Merge pull request #41897 from strank/not-in-conditional-done

Add a "not in" operator to GDScript.

modules/gdscript/gdscript_parser.cpp

@@ -2080,6 +2080,17 @@ GDScriptParser::ExpressionNode *GDScriptParser::parse_unary_operator(ExpressionN
 	return operation;
 }
 
+GDScriptParser::ExpressionNode *GDScriptParser::parse_binary_not_in_operator(ExpressionNode *p_previous_operand, bool p_can_assign) {
+	// check that NOT is followed by IN by consuming it before calling parse_binary_operator which will only receive a plain IN
+	consume(GDScriptTokenizer::Token::IN, R"(Expected "in" after "not" in content-test operator.)");
+	ExpressionNode *in_operation = parse_binary_operator(p_previous_operand, p_can_assign);
+	UnaryOpNode *operation = alloc_node<UnaryOpNode>();
+	operation->operation = UnaryOpNode::OP_LOGIC_NOT;
+	operation->variant_op = Variant::OP_NOT;
+	operation->operand = in_operation;
+	return operation;
+}
+
 GDScriptParser::ExpressionNode *GDScriptParser::parse_binary_operator(ExpressionNode *p_previous_operand, bool p_can_assign) {
 	GDScriptTokenizer::Token op = previous;
 	BinaryOpNode *operation = alloc_node<BinaryOpNode>();
@@ -2906,7 +2917,7 @@ GDScriptParser::ParseRule *GDScriptParser::get_rule(GDScriptTokenizer::Token::Ty
 		// Logical
 		{ nullptr,                                          &GDScriptParser::parse_binary_operator,      	PREC_LOGIC_AND }, // AND,
 		{ nullptr,                                          &GDScriptParser::parse_binary_operator,      	PREC_LOGIC_OR }, // OR,
-		{ &GDScriptParser::parse_unary_operator,         	nullptr,                                        PREC_NONE }, // NOT,
+		{ &GDScriptParser::parse_unary_operator,         	&GDScriptParser::parse_binary_not_in_operator,	PREC_CONTENT_TEST }, // NOT,
 		{ nullptr,                                          &GDScriptParser::parse_binary_operator,			PREC_LOGIC_AND }, // AMPERSAND_AMPERSAND,
 		{ nullptr,                                          &GDScriptParser::parse_binary_operator,			PREC_LOGIC_OR }, // PIPE_PIPE,
 		{ &GDScriptParser::parse_unary_operator,			nullptr,                                        PREC_NONE }, // BANG,

modules/gdscript/gdscript_parser.h

@@ -1285,6 +1285,7 @@ private:
 	ExpressionNode *parse_builtin_constant(ExpressionNode *p_previous_operand, bool p_can_assign);
 	ExpressionNode *parse_unary_operator(ExpressionNode *p_previous_operand, bool p_can_assign);
 	ExpressionNode *parse_binary_operator(ExpressionNode *p_previous_operand, bool p_can_assign);
+	ExpressionNode *parse_binary_not_in_operator(ExpressionNode *p_previous_operand, bool p_can_assign);
 	ExpressionNode *parse_ternary_operator(ExpressionNode *p_previous_operand, bool p_can_assign);
 	ExpressionNode *parse_assignment(ExpressionNode *p_previous_operand, bool p_can_assign);
 	ExpressionNode *parse_array(ExpressionNode *p_previous_operand, bool p_can_assign);