
 create mode 100644 crates/swc_ecma_parser/tests/errors/issue-4991/1/input.js
 create mode 100644 crates/swc_ecma_parser/tests/errors/issue-4991/1/input.js.stderr
 create mode 100644 crates/swc_ecma_parser/tests/errors/issue-4991/2/input.js
 create mode 100644 crates/swc_ecma_parser/tests/errors/issue-4991/2/input.js.stderr
 create mode 100644 crates/swc_ecma_parser/tests/errors/issue-4991/3/input.js
 create mode 100644 crates/swc_ecma_parser/tests/errors/issue-4991/3/input.js.stderr
 create mode 100644 crates/swc_ecma_parser/tests/errors/issue-4991/4/input.js
 create mode 100644 crates/swc_ecma_parser/tests/errors/issue-4991/4/input.js.stderr

diff --git a/crates/swc_ecma_parser/src/parser/expr.rs b/crates/swc_ecma_parser/src/parser/expr.rs
index 165153a2329..50e8f04d09e 100644
--- a/crates/swc_ecma_parser/src/parser/expr.rs
+++ b/crates/swc_ecma_parser/src/parser/expr.rs
@@ -1155,6 +1155,10 @@ impl<I: Tokens> Parser<I> {
             None
         };
 
+        if obj.is_import() && !is_one_of!(self, '.', '(') {
+            unexpected!(self, "`.` or `(`")
+        }
+
         let question_dot_token = if is!(self, '?') && peeked_is!(self, '.') {
             let start = cur_pos!(self);
             eat!(self, '?');
diff --git a/crates/swc_ecma_parser/tests/errors/issue-4991/1/input.js b/crates/swc_ecma_parser/tests/errors/issue-4991/1/input.js
new file mode 100644
index 00000000000..21eea8d6756
--- /dev/null
+++ b/crates/swc_ecma_parser/tests/errors/issue-4991/1/input.js
@@ -0,0 +1,3 @@
+const str = "meta";
+
+console.log(import[str]);
\ No newline at end of file
diff --git a/crates/swc_ecma_parser/tests/errors/issue-4991/1/input.js.stderr b/crates/swc_ecma_parser/tests/errors/issue-4991/1/input.js.stderr
new file mode 100644
index 00000000000..3b6b067e64c
--- /dev/null
+++ b/crates/swc_ecma_parser/tests/errors/issue-4991/1/input.js.stderr
@@ -0,0 +1,6 @@
+
+  x Unexpected token `[`. Expected `.` or `(`
+   ,-[$DIR/tests/errors/issue-4991/1/input.js:3:1]
+ 3 | console.log(import[str]);
+   :                   ^
+   `----
diff --git a/crates/swc_ecma_parser/tests/errors/issue-4991/2/input.js b/crates/swc_ecma_parser/tests/errors/issue-4991/2/input.js
new file mode 100644
index 00000000000..3b9ded9dc33
--- /dev/null
+++ b/crates/swc_ecma_parser/tests/errors/issue-4991/2/input.js
@@ -0,0 +1 @@
+console.log(import?.[meta]);
\ No newline at end of file
diff --git a/crates/swc_ecma_parser/tests/errors/issue-4991/2/input.js.stderr b/crates/swc_ecma_parser/tests/errors/issue-4991/2/input.js.stderr
new file mode 100644
index 00000000000..7e4b36806de
--- /dev/null
+++ b/crates/swc_ecma_parser/tests/errors/issue-4991/2/input.js.stderr
@@ -0,0 +1,6 @@
+
+  x Unexpected token `?`. Expected `.` or `(`
+   ,-[$DIR/tests/errors/issue-4991/2/input.js:1:1]
+ 1 | console.log(import?.[meta]);
+   :                   ^
+   `----
diff --git a/crates/swc_ecma_parser/tests/errors/issue-4991/3/input.js b/crates/swc_ecma_parser/tests/errors/issue-4991/3/input.js
new file mode 100644
index 00000000000..9ad30177b72
--- /dev/null
+++ b/crates/swc_ecma_parser/tests/errors/issue-4991/3/input.js
@@ -0,0 +1 @@
+console.log(import?.meta);
\ No newline at end of file
diff --git a/crates/swc_ecma_parser/tests/errors/issue-4991/3/input.js.stderr b/crates/swc_ecma_parser/tests/errors/issue-4991/3/input.js.stderr
new file mode 100644
index 00000000000..82ead0b76dd
--- /dev/null
+++ b/crates/swc_ecma_parser/tests/errors/issue-4991/3/input.js.stderr
@@ -0,0 +1,6 @@
+
+  x Unexpected token `?`. Expected `.` or `(`
+   ,-[$DIR/tests/errors/issue-4991/3/input.js:1:1]
+ 1 | console.log(import?.meta);
+   :                   ^
+   `----
diff --git a/crates/swc_ecma_parser/tests/errors/issue-4991/4/input.js b/crates/swc_ecma_parser/tests/errors/issue-4991/4/input.js
new file mode 100644
index 00000000000..b3193bd4886
--- /dev/null
+++ b/crates/swc_ecma_parser/tests/errors/issue-4991/4/input.js
@@ -0,0 +1 @@
+console.log(import.[meta]);
\ No newline at end of file
diff --git a/crates/swc_ecma_parser/tests/errors/issue-4991/4/input.js.stderr b/crates/swc_ecma_parser/tests/errors/issue-4991/4/input.js.stderr
new file mode 100644
index 00000000000..7d5fb6cb37a
--- /dev/null
+++ b/crates/swc_ecma_parser/tests/errors/issue-4991/4/input.js.stderr
@@ -0,0 +1,6 @@
+
+  x Expected ident
+   ,-[$DIR/tests/errors/issue-4991/4/input.js:1:1]
+ 1 | console.log(import.[meta]);
+   :                    ^
+   `----