From 2faf55a8217690988bc2cab7cc65541dc2215dc1 Mon Sep 17 00:00:00 2001
From: Li Jin <dragon-fly@qq.com>
Date: Mon, 17 Jul 2023 12:06:04 +0800
Subject: raise error when writing a confusing expression in in-expression.

---
 src/yuescript/yue_compiler.cpp | 2 +-
 src/yuescript/yue_parser.cpp   | 7 ++++++-
 src/yuescript/yue_parser.h     | 1 +
 3 files changed, 8 insertions(+), 2 deletions(-)

(limited to 'src')

diff --git a/src/yuescript/yue_compiler.cpp b/src/yuescript/yue_compiler.cpp
index c6cc4ba..bb715d2 100644
--- a/src/yuescript/yue_compiler.cpp
+++ b/src/yuescript/yue_compiler.cpp
@@ -72,7 +72,7 @@ static std::unordered_set<std::string> Metamethods = {
 	"close"s // Lua 5.4
 };
 
-const std::string_view version = "0.17.6"sv;
+const std::string_view version = "0.17.7"sv;
 const std::string_view extension = "yue"sv;
 
 class CompileError : public std::logic_error {
diff --git a/src/yuescript/yue_parser.cpp b/src/yuescript/yue_parser.cpp
index 66ef373..f9dc33a 100644
--- a/src/yuescript/yue_parser.cpp
+++ b/src/yuescript/yue_parser.cpp
@@ -103,6 +103,11 @@ YueParser::YueParser() {
 		return false;
 	});
 
+	confusing_unary_not_error = pl::user(true_(), [](const item_t& item) {
+		throw ParserError("deprecated unary operator not"sv, item.begin);
+		return false;
+	});
+
 	#define ensure(patt, finally) ((patt) >> (finally) | (finally) >> cut)
 
 	#define key(str) (expr(str) >> not_alpha_num)
@@ -464,7 +469,7 @@ YueParser::YueParser() {
 	NotIn = true_();
 	InRange = ('(' >> InRangeOpen | '[' >> InRangeClose) >> space >> Exp >> space >> ',' >> space >> Exp >> space >> (')' >> InRangeOpen | ']' >> InRangeClose);
 	InDiscrete = '{' >> Seperator >> space >> exp_not_tab >> *(space >> ',' >> space >> exp_not_tab) >> space >> '}';
-	In = -(key("not") >> NotIn >> space) >> key("in") >> space >> (InRange | InDiscrete | Exp);
+	In = -(key("not") >> NotIn >> space) >> key("in") >> space >> (InRange | InDiscrete | key("not") >> confusing_unary_not_error | Exp);
 
 	UnaryOperator =
 		'-' >> not_(set(">=") | space_one) |
diff --git a/src/yuescript/yue_parser.h b/src/yuescript/yue_parser.h
index ac6524d..dd5e253 100644
--- a/src/yuescript/yue_parser.h
+++ b/src/yuescript/yue_parser.h
@@ -138,6 +138,7 @@ private:
 	NONE_AST_RULE(brackets_expression_error);
 	NONE_AST_RULE(export_expression_error);
 	NONE_AST_RULE(invalid_interpolation_error);
+	NONE_AST_RULE(confusing_unary_not_error);
 
 	NONE_AST_RULE(inc_exp_level);
 	NONE_AST_RULE(dec_exp_level);
-- 
cgit v1.2.3-55-g6feb