[ruby/yarp] Consolidate operator write nodes

https://github.com/ruby/yarp/commit/22b287e2b1

19 files changed, 166 insertions, 433 deletions

diff --git a/test/yarp/location_test.rb b/test/yarp/location_test.rb
index 6db82e7da5..07bb48bb46 100644
--- a/test/yarp/location_test.rb
+++ b/test/yarp/location_test.rb
@@ -209,10 +209,6 @@ module YARP
       assert_location(ClassNode, "class Foo < Bar end")
     end
 
-    def test_ClassVariableOperatorWriteNode
-      assert_location(ClassVariableOperatorWriteNode, "@@foo += bar")
-    end
-
     def test_ClassVariableReadNode
       assert_location(ClassVariableReadNode, "@@foo")
     end
@@ -233,14 +229,6 @@ module YARP
       assert_location(ConstantPathWriteNode, "::Foo::Bar = baz")
     end
 
-    def test_ConstantPathOperatorWriteNode
-      assert_location(ConstantPathOperatorWriteNode, "Parent::Child += bar")
-    end
-
-    def test_ConstantOperatorWriteNode
-      assert_location(ConstantOperatorWriteNode, "Foo += bar")
-    end
-
     def test_ConstantReadNode
       assert_location(ConstantReadNode, "Foo")
       assert_location(ConstantReadNode, "Foo::Bar", 5...8, &:child)
@@ -314,10 +302,6 @@ module YARP
       assert_location(ForwardingSuperNode, "super {}")
     end
 
-    def test_GlobalVariableOperatorWriteNode
-      assert_location(GlobalVariableOperatorWriteNode, "$foo += bar")
-    end
-
     def test_GlobalVariableReadNode
       assert_location(GlobalVariableReadNode, "$foo")
     end
@@ -352,10 +336,6 @@ module YARP
       end
     end
 
-    def test_InstanceVariableOperatorWriteNode
-      assert_location(InstanceVariableOperatorWriteNode, "@foo += bar")
-    end
-
     def test_InstanceVariableReadNode
       assert_location(InstanceVariableReadNode, "@foo")
     end
@@ -422,12 +402,6 @@ module YARP
       assert_location(LambdaNode, "-> do foo end")
     end
 
-    def test_LocalVariableOperatorWriteNode
-      assert_location(LocalVariableOperatorWriteNode, "foo += bar")
-      assert_location(LocalVariableOperatorWriteNode, "foo = 1; foo += bar", 9...19)
-    end
-
-
     def test_LocalVariableReadNode
       assert_location(LocalVariableReadNode, "foo = 1; foo", 9...12)
     end
@@ -471,6 +445,16 @@ module YARP
       assert_location(NumberedReferenceReadNode, "$1")
     end
 
