X-Git-Url: http://git.tdb.fi/?p=libs%2Fgl.git;a=blobdiff_plain;f=source%2Fglsl%2Fparser.cpp;h=b4631daf6d1c4e5b3cafa638400bd94e9d157074;hp=fd782648083bdb05a1aa700ca65d4ab8f15aa926;hb=1476e64621ecbd7b17b00ae2c958322fd39918de;hpb=9229a3e70dace406d897148857ed6567986c3bcd diff --git a/source/glsl/parser.cpp b/source/glsl/parser.cpp index fd782648..b4631daf 100644 --- a/source/glsl/parser.cpp +++ b/source/glsl/parser.cpp @@ -434,8 +434,9 @@ void Parser::parse_block(Block &block, bool require_braces, RefPtr (Parser::* tokenizer.expect("}"); } -RefPtr Parser::parse_expression(unsigned precedence) +RefPtr Parser::parse_expression(const Operator *outer_oper) { + unsigned outer_precedence = (outer_oper ? outer_oper->precedence+(outer_oper->assoc==Operator::RIGHT_TO_LEFT) : 20); RefPtr left; VariableReference *left_var = 0; while(1) @@ -447,7 +448,7 @@ RefPtr Parser::parse_expression(unsigned precedence) if(token==i->token && (!left || i->type!=Operator::PREFIX) && (left || i->type!=Operator::POSTFIX)) oper = i; - bool lower_precedence = (oper && oper->type!=Operator::PREFIX && precedence && oper->precedence>=precedence); + bool lower_precedence = (oper && oper->type!=Operator::PREFIX && oper->precedence>=outer_precedence); if(token==";" || token==")" || token=="]" || token=="," || lower_precedence) { if(left) @@ -510,7 +511,7 @@ RefPtr Parser::parse_expression(unsigned precedence) RefPtr unary = create_node(); unary->oper = oper; tokenizer.parse_token(); - unary->expression = parse_expression(oper->precedence); + unary->expression = parse_expression(oper); left = unary; } else @@ -552,7 +553,7 @@ RefPtr Parser::parse_binary(const RefPtr &left, co tokenizer.expect("]"); } else - binary->right = parse_expression(oper.precedence+(oper.assoc==Operator::RIGHT_TO_LEFT)); + binary->right = parse_expression(&oper); return binary; }