Ignore precedence for prefix operators

Since the operator appears at the start of an expression or after another
operator, there's no way for it to bind to anything but whatever follows.
This fixes a bug where chained prefix operators were not recognized.

diff --git a/source/glsl/parser.cpp b/source/glsl/parser.cpp
index c924606f09c018c33388b020ec23100aa5a291f4..d2261126a652d109deba3c4193713568dc317616 100644 (file)
--- a/source/glsl/parser.cpp
+++ b/source/glsl/parser.cpp
@@ -447,7 +447,8 @@ RefPtr<Expression> Parser::parse_expression(unsigned precedence)
                        if(token==i->token && (!left || i->type!=Operator::PREFIX) && (left || i->type!=Operator::POSTFIX))
                                oper = i;
 
-               if(token==";" || token==")" || token=="]" || token=="," || (oper && precedence && oper->precedence>=precedence))
+               bool lower_precedence = (oper && oper->type!=Operator::PREFIX && precedence && oper->precedence>=precedence);
+               if(token==";" || token==")" || token=="]" || token=="," || lower_precedence)
                {
                        if(left)
                                return left;