[ruby/prism] Fix up it indirect writes

Fixes [Bug #21137]

https://github.com/ruby/prism/commit/ca493e6797

3 files changed, 477 insertions, 2 deletions

diff --git a/prism/prism.c b/prism/prism.c
index ffa5d3ddc4..7f0c696749 100644
--- a/prism/prism.c
+++ b/prism/prism.c
@@ -5662,7 +5662,7 @@ pm_lambda_node_create(
  */
 static pm_local_variable_and_write_node_t *
 pm_local_variable_and_write_node_create(pm_parser_t *parser, pm_node_t *target, const pm_token_t *operator, pm_node_t *value, pm_constant_id_t name, uint32_t depth) {
-    assert(PM_NODE_TYPE_P(target, PM_LOCAL_VARIABLE_READ_NODE) || PM_NODE_TYPE_P(target, PM_CALL_NODE));
+    assert(PM_NODE_TYPE_P(target, PM_LOCAL_VARIABLE_READ_NODE) || PM_NODE_TYPE_P(target, PM_IT_LOCAL_VARIABLE_READ_NODE) || PM_NODE_TYPE_P(target, PM_CALL_NODE));
     assert(operator->type == PM_TOKEN_AMPERSAND_AMPERSAND_EQUAL);
     pm_local_variable_and_write_node_t *node = PM_NODE_ALLOC(parser, pm_local_variable_and_write_node_t);
 
@@ -5717,7 +5717,7 @@ pm_local_variable_operator_write_node_create(pm_parser_t *parser, pm_node_t *tar
  */
 static pm_local_variable_or_write_node_t *
 pm_local_variable_or_write_node_create(pm_parser_t *parser, pm_node_t *target, const pm_token_t *operator, pm_node_t *value, pm_constant_id_t name, uint32_t depth) {
-    assert(PM_NODE_TYPE_P(target, PM_LOCAL_VARIABLE_READ_NODE) || PM_NODE_TYPE_P(target, PM_CALL_NODE));
+    assert(PM_NODE_TYPE_P(target, PM_LOCAL_VARIABLE_READ_NODE) || PM_NODE_TYPE_P(target, PM_IT_LOCAL_VARIABLE_READ_NODE) || PM_NODE_TYPE_P(target, PM_CALL_NODE));
     assert(operator->type == PM_TOKEN_PIPE_PIPE_EQUAL);
     pm_local_variable_or_write_node_t *node = PM_NODE_ALLOC(parser, pm_local_variable_or_write_node_t);
 
@@ -21218,6 +21218,17 @@ parse_expression_infix(pm_parser_t *parser, pm_node_t *node, pm_binding_power_t
                     pm_node_destroy(parser, node);
                     return result;
                 }
+                case PM_IT_LOCAL_VARIABLE_READ_NODE: {
+                    pm_constant_id_t name = pm_parser_local_add_constant(parser, "it", 2);
+                    parser_lex(parser);
+
+                    pm_node_t *value = parse_assignment_value(parser, previous_binding_power, binding_power, accepts_command_call, PM_ERR_EXPECT_EXPRESSION_AFTER_AMPAMPEQ, (uint16_t) (depth + 1));
+                    pm_node_t *result = (pm_node_t *) pm_local_variable_and_write_node_create(parser, node, &token, value, name, 0);
+
+                    parse_target_implicit_parameter(parser, node);
+                    pm_node_destroy(parser, node);
+                    return result;
+                }
                 case PM_LOCAL_VARIABLE_READ_NODE: {
                     if (pm_token_is_numbered_parameter(node->location.start, node->location.end)) {
                         PM_PARSER_ERR_FORMAT(parser, node->location.start, node->location.end, PM_ERR_PARAMETER_NUMBERED_RESERVED, node->location.start);
@@ -21341,6 +21352,17 @@ parse_expression_infix(pm_parser_t *parser, pm_node_t *node, pm_binding_power_t
                     pm_node_destroy(parser, node);
                     return result;
                 }
+                case PM_IT_LOCAL_VARIABLE_READ_NODE: {
+                    pm_constant_id_t name = pm_parser_local_add_constant(parser, "it", 2);
+                    parser_lex(parser);
+
+                    pm_node_t *value = parse_assignment_value(parser, previous_binding_power, binding_power, accepts_command_call, PM_ERR_EXPECT_EXPRESSION_AFTER_PIPEPIPEEQ, (uint16_t) (depth + 1));
+                    pm_node_t *result = (pm_node_t *) pm_local_variable_or_write_node_create(parser, node, &token, value, name, 0);