+    def test_OperatorWriteNode
+      assert_location(OperatorWriteNode, "@@foo += bar")
+      assert_location(OperatorWriteNode, "Parent::Child += bar")
+      assert_location(OperatorWriteNode, "Foo += bar")
+      assert_location(OperatorWriteNode, "$foo += bar")
+      assert_location(OperatorWriteNode, "@foo += bar")
+      assert_location(OperatorWriteNode, "foo += bar")
+      assert_location(OperatorWriteNode, "foo = 1; foo += bar", 9...19)
+    end
+
     def test_OptionalParameterNode
       assert_location(OptionalParameterNode, "def foo(bar = nil); end", 8...17) do |node|
         node.parameters.optionals.first
diff --git a/test/yarp/snapshots/blocks.txt b/test/yarp/snapshots/blocks.txt
index 3579d99bd7..214f5e5427 100644
--- a/test/yarp/snapshots/blocks.txt
+++ b/test/yarp/snapshots/blocks.txt
@@ -88,12 +88,11 @@ ProgramNode(0...402)(
            (61...62)
          ),
          StatementsNode(63...72)(
-           [LocalVariableOperatorWriteNode(63...72)(
-              (63...67),
+           [OperatorWriteNode(63...72)(
+              LocalVariableReadNode(63...67)(:memo, 0),
               (68...70),
-              LocalVariableReadNode(71...72)(:x, 0),
-              :memo,
-              :+
+              :+,
+              LocalVariableReadNode(71...72)(:x, 0)
             )]
          ),
          (51...52),
diff --git a/test/yarp/snapshots/boolean_operators.txt b/test/yarp/snapshots/boolean_operators.txt
index 51fd183944..39a3b6effb 100644
--- a/test/yarp/snapshots/boolean_operators.txt
+++ b/test/yarp/snapshots/boolean_operators.txt
@@ -6,12 +6,11 @@ ProgramNode(0...24)(
        CallNode(6...7)(nil, nil, (6...7), nil, nil, nil, nil, 2, "b"),
        (2...5)
      ),
-     LocalVariableOperatorWriteNode(9...15)(
-       (9...10),
+     OperatorWriteNode(9...15)(
+       LocalVariableReadNode(9...10)(:a, 0),
        (11...13),
-       CallNode(14...15)(nil, nil, (14...15), nil, nil, nil, nil, 2, "b"),
-       :a,
-       :+
+       :+,
+       CallNode(14...15)(nil, nil, (14...15), nil, nil, nil, nil, 2, "b")
      ),
      OrWriteNode(17...24)(
        LocalVariableReadNode(17...18)(:a, 0),
diff --git a/test/yarp/snapshots/defined.txt b/test/yarp/snapshots/defined.txt
index 4d0b377a8a..3d938b6969 100644
--- a/test/yarp/snapshots/defined.txt
+++ b/test/yarp/snapshots/defined.txt
@@ -8,12 +8,11 @@ ProgramNode(0...78)(
      ),
      DefinedNode(27...43)(
        (35...36),
-       LocalVariableOperatorWriteNode(36...42)(
-         (36...37),
+       OperatorWriteNode(36...42)(
+         LocalVariableReadNode(36...37)(:x, 0),
          (38...40),
-         IntegerNode(41...42)(),
-         :x,
-         :%
+         :%,
+         IntegerNode(41...42)()
        ),
        (42...43),
        (27...35)
diff --git a/test/yarp/snapshots/seattlerb/const_op_asgn_and1.txt b/test/yarp/snapshots/seattlerb/const_op_asgn_and1.txt
index 1e7dce0226..e2ba0e9a23 100644
--- a/test/yarp/snapshots/seattlerb/const_op_asgn_and1.txt
+++ b/test/yarp/snapshots/seattlerb/const_op_asgn_and1.txt
@@ -1,11 +1,11 @@
 ProgramNode(0...8)(
   [],
   StatementsNode(0...8)(
-    [ConstantPathOperatorWriteNode(0...8)(
+    [OperatorWriteNode(0...8)(
        ConstantPathNode(0...3)(nil, ConstantReadNode(2...3)(), (0...2)),
        (4...6),
-       IntegerNode(7...8)(),
-       :&
+       :&,
+       IntegerNode(7...8)()
      )]
   )
 )
diff --git a/test/yarp/snapshots/seattlerb/messy_op_asgn_lineno.txt b/test/yarp/snapshots/seattlerb/messy_op_asgn_lineno.txt
index 71a28870bd..a27ed4b8d1 100644
--- a/test/yarp/snapshots/seattlerb/messy_op_asgn_lineno.txt
+++ b/test/yarp/snapshots/seattlerb/messy_op_asgn_lineno.txt
@@ -9,13 +9,14 @@ ProgramNode(0...15)(
        ArgumentsNode(2...15)(
          [ParenthesesNode(2...15)(
             StatementsNode(3...14)(
-              [ConstantPathOperatorWriteNode(3...14)(
+              [OperatorWriteNode(3...14)(
                  ConstantPathNode(3...7)(
                    ConstantReadNode(3...4)(),
                    ConstantReadNode(6...7)(),
                    (4...6)
                  ),
                  (8...10),
+                 :*,
                  CallNode(11...14)(
                    nil,
                    nil,
@@ -38,8 +39,7 @@ ProgramNode(0...15)(
                    nil,
                    0,
                    "d"
-                 ),
-                 :*
+                 )
                )]
             ),
             (2...3),
diff --git a/test/yarp/snapshots/seattlerb/op_asgn_primary_colon_const_command_call.txt b/test/yarp/snapshots/seattlerb/op_asgn_primary_colon_const_command_call.txt
index 0cd3775202..a69dc2e661 100644
--- a/test/yarp/snapshots/seattlerb/op_asgn_primary_colon_const_command_call.txt
+++ b/test/yarp/snapshots/seattlerb/op_asgn_primary_colon_const_command_call.txt
@@ -1,13 +1,14 @@
 ProgramNode(0...11)(
   [],
   StatementsNode(0...11)(
-    [ConstantPathOperatorWriteNode(0...11)(
+    [OperatorWriteNode(0...11)(
        ConstantPathNode(0...4)(
          ConstantReadNode(0...1)(),
          ConstantReadNode(3...4)(),
          (1...3)
        ),
        (5...7),
+       :*,
        CallNode(8...11)(
          nil,
          nil,
@@ -20,8 +21,7 @@ ProgramNode(0...11)(
          nil,
          0,
          "c"
-       ),
-       :*
+       )
      )]
   )
 )
diff --git a/test/yarp/snapshots/seattlerb/parse_line_defn_complex.txt b/test/yarp/snapshots/seattlerb/parse_line_defn_complex.txt
index adf81b25d1..4da4f25e90 100644
--- a/test/yarp/snapshots/seattlerb/parse_line_defn_complex.txt
+++ b/test/yarp/snapshots/seattlerb/parse_line_defn_complex.txt
@@ -25,12 +25,11 @@ ProgramNode(0...40)(
             0,
