From 9ed05ef421bdc19f2f931544a24298e080a5ed30 Mon Sep 17 00:00:00 2001
From: Li Jin <dragon-fly@qq.com>
Date: Thu, 19 Feb 2026 19:03:07 +0800
Subject: Preserve blank lines between table comments with reserve-comments

---
 src/yuescript/yue_ast.h        | 4 ++--
 src/yuescript/yue_compiler.cpp | 8 ++++++++
 src/yuescript/yue_parser.cpp   | 5 +++--
 3 files changed, 13 insertions(+), 4 deletions(-)

(limited to 'src')

diff --git a/src/yuescript/yue_ast.h b/src/yuescript/yue_ast.h
index d44815e..3236b5a 100644
--- a/src/yuescript/yue_ast.h
+++ b/src/yuescript/yue_ast.h
@@ -730,13 +730,13 @@ AST_NODE(TableBlockIndent)
 	ast_sel_list<false,
 		VariablePair_t, NormalPair_t, Exp_t, TableBlockIndent_t,
 		MetaVariablePair_t, MetaNormalPair_t,
-		YueComment_t> values;
+		YueComment_t, EmptyLine_t> values;
 	AST_MEMBER(TableBlockIndent, &sep, &values)
 AST_END(TableBlockIndent)
 
 AST_NODE(TableBlock)
 	ast_ptr<true, Seperator_t> sep;
-	ast_sel_list<false, VariablePair_t, NormalPair_t, TableBlockIndent_t, Exp_t, TableBlock_t, SpreadExp_t, MetaVariablePair_t, MetaNormalPair_t, YueComment_t> values;
+	ast_sel_list<false, VariablePair_t, NormalPair_t, TableBlockIndent_t, Exp_t, TableBlock_t, SpreadExp_t, MetaVariablePair_t, MetaNormalPair_t, YueComment_t, EmptyLine_t> values;
 	AST_MEMBER(TableBlock, &sep, &values)
 AST_END(TableBlock)
 
diff --git a/src/yuescript/yue_compiler.cpp b/src/yuescript/yue_compiler.cpp
index f67e921..38e9fbb 100644
--- a/src/yuescript/yue_compiler.cpp
+++ b/src/yuescript/yue_compiler.cpp
@@ -734,6 +734,7 @@ private:
 				return isLocal(variableToString(pair->name));
 			}
 			case id<YueComment_t>():
+			case id<EmptyLine_t>():
 				return true;
 			case id<MetaNormalPair_t>(): {
 				auto pair = static_cast<MetaNormalPair_t*>(item);
@@ -8219,6 +8220,8 @@ private:
 		auto metatable = x->new_ptr<SimpleTable_t>();
 		ast_sel<false, Exp_t, TableBlock_t> metatableItem;
 		ast_node* lastValueNode = values.back();
+		int lastValueLine = x->m_begin.m_line;
+		bool prevWasEmptyLine = false;
 		if (!_config.reserveComment) {
 			for (auto it = values.rbegin(); it != values.rend(); ++it) {
 				auto node = *it;
@@ -8280,6 +8283,9 @@ private:
 			switch (item->get_id()) {
 				case id<Exp_t>(): transformExp(static_cast<Exp_t*>(item), temp, ExpUsage::Closure); break;
 				case id<YueComment_t>(): {
+					if (_config.reserveComment && !prevWasEmptyLine && value->m_begin.m_line > lastValueLine + 1) {
+						temp.emplace_back(Empty);
+					}
 					auto comment = static_cast<YueComment_t*>(item);
 					temp.emplace_back(comment->to_string(&_config));
 					skipComma = true;
@@ -8352,6 +8358,8 @@ private:
 					temp.back() = indent() + (value == lastValueNode ? temp.back() : temp.back() + ',') + nl(value);
 				}
 			}
+			lastValueLine = value->m_end.m_line;
+			prevWasEmptyLine = ast_is<EmptyLine_t>(value);
 		}
 		if (metatable->pairs.empty() && !metatableItem) {
 			out.push_back('{' + nl(x) + join(temp));
diff --git a/src/yuescript/yue_parser.cpp b/src/yuescript/yue_parser.cpp
index 21f19a3..ffe3ad2 100644
--- a/src/yuescript/yue_parser.cpp
+++ b/src/yuescript/yue_parser.cpp
@@ -909,11 +909,11 @@ YueParser::YueParser() {
 			white >> '}'
 		);
 
-	table_block_inner = Seperator >> key_value_line >> *((+(plain_space >> line_break) >> key_value_line) | (+space_break >> not_(expr("--")) >> key_value_line));
+	table_block_inner = Seperator >> key_value_line >> *(((plain_space >> line_break) >> key_value_line) | (+space_break >> not_(expr("--")) >> key_value_line));
 	TableBlock = ((+(plain_space >> line_break)) | (+space_break >> not_(expr("--")))) >> advance_match >> ensure(table_block_inner, pop_indent);
 	TableBlockIndent = ('*' | '-' >> space_one) >> Seperator >> disable_arg_table_block_rule(
 		space >> key_value_list >> -(space >> ',') >>
-		-((plain_space >> line_break >> advance_match >> space >> ensure(key_value_list >> -(space >> ',') >> *((+(plain_space >> line_break) >> key_value_line) | (+space_break >> not_(expr("--")) >> key_value_line)), pop_indent)) |
+		-((plain_space >> line_break >> advance_match >> space >> ensure(key_value_list >> -(space >> ',') >> *(((plain_space >> line_break) >> key_value_line) | (+space_break >> not_(expr("--")) >> key_value_line)), pop_indent)) |
 		  (+space_break >> advance_match >> space >> ensure(key_value_list >> -(space >> ',') >> *(+space_break >> key_value_line), pop_indent))));
 
 	ClassMemberList = Seperator >> key_value >> *(space >> ',' >> space >> key_value);
@@ -1019,6 +1019,7 @@ YueParser::YueParser() {
 		MetaNormalPair;
 	key_value_list = key_value >> *(space >> ',' >> space >> key_value);
 	key_value_line =
+		(EmptyLine >> YueComment) |
 		YueComment |
 		check_indent_match >> space >> (
 			key_value_list >> -(space >> ',') |
-- 
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