+
+                    parse_target_implicit_parameter(parser, node);
+                    pm_node_destroy(parser, node);
+                    return result;
+                }
                 case PM_LOCAL_VARIABLE_READ_NODE: {
                     if (pm_token_is_numbered_parameter(node->location.start, node->location.end)) {
                         PM_PARSER_ERR_FORMAT(parser, node->location.start, node->location.end, PM_ERR_PARAMETER_NUMBERED_RESERVED, node->location.start);
@@ -21474,6 +21496,17 @@ parse_expression_infix(pm_parser_t *parser, pm_node_t *node, pm_binding_power_t
                     pm_node_destroy(parser, node);
                     return result;
                 }
+                case PM_IT_LOCAL_VARIABLE_READ_NODE: {
+                    pm_constant_id_t name = pm_parser_local_add_constant(parser, "it", 2);
+                    parser_lex(parser);
+
+                    pm_node_t *value = parse_assignment_value(parser, previous_binding_power, binding_power, accepts_command_call, PM_ERR_EXPECT_EXPRESSION_AFTER_OPERATOR, (uint16_t) (depth + 1));
+                    pm_node_t *result = (pm_node_t *) pm_local_variable_operator_write_node_create(parser, node, &token, value, name, 0);
+
+                    parse_target_implicit_parameter(parser, node);
+                    pm_node_destroy(parser, node);
+                    return result;
+                }
                 case PM_LOCAL_VARIABLE_READ_NODE: {
                     if (pm_token_is_numbered_parameter(node->location.start, node->location.end)) {
                         PM_PARSER_ERR_FORMAT(parser, node->location.start, node->location.end, PM_ERR_PARAMETER_NUMBERED_RESERVED, node->location.start);
diff --git a/test/prism/fixtures/it_indirect_writes.txt b/test/prism/fixtures/it_indirect_writes.txt
new file mode 100644
index 0000000000..bb87e9483e
--- /dev/null
+++ b/test/prism/fixtures/it_indirect_writes.txt
@@ -0,0 +1,23 @@
+tap { it += 1 }
+
+tap { it ||= 1 }
+
+tap { it &&= 1 }
+
+tap { it; it += 1 }
+
+tap { it; it ||= 1 }
+
+tap { it; it &&= 1 }
+
+tap { it += 1; it }
+
+tap { it ||= 1; it }
+
+tap { it &&= 1; it }
+
+tap { it; it += 1; it }
+
+tap { it; it ||= 1; it }
+
+tap { it; it &&= 1; it }
diff --git a/test/prism/snapshots/it_indirect_writes.txt b/test/prism/snapshots/it_indirect_writes.txt
new file mode 100644
index 0000000000..165aececc6
--- /dev/null
+++ b/test/prism/snapshots/it_indirect_writes.txt
@@ -0,0 +1,419 @@
+@ ProgramNode (location: (1,0)-(23,24))
+├── flags: ∅
+├── locals: []
+└── statements:
+    @ StatementsNode (location: (1,0)-(23,24))
+    ├── flags: ∅
+    └── body: (length: 12)
+        ├── @ CallNode (location: (1,0)-(1,15))
+        │   ├── flags: newline, ignore_visibility
+        │   ├── receiver: ∅
+        │   ├── call_operator_loc: ∅
+        │   ├── name: :tap
+        │   ├── message_loc: (1,0)-(1,3) = "tap"
+        │   ├── opening_loc: ∅
+        │   ├── arguments: ∅
+        │   ├── closing_loc: ∅
+        │   └── block:
+        │       @ BlockNode (location: (1,4)-(1,15))
+        │       ├── flags: ∅
+        │       ├── locals: [:it]
+        │       ├── parameters: ∅
+        │       ├── body:
+        │       │   @ StatementsNode (location: (1,6)-(1,13))
+        │       │   ├── flags: ∅
+        │       │   └── body: (length: 1)
+        │       │       └── @ LocalVariableOperatorWriteNode (location: (1,6)-(1,13))
+        │       │           ├── flags: newline
+        │       │           ├── name_loc: (1,6)-(1,8) = "it"
+        │       │           ├── binary_operator_loc: (1,9)-(1,11) = "+="
+        │       │           ├── value:
+        │       │           │   @ IntegerNode (location: (1,12)-(1,13))
+        │       │           │   ├── flags: static_literal, decimal
+        │       │           │   └── value: 1
+        │       │           ├── name: :it
+        │       │           ├── binary_operator: :+
+        │       │           └── depth: 0
+        │       ├── opening_loc: (1,4)-(1,5) = "{"
+        │       └── closing_loc: (1,14)-(1,15) = "}"
+        ├── @ CallNode (location: (3,0)-(3,16))
+        │   ├── flags: newline, ignore_visibility
+        │   ├── receiver: ∅
+        │   ├── call_operator_loc: ∅
+        │   ├── name: :tap
+        │   ├── message_loc: (3,0)-(3,3) = "tap"
+        │   ├── opening_loc: ∅
+        │   ├── arguments: ∅
+        │   ├── closing_loc: ∅
+        │   └── block:
+        │       @ BlockNode (location: (3,4)-(3,16))
+        │       ├── flags: ∅
+        │       ├── locals: [:it]
+        │       ├── parameters: ∅
+        │       ├── body:
+        │       │   @ StatementsNode (location: (3,6)-(3,14))
+        │       │   ├── flags: ∅
+        │       │   └── body: (length: 1)
+        │       │       └── @ LocalVariableOrWriteNode (location: (3,6)-(3,14))
+        │       │           ├── flags: newline
+        │       │           ├── name_loc: (3,6)-(3,8) = "it"
+        │       │           ├── operator_loc: (3,9)-(3,12) = "||="
+        │       │           ├── value:
+        │       │           │   @ IntegerNode (location: (3,13)-(3,14))
+        │       │           │   ├── flags: static_literal, decimal
+        │       │           │   └── value: 1
+        │       │           ├── name: :it
+        │       │           └── depth: 0
+        │       ├── opening_loc: (3,4)-(3,5) = "{"
+        │       └── closing_loc: (3,15)-(3,16) = "}"
+        ├── @ CallNode (location: (5,0)-(5,16))
+        │   ├── flags: newline, ignore_visibility
+        │   ├── receiver: ∅
+        │   ├── call_operator_loc: ∅
+        │   ├── name: :tap
+        │   ├── message_loc: (5,0)-(5,3) = "tap"
+        │   ├── opening_loc: ∅
+        │   ├── arguments: ∅
+        │   ├── closing_loc: ∅
+        │   └── block:
+        │       @ BlockNode (location: (5,4)-(5,16))
+        │       ├── flags: ∅
+        │       ├── locals: [:it]
+        │       ├── parameters: ∅
+        │       ├── body:
+        │       │   @ StatementsNode (location: (5,6)-(5,14))
+        │       │   ├── flags: ∅
+        │       │   └── body: (length: 1)
+        │       │       └── @ LocalVariableAndWriteNode (location: (5,6)-(5,14))
+        │       │           ├── flags: newline
+        │       │           ├── name_loc: (5,6)-(5,8) = "it"
+        │       │           ├── operator_loc: (5,9)-(5,12) = "&&="
+        │       │           ├── value:
+        │       │           │   @ IntegerNode (location: (5,13)-(5,14))
+        │       │           │   ├── flags: static_literal, decimal
+        │       │           │   └── value: 1
+        │       │           ├── name: :it
+        │       │           └── depth: 0
+        │       ├── opening_loc: (5,4)-(5,5) = "{"
+        │       └── closing_loc: (5,15)-(5,16) = "}"
+        ├── @ CallNode (location: (7,0)-(7,19))
+        │   ├── flags: newline, ignore_visibility
+        │   ├── receiver: ∅
+        │   ├── call_operator_loc: ∅
+        │   ├── name: :tap
+        │   ├── message_loc: (7,0)-(7,3) = "tap"
+        │   ├── opening_loc: ∅
+        │   ├── arguments: ∅
+        │   ├── closing_loc: ∅
+        │   └── block:
+        │       @ BlockNode (location: (7,4)-(7,19))
+        │       ├── flags: ∅
+        │       ├── locals: [:it]
+        │       ├── parameters:
+        │       │   @ ItParametersNode (location: (7,4)-(7,19))
+        │       │   └── flags: ∅
+        │       ├── body:
+        │       │   @ StatementsNode (location: (7,6)-(7,17))
+        │       │   ├── flags: ∅
+        │       │   └── body: (length: 2)
+        │       │       ├── @ ItLocalVariableReadNode (location: (7,6)-(7,8))
+        │       │       │   └── flags: newline
+        │       │       └── @ LocalVariableOperatorWriteNode (location: (7,10)-(7,17))
+        │       │           ├── flags: newline
+        │       │           ├── name_loc: (7,10)-(7,12) = "it"
+        │       │           ├── binary_operator_loc: (7,13)-(7,15) = "+="
+        │       │           ├── value:
+        │       │           │   @ IntegerNode (location: (7,16)-(7,17))
+        │       │           │   ├── flags: static_literal, decimal
+        │       │           │   └── value: 1
+        │       │           ├── name: :it
+        │       │           ├── binary_operator: :+
+        │       │           └── depth: 0
+        │       ├── opening_loc: (7,4)-(7,5) = "{"
+        │       └── closing_loc: (7,18)-(7,19) = "}"
+        ├── @ CallNode (location: (9,0)-(9,20))
+        │   ├── flags: newline, ignore_visibility
+        │   ├── receiver: ∅
+        │   ├── call_operator_loc: ∅
+        │   ├── name: :tap
+        │   ├── message_loc: (9,0)-(9,3) = "tap"
+        │   ├── opening_loc: ∅
+        │   ├── arguments: ∅
+        │   ├── closing_loc: ∅
+        │   └── block:
+        │       @ BlockNode (location: (9,4)-(9,20))
+        │       ├── flags: ∅
+        │       ├── locals: [:it]
+        │       ├── parameters:
+        │       │   @ ItParametersNode (location: (9,4)-(9,20))
+        │       │   └── flags: ∅
+        │       ├── body:
+        │       │   @ StatementsNode (location: (9,6)-(9,18))
+        │       │   ├── flags: ∅
+        │       │   └── body: (length: 2)
+        │       │       ├── @ ItLocalVariableReadNode (location: (9,6)-(9,8))
+        │       │       │   └── flags: newline
+        │       │       └── @ LocalVariableOrWriteNode (location: (9,10)-(9,18))
+        │       │           ├── flags: newline
+        │       │           ├── name_loc: (9,10)-(9,12) = "it"
+        │       │           ├── operator_loc: (9,13)-(9,16) = "||="
+        │       │           ├── value:
+        │       │           │   @ IntegerNode (location: (9,17)-(9,18))
+        │       │           │   ├── flags: static_literal, decimal
+        │       │           │   └── value: 1
+        │       │           ├── name: :it
+        │       │           └── depth: 0
+        │       ├── opening_loc: (9,4)-(9,5) = "{"
+        │       └── closing_loc: (9,19)-(9,20) = "}"
+        ├── @ CallNode (location: (11,0)-(11,20))
+        │   ├── flags: newline, ignore_visibility
+        │   ├── receiver: ∅
+        │   ├── call_operator_loc: ∅
+        │   ├── name: :tap
+        │   ├── message_loc: (11,0)-(11,3) = "tap"
+        │   ├── opening_loc: ∅
+        │   ├── arguments: ∅
+        │   ├── closing_loc: ∅
+        │   └── block:
+        │       @ BlockNode (location: (11,4)-(11,20))
+        │       ├── flags: ∅
+        │       ├── locals: [:it]
+        │       ├── parameters:
+        │       │   @ ItParametersNode (location: (11,4)-(11,20))
+        │       │   └── flags: ∅
+        │       ├── body:
+        │       │   @ StatementsNode (location: (11,6)-(11,18))
+        │       │   ├── flags: ∅
+        │       │   └── body: (length: 2)
+        │       │       ├── @ ItLocalVariableReadNode (location: (11,6)-(11,8))
+        │       │       │   └── flags: newline
+        │       │       └── @ LocalVariableAndWriteNode (location: (11,10)-(11,18))