             "p"
           ),
-          LocalVariableOperatorWriteNode(18...24)(
-            (18...19),
+          OperatorWriteNode(18...24)(
+            LocalVariableReadNode(18...19)(:y, 0),
             (20...22),
-            IntegerNode(23...24)(),
-            :y,
-            :*
+            :*,
+            IntegerNode(23...24)()
           ),
           ReturnNode(27...35)(
             (27...33),
diff --git a/test/yarp/snapshots/seattlerb/parse_line_op_asgn.txt b/test/yarp/snapshots/seattlerb/parse_line_op_asgn.txt
index 011858c31e..8763aab978 100644
--- a/test/yarp/snapshots/seattlerb/parse_line_op_asgn.txt
+++ b/test/yarp/snapshots/seattlerb/parse_line_op_asgn.txt
@@ -1,12 +1,11 @@
 ProgramNode(6...34)(
   [:foo],
   StatementsNode(6...34)(
-    [LocalVariableOperatorWriteNode(6...24)(
-       (6...9),
+    [OperatorWriteNode(6...24)(
+       LocalVariableReadNode(6...9)(:foo, 0),
        (10...12),
-       CallNode(21...24)(nil, nil, (21...24), nil, nil, nil, nil, 2, "bar"),
-       :foo,
-       :+
+       :+,
+       CallNode(21...24)(nil, nil, (21...24), nil, nil, nil, nil, 2, "bar")
      ),
      CallNode(31...34)(nil, nil, (31...34), nil, nil, nil, nil, 2, "baz")]
   )
diff --git a/test/yarp/snapshots/unparser/corpus/literal/opasgn.txt b/test/yarp/snapshots/unparser/corpus/literal/opasgn.txt
index 8be4d97e04..21933e302b 100644
--- a/test/yarp/snapshots/unparser/corpus/literal/opasgn.txt
+++ b/test/yarp/snapshots/unparser/corpus/literal/opasgn.txt
@@ -1,40 +1,35 @@
 ProgramNode(0...233)(
   [:a, :h],
   StatementsNode(0...233)(
-    [LocalVariableOperatorWriteNode(0...6)(
-       (0...1),
+    [OperatorWriteNode(0...6)(
+       LocalVariableReadNode(0...1)(:a, 0),
        (2...4),
-       IntegerNode(5...6)(),
-       :a,
-       :+
+       :+,
+       IntegerNode(5...6)()
      ),
-     LocalVariableOperatorWriteNode(7...13)(
-       (7...8),
+     OperatorWriteNode(7...13)(
+       LocalVariableReadNode(7...8)(:a, 0),
        (9...11),
-       IntegerNode(12...13)(),
-       :a,
-       :-
+       :-,
+       IntegerNode(12...13)()
      ),
-     LocalVariableOperatorWriteNode(14...21)(
-       (14...15),
+     OperatorWriteNode(14...21)(
+       LocalVariableReadNode(14...15)(:a, 0),
        (16...19),
-       IntegerNode(20...21)(),
-       :a,
-       :**
+       :**,
+       IntegerNode(20...21)()
      ),
-     LocalVariableOperatorWriteNode(22...28)(
-       (22...23),
+     OperatorWriteNode(22...28)(
+       LocalVariableReadNode(22...23)(:a, 0),
        (24...26),
-       IntegerNode(27...28)(),
-       :a,
-       :*
+       :*,
+       IntegerNode(27...28)()
      ),
-     LocalVariableOperatorWriteNode(29...35)(
-       (29...30),
+     OperatorWriteNode(29...35)(
+       LocalVariableReadNode(29...30)(:a, 0),
        (31...33),
-       IntegerNode(34...35)(),
-       :a,
-       :/
+       :/,
+       IntegerNode(34...35)()
      ),
      AndWriteNode(36...43)(
        LocalVariableReadNode(36...37)(:a, 0),
diff --git a/test/yarp/snapshots/whitequark/const_op_asgn.txt b/test/yarp/snapshots/whitequark/const_op_asgn.txt
index 101df656f9..a9da130fe4 100644
--- a/test/yarp/snapshots/whitequark/const_op_asgn.txt
+++ b/test/yarp/snapshots/whitequark/const_op_asgn.txt
@@ -1,27 +1,27 @@
 ProgramNode(0...77)(
   [],
   StatementsNode(0...77)(
-    [ConstantPathOperatorWriteNode(0...8)(
+    [OperatorWriteNode(0...8)(
        ConstantPathNode(0...3)(nil, ConstantReadNode(2...3)(), (0...2)),
        (4...6),
-       IntegerNode(7...8)(),
-       :+
+       :+,
+       IntegerNode(7...8)()
      ),
-     ConstantOperatorWriteNode(10...16)(
-       (10...11),
+     OperatorWriteNode(10...16)(
+       ConstantReadNode(10...11)(),
        (12...14),
-       IntegerNode(15...16)(),
-       :+
+       :+,
+       IntegerNode(15...16)()
      ),
-     ConstantPathOperatorWriteNode(18...27)(
+     OperatorWriteNode(18...27)(
        ConstantPathNode(18...22)(
          ConstantReadNode(18...19)(),
          ConstantReadNode(21...22)(),
          (19...21)
        ),
        (23...25),
-       IntegerNode(26...27)(),
-       :+
+       :+,
+       IntegerNode(26...27)()
      ),
      DefNode(29...50)(
        (33...34),
diff --git a/test/yarp/snapshots/whitequark/op_asgn_cmd.txt b/test/yarp/snapshots/whitequark/op_asgn_cmd.txt
index 409aa26ee2..116d641b88 100644
--- a/test/yarp/snapshots/whitequark/op_asgn_cmd.txt
+++ b/test/yarp/snapshots/whitequark/op_asgn_cmd.txt
@@ -77,13 +77,14 @@ ProgramNode(0...64)(
        ),
        :+
      ),
-     ConstantPathOperatorWriteNode(32...47)(
+     OperatorWriteNode(32...47)(
        ConstantPathNode(32...38)(
          CallNode(32...35)(nil, nil, (32...35), nil, nil, nil, nil, 2, "foo"),
          ConstantReadNode(37...38)(),
          (35...37)
        ),
        (39...41),
+       :+,
        CallNode(42...47)(
          nil,
          nil,
@@ -106,8 +107,7 @@ ProgramNode(0...64)(
          nil,
          0,
          "m"
-       ),
-       :+
+       )
      ),
      CallOperatorWriteNode(49...64)(
        CallNode(49...55)(
diff --git a/test/yarp/snapshots/whitequark/rescue_mod_op_assign.txt b/test/yarp/snapshots/whitequark/rescue_mod_op_assign.txt
index 051ead127c..14125cec69 100644
--- a/test/yarp/snapshots/whitequark/rescue_mod_op_assign.txt
+++ b/test/yarp/snapshots/whitequark/rescue_mod_op_assign.txt
@@ -1,16 +1,15 @@
 ProgramNode(0...22)(
   [:foo],
   StatementsNode(0...22)(
-    [LocalVariableOperatorWriteNode(0...22)(
-       (0...3),
+    [OperatorWriteNode(0...22)(
+       LocalVariableReadNode(0...3)(:foo, 0),
        (4...6),
+       :+,
        RescueModifierNode(7...22)(
