From 8a092dbe17463dd75b2017007bdf60aaabdbf1a5 Mon Sep 17 00:00:00 2001
From: Lie Ryan <lie.1296@gmail.com>
Date: Mon, 21 Nov 2022 22:24:29 +1100
Subject: [PATCH 1/2] Fix #522. Implement patchedast parsing of MatchMapping

Somehow, this was missed back when the rest of `match` statement was
implemented.
---
 rope/refactor/patchedast.py         | 10 ++++++++++
 ropetest/refactor/patchedasttest.py | 30 +++++++++++++++++++++++++++++
 2 files changed, 40 insertions(+)

diff --git a/rope/refactor/patchedast.py b/rope/refactor/patchedast.py
index 614ea51b1..f7882e232 100644
--- a/rope/refactor/patchedast.py
+++ b/rope/refactor/patchedast.py
@@ -903,6 +903,16 @@ def _MatchClass(self, node):
     def _MatchValue(self, node):
         self._handle(node, [node.value])
 
+    def _MatchMapping(self, node):
+        children = []
+        children.append("{")
+        for index, (key, value) in enumerate(zip(node.keys, node.patterns)):
+            children.extend([key, ":", value])
+            if index < len(node.keys) - 1:
+                children.append(",")
+        children.append("}")
+        self._handle(node, children)
+
 
 class _Source:
     def __init__(self, source):
diff --git a/ropetest/refactor/patchedasttest.py b/ropetest/refactor/patchedasttest.py
index 0db04e463..bcfe482c2 100644
--- a/ropetest/refactor/patchedasttest.py
+++ b/ropetest/refactor/patchedasttest.py
@@ -1565,6 +1565,36 @@ def test_match_node_with_match_class_match_as_capture_pattern_with_explicit_name
         ])
 
 
+    @testutils.only_for_versions_higher("3.10")
+    def test_match_node_with_match_mapping_match_as(self):
+        source = dedent("""\
+            match x:
+                case {"a": b} as c:
+                    print(x)
+        """)
+        ast_frag = patchedast.get_patched_ast(source, True)
+        checker = _ResultChecker(self, ast_frag)
+        self.assert_single_case_match_block(checker, "MatchAs")
+        checker.check_children("MatchAs", [
+            "MatchMapping",
+            " ",
+            "as",
+            " ",
+            "c",
+        ])
+        checker.check_children("MatchMapping", [
+            "{",
+            "",
+            "Constant",
+            "",
+            ":",
+            " ",
+            "MatchAs",
+            "",
+            "}",
+        ])
+
+
 class _ResultChecker:
     def __init__(self, test_case, ast):
         self.test_case = test_case

From 6a61231191509976088f0c3ef0ac805c17b7d829 Mon Sep 17 00:00:00 2001
From: Lie Ryan <lie.1296@gmail.com>
Date: Mon, 21 Nov 2022 22:25:52 +1100
Subject: [PATCH 2/2] Update CHANGELOG.md

---
 CHANGELOG.md | 1 +
 1 file changed, 1 insertion(+)

diff --git a/CHANGELOG.md b/CHANGELOG.md
index 4741a06c9..6e7f0b0c5 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -2,6 +2,7 @@
 
 - #492 Feat: Global configuration support
 - #509 Fix read/write analysis of the left-hand side of an augmented assignment
+- #522 Implement patchedast parsing of MatchMapping
 
 # Release 1.4.0