+        │       │           ├── flags: newline
+        │       │           ├── name_loc: (11,10)-(11,12) = "it"
+        │       │           ├── operator_loc: (11,13)-(11,16) = "&&="
+        │       │           ├── value:
+        │       │           │   @ IntegerNode (location: (11,17)-(11,18))
+        │       │           │   ├── flags: static_literal, decimal
+        │       │           │   └── value: 1
+        │       │           ├── name: :it
+        │       │           └── depth: 0
+        │       ├── opening_loc: (11,4)-(11,5) = "{"
+        │       └── closing_loc: (11,19)-(11,20) = "}"
+        ├── @ CallNode (location: (13,0)-(13,19))
+        │   ├── flags: newline, ignore_visibility
+        │   ├── receiver: ∅
+        │   ├── call_operator_loc: ∅
+        │   ├── name: :tap
+        │   ├── message_loc: (13,0)-(13,3) = "tap"
+        │   ├── opening_loc: ∅
+        │   ├── arguments: ∅
+        │   ├── closing_loc: ∅
+        │   └── block:
+        │       @ BlockNode (location: (13,4)-(13,19))
+        │       ├── flags: ∅
+        │       ├── locals: [:it]
+        │       ├── parameters: ∅
+        │       ├── body:
+        │       │   @ StatementsNode (location: (13,6)-(13,17))
+        │       │   ├── flags: ∅
+        │       │   └── body: (length: 2)
+        │       │       ├── @ LocalVariableOperatorWriteNode (location: (13,6)-(13,13))
+        │       │       │   ├── flags: newline
+        │       │       │   ├── name_loc: (13,6)-(13,8) = "it"
+        │       │       │   ├── binary_operator_loc: (13,9)-(13,11) = "+="
+        │       │       │   ├── value:
+        │       │       │   │   @ IntegerNode (location: (13,12)-(13,13))
+        │       │       │   │   ├── flags: static_literal, decimal
+        │       │       │   │   └── value: 1
+        │       │       │   ├── name: :it
+        │       │       │   ├── binary_operator: :+
+        │       │       │   └── depth: 0
+        │       │       └── @ LocalVariableReadNode (location: (13,15)-(13,17))
+        │       │           ├── flags: newline
+        │       │           ├── name: :it
+        │       │           └── depth: 0
+        │       ├── opening_loc: (13,4)-(13,5) = "{"
+        │       └── closing_loc: (13,18)-(13,19) = "}"
+        ├── @ CallNode (location: (15,0)-(15,20))
+        │   ├── flags: newline, ignore_visibility
+        │   ├── receiver: ∅
+        │   ├── call_operator_loc: ∅
+        │   ├── name: :tap
+        │   ├── message_loc: (15,0)-(15,3) = "tap"
+        │   ├── opening_loc: ∅
+        │   ├── arguments: ∅
+        │   ├── closing_loc: ∅
+        │   └── block:
+        │       @ BlockNode (location: (15,4)-(15,20))
+        │       ├── flags: ∅
+        │       ├── locals: [:it]
+        │       ├── parameters: ∅
+        │       ├── body:
+        │       │   @ StatementsNode (location: (15,6)-(15,18))
+        │       │   ├── flags: ∅
+        │       │   └── body: (length: 2)
+        │       │       ├── @ LocalVariableOrWriteNode (location: (15,6)-(15,14))
+        │       │       │   ├── flags: newline
+        │       │       │   ├── name_loc: (15,6)-(15,8) = "it"
+        │       │       │   ├── operator_loc: (15,9)-(15,12) = "||="
+        │       │       │   ├── value:
+        │       │       │   │   @ IntegerNode (location: (15,13)-(15,14))
+        │       │       │   │   ├── flags: static_literal, decimal
+        │       │       │   │   └── value: 1
+        │       │       │   ├── name: :it
+        │       │       │   └── depth: 0
+        │       │       └── @ LocalVariableReadNode (location: (15,16)-(15,18))
+        │       │           ├── flags: newline