          CallNode(7...11)(nil, nil, (7...11), nil, nil, nil, nil, 2, "meth"),
          (12...18),
          CallNode(19...22)(nil, nil, (19...22), nil, nil, nil, nil, 2, "bar")
-       ),
-       :foo,
-       :+
+       )
      )]
   )
 )
diff --git a/test/yarp/snapshots/whitequark/ruby_bug_12402.txt b/test/yarp/snapshots/whitequark/ruby_bug_12402.txt
index f329ad8bbd..9573dc5fa7 100644
--- a/test/yarp/snapshots/whitequark/ruby_bug_12402.txt
+++ b/test/yarp/snapshots/whitequark/ruby_bug_12402.txt
@@ -1,9 +1,10 @@
 ProgramNode(0...437)(
   [:foo],
   StatementsNode(0...437)(
-    [LocalVariableOperatorWriteNode(0...27)(
-       (0...3),
+    [OperatorWriteNode(0...27)(
+       LocalVariableReadNode(0...3)(:foo, 0),
        (4...6),
+       :+,
        CallNode(7...27)(
          nil,
          nil,
@@ -30,13 +31,12 @@ ProgramNode(0...437)(
          nil,
          0,
          "raise"
-       ),
-       :foo,
-       :+
+       )
      ),
-     LocalVariableOperatorWriteNode(29...57)(
-       (29...32),
+     OperatorWriteNode(29...57)(
+       LocalVariableReadNode(29...32)(:foo, 0),
        (33...35),
+       :+,
        RescueModifierNode(36...57)(
          CallNode(36...46)(
            nil,
@@ -63,9 +63,7 @@ ProgramNode(0...437)(
          ),
          (47...53),
          NilNode(54...57)()
-       ),
-       :foo,
-       :+
+       )
      ),
      LocalVariableWriteNode(59...85)(
        :foo,
diff --git a/test/yarp/snapshots/whitequark/ruby_bug_12669.txt b/test/yarp/snapshots/whitequark/ruby_bug_12669.txt
index fc6b673c50..c7932a409f 100644
--- a/test/yarp/snapshots/whitequark/ruby_bug_12669.txt
+++ b/test/yarp/snapshots/whitequark/ruby_bug_12669.txt
@@ -1,12 +1,14 @@
 ProgramNode(0...74)(
   [:a, :b],
   StatementsNode(0...74)(
-    [LocalVariableOperatorWriteNode(0...18)(
-       (0...1),
+    [OperatorWriteNode(0...18)(
+       LocalVariableReadNode(0...1)(:a, 0),
        (2...4),
-       LocalVariableOperatorWriteNode(5...18)(
-         (5...6),
+       :+,
+       OperatorWriteNode(5...18)(
+         LocalVariableReadNode(5...6)(:b, 0),
          (7...9),
+         :+,
          CallNode(10...18)(
            nil,
            nil,
@@ -19,16 +21,13 @@ ProgramNode(0...74)(
            nil,
            0,
            "raise"
-         ),
-         :b,
-         :+
-       ),
-       :a,
-       :+
+         )
+       )
      ),
-     LocalVariableOperatorWriteNode(20...37)(
-       (20...21),
+     OperatorWriteNode(20...37)(
+       LocalVariableReadNode(20...21)(:a, 0),
        (22...24),
+       :+,
        LocalVariableWriteNode(25...37)(
          :b,
          0,
@@ -47,16 +46,15 @@ ProgramNode(0...74)(
          ),
          (25...26),
          (27...28)
-       ),
-       :a,
-       :+
+       )
      ),
      LocalVariableWriteNode(39...56)(
        :a,
        0,
-       LocalVariableOperatorWriteNode(43...56)(
-         (43...44),
+       OperatorWriteNode(43...56)(
+         LocalVariableReadNode(43...44)(:b, 0),
          (45...47),
+         :+,
          CallNode(48...56)(
            nil,
            nil,
@@ -69,9 +67,7 @@ ProgramNode(0...74)(
            nil,
            0,
            "raise"
-         ),
-         :b,
-         :+
+         )
        ),
        (39...40),
        (41...42)
diff --git a/test/yarp/snapshots/whitequark/var_op_asgn.txt b/test/yarp/snapshots/whitequark/var_op_asgn.txt
index 2bc8667b6a..863605ebad 100644
--- a/test/yarp/snapshots/whitequark/var_op_asgn.txt
+++ b/test/yarp/snapshots/whitequark/var_op_asgn.txt
@@ -1,35 +1,34 @@
 ProgramNode(0...53)(
   [:a],
   StatementsNode(0...53)(
-    [ClassVariableOperatorWriteNode(0...11)(
-       (0...5),
+    [OperatorWriteNode(0...11)(
+       ClassVariableReadNode(0...5)(),
        (6...8),
-       IntegerNode(9...11)(),
-       :|
+       :|,
+       IntegerNode(9...11)()
      ),
-     InstanceVariableOperatorWriteNode(13...20)(
-       (13...15),
+     OperatorWriteNode(13...20)(
+       InstanceVariableReadNode(13...15)(),
        (16...18),
-       IntegerNode(19...20)(),
-       :|
+       :|,
+       IntegerNode(19...20)()
      ),
-     LocalVariableOperatorWriteNode(22...28)(
-       (22...23),
+     OperatorWriteNode(22...28)(
+       LocalVariableReadNode(22...23)(:a, 0),
        (24...26),
-       IntegerNode(27...28)(),
-       :a,
-       :+
+       :+,
+       IntegerNode(27...28)()
      ),
      DefNode(30...53)(
        (34...35),
        nil,
        nil,
        StatementsNode(37...48)(
-         [ClassVariableOperatorWriteNode(37...48)(
-            (37...42),
+         [OperatorWriteNode(37...48)(
+            ClassVariableReadNode(37...42)(),
             (43...45),
-            IntegerNode(46...48)(),
-            :|
+            :|,
+            IntegerNode(46...48)()
           )]
        ),
        [],
diff --git a/test/yarp/snapshots/whitequark/var_op_asgn_cmd.txt b/test/yarp/snapshots/whitequark/var_op_asgn_cmd.txt
index 4ef661f2fd..4d7ef7d467 100644
--- a/test/yarp/snapshots/whitequark/var_op_asgn_cmd.txt
+++ b/test/yarp/snapshots/whitequark/var_op_asgn_cmd.txt
@@ -1,9 +1,10 @@
 ProgramNode(0...12)(
   [:foo],
   StatementsNode(0...12)(
-    [LocalVariableOperatorWriteNode(0...12)(
-       (0...3),
+    [OperatorWriteNode(0...12)(
+       LocalVariableReadNode(0...3)(:foo, 0),
        (4...6),
+       :+,
        CallNode(7...12)(
          nil,
          nil,
@@ -14,9 +15,7 @@ ProgramNode(0...12)(
          nil,
          0,
          "m"
-       ),
-       :foo,
-       :+
+       )
      )]
   )
 )
diff --git a/yarp/config.yml b/yarp/config.yml
index 8e923495ff..5f0b6fa401 100644
--- a/yarp/config.yml
+++ b/yarp/config.yml
@@ -736,21 +736,6 @@ nodes:
 
