From 0dc35f0d3027413d7fd7f73d6be1d7ea99cf156e Mon Sep 17 00:00:00 2001
From: Haldun Bayhantopcu <haldun@github.com>
Date: Fri, 8 Nov 2024 18:26:50 +0100
Subject: [PATCH] [ruby/prism] Ignore newlines in labelled lambda arguments

https://github.com/ruby/prism/commit/4ce6bcf182
---
 prism/prism.c                  |  8 +++++---
 test/prism/fixtures/lambda.txt | 12 ++++++++++++
 2 files changed, 17 insertions(+), 3 deletions(-)

diff --git a/prism/prism.c b/prism/prism.c
index a15529b227..f53e0a861e 100644
--- a/prism/prism.c
+++ b/prism/prism.c
@@ -14523,6 +14523,7 @@ parse_parameters(
     bool allows_trailing_comma,
     bool allows_forwarding_parameters,
     bool accepts_blocks_in_defaults,
+    bool in_block,
     uint16_t depth
 ) {
     pm_do_loop_stack_push(parser, false);
@@ -14687,7 +14688,7 @@ parse_parameters(
                 break;
             }
             case PM_TOKEN_LABEL: {
-                if (!uses_parentheses) parser->in_keyword_arg = true;
+                if (!uses_parentheses && !in_block) parser->in_keyword_arg = true;
                 update_parameter_state(parser, &parser->current, &order);
 
                 context_push(parser, PM_CONTEXT_DEFAULT_PARAMS);
@@ -15251,6 +15252,7 @@ parse_block_parameters(
             allows_trailing_comma,
             false,
             accepts_blocks_in_defaults,
+            true,
             (uint16_t) (depth + 1)
         );
     }
@@ -19405,7 +19407,7 @@ parse_expression_prefix(pm_parser_t *parser, pm_binding_power_t binding_power, b
                     if (match1(parser, PM_TOKEN_PARENTHESIS_RIGHT)) {
                         params = NULL;
                     } else {
-                        params = parse_parameters(parser, PM_BINDING_POWER_DEFINED, true, false, true, true, (uint16_t) (depth + 1));
+                        params = parse_parameters(parser, PM_BINDING_POWER_DEFINED, true, false, true, true, false, (uint16_t) (depth + 1));
                     }
 
                     lex_state_set(parser, PM_LEX_STATE_BEG);
@@ -19430,7 +19432,7 @@ parse_expression_prefix(pm_parser_t *parser, pm_binding_power_t binding_power, b
 
                     lparen = not_provided(parser);
                     rparen = not_provided(parser);
-                    params = parse_parameters(parser, PM_BINDING_POWER_DEFINED, false, false, true, true, (uint16_t) (depth + 1));
+                    params = parse_parameters(parser, PM_BINDING_POWER_DEFINED, false, false, true, true, false, (uint16_t) (depth + 1));
 
                     context_pop(parser);
                     break;
diff --git a/test/prism/fixtures/lambda.txt b/test/prism/fixtures/lambda.txt
index 5c21eafb24..dfe833509f 100644
--- a/test/prism/fixtures/lambda.txt
+++ b/test/prism/fixtures/lambda.txt
@@ -9,3 +9,15 @@
 -> foo = bar do end
 
 -> foo: bar do end
+
+p{|a:
+b|}
+
+->(a:
+b){}
+
+->a:
+b{}
+
+->a:
+{}