+        │       │           ├── name: :it
+        │       │           └── depth: 0
+        │       ├── opening_loc: (15,4)-(15,5) = "{"
+        │       └── closing_loc: (15,19)-(15,20) = "}"
+        ├── @ CallNode (location: (17,0)-(17,20))
+        │   ├── flags: newline, ignore_visibility
+        │   ├── receiver: ∅
+        │   ├── call_operator_loc: ∅
+        │   ├── name: :tap
+        │   ├── message_loc: (17,0)-(17,3) = "tap"
+        │   ├── opening_loc: ∅
+        │   ├── arguments: ∅
+        │   ├── closing_loc: ∅
+        │   └── block:
+        │       @ BlockNode (location: (17,4)-(17,20))
+        │       ├── flags: ∅
+        │       ├── locals: [:it]
+        │       ├── parameters: ∅
+        │       ├── body:
+        │       │   @ StatementsNode (location: (17,6)-(17,18))
+        │       │   ├── flags: ∅
+        │       │   └── body: (length: 2)
+        │       │       ├── @ LocalVariableAndWriteNode (location: (17,6)-(17,14))
+        │       │       │   ├── flags: newline
+        │       │       │   ├── name_loc: (17,6)-(17,8) = "it"
+        │       │       │   ├── operator_loc: (17,9)-(17,12) = "&&="
+        │       │       │   ├── value:
+        │       │       │   │   @ IntegerNode (location: (17,13)-(17,14))
+        │       │       │   │   ├── flags: static_literal, decimal
+        │       │       │   │   └── value: 1
+        │       │       │   ├── name: :it
+        │       │       │   └── depth: 0
+        │       │       └── @ LocalVariableReadNode (location: (17,16)-(17,18))
+        │       │           ├── flags: newline
+        │       │           ├── name: :it
+        │       │           └── depth: 0
+        │       ├── opening_loc: (17,4)-(17,5) = "{"
+        │       └── closing_loc: (17,19)-(17,20) = "}"
+        ├── @ CallNode (location: (19,0)-(19,23))
+        │   ├── flags: newline, ignore_visibility
+        │   ├── receiver: ∅
+        │   ├── call_operator_loc: ∅
+        │   ├── name: :tap
+        │   ├── message_loc: (19,0)-(19,3) = "tap"
+        │   ├── opening_loc: ∅
+        │   ├── arguments: ∅
+        │   ├── closing_loc: ∅
+        │   └── block:
+        │       @ BlockNode (location: (19,4)-(19,23))
+        │       ├── flags: ∅
+        │       ├── locals: [:it]
+        │       ├── parameters:
+        │       │   @ ItParametersNode (location: (19,4)-(19,23))
+        │       │   └── flags: ∅
+        │       ├── body:
+        │       │   @ StatementsNode (location: (19,6)-(19,21))
+        │       │   ├── flags: ∅
+        │       │   └── body: (length: 3)
+        │       │       ├── @ ItLocalVariableReadNode (location: (19,6)-(19,8))
+        │       │       │   └── flags: newline
+        │       │       ├── @ LocalVariableOperatorWriteNode (location: (19,10)-(19,17))
+        │       │       │   ├── flags: newline
+        │       │       │   ├── name_loc: (19,10)-(19,12) = "it"
+        │       │       │   ├── binary_operator_loc: (19,13)-(19,15) = "+="
+        │       │       │   ├── value:
+        │       │       │   │   @ IntegerNode (location: (19,16)-(19,17))
+        │       │       │   │   ├── flags: static_literal, decimal
+        │       │       │   │   └── value: 1
+        │       │       │   ├── name: :it
+        │       │       │   ├── binary_operator: :+
+        │       │       │   └── depth: 0
+        │       │       └── @ LocalVariableReadNode (location: (19,19)-(19,21))
+        │       │           ├── flags: newline
+        │       │           ├── name: :it
+        │       │           └── depth: 0
+        │       ├── opening_loc: (19,4)-(19,5) = "{"
+        │       └── closing_loc: (19,22)-(19,23) = "}"