           class Foo end
           ^^^^^^^^^^^^^
-  - name: ClassVariableOperatorWriteNode
-    child_nodes:
-      - name: name_loc
-        type: location
-      - name: operator_loc
-        type: location
-      - name: value
-        type: node
-      - name: operator
-        type: constant
-    comment: |
-      Represents assigning to a class variable using an operator that isn't `=`.
-
-          @@target += value
-          ^^^^^^^^^^^^^^^^^
   - name: ClassVariableReadNode
     comment: |
       Represents referencing a class variable.
@@ -770,21 +755,6 @@ nodes:
 
           @@foo = 1
           ^^^^^^^^^
-  - name: ConstantOperatorWriteNode
-    child_nodes:
-      - name: name_loc
-        type: location
-      - name: operator_loc
-        type: location
-      - name: value
-        type: node
-      - name: operator
-        type: constant
-    comment: |
-      Represents assigning to a constant using an operator that isn't `=`.
-
-          Target += value
-          ^^^^^^^^^^^^^^^
   - name: ConstantPathNode
     child_nodes:
       - name: parent
@@ -798,22 +768,6 @@ nodes:
 
           Foo::Bar
           ^^^^^^^^
-  - name: ConstantPathOperatorWriteNode
-    child_nodes:
-      - name: target
-        type: node
-        kind: ConstantPathNode
-      - name: operator_loc
-        type: location
-      - name: value
-        type: node
-      - name: operator
-        type: constant
-    comment: |
-      Represents assigning to a constant path using an operator that isn't `=`.
-
-          Parent::Child += value
-          ^^^^^^^^^^^^^^^^^^^^^^
   - name: ConstantPathWriteNode
     child_nodes:
       - name: target
@@ -1056,21 +1010,6 @@ nodes:
 
           super
           ^^^^^
-  - name: GlobalVariableOperatorWriteNode
-    child_nodes:
-      - name: name_loc
-        type: location
-      - name: operator_loc
-        type: location
-      - name: value
-        type: node
-      - name: operator
-        type: constant
-    comment: |
-      Represents assigning to a global variable using an operator that isn't `=`.
-
-          $target += value
-          ^^^^^^^^^^^^^^^^
   - name: GlobalVariableReadNode
     comment: |
       Represents referencing a global variable.
@@ -1170,21 +1109,6 @@ nodes:
 
           case a; in b then c end
                   ^^^^^^^^^^^
-  - name: InstanceVariableOperatorWriteNode
-    child_nodes:
-      - name: name_loc
-        type: location
-      - name: operator_loc
-        type: location
-      - name: value
-        type: node
-      - name: operator
-        type: constant
-    comment: |
-      Represents assigning to an instance variable using an operator that isn't `=`.
-
-          @target += value
-          ^^^^^^^^^^^^^^^^
   - name: InstanceVariableReadNode
     comment: |
       Represents referencing an instance variable.
@@ -1322,23 +1246,6 @@ nodes:
 
