From 7f1df9d0b31413e59846cc955d2a955d3f361e2a Mon Sep 17 00:00:00 2001
From: Yong He <yonghe@outlook.com>
Date: Wed, 30 Apr 2025 14:17:45 -0700
Subject: Initial support for immutable lambda expressions. (#6914)

* Initial support for immutable lambda expressions.

* More diagnostics, and langauge server fix.

* Language server fix.

* Fix bug identified in review.

* Add expected result.

* Update expected result.
---
 source/compiler-core/slang-lexer.cpp    | 3 +++
 source/compiler-core/slang-token-defs.h | 1 +
 2 files changed, 4 insertions(+)

(limited to 'source/compiler-core')

diff --git a/source/compiler-core/slang-lexer.cpp b/source/compiler-core/slang-lexer.cpp
index c2ee5cd69..d19ea388d 100644
--- a/source/compiler-core/slang-lexer.cpp
+++ b/source/compiler-core/slang-lexer.cpp
@@ -1515,6 +1515,9 @@ static TokenType _lexTokenImpl(Lexer* lexer)
         case '=':
             _advance(lexer);
             return TokenType::OpEql;
+        case '>':
+            _advance(lexer);
+            return TokenType::DoubleRightArrow;
         default:
             return TokenType::OpAssign;
         }
diff --git a/source/compiler-core/slang-token-defs.h b/source/compiler-core/slang-token-defs.h
index fea90b3ee..6fc80c602 100644
--- a/source/compiler-core/slang-token-defs.h
+++ b/source/compiler-core/slang-token-defs.h
@@ -82,6 +82,7 @@ PUNCTUATION(OpXorAssign, "^=")
 PUNCTUATION(QuestionMark, "?")
 PUNCTUATION(Colon, ":")
 PUNCTUATION(RightArrow, "->")
+PUNCTUATION(DoubleRightArrow, "=>")
 PUNCTUATION(At, "@")
 PUNCTUATION(Dollar, "$")
 PUNCTUATION(DollarDollar, "$$")
-- 
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