+        ├── @ CallNode (location: (21,0)-(21,24))
+        │   ├── flags: newline, ignore_visibility
+        │   ├── receiver: ∅
+        │   ├── call_operator_loc: ∅
+        │   ├── name: :tap
+        │   ├── message_loc: (21,0)-(21,3) = "tap"
+        │   ├── opening_loc: ∅
+        │   ├── arguments: ∅
+        │   ├── closing_loc: ∅
+        │   └── block:
+        │       @ BlockNode (location: (21,4)-(21,24))
+        │       ├── flags: ∅
+        │       ├── locals: [:it]
+        │       ├── parameters:
+        │       │   @ ItParametersNode (location: (21,4)-(21,24))
+        │       │   └── flags: ∅
+        │       ├── body:
+        │       │   @ StatementsNode (location: (21,6)-(21,22))
+        │       │   ├── flags: ∅
+        │       │   └── body: (length: 3)
+        │       │       ├── @ ItLocalVariableReadNode (location: (21,6)-(21,8))
+        │       │       │   └── flags: newline
+        │       │       ├── @ LocalVariableOrWriteNode (location: (21,10)-(21,18))
+        │       │       │   ├── flags: newline
+        │       │       │   ├── name_loc: (21,10)-(21,12) = "it"
+        │       │       │   ├── operator_loc: (21,13)-(21,16) = "||="
+        │       │       │   ├── value:
+        │       │       │   │   @ IntegerNode (location: (21,17)-(21,18))
+        │       │       │   │   ├── flags: static_literal, decimal
+        │       │       │   │   └── value: 1
+        │       │       │   ├── name: :it
+        │       │       │   └── depth: 0
+        │       │       └── @ LocalVariableReadNode (location: (21,20)-(21,22))
+        │       │           ├── flags: newline
+        │       │           ├── name: :it
+        │       │           └── depth: 0
+        │       ├── opening_loc: (21,4)-(21,5) = "{"
+        │       └── closing_loc: (21,23)-(21,24) = "}"
+        └── @ CallNode (location: (23,0)-(23,24))
+            ├── flags: newline, ignore_visibility
+            ├── receiver: ∅
+            ├── call_operator_loc: ∅
+            ├── name: :tap
+            ├── message_loc: (23,0)-(23,3) = "tap"
+            ├── opening_loc: ∅
+            ├── arguments: ∅
+            ├── closing_loc: ∅
+            └── block:
+                @ BlockNode (location: (23,4)-(23,24))
+                ├── flags: ∅
+                ├── locals: [:it]
+                ├── parameters:
+                │   @ ItParametersNode (location: (23,4)-(23,24))
+                │   └── flags: ∅
+                ├── body:
+                │   @ StatementsNode (location: (23,6)-(23,22))
+                │   ├── flags: ∅
+                │   └── body: (length: 3)
+                │       ├── @ ItLocalVariableReadNode (location: (23,6)-(23,8))
+                │       │   └── flags: newline
+                │       ├── @ LocalVariableAndWriteNode (location: (23,10)-(23,18))
+                │       │   ├── flags: newline
+                │       │   ├── name_loc: (23,10)-(23,12) = "it"
+                │       │   ├── operator_loc: (23,13)-(23,16) = "&&="
+                │       │   ├── value:
+                │       │   │   @ IntegerNode (location: (23,17)-(23,18))
+                │       │   │   ├── flags: static_literal, decimal
+                │       │   │   └── value: 1
+                │       │   ├── name: :it
+                │       │   └── depth: 0
+                │       └── @ LocalVariableReadNode (location: (23,20)-(23,22))
+                │           ├── flags: newline
+                │           ├── name: :it
+                │           └── depth: 0
+                ├── opening_loc: (23,4)-(23,5) = "{"
+                └── closing_loc: (23,23)-(23,24) = "}"