           ->(value) { value * 2 }
           ^^^^^^^^^^^^^^^^^^^^^^^
-  - name: LocalVariableOperatorWriteNode
-    child_nodes:
-      - name: name_loc
-        type: location
-      - name: operator_loc
-        type: location
-      - name: value
-        type: node
-      - name: constant_id
-        type: constant
-      - name: operator_id
-        type: constant
-    comment: |
-      Represents assigning to a local variable using an operator that isn't `=`.
-
-          target += value
-          ^^^^^^^^^^^^^^^
   - name: LocalVariableReadNode
     child_nodes:
       - name: constant_id
@@ -1469,6 +1376,21 @@ nodes:
 
           $1
           ^^
+  - name: OperatorWriteNode
+    child_nodes:
+      - name: target
+        type: node
+      - name: operator_loc
+        type: location
+      - name: operator
+        type: constant
+      - name: value
+        type: node
+    comment: |
+      Represents the use of an operator on a write.
+
+          target += value
+          ^^^^^^^^^^^^^^^
   - name: OptionalParameterNode
     child_nodes:
       - name: constant_id
diff --git a/yarp/yarp.c b/yarp/yarp.c
index 4718f59c4a..74c910b080 100644
--- a/yarp/yarp.c
+++ b/yarp/yarp.c
@@ -1506,28 +1506,6 @@ yp_class_node_create(yp_parser_t *parser, yp_constant_id_list_t *locals, const y
     return node;
 }
 
-// Allocate and initialize a new ClassVariableOperatorWriteNode node.
-static yp_class_variable_operator_write_node_t *
-yp_class_variable_operator_write_node_create(yp_parser_t *parser, yp_node_t *target, const yp_token_t *operator, yp_node_t *value) {
-    yp_class_variable_operator_write_node_t *node = YP_ALLOC_NODE(parser, yp_class_variable_operator_write_node_t);
-
-    *node = (yp_class_variable_operator_write_node_t) {
-        {
-            .type = YP_NODE_CLASS_VARIABLE_OPERATOR_WRITE_NODE,
-            .location = {
-                .start = target->location.start,
-                .end = value->location.end
-            }
-        },
-        .name_loc = target->location,
-        .operator_loc = YP_LOCATION_TOKEN_VALUE(operator),
-        .value = value,
-        .operator = yp_parser_constant_id_location(parser, operator->start, operator->end - 1)
-    };
-
-    return node;
-}
-
 // Allocate and initialize a new ClassVariableReadNode node.
 static yp_class_variable_read_node_t *
 yp_class_variable_read_node_create(yp_parser_t *parser, const yp_token_t *token) {
@@ -1558,28 +1536,6 @@ yp_class_variable_read_node_to_class_variable_write_node(yp_parser_t *parser, yp
     return node;
 }
 
-// Allocate and initialize a new ConstantPathOperatorWriteNode node.
-static yp_constant_path_operator_write_node_t *
-yp_constant_path_operator_write_node_create(yp_parser_t *parser, yp_constant_path_node_t *target, const yp_token_t *operator, yp_node_t *value) {
-    yp_constant_path_operator_write_node_t *node = YP_ALLOC_NODE(parser, yp_constant_path_operator_write_node_t);
-
-    *node = (yp_constant_path_operator_write_node_t) {
-        {
-            .type = YP_NODE_CONSTANT_PATH_OPERATOR_WRITE_NODE,
-            .location = {
-                .start = target->base.location.start,
-                .end = value->location.end
-            }
-        },
-        .target = target,
-        .operator_loc = YP_LOCATION_TOKEN_VALUE(operator),
-        .value = value,
-        .operator = yp_parser_constant_id_location(parser, operator->start, operator->end - 1)
-    };
-
-    return node;
-}
-
 // Allocate and initialize a new ConstantPathNode node.
 static yp_constant_path_node_t *
 yp_constant_path_node_create(yp_parser_t *parser, yp_node_t *parent, const yp_token_t *delimiter, yp_node_t *child) {
@@ -1622,28 +1578,6 @@ yp_constant_path_write_node_create(yp_parser_t *parser, yp_constant_path_node_t
     return node;
 }
 
-// Allocate and initialize a new ConstantOperatorWriteNode node.
-static yp_constant_operator_write_node_t *
-yp_constant_operator_write_node_create(yp_parser_t *parser, yp_node_t *target, const yp_token_t *operator, yp_node_t *value) {
-    yp_constant_operator_write_node_t *node = YP_ALLOC_NODE(parser, yp_constant_operator_write_node_t);
-
-    *node = (yp_constant_operator_write_node_t) {
-        {
-            .type = YP_NODE_CONSTANT_OPERATOR_WRITE_NODE,
-            .location = {
-                .start = target->location.start,
-                .end = value->location.end
-            }
-        },
-        .name_loc = target->location,
-        .operator_loc = YP_LOCATION_TOKEN_VALUE(operator),
-        .value = value,
-        .operator = yp_parser_constant_id_location(parser, operator->start, operator->end - 1)
-    };
-
-    return node;
-}
-
 // Allocate and initialize a new ConstantReadNode node.
 static yp_constant_read_node_t *
 yp_constant_read_node_create(yp_parser_t *parser, const yp_token_t *name) {
@@ -2078,28 +2012,6 @@ yp_hash_pattern_node_node_list_create(yp_parser_t *parser, yp_node_list_t *assoc
     return node;
 }
 
