From 73775947dc86f5acd410a2e9e56ca31723c809b5 Mon Sep 17 00:00:00 2001
From: jiangkaiwen <jiangkaiwen2@huawei.com>
Date: Thu, 2 Mar 2023 20:06:18 +0800
Subject: [PATCH] Es2abc supports new feature BigInt

Issue:I6J58G

Signed-off-by: jiangkaiwen <jiangkaiwen2@huawei.com>
Change-Id: I3af30e2c6d2e6f35f358d4ec0304349eeb24b881
---
 es2panda/lexer/lexer.cpp |  5 +++++
 es2panda/lexer/lexer.h   |  1 +
 test262/es2021_tests.txt | 18 ++++++++++++++++++
 3 files changed, 24 insertions(+)

diff --git a/es2panda/lexer/lexer.cpp b/es2panda/lexer/lexer.cpp
index 8b2210e8dc..6ba93184a8 100644
--- a/es2panda/lexer/lexer.cpp
+++ b/es2panda/lexer/lexer.cpp
@@ -304,6 +304,7 @@ void Lexer::ScanDecimalNumbers(bool allowNumericSeparator)
             }
             case LEX_CHAR_UNDERSCORE: {
                 Iterator().Backward(1);
+                isUnderscore_ = true;
 
                 if (Iterator().Peek() == LEX_CHAR_DOT || !allowNumericSeparator || !allowNumericOnNext) {
                     Iterator().Forward(1);
@@ -421,6 +422,10 @@ void Lexer::ScanNumber(bool allowNumericSeparator, bool allowBigInt)
         if (!allowBigInt) {
             ThrowError("Invalid BigInt number");
         }
+        if (isUnderscore_) {
+            ConvertNumber(exponentSignPos);
+            isUnderscore_ = false;
+        }
 
         return;
     }
diff --git a/es2panda/lexer/lexer.h b/es2panda/lexer/lexer.h
index b830227025..8e56da6ed2 100644
--- a/es2panda/lexer/lexer.h
+++ b/es2panda/lexer/lexer.h
@@ -174,6 +174,7 @@ private:
     const parser::ParserContext *parserContext_;
     util::StringView source_;
     LexerPosition pos_;
+    bool isUnderscore_ = false;
 };
 
 class TemplateLiteralParserContext {
diff --git a/test262/es2021_tests.txt b/test262/es2021_tests.txt
index 2c8dfed8b2..621ccf078c 100644
--- a/test262/es2021_tests.txt
+++ b/test262/es2021_tests.txt
@@ -1121,6 +1121,24 @@ annexB/built-ins/RegExp/incomplete_hex_unicode_escape.js
 annexB/built-ins/RegExp/named-groups/non-unicode-malformed-lookbehind.js
 annexB/built-ins/RegExp/named-groups/non-unicode-malformed.js
 language/literals/bigint/numeric-separators/numeric-separator-literal-unicode-err.js
+language/literals/bigint/numeric-separators/numeric-separator-literal-bil-bd-nsl-bd-err.js
+language/literals/bigint/numeric-separators/numeric-separator-literal-dds-nsl-dds-dunder-err.js
+language/literals/bigint/numeric-separators/numeric-separator-literal-dd-nsl-dds-dunder-err.js
+language/literals/bigint/numeric-separators/numeric-separator-literal-dds-nsl-err.js
+language/literals/bigint/numeric-separators/numeric-separator-literal-bil-nsl-bd-dunder-err.js
+language/literals/bigint/numeric-separators/numeric-separator-literal-hil-nsl-hd-dunder-err.js
+language/literals/bigint/numeric-separators/numeric-separator-literal-bil-nsl-bd-err.js
+language/literals/bigint/numeric-separators/numeric-separator-literal-hil-hd-nsl-hd-err.js
+language/literals/bigint/numeric-separators/numeric-separator-literal-oil-nsl-od-dunder-err.js
+language/literals/bigint/numeric-separators/numeric-separator-literal-lol-00-err.js
+language/literals/bigint/numeric-separators/numeric-separator-literal-hil-nsl-hd-err.js
+language/literals/bigint/numeric-separators/numeric-separator-literal-unicode-err.js
+language/literals/bigint/numeric-separators/numeric-separator-literal-dd-nsl-err.js
+language/literals/bigint/numeric-separators/numeric-separator-literal-lol-01-err.js
+language/literals/bigint/numeric-separators/numeric-separator-literal-lol-07-err.js
+language/literals/bigint/numeric-separators/numeric-separator-literal-nzd-nsl-dds-dunder-err.js
+language/literals/bigint/numeric-separators/numeric-separator-literal-oil-nsl-od-err.js
+language/literals/bigint/numeric-separators/numeric-separator-literal-oil-od-nsl-od-err.js
 language/literals/string/unicode-escape-nls-err-single.js
 language/literals/string/unicode-escape-no-hex-err-single.js
 language/literals/string/unicode-escape-nls-err-double.js
-- 
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