-// Allocate and initialize a new GlobalVariableOperatorWriteNode node.
-static yp_global_variable_operator_write_node_t *
-yp_global_variable_operator_write_node_create(yp_parser_t *parser, yp_node_t *target, const yp_token_t *operator, yp_node_t *value) {
-    yp_global_variable_operator_write_node_t *node = YP_ALLOC_NODE(parser, yp_global_variable_operator_write_node_t);
-
-    *node = (yp_global_variable_operator_write_node_t) {
-        {
-            .type = YP_NODE_GLOBAL_VARIABLE_OPERATOR_WRITE_NODE,
-            .location = {
-                .start = target->location.start,
-                .end = value->location.end
-            }
-        },
-        .name_loc = target->location,
-        .operator_loc = YP_LOCATION_TOKEN_VALUE(operator),
-        .value = value,
-        .operator = yp_parser_constant_id_location(parser, operator->start, operator->end - 1)
-    };
-
-    return node;
-}
-
 // Allocate a new GlobalVariableReadNode node.
 static yp_global_variable_read_node_t *
 yp_global_variable_read_node_create(yp_parser_t *parser, const yp_token_t *name) {
@@ -2390,28 +2302,6 @@ yp_in_node_create(yp_parser_t *parser, yp_node_t *pattern, yp_statements_node_t
     return node;
 }
 
-// Allocate and initialize a new InstanceVariableOperatorWriteNode node.
-static yp_instance_variable_operator_write_node_t *
-yp_instance_variable_operator_write_node_create(yp_parser_t *parser, yp_node_t *target, const yp_token_t *operator, yp_node_t *value) {
-    yp_instance_variable_operator_write_node_t *node = YP_ALLOC_NODE(parser, yp_instance_variable_operator_write_node_t);
-
-    *node = (yp_instance_variable_operator_write_node_t) {
-        {
-            .type = YP_NODE_INSTANCE_VARIABLE_OPERATOR_WRITE_NODE,
-            .location = {
-                .start = target->location.start,
-                .end = value->location.end
-            }
-        },
-        .name_loc = target->location,
-        .operator_loc = YP_LOCATION_TOKEN_VALUE(operator),
-        .value = value,
-        .operator = yp_parser_constant_id_location(parser, operator->start, operator->end - 1)
-    };
-
-    return node;
-}
-
 // Allocate and initialize a new InstanceVariableReadNode node.
 static yp_instance_variable_read_node_t *
 yp_instance_variable_read_node_create(yp_parser_t *parser, const yp_token_t *token) {
@@ -2685,29 +2575,6 @@ yp_lambda_node_create(
     return node;
 }
 
-// Allocate and initialize a new LocalVariableOperatorWriteNode node.
-static yp_local_variable_operator_write_node_t *
-yp_local_variable_operator_write_node_create(yp_parser_t *parser, yp_node_t *target, const yp_token_t *operator, yp_node_t *value, yp_constant_id_t constant_id) {
-    yp_local_variable_operator_write_node_t *node = YP_ALLOC_NODE(parser, yp_local_variable_operator_write_node_t);
-
-    *node = (yp_local_variable_operator_write_node_t) {
-        {
-            .type = YP_NODE_LOCAL_VARIABLE_OPERATOR_WRITE_NODE,
-            .location = {
-                .start = target->location.start,
-                .end = value->location.end
-            }
-        },
-        .name_loc = target->location,
-        .operator_loc = YP_LOCATION_TOKEN_VALUE(operator),
-        .value = value,
-        .constant_id = constant_id,
-        .operator_id = yp_parser_constant_id_location(parser, operator->start, operator->end - 1)
-    };
-
-    return node;
-}
-
 // Allocate a new LocalVariableReadNode node.
 static yp_local_variable_read_node_t *
 yp_local_variable_read_node_create(yp_parser_t *parser, const yp_token_t *name, uint32_t depth) {
@@ -2941,6 +2808,28 @@ yp_numbered_reference_read_node_create(yp_parser_t *parser, const yp_token_t *na
     return node;
 }
 
+// Allocate and initialize a new OperatorWriteNode.
+static yp_operator_write_node_t *
+yp_operator_write_node_create(yp_parser_t *parser, yp_node_t *target, const yp_token_t *operator, yp_node_t *value) {
+    yp_operator_write_node_t *node = YP_ALLOC_NODE(parser, yp_operator_write_node_t);
+
+    *node = (yp_operator_write_node_t) {
+        {
+            .type = YP_NODE_OPERATOR_WRITE_NODE,
+            .location = {
+                .start = target->location.start,
+                .end = value->location.end
+            },
+        },
+        .target = target,
+        .operator_loc = YP_LOCATION_TOKEN_VALUE(operator),
+        .operator = yp_parser_constant_id_location(parser, operator->start, operator->end - 1),
+        .value = value
+    };
+
+    return node;
+}
+
 // Allocate a new OptionalParameterNode node.
 static yp_optional_parameter_node_t *
 yp_optional_parameter_node_create(yp_parser_t *parser, const yp_token_t *name, const yp_token_t *operator, yp_node_t *value) {
@@ -12351,14 +12240,16 @@ parse_expression_infix(yp_parser_t *parser, yp_node_t *node, yp_binding_power_t
                 case YP_NODE_NUMBERED_REFERENCE_READ_NODE:
                     yp_diagnostic_list_append(&parser->error_list, node->location.start, node->location.end, "Can't set variable");
                 /* fallthrough */
-                case YP_NODE_GLOBAL_VARIABLE_READ_NODE: {
+                case YP_NODE_CLASS_VARIABLE_READ_NODE:
+                case YP_NODE_CONSTANT_PATH_NODE:
+                case YP_NODE_CONSTANT_READ_NODE:
+                case YP_NODE_GLOBAL_VARIABLE_READ_NODE:
+                case YP_NODE_INSTANCE_VARIABLE_READ_NODE:
+                case YP_NODE_LOCAL_VARIABLE_READ_NODE: {
                     parser_lex(parser);
 
                     yp_node_t *value = parse_expression(parser, binding_power, "Expected a value after the operator");
-                    yp_node_t *result = (yp_node_t *) yp_global_variable_operator_write_node_create(parser, node, &token, value);
-
-                    yp_node_destroy(parser, node);
-                    return result;
+                    return (yp_node_t *) yp_operator_write_node_create(parser, node, &token, value);
                 }
                 case YP_NODE_CALL_NODE: {
                     yp_call_node_t *call_node = (yp_call_node_t *) node;
@@ -12375,13 +12266,11 @@ parse_expression_infix(yp_parser_t *parser, yp_node_t *node, yp_binding_power_t
                         }
 
                         parser_lex(parser);
-
+                        yp_node_t *target = (yp_node_t *) yp_local_variable_read_node_create(parser, &(yp_token_t) { .type = YP_TOKEN_IDENTIFIER, .start = message_loc.start, .end = message_loc.end }, 0);
                         yp_node_t *value = parse_expression(parser, binding_power, "Expected a value after &&=");
-                        yp_constant_id_t constant_id = yp_parser_constant_id_location(parser, message_loc.start, message_loc.end);
-                        yp_node_t *result = (yp_node_t *) yp_local_variable_operator_write_node_create(parser, node, &token, value, constant_id);
 
                         yp_node_destroy(parser, node);
-                        return result;
+                        return (yp_node_t *) yp_operator_write_node_create(parser, target, &token, value);
                     }
 
                     yp_token_t operator = not_provided(parser);
@@ -12391,49 +12280,6 @@ parse_expression_infix(yp_parser_t *parser, yp_node_t *node, yp_binding_power_t
                     yp_node_t *value = parse_expression(parser, binding_power, "Expected a value after the operator.");
                     return (yp_node_t *) yp_call_operator_write_node_create(parser, (yp_call_node_t *) node, &token, value);
                 }
-                case YP_NODE_CLASS_VARIABLE_READ_NODE: {
-                    parser_lex(parser);
-
-                    yp_node_t *value = parse_expression(parser, binding_power, "Expected a value after the operator.");
-                    yp_node_t *result = (yp_node_t *) yp_class_variable_operator_write_node_create(parser, node, &token, value);
-
-                    yp_node_destroy(parser, node);
-                    return result;
-                }
-                case YP_NODE_CONSTANT_PATH_NODE: {
-                    parser_lex(parser);
-
-                    yp_node_t *value = parse_expression(parser, binding_power, "Expected a value after the operator.");
-                    return (yp_node_t *) yp_constant_path_operator_write_node_create(parser, (yp_constant_path_node_t *) node, &token, value);
-                }
-                case YP_NODE_CONSTANT_READ_NODE: {
-                    parser_lex(parser);
-
-                    yp_node_t *value = parse_expression(parser, binding_power, "Expected a value after the operator.");
-                    yp_node_t *result = (yp_node_t *) yp_constant_operator_write_node_create(parser, node, &token, value);
-
-                    yp_node_destroy(parser, node);
-                    return result;
-                }
-                case YP_NODE_INSTANCE_VARIABLE_READ_NODE: {
-                    parser_lex(parser);
-
-                    yp_node_t *value = parse_expression(parser, binding_power, "Expected a value after the operator.");
-                    yp_node_t *result = (yp_node_t *) yp_instance_variable_operator_write_node_create(parser, node, &token, value);
-
-                    yp_node_destroy(parser, node);
-                    return result;
-                }
-                case YP_NODE_LOCAL_VARIABLE_READ_NODE: {
-                    parser_lex(parser);
-
-                    yp_node_t *value = parse_expression(parser, binding_power, "Expected a value after the operator.");
-                    yp_constant_id_t constant_id = ((yp_local_variable_read_node_t *) node)->constant_id;
-                    yp_node_t *result = (yp_node_t *) yp_local_variable_operator_write_node_create(parser, node, &token, value, constant_id);
-
-                    yp_node_destroy(parser, node);
-                    return result;
-                }
                 case YP_NODE_MULTI_WRITE_NODE: {
                     parser_lex(parser);
                     yp_diagnostic_list_append(&parser->error_list, token.start, token.end, "Unexpected operator.");